Rheem R95P Installation Instructions Manual

SINGLE-STAGE GAS FURNACES (-)95P SERIES U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec- ommended in all applications, and their installation should be in accordance with the manufacturer’s recommendations and/or local laws, rules, regulations, or customs. 92-24161-111-03 SUPERSEDES 92-24161-111-02 Factory Use Only

1 TABLE OF CONTENTS. . . . . . . . . . . . . . . . . . . . . . . 2 2 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . 3 Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 California Proposition 65 Note . . . . . . . . . . . . . . . . . . 4 Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 SAFETY INFORMATION. . . . . . . . . . . . . . . . . . . . . . 6 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Important Information About Efficiency and Quality. . 7 Commonwealth of Massachusetts Note . . . . . . . . . . 8 4 LOCATION REQUIREMENTS . . . . . . . . . . . . . . . . . 9 Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Clearance Accessibility. . . . . . . . . . . . . . . . . . . . . . . 10 Clearance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 FIELD CONVERSION . . . . . . . . . . . . . . . . . . . . . . . 12 General Conversion Instructions and Tips. . . . . . . . 12 Lists of Materials for Parts Bag and Conversion Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Conversion Table of Contents . . . . . . . . . . . . . . . . . 14 Upflow with Vertical Vent. . . . . . . . . . . . . . . . . . . 15-16 Upflow with Left Side Vent . . . . . . . . . . . . . . . . . 17-18 Downflow with Right Vent (Non Zero Clearance) 19-22 Downflow Zero-Clearance . . . . . . . . . . . . . . . . . 23-27 Horizontal Right with Right Vent . . . . . . . . . . . . . 29-30 Horizontal Right with Vertical Vent . . . . . . . . . . . 31-33 Horizontal Left with Right Vent . . . . . . . . . . . . . . 34-38 Horizontal Left with Left Vent . . . . . . . . . . . . . . . 39-41 6 DUCTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 7 VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 General Venting Requirements and Guidelines (All Instructions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Venting and Combustion Air Piping Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Piping Requirements . . . . . . . . . . . . . . . . . . . . . . 48 Vent Pipe Sizing and Maximum Lengths . . . . . . . 48 Equivalent Vent Length. . . . . . . . . . . . . . . . . . . . . 49 Polypropylene Vent Products . . . . . . . . . . . . . . . . 50 Termination Requirements . . . . . . . . . . . . . . . . . . 51 Non-Direct Venting . . . . . . . . . . . . . . . . . . . . . . . . . 52 Non-Direct Venting in an Unconfined Space . . . . 52 Non-Direct Venting in a Confined Space . . . . . . . 52 Non-Direct Venting Termination . . . . . . . . . . . . . . 55 Non-Direct Venting Termination Clearances . . . . 57 Direct Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Option 1: Standard Vertical Direct Vent Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Option 2: Standard Horizontal Direct Vent Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Option 3: Variant of Standard Horizontal Direct Vent Termination. . . . . . . . . . . . . . . . . . . 60 Option 4: Alternate Horizontal Direct Vent Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Option 5: Variant of Alternate Horizontal Direct Vent Termination. . . . . . . . . . . . . . . . . . . 61 Optional Termination Angles for Alt. Horizontal and Variant of Alt. Horizontal Direct-Vent Terminations (Options 4 and 5) . . . 62 Option 6 & 7: Vertical and Horizontal Concentric Vent Termination (RXGY-E02A and RXGY-E03A) . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Option 8: Sidewall Vent Kit for Direct Vent Termination (RXGY-G02) . . . . . . . . . . . . . . . . . 64 Direct Venting Termination Clearances . . . . . . . . 65 Multiventing of Direct Vent Furnaces . . . . . . . . . . 66 8 CONDENSATE DRAIN AND DRAIN NEUTRALIZER . . . . . . . . . . . . . . . . . . . . . . . . . . 67 9 GAS SUPPLY AND PIPING Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 10 LP CONVERSION . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Setting the Gas Pressure . . . . . . . . . . . . . . . . . . . . . 75 11 ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . 76 Reversing the Electrical Connection . . . . . . . . . . . . 76 Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 12 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Electronic Air Cleaner. . . . . . . . . . . . . . . . . . . . . . . . 78 Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 13 TWINNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 14 HIGH ALTITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Natural Gas at High Altitudes . . . . . . . . . . . . . . . . . . 83 LP Gas at High Altitudes. . . . . . . . . . . . . . . . . . . . . . 85 15 STARTUP PROCEDURE . . . . . . . . . . . . . . . . . . . . 86 Sequence of Operations. . . . . . . . . . . . . . . . . . . . . . 86 16 DIAGNOSTICS AND FAULT CODES. . . . . . . . . . . 87 17 LOCKOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 18 FIELD SELECTIONS – DIPSWITCHES. . . . . . . . . 89 19 FAULT CLEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 20 FAULT RECALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 21 FLAME STATUS L.E.D.. . . . . . . . . . . . . . . . . . . . . . 90 22 TIMING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . 90 23 ADJUSTING OR CHECKING FURNACE INPUT . 91 24 SETTING INPUT RATE . . . . . . . . . . . . . . . . . . . . . . 91 25 AIRFLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Blower Speed Selection . . . . . . . . . . . . . . . . . . . . . . 93 26 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 27 SYSTEM OPERATION INFO . . . . . . . . . . . . . . . . . 95 28 ANNUAL INSPECTION. . . . . . . . . . . . . . . . . . . . . . 95 29 REPLACEMENT PARTS. . . . . . . . . . . . . . . . . . . . . 95 30 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 95 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . 96 31 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 97

6 MAIN PRESSURE SWITCH 7 EXHAUST TRANSITION 8 COUPLING (ELBOW TO TRANSITION) 9 EXHAUST 10 SHIPPING PLUG 11 FLAME SENSOR 12 OVER TEMPERATURE SWITCH 13 TOP PLATE 14 BURNER 15 IGNITER 16 COMBUSTION AIR INLET 17 GAS VALVE 18 INDUCED DRAFT BLOWER (IDB) 19 CAPACITOR 20 CONTROL MOUNTING PLATE 21 BLOWER 22 LOW VOLTAGE TERMINAL 23 COUPLING (IDB TO ELBOW) 24 FURNACE CONTROL ST-A1194-02-XO FIGURE 1 FURNACE COMPONENTS NOTE: A heat loss calculation must be performed to prop- erly determine the required furnace BTU size for the struc- ture. Also, the duct must be properly designed and installed for proper airflow. Existing ductwork must be in- spected for proper size and to make sure that it is properly sealed. Proper airflow is necessary for both user comfort and equipment performance. Before opening the furnace carton, verify that the data tags on the carton specify the furnace model number that was ordered from the distributor and are correct for the installation. If not, return the unit without opening the carton. If the model number is correct, open the carton and verify that the furnace rating label specifies the same furnace model number that is specified on the car- ton label. If the model numbers do not match, return the furnace to the distributor. IMPORTANT: Proper application, installation and mainte- nance of this furnace and system is a must if consumers are to receive the full benefits for which they have paid. The (-)95P series furnaces are design-certified by CSA for use with natural and propane gases as follows: 1. As non-direct vent central forced air furnaces taking combustion air from the installation area or using air ducted from the outside. 2. As direct vent central forced air furnaces with all com- bustion air supplied directly to the furnace burners through a special air intake system outlined in these in- structions.Install this furnace in accordance with the American National Standard Z223.1 – latest edition enti- tled “National Fuel Gas Code” (NFPA54) and require- ments or codes of the local utilities or other authorities having jurisdiction. This is available from the following: National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 CSA-INTERNATIONAL 8501 East Pleasant Valley Road Cleveland, Ohio 44131-5575

Install units in Canada in accordance with CSA-B149, local installation codes and authorities having jurisdiction. CSA- B149.1 is available from: CSA INTERNATIONAL 5060 Spectrum Way Mississauga, Ontario Canada L4W 5N6 or www.csa.ca NOTICE: Any equipment immersed in water (including by flooding) must be replaced. Equipment and products im- mersed in water will have operation adversely affected thereby voiding the warranty. RECEIVING Immediately upon receipt, all cartons and contents should be inspected for transit damage. Units with damaged car- tons should be opened immediately. If damage is found, it should be noted on the delivery papers, and a damage claim filed with the last carrier. • After unit has been delivered to job site, remove carton taking care not to damage unit. • Check the unit rating plate to be sure equipment matches job specifications. • Read the entire instructions before starting the installa- tion. • Install the unit in such a way as to allow necessary ac- cess for service. • Always remove the solid metal base pan from the top of the furnace. The base pan is installed in this location for shipping purposes only and should never remain in the as-shipped location after installation. • Install the unit with a 1/4” to 1/2” forward slope (toward front) to ensure proper drainage. • Install the unit in accordance with any local code which may apply and the national codes. Latest editions are available from: “National Fire Protection Association, Inc., Batterymarch Park, Quincy, MA 02269.” These pub- lications are: • ANSI/NFPA No. 70-(Latest Edition) National Electrical Code. • NFPA90A Installation of Air Conditioning and Ventilating Systems. • NFPA90B Installation of warm air heating and air condi- tioning systems. • In Canada CSA 22.2 Canadian Electrical Code. CALIFORNIA RESIDENTS ONLY IMPORTANT: All manufacturer products meet current Fed- eral OSHA Guidelines for safety. California Proposition 65 warnings are required for certain products, which are not covered by the OSHA standards. California's Proposition 65 requires warnings for products sold in California that contain, or produce, any of over 600 listed chemicals known to the State of California to cause cancer or birth defects such as fiberglass insulation, lead in brass, and combustion products from natural gas. All “new equipment” shipped for sale in California will have labels stating that the product contains and/or produces Proposition 65 chemicals. Although we have not changed our processes, having the same label on all our products facilitates manufacturing and shipping. We cannot always know “when, or if” products will be sold in the California market. You may receive inquiries from customers about chemicals found in, or produced by, some of our heating and air-con- ditioning equipment, or found in natural gas used with some of our products. Listed below are those chemicals and sub- stances commonly associated with similar equipment in our industry and other manufacturers. • Glass Wool (Fiberglass) Insulation • Carbon Monoxide (CO) • Formaldehyde • Benzene More details are available at the Websites for OSHA (Occu- pational Safety and Health Administration), at www.osha.gov and the State of California's OEHHA (Office of Environmental Health Hazard Assessment), at www.oehha.org. Consumer education is important since the chemicals and substances on the list are found in our daily lives. Most consumers are aware that products present safety and health risks, when improperly used, handled and maintained. General Information GENERAL INFORMATION (cont.)

GAS SUPPLY ______ Correct pipe size (record size) ______ Correct supply pressure (during furnace operation) ______ (record pressure) ______ Manifold pressure (record upstream pressure) ______ No gas leaks ______ L.P. Kit Number (if applicable) (record kit number) ELECTRICAL ______ 115 V.A.C. supply (Dedicated Circuit) (record voltage) ______ Polarity observed ______ Furnace properly grounded ______ Correct wire size (record type and gauge) FURNACE INSTALLATION ______ Correct clearance to combustibles (record ______ clearance) ______ Correct clearance for service (at front) (record ______ clearance) DUCT STATIC PRESSURE ______ in. w.c. on heating speed (record static pressure) ______ in. w.c. on cooling speed (record static pressure) ______ Air temperature rise in heat (record air temperature ______ rise) ______ Air temperature rise in cool (record air temperature ______ rise) CONDENSATE LINE ______ Trap filled with water ______ Vented ______ Sloped toward drain ______ Condensate drain line hoses connected and ______ clamped ______ Freeze protection (if necessary) VENTING – DIRECT VENT ______ in. diameter – intake pipe (record diameter) ______ in. diameter – exhaust pipe (record diameter) ______ ft. of pipe – intake air (record length) ______ no. of elbows – intake air (record number of ______ elbows) ______ ft. of pipe – exhaust pipe (record length) ______ no. of elbows – exhaust pipe (record number of ______ elbows) ______ Exhaust Vent Temperature (record temperature) TERMINATIONS – DIRECT VENT VERTICAL ______ Intake – 12" [305mm] min. above roof/snow level (18" [457mm] in Canada) (record height above anticipated snow level) ______ Correct relationship – exhaust to intake HORIZONTAL/VERTICAL – CONCENTRIC (RXGY-E03A) ______ Intake – 12" [305mm] min. above roof/snow level (18" [457mm] in Canada) (record height above anticipated snow level) ______ Exhaust sloped down toward furnace ______ Correct distances (horizontal and vertical) – exhaust to intake ______ 12" [305mm] min. above grade/snow level (18" [457mm] in Canada) (record height above anticipated snow level) ______ Above anticipated snow level (record maximum ______ anticipated snow level) VENTING – NON-DIRECT VENT ______ in. diameter – exhaust pipe (record diameter) ______ ft. of pipe – exhaust (record length) ______ no. of elbows (record number of elbows) TERMINATION – NON-DIRECT VENT VERTICAL ______ 12" [305mm] min. above roof/snow level (18" [457mm] in Canada) (record height above anticipated snow level) HORIZONTAL – STANDARD ______ 12" [305mm] min. above grade/snow level (18" [457mm] in Canada) (record height above anticipated snow level) General Information Installation Instructions remain with the furnace as a reference guide to the servicing contractor. We recommend that performance and installation data be recorded for future reference on this sheet to meet service and warranty obligations so that job site information is available when required.

THIS FURNACE IS NOT APPROVED FOR INSTALLATION IN A MOBILE HOME. DOING SO COULD CAUSE FIRE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. ! WARNING INSTALL THIS FURNACE ONLY IN A LOCATION AND PO- SITION AS SPECIFIED IN THE LOCATION REQUIRE- MENTS AND CONSIDERATIONS SECTION OF THESE INSTRUCTIONS. ! WARNING IMPROPER INSTALLATION, OR INSTALLATION NOT MADE IN ACCORDANCE WITH THE CSA INTERNATIONAL (CSA) CERTIFICATION OR THESE INSTRUCTIONS, CAN RESULT IN UNSATISFACTORY OPERATION AND/OR DAN- GEROUS CONDITIONS AND ARE NOT COVERED BY THE MANUFACTURER’S WARRANTY. SAFETY INFORMATION ! WARNING DO NOT BYPASS, JUMPER, OR REMOVE ANY SAFETY SWITCH FROM THE FURNACE CONTROL CIRCUIT. IF A SAFETY SWITCH CAUSES THE FURNACE TO SHUT DOWN OR OPERATE INTERMITTENTLY, IT IS AN INDICA- TION OF A POTENTIAL SAFETY HAZARD THAT MUST BE ADDRESSED BY A QUALIFIED TECHNICIAN, SERVICE AGENCY OR THE GAS SUPPLIER. DO NOT RESET SAFETY CONTROLS WITHOUT CORRECTIVE ACTION AND/OR VERIFICATION OF PROPER SAFE OPERATION BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER. REPLACE ANY SAFETY CONTROL COMPONENT ONLY WITH IDENTICAL OEM REPLACEMENT PARTS. WHEN A NEW SAFETY SWITCH IS INSTALLED, IT MUST BE TESTED FOR A MINIMUM OF 15 MINUTES WITH THE FURNACE OPERATING AT MAXIMUM INPUT RATE AND WITH BOTH BLOWER AND BURNER DOOR INSTALLED. IF THE FURNACE IS INSTALLED IN A CLOSET, THE CLOSET DOOR MUST ALSO BE CLOSED FOR THIS TEST. REPEAT THE TEST AT THE MINIMUM INPUT RATE IF THE FURNACE IS A MULTI-STAGE FURNACE. ! WARNING USE ONLY WITH THE TYPE OF GAS APPROVED FOR THIS FURNACE. REFER TO THE FURNACE RATING PLATE. ! WARNING NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME. USE A COMMERCIALLY AVAILABLE SOAP SOLUTION MADE SPECIFICALLY FOR THE DETECTION OF LEAKS TO CHECK ALL CONNECTIONS, AS SPECIFIED IN GAS SUPPLY AND PIPING SECTION OF THESE INSTRUC- TIONS. ! WARNING COMBUSTION AND VENTILATION AIR MUST BE PRO- VIDED TO THE FURNACE AS REQUIRED BY THE NA- TIONAL FUEL-GAS CODE (U.S.) AND CSA B149.1 (CANADA) AND THE COMBUSTION AND VENTILATION AIR SECTION OF THESE INSTRUCTIONS. ! WARNING COMBUSTION PRODUCTS MUST BE DISCHARGED OUT- DOORS. CONNECT THIS FURNACE TO AN APPROVED VENT SYSTEM ONLY, AS SPECIFIED IN THE VENT PIPE INSTALLATION SECTION OF THESE INSTRUCTIONS. ! WARNING WHEN A FURNACE IS INSTALLED SO THAT SUPPLY DUCTS CARRY AIR CIRCULATED BY THE FURNACE TO AREAS OUTSIDE THE SPACE CONTAINING THE FUR- NACE, THE RETURN AIR SHALL ALSO BE HANDLED BY DUCT(S) SEALED TO THE FURNACE CASING AND TERMI- NATING OUTSIDE THE SPACE CONTAINING THE FUR- NACE. ! WARNING WHENEVER THE FACTORY RETURN-AIR CONNECTION IS NOT USED IT MUST BE SEALED. A SOLID METAL BASE PLATE MUST BE INSTALLED AND SEALED. FAC- TORY BASE PLATES ARE AVAILABLE AS ACCESSORY ITEMS. (PART NUMBERS ARE LISTED IN THE SPEC SHEET FOR THE FURNACE.) FAILURE TO INSTALL AND SEAL THE BASE PLATE AND RETURN AIR DUCT CON- NECTIONS MAY ALLOW CARBON MONOXIDE AND OTHER CONTAMINANTS TO BE DRAWN INTO THE CON- DITIONED AIR SPACE AND DISTRIBUTED THROUGHOUT THE HEATED SPACE. ! WARNING DO NOT OPERATE THE SYSTEM WITHOUT FILTERS. A PORTION OF THE DUST ENTRAINED IN THE AIR MAY TEMPORARILY LODGE IN THE AIR DUCT RUNS AND AT THE SUPPLY REGISTERS. ANY CIRCULATED DUST PAR- TICLES WILL BE HEATED AND CHARRED BY CONTACT WITH THE FURNACE HEAT EXCHANGER. THIS SOOTY RESIDUE WILL SOIL CEILINGS, WALLS, DRAPES, CAR- PETS AND OTHER HOUSEHOLD ARTICLES. SOOT DAM- AGE MAY ALSO RESULT WITH, OR WITHOUT, FILTERS IN PLACE, WHEN CERTAIN TYPES OF CANDLES ARE BURNED, OR CANDLEWICKS ARE LEFT UNTRIMMED. ! WARNING IN COMPLIANCE WITH RECOGNIZED CODES, IT IS REC- OMMENDED THAT AN AUXILIARY DRAIN PAN BE IN- STALLED UNDER THIS FURNACE AND ANY INSTALLED EVAPORATOR COIL THAT IS LOCATED IN ANY AREA OF A STRUCTURE WHERE DAMAGE TO THE BUILDING OR BUILDING CONTENTS MAY OCCUR AS A RESULT OF AN OVERFLOW OF THE FURNACE CONDENSATE DISPOSAL SYSTEM OR THE COIL DRAIN PAN OR A STOPPAGE IN THE PRIMARY CONDENSATE DRAIN PIPING.

INDOOR AIR QUALITY Central cooling and heating equipment is only as efficient as the duct system that carries the cooled or heated air. To maintain efficiency, comfort and good indoor air quality, it is important to have the proper balance between the air supplied to each room and the air returning to the cooling and heating equipment. Proper balance and sealing of the duct system improves the efficiency of the heating and air conditioning system and improves the indoor air quality of the home by reduc- ing the amount of airborne pollutants that enter homes from spaces where the ductwork and / or equipment is lo- cated. The manufacturer and the U.S. Environmental Pro- tection Agency’s Energy Star Program recommend that central duct systems be checked by a qualified contractor for proper balance and sealing. Safety Information SAFETY ! WARNING ALWAYS INSTALL THE FURNACE TO OPERATE WITHIN THE FURNACE’S INTENDED TEMPERATURE-RISE RANGE WITH A DUCT SYSTEM WHICH HAS AN EXTER- NAL STATIC PRESSURE WITHIN THE ALLOWABLE RANGE, AS SPECIFIED IN THE DUCTING SECTION OF THESE INSTRUCTIONS. SEE ALSO FURNACE RATING PLATE. THE FURNACE MAY BE USED FOR HEATING OF BUILD- INGS OR STRUCTURES UNDER CONSTRUCTION. INSTALLATION MUST COMPLY WITH ALL INSTALLATION INSTRUCTIONS INCLUDING: PROPER VENT INSTALLATION; - FURNACE OPERATING UNDER THERMOSTAT - CONTROL; RETURN AIR DUCT SEALED TO THE FURNACE; - AIR FILTERS IN PLACE; - SET FURNACE INPUT RATE AND TEMPERATURE - RISE PER RATING PLATE MARKINGS; MEANS FOR PROVIDING OUTDOOR AIR RE- - QUIRED FOR COMBUSTION; RETURN AIR TEMPERATURE MAINTAINED BE- - TWEEN 55°F (13°C) AND 80°F (27°C); AND CLEAN FURNACE, DUCT WORK AND COMPO- - NENTS UPON SUBSTANTIAL COMPLETION OF THE CONSTRUCTION PROCESS, AND VERIFY THAT THE FURNACE OPERATING CONDITIONS INCLUDING IGNITION, INPUT RATE, TEMPERA- TURE RISE AND VENTING, ACCORDING TO THE INSTRUCTIONS AND CODES. ! WARNING DUCT LEAKS CAN CREATE AN UNBALANCED SYSTEM AND DRAW POLLUTANTS SUCH AS DIRT, DUST, FUMES AND ODORS INTO THE HOME CAUSING PROPERTY DAMAGE. FUMES AND ODORS FROM TOXIC, VOLATILE OR FLAMMABLE CHEMICALS, AS WELL AS AUTOMO- BILE EXHAUST AND CARBON MONOXIDE (CO), CAN BE DRAWN INTO THE LIVING SPACE THROUGH LEAKING DUCTS AND UNBALANCED DUCT SYSTEMS CAUSING PERSONAL INJURY OR DEATH (SEE FIGURE 2). • IF AIR-MOVING EQUIPMENT OR DUCTWORK IS LO- CATED IN GARAGES OR OFF-GARAGE STORAGE AREAS - ALL JOINTS, SEAMS, AND OPENINGS IN THE EQUIPMENT AND DUCT MUST BE SEALED TO LIMIT THE MIGRATION OF TOXIC FUMES AND ODORS IN- CLUDING CARBON MONOXIDE FROM MIGRATING INTO THE LIVING SPACE. • IF AIR-MOVING EQUIPMENT OR DUCTWORK IS LO- CATED IN SPACES CONTAINING FUEL BURNING AP- PLIANCES SUCH AS WATER HEATERS OR BOILERS - ALL JOINTS, SEAMS, AND OPENINGS IN THE EQUIP- MENT AND DUCT MUST ALSO BE SEALED TO PRE- VENT DEPRESSURIZATION OF THE SPACE AND POSSIBLE MIGRATION OF COMBUSTION BYPROD- UCTS INCLUDING CARBON MONOXIDE INTO THE LIV- ING SPACE. FIGURE 2 MIGRATION OF DANGEROUS SUBSTANCES, FUMES, AND ODORS INTO LIVING SPACES Adapted from Residential Duct Diagnostics and Repair, with permission of Air Conditioning Contractors of America (ACCA).

IMPORTANT! THE COMMONWEALTH OF MASSACHU- SETTS REQUIRES COMPLIANCE WITH REGULATION 248 CMR 4.00 AND 5.00 FOR INSTALLATION OF THROUGH-THE-WALL VENTED GAS APPLIANCES AS FOLLOWS: (a) For all side wall horizontally vented gas fueled equip- ment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, includ- ing but not limited to decks and porches, the following re- quirements shall be satisfied: 1. INSTALLATION OF CARBON MONOXIDE DETEC- TORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide de- tector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall horizontal vented gas fueled equipment. It shall be the re- sponsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors. a. In the event that the side wall horizontally vented gas fu- eled equipment is installed in a crawl space or an attic, the hard wired carbon monoxide detector with alarm and bat- tery back-up may be installed on the next adjacent floor level. b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed. 2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified. 3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”. 4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the in- spector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1 through 4. (b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4: 1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA 54 as adopted by the Board; and 2. Product Approved side wall horizontally vented gas fu- eled equipment installed in a room or structure separate from the dwelling, building or structure used in whole or in part for residential purposes. (c) MANUFACTURER REQUIREMENTS – GAS EQUIP- MENT VENTING SYSTEM PROVIDED. When the manu- facturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or vent- ing system components with the equipment, the instruc- tions provided by the manufacturer for installation of the equipment and the venting system shall include: 1. Detailed instructions for the installation of the venting system design or the venting system components; and 2. A complete parts list for the venting system design or venting system. (d) MANUFACTURER REQUIREMENTS – GAS EQUIP- MENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies “special venting sys- tems”, the following requirements shall be satisfied by the manufacturer: 1. The referenced “special venting system” instructions shall be included with the appliance or equipment installa- tion instructions; and 2. The “special venting systems” shall be Product Ap- proved by the Board, and the instructions for that system shall include a parts list and detailed installation instruc- tions. (e) A copy of all installation instructions for all Product Ap- proved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting instruc- tions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation. Safety Information

or living area, be certain to install an auxiliary conden- sate drain pan under the entire unit. This auxiliary drain pan should extend under any evaporator coil installed with the furnace and the open portion of the conden- sate drain assembly. See “Condensate Drain/Neutral- izer” section for more details. 2. IMPORTANT: If using a cooling evaporator coil with this furnace, be sure the air passes over the heat ex- changer before passing over the cooling coil. The cooled air passing over the warm ambient air inside the heat exchanger tubes can cause condensation inside the tubes resulting in corrosion and eventual failure. If these are manual dampers, they must be equipped to prevent heating or cooling operation unless the damper is in the full heat or cool position. 3. IMPORTANT: When the furnace is installed, there must be 1/4” (minimum) to 1/2” (maximum) tilt at the back of the unit as shown in Figure 3. NOTE: These furnaces are approved for installation in at- tics, as well as alcoves, utility rooms, closets and crawl- spaces. Provisions must be made to prevent freezing of condensate. FREEZE PROTECTION For installations where the furnace may reach temperatures below 32°F (0°C) (such as an alcove or attic installation), the installer must take precautions to ensure that the drain trap and connected drain pipe do not freeze. Local codes and practices should be followed in order to prevent freez- ing. If the drain trap is installed within the furnace cabinet, no freeze protection is required. When the trap is mounted out- side or partially outside the cabinet, it must be protected from freezing. Regardless of the location of the drain trap, any exposed drain piping must be protected from freezing as required by local practices or codes. A UL or CSA listed heat tape or UL or CSA approved heating cable with a rat- ing of 3-6 watts per foot is acceptable protection when in- stalled and maintained in accordance with the manufacturer’s instructions. Good installation practices ne- cessitate that the installer verify heat tape operation in ac- cordance with the manufacturer’s instructions at the time of installation. IMPORTANT: Support this unit when installed. Since this furnace is suitable for attic or crawl space installation, it may be installed on combustible wood flooring or by using support brackets. FIGURE 3 1/4" MIN. TO 1/2" MAX. TILT TOWARD THE FRONT OF THE CABINET IN ALL INSTALLATIONS AND ORIENTATIONS 1/4" MIN. TO 1/2" MAX. TILT TOWARD THE FRONT OF THE CABINET IN ALL INSTALLATIONS AND ORIENTATIONS UPFLOW / DOWNFLOW HORIZONTAL (LEFT OR RIGHT) ST-A1194-13-X0 LOCATION REQUIREMENTS GENERAL INFORMATION Location ! WARNING WHEN THIS FURNACE IS INSTALLED IN A RESI- DENTIAL GARAGE, IT MUST BE INSTALLED SO THE BURNERS AND IGNITION SOURCE ARE LOCATED NO LESS THAN 18 INCHES [450MM] ABOVE THE FLOOR. THIS IS TO PREVENT THE RISK OF IGNIT- ING FLAMMABLE VAPORS WHICH MAY BE PRES- ENT IN A GARAGE. ALSO, THE FURNACE MUST BE LOCATED OR PROTECTED TO AVOID PHYSICAL DAMAGE BY VEHICLES. FAILURE TO FOLLOW THESE WARNINGS CAN CAUSE A FIRE OR EXPLO- SION, RESULTING IN PROPERTY DAMAGE, PER- SONAL INJURY OR DEATH. LEVEL TO 1/2” MAX. TILT TOWARD THE FRONT OF THE CABINET IN ALL INSTALLATIONS AND ORIENTATIONS LEVEL TO 1/2” MAX. TILT TOWARD THE FRONT OF THE CABINET IN ALL INSTALLATIONS AND ORIENTATIONS

posed, or existing, duct system. 2. Give consideration to the vent system piping when se- lecting the furnace location. Be sure the venting system can get from the furnace to the termination with minimal length and elbows. 3. Locate the furnace near the existing gas piping. Or, if running a new gas line, locate the furnace to minimize the length and elbows in the gas piping. See Figure 5. 4. Locate the furnace to maintain proper clearance to combustibles as shown in following Figure 6. CLEARANCE – ACCESSIBILITY The design of forced air furnaces with input ratings as listed in the tables under Figure 6 are certified by CSA-In- ternational for the clearances to combustible materials shown in inches. See name/rating plate and clearance label for specific model number and clearance information. Service clearance of at least 24 inches (30 cm) is recom- mended in front of all furnaces. NOTE: Use recommended 24” (30 cm) clearance if accessi- bility clearances are greater than fire protection clearances. For downflow non-zero clearance furnace installations, the minimum clearance required on the right side of the fur- nace is shown in Figure 4. If this clearance cannot be maintained, a downflow zero-clearance kit; RXGY-ZK will need to be installed. GENERAL INFORMATION (cont.) FIGURE 5 AIR FLOW NOTE: HORIZONTAL LEFT ORIENTATION DEPICTED IN ILLUSTRATION. HORIZONTAL RIGHT ORIENTATION IS SIMILAR IN INSTALLATION. ST-A1194-05-X0 FIGURE 4 OPTION - B 2” - 3” PIPE OPTION - A 2” PIPE 8” 6” ST-A1194-40-X0 CLEARANCE FLUE VENT TO WALL ! WARNING THIS FURNACE IS NOT APPROVED OR RECOM- MENDED FOR INSTALLATION ON ITS BACK, WITH ACCESS DOORS FACING UPWARDS. ! WARNING DO NOT LIFT THE UNIT BY THE HEAT EXCHANGER TUBES. DOING SO CAN DAMAGE THE HEAT EX- CHANGER ASSEMBLY. ! WARNING COMBUSTIBLE MATERIAL MUST NOT BE PLACED ON OR AGAINST THE FURNACE JACKET. THE AREA AROUND THE FURNACE MUST BE KEPT CLEAR AND FREE OF ALL COMBUSTIBLE MATERI- ALS INCLUDING GASOLINE AND OTHER FLAMMA- BLE VAPORS AND LIQUIDS. PLACEMENT OF COMBUSTIBLE MATERIALS ON, AGAINST OR AROUND THE FURNACE JACKET CAN CAUSE AN EXPLOSION OR FIRE RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. THE HOMEOWNER SHOULD BE CAUTIONED THAT THE FURNACE AREA MUST NOT BE USED AS A BROOM CLOSET OR FOR ANY OTHER STORAGE PURPOSES. ! WARNING UPFLOW FURNACES ARE DESIGN- CERTIFIED FOR INSTALLATION ON COMBUSTIBLE FLOORS. NOTE, HOWEVER, THAT FURNACES MUST NOT BE IN- STALLED DIRECTLY ON CARPETING, TILE OR OTHER COMBUSTIBLE MATERIAL OTHER THAN WOOD FLOORING. INSTALLATION ON A COM- BUSTIBLE MATERIAL CAN RESULT IN FIRE, CAUS- ING PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. LOCATION REQUIREMENTS 6” 8” NOTE: These dimensions refer to furnace clearance only. For required vent clearances and supports, refer to vent manufacturer’s instructions.

TOP BOTTOM FRONT LEFT SIDE RIGHT SIDE RIGHT BACK TOP FRONT VENT (-)95PA-040 (-)95PA-060 (-)95PA-070 (-)95PA-085 (-)95PA-100 (-)95PA-115 0 0 0 1 2 0 0 0 0 1 2 0 0 0 0 1 2 0 0 0 0 1 2 0 0 0 0 1 2 0 0 0 0 1 2 0 SHIPPING WEIGHTS MINIMUM CLEARANCE (IN.) MODEL LEFT SIDE UNIT DIMENSIONS (CLEARANCE TO COMBUSTIBLES) A I R F L O W A B .62 .62 34.00 23.33 25.44 26.19 22.63 25.81 26.31 8.00 11.03 17.50 18.13 26.11 29.05 32.65 24.19 22.31 OPTIONAL TRAP LOCATION (HORIZONTAL) OPTIONAL CONDENSATE DRAIN (DOWNFLOW) GAS CONNECTION OPTIONAL COMBUSTION VENT LOCATION OPTIONAL TRAP LOCATION (HORIZONTAL) OPTIONAL VENT AIR INLET CONDENSATE DRAIN (UPFLOW) ELECTRICAL CONNECTION LINE VOLTAGE ELECTRICAL CONNECTION LOW VOLTAGE 22.96 23.80 8.00 11.00 17.44 29.05 26.17 32.88 23.00 14.00 28.06 1.12 29.62 .62 19.83 OPTIONAL LINE VOLTAGE WIRING OPTIONAL LOW VOLTAGE WIRING OPTIONAL CONDENSATE DRAIN (UPFLOW) TRAP LOCATION (HORIZONTAL) OPTIONAL GAS CONNECTION OPTIONAL CONDENSATE DRAIN (DOWNFLOW) 1.76 1.66 24.86 26.26 B 19.83 SUPPLY AIR 23.21 1.62 1.67 24.91 .30 C 19.77 A .65 RETURN AIR OPTIONAL VENT OUTLET KNOCKOUT OPTIONAL COMBUSTION AIR INLET KNOCKOUT SUPPLY AND RRETURN DEPICTED AS UUPFLOW CONFIGURATION. FLANGE CONFIGURATION W WILL VVARY DDEPENDING OON INSTALLATION OORIENTATION. A B C 17 1/2 16 17/64 16 13/64 21 19 49/64 19 45/64 24 1/2 23 17/64 23 13/64 FLANGE DIMENSIONS 125 *A SERVICE CLEARANCE OF AT LEAST 24” IS RECOMMENDED IN FRONT OF ALL FURNACES ST-A1194-01-X0 Location

BULKHEAD COUPLING CONDENSATE DRAINAGE HAS OPTIONS FOR 3/4" OR 1/2" PVC CONNECTIONS. THE BULKHEAD COUPLING CONNECTS THE RUBBER HOSES FROM INSIDE THE UNIT TO THE PVC PIPE EXTERIOR OF THE UNIT. PVC PIPE CAN BE CEMENTED DIRECTLY TO THE COUPLING AND THE TRAP WITH PROPER PVC CEMENT AND PRIMER. 1/2" PVC PIPE 3/4" PVC TEE RUBBER HOSE CONNECTION PVC FITTING/PIPE 3/4" PVC COUPLING IN ADDITION TO PVC CONNECTIONS, THE CONDENSATE TRAP CAN ACCOMODATE A 5/8" RUBBER HOSE WITH A HOSE CLAMP WHEN LOCATED INSIDE THE UNIT. NOTE: IMPROPER HOSE CONNECTIONS WILL PREVENT CONDENSATE FROM DRAINING AND MAY DAMAGE FURNACE. CONDENSATE TRAP THE CONDENSATE TRAP HAS 2 SIDES PLEASE NOTE THEIR LOCATIONS FOR DRAIN CONNECTIONS DURING CONVERSION. OUT TO DRAIN COLLECTOR BOX IN FROM IN FROM FLUE ELBOW OR COUPLING 1/4" VENT IN FROM COLLECTOR BOX GENERAL CONVERSION INSTRUCTIONS ST-A1194-37-X0 -20 10° CONVERSION AND INSTALLATION CONSIDERATIONS ALL CONVERSIONS REQUIRE THE CONDENSATE PLUMBING TO HAVE DECLINE IN THE DIRECTION OF THE WATER FLOW. WHEN INSTALLING AND MOVING CONDENSATE PLUMBING THE HOSES SHOULD BE FREE OF KINKS FOR PROPER WATER FLOW. WHEN DRAIN HOSE OR CONDENSATE TRAP HOSE ROUTING CHANGES ARE NECESSARY BE SURE TO PLUG OR CAP ANY UNUSED HOSE TAPS. THE INDUCER COUPLING COMES FROM THE FACTORY WITH A 10 TILT FOR UP FLOW INSTALLATIONS. WHEN CONVERTED TO DOWN FLOW THE COUPLING REQUIRES A ROTATION A MINIMUM OF 10 FROM HORIZONTAL AS SHOWN. HORIZONTAL INSTALLATIONS REQUIRE CONDENSATE TRAP TO BE MOUNTED EXTERNALLY BELOW THE UNIT: -USE CAUTION: MOUNT THE TRAP AFTER THE UNIT IS AT THE POINT OF INSTALLATION TO PREVENT DAMAGE TO THE TRAP DURING TRANSPORT. -HAND TIGHTEN SCREWS WHEN MOUNTING THE TRAP OR THE BULKHEAD COUPLING TO THE CABINET TO PREVENT DAMAGE TO THE MOUNTING FLANGE. -USE PROPER FREEZE PROTECTION IF REQUIRED. -ALLOW MINIMUM OF 6" BELOW THE FURNACE FOR CLEARANCE. 10-20° TILT ON INDUCER COUPLING GROUND GROUND LEVEL MIDLINE WORM DRIVE CLAMP COUPLING THE WORM DRIVE FOR THE HOSE CLAMPS USED ON THE FLUE TRANSITION COUPLING OR THE IDB COUPLING MUST BE ABOVE THE LEVEL MIDLINE WHEN IN THE HORIZONTAL POSITION AS DETAILED HERE. IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. NOTE: HORIZONTAL INSTALLATIONS REQUIRE CONDENSATE TRAP TO BE MOUNTED EXTERNALLY BELOW THE UNIT:

CONVERSION KIT RXGY-CK CONVERSION KIT RXGY-ZK (X2) 2-5/8" FLUSH MOUNT PLUG 1/2" DRAIN HOSE E INTAKE COUPLING .559" CONDENSATE TRAP DRAIN PLUG #8 X 1/2" SCREW (X2) INTAKE PIPE 1/4" BLACK VENT TUBE BULKHEAD COUPLING ALTERNATE DRAIN ASSEMBLY TUBE C HOSE CLAMP INTAKE AIR DIFFUSER #8 X 1/2" SCREW (X4) #8 X 1/2" SCREW (X10) 5/8" DRAIN HOSE B CONDENSATE TRAP BRACKET (DOWN FLOW) 2" PVC VANE 1/4" HOLE PLUG 1/2" DRAIN HOSE F 1/2" DRAIN HOSE G CONDENSATE TRAP GASKET 2" PIPE GROMMET ( 3.375) 1/2" VINYL CAP (YELLOW) PIPE COLLAR GASKET ASSEMBLY (X2) ST-A1194-38-01 GENERAL PARTS REQUIRED FOR CONVERSIONS (X2) FLUE PIPE ASSEMBLY W/ O-RING O-RING SEE NEXT PAGE FOR APPLICABLE CONFIGURATIONS

GENERAL CONVERSION INSTRUCTIONS AND TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 13 UPFLOW WITH VERTICAL VENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 15-16 UPFLOW WITH LEFT SIDE VENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 17-18 DOWNFLOW WITH RIGHT VENT (NON-ZERO CLEARANCE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 19-22 DOWNFLOW ZERO-CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 23-27 HORIZONTAL RIGHT WITH RIGHT VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 28-30 HORIZONTAL RIGHT WITH VERTICAL VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 31-33 HORIZONTAL LEFT WITH RIGHT VENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 34-38 HORIZONTAL LEFT WITH LEFT VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 39-41 FIELD CONVERSION TO VARIOUS CONFIGURATIONS Furnaces can be converted in the field from upflow (as-shipped) to downflow, horizontal left or horizontal right as necessary. In addition, there are different venting options, including a zero-clearance option, to give the installer flexibility in locating the venting for this furnace. AIRFLOW AIRFLOW AIRFLOW AIRFLOW (REQUIRES CONVERSION KIT RXGY-CK) (REQUIRES CONVERSION KIT RXGY-CK) (REQUIRES CONVERSION KIT RXGY-CK AND ZERO- CLEARANCE KIT RXGY-ZK) (REQUIRES CONVERSION KIT RXGY-CK) (REQUIRES CONVERSION KIT RXGY-CK) (REQUIRES CONVERSION KIT RXGY-CK AND ZERO- CLEARANCE KIT RXGY-ZK) (REQUIRES CONVERSION KIT RXGY-CK) AIRFLOW AIRFLOW AIRFLOW AIRFLOW

CABINET WIDTH 4b2 4b3 4b1 NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 4B 4b - RIGHT SIDE DRAIN OPTION 4b1 - CUT TUBE C TO FIT CORRESPONDING CABINET WIDTH. 4b2 - INSTALL TUBE C WITH HOSE CLAMP AS SHOWN TO HOSE A (PRE-INSTALLED). 4b3 - ATTACH TUBE C ASSEMBLY TO BULKHEAD COUPLING AS SHOWN. 4b4 - INSTALL HOSE CLAMP OVER HOSE ON BULKHEAD COUPLING. HOSE A TUBE C NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 4A HOSE A 4a - LEFT SIDE DRAIN OPTION ATTACH HOSE A (PRE-INSTALLED) TO BULKHEAD COUPLING. INSTALL HOSE CLAMP ON HOSE OVER BULK HEAD COUPLING. 3 INSTALL BULKHEAD COUPLING USING (2) SCREWS. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. INSTALL 2 OPTION DRAIN RIGHT DETERMINE RIGHT OR LEFT DRAIN OPTION. LOCATE 7/8" HOLE IN JACKET SIDE. REMOVE PLUG - DISCARD. DRILL (2) Ø 1/8" HOLES FOR THE BULKHEAD COUPLING. DRILL 1/8” DRILL 1/8” 7/8” PLUG DISCARD OPTION DRAIN LEFT 7/8” PLUG DISCARD 1 INSTALL INTAKE COUPLING IN TOP PLATE. INSTALL UPFLOW VERTICAL VENT NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE ST-A1194-28-X0 PARTS NEEDED: PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG ONLY. NO OTHER CONVERSION KITS ARE NEEDED. ! TUBE C BULKHEAD COUPLING FROM PARTS BAG (PROVIDED WITH UNIT) (X2) #8 X 1/2" SCREW HOSE CLAMP INTAKE COUPLING W/ NUT ELECTRIC DRILL 1/8" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER TUBE CUTTER TOOLS/MATERIALS NEEDED: " * 3 ' - 0 8 (X2) (X2) 4b4

__ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED) __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED

PLIERS FLAT HEAD SCREWDRIVER 5/16 HEX HEAD DRIVER 1/4" HEX HEAD DRIVER TUBING CUTTER TOOLS/MATERIALS NEEDED: UPFLOW LEFT VENT NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE ST-A1194-29-01 PARTS NEEDED: (X2) FROM PARTS BAG (PROVIDED W/UNIT) INTAKE COUPLING W/ NUT BULKHEAD COUPLING #8 X 1/2" SCREW TUBE C HOSE CLAMP 4 INSTALL BULKHEAD COUPLING USING (2) SCREWS. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. 3 DETERMINE RIGHT OR LEFT DRAIN OPTION. LOCATE 7/8" HOLE IN JACKET SIDE. REMOVE PLUG - DISCARD. DRILL (2) ø1/8" HOLES FOR THE BULKHEAD COUPLING. DRILL 1/8” DISCARD OPTION DRAIN RIGHT DRILL 1/8” DISCARD OPTION DRAIN LEFT 2 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG IN TOP PLATE. 2b - INSTALL 2" PIPE GROMMET AS SHOWN. 2c - INSTALL INTAKE COUPLING AS SHOWN. 2b 2c 2a 2-5/8” 1a 1b 1c 1 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE INDUCER COUPLING W/ELBOW FOR EASIER REMOVAL). 1b - REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET - DISCARD. 1c - RELOCATE 2-3/8" FLUSH MOUNT PLUG FROM JACKET TO TOP PLATE. RE-LOCATE DISCARD IDB COUPLING (RETAIN) FLUE TRANSITION (DISCARD) TRANSITION COUPLING (DISCARD) ELBOW (DISCARD) FROM CONVERSION KIT RXGY-CK 2-3/8" PIPE GROMMET 2-5/8" FLUSH MOUNT PLUG PARTS NEEDED FOR THIS CONVERSION REQUIRE THE OUTLINED ITEMS FROM THE PARTS BAG AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THESE PARTS BEFORE PROCEEDING. ! " * 3 ' - 0 8 IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. NOTE: (X2) SEE CRITICAL HOSE CLAMP LOCATION NOTE IN THE GENERAL COVERSION INSTRUCTIONS.

5b1 - CUT TUBE C TO FIT CORRESPONDING CABINET WIDTH. 5b2 - INSTALL TUBE C WITH HOSE CLAMP AS SHOWN TO HOSE A (PRE-INSTALLED). 5b3 - ATTACH TUBE C ASSEMBLY TO BULKHEAD COUPLING AS SHOWN. 5b4 - INSTALL HOSE CLAMP OVER HOSE ON BULKHEAD COUPLING. HOSE A TUBE C TUBE C CUT TO FIT CABINET WIDTH 5b2 5b3 5b1 NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 5A HOSE A 5a - LEFT SIDE DRAIN OPTION ATTACH HOSE A (PRE-INSTALLED) TO BULKHEAD COUPLING. PLACE CLAMP OVER HOSE ON BULKHEAD COUPLING. NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY Checklist: ST-A1194-29-01 Notes: __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION. __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ ALL DRAIN PORTS ARE PLUGGED __ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED)

DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) PARTS NEEDED: (X2) FROM PARTS BAG (PROVIDED WITH UNIT) 3 * " 8 0 - ' (X2) FROM THE YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. ! PARTS NEEDED: FROM PARTS BAG (PROVIDED WITH UNIT) FROM THE PARTS BAG AND CONVERSION KIT YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE FROM CONVERSION KIT RXGY-CK 2-5/8" FLUSH 2" PIPE GROMMET #8 X 1/2" SCREW HOSE CLAMP FROM CONVERSION KIT RXGY-CK 2-5/8" FLUSH #8 X 1/2" SCREW (X4) ALTERNATE DRAIN ASSEMBLY TUBE C CONDENSATE TRAP DRAIN PLUG .559” COUPLING ALTERNATE DRAIN ASSEMBLY INTAKE AIR DIFFUSER CONDENSATE TRAP BRACKET INTAKE COUPLING W/ NUT BULKHEAD COUPLING 1/4" BLACK CONDENSATE TRAP BRACKET NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE ELECTRIC DRILL (1) 1/8" DRILL BIT TOOLS/MATERIALS NEEDED: 2-5/8" FLUSH MOUNT PLUG ( 3.375) NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE (1) 3/16" DRILL BIT PLIERS TOOLS/MATERIALS NEEDED: 2-5/8" FLUSH MOUNT PLUG NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE (1) 1/4" HEX HEAD DRIVER (1) 5/16 HEX HEAD DRIVER TOOLS/MATERIALS NEEDED: 5/8" DRAIN HOSE B NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLAT HEAD SCREWDRIVER TUBE CUTTER TRAP BRACKET (DOWN FLOW) 1/2" DRAIN HOSE E NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLAT HEAD SCREWDRIVER 1/4" BLACK VENT TUBE TRAP BRACKET (DOWN FLOW) 1 1a TRANSITION COUPLING (DISCARD) FLUE TRANSITION (DISCARD) ELBOW (DISCARD) IDB COUPLING (RETAIN) 2 2-5/8" TRANSITION COUPLING (DISCARD) FLUE TRANSITION (DISCARD) ELBOW (DISCARD) IDB COUPLING (RETAIN) 2d 2-5/8" INSTALL 1b VENT HOSE (DISCARD) HOSE “D” (RETAIN) DISCARD 2a VENT HOSE (DISCARD) HOSE “D” (RETAIN) IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIREC- NOTE: M O V M V E O E V 2c IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIREC- MOVE 2b 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL) 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE:TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL) 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE:TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 2a-REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET - DISCARD. 2b-RELOCATE 2-3/8" FLUSH MOUNT PLUG FROM JACKET TO TOP PLATE. 2c-RELOCATE 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING. 2d-INSTALL 2-5/8" FLUSH PLUG IN TOP PLATE. 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL). 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE:TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). TION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. 2a-REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET - DISCARD. 2b-RELOCATE 2-3/8" FLUSH MOUNT PLUG FROM JACKET TO TOP PLATE. 2c-RELOCATE 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING. 2d-INSTALL 2-5/8" FLUSH PLUG IN TOP PLATE. TION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT ST-A1194-30-X0 2a-REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET - DISCARD. 2b-RELOCATE 2-3/8" FLUSH MOUNT PLUG FROM JACKET TO TOP PLATE. 2c-RELOCATE 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING.

5b - ROTATE UNIT 180° DRILL (2) Ø3/16" HOLES 5 .559 DRAIN PLUG 4c 4a 4b DISCARD 4a - REMOVE THE SMALL MOUNTING BRACKET AND THE .403" DRAIN PLUG - DISCARD. 4b - INSTALL THE DOWN FLOW CONDENSATE TRAP BRACKET WITH (2) SCREWS AS SHOWN. 4c - INSTALL .559" DRAIN PLUG IN THE CONDENSATE TRAP. 4 3d 3c 3a 3b 3a - RELOCATE .403" DRAIN PLUG IN THE COLLECTOR BOX. 3b - INSTALL 2" PIPE GROMMET 3c - INTAKE COUPLING IN JACKET AS SHOWN. 3d - INSERT AIR DIFFUSER INTO COUPLING UNTIL TABS ARE SEATED. 3 INSERT AIR DIFFUSER UNTIL TABS ARE FULLY SEATED INSTALL M O VE NOTE: DIFFUSER MAY HAVE A TENDENCEY TO FALL OUT OF THE COUPLING AT THIS STEP. THE INSTALLER MAY ELECT TO INSTALL THE DIFFUSER AFTER ROTATING THE FURNACE TO THE HORIZONTAL POSITION.

ATTACH HOSE A (FACTORY INSTALLED) TO BULKHEAD COUPLING. INSTALL CLAMP OVER HOSE ON BULKHEAD COUPLING. OPTION 9b DRAIN RIGHT SIDE HOSE A NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 9a - LEFT SIDE DRAIN OPTION 9a -1- REMOVE HOSE A (FACTORY INSTALLED ON CONDENSATE TRAP) & REPLACE WITH HOSE B REUSING SUPPLIED CLAMP. 9a -2- CUT TUBE C ON MARKED LINES CORRESPONDING TO CABINET WIDTH. 9a- 3- ROTATE RUBBER HOSE ON TUBE C SO THAT SIDE "1" CONNECTS TO PVC & SIDE "2" TO BULKHEAD COUPLING. INSTALL CLAMP OVER HOSE ON BULKHEAD COUPLING. 9a- 4- INSTALL TUBE C USING HOSE CLAMP. ATTACH SIDE "2" TO BULKHEAD COUPLING OPTION DRAIN LEFT SIDE 9a TUBE C CUT TO FIT CABINET WIDTH 9a-3 9a-2 SWAP ENDS 9a-1 1 2 TUBE C HOSE B 9a-4 NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 8 INSTALL BULKHEAD COUPLING USING (2) SCREWS. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. INSTALL 1/8" DRILL DISCARD 7/8" PLUG 1/8" DRILL DISCARD 7/8" PLUG DETERMINE RIGHT OR LEFT DRAIN OPTION. LOCATE 7/8" HOLE IN JACKET SIDE AND REMOVE PLUG - DISCARD. DRILL (2) 1/8" HOLES FOR BULKHEAD COUPLING. OPTION: RIGHT DRAIN OPTION: LEFT DRAIN 7 6b 6e 6d 6c 6 HOSE E HOSE D 6b - INSTALL CONDENSATE TRAP BY MOUNTING BRACKET TO JACKET USING (2) SCREWS 6c - CUT 1/4” VENT TUBE TO FIT (APPROX. 10-1/2"). INSTALL AS SHOWN. 6d - INSTALL HOSE D (REMOVED IN STEP 1) FROM INDUCER COUPLING TO THE FLUE TAP IN THE CONDENSATE TRAP. 6e - INSTALL HOSE E FROM COLLECTOR BOX TO TOP OF CONDENSATE TRAP. -20 10° APPROXIMATELY 10-20° TILT ON INDUCER COUPLING GROUND ROTATE INDUCER COUPLING TO ENSURE DOWNWARD FLOW OF CONDENSATE FROM FLUE VENTING 6a NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 1/4” TUBE CUT TO FIT (APPROX 10-1/2”) ST-A1194-30-X0 NOTE: REMAINING STEPS SHOWN WITH FURNACE IN DOWN FLOW ORIENTATION SEE CRITICAL HOSE CLAMP LOCATION NOTE IN THE GENERAL COVERSION INSTRUCTIONS.

__ ALL DRAIN PORTS ARE PLUGGED __ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED) __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ DOUBLE CHECK DIFFUSER IS INSTALLED IN INTAKE COUPLING

DOWN FLOW ZERO CLEARANCE PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG ! DOWN FLOW ZERO CLEARANCE PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS BAG, CONVERSION KIT RXGY-CK DOWN FLOW ZERO CLEARANCE PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS AND RXGY-ZK FROM PARTS BAG(PROVIDED W/UNIT) COUPLING 3 * " 8 0 - ' PARTS NEEDED: FROM PARTS BAG(PROVIDED W/UNIT) INTAKE COUPLING W/ NUT BULKHEAD COUPLING PARTS NEEDED: FROM PARTS BAG(PROVIDED W/UNIT) #8 X 1/2" SCREW (X2) HOSE CLAMP PARTS NEEDED: FROM THE PARTS BAG YOU MUST HAVE THE OUTLINED PARTS FROM THESE KITS BEFORE PROCEEDING. ! (X2) ALTERNATE DRAIN ASSEMBLY TUBE C PARTS BAG, CONVERSION KIT RXGY-CK YOU MUST HAVE THE OUTLINED PARTS FROM THESE KITS BEFORE PROCEEDING. ALTERNATE DRAIN ASSEMBLY INTAKE AIR DIFFUSER AND RXGY-ZK. YOU MUST HAVE THE OUTLINED PARTS FROM THESE KITS BEFORE PROCEEDING. FROM CONVERSION KIT RXGY-CK 2-5/8" FLUSH MOUNT PLUG #8 X 1/2" SCREW (X4) FROM ZERO-CLEARANCE CONVERSION KIT RXGY-ZK FROM CONVERSION KIT RXGY-CK 1/4" BLACK VENT TUBING #8 X 1/2" SCREW FROM ZERO-CLEARANCE CONVERSION KIT RXGY-ZK .559" CONDENSATE TRAP DRAIN PLUG 5/8" DRAIN HOSE B 1/2" DRAIN HOSE E .559" CONDENSATE TRAP DRAIN PLUG CONDENSATE TRAP BRACKET (DOWN FLOW) O-RING #8 X 1/2" SCREW (X10) ELECTRIC DRILL TOOLS/MATERIALS NEEDED: PIPE COLLAR/GASKET ASSEMBLY (X2) TOOLS/MATERIALS NEEDED: 3/16" DRILL BIT INTAKE PIPE TOOLS/MATERIALS NEEDED: TUBING CUTTER 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER INTAKE FLUE PIPE ASSEMBLY PVC GLUE AND PRIMER HAMMER 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER W/ O-RING FLUE PIPE ASSEMBLY PVC GLUE AND PRIMER W/ O-RING O-RING 1/8" DRILL BIT 1 NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE PLIERS TRANSITION COUPLING (RETAIN) FLUE TRANSITION (DISCARD) ELBOW “RETAIN” NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 5/16 HEX HEAD DRIVER TRANSITION COUPLING (RETAIN) FLUE TRANSITION (DISCARD) ELBOW “RETAIN” 2 2a NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLAT HEAD SCREWDRIVER 5/16 HEX HEAD DRIVER 2-5/8" 2a INSTALL NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLAT HEAD SCREWDRIVER M O V E 2c NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1a 1b IDB COUPLING (RETAIN) VENT HOSE (RETAIN) HOSE “D” (RETAIN) IDB COUPLING (RETAIN) VENT HOSE (RETAIN) HOSE “D” (RETAIN) M O V E V 2d 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. (RETAIN ELBOW AND COUPLINGS FOR LATER USE.) (NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL). 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. (RETAIN ELBOW AND COUPLINGS FOR LATER USE.) (NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE .403" DRAIN PLUG IN THE COLLECTOR BOX. 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE .403" DRAIN PLUG IN THE COLLECTOR BOX. DISCARD 2b 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO 2d - RELOCATE .403" DRAIN PLUG IN THE COLLECTOR BOX. ST-A1194-31-02

REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS NOTE: IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS NOTE: INSTALL 4a M O V E V 4b ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIREC- TION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIREC- TION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. 5 INSTALL HOSE E ON COLLECTOR BOX AS SHOWN. LET THE OPEN END HANG FREE UNTIL STEP 11. NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY RELOCATE JUNCTION BOX AND DOOR SWITCH SEE ELECTRICAL WIRING SECTION REMOVE KNOCKOUTS INSTALL HOSE E ON COLLECTOR BOX AS SHOWN. LET THE OPEN END HANG FREE UNTIL STEP 11. USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY RELOCATE JUNCTION BOX AND DOOR SWITCH SEE ELECTRICAL WIRING SECTION REMOVE KNOCKOUTS 5b 4a - RE-INSTALL ELBOW AND COUPLINGS (REMOVED IN STEP 1) IN THE ORIENTATION AS SHOWN. 4b - RELOCATE 1/2" VINYL CAP (YELLOW) ON INDUCER COUPLING TO OPPOSITE SIDE. NOTE: LEAVE COUPLING CLAMP CONNECTIONS LOOSE UNTIL STEP 11. USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY RELOCATE JUNCTION BOX AND DOOR SWITCH 4a - RE-INSTALL ELBOW AND COUPLINGS (REMOVED IN STEP 1) IN THE ORIENTATION AS SHOWN. 4b - RELOCATE 1/2" VINYL CAP (YELLOW) ON INDUCER COUPLING TO NOTE: LEAVE COUPLING CLAMP CONNECTIONS LOOSE UNTIL STEP 11. 4a - RE-INSTALL ELBOW AND COUPLINGS (REMOVED IN STEP 1) IN THE 4b - RELOCATE 1/2" VINYL CAP (YELLOW) ON INDUCER COUPLING TO NOTE: LEAVE COUPLING CLAMP CONNECTIONS LOOSE UNTIL STEP 11. ROTATE UNIT 5a SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS 5c SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS 5c DRILL (2) 1/8" HOLES IN BLOWER SHELF 5d 6 5a - ROTATE UNIT 180° 5b - REMOVE KNOCKOUTS WITH HAMMER AND FLAT HEAD SCREWDRIVER. 5c - THE JUNCTION BOX WILL HAVE TO BE RELOCATED FOR FLUE PIPE INSTALLATION. SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS. 5d - RE-DRILL (2) Ø1/8" HOLES IN BLOWER SHELF AS SHOWN FOR FLUE PIPE ASSEMBLY. 5e - PRE-DRILL (2) Ø3/16" HOLES IN JACKET AS SHOWN FOR CONDENSATE TRAP BRACKET. 5b - REMOVE KNOCKOUTS WITH HAMMER AND FLAT HEAD SCREWDRIVER. 5c - THE JUNCTION BOX WILL HAVE TO BE RELOCATED FOR FLUE PIPE INSTALLATION. SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS. 5d - RE-DRILL (2) Ø1/8" HOLES IN BLOWER SHELF AS SHOWN FOR FLUE PIPE ASSEMBLY. 5e - PRE-DRILL (2) Ø3/16" HOLES IN JACKET AS SHOWN FOR CONDENSATE TRAP BRACKET. 7 7b 5b - REMOVE KNOCKOUTS WITH HAMMER AND FLAT HEAD SCREWDRIVER. 5c - THE JUNCTION BOX WILL HAVE TO BE RELOCATED FOR FLUE PIPE INSTALLATION. 5d - RE-DRILL (2) Ø1/8" HOLES IN BLOWER SHELF AS SHOWN FOR FLUE PIPE ASSEMBLY. 5e - PRE-DRILL (2) Ø3/16" HOLES IN JACKET AS SHOWN FOR CONDENSATE TRAP BRACKET. DRILL (2) 3/16" HOLES 5e DIFFUSER FULLY SEATED .559 DRAIN PLUG (X2) .559 DRAIN PLUG 7a 7c DISCARD 7c FULLY SEATED INSTALL INTAKE COUPLING IN BLOWER SHELF HOLE AS SHOWN. INSERT AIR DIFFUSER INTO COUPLING UNTIL TABS ARE SEATED. INSTALL INTAKE COUPLING IN BLOWER INSERT AIR DIFFUSER INTO COUPLING 7a - REMOVE THE SMALL MOUNTING BRACKET AND THE .403" DRAIN PLUG - DISCARD. 7b - INSTALL .559" DRAIN PLUG IN CONDENSATE TRAP. 7c - INSTALL DOWN FLOW CONDENSATE TRAP BRACKET WITH (2) SCREWS AS SHOWN. 7a - REMOVE THE SMALL MOUNTING BRACKET AND THE .403" DRAIN PLUG - DISCARD. 7b - INSTALL .559" DRAIN PLUG IN CONDENSATE TRAP. 7c - INSTALL DOWN FLOW CONDENSATE TRAP BRACKET WITH (2) SCREWS AS SHOWN. 7a - REMOVE THE SMALL MOUNTING BRACKET AND THE .403" DRAIN PLUG - DISCARD. 7c - INSTALL DOWN FLOW CONDENSATE TRAP BRACKET WITH (2) SCREWS AS SHOWN. ST-A1194-31-02

LOCATE 7/8" HOLE IN JACKET SIDE REMOVE PLUG - DISCARD. DRILL (2) 1/8" HOLES FOR THE BULKHEAD COUPLING. LEFT DRAIN OPTION 7/8" PLUG DETERMINE RIGHT OR LEFT DRAIN OPTION. LOCATE 7/8" HOLE IN JACKET SIDE REMOVE PLUG - DISCARD. 1/8" HOLES FOR THE BULKHEAD COUPLING. LEFT DRAIN OPTION RIGHT DRAIN OPTION RIGHT DRAIN OPTION INSTALL BULKHEAD COUPLING USING (2) SCREWS. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. INSTALL BULKHEAD COUPLING USING (2) SCREWS. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. INSTALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE. 10 COVER PLATE “BOTTOM 10a ATE “BOTTOM” PRE-DRILL 1/8" HOLES AND ATTACH W/SCREWS (2) PLACES X10 O-RING PVC GLUE JOINT PVC GLUE JOINT 10b INSTALL SCREWS 10c 10a - INSTALL INTAKE PIPE SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN 10b - INSTALL FLUE PIPE ASSEMBLY INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT ON COVER PLATE (NOTE: SLIDE FROM UNDER PLATE). SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 10c - SLIDE PIPE COLLAR ASSEMBLIES FROM STEP 7 OVER THE (2) PIPES AND DRILL (8) PVC GLUE JOINT SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN 10b - INSTALL FLUE PIPE ASSEMBLY INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT ON COVER PLATE (NOTE: SLIDE FROM UNDER PLATE). SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 10c - SLIDE PIPE COLLAR ASSEMBLIES FROM STEP 7 OVER THE (2) PIPES AND DRILL (8) PVC GLUE JOINT SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT ON COVER PLATE (NOTE: SLIDE FROM UNDER PLATE). SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 10c - SLIDE PIPE COLLAR ASSEMBLIES FROM STEP 7 OVER THE (2) PIPES AND DRILL (8) SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT ON COVER PLATE (NOTE: SLIDE FROM UNDER PLATE). SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN ST-A1194-31-02

__ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION. __ ALL DRAIN PORTS ARE PLUGGED. __ UNIT HAS FORWARD PITCH. __ HEAT TAPE INSTALLED(IF REQUIRED). __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED

FROM THE PARTS BAG AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THE PARTS OULINED BELOW BEFORE PROCEEDING. ! NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE HORIZONTAL RIGHT / RIGHT VENT ST-A1194-32-01 2 2a - RELOCATE 1/2" VINYL CAP (YELLOW) ON THE INDUCER COUPLING 2b - RELOCATE THE .403" DRAIN PLUG IN THE COLLECTOR BOX. 2c - RELOCATE 1/4" VINYL CAP (YELLOW) ON COLLECTOR BOX VENT TAP. 2a 2b 2c MOVE MOVE MOVE 1 1a - REMOVE TRAP AND HOSES (NOTE: TO REMOVE TRAP, REMOVE (2) SCREWS AND PULL STRAIGHT OUT) 1b - INSTALL INTAKE COUPLING IN TOP PLATE AS SHOWN. 1a 1b HOSE “D” (DISCARD) VENT HOSE (DISCARD) ELECTRIC DRILL 1/8" DRILL BIT PLIERS FLAT HEAD SCREWDRIVER 5/16 HEX HEAD DRIVER 1/4" HEX HEAD DRIVER TOOLS/MATERIALS NEEDED: CONDENSATE TRAP GASKET #8 X 1/2" SCREW (X3) 1/4" BLACK VENT TUBE 1/2" DRAIN HOSE E 1/2" DRAIN HOSE F FROM CONVERSION KIT RXGY-CK INTAKE COUPLING AND NUT FROM PARTS BAG (PROVIDED WITH UNIT) AIRFLOW PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING.

IN THE GENERAL COVERSION INSTRUCTIONS. 5 CUT IF REQ’D. INSTALL HOSE E HOSE F CUT INSTALL CUT INSTALL ROTATE UNIT 90° 5a - ROTATE UNIT 90 5b - CUT 1/4" VENT HOSE TO FIT (APPROX. 5-1/2") AND INSTALL AS SHOWN. 5c - CUT HOSE E AT LINE 1- INSTALL NOTE: MAKE SURE CUT IS STRAIGHT AND SQUARE 5d - CUT HOSE F ON LINE CORRESPONDING TO UNIT WIDTH AND INSTALL NOTE: 17.5": LINE 1, 21": LINE 2, 24.5": DO NOT CUT NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 1/4” TUBE CUT TO FIT (APPROX. 4”) 5a 5b 5c 5d DISCARD 4 HOSE A DISCARD INSTALL 4a - REMOVE METAL BRACKET AND THE Ø.403 DRAIN PLUG- DISCARD. 4b - REMOVE HOSE A - DISCARD 4c - INSTALL Ø .559" CONDENSATE DRAIN PLUG AND CONDENSATE TRAP GASKET AS SHOWN. 4d - INSTALL CONDENSATE TRAP IN JACKET USING (3) SCREWS. NOTE: TO PREVENT DAMAGE TO THE TRAP, THE INSTALLER MAY ELECT TO INSTALL IT DURING A LATER STEP. (AFTER THE UNIT IS ROTATED) 4a 4b 4c 4d RECTANGLE PLUG DISCARD DRILL (3) Ø1/8" HOLES 3a - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD 3b - PRE-DRILL (3) Ø 1/8" HOLES AS SHOWN FOR CONDENSATE TRAP 3a 3b 3 NOTE: REMAINING STEPS SHOWN WITH FURNACE IN HORIZONTAL RIGHT ORIENTATION ST-A1194-32-01

__ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION. __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ ALL DRAIN PORTS ARE PLUGGED. __ UNIT HAS FORWARD PITCH. __ HEAT TAPE INSTALLED(IF REQUIRED) Checklist:

PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG ! HORIZONTAL RIGHT / VERTICAL VENT PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS BAG AND CONVERSION KIT RXGY-CK HORIZONTAL RIGHT / VERTICAL VENT PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS RXGY-CK HORIZONTAL RIGHT / VERTICAL VENT FROM CONVERSION KIT RXGY-CK FROM PARTS BAG (PROVIDED WITH UNIT) FROM CONVERSION KIT RXGY-CK INTAKE COUPLING AND NUT INTAKE AIR DIFFUSER PARTS NEEDED: PARTS NEEDED: FROM THE PARTS BAG YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. PARTS BAG AND CONVERSION KIT RXGY-CK YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE RXGY-CK YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE 1/2" DRAIN HOSE E ELECTRIC DRILL 1/8" DRILL BIT PLIERS FLAT HEAD SCREWDRIVER TOOLS/MATERIALS NEEDED: NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1/2" DRAIN HOSE F CONDENSATE TRAP GASKET PLIERS FLAT HEAD SCREWDRIVER 5/16 HEX HEAD DRIVER 1/4" HEX HEAD DRIVER TOOLS/MATERIALS NEEDED: NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE CONDENSATE TRAP GASKET 1/4" BLACK VENT TUBE #8 X 1/2" SCREW (X3) 5/16 HEX HEAD DRIVER 1/4" HEX HEAD DRIVER TUBING CUTTER TOOLS/MATERIALS NEEDED: NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1/4" BLACK VENT TUBE 2" PIPE GROMMET ( 3.375) TUBING CUTTER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2" PIPE GROMMET 2-5/8" FLUSH MOUNT PLUG 2-5/8" NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE INDUCER COUPLING W/ ELBOW FOR EASIER REMOVAL). 1b - REMOVE CONDENSATE TRAP AND HOSES. (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 1 NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE INDUCER COUPLING W/ ELBOW FOR EASIER 1b - REMOVE CONDENSATE TRAP AND HOSES. (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2a - RELOCATE 1/2" VINYL CAP (YELLOW) ON THE INDUCER COUPLING. 2b - REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. 2d - INSTALL 2-5/8" FLUSH MOUNT PLUG IN TOP PLATE. 2 1a - REMOVE FLUE TRANSITION, TRANSITION COUPLING, AND ELBOW. (NOTE: REMOVE INDUCER COUPLING W/ ELBOW FOR EASIER (NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL NOTE: STEPS 1- 5 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2a - RELOCATE 1/2" VINYL CAP (YELLOW) ON THE INDUCER COUPLING. 2b - REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. 2d - INSTALL 2-5/8" FLUSH MOUNT PLUG IN TOP PLATE. NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2a - RELOCATE 1/2" VINYL CAP (YELLOW) ON THE INDUCER COUPLING. 2b - REMOVE 3-3/8" FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. 2d - INSTALL 2-5/8" FLUSH MOUNT PLUG IN TOP PLATE. NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLUE TRANSITION (DISCARD) TRANSITION COUPLING (RETAIN) FLUE TRANSITION (DISCARD) ELBOW (DISCARD) INSTALL MOVE 2-5/8" 2a 2d 1a 1b DISCARD 2b IDB COUPLING (RETAIN) VENT HOSE (DISCARD) HOSE “D” (DISCARD) DISCARD 2b IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. NOTE: RE-LOCATE IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. RE-LOCATE 2c ST-A1194-33-01 IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION.

4b - PRE-DRILL (3) Ø1/8" HOLES AS SHOWN FOR CONDENSATE TRAP 4c - INSTALL 2" PIPE GROMMET IN JACKET 4d - SLIDE AIR DIFFUSER INTO INTAKE COUPLING AND INSTALL INTO JACKET AS SHOWN. 4 DISCARD INSTALL DRILL (3) Ø 1/8" HOLES AIR DIFFUSER FULLY SEATED AIR DIFFUSER INTAKE COUPLING AND NUT INSTALL 4d 4a 4b 4c 3 MOVE MOVE 3a - RELOCATE THE Ø .403" DRAIN PLUG IN THE COLLECTOR BOX. 3b - RELOCATE 1/4" VINYL CAP (YELLOW) ON COLLECTOR BOX VENT TAP. 3b 3a 5 DISCARD HOSE A DISCARD INSTALL 5a - REMOVE METAL BRACKET AND THE Ø.403 DRAIN PLUG- DISCARD. 5b - REMOVE HOSE A - DISCARD 5c - INSTALL Ø .559" CONDENSATE DRAIN PLUG AND CONDENSATE TRAP GASKET AS SHOWN. 5d - INSTALL CONDENSATE TRAP IN JACKET USING (3) SCREWS. NOTE: TO PREVENT DAMAGE TO THE TRAP, THE INSTALLER MAY ELECT TO INSTALL IT DURING A LATER STEP. (AFTER THE UNIT IS ROTATED) 5a 5b 5c 5d

__ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED(IF REQUIRED) __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED. __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED Checklist: 6 HOSE E 6c HOSE F 6d ROTATE UNIT 90° 6a - ROTATE UNIT 90° 6b - CUT 1/4" VENT HOSE TO FIT (APPROX. 5-1/2") AND INSTALL AS SHOWN 6c - CUT HOSE E AT LINE 1- INSTALL NOTE: MAKE SURE CUT IS STRAIGHT AND SQUARE 6d - CUT HOSE F ON LINE CORRESPONDING TO UNIT WIDTH AND INSTALL NOTE: 17.5": LINE 1, 21": LINE 2, 24.5": DO NOT CUT INSTALL CUT CUT INSTALL NOTE: REMAINING STEPS SHOWN WITH FURNACE IN HORIZONTAL RIGHT ORIENTATION NOTE: USE SOAPY WATER TO FACILITATE EASY HOSE AND TUBE ASSEMBLY 1/4” TUBE CUT TO FIT APPROX. 4” 6a 6b

HORIZONTAL LEFT / RIGHT VENT HORIZONTAL LEFT / RIGHT VENT FROM PARTS BAG (PROVIDED WITH UNIT) PARTS NEEDED: FROM CONVERSION KIT RXGY-CK 2-5/8" PARTS NEEDED: PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS BEFORE PROCEEDING. ! FROM CONVERSION KIT RXGY-CK (X4) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS BAG, CONVERSION KIT RXGY-CK YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS BEFORE PROCEEDING. PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS RXGY-CK AND RXGY-ZK. YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS INTAKE COUPLING AND NUT INTAKE AIR DIFFUSER FROM CONVERSION KIT RXGY-ZK (X10) INTAKE AIR DIFFUSER 2-5/8" FLUSH MOUNT PLUG FROM CONVERSION KIT RXGY-ZK (X2) MOUNT PLUG 1/4" BLACK VENT TUBE #8 X 1/2" SCREW .559" CONDENSATE TRAP DRAIN PLUG 1/2" DRAIN HOSE E 1/2" DRAIN HOSE E 1/2" VINYL CAP (YELLOW) O-RING #8 X 1/2" SCREW TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” PIPE COLLAR / GASKET ASSEMBLY TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER TRANSITION TRANSITION NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” 1/2" DRAIN HOSE G TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER TRANSITION NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” INTAKE PIPE ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. ASSEMBLY W/ O-RING ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. FLUE PIPE ASSEMBLY W/ O-RING 1 1a TRANSITION COUPLING (RETAIN) TRANSITION (DISCARD) ELBOW (RETAIN) IDB COUPLING (RETAIN) HOSE “D” 2 V E V 2a TRANSITION COUPLING (RETAIN) ELBOW (RETAIN) IDB COUPLING (RETAIN) HOSE “D” INSTALL 2-5/8" 2e M O V E 2c 1b HOSE “D” (RETAIN) VENT HOSE (DISCARD) M O V 2d HOSE “D” (RETAIN) VENT HOSE (DISCARD) DISCARD 2b 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD ST-A1194-34-01

ST-A1194-34-01 ROTATE UNIT 180° 5 RELOCATE JUNCTION BOX AND DOOR SWITCH SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS REMOVE KNOCKOUTS DRILL (2) Ø 1/8" HOLES IN BLOWER SHELF DRILL (3) 1/8" HOLES IN JACKET 5a 5b 5c 5d 5e 5a - ROTATE UNIT 180° 5b - REMOVE KNOCKOUTS WITH HAMMER AND FLAT HEAD SCREWDRIVER. 5c - PRE-DRILL (2) Ø 1/8" HOLES IN BLOWER SHELF AS SHOWN FOR FLUE PIPE ASSEMBLY. 5d - PRE-DRILL (3) Ø 1/8" HOLES IN JACKET AS SHOWN FOR CONDENSATE TRAP. 5e - THE JUNCTION BOX WILL HAVE TO BE RELOCATED FOR FLUE PIPE INSTALLATION NOTE: SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS. DISCARD INSTALL 4b 4a 4c 4 4a - RE-INSTALL ELBOW AND COUPLINGS (FROM STEP 1) IN THE ORIENTATION AS SHOWN. 4b - REMOVE Ø .403" DRAIN PLUG FROM ELBOW DRAIN PORT - DISCARD. 4c - INSTALL 1/2" VINYL CAP (YELLOW) ON INDUCER COUPLING. NOTE:LEAVE COUPLING CLAMP CONNECTIONS LOOSE UNTIL STEP 10. 3 INSTALL HOSE G ON COLLECTOR BOX AS SHOWN. NOTE: LET THE OPEN END HANG FREE UNTIL STEP 10. IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE ARROW POINTS IN THE CORRECT DIRECTION. NOTE:

INSERT AIR DIFFUSER INTO COUPLING UNTIL TABS ARE SEATED. INSTALL INTAKE COUPLING IN BLOWER SHELF HOLE AS SHOWN. INSERT AIR DIFFUSER INTO COUPLING UNTIL TABS ARE SEATED. INSTALL INTAKE COUPLING IN BLOWER SHELF HOLE AS SHOWN. INSERT AIR DIFFUSER INTO COUPLING UNTIL TABS ARE SEATED. DIFFUSER FULLY SEATED 7 FULLY SEATED NOTE: DIFFUSER MAY HAVE A TENDENCEY TO FALL OUT OF THE COUPLING AT THIS STEP. tHE INSTALLER MAY ELECT TO INSTALL THE DIFFUSER AFTER ROTATING THE FURNACE TO THE HORIZONTAL POSITION. DIFFUSER MAY HAVE A TENDENCEY TO FALL OUT OF THE COUPLING AT THIS STEP. tHE INSTALLER MAY ELECT TO INSTALL THE DIFFUSER AFTER ROTATING THE FURNACE TO THE HORIZONTAL POSITION. DIFFUSER MAY HAVE A TENDENCEY TO FALL OUT OF THE COUPLING AT THIS STEP. tHE INSTALLER MAY ELECT TO INSTALL THE DIFFUSER AFTER ROTATING THE FURNACE TO THE HORIZONTAL POSITION. 7a PRE-DRILL (4) 1/8" HOLES AND ATTACH W/ (4) SCREWS TYP. (2) PLACES O-RING 1/8" HOLES AND ATTACH W/ (4) SCREWS TYP. (2) PLACES PVC GLUE JOINT PVC GLUE JOINT INSTALL W/ (2) SCREWS 7b 10c 7a - INSTALL INTAKE PIPE: INSTALL INTAKE PIPE: SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. 7a - INSTALL INTAKE PIPE: 7b - INSTALL FLUE PIPE ASSEMBLY: SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 7c - SLIDE PIPE COLLAR ASSEMBLIES OVER THE (2) PIPES AND DRILL (8) SECURE WITH (8) SCREWS AS SHOWN. INSTALL INTAKE PIPE: SLIDE INTAKE PIPE THROUG INSTALL FLUE PIPE ASSEMBLY: INSERT FLUE PIPE SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 7c - SLIDE PIPE COLLAR ASSEMBLIES OVER THE (2) PIPES AND DRILL (8) SECURE WITH (8) SCREWS AS SHOWN. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT, SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER SHELF WITH (2) SCREWS AS SHOWN. ENSURE O-RING IS PROPERLY SEATED. 7c - SLIDE PIPE COLLAR ASSEMBLIES OVER THE (2) PIPES AND DRILL (8) Ø1/8" HOLES USING THE COLLARS AS A TEMPLATE. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. INSERT FLUE PIPE ASSEMBLY THROUGH RIGHT SIDE KNOCKOUT, (NOTE: SLIDE FROM UNDER PLATE) SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER Ø1/8" HOLES USING THE COLLARS AS A TEMPLATE. SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT, CLEAN AND PVC GLUE TO INTAKE COUPLING AS SHOWN. (NOTE: SLIDE FROM UNDER PLATE). SLIDE ANGLED END THROUGH OPENING IN BLOWER SHELF AND ALIGN WITH ELBOW COUPLING. SECURE PIPE ASSEMBLY TO BLOWER Ø1/8" HOLES USING THE COLLARS AS A TEMPLATE. ST-A1194-34-01

HORIZONTAL LEFT / RIGHT VENT HORIZONTAL LEFT / RIGHT VENT FROM PARTS BAG (PROVIDED WITH UNIT) PARTS NEEDED: FROM CONVERSION KIT RXGY-CK 2-5/8" PARTS NEEDED: PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS BEFORE PROCEEDING. ! FROM CONVERSION KIT RXGY-CK (X4) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS PARTS BAG, CONVERSION KIT RXGY-CK YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS BEFORE PROCEEDING. PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS RXGY-CK AND RXGY-ZK. YOU MUST HAVE THE PARTS OUTLINED BELOW FROM THESE KITS INTAKE COUPLING AND NUT INTAKE AIR DIFFUSER FROM CONVERSION KIT RXGY-ZK (X10) INTAKE AIR DIFFUSER 2-5/8" FLUSH MOUNT PLUG FROM CONVERSION KIT RXGY-ZK (X2) MOUNT PLUG 1/4" BLACK VENT TUBE #8 X 1/2" SCREW .559" CONDENSATE TRAP DRAIN PLUG 1/2" DRAIN HOSE E 1/2" DRAIN HOSE E 1/2" VINYL CAP (YELLOW) O-RING #8 X 1/2" SCREW TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” PIPE COLLAR / GASKET ASSEMBLY TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER TRANSITION TRANSITION NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” 1/2" DRAIN HOSE G TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER TRANSITION NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONDITION” INTAKE PIPE ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER PVC GLUE AND PRIMER HAMMER FLAT HEAD SCREWDRIVER TUBING CUTTER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. ASSEMBLY W/ O-RING ELECTRIC DRILL 1/8" DRILL BIT 3/16" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER 5/16 HEX HEAD DRIVER NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE. FLUE PIPE ASSEMBLY W/ O-RING 1 1a TRANSITION COUPLING (RETAIN) TRANSITION (DISCARD) ELBOW (RETAIN) IDB COUPLING (RETAIN) HOSE “D” 2 V E V 2a TRANSITION COUPLING (RETAIN) ELBOW (RETAIN) IDB COUPLING (RETAIN) HOSE “D” INSTALL 2-5/8" 2e M O V E 2c 1b HOSE “D” (RETAIN) VENT HOSE (DISCARD) M O V 2d HOSE “D” (RETAIN) VENT HOSE (DISCARD) DISCARD 2b 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL STRAIGHT OUT 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD 1a - REMOVE ELBOW, (2) COUPLINGS, AND FLUE TRANSITION. NOTE:RETAIN ELBOW AND COUPLINGS FOR LATER USE. 1b - REMOVE TRAP AND HOSES. RETAIN HOSE D FOR LATER USE. NOTE: TO REMOVE TRAP REMOVE (2) SCREWS AND PULL 2a - INSTALL 2-5/8" FLUSH MOUNT PLUG. 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM BLOWER SHELF TO TOP PLATE. 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD 2b - REMOVE LEFT 2-3/8" FLUSH PLUG IN BLOWER SHELF - DISCARD. 2c - RELOCATE RIGHT 2-3/8" FLUSH MOUNT PLUG FROM 2d - RELOCATE Ø.403" DRAIN PLUG IN THE COLLECTOR BOX. 2e - REMOVE RECTANGLE FLUSH MOUNT PLUG-DISCARD ST-A1194-34-01

__ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION. __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ ALL DRAIN PORTS ARE PLUGGED. __ UNIT HAS FORWARD PITCH. __ HEAT TAPE INSTALLED(IF REQUIRED)

PARTS NEEDED: HORIZONTAL LEFT / LEFT VENT PARTS NEEDED: HORIZONTAL LEFT / LEFT VENT FROM CONVERSION KIT RXGY-CK FROM PARTS BAG(PROVIDED WITH UNIT) INTAKE COUPLING W/NUT FROM CONVERSION KIT RXGY-CK PARTS NEEDED: FROM PARTS BAG(PROVIDED WITH UNIT) ! PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. PARTS NEEDED: (X3) PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS FROM THE PARTS BAG AND CONVERSION KIT YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE PROCEEDING. PARTS NEEDED FOR THIS CONVERSION REQUIRE ITEMS AND CONVERSION KIT RXGY-CK. YOU MUST HAVE THE PARTS OUTLINED BELOW BEFORE 1/2" VINYL CAP (YELLOW) TOOLS/MATERIALS NEEDED: ELECTRIC DRILL 1/8" DRILL BIT PLIERS 1/4" HEX HEAD DRIVER .559" CONDENSATE TRAP DRAIN PLUG VENT TUBING TOOLS/MATERIALS NEEDED: PLIERS 1/4" HEX HEAD DRIVER TUBE CUTTER CONDENSATE TRAP GASKET 1/4" BLACK VENT TUBING TOOLS/MATERIALS NEEDED: TUBE CUTTER CONDENSATE TRAP GASKET #8 X 1/2" SCREW 1/2" DRAIN HOSE E 1 NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2 INTAKE COUPLING NOTE: STEPS 1- 4 SHOWN WITH FURNACE IN “AS SHIPPED CONFIGURATION” NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE INSTALL NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2b NOTE: THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC, SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 1 FLUSH MOUNT PLUG (DISCARD) 2d FLUSH MOUNT VENT HOSE (DISCARD) HOSE “D” (RETAIN) .403 DRAIN PLUG (DISCARD) 2a 1/2” VINYL 1/2” VINYL CAP 2c 1 - REMOVE CONDENSATE TRAP AND HOSES. (RETAIN HOSE D FOR LATER USE.) (NOTE: TO REMOVE TRAP, REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 1 - REMOVE CONDENSATE TRAP AND HOSES. (RETAIN HOSE D FOR LATER USE.) (NOTE: TO REMOVE TRAP, REMOVE (2) SCREWS AND PULL STRAIGHT OUT). 2a - REMOVE .403" DRAIN PLUG FROM FLUE ELBOW - DISCARD. 2b - INSTALL INTAKE COUPLING IN TOP PLATE. 2c - INSTALL 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING AS SHOWN. 2d - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. (INSTALL) 2a - REMOVE .403" DRAIN PLUG FROM FLUE ELBOW - DISCARD. 2b - INSTALL INTAKE COUPLING IN TOP PLATE. 2c - INSTALL 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING AS SHOWN. 2d - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. CAP (INSTALL) 2c - INSTALL 1/2" VINYL CAP (YELLOW) IN INDUCER COUPLING AS SHOWN. 2d - REMOVE RECTANGLE FLUSH MOUNT PLUG FROM JACKET SIDE-DISCARD. ST-A1194-35-X0

__ CONFIRM THAT ALL HOSES ARE FREE OF KINKS. __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW. __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING. SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTIONS AT THE BEGINNING OF THIS SECTION. __ ALL CLAMPS AND COUPLINGS ARE TIGHTENED __ ALL DRAIN PORTS ARE PLUGGED. __ UNIT HAS FORWARD PITCH. __ HEAT TAPE INSTALLED(IF REQUIRED)

the following part numbers when ordering: Proper air flow is required for the correct operation of this furnace. Restricted air flow can cause erratic operation and can damage the heat exchanger. The duct system must carry the correct amount of air for heating and cooling if summer air conditioning is used. IMPORTANT: When using outside air, design and adjust the system to maintain a return air temperature ABOVE 55° F during the heating season. NOTE: Return air grilles and warm air registers must not be obstructed or closed. NOTE: Both flanges on the supply and return openings must be bent either up or down but cannot remain flat as shipped from the factory. See Figure 9 for details. UPFLOW INSTALLATIONS 1. Position the unit to minimize long runs of duct or runs of duct with many turns and elbows. 2. For side return: Cut an opening in the side. The open- ing should be cut the full width and height of the knockouts on the unit. See Figure 10. 3. If summer air conditioning is desired, position the in- door coil on the supply-air side of the unit. Ensure that no air can bypass the coil. 4. Connect the furnace to the supply air plenum. 5. Connect the return air ducting to the return-air opening at the bottom and/or side of the unit. Make the connec- tions air-tight to prevent the migration of toxic fumes and odors including carbon monoxide from migrating into the living space. 6. If a filter is installed near the furnace, be sure to have adequate space for the unit filter. NOTE: DO NOT take return air from bathrooms, kitchens, furnace rooms, garages, utility or laundry rooms, or cold areas. RXGF-CA External Side Filter Rack Kit RXGF-CB External Bottom Filter Rack Kit RXGF-CC External Filter Rack Kit - Downflow DUCTING ! WARNING SOME HEATING AIRFLOW VALUES MAY BE HIGHER THAN THOSE REQUIRED FOR COOLING. BE SURE TO SIZE DUCT FOR THE MAXIMUM POS- SIBLE AIRFLOW VALUE. SIZE AIRFLOW DISTRIBUTION SYSTEM TO AC- CEPTABLE INDUSTRY STANDARDS AND METH- ODS. TOTAL STATIC PRESSURE DROP OF THE AIR DISTRIBUTION SYSTEM SHOULD NOT EXCEED .8INCHES W.C. THIS WILL INCLUDE ANY AIR CON- DITIONER COIL, AIR FILTRATION SYSTEM, ZONING SYSTEM, DUCTWORK, ETC. REFER TO ADDED EQUIPMENT TECHNICAL INFORMATION TO OBTAIN PRESSURE DROP INFORMATION WHEN EQUIP- MENT IS OPERATING AT RECOMMENDED HEAT- ING OR COOLING CFMS. ! WARNING THE SOLID METAL BASE PAN MUST BE REMOVED FROM THE TOP OF THE FURNACE BEFORE IN- STALLING THE FURNACE. FAILURE TO REMOVE THIS PAN FROM THE SHIPPING POSITION CAN RE- SULT TO DAMAGE TO THE FURNACE OR EQUIP- MENT. FIGURE 7 REMOVE SOLID BASE FROM TOP OF UNIT. REMOVE SOLID BASE PANEL FROM THE TOP BEFORE INSTALLING FURNACE R ST-A1194-49

of duct with many turns and elbows. 2. If summer air conditioning is desired, position the in- door coil on the supply-air side of the unit. Ensure that no air can bypass this coil. 3. If installing on a combustible floor and not using an air conditioning plenum, install the special non-com- bustible floor base. See Table 1 and Figure 11. 4. Connect the furnace to the supply air plenum. 5. Connect the return air ducting to the return air opening at the top of the unit. Make the connection air tight to prevent the migration of toxic fumes and odors includ- ing carbon monoxide from migrating into the living space from an adjacent fuel-burning appliance. NOTE: In downflow configuration, side return air cut out is not permitted. 6. If a filter is installed near the furnace, be sure to have adequate space for the unit filter. NOTE: DO NOT take return air from bathrooms, kitchens, furnace rooms, garages, utility or laundry rooms, or cold areas. Ducting DUCTING ! WARNING UPFLOW FURNACE: THE SOLID METAL BASE PLATE (SHIPPED WITH THE FURNACE) MUST BE IN- STALLED IN THE FURNACE BOTTOM WHEN USING SIDE AIR RETURN. FAILURE TO INSTALL A BASE PLATE COULD CAUSE THE PRODUCTS OF COM- BUSTION TO CIRCULATE INTO THE LIVING SPACE AND CREATE POTENTIAL LY HAZARDOUS CONDI- TIONS, INCLUDING CARBON MONOXIDE POISON- ING OR DEATH. FOR BOTTOM RETURN, A SOLID METAL BASE PAN MUST NOT BE INSTALLED. ! WARNING A DOWNFLOW INSTALLATION IS CERTIFIED FOR INSTALLATION ON A NON-COMBUSTIBLE FLOOR. USE THE SPECIAL BASE SPECIFIED ON THE FUR- NACE CLEARANCE LABEL. FAILURE TO INSTALL THE SPECIAL BASE MAY RESULT IN FIRE, PROP- ERTY DAMAGE, PERSONAL INJURY OR DEATH. THIS BASE IS AVAILABLE AS AN ACCESSORY. FIGURE 8 1 REMOVE BLOWER DOOR AS SHOWN RETAINING TAB DETAIL INSTALLATION OF SOLID METAL BASE FOR SIDE RETURN APPLICATIONS INTERNAL VIEW OF BLOWER COMPARTMENT 2 INSERT TAB ONTO FLANGE AND PUSH PANEL INTO PLACE 3 INSTALL SCREW IN TAB LOCATED IN THE BLOWER COMPARTMENT TAPE ALL EDGES OF BOTTOM TO COVER GAPS 4 SEAL ALL SEAMS TIGHT WITH METAL TAPE ST-A1194-49

duct with many turns and elbows. 2. If summer air conditioning is desired, position the in- door coil on the supply air side of the unit. Ensure that no air can bypass this coil. 3. Connect the furnace to the supply air plenum. 4. Connect the return air ducting to the return air opening at the return-air end of the unit. Make the connection air tight to prevent the migration of toxic fumes and odors including carbon monoxide from migrating into the liv- ing space from an adjacent fuel-burning appliance. NOTE: In horizontal configuration, side return air cut out is not permitted. 5. If a filter is installed near the furnace, be sure to have adequate space for the unit filter. NOTE: DO NOT take return air from bathrooms, kitchens, furnace rooms, garages, utility or laundry rooms, or cold areas. FIGURE 10 CUT - OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23” x 14” ST-A1194-04-X0 TABLE 1 NON-COMBUSTIBLE FLOOR BASES Floor Base Size No. Cabinet RXGC-B17 17 RXGC-B21 21 RXGC-B24 24 FIGURE 9 INSTALLER BENT - UP ST-A1194-39-00 AS - SHIPPED FLAT INSTALLER BENT - UP ALTERNATE - BENT (DOWN) 21 5/8" COMBUSTIBLE FLOOR MATERIAL NON-COMBUSTIBLE FLOOR BASE ST-A1194-43-00 FIGURE 11 NON-COMBUSTIBLE FLOOR BASE INSTALLATION INSTRUCTIONS FLOOR CUTOUT DIMENSIONS FLOOR BASE NO. CABINET WIDTH FLOOR CUTOUT DIMENSION “A” RXGC-B17 RXGC-B21 RXGC-B24 17.5” 21.0” 24.5” 17.0” 20.0” 23.5” A 21 5/8" FLOOR CUTOUT DIMENSIONS COMBUSTIBLE FLOOR MATERIAL NON-COM- BUSTIBLE FLOOR BASE

the combustion gases. Removal of latent heat results in the condensation of flue gas water vapor. This condensed water vapor drains from the secondary heat exchanger and out of the unit into the drain trap. When installed as a non-direct vent furnace, only exhaust piping is required and inside combustion air may be used. Refer to the section on “NON-DIRECT VENTING.” Direct vent installations require a dedicated combustion air and venting system. All air for combustion is taken from the outside atmosphere and all combustion products are discharged to the outdoors. Adequate facilities for providing air for combustion and ventilation must be provided in accordance with Section 5.3, “Air for Combustion and Ventilation” of the National Fuel Gas Code, ANSI Z223.1 (latest edition), in Canada CSA B149.1, or applicable provisions for the local building codes, and not obstructed so as to prevent the flow of air to the furnace. IMPORTANT: Air for combustion and ventilation must not come from a corrosive atmosphere. Any failure due to cor- rosive elements in the atmosphere is excluded from the warranty coverage. Combustion air must be free of acid-forming chemicals such as sulfur, fluorine and chlorine. These elements are found in aerosol sprays, detergents, bleaches, cleaning solvents, air fresheners, paint and varnish removers, refrig- erants and many other commercial and household prod- ucts. When burned in a gas flame, vapors from these products form acid compounds. The acid compounds in- crease the dew point temperature of the flue products and are highly corrosive after they condense. The following types of installations (but not limited to the following) will REQUIRE outdoor air for combustion due to chemical exposures: Commercial buildings - Buildings with indoor pools - Furnaces installed in laundry rooms - Furnaces in hobby or craft rooms - Furnaces installed near chemical storage - areas Exposure to the following substances in the combustion air supply (but not limited to the following) will also REQUIRE outdoor air for combustion. Permanent wave solutions - Chlorinated waxes and cleaners - Chlorine-based swimming pool chemicals - Water softening chemicals - De-icing salts or chemicals - Carbon tetrachloride - Halogen type refrigerants - Printing inks, paint removers, varnishes etc. - Cleaning solvents (such as perchloroethylene) - Hydrochloric acid - Cements and glues - Antistatic fabric softeners for clothes dryers - Masonry curing and acid washing materials - Combustion air requirements are determined by whether the furnace is in an open (unconfined) area or in a con- fined space such as a closet or small room. When the furnace is installed in the same space with other gas appliances, such as a water heater, be sure there is an adequate supply of combustion and ventilation air for the furnace and the other appliances. Do not delete or reduce the combustion air supply required by the other gas appli- ances in this space. See Z223.1, National Fuel Gas Code (NFPA54) (in Canada CSA B149.1) for determining the combustion air requirements for gas appliances. An un- confined space must have at least 50 cubic feet (volume) for each 1,000 BTUH of the total input of all appliances in the space. If the open space containing the appliances is in a building with tight construction (contemporary con- struction), outside air may still be required for the appli- ances to burn and vent properly. Outside air openings should be sized the same as for a confined space. IMPORTANT: ONLY THE CURRENT VENT INSTRUC- TIONS APPLY. All 90 Plus Gas Furnaces cannot be com- mon-vented. VENTING & COMBUSTION AIR REQUIREMENTS GENERAL VENTING REQUIREMENTS AND GUIDELINES ! WARNING READ AND FOLLOW ALL INSTRUCTIONS IN THIS SECTION. FAILURE TO PROPERLY VENT THIS FURNACE CAN CAUSE CARBON MONOXIDE POI- SONING, OR AN EXPLOSION OR FIRE, RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. ! WARNING ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE CSA B149.1 (CANADA), NFPA 54 AND LOCAL CODES TO PRO- VIDE ADEQUATE COMBUSTION AND VENTILATION AIR FOR THE FURNACE. FAILURE TO DO SO CAN RESULT IN EXPLOSION, FIRE, PROPERTY DAM- AGE, CARBON MONOXIDE POISONING, PER- SONAL INJURY OR DEATH. ! WARNING THIS FURNACE AND ANY OTHER FUEL-BURNING APPLIANCE MUST BE PROVIDED WITH ENOUGH FRESH AIR FOR PROPER COMBUSTION AND VEN- TILATION OF THE FLUE GASES. MOST BUILDINGS WILL REQUIRE THAT OUTSIDE AIR BE SUPPLIED INTO THE FURNACE AREA. FAILURE TO DO SO CAN CAUSE PERSONAL INJURY OR DEATH FROM CARBON MONOXIDE POISONING. REFER TO SEC- TION TITLED “NON-DIRECT VENTING” TO DETER- MINE IF THE FURNACE MUST USE OUTSIDE AIR FOR COMBUSTION. Venting

compartment to protect against over-temperature condi- tions caused by inadequate combustion air supply. The switches are located in the burner compartment. If a switch is tripped it must be manually reset after clearing the fault condition which caused it to open. MATERIAL REQUIREMENTS PIPING REQUIREMENTS The combustion air and vent pipe fittings must conform to American National Standards Institute (ANSI) and Ameri- can Society for Testing Materials (ASTM) standards D1785 (Schedule 40 PVC), D2665 (PVC-DWV), D2241 (SDR-21 & SDR26-26 PVC), D2661 (ABS-DWV) or F628 (Sched- ule 40 ABS-DWV). For Canada PVC, CPVC and polypropylene can be used as long as they conform with ULCS-636C requirements. IMPORTANT: The plastic combustion air and venting com- ponents are of Schedule 40 PVC. If using ABS piping, en- sure that the solvent cement is compatible for joining PVC to ABS components or use a mechanical connection that can withstand the vent temperatures and is corrosion re- sistant. NOTE: Schedule 40 ABS-DWV pipe and fittings may be used as an alternate to PVC pipe for the combustion air inlet and vent pipes. NOTE: Cellular core PVC is also approved for use. It must be Schedule 40PVC-DWV cellular pipe for non-pressure applications and manufactured under ASTM-F-891. All exhaust piping must be installed in compliance with the chapter titled; “Venting of Appliances” in the latest edi- tion of the National Fuel Gas Code, NFPA-54/ANSI Z223.1, CSA B149.1 (Canada), local codes or ordinances and these instructions. 1. All horizontal piping must slope upward with a mini- mum slope of ¼ inch per foot of horizontal vent so that condensate drains back toward the furnace. 2. All horizontal runs must be supported at least every 4 feet. No sags or dips are permitted. 3. IMPORTANT: Do not common vent with any other ap- pliance. Do not install in the same chase or chimney with a metal or high temperature plastic pipe from an- other gas or fuel-burning appliance unless the required minimum clearances to combustibles are maintained between the plastic pipe and other pipes. For Canada PVC, CPVC and polypropylene can be used as long as they conform with ULCS-636C requirements. 4. All vent installed through unconditioned spaces where below-freezing temperatures are expected should be insulated with an approved insulating material such as Armaflex or Rubatex insulation may also be used as long as there is no heat tape applied to the vent pipe. For horizontal runs where water may collect, wrap the vent pipe with self-regulating 3 watt or 6 watt heat tape. The heat tape must be U.L. listed and installed per the manufacturer’s instructions. NOTE: Never cover heat tape with insulation. 5. The minimum vent pipe length is 5 feet [1.5m]. 6. IMPORTANT: No part of the combustion air and/or vent pipes may be installed underground. VENTING & COMBUSTION AIR REQUIREMENTS (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES ! WARNING DO NOT BYPASS, JUMPER, OR REMOVE ANY SAFETY SWITCH FROM THE FURNACE CONTROL CIRCUIT. IF A SAFETY SWITCH CAUSES THE FUR- NACE TO SHUT DOWN OR OPERATE INTERMIT- TENTLY, IT IS AN INDICATION OF A POTENTIAL SAFETY HAZARD THAT MUST BE ADDRESSED BY A QUALIFIED TECHNICIAN, SERVICE AGENCY OR THE GAS SUPPLIER. DO NOT RESET SAFETY CONTROLS WITHOUT CORRECTIVE ACTION AND/OR VERIFICATION OF PROPER SAFE OPERA- TION BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER. REPLACE ANY SAFETY CONTROL COMPONENT ONLY WITH IDENTICAL OEM REPLACEMENT PARTS ! WARNING IN CANADA, PRODUCTS CERTIFIED FOR INSTALLA- TION AND INTENDED TO BE VENTED WITH PLASTIC VENT SYSTEMS (PVC, CVPC & POLYPROPYLENE) MUST USE VENT SYSTEMS THAT ARE CERTIFIED TO THE STANDARD FOR TYPE BH GAS VENTING SYS- TEMS, ULC S636. THE COMPONENTS OF THE CERTIFIED MATERIAL MUST NOT BE INTERCHANGED WITH OTHER VENT SYSTEMS OR UNLISTED PIPE/FITTINGS. PLASTIC COMPONENTS AND SPECIFIED PRIMERS AND GLUES OF THE CERTIFIED SYSTEM MUST BE FROM A SINGLE SYSTEM MANUFACTURER AND NOT INTERMIXED WITH OTHER SYSTEM MANUFAC- TURER’S PARTS. VENT TERMINATIONS ARE NOT REQUIRED TO BE FROM THE SAME MANUFACTURER AS THE REST OF THE VENTING BUT VENT TERMINATIONS MUST BE ULC S636 APPROVED. NOTE: WITH THE EXCEPTION OF THE TERMINATION INLET AIR PIPING IS NOT CONSIDERED TO BE A PART OF THE “VENTING SYSTEM”. THE REQUIRE- MENT THAT VENT MATERIAL BE CERTIFIED TO ULC S636 DOES NOT APPLY TO INLET AIR PIPING. REGARDLESS, ALL TERMINATIONS ON BOTH INLET AND OUTLET PIPES MUST BE CONSTRUCTED FROM COMPONENTS BUILT TO ULC-S636 REQUIREMENTS.

mobilized to prevent pipes from disconnecting. Discon- nected pipes may allow flue products to be released inside the structure. 8. For Direct Vent systems, all pipe penetrations through roof or sidewall must be installed so that the vent and combustion air intake pipes terminate in the same at- mospheric pressure zone. 9. Vent terminations must be installed with the minimum clearances specified in the TERMINATION REQUIRE- MENTS sections of this manual and Figure 21 (for Non-Direct Vent) and Figure 32 (for direct Vent instal- lations). 10. Piping external to the structure (excluding approved venting terminations) and vent passing through un- heated crawl-spaces, attics, verandas, patios or decks must be insulated with approved insulating material to prevent freezing as required for local climate. JOINING PIPE AND FITTINGS All pipe, fittings, solvent cement, primers and procedures must be installed following the vent manufacturer’s installa- tion instructions and must conform to American National Standards Institute and American Society for Testing Mate- rials (ANSI/ASTM) standards as shown in the Table 2 below: CEMENTING JOINTS Properly seal all joints in the PVC vent using the following materials and procedures. PVC CLEANER-PRIMER AND PVC MEDIUM-BODY SOLVENT CEMENT IMPORTANT: After cutting pipe, remove all ragged edges and burrs. This is important to prevent reduction in pres- sure drop throughout the system. 1. Cut pipe end square. Chamfer edge of pipe. Clean fit- ting socket and pipe joint area of all dirt, grease and moisture. 2. After checking pipe and socket for proper fit, wipe socket and pipe with cleaner-primer. Apply a liberal coat of primer to inside surface of socket and outside of pipe. Read instructions included with the primer for proper application. 3. Apply a thin coat of cement evenly within the socket. Quickly apply a heavy coat of cement to the pipe end and insert pipe into the fitting with a slight twisting movement until it bottoms out. NOTE: Cement must be fluid. If not, re-coat. 4. Hold the pipe in the fitting for 30 seconds to prevent the tapered socket from pushing the pipe out of the fitting. 5. Wipe all excess cement from the joint with a rag. Allow 15 minutes before handling. Cure time varies accord- ing to fit, temperature and humidity. NOTE: Stir the solvent cement frequently while using. Use a natural bristle brush or the dauber supplied with the can. The proper brush size is one inch. IMPORTANT: For proper installation: DO NOT use solvent cement that has become curdled, lumpy or thickened. DO NOT thin. Observe shelf precautions printed on containers. For applications below 32°F, use only low- temperature type solvent cement. VENTING & COMBUSTION AIR REQUIREMENTS (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES ! ! * * * * * * * **28*&8'*108K%;** , * * * * **891%+$%*,--*7,/'(8&1*,&2* J * * * * **E,(-/+%*'8* E * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * ! ! ! ! ! ',9-%*"F**,::-(7,9-%*,1'0*1',&2,+21*E8+* $%&'*0,'%+(,-1* 0RSTUVRWX* 1YZ;* !,+%!&.4:!4&8= 3 ! ! ! ! ! ! ! ! * * For Canadian installations all exhaust venting must be certified to ULCS-636C. (U.S. Only) ! WARNING PVC/CPVC SOLVENT CEMENTS AND PRIMERS ARE HIGHLY FLAMMABLE. PROVIDE ADEQUATE VENTILATION AND DO NOT ASSEMBLE NEAR A HEAT SOURCE OR AN OPEN FLAME. DO NOT SMOKE. AVOID SKIN OR EYE CONTACT. OB- SERVE ALL CAUTIONS AND WARNINGS PRINTED ON MATERIAL CONTAINERS. FAILURE TO FOL- LOW THESE GUIDELINES MAY RESULT IN FIRE, EXPLOSION OR ASPHYXIATION CAUSING PER- SONAL INJURY OR DEATH. Venting

The concept of equivalent vent lengths is frequently used in piping systems to account for pressure drop of fittings, such as elbows and valves. The equivalent length of a fit- ting is the length of a straight section of pipe that has an equivalent pressure drop in the application as the fitting used. With the equivalent length vent concept, a vent sys- tem can use up to the maximum number of elbows and vent length of straight pipe as long as the maximum equiv- alent vent length is not exceeded. There are several different types of elbows that can be used when constructing a vent system. Figure 12 shows the standard dimensions for standard and long-sweep 90° (1/4 turn) elbows as specified by ASTM 3311, Standard Specification for Drain, Waste and Vent (DWV) Plastic Fit- tings Patterns. A long-sweep (AKA Long-Radius) 90° (1/4 turn) elbow has an equivalent vent length of 5 feet of straight pipe for either 2 inch or 3 inch plastic pipe. A standard 90° elbow has an equivalent vent length of 10 feet of straight pipe. This equivalent length can be used in circumstances where it might be necessary to lengthen the vent at the outside of the structure, such as in areas with large accumulations of snow in winter. Table 3 shows the equivalent lengths of dif- ferent types of elbows. Table 4 specifies the equivalent maximum vent lengths specified by the manufacturer for each furnace. Listed table maximums have been qualified by the manufacturer. Dependant on individual installation specifics, installations beyond the table recommendations may cause erratic pressure switch operation. Examples: 1. An R95PA0401317MSA direct-vent installation needs a 31 foot long vent run with qty=5, 90° long-sweep el- bows and 2 inch pipe. 31 feet of 2 inch pipe = 31 equivalent feet Qty = 5, 90° long-sweep elbows = 25 equivalent feet ——————————————————————— Total = 56 equivalent feet Since the maximum equivalent vent length specified for an R95PA0401317MSA furnace is 65 feet, this installation is acceptable. 2. If the installation from Example 1 were installed with standard elbows instead of long-sweep elbows, the cal- culation would be as follows: 31 feet of 2 inch pipe = 31 equivalent feet Qty = 5, 90° standard elbows = 50 equivalent feet ——————————————————————— Total = 81 equivalent feet This installation is NOT acceptable as it exceeds the 65 foot maximum specified for this model. VENT PIPE SIZING AND MAXIMUM VENT LENGTHS GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 12 ELBOWS ! ! " ! ! ! ! * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!()%!%?,*1#4%.3!4%.$3)!&'!#!'*33*.$!*+!3)%!4%.$3)!&'!#! + ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!<*3)!3)%!%?,*1#4%.3!4%.$3)!1%.3! / ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!: * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!C!+3#.5#-5!^[i!%42&8!)#+!#.!%?,*1#4%.3!1%.3! 4 ! ! ! ! ! ! !!()*+!%?,*1#4%.3!4%.$3)!/#.!2%! , ! ! ! ! ! ! ! ! ! ! !! 1 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!) * ! ! ! ! ! ! ! ! ! ! ! ',9-%*#F**%./($,-%&'*$%&'*-%&)'?*8E* 78008&*$%&'*%-98J1* EVSSV]^*'a[T* %bcV`RWT]S*-T]^SZ* ^[i!E3#.5#-5!S42&8! P[!K%%3!&'!"*9%! ZFi!g&.$=E8%%9!S42&8! O=PeO!K%%3!&'!"*9%! ^[i!g&.$=E8%%9!S42&8! F!K%%3!&'!"*9%! ! * ! ! ! ! ! ! ! ! ! ! ! ! ! !!g*+3%5!3#24%!0#;*0,0+! ) ! ! ! ! ! !!B%9%.5#.3!&.! * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * !!C.!7^F"C[Z[PGP_YEC!5*-%/3=1%.3!*.+3#44#3*&.!.%%5+!#!GP!'&&3! 4 ! ! ! ! ! ! ! ! ! ! ! ! !! GP!'%%3!&'!O!*./)!!" ! !!!!!!!!!!!!!!!!GP!%?,*1#4%.3!'%%3! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! !!!!!!!!!Fa!%?,*1#4%.3!'%%3! E ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!M'!3)%!*.+3#44#3*&.!'-&0!S;#094%!P!8%-%!*.+3#44%5!8*3)!+3#.5#-5! % ! ! ! ! ! ! ! ! ! ! ! !! GP!'%%3!&'!O!*./)!!" ! !! !!!!!!GP!%?,*1#4%.3!'%%3! ! ! ! ! ! ! ! !!!!F[!%?,*1#4%.3!'%%3! ! ! ! ! !! ! ! !!!!!!!`P!%?,*1#4%.3!'%%3! ( ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! STANDARD 90° 2” D = 2 5/16” 3” D = 3 1/16” LONG SWEEP 90° 2” D = 3 1/4” 3” D = 4 1/16”

GENERAL VENTING REQUIREMENTS AND GUIDELINES ! ! ',9-%*(0/0*%./($,-%&'*$%&'*-%&)'?* *G',9-%*(1*E8+*98'?*2(+%7'*6*&8&42(+%7'*$%&'(&)H* 0\eTW* (][cS* G9'/P?H* :V[T*1VfT* 0RdV_c_*%bcV`RWT]S* -T]^SZ*GETTSH* 0RdV_c_*&c_gTU* \h*%Wg\iXj* 7^F"C[Z[PGP_YEC! ZO>[[[! O!*./)!!! aF! a! G!*./)!!! P[[! a! 7^F"C[a[PGP_YEC! Fa>[[[! O!*./)!!! aF! a! G!*./)!!! P[[! a! 7^F"C[_[PGP_YEC! _[>[[[! O!*./)!!! aF! a! G!*./)!!! P[[! a! 7^F"C[`FPFOPYEC! `Z>[[[! O!*./)!!! G[! O! G!*./)!!! P[[! a! 7^F"CP[[PFOPYEC! ^`>[[[! O!*./)!!! G!*./)!!! P[[! 7^F"CPPFPFOZYEC! PPO>[[[! O!*./)!!! O[! Oll! G!*./)!!! `F! a! &8'%F*!()%!%42&8+!.%%5%5!'&-!3)%!1%.3!3%-0*.#3*&.!#-%!.&3!/&,.3%5!!*.!3)%+%!4%.$3)+!%;/%93!#3! #43*3,5%+!#2&1%!a>[[[!'%%36!!C2&1%!a>[[[!'%%3!#43%-.#3%!)&-*]&.3#4!1%.3!3%-0*.#3*&.!%42&8+!#-%!3&!2%! *./4,5%5!*.!3)%!%?,*1#4%.3!1%.3!4%.$3)6! l!!()*+!*+!3)%!0#;*0,0!.,02%-!&'!4&.$!+8%%9!%42&8+!'&-!%*3)%-!O!&-!G!*./)!9*9%6!H&02*.#3*&.+!&'!4&.$! +8%%9!^[+>!+3#.5#-5!^[+>!&-!ZF+!0#:!2%!,+%5>!2,3!3)%!0#.,'#/3,-%-!-%/&00%.5+!3)%!,+%!&'!4&.$! +8%%9!^[+!8)%.%1%-!9&++*24%!2%/#,+%!3)%!,+%!&'!3)%!0#;*0,0!.,02%-!&'!+3#.5#-5!^[!#.5!ZF!%42&8+! &.4:!0#:!-%+,43!*.!.,*+#./%!',-.#/%!&,3#$%+!5,%!3&!*.5*1*5,#4!*.+3#44#3*&.!+9%/*'*/+6! ll!J&3!#994*/#24%!'&-!#43%-.#3%!3%-0*.#3*&.+6! ! * * O[! Oll! a! Venting

Centrotherm brand Innoflue and Single-wall and flex vent- ing products are approved for use on this furnace product in single appliance applications. Do not exceed maximum venting lengths, diameters or elbows listed in these in- structions (Vent Pipe Sizing and Maximum Vent Lengths section [Table Maximum Equivalent Vent Length]). Application of these products is limited to the ter- minations listed in Table 5 below. These manufacturers have provisions for vent and chimney liners which can be used with this furnace with non-direct venting applications only. Refer to the manufacturer’s installation instructions for proper installation. Contact manufacturer for all installa- tion and application information. Note: These venting products are listed for use in Canada under ULC S636. VENT PIPE SIZING AND MAXIMUM VENT LENGTHS (cont.) Venting ! ! " ! ! ! ! * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!B&!.&3!%;/%%5!0#;*0,0!1%.3*.$!4%.$3)+>!5*#0%3%-+!&-!%42&8+!4*+3%5!*.!3)%+%!*.+3-,/3*&.+!Q+ * * * * * * ! !!C994*/#3*&.!&'!3)%+%!9-&5,/3+!*+!4*0*3%5!3&!3)%!3%-0*.#3*&.+!4*+3%5!*.!) * ! ! * ! !!()%+%!0#.,'#/3,-%-+!)#1%!9-&1*+*&.+!'&-!1%.3!#.5! / ! ! ! ! ! ! ! ! ! ! ! ! ! !!7%'%-!3&!3)%!0#.,'#/3,-%-h+!*.+3#44#3*&.!*.+3-,/3*&.+!'&-!9-&9%-! * ! ! !!()%+%!1%.3*.$!9-&5,/3+!#-%!4*+3%5!'&-!,+%!*.!H#.#5#!,.5%-!UgH!EaGa;! ! ! * * * * * * "k*$%&'* #k$%&'* 2TXYUV[SV\]* &\STX* MEH"[O! MEH"[G! H)*0.%:!!H&1%-! K&-!U+%!&.!J&.=B*-%/3!I%.3!&.4:6!*28*&8'!,+%! 8*3)!#!B*-%/3=I%.3!M.+3#44#3*&.6! JC! MEHY[G! E3#*.4%++!E3%%4!H)*0.%:! H&1%-! K&-!U+%!&.!J&.=B*-%/3!I%.3!&.4:6!*28*&8'!,+%! 8*3)!#!B*-%/3=I%.3!M.+3#44#3*&.6! MCWH[O[Z!3)-,!MCWH[O[_! MCWH[G[Z! 3)-,! MCWH[G[_! W=I%.3!7#*.!H&44#-! K&-!U+%!&.!&.!J&.=B*-%/3!I%.3!&.4:6!*28*&8'! ,+%!8*3)!#!B*-%/3=I%.3!M.+3#44#3*&.6! MEg"([O[O! MEg"([G[G! g&8="-&'*4%!<#44! (%-0*.#3*&.! !! ME(([OO[! ME(([GO[! (%-0*.#3*&.!(%%! !! MES"[O!b!MES"[OG^! MES"[G!b! MES"[GG^! S.5!"*9%! !! MKS"[O! JC! Om!K4%;!S.5!"*9%! !! JC! MH<(GFO! "4#+3*/!H&./%.3-*/!<#44! (%-0*.#3*&.! C99-&1%5!'&-!B*-%/3=I%.3! MH

GUIDELINES Venting Vent terminations for both Non-Direct and Direct-Vent in- stallations must adhere to guidelines specified by the latest edition of ANSI Z21.47 Gas-Fired Central Furnaces. These are clearly detailed in Figure 21 for Non-Direct-Vent installations and Figure 32 for Direct-Vent installations. In addition to these requirements, the installation and venting must also comply with the National Fuel Gas Code (U.S.) and CSA-B149.1 (Canada) and the following requirements must also be met: NOTE: Screens of any kind on the inlet or exhaust pipes are not permitted and will void the manufacturer’s war- ranty. In addition to the requirements shown in Figure 21 for Non-Direct venting and Figure 32 for Direct-Venting, the vent must be installed with the following minimum clear- ances: 1. The vent terminal shall have a minimum horizontal clearance of 4 feet from electric meters, gas meters, regulators and relief equipment. 2. Locate the furnace combustion air inlet a minimum of 3 feet from the vent of any other gas or fuel-burning appli- ance or clothes dryer to prevent recirculation of the flue gases into the furnace combustion air inlet. The only exception to this requirement is the case of multiventing two or more furnaces, which is covered in the section on multiventing of these instructions. In addition to the minimum clearances listed above and in Figure 21 (Non-Direct Vent) and Figure 32 (Direct-Vent), the vent location should also be governed by the following guidelines. 1. Avoid terminating under any kind of patio or deck. How- ever, if necessary, vent piping may be installed under a deck as long as the termination(s) is (are) not under the deck. 2. If installing the vent under a deck, insulate it to insure that no condensate freezes and blocks the pipes. 3. Do not terminate in any area or behind any obstruction that may allow the flue products to become stagnant and/or re-circulate. 4. Do not locate on the side of a building with prevailing winter winds. This will help prevent moisture from freezing on the walls and overhangs (under eaves). 5. Do not extend the vent directly through brick or ma- sonry surfaces. Use a rust-resistant sheet metal or plastic backing plate behind the vent. 6. Avoid locating too close to shrubs as condensate may stunt growth or kill them. TERMINATION REQUIREMENTS ! CAUTION THE COMBUSTION PRODUCTS AND MOISTURE IN THE FLUE GASES WILL CONDENSE AS THEY LEAVE THE TERMINATION. THE CONDENSATE CAN FREEZE ON THE EXTERIOR WALL, UNDER THE EAVES AND ON SURROUNDING OBJECTS. SOME DISCOLORATION TO THE EXTERIOR OF THE BUILDING IS TO BE EXPECTED. HOWEVER, IMPROPER LOCATION OR INSTALLATION CAN RE- SULT IN FINISH DAMAGE TO THE BUILDING AND MAY RE-CIRCULATE THE PRODUCTS OF COM- BUSTION INTO THE COMBUSTION AIR TERMINAL AND FREEZE.

formance we recommend direct vent type installations. If non-di- rect type vent system is used, the requirements for combustion air must be provided as identified in the National Fuel Gas Code and, in Canada, CSA B149.1. Combustion air requirements are determined by whether the fur- nace is in an open (unconfined) area or in a confined space such as a closet or small room. The below instructions are for U.S. installations only. The terms Confined Space and Unconfined Space refer to U.S. installa- tions only. In Canada the proper term to use is Enclosure when specifying that a furnace is installed in a partially enclosed or fully enclosed room or space. For Canadian installations, to determine combustion air requirements for non-direct vent installations, the installer must follow CSA B149.1 and NOT the below instructions. FURNACE LOCATED IN AN UNCON- FINED SPACE (U.S. INSTALLATIONS) USING INDOOR AIR FOR COMBUSTION: An unconfined space must have at least 50 cubic feet for each 1,000 BTUH of total input for all appliances in the space. Table 6 below specifies minimum space requirements and a few exam- ples of the room sizes required for different inputs. The sizes are based on 8-foot ceilings. If the open space containing the furnace is in a building with tight construction, outside air may still be required for the furnace to operate and vent properly. Outside air openings should be sized the same as for a confined space. FURNACE LOCATED IN A CONFINED SPACE (U.S. INSTALLATIONS) A confined space is defined as any space for a given furnace input rating which is smaller than that which is specified in Table 6 as minimum for an “unconfined” space. If the space is less than that specified in this table, the space is defined as “confined”. If the space is small enough to be designated as “confined”, it must have openings into the space which are located in accor- dance with the requirements set forth in the following subsections A and B. Size connected to the heated area or to the outside, and by the input of ALL appliances in the space. If the confined space is within a building with tight construction, combustion air must be taken from outdoors or from an area freely communicating with the outdoors. A. USING INDOOR AIR FOR COMBUSTION: IMPORTANT: Air should not be taken from a heated space with a fireplace, exhaust fan or other device that may pro- duce negative pressure. If combustion air is taken from the heated area, the openings must each have at least 100 square inches of free area. Each opening must have at least one square inch of free area for each 1,000 BTUH of total input in the space. Table 7 shows some typical examples of openings required for com- bustion air openings required for a confined space. B. USING OUTDOOR AIR FOR COMBUSTION: IMPORTANT: Do not take air from an attic space that is equipped with power ventilation. The confined space must communicate with the outdoors in accordance with Methods 1 or 2 below. The minimum dimen- sion of air openings shall not be less than 3 inches. Where ducts are used, they shall be of the same cross-sectional area as the free area of the openings to which they connect. NON-DIRECT VENT GENERAL VENTING REQUIREMENTS AND GUIDELINES ! WARNING ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE, NFPA 54, IN CANADA B149.1, AND LOCAL CODES TO PROVIDE ADEQUATE COMBUSTION AND VENTILATION AIR FOR THE FUR- NACE. FAILURE TO DO SO CAN RESULT IN EXPLOSION, FIRE, PROPERTY DAMAGE, CARBON MONOXIDE POI- SONING, PERSONAL INJURY OR DEATH. ! ! * * ! ! * * * * * * * * * * * * * * * * * * * * * * * * * **E,(-/+%*'8* 2 * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * * **E,(-/+%*'8*E8--8J* , * * * * * * * * * * * * * * * * * * ! * * * * * * ! * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!) * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!()%!+*]%+!#-%!2#+%5!&.!`='&&3!/%*4*.$+6! ! ',9-%*BF**0(&(0/0*1:,7%*+%./(+%0%&'1* E8+*/&78&E(&%2*1:,7%L*&8&42(+%7'*$%&'* (][cS* G9'/?H* 0V]V_c_* 1[RYT* G7cgVY*ESH* 0V]V_c_*,UTR* iVSZ*5hS* 7TVWV]^X*GXb*hSH* 'a[VYRW*+\\_* 1VfT*iP*5l* 7TVWV]^X*GhS*d*hSH* ZO>[[[! O>P[[! OaG! PZ!;!O[! Fa>[[[! O>`[[! GF[! P`!;!O[! _[>[[[! G>F[[! ZG`! OO!;!O[! `Z>[[[! Z>O[[! FOF! OF!;!O[! ^`>[[[! Z>^[[! aPG! O[!;!G[! PPO>[[[! F>a[[! _[[! 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! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 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! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! * * ! ! * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * ! * * * ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * * * * * * * * * * * * * * * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! TABLE 6: MINIMUM SPACE REQUIREMENTS FOR UNCONFINED SPACE, NON-DIRECT VENT TABLE 7: MINIMUM FREE AREA OPENING REQUIRED FOR A FURNACE LOCATED IN A CONFINED SPACE USING INDOOR AIR FOR COMBUSTION. ! WARNING READ AND FOLLOW THE GENERAL VENTING REQUIRE- MENTS AND GUIDELINES OF THIS MANUAL FOR ADDI- TIONAL VENTING REQUIREMENTS PERTAINING TO ALL FURNACE INSTALLATIONS (INCLUDING DIRECT AND NON-DIRECT VENTING). FAILURE TO FOLLOW ALL IN- STRUCTIONS IN THIS MANUAL CAN RESULT IN EQUIP- MENT FAILURE, EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

top and one located within 12 inches of the bottom of the en- closure, shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. A. Where directly communicating with the outdoors through an opening or where communicating to the outdoors through vertical ducts as shown in Figure 14, each opening shall have a minimum free area of 1 square inch for each 4,000 BTUH of total appliance input rating of all equipment in the enclosure. Table 8 below specifies the minimum area for each of the 2 combustion air openings and minimum round duct diameter for direct openings and vertical ducting only. B. Where communicating with the outdoors through horizon- tal ducts, each opening shall have a minimum free area of 1 square inch for each 2,000 BTUH of total appliance input rat- ing of all equipment in the enclosure (see Figure 15). Table 9 specifies the minimum area for each of the 2 combustion air openings and minimum round duct diameter for horizontal ducting only. METHOD 2: One permanent opening located within 12 inches of the top of the enclosure, shall be permitted where the equipment has clearances of at least 1 inch from the sides and back and 6 inches from the front of the appliance. The opening shall di- rectly communicate with the outdoors or communicate NON-DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 13 NON-DIRECT VENT AIR FROM HEATED SPACE ST-A1194-19 FIG C ! ! ! ',9-%*DF**0(&(0/0*E+%%*,+%,*+%./(+%2* E8+*%,7?*8:%&(&)*GJ?%&*'J8*8:%&(&)1* ,+%*/1%2H*J('?*,*E/+&,7%F************************** !;**-87,'%2*(&*,*78&E(&%2*1:,7%***************** ";**/1(&)*8/'288+*,(+*E8+*7809/1'(8&**************************************************** #;**7800/&(7,'(&)*2(+%7'-C*'8*'?%* 8/'1(2%*'?+8/)?*,&*8:%&(&)*8+* '?+8/)?*,*$%+'(7,-*2/7';* '\SRW*(][cS*h\U* ,--*)RX* ,[[WVR]YTX* G9'/?H* EUTT*,UTR*h\U* %RYZ*8[T]V]^* iZT]*"*1T[RURST* 8[T]V]^X*RUT* cXTe*GXb*V]YZTXH* +\c]e*:V[T*2cYS* 2VR_TSTU*G$TUSVYRW* 2cYS*8]WaH*GV]YZTXH* ZO>[[[! P[! Z! Fa>[[[! PF! F! _[>[[[! O[! F! `Z>[[[! OF! F! ^`>[[[! OF! F! PPO>[[[! G[! a! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * !!) * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! & ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * !!) * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ',9-%*!IF**0(&(0/0*E+%%*,+%,*+%./(+%2* E8+*%,7?*8:%&(&)*GJ?%&*'J8*8:%&(&)1* ,+%*/1%2H*J('?*,*E/+&,7%F*************************** !;**-87,'%2*(&*,*78&E(&%2*1:,7%***************** ";**/1(&)*8/'288+*,(+*E8+*7809/1'(8&**************************************************** #;**7800/&(7,'(&)*2(+%7'-C*'8*'?%* 8/'1(2%*'?+8/)?*,*?8+(=8&',-*2/7';* '\SRW*(][cS*h\U* ,--*)RX* ,[[WVR]YTX* G9'/?H* EUTT*,UTR*h\U* %RYZ*8[T]V]^* iZT]*"*1T[RURST* 8[T]V]^X*RUT* cXTe*GXb*V]YZTXH* +\c]e*:V[T*2cYS* 2VR_TSTU* G?\UVf\]SRW*2cYS* 8]WaH*GV]YZTXH* ZO>[[[! OP! a! Fa>[[[! O`! a! _[>[[[! GF! _! `Z>[[[! ZO! `! ^`>[[[! Z^! `! PPO>[[[! Fa! ^! ! ! ! * * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! & ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * !!) * ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! * * & ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ',9-%*!!F**0(&(0/0*E+%%*,+%,*+%./(+%2* E8+*,&*8:%&(&)*GJ?%&*8&%*8:%&(&)*(1* /1%2H*J('?*,*E/+&,7%F********************************************************* !;**-87,'%2*(&*,*78&E(&%2*1:,7%***************** ";**/1(&)*8/'288+*,(+*E8+*7809/1'(8&******************** #;**7800/&(7,'(&)*2(+%7'-C*'8*'?%* 8/'1(2%;* '\SRW*(][cS*h\U* ,--*)RX* ,[[WVR]YTX* G9'/?H* EUTT*,UTR*h\U*R]* 8[T]V]^*iZT]*!* 8[T]V]^*VX*cXTe* GXb*V]YZTXH* +\c]e*:V[T*2cYS* 2VR_TSTU*GV]YZTXH* ZO>[[[! OP! a! Fa>[[[! O`! a! _[>[[[! GF! _! `Z>[[[! ZO! `! ^`>[[[! Z^! `! PPO>[[[! Fa! ^! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! TABLE 8: MINIMUM FREE AREA REQUIRED FOR EACH OPENING (WHEN TWO OPENINGS ARE USED) WITH A FURNACE: 1. LOCATED IN A CONFINED SPACE 2. USING OUTDOOR AIR FOR COMBUSTION 3. COMMUNICATING DIRECTLY TO THE 3. OUTSIDE THROUGH AN OPENING OR 3. THROUGH A VERTICAL DUCT. TABLE 9: MINIMUM FREE AREA REQUIRED FOR EACH OPENING (WHEN TWO OPENINGS ARE USED) WITH A FURNACE: 1. LOCATED IN A CONFINED SPACE 2. USING OUTDOOR AIR FOR COMBUSTION 3. COMMUNICATING DIRECTLY TO THE 3. OUTSIDE THROUGH A HORIZONTAL DUCT. TABLE 10: MINIMUM FREE AREA REQUIRED FOR AN OPENING (WHEN ONE OPENING IS USED) WITH A FURNACE: 1. LOCATED IN A CONFINED SPACE 2. USING OUTDOOR AIR FOR COMBUSTION 3. COMMUNICATING DIRECTLY TO THE 3. OUTSIDE. Venting

(crawl or attic) that freely communicate with the outdoors, and shall have a minimum of: A. 1 Square inch for each 3,000 BTUH of the total input rat- ing of all equipment located in the enclosure and NON-DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 14 NON-DIRECT VENT AIR FROM ATTIC OR CRAWL SPACE OPTIONAL INLET AIR 1 SQ. IN. (6.5 SQ. CM.) PER 4000 BTUH ST-A1194-19 FIG D FIGURE 16 COMBUSTION AIR FITTING OPTION 1 OPTION 2 THIS CONFIGURATION TO BE USED ONLY WITH THE DOWN FLOW ZERO CLEARANCE KIT (RXGY-ZK) T OPTION 1 OPTION 2 OPTION 1 OPTION 2 THIS CONFIGURATION TO BE USED ONLY WITH THE DOWN FLOW ZERO CLEARANCE KIT (RXGY-ZK) ST-A1194-03-XO FIGURE 15 NON-DIRECT VENT OUTSIDE AIR USING A HORIZONTAL DUCT OUTLET AIR 1 SQ. IN. (6.5 SQ. CM.) PER 2000 BTUH INLET AIR 1 SQ. IN. (6.5 SQ. CM.) PER 2000 BTUH ST-A1194-19 FIG E

in the confined space. If the unit is installed where there is an exhaust fan, sufficient ventilation must be provided to prevent the exhaust fan from cre- ating negative pressure. Combustion air openings must not be restricted in any manner. Figure 16 shows allowable inlet air configurations for fur- naces installed with non-direct vent. IMPORTANT: When indoor combustion air is used, the inlet air opening at the furnace must be protected from ac- cidental blockage (see Figure 16). NON-DIRECT VENTING TERMINATIONS These furnaces are design-certified to use a single vent pipe where all combustion air is taken from indoors and can be vented either vertically or horizontally. OPTION 1: VERTICAL TERMINATION Figure 17 shows a standard non-direct vertical vent termi- nation with clearances. OPTION 2: STANDARD HORIZONTAL TERMI- NATION Figure 18 shows the standard non-direct vent horizontal termination with minimum clearances. NON-DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 17 VENT PENETRATIONS FOR NON-DIRECT VENT FURNACES ST-A1194-19 FIG B FIGURE 18 VENT PENETRATIONS FOR NON-DIRECT VENT FURNACES WALL PENETRATIONS 8” MIN. 12” MAX. 20-31cm ST-A1194-19 FIG F ! WARNING DO NOT USE VENT TERMINATIONS WHICH ARE NOT SPECIFIED IN THESE INSTRUCTIONS. USING VENT TERMINATIONS OTHER THAN THOSE SPECI- FIED HERE CAN RESULT IN ERRATIC OPERATION, EQUIPMENT FAILURE OR PERSONAL INJURY OR DEATH FROM CARBON MONOXIDE POISONING. ! CAUTION ALL VENT RUNS THROUGH UNCONDITIONED SPACE WHERE BELOW-FREEZING TEMPERA- TURES MAY OCCUR MUST BE INSULATED WITH APPROVED INSULATION MATERIAL. AN EQUIVA- LENT ARMAFLEX OR RUBATEX INSULATION MAY ALSO BE USED AS LONG AS NO HEAT TAPE IS AP- PLIED TO THE VENT PIPE. FAILURE TO INSULATE THE PIPE COULD RESULT IN FREEZING OF WATER IN THE PIPE THEREBY BLOCKING THE PIPE AND PREVENTING FURNACE OPERATION. Maintain 12” (31cm) minimum clearance above highest anticipated snow level. For Canadian installa- tions, terminations must conform to CSA B149.1- 10, Sect. 8.14. Install inner coupling slightly away from wall to allow for possible thermal expansion and contraction. 12”/31cfm above grade or avg. anticipated snow level. For Cana- dian installations, terminations must conform to CSA B149.1-10, Sect. 8.14. Venting

Figure 19 shows the alternate non-direct vent horizontal termination with minimum clearances. NON-DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES OPTION 4: RXGY-G02 SIDE WALL VENT TERMINATION See Figure 20 and refer to the DIRECT VENT Section, OPTION 8: SIDEWALL VENT KIT of this manual for information and directions on the side wall vent kit. The sidewall vent kit (RXGY-G02) can be used for both direct-vent and non-direct vent installations. 8” to 12” FROM WALL 60” Max. ST-A1194-19 FIG F 12”/31cfm ABOVE GRADE OR AVG. ANTICIPATED SNOW LEVEL. FOR CANADIAN INSTALLATIONS, TERMINATIONS MUST CONFORM TO CSA B149.1-10, SECT. 8.14. ST-A1194-53 MAINTAIN 12”/31cfm FOR THE U.S. AS THE MINIMUM CLEARANCE ABOVE THE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE WHICHEVER IS GREATER. IN CANADA TERMINATIONS MUST CONFORM TO CSA B149.1-10, SECT. 8.14. FIGURE 20 TYPICAL INSTALLATION – NON-DIRECT VENTING FIGURE 19 ALTERNATE HORIZONTAL NON-DIRECT VENT TERMINAL

NON-DIRECT VENT TERMINATION CLEARANCES GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 21 VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS IN THE USA AND CANADA K D E L B C F G A B J A M I H INSIDE CORNER DETAIL VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED Fixed Closed Operable B Fixed Closed Operable B B A = Clearance above grade, veranda, porch, deck or balcony B = Clearance to window or door that may be opened C = Clearance to permanently closed window D = Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (0.6m) from the center line of the terminal E = Clearance to unventilated soffit F = Clearance to outside corner G = Clearance to inside corner H = Clearance to each side of center line extended above meter / regulator assembly I = Clearance to service regulator vent outlet J = &OHDUDQFHWRQRQíPHFKDQLFDODLr supply inlet to building or the combustion air inlet to any other appliance K = Clearance to mechanical air supply inlet L = Clearance above paved sidewalk or paved driveway located on public property M = Clearance under veranda, porch, deck or balcony US Installations 1 Canadian Installations 2 12 inches (305mm) or 12 in. 305mm) above average snow accumulation. 4 feet (1.2m) below or to side of opening; 1 foot (30cm) above opening 6 inches (15cm) for appliances<10,000 Btuh (3kw), 12 inches (30cm) for appliances >10,000 Btuh (3kw), and<100,000 Btuh (30kw), 36 inches (.9m) for appliances > 100,000 Btuh (30kw) * 12" (30cm) * 3 ft. (.9m), 10 ft. (3.05 m) preferred * 7 feet (2.1m) 3 feet (.9m) within a height 15 feet (4.5m) above the meter / regulator assembly *3 feet (.9m) 6 inches (15cm) for appliances <10,000Btuh (3kw), 12 inches (30cm) for appliances > 10,000 Btuh (3kw) and<100,000 Btuh (30kw), 36 inches (.9m)for appliances > 100,000 Btuh (30kw) 3 feet (.9m) above if within 10 feet (3m) horizontally 6 feet (1.8m) 1 In accordance with the current ANSI Z223.1/NFPA 54 Natural Fuel Gas Code 2In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code *For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearance will be in accordance with local installation codes and the requirements of the gas supplier and these installation instructions." * 12" (30cm) * Equal to or greater than soffit depth * 3" (0.9m) * Equal to or greater than soffit depth * No minimum to outside corner * No minimum to outside corner 3 feet (.9m) within a height 15 feet (4.5m) above the meter / regulator assembly 3 feet (.9m)* † A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. ‡ Permitted only if veranda, porch, deck or balcony is full open on a minimum of two sides beneath the floor. We reccommend avoiding this location if possible. S * 2" (0.6m) * 3 ft. (.9m), 10 ft. (3.05 m) preferred 4 feet (1.2m) below or to side of opening; 1 foot (30cm) above opening must conform to CSA B149.1-10, Sect. 8.14. (30cm) Venting ST-A1194-19 FIG A

ROOF INTAKE/VENT DIRECT-VENT (2-PIPE) INSTALLATIONS The field-supplied vent system used for direct-vent installa- tions uses 2 pipes; one inlet pipe for supplying the com- bustion air to the furnace, and an exhaust (or flue) pipe for transferring the flue products to the outside. The flue pipe is elevated at least 12 inches above the air intake pipe for all vertical installations to prevent flue gas recirculation during operation. The furnace combustion air inlet must be located a mini- mum of 3 feet from the vent of any other gas or fuel-burn- ing appliance or clothes dryer to prevent recirculation of the flue gases into the furnace combustion air inlet. The only exception to this requirement is the case of multivent- ing two or more furnaces, which is covered in the section on multiventing of these instructions. Direct-Vent systems must be installed so that the vent and combustion air intake pipes terminate in the same atmos- pheric pressure zone. DIRECT VENT GENERAL VENTING REQUIREMENTS AND GUIDELINES ! WARNING ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE AND LOCAL CODES TO PROVIDE ADEQUATE COMBUS- TION AND VENTILATION AIR FOR THE FURNACE. FAILURE TO DO SO CAN RESULT IN EXPLOSION, FIRE, PROPERTY DAMAGE, CARBON MONOXIDE POISONING, PERSONAL INJURY OR DEATH. ! WARNING READ AND FOLLOW THE GENERAL VENTING RE- QUIREMENTS AND GUIDELINES OF THIS MANUAL FOR ADDITIONAL VENTING REQUIREMENTS PER- TAINING TO ALL FURNACE INSTALLATIONS (IN- CLUDING DIRECT AND NON-DIRECT VENTING). FAILURE TO FOLLOW ALL INSTRUCTIONS IN THIS MANUAL CAN RESULT IN EQUIPMENT FAILURE, EQUIPMENT DAMAGE, PROPERTY DAMAGE, PER- SONAL INJURY OR DEATH. OPTION 1: STANDARD VERTICAL DIRECT-VENT TERMINATION Figure 22 below shows a standard vertical termination for direct venting installations. Maintain the dimensions specified in this drawing for vertical venting of direct-vent furnace installations. Specific details of the roof penetration can be found in Figure 23. ST-A1194-18 FIG J SEE FIGURE 23 FOR MORE INFORMATION 12” VERTICAL SEPARATION BETWEEN COMBUSTION AIR INTAKE AND VENT. 58

* 12” (31cm) U.S. CANADA: TERMINATIONS MUST CONFORM TO CSA B149.1-10, SECT. 8.14 ST-A1194-18-XO DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES Figure 23 below shows the necessary detail for the roof penetration on a standard direct-vent vertical termination. *3” (8cm) minimum only if no snow accumulation is anticipated. Venting

OPTION 3: VARIANT OF STANDARD HORIZONTAL DIRECT-VENT TERMINATION DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 25 VARIANT OF STANDARD HORIZONTAL DIRECT-VENT TERMINATION EXHAUST: COUPLING REQUIRED INTAKE 12” (31cm) From Walll NOTE: 1) A TRAP IN THE COMBUSTION AIR PIPE IS NOT REQUIRED FOR THIS OPTION. 2) PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED AS REQUIRED FOR LOCAL CLIMATE. U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 5” Max. (46cm) 3” Min. (8cm) ST-A1194-18-XO FIGURES O, Q & DETAIL C OPTION B ONLY NOTE: 1. A TRAP MUST BE INSTALLED IN THIS OPTION TO PREVENT WATER FROM ENTERING THE FURNACE THROUGH THE COM- BUSTION AIR PIPE. ORDER KITS RXGY-D05 FOR 2” PIPE OR RXGY- D06 FOR 3” PIPE AND INSTALL PER INSTRUCTIONS IN KIT. 2. PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED FOR LOCAL CLIMATES. OPTION A ONLY NOTE: 1) A TRAP IN THE COMBUSTION AIR PIPE IS NOT REQUIRED FOR THIS OPTION. 2) PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED AS REQUIRED FOR LOCAL CLIMATE EXHAUST COUPLIING REQUIRED EXHAUST COUPLIING REQUIRED WIND VANE FROM FURNACE PARTS BAG INTAKE INTAKE U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 12” (31cm) From Wall 12” (31cm) From Wall 6” (15.5cm) Min. From Wall 18” Max. (46cm) 3” Min. (8cm) 5” Max. (46cm) 3” Min. (8cm) A B CHOOSE EITHER OR 60 DETAIL APPLIES TO BOTH TERMINATIONS SHOWN FIGURE 24 STANDARD HORIZONTAL DIRECT VENTING SUPPORT HORIZONTAL PIPE EVERY FOUR FEET. WHEN 3” PIPE IS USED REDUCE TO 2” BEFORE PENETRATING OUTSIDE WALL. 18” (46cm) MAX. 2” DIA. PIPE MAY BE USED INSIDE THE WALL. INCREASE THE 12” (31cm) MIN. (U.S.) ABOVE GRADE TO KEEP TERMINAL OPENINGS ABOVE ANTICIPATED LEVEL OF SNOW ACCUMULATION WHERE APPLICABLE. CANADA: TERMINATIONS MUST CONFORM TO CSA B149.10, SECT. 8.14. DETAIL “B” INSTALL WIND DEFLECTOR VANE IN 2” PVC COUPLING IN VERTICLE POSITION USING PVC SOLVENT. THE COMBUSTION AIR TERMINATION MUST BE IN THE SAME PRESSURE ZONE AS THE EXHAUST TERMINATION. NO SCREENS MAY BE USED TO COVER COMBUSTION AIR OR EXHAUST. NO T’S CAN BE INSTALLED AT THE TERMINATION. SEE DETAIL A COUPLINGS: REQUIRED ON EXTERIOR, OPTIONAL ON INTERIOR SEE DETAIL B FOR DIMENSION BETWEEN INTAKE AND EXHAUST B ST-A1194-18-XO FIGURE K & DETAILS B & C

GENERAL VENTING REQUIREMENTS AND GUIDELINES Venting 61 FIGURE 26 TYPICAL HORIZONTAL VENTED 2 PIPE TERMINALS ST-A1194-18-XO FIGURES M, L, & DETAILS B & C. OPTION 4: ALTERNATE HORIZONTAL DIRECT-VENT TERMINATION OPTION 5: VARIANT OF ALTERNATE HORIZONTAL DIRECT-VENT TERMINATION REDUCER / ADAPTER 2 EQUIV. VENT LENGTH 1 DETAIL A COMBUSTION AIR TERMINATION 2” PVC COUPLING VANE D FIGURE 27 VARIANT OF ALTERNATE HORIZONTAL DIRECT-VENT TERMINATION U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 60” Max. (152cm) 6” (15.5cm) Min. From Wall 18” Max. (46cm) 3” Min. (8cm) NOTE: 1) FOR EXHAUST / INTAKE PENETRATION DIMENSIONAL RELATIONSHIP SEE DETAIL C NOTE: A TRAP MUST BE IN- STALLED IN THIS OPTION TO PREVENT WATER FROM ENTERING THE FURNACE THROUGH THE COMBUS- TION AIR PIPE. ORDER KITS RXGY-005 FOR 2” PIPE OR RXGY-D6 FOR 3” PIPE AND INSTALL PER INSTRUC- TIONS IN KIT. U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 WIND VANE FROM FURNACE PARTS BAG EXHAUST INTAKE 12” (31cm) From Wall 5” Max. (46cm) 3” Min. (8cm) U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 U.S. MIN. 12” (31cm) ABOVE GRADE OR ANTICIPATED AVG. SNOW ACCUMULATION CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8.14 60” Max. (152cm) 12” (31cm) EXHAUST INTAKE A B 5” Max. (46cm) 3” Min. (8cm) EXHAUST INTAKE 12” (31cm) 60” Max. (152cm) OR CHOOSE EITHER DETAIL APPLIES TO BOTH TERMINATIONS SHOWN ST-A1194-18-XO FIGURES N & P & DETAIL C SEE DETAIL A COUPLINGS: REQUIRED ON EXTERIOR, OPTIONAL ON INTERIOR. SEE DETAIL B FOR DIMENSIONS BETWEEN INTAKE & EXHAUST DETAIL B EXHAUST / INTAKE RELATIONSHIP 4” (10cm) MIN. 12”(31cm) MAX. OPTIONAL INTAKE INTAKE EXHAUST D 3 IN (8cm) MIN. 5 IN (13cm) MAX. NOTES: 1) SUPPORT HORIZONTAL PIPE EVERY FOUR FEET. 2) WHEN 3” PIPE IS USED REDUCE TO 2” BEFORE PENETRATING OUTSIDE WALL. 3) 18” (46cm) MAX. 2” DIA. PIPE MAY BE USED INSIDE WALL. 4) INCREASE THE 12” (31cm) MIN. ABOVE GRADE (U.S.) TO KEEP TERMINAL OPENINGS ABOVE ANTICIPATED LEVEL OF SNOW ACCUMULATION WHERE APPLICABLE. CANADA: REFER TO B149.1, SECT. 8.14. 5) DETAIL“A” INSTALL WIND DEFLECTOR VANE IN 2” PVC COUPLING IN VERTICLE POSITION USING PVC SOLVENT. 6) THE COMBUSTION AIR TERMINATION MUST BE IN THE SAME PRESSURE ZONE AS THE EXHAUST TERMINATION. 7) NO SCREENS MAY BE USED TO COVER COMBUSTION AIR OR EXHAUST. 8) NO T’S CAN BE INSTALLED AT THE TERMINATION. 9) PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED AS REQUIRED FOR LOCAL CLIMATE. OPTION B ONLY NOTE: 1. A TRAP IN THE COMBUSTION AIR PIPE IS NOT REQUIRED FOR THIS OPTION. 2. PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED FOR LOCAL CLIMATES. OPTION A ONLY NOTE: 1. A TRAP MUST BE INSTALLED IN THIS OPTION TO PREVENT WATER FROM ENTERING THE FURNACE THROUGH THE COMBUSTION AIR PIPE. ORDER KITS RXGY-D05 FOR 2” PIPE OR RXGY-D06 FOR 3” PIPE AND INSTALL PER IN- STRUCTIONS IN KIT. 2. PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED FOR LOCAL CLIMATES

HORIZ. DIRECT-VENT TERMINATIONS (OPTIONS 4 &5) DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 28 NOTE: THESE OPTIONAL TERMINATION ANGLES APPLY ONLY TO DIRECT-VENT TERMINATION OP- TIONS 4 AND 5 ABOVE (ALTERNATE HORIZONTAL AND VARIANT OF OPTIONAL HORIZONTAL) IN THIS SEC- TION. DO NOT USE THESE ANGLED TERMINATIONS WITH ANY OTHER TERMINATION OPTION. NOTE: This option is recommended for installations where the distance from the vent pipe perpendicular to an- other structure is less than 10 feet. TOP VIEW FOR USING 22° OR 45° TERMINATION ON A SINGLE FURNACE USING ALTERNATE VENT TERMINATIONS FROM OP- TIONS 4 OR 5 ABOVE, SIMPLY ROTATE THE FINAL EL- BOWS 22 OR 45 DEGREES FROM THE WALL AS SHOWN ABOVE. 1. BOTH THE COMBUSTION AIR AND EXHAUST FINAL TERMINATION ELBOWS MUST BE AT THE SAME ANGLE AND FACE THE SAME DIRECTION (LEFT OR RIGHT). 2. A WIND VANE MUST BE INSTALLED IN THE COM- BUSTION AIR INLET PIPE AS SHOWN IN THE DIA- GRAM. 3. NECKING DOWN FOR THE FINAL EXHAUST IS OP- TIONAL. 4. NUMBER AND DISTANCE BETWEEN (RECOM- MENDED) SUPPORT STRAPS MUST PROVIDE RIGID SUPPORT. 5. MARK THE FINAL (22° OR 45°) ANGLES ON THE TOP OF THE VERTICAL RISERS AND FINAL EL- BOWS BEFORE GLUING INTO PLACE TO ENSURE THAT THE FINAL ANGLES ARE CORRECT. 6. INSULATING THE EXHAUST TERMINATION VERTI- CAL RISER MAY BE NECESSARY IN SOME AREAS, DEPENDING ON THE TOTAL LENGTH AND EX- PECTED TEMPERATURES IN THE AREA. 7. DO NOT ANGLE (22° OR 45°) INTO AN INSIDE COR- NER. 8. DO NOT USE SCREENS ON THE INLET OR EX- HAUST PIPES. 9. ANGLED TERMINATIONS CANNOT BE USED ON PAIRS OF VENTS. 10. THIS TERMINATION MAY CAUSE DISCOLORATION OVER TIME TO THE EXTERNAL SURFACE OF THE STRUCTURE. ST-A1194-20

MAINTAIN 12”/31cm IN THE U.S. ABOVE THE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24”/61cm ABOVE ROOF. IN CANADA TERMINATIONS MUST CONFORM TO CSA B149.1-10, SECT. 8.14. ST-A1194-45-XO DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES OPTIONS 6 & 7: VERTICAL OR HORIZONTAL CONCENTRIC VENT TERMINATION FOR 2” PIPE: RXGY-EO2 (U.S. ONLY) OR RXGY-EO2A (U.S. AND CANADA) FOR 3” PIPE: RXGY-EO3 (U.S. ONLY) OR RXGY-EO3A (U.S. AND CANADA) CONCENTRIC TERMINATIONS These kits are for vertical/horizontal intake air/vent runs and may be installed through roofs or sidewalls. One 5 inch diameter hole (RXGY-E03 & RXGY-E03A) or 3-5/8 inch diameter hole (RXGY-E02 & RXGY-E02A) is required for the installation. See Figure 29 for the general layout. Complete instructions are included with each kit. NOTE: The following IPEX brand concentric vent termina- tion (System 636) may be purchased in the field and used in place of the kits offered by the furnace manufacturer. 3” Concentric Vent Kit = Item #196006 NOTE: Maximum equivalent lengths specified in the VENT PIPE SIZING AND MAXIMUM VENT LENGTHS section of this manual are in addition to the concentric vent. NOTE: With this option a trap on the inlet air pipe is NOT required. Venting

DIRECT VENT (cont.) GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 30 VENT KIT INSTALLATION OPTIONS FIGURE 31 TYPICAL INSTALLATION – DIRECT-VENT MAINTAIN 12”/31cm FOR THE U.S. AS THE MINIMUM CLEARANCE ABOVE THE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE WHICHEVER IS GREATER. IN CANADA TERMINATIONS MUST CONFORM TO CSA B149.1-10, SECT. 8.14. INSTALLATION – RXGY-G02 SIDE WALL VENT KIT This termination is for horizontal venting only. This termi- nation may be installed with either a non-direct-vent or a direct-vent system. When installed as non-direct vent, only one wall penetration is necessary for the exhaust vent. IMPORTANT: Do not install on the prevailing winter wind side of the structure. IMPORTANT: Maintain a minimum of 12 inches (U.S.) or 18 inches (Canada) above grade or the highest anticipated average snow level (whichever is greater) to the bottom of the vent cover. NOTE: Dimensions between the inlet and outlet pipes (di- rect-vent only) are fixed by the sidewall termination. Other drawings in this manual which specify minimum and/or maximum distances (vertical and horizontal) between pipes do not apply to the sidewall termination kit. NOTE: Multiventing – NO COMMON VENTING IS PER- MITTED WITH THIS KIT. NOTE: With this option a trap on the inlet combustion air pipe is NOT required. NOTE: Install the vent and air intake piping into the vent plate openings. Seal all gaps between the pipes and wall. BE SURE TO USE SILICONE SEALANT to seal the vent pipe to the vent cap to permit field disassembly for annual inspection and cleaning. Also seal all pipe penetrations in the wall. DO NOT INSTALL VENT KITS ONE ABOVE THE OTHER to prevent the possibility of condensate freeze-up or recirculation. NOTE: Vent should protrude a maximum of 2-1/4 inches beyond the vent plate. Air intake should protrude a maxi- mum of 1 inch beyond the vent plate. Use the vent plate as a template to locate the vent, com- bustion air and four mounting holes. Observe the mini- mum clearances. Cut two 2-5/8 inch diameter holes for the vent and combustion air openings. For non-direct vent installations only one hole (for the exhaust vent) is re- quired. Drill four 3/16 inch diameter holes for inserting the plastic anchors into the wall. Attach the vent plate to the wall with four screws provided (#8, 2 inches long, SMS Type A18-8 Stainless Steel). Assemble the vent cap to the vent plate. Insert the four 2 inch long stainless steel screws into the vent hole open- ings and securely attach the vent cap to the vent plate. Seal all wall cavities. ST-A1194-46 ST-A1194-46 8” MIN. 8” MIN.

GENERAL VENTING REQUIREMENTS AND GUIDELINES Figure 32 shows minimum clearances that must be used for direct venting terminations. FIGURE 32 DIRECT VENT TERMINAL CLEARANCES K D E L B C F G A B J A M I H INSIDE CORNER DETAIL VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED Fixed Closed Operable B Fixed Closed Operable B B A = Clearance above grade, veranda, porch, deck or balcony B = Clearance to window or door that may be opened C = Clearance to permanently closed window D = Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (0.6m) from the center line of the terminal E = Clearance to unventilated soffit F = Clearance to outside corner G = Clearance to inside corner H = Clearance to each side of center line extended above meter / regulator assembly I = Clearance to service regulator vent outlet J = &OHDUDQFHWRQRQíPHFKDQLFDODLr supply inlet to building or the combustion air inlet to any other appliance K = Clearance to mechanical air supply inlet L = Clearance above paved sidewalk or paved driveway located on public property M = Clearance under veranda, porch, deck or balcony US Installations 1 Canadian Installations 2 12 inches (305mm) or 12 in. 305mm) above average snow accumulation. 6 inches (15cm) for appliances<10,000 Btuh (3kw), 12 inches (305mm) for appliances >10,000 Btuh (3kw), and<100,000 Btuh (30kw), 36 inches (.9m) for appliances > 100,000 Btuh (30kw) * 12" (30cm) * 3 ft. (.9m), 10 ft. (3.05 m) preferred * 7 feet (2.1m) 3 feet (.9m) within a height 15 feet (4.5m) above the meter / regulator assembly *3 feet (.9m) 6 inches (15cm) for appliances <10,000Btuh (3kw), 12 inches (30cm) for appliances > 10,000 Btuh (3kw) and<100,000 Btuh (30kw), 36 inches (.9m)for appliances > 100,000 Btuh (30kw) 3 feet (.9m) above if within 10 feet (3m) horizontally 6 feet (1.8m) 1 In accordance with the current ANSI Z223.1/NFPA 54 Natural Fuel Gas Code 2In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code *For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearance will be in accordance with local installation codes and the requirements of the gas supplier and these installation instructions." * 12" (30cm) * Equal to or greater than soffit depth * 3 ft. (0.9m) * Equal to or greater than soffit depth * No minimum to outside corner * No minimum to outside corner 3 feet (.9m) within a height 15 feet (4.5m) above the meter / regulator assembly 3 feet (.9m)* † A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. ‡ Permitted only if veranda, porch, deck or balcony is full open on a minimum of two sides beneath the floor. We reccommend avoiding this location if possible. S * 2 ft. (0.6m) * 3 ft. (.9m), 10 ft. (3.05m) preferred 6 inches (152mm) for appliances<10,000 Btuh (3kw), 12 inches (305mm) for appliances >10,000 Btuh (3kw), and<100,000 Btuh (30kw), 36 inches (.9m) for appliances > 100,000 Btuh (30kw) 6 inches (152mm) for appliances <10,000Btuh (3kw), 12 inches (305mm) for appliances > 10,000 Btuh (3kw) and<100,000 Btuh (30kw), 36 inches (.9m)for appliances > 100,000 Btuh (30kw) Must conform to CSA B149.1-10, Sect. 8.14. (30cm) ST-A1194-18 FIGURE A Venting

GENERAL VENTING REQUIREMENTS AND GUIDELINES Figures 33 & 34: IF VENTING OF 2 OR MORE FURNACES NEAR EACH OTHER IS REQUIRED, EACH FURNACE MUST BE INDIVIDUALLY VENTED – NO COMMON VENTING IS PERMITTED. See Figures 33 & 34 for positioning of the terminations. When more than two furnaces are to be vented, there must be at least 4 feet between the first two fur- naces and the third and etc. Figure 33, (Detail A) below shows the necessary detail for the roof penetration on a standard direct-vent vertical termination. FIGURE 33 TWO FURNACE VENTING THROUGH ROOF FIGURE 34 TWO FURNACE VENTING THROUGH WALL 3”/8cm MAX. COMBUSTION AIR INTAKE 2” PVC SEE DETAIL “A” A SEE 8”/20cm MIN. 12”/31cm MIN. ABOVE GRADE OR HIGHEST ANTICIPATED SNOW LEVEL. CANADA: MUST CONFORM TO CSA B149.1-10, SECT. 8.14 MINIMUM 12”/31cm IN U.S. ABOVE AVERAGE SNOW ACCUMULATION. MAXIMUM OF 24”/61cm ABOVE ROOF. CANADA: TERMINATION MUST CONFORM TO CSA B-149.1-10, SECT. 8.14 A SEE * 12” (31cm) U.S. CANADA: MUST CONFORM TO CSA B149.1-10, SECT. 8.14 6’ (1.8m) MINIMUM 10’ (3m) RECOMMENDED A SEE MINIMUM 12”/31cm ABOVE GRADE CANADA: TERMINATION MUST CONFORM TO CSA B149.1-10, SECT. 8-14 ST-A1194-18 DETAIL A ST-A1194-21 ST-A1194-22 DETAIL A CONCENTRIC VENTING THROUGH ROOF CONCENTRIC VENTING THROUGH WALL TWO PIPE VENTING THROUGH ROOF TWO PIPE VENTING THROUGH WALL DIRECT VENT VERTICAL TERMINATION DETAIL *3” (8cm) minimum only if no snow accumulation is anticipated. ST-A1194-22 2 FURNACES ➀Terminations must be greater than 8” apart.  Terminations must be less than 24” apart or greater than  36” apart. 3rd OR MORE FURNACES Each additional termination must be greater than 48” from the previous termination. A

GENERAL INFORMATION IMPORTANT: Do not connect into a common drain line with an air conditioner evaporator coil drain located below the fur- nace. A blocked or restricted drain line can result in over-flow of the coil pan and negate the furnace blocked drain shutoff control. The condensate drain trap is self-priming. Upon the first heat attempt after installation or the first ignition after a long off period (e.g. summer), the trap will be dry allowing air to pull through the trap and causing the condensate to be held in the collector box by the negative pressure while the in- ducer is energized. Condensate builds up in the collector box until the level reaches the electronic water level sensor. When this hap- pens the heat attempt is ended thus shutting off the inducer after a post purge. This relieves the negative pressure pulled through the trap and the water then falls into the trap generally priming it after the first time. Note that in some cir- cumstances this process may be repeated up to four times before the trap is fully primed – particularly in horizontal in- stallations where there is less volume of water in the collec- tor box below the water level sensor. Important: There are two options when choosing a height for the condensate vent riser (also see Figure 35): A. CONDENSATE OVERFLOW – When the top of the vent tube is below the elevation of the LOWER condensate water level sensor (aka electronic water level sensor) the furnace will continue to run even if the drain is blocked. A blocked drain will cause the condensate water to overflow the vent and spill water on the floor below it but the furnace will con- tinue to run and heat will be provided. If the installer uses this approach, he must make sure that there is a mechanism for handling the possibility of water overflow onto the floor in the event of a blocked drain. B. FURNACE SHUTOFF – When the top of the vent tube is above the elevation of the LOWER condensate water level sensor (aka electronic water level sensor), the furnace will be shut off in the event of a blocked drain and no heat will be provided. NOTE: IT IS IMPORTANT ANY TIME THE FURNACE IS IN- STALLED IN AN ENVIRONMENT WHERE THE TEMPERA- TURE CAN GET BELOW FREEZING THAT THE TRAP AND ALL CONDENSATE LINE BE PROTECTED FROM FREEZING. IF THE FURNACE IS EXPOSED TO TEM- PERATURES BELOW FREEZING, THE TRAP WILL FREEZE AND THIS WILL CAUSE THE FURNACE TO SHUT DOWN AND/OR DAMAGE THE DRAIN TRAP UN- LESS FREEZE PROTECTION IS INSTALLED. If local codes require, install a condensate neutralizer car- tridge in the drain line. Install cartridge in horizontal position only. Also install an overflow line if routing to a floor drain. See Figure 35. If no floor drain is available, install a condensate pump that is resistant to acidic water. Pumps are available from your local distributor. If pump used is not resistant to acidic water, a condensate neutralizer must be used ahead of the pump. The condensate pump must have an auxiliary safety switch to prevent operation of the furnace and resulting overflow of condensate in the event of pump failure. The safety switch must be wired through the “R” circuit only (low voltage) to provide operation in either heating or cooling modes. ! CAUTION DO NOT RUN DRAIN OUTDOORS. FREEZING OF CONDENSATE CAN CAUSE PROPERTY DAMAGE.

Condensate Drain FIGURE 35 HEIGHT: OPTION “B” HEIGHT: OPTION “A” HEIGHT OF LOWER CONDENSATE DRAIN SENSOR CONDENSATE TRAP DRAIN LINE NEUTRALIZER CARTRIDGE (OPTIONAL) OVERFLOW LINE (REQUIRED ONLY WHEN OPTIONAL NEUTRALIZER CARTRIDGE IS USED) TO FLOOR DRAIN OR CONDENSATE PUMP AIRFLOW HEIGHT: OPTION “B” HEIGHT: OPTION “A” HEIGHT OF LOWER CONDENSATE DRAIN SENSOR CONDENSATE TRAP DRAIN LINE OVERFLOW LINE (REQUIRED ONLY WHEN OPTIONAL NEUTRALIZER CARTRIDGE IS USED) TO FLOOR DRAIN OR CONDENSATE PUMP NEUTRALIZER CARTRIDGE (OPTIONAL) AIRFLOW HEIGHT: OPTION “B” HEIGHT: OPTION “A” HEIGHT OF LOWER CONDENSATE DRAIN SENSOR CONDENSATE TRAP DRAIN LINE NEUTRALIZER CARTRIDGE (OPTIONAL) OVERFLOW LINE (REQUIRED ONLY WHEN OPTIONAL NEUTRALIZER CARTRIDGE IS USED) TO FLOOR DRAIN OR CONDENSATE PUMP NOTE: THESE IMAGES INTENTIONALLY DEPICT GENERIC VIEWS OF THE DRAIN ROUTING, THE INSTALLER HAS THE OPTION TO ROUTE THE DRAIN TO THE RIGHT OR LEFT SIDE OF THE FURNACE AS NEEDED. A I R F L O W HEIGHT: OPTION “B” HEIGHT: OPTION “A” HEIGHT OF LOWER CONDENSATE DRAIN SENSOR CONDENSATE TRAP DRAIN LINE NEUTRALIZER CARTRIDGE (OPTIONAL) OVERFLOW LINE (REQUIRED ONLY WHEN OPTIONAL NEUTRALIZER CARTRIDGE IS USED) TO FLOOR DRAIN OR CONDENSATE PUMP A I R F L O W HORIZONTAL LEFT HORIZONTAL RIGHT DOWNFLOW UPFLOW CONDENSATE DRAIN LOCATING INSTRUCTIONS ST-A1194-4 ST-A1194-42-X0 VENT TUBE HEIGHT Vent tube height is optional: Option A: Install vent tube height with top of the tube Below the level of the water sensor to allow the furnace to run when the drain is blocked, This option will spill water out of the tube when the drain is blocked, but the furnace will continue to run. Option B: Install vent tube height with top of the tube Above the level of the lower condensate water sensor to shut the furnace down when the drain is blocked. This option will not spill water from the drain vent but the furnace will also not continue to run with a blocked drain.

NATURAL GAS AND PROPANE (LIQUEFIED PETROLEUM GAS / LPG) SAFETY GAS SUPPLY GAS SUPPLY GAS SUPPLY AND PIPING ! WARNING • FURNACES USING PROPANE GAS ARE DIFFER- ENT FROM NATURAL GAS MODELS. A NATURAL GAS HEATER WILL NOT FUNCTION SAFELY ON PROPANE AND VICE VERSA. CONVERSIONS OF HEATER GAS TYPE SHOULD ONLY BE MADE BY QUALIFIED INSTALLERS USING FACTORY SUP- PLIED COMPONENTS. THE FURNACE SHOULD ONLY USE THE FUEL TYPE IN ACCORDANCE WITH LISTING ON RATING PLATE. ANY OTHER FUEL USAGE WILL RESULT IN DEATH OR SERI- OUS PERSONAL INJURY FROM FIRE AND/OR EX- PLOSION. • BOTH NATURAL GAS AND PROPANE HAVE AN ODORANT ADDED TO AID IN DETECTING A GAS LEAK. SOME PEOPLE MAY NOT PHYSICALLY BE ABLE TO SMELL OR RECOGNIZE THIS ODORANT. IF YOU ARE UNSURE OR UNFAMILIAR WITH THE SMELL OF NATURAL GAS OR PROPANE, ASK YOUR LOCAL GAS SUPPLIER. OTHER CONDI- TIONS, SUCH AS “ODORANT FADE,” WHICH CAUSES THE ODORANT TO DIMINISH IN INTEN- SITY, CAN ALSO HIDE, CAMOUFLAGE, OR OTH- ERWISE MAKE DETECTING A GAS LEAK BY SMELL MORE DIFFICULT. • UL OR CSA RECOGNIZED FUEL GAS DETECTORS ARE RECOMMENDED IN ALL ENCLOSED PROPANE AND NATURAL GAS APPLICATIONS WHEREIN THERE IS A POTENTIAL FOR AN EXPLO- SIVE MIXTURE OF FUEL GAS TO ACCUMULATE. FUEL DETECTOR INSTALLATION SHOULD BE IN ACCORDANCE WITH THE DETECTOR MANUFAC- TURER’S RECOMMENDATIONS AND/OR LOCAL LAWS, RULES, REGULATIONS, OR CUSTOMS. • BEFORE ATTEMPTING TO LIGHT THE FURNACE, MAKE SURE TO LOOK AND SMELL FOR GAS LEAKS. USE A SOAPY SOLUTION TO CHECK ALL GAS FITTINGS AND CONNECTIONS. BUBBLING AT A CONNECTION INDICATES A LEAK THAT MUST BE CORRECTED. WHEN SMELLING TO DETECT A GAS LEAK, BE SURE TO ALSO SNIFF NEAR THE FLOOR. PROPANE GAS IS HEAVIER THAN AIR AND TENDS TO COLLECT AT LOWER LEVELS MAKING IT MORE DIFFICULT TO SMELL AT NOSE LEVEL. NATURAL GAS IS LIGHTER THAN AIR AND WILL RISE, POSSIBLY ACCUMULATING IN HIGHER PORTIONS OF THE STRUCTURE. • IF A GAS LEAK IS PRESENT OR SUSPECTED: - DO NOT ATTEMPT TO FIND THE CAUSE YOUR- SELF. - NEVER USE AN OPEN FLAME TO TEST FOR GAS LEAKS. THE GAS CAN IGNITE RESULTING IN DEATH, PERSONAL INJURY, OR PROPERTY DAMAGE. - DO NOT TRY TO LIGHT ANY APPLIANCE. - DO NOT TOUCH AND ELECTRICAL SWITCH. - DO NOT USE ANY PHONE IN YOUR BUILDING. - LEAVE THE BUILDING IMMEDIATELY AND CALL THE GAS SUPPLIER FROM A NEIGHBOR’S PHONE. FOLLOW THE GAS SUPPLIER’S IN- STRUCTIONS. - IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE DEPARTMENT. - DO NOT RETURN TO THE BUILDING UNTIL AU- THORIZED BY THE GAS SUPPLIER OR FIRE DE- PARTMENT. • SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MAN- UAL GAS CONTROL VALVE TO THE FURNACE. • CONSULT WITH THE LOCAL BUILDING DEPART- MENT AND FUEL GAS SUPPLIER BEFORE IN- STALLING THE HEATER: - THE INSTALLATION AND PURGING OF GAS PIP- ING MUST CONFORM TO LOCAL CODES, UTIL- ITY COMPANY REQUIREMENTS, AND THE LATEST EDITION OF NATIONAL FUEL GAS CODE (NFGC) - ANSI Z223.1/NFPA 54, OR CSA B149.1, NATURAL GAS AND PROPANE INSTAL- LATION CODE. - LP FURNACES SHOULD NOT BE INSTALLED BELOW GRADE (IN A BASEMENT FOR EXAM- PLE) IF SUCH INSTALLATION IS PROHIBITED BY FEDERAL, STATE, PROVINCIAL, AND/OR LOCAL LAWS, RULES, REGULATIONS, OR CUSTOMS. - INSTALLATION OF A GAS PRESSURE REGULA- TOR MAY BE REQUIRED IN THE GAS SUPPLY LINE. THE REGULATOR SHOULD NOT EXCEED THE MAXIMUM SUPPLY PRESSURE LISTED ON THE FURNACE RATING PLATE. DO NOT USE AN INDUSTRIAL-TYPE GAS REGULATOR. - FOLLOW ALL LOCAL CODES AND SECTION 8.3 OF NFGC WITH REGARD TO PURGING OF GAS PIPING TO ENSURE THAT THE AIR AND/OR FUEL GAS IN THE GAS PIPING IS PROPERLY VENTED TO A LOCATION WHERE AN EXPLOSIVE MIX- TURE CANNOT ACCUMULATE. (Continued on next column)

quired for the furnace to satisfactorily meet the application should be made by a qualified installer, service agency or the gas supplier, using factory-specified or approved parts. IMPORTANT: Connect this furnace only to gas supplied by a commercial utility or commercial fuel provider. IMPORTANT: U.L. or CSA recognized fuel gas and carbon monoxide (CO) detector(s) are recommended in all appli- cations, and their installation should be in accordance with the manufacturer’s recommendations and/or local laws, rules, regulations or customs. Install the gas piping according to all local codes and regu- lations of the utility company. If possible, run a separate gas supply line directly from the meter to the furnace. Consult the local gas company for the location of the manual main shut-off valve. The gas line and manual gas stop must be adequate in size to prevent undue pressure drop and never smaller than the pipe size to the gas valve on the furnace. Refer to Table 12 for natural gas (Table 13 for LP gas) for the rec- ommended gas pipe size. See Figure 36 for typical gas pipe connections. Install a ground joint union within 3 ft. of the cabinet to easily remove the gas valve assembly. Install a manual shut off valve in the gas line outside the furnace cas- ing. The manual shut-off valve should be readily accessi- ble to turn the gas supply on or off. Install a drip leg in the gas supply line as close to the furnace as possible. Always use a pipe compound resistant to the action of liquefied petroleum gases on all threaded connections. IMPORTANT: When making gas pipe connections, use a back-up wrench to prevent any twisting of the main gas valve and manifold. Do not overtighten gas valve on pipe. Any strains on the gas valve can change the position of the gas orifices in the burners. This can cause erratic fur- nace operation. GAS SUPPLY GAS PIPING MANUAL SHUT OFF VALVE UNION DRIP LEG MANUAL SHUT OFF VALVE UNION DRIP LEG UPFLOW ST-A1194-07-X0 FIGURE 36 GAS PIPING INSTALLATION ! WARNING THIS FURNACE IS EQUIPPED AT THE FACTORY FOR USE ON NATURAL GAS ONLY. CONVERSION TO LP GAS REQUIRES A SPECIAL KIT IS AVAIL- ABLE AT THE DISTRIBUTOR. FAILURE TO USE THE PROPER CONVERSION KIT CAN CAUSE FIRE, CARBON MONOXIDE POISONING, EXPLOSION, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. SEE THE CONVERSION KIT INDEX SUP- PLIED WITH THE FURNACE. THIS INDEX IDENTI- FIES THE PROPER LP GAS CONVERSION KIT REQUIRED FOR EACH PARTICULAR FURNACE. CONVENTIONAL ALTERNATE

GAS PIPING INSTALLATION GAS SUPPLY GAS PIPING Gas Supply

GAS PIPING INSTALLATION GAS SUPPLY GAS PIPING ST-A1194-09-X0

the furnace. The gas pipe gasket in the cabinet does not seal around a flexible gas line. If local codes allow the use of a flexible gas appliance con- nector, always use a new listed connector. Do not use a connector which has previously serviced another gas ap- pliance. Massachusetts law requires that all flexible con- nectors be less than 36”. It is important to have all openings in the cabinet burner compartment sealed for proper furnace opera- tion. IMPORTANT: ENSURE that the furnace gas valve is not to be subjected to high gas line supply pressures. DISCONNECT the furnace and its individual manual gas stop from the gas supply piping during any pressure test- ing that exceeds 1/2 PSIG. (3.48 kPa). Natural gas supply pressure must be 5" to 10.5" w.c. LP gas supply pressure must be 11" to 13" w.c. This pressure must be maintained with all other gas-fired appliances in operation. The minimum gas supply pressure to the gas valve for proper furnace input adjustments is 5" w.c. for natural gas, however 6" to 7" is recommended. The minimum gas sup- ply pressure is 11" w.c. for LP gas. GAS VALVE This furnace has a 24-volt gas valve. It has ports for meas- uring supply and manifold gas pressure. The valve body contains a pressure regulator to maintain proper manifold gas pressure. A control switch is on the valve body. It can be set to only the “ON” or “OFF” positions. The gas valve is a slow- opening valve. See Figure 37. When energized, it takes 2 to 3 seconds to fully open. GAS SUPPLY GAS PRESSURE FIGURE 37 TYPICAL GAS VALVE (HONEYWELL) TABLE 11 NATURAL GAS PIPE CAPACITY TABLE (CU. FT./HR.) Capacity of gas pipe of different diameters and lengths in cu. ft. per hr. with pressure drop of 0.3 in. and specific gravity of 0.60 (natural gas). Nominal Length of Pipe, Feet Iron Pipe Size, Inches 10 20 30 40 50 60 70 80 1/2 132 92 73 63 56 50 46 43 3/4 278 190 152 130 115 105 96 90 1 520 350 285 245 215 195 180 170 1-1/4 1,050 730 590 500 440 400 370 350 1-1/2 1,600 1,100 890 760 670 610 560 530 After the length of pipe has been determined, select the pipe size which will provide the minimum cubic feet per hour required for the gas input rating of the furnace. By formula: Gas Input of Furnace (BTU/HR) Cu. Ft. Per Hr. Required = Heating Value of Gas (BTU/FT3) The gas input of the furnace is marked on the furnace rating plate. The heating value of the gas (BTU/FT3) may be de- termined by consulting the local natural gas utility or the LP gas supplier. ! CAUTION ELEVATIONS ABOVE 2000 FT. REQUIRE THAT THE FURNACE INPUT RATING BE ADJUSTED AND THAT THE SIZE OF THE BURNER ORIFICES BE RECAL- CULATED BASED ON ELEVATION AND GAS HEAT- ING VALUE. THE BURNER ORIFICES MAY (OR MAY NOT) NEED TO BE CHANGED. SEE THE SECTION TITLED “HIGH ALTITUDE INSTALLATIONS” OF THIS BOOK FOR INSTRUCTIONS. ! WARNING NEVER PURGE A GAS LINE INTO THE COMBUS- TION CHAMBER. NEVER USE MATCHES, FLAME OR ANY IGNITION SOURCE FOR CHECKING LEAK- AGE. FAILURE TO ADHERE TO THIS WARNING CAN CAUSE A FIRE OR EXPLOSION RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. TO CHECK FOR GAS LEAKAGE, USE AN AP- PROVED CHLORIDE-FREE SOAP AND WATER SO- LUTION, OR OTHER APPROVED METHOD. Gas Supply

Derate. The valve can be converted to use liquified petroleum (LP) gas by replacing the pressure regulator spring with the con- version kit spring. This LP kit spring allows the regulator to maintain the proper manifold pressure for LP gas. NOTE: Order the correct LP conversion kit from the furnace manufacturer. Furnace conversion to LP gas must be per- formed by a qualified installer, service agency or the gas supplier. ORIFICE INSTALLATION LP Gas is a manufactured gas that has consistent heating value across most regions. The Sea Level input should still be reduced by 4% per thousand ft. and the orifice size must be selected based on the reduced input selection chart in High Alt. Instruction Section. To change orifice spuds for either conversion to LP or for el- evation: 1. Shut off the manual main gas valve and remove the gas manifold. 2. Replace the orifice spuds. 3. Reassemble in reverse order. 4. Turn the gas supply back on and check for proper oper- ation and manifold pressure. 5. Attach the notice label alerting the next service techni- cian that the furnace has been converted to LP gas. LP CONVERSION GAS PRESSURE FIGURE 38 TYPICAL LP KIT CONTENTS TABLE 12 LP GAS PIPE CAPACITY TABLE (CU. FT./HR.) Maximum capacity of pipe in thousands of BTU per hour of undiluted liquefied petroleum gases (at 11 inches water column inlet pressure). (Based on a Pressure Drop of 0.5 Inch Water Column) Nominal Length of Pipe, Feet Iron Pipe Size, Inches 10 20 30 40 50 60 70 80 90 100 125 150 1/2 275 189 152 129 114 103 96 89 83 78 69 63 3/4 567 393 315 267 237 217 196 182 173 162 146 132 1 1,071 732 590 504 448 409 378 346 322 307 275 252 1-1/4 2,205 1,496 1,212 1,039 913 834 771 724 677 630 567 511 1-1/2 3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 866 787 2 6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811 1,606 1,496 Example (LP): Input BTU requirement of unit, 120,000 Equivalent length of pipe, 60 ft. = 3/4" IPS required. ! WARNING LP TANKS FROM LOCAL LP SUPPLIER MUST NOT BE USED TO STORE ANYTHING (SUCH AS FERTIL- IZER) EXCEPT LP GAS. THIS INCLUDES ALL DELIV- ERY VESSELS (LP TRUCKS). IF MATERIAL OTHER THAN LP GAS IS USED IN THE SAME VESSELS/TANK AS THE LP GAS, THE LP GAS CAN BECOME CONTAMINATED AND DAMAGE THE FUR- NACE. THIS WILL VOID THE MANUFACTURER’S WARRANTY. CONTACT THE SUPPLIER TO MAKE SURE FERTILIZER IS NOT USED IN THE SAME TANKS USED TO STORE AND DELIVER LP GAS.

The maximum gas supply pressure to the furnace must not exceed 10.5" w.c. natural gas, or 13" w.c. LP gas. The minimum supply gas pressure to the gas valve should be 5 w.c. natural gas or 11 w.c. LP gas. A properly calibrated manometer is required for accurate gas pres- sure measurements. SUPPLY GAS PRESSURE MEASUREMENT A line pressure tap is on the input side of the gas valve. 1. With gas shut off to the furnace at the manual gas valve outside the unit, remove the input pressure tap plug. 2. Connect a manometer to the pressure tap. 3. Turn on the gas supply and operate the furnace and all other gas-fired units on the same gas line as the fur- nace. 4. Note or adjust the line gas pressure to give: A. 5 - 10.5 w.c. for natural gas. B. 11 - 13 w.c. for LP gas. 5. Shut off the gas at the manual gas valve and remove the manometer. 6. Replace the pressure tap plug before turning on the gas. If the supply gas line pressure is above these ranges, in- stall an in-line gas regulator to the furnace for natural gas units. With LP gas, have the LP supplier reduce the line pressure at the regulator. If supply gas line pressure is below these ranges, either re- move any restrictions in the gas supply piping or enlarge the gas pipe. See Tables 3 and 4. With LP gas, have the LP supplier adjust the line pressure at the regulator. Manifold Gas Pressure Measurement. Natural gas manifold pressure should be 3.5" w.c. LP gas manifold pressure should be 10.0" w.c. Only small variations in gas pressure should be made by adjusting the pressure regulator. 1. With the gas to the unit shut off at the manual gas valve, remove the outlet pressure tap plug. 2. Connect a manometer to this pressure tap. 3. Turn on the gas supply and operate the furnace. 4. Note or adjust the manifold gas pressure to give: A. 3.5 w.c. for natural gas. B. 10.0 w.c. for LP gas. 5. To adjust the pressure regulator, remove the regulator cap. 6. Turn the adjustment screw clockwise to increase pres- sure, or counterclockwise to decrease pressure. 7. Securely replace the regulator cap. 8. Shut off gas at the manual gas valve and remove the manometer. 9. Replace the pressure tap plug before turning on the gas. GAS PRESSURE GAS PRESSURE Gas Pressure ! CAUTION ELEVATIONS ABOVE 2000 FT. REQUIRE THAT THE FURNACE INPUT RATING BE ADJUSTED AND THAT THE SIZE OF THE BURNER ORIFICES BE RECAL- CULATED BASED ON ELEVATION AND GAS HEAT- ING VALUE. THE BURNER ORIFICES MAY (OR MAY NOT) NEED TO BE CHANGED. SEE THE SECTION TITLED “HIGH ALTITUDE INSTALLATIONS” OF THIS BOOK FOR INSTRUCTIONS.

trical components are protected from water (condensate). Before proceeding with the electrical connections, be cer- tain that the voltage, frequency and phase corresponds to that specified on the furnace rating plate. For single fur- nace application, maximum over-current protection is 15 amperes. Use a separate fused branch electrical circuit containing a properly sized fuse or circuit breaker. Run this circuit di- rectly from the main switch box to an electrical disconnect that is readily accessible and located near the furnace (as required by code). Connect from the electrical disconnect to the junction box on the left side of the furnace, inside the blower compartment. For the proper connection, refer to the appropriate wiring diagram located on the inside cover of the furnace control box and in these instructions. NOTE: The electrical junction box may be moved to the right side if necessary. A knockout is provided. Seal the op- posite hole with plug provided. NOTE: L1 (hot) and L2 (neutral) polarity must be observed when making field connections to the furnace. The ignition control may not sense flame if L1 and L2 are reversed. Make all electrical connections in accordance with the lat- est edition of the National Electrical Code ANSI/NFPA70 and local codes having jurisdiction. These may be obtained from: National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 CSA - International 5060 Spectrum Way Mississauga, Ontario Canada L4W 5N6 online: www.csa.ca REVERSING THE ELECTRICAL CONNECTION (JUNCTION BOX) If the line voltage electrical needs to be moved to the op- posite side of the furnace, the following steps should be taken: 1. The furnace must NOT be electrically connected to line voltage prior to reversing the electrical connection. 2. Disconnect the wires from the door switch. 3. Remove the junction box from the furnace cabinet wall by removing the two screws that hold it to the cabinet. Leave the wires connected to the junction box. 4. Remove 7/8” plug from hole opposite j-box location. Drill 2 @ 3/16” Ø holes in the jacket. NOTE: Dim- ples/marks are provided in the sheet metal for correct drilling location. ELECTRICAL WIRING ELECTRICAL WIRING LOCKING TABS FIGURE 39 DOOR SWITCH REMOVAL INSTRUCTIONS ST-A1194-44-X0 ! WARNING TURN OFF ELECTRIC POWER AT FUSE BOX OR SERVICE PANEL BEFORE MAKING ANY ELECTRI- CAL CONNECTIONS. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PER- SONAL INJURY OR DEATH. ! WARNING THE CABINET MUST HAVE AN UNINTERRUPTED GROUND ACCORDING TO THE LATEST EDITION OF THE NATIONAL ELECTRICAL CODE, ANSI/NFPA70- OR IN CANADA, THE CANADIAN ELECTRICAL CODE, CSA-C221 OR LOCAL CODES THAT APPLY. DO NOT USE GAS PIPING AS AN ELECTRICAL GROUND. A GROUND SCREW IS PROVIDED IN THE JUNCTION BOX. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH. ! WARNING THIS FURNACE IS EQUIPPED WITH A BLOWER DOOR SAFETY SWITCH. DO NOT DISABLE THIS SWITCH. FAILURE TO FOLLOW THIS WARNING CAN RESULT IN ELECTRICAL SHOCK, PERSONAL INJURY OR DEATH.

net. Install using the two screws removed in step 3 above. Note that all screws penetrating the junction box must be blunt – no sharp tipped screws can be used. 6. Replace the plug from the opposite of the furnace (the new j-box location) to the old j-box location and install qty=2 1/4” plugs from parts bag in empty screw holes in old location of j-box into the mounting screw holes in the old junction box location. 7. Using a flat screwdriver, squeeze the retaining arms on the door switch and gently pry the door switch from it’s opening as shown in Figure 39. 8. Install the door switch in the same opening on the op- posite of the furnace and reconnect the electrical con- nectors (removed in Step 2) to the door switch. THERMOSTAT The room thermostat must be compatible with the furnace. See manufacturer’s thermostat spec sheet for compatabil- ity concerns. Generally, all thermostats that are not of the “current robbing” type are compatible with the integrated furnace control. The low voltage wiring should be sized as shown. NOTE: Do not use 24 volt control wiring smaller than No. 18 AWG. Install the room thermostat in accordance with the instruc- tion sheet packed in the box with the thermostat. Run the thermostat lead wires inside the blower compartment and connect to low voltage terminals as shown on the wiring di- agram. Never install the thermostat on an outside wall or where it will be influenced by drafts, concealed hot or cold water pipes or ducts, lighting fixtures, radiation from fire- place, sun rays, lamps, televisions, radios or air streams from registers. ELECTRICAL WIRING REVERSING ELECTRICAL CONNECTION & THERMOSTAT ST-A0804-01 HEAT COOL FAN M2 M1 H/C EAC L1B XFMR HUM SPARK IGNITION TOWER NEUTRALS LINE P2 ST-A1194-26-X0 FIGURE 41 LINE VOLTAGE CONNECTIONS FIGURE 40 ISOLATION RELAY Electrical Wiring

Line voltage power can be supplied from the terminal la- beled “EAC” and a line voltage neutral terminal on the con- trol board. This will power the electronic air cleaner whenever the circulating air blower is in operation. HUMIDIFIER Line voltage power is supplied from terminal labeled “HUM” to a line voltage neutral terminal on the control board. This will power the humidifier whenever the burner is on and the circulating air blower is operating in the heating mode. NOTE: Maximum current – 1.0 amps for each option (hu- midifier or electronic air cleaner). FILTERS Keep filters clean at all times. A filter is not provided with the furnace, but one must be field-supplied and in- stalled. It is recommended to replace the furnace filter periodically to maintain optimum furnace performance. ACCESSORIES FIELD INSTALLED OPTION ACCESSORIES

FIELD SUPPLIED FILTER CUT - OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23” x 14” FLANGE WRAPS AROUND BACK AND SCREWS TO THE REAR OF THE FURNCE, AT THE LOCATIONS PROVIDED UPFLOW/HORIZONTAL SIDE RETURN HORIZONTAL/DOWNFLOW RXGF-CB ACCESSORT FILTER RACK FIELD SUPPLIED FILTER ST-A1194-10-X0 ST-A1194-11-X0 RXGF-CC ACCESSORT FILTER RACK FIELD SUPPLIED FILTER ST-A1194-12-X0 FIGURE 42 FILTER LOCATIONS ACCESSORIES FIELD INSTALLED OPTION ACCESSORIES (cont.) RXGF-CB ACCESSORY FILTER RACK FIELD SUPPLIED FILTER RXGF-CD ACCESSORY FILTER RACK RXGF-CC ACCESSORY FILTER RACK FIELD SUPPLIED FILTER FIELD SUPPLIED FILTER FLANGE WRAPS AROUND BACK AND SCREWS TO THE REAR OF THE FURNACE AT THE LOCATIONS PROVIDED. Accessories

connected by a common duct system with main power supplied by the same source, and controlled by a common thermostat can be done with the UT Electronic Controls 1194-200 integrated control boards. IMPORTANT: Only twin furnaces with identical control boards. IMPORTANT: Only bottom returns can be used. No more than two furnaces can share the same supply and return. Furnaces must have same heating and blower capacity. Twinning furnaces must operate off the same phase of power. It should be noted that both blowers will run simultaneously when there is a call for heating, cooling or fan. NOTE: Duct system must be adequate to provide correct airflow to each furnace for supply and return. UT ELECTRONIC CONTROLS 1194- 200 CONTROL BOARD (62-104085-02) 1. Single Stage Operation a. Control board “ONE” is on furnace connected to the thermostat. b. The 24 VAC supply to both control boards must be in phase with each other. c. Connect the “C,” “W” and “TWIN” terminals to coun- terparts on each control. d. Twinning is automatically detected when wire is con- nected to the twin terminal on both controls. If twin- ning is detected and then lost in the same power cycle, the furnace control will declare and display fault code 20 at the seven-segment display. See Figure 43 for twinning wire diagram for 1-stage ther- mostat. See Figure 44 for twinning wire diagram for 2-stage ther- mostat. TWINNING FURNACE TWINNING INSTALLATIONS Twinning

INDICATE A TWINNING PROBLEM. CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT. ACCESSORIES CONTROL BOARDS Accessories FIGURE 43 UT ELECTRONIC CONTROLS 1194-200 CONTROL BOARD, TWINNING CONNECTION – SINGLE STAGE OPERATION THERMOSTAT ST-A1194-25 1-STAGE

ACCESSORIES CONTROL BOARDS (cont.) Accessories THERMOSTAT ST-A1194-25 2-STAGE

High Altitude No high altitude pressure switch changes are required; only a 4% derate at altitudes above 2,000 feet. NATURAL GAS NOTE: Factory installed orifices are calculated and sized based on a sea level Natural Gas heating value of 1100 BTU per cubic ft. Regional reduced heating values may nullify the need to change orifices except at extreme alti- tudes. The following are examples of orifice sizing using the Na- tional Fuel Gas Code Annex E, tables E.1.1(a) and E.1.1(d). For a simplified estimation of orifice size based on heating value and elevation, use Table 13. However, calculations are the best method. Example: 900 BTU/ft3 Regional Natural Gas Heating Value I / H = Q 14000 / 900 = 15.56 ft.3 I = Sea Level input (per burner): 14000 H = Sea Level Heating Value: 900 Q = 15.56 ft3 Natural Gas per hour. From Table E.1.1(a) of National Fuel Gas Code Handbook, current edition (3.5 w.c. column) Orifice required at Sea Level: #49 From Table E.1.1(d) of National Fuel Gas Code Handbook, current edition Orifice required at 5000 ft. elevation (4% de-rate per thou- sand ft.): #51 Orifice required at 8000 ft. elevation (4% de-rate per thou- sand ft.): #52 ! CAUTION INSTALLATION OF THIS FURNACE AT ALTITUDES ABOVE 2000 FT. (610 M) SHALL BE IN ACCOR- DANCE WITH LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, THE NATIONAL FUEL GAS CODE, ANSI Z223.1/NFPA 54 OR IN CANADA, NATU- RAL GAS AND PROPANE INSTALLATION CODE, CSA B149.1. ! CAUTION ELEVATIONS ABOVE 2000 FT. REQUIRE THAT THE FURNACE INPUT RATING BE ADJUSTED AND THAT THE SIZE OF THE BURNER ORIFICES BE RE-CAL- CULATED BASED ON ELEVATION AND GAS HEAT- ING VALUE. THE BURNER ORIFICES MAY (OR MAY NOT) NEED TO BE CHANGED. THE FOLLOWING EX- AMPLES SHOW HOW TO DETERMINE IF AN ORI- FICE CHANGE WILL BE NECESSARY AND HOW TO DETERMINE THE NEW ORIFICE SIZE. IN CANADA, AS AN ALTERNATE TO ADJUSTING THE BURNER ORIFICE SIZE, THE MANIFOLD GAS PRESSURE MAY BE ADJUSTED. THIS METHOD IS COVERED LATER IN THIS SECTION. THIS METHOD OF ADJUSTING MANIFOLD PRESSURE MAY ONLY BE USED IN CANADIAN INSTALLATIONS.

HIGH ALTITUDE NATURAL GAS AT HIGH ALTITUDES (cont.)

ORIFICE INSTALLATION LP Gas is a manufactured gas that has consistent heating value across most regions. The NFGC guidelines are used with the following excep- tion: The recommended LP Gas high altitude orifice selections differ slightly in that the NFGC LP orifice chart, as they are not accurate for this furnace product. The National Fuel Gas Code LP orifices are based on an 11 of water column pressure at the orifice, which differs from this furnace prod- uct that use 10 of water column at the orifice. This differ- ence requires a deviation from the NFGC orifice size recommendations. The Sea Level input should still be re- duced by 4% per thousand ft. and the orifice size must be selected based on the reduced input selection Table 14. ORIFICE ORDERING INFORMATION Orifice sizes are selected by adding the 2-digit drill size re- quired in the orifice part number. Drill sizes available are 39 through 64; metric sizes available 1.10mm (-90): Orifice Part Number 62-22175-(drill size) Example 1: # 60 drill size orifice required Part # 62-22175-60 Example 2: 1.10 mm drill size orifice required Part # 62-22175-90 ALTERNATE METHOD OF CANADIAN HIGH-ALTITUDE DERATE In Canada, unless an orifice change is specifically man- dated by local codes, an alternate method of altitude dera- tion through a reduction in manifold pressure is acceptable as described in Table 15. The information in Table 15 is based on a heating value of 1000 BTU per cubic feet of natural gas, and 2500 BTU per cubic feet of LP gas. IMPORTANT: Actual input rates must be measured on-site with manifold pressure adjustment to ensure that an actual 10% reduction in input rate is achieved. Once this field adjustment has been made, the label shown in Figure 45 must be affixed in a conspicuous loca- tion on the front of the furnace cabinet: NOTE: This label is supplied in the information packet shipped with each furnace. TABLE 14 LP GAS ORIFICE DRILL SIZE (4% PER 1000 FT DE-RATE) IMPORTANT: 90 Plus Models only. Input (per Altitude burner) 14000 Orifice Size 0 to 2000 ft. 14,000 1.10 mm (factory kit) 2000
-3000
12,320 #58 3000
-4000
11,760 #59 4000
-5000
11,200 #59 5000
-6000
10,640 #60 6000
-7000
10,080 #60 7000
-8000
9,520 #61 8000
-9000
8,960 #62 9000
-10000
8400 #63 TABLE 15 ALTERNATE METHOD FOR CANADIAN HIGH-ALTITUDE DERATE IMPORTANT: 90 Plus Models only. NATURAL GAS LP GAS ALTITUDE INPUT OUTPUT ORIFICE SIZE MANIFOLD PRESSURE 0’ - 2000’ 42,000 56,000 70,000 84,000 98,000 112,000 39,900 53,200 66,500 79,800 93,100 106,400 #51 3.5” W.C. 2001’ - 4500’ 37,800 50,400 63,000 75,600 88,200 100,800 35,910 47,880 59,850 71,820 83,790 95,760 #51 3.0” W.C. ALTITUDE INPUT OUTPUT ORIFICE SIZE MANIFOLD PRESSURE 0’ - 2000’ 42,000 56,000 70,000 84,000 98,000 112,000 39,900 53,200 66,500 79,800 93,100 106,400 1.15mm 10” W.C. 2001’ - 4500’ 37,800 50,400 63,000 75,600 88,200 100,800 35,910 47,880 59,850 71,820 83,790 95,760 1.15mm 7.6” W.C. THE MANIFOLD PRESSURE OF THIS APPLIANCE HAS BEEN FIELD ADJUSTED TO OBTAIN THE CORRECT INPUT RATING FOR INSTALLATION AT ALTITUDES BETWEEN 2,000 FEET AND 4,500 FEET ELEVATION. LA PRESSION DU DISTRIBUTEUR D'ALIMENTATION DE CET APPAREIL A ÉTÉ AJUSTÉ SUR LES LIEUX AFIN D'OBTENIR LA BONNE PUISSANCE D'ENTRÉE POUR UNE INSTALLATION ENTRE 2000 ET 4500 PIEDS D'ALTITUDE. FIGURE 45 MANIFOLD PRESSURE-CHANGE LABEL 92-24399-01-01 High Altitude

Start- Up This furnace is equipped with a direct ignition control. Each time the room thermostat calls for heat, the ignitor lights the main burners directly. See the lighting instructions on the furnace. TO START THE FURNACE 1. Remove the burner compartment control access door. 2. IMPORTANT: Be sure that the manual gas control has been in the “OFF” position for at least five minutes. Do not attempt to manually light the main burners. 3. Turn off the furnace electrical power and set the room thermostat to its lowest setting. 4. Turn the gas control to the “ON” position or move the gas control lever to the “On” position. 5. Replace the burner compartment control access door. 6. Turn on the furnace electrical power. 7. Set the room thermostat to a point above room temper- ature to light the main burners. 8. After the burners are lit, set the room thermostat to a desired temperature. 9. Operate gas heat for a minimum period of 15 minutes and adjust input rate (page 88) and observe conden- sate system for leaks. Correct leaks and set rate, shut- down furnace and repeat until no leaks in condensate system can be detected. TO SHUT DOWN THE FURNACE 1. Set the room thermostat to its lowest setting and wait for furnace to shut down. 2. Remove the burner compartment control access door. 3. Shut off the gas to the main burners by turning the gas control to the “OFF” position. SEQUENCE OF OPERATION UT ELECTRONIC CONTROLS Integrated Controls with Direct Spark Ignition. 1. Each time the thermostat “W” (Heating) contacts close, the furnace control checks to make sure the pressure switch is open. Next the induced draft blower (inducer) begins a prepurge cycle. 2. The air proving negative pressure switch(es) closes. 3. After the 30-second pre-purge, the gas valve opens for an 8-second trial for ignition. 4. The spark igniter is energized to light the gas burners and stays energized for the up to 7 seconds after the gas valve opens. 5. 8 seconds after the gas valve opens the remote flame sensor must prove flame ignition for one second using the process of flame rectification. If the burners don’t light, the system goes through another ignition se- quence. It does this up to four times before entering a 1-hour lockout. 6. The main blower starts approximately 20 seconds after the burners ignite. 7. When the thermostat “W” (Heat Call) ends, the gas valve closes, flame is extinguished, the induced draft blower stops after a 10-second post-purge, and the negative pressure switch opens. 8. The main blower continues until timed off by the setting on the integrated furnace control board. Sequence if the system doesn’t light or doesn’t sense flame: 1. On a call for heat, the furnace control checks to make sure the pressure switch is open. Next the control runs the inducer for 30 seconds to prepurge. 2. After the 30-second pre-purge, the gas valve opens for an 8-second trial for ignition. The inducer continues and the igniter stays energized. 3. If flame is not sensed during the 8th second after the gas valve opens, the gas valve closes, and the igniter de-energizes. 4. The inducer stops (may take up to 20 seconds for in- ducer fan to stop rotating) and the control verifies that the pressure switch has opened. Once the open pres- sure switch is confirmed, the control begins the next ig- nition cycle by energizing the inducer for a pre-purge of 30 seconds. After a 30-second pre-purge period, the gas valve is energized and the control looks for a flame signal for up to 8 seconds. If no flame is sensed, the cycle is repeated up to 4 times before entering a 1-hour lockout. ! WARNING SHOULD OVERHEATING OCCUR OR THE GAS SUP- PLY FAIL TO SHUT OFF, CLOSE THE MANUAL GAS VALVE FOR THE APPLIANCE BEFORE SHUTTING OFF THE ELECTRICAL SUPPLY. FAILURE TO DO SO CAN CAUSE AN EXPLOSION OR FIRE RESULTING IN PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

All furnace controls come standard with a 7-segment diag- nostic display. During standby mode with no fault codes present, the display will read “0” (zero). During normal thermostat heating, cooling or continuous fan operation, a letter will be displayed to describe the mode of operation as follows: C = Cooling or Heat-Pump Heat Operation F = Continuous Fan Operation H = Gas Heating Operation When the control senses a fault present, it will display a code to help in diagnoses and troubleshooting. A list of normal operating codes and potential fault codes follows: The method for displaying a two-digit fault is to display the first (most significant) digit for one second immediately fol- lowed by the second digit – which is also displayed for a duration of one second. A ½ second pause is then dis- played. Cycle repeats until the fault is cleared. Each fault is flashed (displayed) a minimum of two times even if the fault condition has cleared before the fault can be dis- played twice. DUAL FAULTS DISPLAYED In some cases when two faults are present simultaneously, both faults are displayed. These exceptions for dual faults are noted below. Sequence of display: A. The first two-digit fault will be displayed once as de- scribed above. B. The upper-most horizontal segment of the seven-seg- ment display is energized for ½ second C. The second two-digit fault is displayed once as de- scribed above. D. The upper-most horizontal segment of the seven-seg- ment display is energized for ½ again. This cycle repeats until one fault is gone (in which case the remaining fault will be displayed as described above) or both faults are gone or otherwise as noted below: 1. When a failed ignition has occurred four times in a row, the control enters one-hour lockout and fault codes “10” and “11” will be displayed alternately as de- scribed above. 2. When flame is lost five times in a row, the control en- ters one-hour lockout and fault codes “10” and “13” will be displayed alternately as described above (A-D). 3. While the control is in one-hour lockout due to an unex- pected flame, the fault codes “14” (unexpected flame) and “10” (soft lockout) will be displayed alternately at the seven-segment display as described above (A-D). 4. While the control has entered a one-hour lockout after declaring a dead blower after the main limit control has been open for more than 150 seconds, the fault codes “61” (Non-operational blower) and “10” (soft lockout) will be displayed alternately as described above (A-D). Note: the dead blower fault and associated one-hour lockout will occur up to four times in one heat call. Upon declaring this fault for the fourth time in one heat call, the control will enter hard lockout. 5. When the main limit has been open during a gas heat call for more than 150 seconds and has not yet re- closed, the fault codes “61” (Non-operational blower) and “22” (open limit) will be displayed alternately as described above (A-D) until the limit re-closes. 6. When the water level sensor has declared a blocked drain (heating operation is shut down due to this fault) and then the fault goes away after the gas heat is shut down. If upon return to the next heat attempt (same heat call) a blocked drain is sensed again within five minutes after energizing the inducer for pre-purge, the control will enter a one-hour lockout and the fault codes “59” (Blocked Drain) and “10” (soft lockout) will be dis- played alternately as described above (A-D). 7. When the water level sensor has declared a 1-hr lock- out after declaring a Water Sensed condition (heating operation is shut down due to this fault) several times consecutively. When the control enters lockout the fault codes “59” (Water Sensed) and “10” (soft lockout) will be displayed alternately as described above (A-D). When multiple fault codes are present and are not part of the seven exceptions noted above, the fault code dis- played is resolved by priority. For example an unexpected flame has a higher priority than a blocked drain. There- fore, if both conditions are present at the same time, the unexpected flame fault will be displayed until the condition is corrected and then the blocked drain fault will be dis- played (provided the fault condition is still present). FAULT CODES CODE Description 0 STANDBY C COMPRESSOR ON (COOLING OR HEAT-PUMP HEAT) H GAS HEAT ON F CONTINUOS FAN ON 10 1 HOUR LOCKOUT 11 FAILED IGNITION 12 LOW FLAME SENSE 13 FLAME LOST 14 UNEXPECTED FLAME 20 TWINNING FAULT 22 MAIN LIMIT OPEN 26 LINE AND NEUTRAL REVERSED 33 MRLC (MANUAL RESET LIMIT CONTROL) (AKA ROLL-OUT) OPEN 55 PRESSURE SWITCH STUCK CLOSED WHEN SHOULD BE OPEN 57 PRESS SWITCH STUCK OPEN WHEN SHOULD BE CLOSED 58 WATER SENSE CIRCUIT OPEN 59 WATER SENSED 61 BLOWER FAULT – BLOWER UNABLE TO RUN 93 INTERNAL CONTROL FAULT

that the original fault causing the lockout is cleared and power to the unit is cycled off and then back on again or (soft lockout only) if a heat call is cycled off for greater than 2 seconds but less than 20 seconds. The furnace control will not initiate a heat cycle during any lockout condition. A call for compressor or continuous fan will generally be responded to but control will display the lockout error fault code instead of the “C” (for compressor) or “F” (for Continuous fan). FIVE-MINUTE LOCKOUT A five minute “soft” lockout will be initiated if the low pres- sure switch fails to close after 60 seconds of continuous in- ducer operation at the beginning of a normal heat cycle (pressure switch proving period). The seven-segment dis- play will display the appropriate fault. Lockout will automat- ically be reset after five minutes. ONE-HOUR LOCKOUT A one hour “soft” lock out will be initiated when: - Flame has not been detected after four ignition trials. - Flame has been lost for five times in one heat call. - Undesired flame has been detected. The one-hour pe- riod will commence after flame is no longer detected. - Dead Blower has been detected (main limit circuit open for more than 150 seconds) - When voltage has unexpectedly been detected on the gas valve circuit and voltage goes away when inducer is shut off. - If a Water Sensed condition is detected once during heat call (heat cycle terminated in response to fault) and then clears and then is detected again within 5 minutes of the next heat attempt (same heat call). The seven-segment display will alternately display “10” and the code number for the fault causing the lockout. Lockout will automatically be reset after one hour HARD LOCKOUT Three conditions shall cause a hard lockout: 1. The control senses an unspecified internal fault. Fault code “93” is set and displayed. This lockout condition cannot be reset by cycling the heat call. 2. Voltage is detected unexpectedly on the gas valve con- tacts (welded relay) and will not clear by cycling the in- ducer. Fault code “93” is set and displayed. This lockout condition cannot be reset by cycling the heat call. 3. The furnace control will declare that the blower motor is inoperable (dead) if the main limit control has been open for more than 150 seconds. Gas heating is termi- nated. However, the control continues to try to operate heating for up to four attempts in case the blower motor starts working again. If a dead blower has been de- clared four times in one heat call, the furnace control enters a hard-lockout. Fault code “61” is set and dis- played. This lockout condition CAN be reset by cycling the heat call.

FIELD SELECTIONS –– DIPSWITCHES A dipswitch bank; SW1 is provided for some field adjust- ments. Heating blower off delay, cooling (and heat-pump) blower off delay, display (7-Segment) orientation and fault clear are the adjustments and functions that can be han- dled using the dipswitches. Seven-Segment Display Orientation; SW1 As the control will be applied in a multi-position furnace a means of changing the orientation of the seven segment display is required. This dipswitch is to be labeled SW1. Factory setting of the SW1 dipswitch is OFF. The factory setting display orientation is with the control placed in a vertical orientation and the low voltage terminal block T2 is in the bottom position. Heat Blower-Off Delay; SW2 & SW3 A means of controlling the HEAT speed blower “off” delay time is provided. The dipswitches are labeled SW2 and SW3. The following table defines the settings: SW2 SW3 OFF OFF 90 seconds (Factory Setting) ON OFF 120 seconds OFF ON 160 seconds ON ON 180 seconds Cooling & Heat-Pump Heat Blower Off Delay; SW4 A means of controlling the COOL speed blower “off” delay time is required. The dipswitch is labeled SW4. The follow- ing table defines the settings: SW4 OFF 30 seconds (Factory Setting) ON 45 seconds FIGURE 46 DIPSWITCH MAP ST-A1210-03

A yellow or amber L.E.D. is provided to indicate flame sta- tus. When normal flame is sensed, the flame L.E.D. is con- tinuously on. The flame L.E.D. will flash at a rate of one to four flashes per second if a weak flame is detected. If an unexpected flame is detected, the L.E.D. will flash rapidly. The L.E.D. is off when there is no flame detected. For more diagnostics information, consult the wiring dia- gram and troubleshooting chart at the end of this book. TIMING DIAGRAM On the next page is a timing diagram for normal heat se- quence. This diagram assumes no faults are present dur- ing the heat call. MANUAL FAULT CLEAR; SW4 Faults will automatically be cleared from the fault buffer after one week. The fault buffer can also be manually cleared if this is de- sired. For the first 30 seconds after a change in state of dip- switch SW4, the furnace control will wait to determine if the switch becomes on/off/on/off/on/off or off/on/off/on/off/on within 30 seconds. When this action is detected within 30 sec- onds, the fault code memory buffer shall be cleared. Be sure to return the dipswitch to the original state (on or off) or is in the de- sired position after clearing the fault buffer using this method. FAULT RECALL Upon power reset, the three most recent faults which are less than one week old will be flashed in succession from the most recent to the oldest. This will be done as a diag- nostic aid to the field technician. After one week, a fault will be removed from the fault buffer. FIELD SELECTIONS & ADJUSTMENTS FAULT CLEAR

The furnace is shipped from the factory with #51 orifices. They are sized for natural gas having a heating value of 1100 BTU/cu. ft. and a specific gravity of .60. Since heating values vary geo-graphically, the manifold pressure and/or gas orifice size may need to be changed to adjust the furnace to its nameplate input. Consult the local gas utility to obtain the yearly average heating value and orifice size required to fire each individual burner at 14,000 BTU/HR. NOTE: Refer to the High Altitude Section of this manual and the National Fuel Gas Code for high altitude rate ad- justment above 2,000 ft. ADJUSTING OR CHECKING FURNACE INPUT The maximum gas supply pressure to the furnace should be 7" w.c. for natural gas. The minimum gas supply pres- sure for purposes of input adjustment to the furnace should be 5" w.c. A calibrated manometer is required for accurate gas pres- sure readings. The manifold pressure should be set at 3.5" w.c. for natural gas. Only small variations in the gas flow should be made by means of the pressure regulator adjustment. In no case should the final manifold pressure vary more than plus or minus 0.3" w.c. from the above- specified pressures. To adjust the pressure regulator, remove the regulator cap and turn the adjustment screw clockwise to increase pres- sure or counterclockwise to decrease pressure. Then re- place the regulator cap securely. Any necessary major changes in the gas flow rate should be made by changing the size of the burner orifices. To change orifice spuds, shut off the manual gas valve and remove the gas manifold. On LP gas furnaces, the LP gas supply pressure must be set between 11" and 14" w.c. by means of the tank or branch supply regulators. The fur- nace manifold pressure should be set at 10" w.c. at the gas control valve. For elevations up to 2,000 feet, rating plate input ratings apply. For high altitudes (elevations over 2,000 ft.), see conversion kit index for derating and orifice spud sizes. Checking furnace input is important to prevent over firing beyond its design-rated input. NEVER SET INPUT ABOVE THAT SHOWN ON THE RATING PLATE. Use the follow- ing table or formula to determine input rate. Start the fur- nace and measure the time required to burn one cubic foot of gas. Prior to checking the furnace input, make certain that all other gas appliances are shut off, with the excep- tion of pilot burners. Time the meter with only the furnace in operation. TABLE 16 TIMING DIAGRAM ST-A1194-27-X0 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OPEN OFF OFF CLOSED OPEN ON ON ON ON ON ON OFF ON FIELD SELECTIONS & ADJUSTMENTS Field Selections

cannot be over emphasized. TEMPERATURE RISE CHECK To determine if the air flow is correct, make a temperature rise check. 1. Insert a thermometer in the supply air duct as close to the furnace as possible yet out of a direct line from the heat exchanger. See Figure 47. 2. Insert a thermometer in the return air duct as close to the furnace as possible. 3. Operate the furnace for a minimum of 15 minutes in gas heat mode. 4. When the thermometer in the supply air duct stops ris- ing (approximately five minutes), subtract the return air temperature from the supply air temperature. The dif- ference is the temperature rise. 5. Compare the measured temperature rise to the ap- proved temperature rise range listed on the furnace name plate. See Figure 48. If the measured temperature rise is above the approved range, the air flow is too low. More air must be moved by speeding up the blower, by removing restrictions in the duct system, or by adding more supply or return air duct. If the measured temperature rise is below the approved range, the air flow is too much. Use lower speed tap on the multi-speed blower. FIGURE 47 TEMPERATURE RISE MEASUREMENT FIGURE 48 TYPICAL FURNACE NAME PLATE ! CAUTION IT IS IMPORTANT THAT EACH DUCT SYSTEM BE SIZED AND INSTALLED FOR THE SPECIFIC APPLICA- TION BY PROPERLY APPLYING THE APPROPRIATE INDUSTRY ACCEPTED STANDARD. IF LESS THAN MINIMUM STANDARDS ARE APPLIED, THE EQUIP- MENT USER COULD EXPECT TO EXPERIENCE HIGHER UTILITY BILLS, MAJOR COMPONENT FAIL- URE, VARYING DEGREES OF AIR NOISE OR OTHER UNSATISFACTORY ISSUES, OVER WHICH THE MANU- FACTURER HAS NO CONTROL. ! WARNING THE MEASURED TEMPERATURE RISE SHOULD BE AS CLOSE TO THE MIDDLE OF THE STATED RANGE AS POSSIBLE. FOR EXAMPLE, IF THE RISE RANGE IS 40 TO 70°F (4.5°-21°C), THE MIDDLE OF THE RISE RANGE IS 55°F (12.8°C). IN ALL APPLICATIONS, THE IN- STALLER MUST ADJUST THE TEMPERATURE RISE TO THIS “MIDDLE” POINT AS CLOSELY AS POSSIBLE. ALSO, THE TEMPERATURE RISE SHOULD NEVER BE ABOVE OR FALL BELOW THE STATED RANGE. DOING SO COULD CAUSE DAMAGE TO THE HEAT EX- CHANGER OR INTERMITTENT OPERATION WHICH COULD CAUSE INJURY OR DEATH AND WILL VOID THE MANUFACTURER’S WARRANTY FOR THIS PRODUCT.

AIRFLOW Low 732 695 669 639 605 547 512 487 Med. Lo 875 845 820 792 766 726 659 605 Med. Hi* 1073 1049 1004 975 943 900 864 798 High 1279 1239 1213 1174 1121 1069 1033 980 Low 830 793 755 705 654 599 544 496 Med. Lo 940 908 875 821 766 710 653 584 Med. Hi* 1168 1139 1109 1060 1010 942 874 802 High 1421 1385 1349 1291 1232 1147 1062 976 Low 852 827 802 752 701 662 623 580 Med. Lo 986 955 923 883 843 790 737 686 Med. Hi* 1238 1211 1183 1139 1094 1036 978 897 High 1493 1452 1410 1364 1318 1257 1195 1084 Low 1313 1275 1236 1221 1184 1141 1098 1053 Med. Lo 1488 1452 1415 1384 1328 1279 1229 1170 Med. Hi* 1732 1704 1676 1630 1579 1498 1417 1343 High 1983 1929 1874 1810 1742 1663 1583 1477 Low 1329 1313 1296 1260 1224 1171 1117 1049 Med. Lo 1535 1498 1461 1422 1382 1325 1268 1203 Med. Hi* 1796 1748 1700 1656 1612 1536 1460 1370 High 2019 1961 1903 1843 1782 1687 1592 1489 Low 1249 1234 1219 1183 1146 1112 1078 1017 Med. Lo 1440 1429 1417 1381 1344 1313 1281 1221 Med. Hi* 1770 1750 1730 1696 1662 1611 1559 1463 High 2123 2077 2031 1983 1934 1856 1777 1665 TABLE 17 AIR FLOW PERFORMANCE – (-)95P SERIES MODELS Model Motor HP [W] Blower Size IN [MM] CFM Air Delivery External Static Pressure, ”W.C. [kPa] Speed Tap 0.1 [0.02] 0.2 [0.05] 0.3 [0.07] 0.4 [0.10] 0.5 [0.12] 0.6 [0.15] 0.7 [0.17] 0.8 [0.19] (-)95PA 0401 317MSA 1/4 [187] 11 x 7 [279 x 178] (-)95PA 0601 317MSA (-)95PA 0701 317MSA (-)95PA 0851 521MSA (-)95PA 1001 521MSA (-)95PA 1151 524MSA 1/2 [373] 11 x 8 [279 x 203] 1/2 [373] 11 x 8 [279 x 203] 3/4 [559] 11 x 10 [279 x 254] 3/4 [559] 11 x 10 [279 x 254] 3/4 [559] 11 x 11 [279 x 279] *Factory Setting For Heat All shaded cells are valid heating settings. Do not use speed taps and/or static pressures which do not fall into the shaded cells on this table. BLOWER SPEED SELECTIONS The furnace controls have four active quick connect termi- nals for connecting the motor speed leads. These are: 1. FAN — motor runs on this speed when the thermostat is in the “FAN ON” position. 2. COOL — connect desired cooling speed. 3. HEAT — connect desired heating speed. 4. H/C (for heat/cool) — connect desired speed when heating and cooling speed are the same. In addition to the active motor terminals, there are two motor parking terminals (labeled M1 and M2) available for placing any unused motor taps. All unused motor taps should be connected to either M1 or M2. These terminals (M1 and M2) will not be energized under any condition. IMPORTANT: Do not connect any motor speeds to “HEAT” and/or “COOL” if you use the “HEAT/COOL” terminal. 5. If heating and continuous fan speed are the same, “piggyback” jumper across “FAN” and “HEAT” termi- nals. If cooling speed and fan speed are desired to be the same, this may be accomplished by not connecting “Y” to the in- tegrated furnace control. IMPORTANT: If desired for cool, fan and heat to all be the same speed, then “piggyback” jumper “H/C” to “FAN” and do not connect “Y” to the integrated fur- nace control. Do not connect anything to “Heat” or “Cool.” See selection titled “Field Selections – Dipswitches” for setting the heating and cooling blower off delay times. Air Flow

the blower motor or the induced draft blower motor. Addi- tion of lubricants can reduce the motor life and void the warranty. The blower motor and induced draft blower motor are per- manently lubricated by the manufacturer and do not re- quire further attention. The blower motor and induced draft blower motor must be cleaned periodically by a qualified installer, service agency, or the gas supplier to prevent the possibility of overheating due to an accumulation of dust and dirt on the windings or on the motor exterior. And, as suggested elsewhere in these instructions, the air filters should be kept clean. Dirty filters can restrict airflow. The motor depends upon suffi- cient air flowing across and through it to keep from over- heating. GAS FURNACE (DIRECT DRIVE) INSTRUCTIONS GAS FURNACE (DIRECT DRIVE) INSTRUCTIONS FOR CHANGING BLOWER SPEED The blower motor is wired for blower speeds required for normal operation as shown. If additional blower speed taps are available (leads con- nected to “M1” and “M2” on the electronic control), speeds may be changed if necessary to fit requirements of the par- ticular installation. Reconnect the unused motor leads to “M1” or “M2.” Check motor lead color for speed designation. Heating speeds should not be reduced where it could cause the furnace air temperature to rise to exceed the maximum outlet air temperature specified for the unit. IMPORTANT: Always check air temperature rise after changing the heating speed for any reason. ! WARNING DISCONNECT THE ELECTRICAL SUPPLY TO THE FURNACE BEFORE ATTEMPTING TO CHANGE THE BLOWER SPEED. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL IN- JURY OR DEATH. ! CAUTION DO NOT OPERATE THE SYSTEM FOR EXTENDED PE- RIODS WITHOUT FILTERS. A PORTION OF THE DUST ENTRAINED IN THE AIR MAY TEMPORARILY LODGE IN THE AIR DUCT RUNS AND AT THE SUPPLY REGIS- TERS. ANY RECIRCULATED DUST PARTICLES WILL BE HEATED AND CHARRED BY CONTACT WITH THE FURNACE HEAT EXCHANGER. THIS RESIDUE WILL SOIL CEILINGS, WALLS, DRAPES, CARPETS AND OTHER HOUSEHOLD ARTICLES. ! WARNING THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED SERVICE PERSONNEL FOR PROPER IN- STALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY BE- FORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RE- SULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE, POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, CARBON MONOXIDE POI- SONING, EXPLOSION, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. DISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING ANY MAINTENANCE. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.

cessive scale build-up in the flue passageways. However, it is recommended that a qualified installer, service agency, or the gas supplier annually inspect the flue pas- sageways, the vent system and the main burners for con- tinued safe operation. Pay particular attention to deterioration from corrosion or other sources. • IMPORTANT: It is recommended that at the beginning and at approximately half way through the heating sea- son, a visual inspection be made of the main burner flames for the desired flame appearance by a qualified in- staller, service agency or the gas supplier. If the flames are distorted and/or there is evidence of back pressure, check the vent and inlet air system for blockage. If there is carbon and scale in the heat exchanger tubes, the heat exchanger assembly should be replaced. • IMPORTANT: It is recommended that at the beginning of the heating season, the flame sensor be cleaned with fine steel wool or Scotch Bright Pad by a qualified in- staller, service agency or the gas supplier. • IMPORTANT: It is recommended that at the beginning of the heating season, the condensate trap be inspected for debris or blockage. A blocked condensate trap can cause water to back up into the primary heat exchanger and lead to nuisance tripping of the overtemperature switches. • IMPORTANT: It is recommended that at the beginning of the heating season, the condensate neutralizer if used be replaced by a qualified installer, service agency or the gas supplier. • IMPORTANT: It is recommended that an annual inspec- tion and cleaning of all furnace markings be made to as- sure legibility. Attach a replacement marking, which can be obtained through the distributor, if any are found to be illegible or missing. REPLACEMENT PARTS Information on replacement parts is located in the furnace user’s manual. TROUBLESHOOTING Refer to Figures 49 for determining cause of unit problems. WIRING DIAGRAM Figure 50 is a complete wiring diagram for the furnace and power sources. A wiring diagram is also available on the unit. SYSTEM OPERATION INFORMATION ADVISE THE CUSTOMER 1. Keep the air filters clean. The heating system will oper- ate better, more efficiently and more economically. 2. Arrange the furniture and drapes so that the supply air registers and the return air grilles are unobstructed. 3. Close doors and windows. This will reduce the heating load on the system. 4. Avoid excessive use of kitchen exhaust fans. 5. Do not permit the heat generated by television, lamps or radios to influence the thermostat operation. 6. Except for the mounting platform, keep all combustible articles 3 feet from the furnace and vent system. 7. IMPORTANT: Replace all blower doors and compart- ment covers after servicing the furnace. Do not oper- ate the unit without all panels and doors securely in place. 8. Explain proper operation of the system with constant air circulation to the owner or user. ! WARNING HOLES IN THE VENT PIPE OR HEAT EXCHANGER CAN CAUSE TOXIC FUMES TO ENTER THE HOME, RESULTING IN CARBON MONOXIDE POISONING OR DEATH. THE VENT PIPE OR HEAT EXCHANGER MUST BE REPLACED IF THEY LEAK. Maintenance

GO TO E NOTE: Always verify gas valve inlet and outlet gas pressure . KEY TO ABBREVIATIONS IBM = Indoor Blower Motor IDM = Induced Draft Motor IFC = Integrated Furnace Control PS = Pressure Switch(es) SE = Spark Electrode DSI = Direct-Spark Ignition FLAME (AMBER) LED CODES OFF = No Flame Present RAPID BLINK = Unexpected Flame SLOW BLINK = Marginal Flame Sense STEADY ON = Normal Flame Sense 1) Set FAN switch to “AUTO” 2) Set thermostat to call for heat (set temp. differ- ential to greater than 10 F Does the IDM Energize? IDM Runs for 30 sec. pre-purge ? Spark Ignitor Sparking? Does Main Burner Light and stay lit? Is the gas valve energized? PS dropping out? Check IFC* Does IBM start on heat speed 20 seconds after burners light ? Does main burner remain lit until heat call ends? Does thermostat maintain reasonable room temperature near setpoint ? Set thermostat to off position (W to C = ØV) Does gas valve shut off immediately? Does IDM shut off after ten second post-purge? Does IBM shut off after a max. of 3 min? END Heat-mode troubleshootin g “FAULT DISPLAYED ?” 24V on W to IFC? Check IFC*. Does IDM run indefinately . Does IDM Run for 60 sec. and then off for Five minutes - Check thermostat in “heat” mode, battery, wire, and connections. - Check PS contact s - Check wires for short. - Check IFC*. - Check switches and hoses for water or moistur e - For Twinned units, check that both IFCs are set for “TWIN” and wire s are connected between “TWIN” terminals . - Check IFC*. - For twinned units, ensure transformers are in phase. (if out of phase, flame LED will be dim) . - For non-twinned units, ensure “TWIN” is in the single (OFF) position. - For Twinned units – ensure both IFC‘s have same part number . - Check PS, PS Hoses, and wires. - Check for blocked vent, excessive vent length or elbows, or blocked heat exchanger. - Check IDM wired correctly . - Ensure against excessive wind, which can open pressure switch. - Check for intermittent P.S. operation. - Check switches and hoses for water or moisture. - Check gas supply and manifold pressure. - Ensure L1 and Neutral not swapped on IFC and junction box. - Check igniter alignment . - Check orifice or other restrictions to gas flow. - Check flame sense rod (clean with sandpaper). - Check flame carry over. - Check wires, continuity , and connection between IFC and gas valve. - Ensure 24 V between appropriate pins on connector of IFC. - Ensure manual switch on valve is in the “ON” position. - 90+ check aux. limit open? Should be closed - 90+ upflow models – check drain pressure switch between IFC and gas valve – should be closed – replace drain pressure switch if drain is not blocked or clear drain if blocked. - Did a pressure switch open during ignition trial? If yes, go to F - Did a limit open during ignition trial? If yes, go to D - Check line voltage between “HEAT” and “NEUTRAL” on IFC. - Check wires, connections, and continuity between IFC and IBM. - Check IBM capacitor . - Check IBM. CHECK: - grounding on IFC and unit. - check for proper polarity between L1 & neutral. - flame sense rod (clean if necessar y). - wire continually between flame sense rod and appropriate pin of connector on IFC - flame carries across all burners, and all burners stay lit. CHECK: AIRFLOW - ensure no restrictions, such as dirty filte r, dampers, closed registers, etc. LIMITS - ensure good wire and connections between IFC and all limits. Make sure limits are not open when circulating air temperature is within a specified range. ROLLOUTS - ensure rollouts or overtemperature limits do not need to be reset. Make sure no flame rollout in burner compartment due to blocked flu or heat exchanger. OVERFIRE - ensure furnace is not overtemperature (temp rise is above stated range) . Check gas valve, proper orifice size, gas pressure, etc. Is Limit circuit open or opening and closing? Note: IFC Status LED should be blinking a Fault Code. Is the IFC sensing a good flame: NOTE: Flame sense light should be steady-on when burners are lit. If flame LED blinking, or off, flame sense is low or absent. Ensure thermostat is properly placed and not improperly affected by registers, fans, sunlight, heat through walls, pipes, or wires in walls . - Check heat anticipator setting. Furnace may need an isolation relay. - Check installation instructions under section titled “Isolation Relay” for details . - Verify correct furnace sizing. NOTE: If IFC goes into lockout (“STATUS LED will blink code “1”), shut off main power to unit, wait 30 seconds and then reset power. PROBLEM STILL PRESENT Fault Code Present “FLAME” LED BLINKING OR STEADY ON If “E” did not resolve issue Double check - Is W off at IFC? (W to C = ØV?) Voltage present at gas valve? - Check gas valve. SEE FAULT CODES - Check IFC*. Check IFC*. *Most failures are not due to the IFC. Doubl e check all other possibilities, including the ground connection or wire connections, before replacing the IFC. Ensure TSTAT is not in “FAN” position. Is disply flashing a fault code Is “FLAME” LED blinking or steady-on ? **System will attempt to light 4 times. Voltage is present at gas valve for only 7 seconds dur- ing each trial for ignition. The entire system will go into a 1 hour lockout after 4 attempts. - Check line voltage at IDM. - Check wires and connections between IDM and IFC. - Ensure line voltage on IDM pins of IFC connector . - Check IDM capacitor (90+ only) . CHECK BLINK CODES - Check for open limit or limit circuit. - Check ignitor connected . - Check ignitor wires. - Check ignitor for fractures or cracking - Check ignitor placement . - If problem persists, check IFC*. START REPEAT THIS PROCEDURE UNTIL TROUBLE-FREE OPERATION IS OBTAINED. YES NO NO If “I ” did not resolve issue. NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES I D F H E G YES NO YES PREPURGE IGNITION TRIAL IBM “ON” DELAY STEADY HEAT END HEAT CALL POST-PURGE IBM “OFF” DELAY STEADY OFF NO ** ST-A1194-23-X0 GO TO F GO TO I WARNING HAZARDOUS VOLTAGE LINE VOLTAGE CONNECTIONS DISCONNECT POWER BEFORE SERVICING. SERVICE MUST BE BY A TRAINED, QUALIFIED SERVICE TECHNICIAN. NOTE: Always verify gas valve inlet and outlet gas pressure. INTEGRATED FURNACE CONTROL (IFC) TROUBLESHOOTING GUIDE NOTE: Most failures are not due to the IFC. Double check all othe r possibilities, including the ground connection, before replacing the IFC. “ATTEND TO FAULT” CODE DESCRIPTION O C H F 10 11 12 13 14 20 22 26 33 55 57 58 59 61 93 Standby Compressor on (cooling or heat pump heat) Gas heat on Continuous fan on 1 hour lockout Failed ignition Low flame sense Flame lost Unexpected flame Twinning fault Main limit open Line and neutral reversed Mrlc (man. Reset limit cont.)(aka roll-out open) Pres. Switch stuck closed, should be open Pres. Switch stuck open, should be closed Water Sensed Circuit Open Water Sensed Blower fault - blower unable to run Internal control fault BLOCKED DRAIN - (fault “59” should be present) 96