White Rodgers 1050 Installation Instructions Manual

9797 REAVIS RD., ST. LOUIS, MO. 63123 (314) 577-1300, FAX (314) 577-1517 9999 HWY. 48, MARKHAM, ONT. L3P 3J3 (905) 475-4653, FAX (905) 475-4625 Printed in U.S.A. PART NO. 37-1640B Replaces 37-1640, 37-9163, 37-9264 9620 FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. DESCRIPTION Operator: Save these instructions for future use! The Type 1050 Indoor-Outdoor Control is designed for use on conventional hot water heating systems where it is desired to vary boiler temperature according to outdoor weather condi- tions. These controls are not recommended for radiant panel installations because of the lower boiler temperatures required. Type 1050 has open-on-rise (SPST) switch action. This indoor-outdoor control increases or decreases frequency of burner operation to maintain a proper balance between boiler temperature and outdoor temperature. This control should always be used with a separate high limit control. For increased flexibility, this control has two simple adjustments that enable it to be set to meet the needs of almost any installation. The square dial is used to adjust the reset ratio from 1-1/2 to 1, up to 1 to 1-1/2. The round dial permits additional adjustment, if necessary, to raise or lower boiler water tempera- ture at all outdoor temperatures. INSTALLATION INSTRUCTIONS TYPE 1050 INDOOR - OUTDOOR HOT WATER TEMPERATURE CONTROL With Adjustable Reset Ratio THIS CONTROL MUST BE INSTALLED BY A QUALIFIED INSTALLER. Do not exceed the specification ratings. All wiring must conform to local and national electrical codes and ordinances. This control is a precision instrument, and should be handled carefully. Rough handling or distorting compo- nents could cause the control to malfunction. This control has been accurately calibrated at the factory. Any attempt to calibrate this control will void the White- Rodgers warranty. PRECAUTIONS WARNING To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete. Do not use on circuits exceeding specified volt- ages. Higher voltages will damage control and could cause shock or fire hazard. CAUTION SPECIFICATIONS ELECTRICAL DATA Switch Action: Open on Rise Switch Rating: S.P.S.T. 14F.L.A., 84L.R.A., 120V.A.C. 7F.L.A., 42L.R.A., 240V.A.C. 5.6A.,@ 25V, 120V.A.C. 2.8A.,@ 240V.A.C. THERMAL DATA Range:Outdoor Temp.- -20° to 70°F (-24° to 21°C) Boiler Temp.- 60° to 120°F (16° to 49°C) min. setting -100° to 250°F (38° to 121°C) max. setting Differential: - 10°F Fixed (5.5°C) Capillary Length: Outside - 30 Ft. (9 m) Inside - 15 Ft. (4.5 m) Bulb Size: Outside - 3/8" x 3-5/8" Inside - 7/16" x 3" for 1/2" NPT well WHITE-RODGERS

Both the outdoor bulb and inside bulb should be installed before the control case, since capillary lengths of these bulbs will normally determine the final location for the control case. A. INSTALLING THE OUTDOOR BULB: Locate the outdoor bulb so that it senses actual outdoor air temperature. Attach mounting bracket supplied with control to some convenient outside part of the building so that the outdoor bulb is: 1. Exposed to circulation of air and wind. 2. Shielded from rain, snow, and direct rays of sun. 3. Not close to false sources of heat such as dryer vents, exhaust fans, melting snow or ice, etc. 4. Sufficiently above ground to prevent tampering or being covered with snow, ice, or debris. B. INSTALLING THE WATER BULB: The water bulb should be installed in a hot section of the boiler. It should never be installed near a return inlet to the boiler. C. INSTALLING THE CONTROL CASE: The case of the Indoor-Outdoor Control should be installed as follows: 1. Install it on a vertical surface such as a wall or the side of a joist. 2. Do not install it on a heated surface such as on the boiler or a hot water pipe. 3. Install it high enough so that it will be convenient to make adjustments on round dial and large screw at bottom of case. 4. Install it so end of case with electrical outlet is on top. MOUNTING BRACKET OUTDOOR BULB CEILING ROOF The underside of the eaves or overhang of a NORTH or NORTHWEST roof is normally a good location. It should be exposed to the circulation of air and wind. INSTALLED HIGH ON WALL INSTALLED ON JOIST WIRING & OPERATION All wiring should be done in accordance with local and national electrical codes and ordinances. This indoor-outdoor control is designed to vary boiler temperature according to outdoor weather conditions. For this reason, it is recommended that this control only be used on systems where the domestic hot water supply is heated by a separate source from the heating boiler. The most common method for using an indoor-outdoor control is shown in the block diagram below, and in the wiring diagrams which follow. A separate high limit control should always be used with an indoor-outdoor control. HOT WATER BOILER INDOOR OUTDOOR CONTROL HIGH LIMIT CONTROL BURNER CIRCULATOR RELAY ROOM THERMOSTAT

THERM PILOT TRANS T T CONNECTIONS TO CIRCULATOR Circulator Operation 1. Unzoned Systems, or Circulator-Zoned Systems — The thermostat cycles the circulator motor (through a relay) to meet the demand for heating. 2. System Zoned with Water Valves – Auxiliary contacts of water valves cycle circulator motor (through a relay) to meet the demand for heating. (The circulator runs as long as any zone is calling for heat.) 1 2 L L TYPE 809 RELAY CIRCULATOR MOTOR LINE HOT N 1 2 L L TRANSFORMER HOT LINE N 4 5 6 4 5 6 4 5 6 4 5 6 4 5 6 1 2 3 4 5 2 6 1 2 3 4 5 2 6 1 2 3 4 5 2 6 1 2 3 4 5 2 6 1 2 3 4 5 2 6 ADDITIONAL ZONES TYPE 668 OIL BURNER CONTROL INDOOR OUTDOOR CONTROL HIGH LIMIT IGNITION TRANS. BURNER MOTOR N HOT LINE Using Oil burner control N HOT LINE HIGH LIMIT SAFETY PILOT TRANSFORMER 24V A.C. DIAPHRAGM GAS VALVE SAFETY PILOT LOW VOLTAGE GAS VALVE OR SOLENOID GAS VALVE INDOOR OUTDOOR CONTROL HIGH LIMIT 24V A.C. LINE N HOT TRANSFORMER Using Gas or Solenoid Gas Valve THERMOSTAT TYPE 809 RELAY FIELD INSTALLED JUMPER CIRCULATOR MOTOR HOT LINE N INDOOR OUTDOOR CONTROL For Unzoned Sytems, or Systems Zoned With Circulators For Systems Zoned With Water Valves All wiring should be done in accordance with local and national electrical codes and ordinances. BURNER CONNECTIONS Using diaphragm Gas Valve Burner Operation The indoor-outdoor control cycles the burner to vary boiler temperature to outdoor weather conditions.

A. SETTING THE ROUND DIAL: Set the round dial for “N” initially. This will enable minor additional adjustments to be made later if the specific instal- lation should require it (refer to “C”.) B. SETTING THE SQUARE DIAL: Select the proper square dial setting from table 1 or 2 below. For the majority of installations, the dial setting selected should provide satisfactory boiler operation without requiring any further dial adjustments. When required, additional adjustments may be made as explained in “C”. ROUND DIAL Adjusts comfort level required SQUARE DIAL Adjusts for heat-loss of specific installation OUTDOOR DESIGN SUGGESTED SQUARE DIAL SETTING TEMPERATURE 20°F (-7°C) 3 4.5 -- -- -- -- 10°F (-12°C) 2.5 3.5 5 -- -- -- 0°F (-17°C) 2 3 4 5 -- -- -10°F (-23°C) 1.5 2.5 3.5 4.5 5 -- -20°F (-29°C) 1 2 3 4 4.5 5 140 160 180 200 220 240 (60) (71) (82) (93) (104) (116) BOILER DESIGN TEMPERATURE °F (°C) Adjustment screw for changing setting of square dial Table 2 shows suggested square dial settings for various reset ratios. The first number of the reset ratio refers to the outdoor bulb, the second number refers to the inside bulb. For 1-1/2 to 1 ratio, for example, each 1-1/2°F drop in outdoor temperature will cause a 1°F increase in boiler water. Reset Ratio Suggested Square Dial Setting 1.5 to 1 1 1 to 1 2.5 1 to 1.5 4.5 C. ADDITIONAL ADJUSTMENTS: If, due to system variables such as heat loss of building, boiler size, etc., the square dial setting selected in “B” does not give desired boiler temperatures, additional adjustments may be made as follows: Round Dial – One division change in the round dial setting changes boiler water temperature about 5° at all outdoor temperatures. Square Dial – Changing the square dial setting 1/2 division (3 full revolutions of adjusting screw) changes boiler water temperature about 10° at low outdoor temperatures (0° to -20°) CONDITION SUGGESTED ADJUSTMENT Area too cool at low Raise square dial setting. outdoor temperatures. Area too warm at low Lower square dial setting. outdoor temperatures. Area too cool at all Raise round dial setting. (Also outdoor temperatures raise square dial setting if round dial has been set to “warmest” setting.) Area too warm at all Lower round dial setting. (Also outdoor temperatures lower square dial setting if necessary.)

D. ADDITIONAL INFORMATION: Charts 1, 2, and 3 show the effect which dial settings have upon boiler water temperature under varying outside air temperatures. Some examples of how these charts may be used are as follows: Example 1 (See Chart 1) – To determine boiler water tempera- ture for 10° outside air temperature and a #3 square dial setting, move up on 10° line until it intersects the heavy line for a #3 square dial setting. Then move horizontally to left and read water temperature of 150°. Example 2 (See Chart 1) – To determine square dial setting for desired boiler water temperature of 210° at -20° outside temperature, move up on -20° line to 210°. Since the heavy line for a #4 square dial setting intersects at this point, the square dial should be set at 4. Example 3 – Note the effect of changing setting of the round dial from “N” (Chart 1) to 4 divisions “warmer” than “N” (Chart 3). Water temperature has been increased 20° for all outside temperatures. -20 -29 -10 -23 0 -17 10 -12 20 -7 30 -1 40 4 50 10 60 16 70°F 21°C (27) 80 °C °F (38) 100 (49) 120 (60) 140 (71) 160 (82) 180 (93) 200 (104) 220 (116) 240 5 4 3 2 1 N 1 2 3 4 5 Chart 1 — Round Dial Set at “N” -20 -29 -10 -23 0 -17 10 -12 20 -7 30 -1 40 4 50 10 60 16 70°F 21°C (27) 80 °C °F (38) 100 (49) 120 (60) 140 (71) 160 (82) 180 (93) 200 (104) 220 (116) 240 1 2 3 4 5 N 5 4 3 2 1 -20 -29 -10 -23 0 -17 10 -12 20 -7 30 -1 40 4 50 10 60 16 70°F 21°C (27) 80 °C °F (38) 100 (49) 120 (60) 140 (71) 160 (82) 180 (93) 200 (104) 220 (116) 240 5 4 3 2 1 N 1 2 3 4 5 (127) 260 Chart 2 — Round Dial Set 2 divisions “COOLER” than “N”. Chart 3 — Round Dial Set 4 divisions “WARMER” than “N”.