Carrier 30XV140-500 Manuals

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300200-01 Printed in U.S.A. Form 30XV-9SI Pg 1 9-17 Replaces: New Installation Instructions Part No.: 30XV70000701 CONTENTS Page SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Package Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Configuration (All Sizes) . . . . . . . . . . . . . . . . . . . . . . . . . 5 Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 • 4 TO 20 mA • SPACE TEMPERATURE Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 • 4 TO 20 mA • SWITCH CONTROLLED Additional EMM Functions . . . . . . . . . . . . . . . . . . . . . . . 6 • INPUTS • OUTPUTS SAFETY CONSIDERATIONS Installation of this accessory can be hazardous due to sys- tem pressures, electrical components, and equipment location (such as a roof or elevated structure). Only trained, qualified installers and service technicians should install, start up, and service this equipment. When installing this accessory, observe precautions in the literature, labels attached to the equipment, and any other safety precautions that apply. • Follow all safety codes. • Wear safety glasses and work gloves. • Use care in handling and installing this accessory. GENERAL The standard Touch Pilot™ controls software provided on all 30XV chillers is programmed to accept various options to modify the unit operation. The Energy Management Module (EMM) board is required for 4 to 20 mA, 2 or 3-step demand limit control, chilled water temperature reset by space tempera- ture or 4 to 20 mA, and Ice Mode. Chilled water temperature reset by return water or cooler delta T does not require the addi- tion of this accessory. See Table 1 for EMM functions. The fol- lowing functions are available with the EMM board: • Chilled Water Temperature Reset — Resets the chilled water set point under less than full load capacity condi- tions by the following methods: — 4 to 20 mA Input: A field-supplied signal generator and 1/2-watt, 250-ohm resistor are required. — Space Temperature: A field-supplied space tempera- ture sensor is required. • Demand Limit — Limits the capacity of the machine from unit capacity by the following methods: — 4 to 20 mA Input: A field-supplied signal generator and 1/2-watt, 250-ohm resistor are required. — 2 or 3-Step Switch Control: A field-supplied dry con- tact switch is required (One-Step Demand Limit does not require the EMM board). • Occupancy Override — Extends the occupied period for machine operation. A field-supplied dry contact switch is required. • Remote Chiller Lockout — Disables the chiller when closed. A field-supplied dry contact switch is required. • Ice Done Control Switch — Signals the machine to exit the Ice Build mode and enter an unoccupied time period. A field-supplied dry contact switch is required. The following status functions are available with the EMM board: • Capacity Output Signal — A 0 to10 vdc analog output signal indicating chiller capacity is available. • Shutdown Status Relay — A 24 vac output signal indi- cating that the machine is shutting down. • Alert Relay — A 24 vac output signal indicating the unit has an active alert. • Compressor Run Status — A 24 vac output signal (one for compressor A, one for compressor B), indicating the compressor is on. The EMM board can be configured with the Touch Pilot module. Table 1 — EMM Functions by Unit Package Contents — Examine the package contents for correct part numbers. Refer to Table 2 for package con- tents and usage. If any of the components are damaged, file a claim with the shipping company and notify your Carrier representative. WARNING Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation. There may be more than one disconnect switch. Tag all discon- nect locations to alert others not to restore power until work is completed. INPUT/OUTPUT INPUTS Demand Limit, 2 or 3-Step Demand Limit, 4-20 mA Ice Done Occupancy Override Space Temperature Thermistor Remote Chiller Lockout Temperature Reset, 4-20 mA Signal Temperature Set Point, 4-20 mA Signal OUTPUTS Alert Relay Compressor A Run Status Compressor B Run Status Shutdown Status Relay Total Capacity Output, 0-10 vdc 30XV140-500 Energy Management Module Accessory 2 Table 2 — 30XV Accessory Package Contents and Usage *Terminal Block (TB6) is included in wiring harness assembly for P/Ns 30XV50074001 and 30XV50074101. INSTALLATION 1. Disconnect unit power. Follow proper lockout-tagout procedures. 2. Locate the control panel enclosure. See Fig. 1 and 2 for control panel layout and location for installation of EMM board and TB6. See Table 3 for main base board location. 3. Install EMM board in the location shown in Fig. 1 (30XV140-325) or Fig. 2 (30XV350-500) using the screws included in the accessory package. 4. See Table 4 for TB6 mounting tools and location. Install TB6 in the location shown in Fig. 1 (30XV140-325) or Fig. 2 (30XV350-500) using the screws included in the accessory package. TB6 should have harness already at- tached as shown in Table 5. Correct connections should be verified. 5. Install circuit breaker CB5 in the hole on the display mounting bracket. See Fig. 1 and 2 for location. Locate the accessory-supplied wiring harness 30XV50074001 (30XV140-325) or 30XV50074101 (30XV350-500) and install 2-pin power plug labeled EMM-J1 on the EMM board terminal J1. Connect the 2 red wires labeled CB5 to the installed CB5 circuit breaker. Run red wires labeled TB11-X1 and brown wires labeled TB11-X2 to the termi- nal blocks with matching labels. 6. Also, the red (+), black (-) and white (G) wires labeled TBC should be connected to the appropriate terminals with matching labels. See Fig. 3. Locate the plug labeled EMM-J9B in the accessory-supplied wiring harness and connect it to the EMM board. 7. Each of the remaining accessory-supplied EMM board wiring harness connectors labeled J2A, J3, J4, J5, J6, J7A and J7B should be connected to their respective connec- tors on the EMM board. Table 3 — 30XV Main Base Board Location Table 4 — 30XV TB6 Installation DESCRIPTION PART NO. QTY USED ON 140-325 350-500 ENERGY MANAGEMENT BOARD 00PSN500038300A 1 X X TERMINAL BLOCK (TB6) 30XV50074301* 1 X X WIRING HARNESSES 30XV50074001 1 X 30XV50074101 1 X TERMINAL BLOCK MOUNTING SCREWS, NO. 8 A6X10004352 3 X X EMM BOARD MOUNTING SCREWS 8-32 X 0.38 IN. LONG AC41AB100 6 X X CIRCUIT BREAKER CB5 HH83ZB010 1 X X UNIT SIZE VOLTAGE MAIN BASE BOARD LOCATION 140-325 ALL Behind left door of powerbox on end of the chiller, mounting location on lower right of the low voltage backpanel 350-500 ALL Behind the center door of the powerbox on end of the chiller, mounting location on the fixed bracket in the low voltage section VOLTAGE MOUNTING TOOLS AND LOCATION SEE FIG. NO. ALL Locate terminal block TB5 in the low voltage section of the powerbox (upper left door for 30XV140-325 units and top middle door for 30XV350-500 units). Using the accessory- supplied mounting screws, mount terminal block TB6 to the open spot on the bracket below TB5. 1, 2 3 Table 5 — EMM Board Wiring UNIT WIRING HARNESS EMM BOARD CONNECTION LOCATION WIRE COLOR MBB CONNECTION LOCATION 30XV140-325 (All Voltages) 30XV50074001 EMM-J4-1 BLUE TB6-12 EMM-J4-2 BLUE TB6-13 EMM-J4-3 RED TB6-14 EMM-J4-4 RED TB6-15 EMM-J4-5 VIOLET TB6-5 EMM-J4-6 VIOLET TB6-6 EMM-J4-7 GRAY TB6-9 EMM-J4-8 GRAY TB6-10 EMM-J8-2 GREEN TB6-17 EMM-J8-1 BLACK TB6-16 EMM-J3-4 BLACK TB6-18 EMM-J3-3 RED TB6-19 EMM-J3-2 BLACK TB6-20 EMM-J3-1 RED TB6-21 EMM-J2A-5 BLACK TB6-22 EMM-J2A-6 RED TB6-23 EMM-J2A-7 BLACK TB6-24 EMM-J2A-8 RED TB6-25 EMM-J5-9 RED EMM-J5-10 EMM-J6-6 ORANGE TB6-8 EMM-J6-5 ORANGE TB6-7 EMM-J7B-2 ORANGE TB6-1 EMM-J7B-3 BLACK TB6-2 EMM-J7A-2 ORANGE TB6-3 EMM-J7A-3 BLACK TB6-4 30XV350-500 (All Voltages) 30XV50074101 EMM-J4-1 BLUE TB6-12 EMM-J4-2 BLUE TB6-13 EMM-J4-3 RED TB6-14 EMM-J4-4 RED TB6-15 EMM-J4-5 VIOLET TB6-5 EMM-J4-6 VIOLET TB6-6 EMM-J4-7 GRAY TB6-9 EMM-J4-8 GRAY TB6-10 EMM-J8-2 GREEN TB6-17 EMM-J8-1 BLACK TB6-16 EMM-J3-4 BLACK TB6-18 EMM-J3-3 RED TB6-19 EMM-J3-2 BLACK TB6-20 EMM-J3-1 RED TB6-21 EMM-J2A-5 BLACK TB6-22 EMM-J2A-6 RED TB6-23 EMM-J2A-7 BLACK TB6-24 EMM-J2A-8 RED TB6-25 EMM-J5-9 RED EMM-J5-10 EMM-J6-6 ORANGE TB6-8 EMM-J6-5 ORANGE TB6-7 EMM-J7B-2 ORANGE TB6-1 EMM-J7B-3 BLACK TB6-2 EMM-J7A-2 ORANGE TB6-3 EMM-J7A-3 BLACK TB6-4 4 CB5 TB6 EMM TBC TB11 Fig. 1 — Component Layout — 30XV 140-325 Units CB5 LOCATION TB6 EMM TBC TB11 Fig. 2 — Component Layout — 30XV 350-500 Units

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300179-01 Printed in U.S.A. Form 30XV-4SI Pg 1 6-17 Replaces: New Installation Instructions Part No. 30XV70000501, 30XV70000601 SAFETY CONSIDERATIONS Installing, starting up, and servicing air-conditioning equip- ment can be hazardous due to system pressures, electrical com- ponents, and equipment locations. Only trained, qualified installers and service technicians should install, start up, and service this equipment. When installing this accessory, observe precautions in the literature and on any labels attached to the equipment, and all other safety precautions that may apply. • Follow all safety codes. • Wear safety glasses and work gloves. • Use care in handling and installing this accessory. INTRODUCTION The accessory condenser hail guard is designed to protect the 30XV chillers from harsh weather conditions and debris. See Table 1 for accessory package usage and see Table 2 for accessory package contents. Check each item for shipping damage. If any damage is found, file a claim with the shipping agent immediately. If any item is missing or if any part does not assemble properly, notify your Carrier representative. Field-Supplied Material — Zinc-rich paint. Table 1 — 30XV Accessory Package Usage *Standard, medium, or high tier is represented by an S, M, or H in the 10th position of the unit model number. CAUTION To avoid the possibility of electrical shock, open and tag all disconnects before installing this equipment. Be aware that there may be more than one disconnect. CAUTION Only trained, qualified installers and service technicians should install, start up, and service this equipment. Untrained personnel can perform basic maintenance func- tions such as cleaning coils. All other operations should be performed by trained service personnel. When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment. CAUTION To avoid damage to the refrigerant coils and electrical com- ponents, use extreme care when drilling screw holes and screwing in fasteners. 30XV UNIT SIZE AND TIER* NO. OF PACKAGE(S) REQUIRED FOR ACCESSORY PART NO. 30XV70000501 30XV70000601 140-Std 1 0 140-Mid 1 0 140-High 1 1 160-Std 1 0 160-Mid 1 1 160-High 1 2 180-Std 1 0 180-Mid 1 1 180-High 1 2 200-Std 1 1 200-Mid 1 2 200-High 1 3 225-Std 1 1 225-Mid 1 2 225-High 1 3 250-Std 1 2 250-Mid 1 3 250-High 1 4 275-Std 1 2 275-Mid 1 3 275-High 1 4 300-Std 1 3 300-Mid 1 4 300-High 1 5 325-Std 1 4 325-Mid 1 5 325-High 1 6 350-Std 1 4 350-Mid 1 5 350-High 1 6 400-Std 1 5 400-Mid 1 6 400-High 1 7 450-Std 1 6 450-Mid 1 7 450-High 1 8 500-Std 1 7 500-Mid 1 8 30XV140-500 Hail Guard Accessory 2 Table 2 — Accessory Contents INSTALLATION NOTE: Numbers in parentheses are item numbers unless indicated. NOTE: Not all panels in kit will be used for every unit size. 1. Disconnect all power to unit. 2. Attach side uprights (1) between each V section on both sides of unit. Use 2 screws at the top and 2 at the bottom of each upright. See Fig. 1. 3. Attach side channel assemblies (2 and 3) horizontally be- tween uprights (1) on sides of chiller. Use channel assem- bly (3) on the end sections and channel assembly (2) in the other locations. Use 4 screws, 2 on each end of each side channel assembly. See Fig. 2. 4. Attach the end channel assembly (4) horizontally to the end of the unit opposite the control box. Use 4 screws, 2 on each end of the end channel assembly. See Fig. 3. ACCESSORY PART NO. DESCRIPTION ITEM NO. QTY 30XV70000601 Side Upright, 30XV50061901 1 6 Side Channel Assembly, 30XV40042601 2 4 Side Channel Assembly, 30XV40042501 3 4 End Channel Assembly, 30XV40036701 4 1 Control Box Angle Support, 30XV40036801 5 1 Control Box Angle Support, 30XV40036901 6 1 Louvered Side End Panel, 30XV50062101 7 4 Louvered Side End Panel, 30XV50062103 8 4 Louvered Side Panel, 30XV50062001 9 4 Louvered Side Panel, 30XV50062002 10 4 Louvered End Panel, 30XV50037601 11 2 Louvered End Panel, 30XV50037602 12 2 End Wire Guard, 30XV50036802 13 1 Louvered End Panel, 30XV50037301 14 1 Louvered End Panel, 30XV50037401 15 1 Louvered End Panel, 30XV50037501 16 1 Screws, 00PPN500000304A 17 284 30XV70000701 Side Upright, 30XV50061901 1 2 Side Channel Assembly, 30XV40042601 2 2 Louvered Side Panel, 30XV50062001 9 2 Louvered Side Panel, 30XV50062002 10 2 Screws, 00PPN500000304A 17 80 IMPORTANT: Hail guard accessory is designed for installa- tion after unit is installed. The upright and lower panels will block the lifting points for the chiller. Fig. 1 — Side Uprights A30-6314 SIDE UPRIGHTS A30-6318 Fig. 2 — Side Channel Assemblies SIDE END CHANNEL ASSEMBLIES SIDE CHANNEL ASSEMBLIES Fig. 3 — End Channel Assembly END CHANNEL ASSEMBLY A30-6319 a30-3619 3 5. Attach the control box angle support to the control box. See Fig. 4. NOTE: Use angle (5) and 2 screws for unit sizes 140 to 200 and angle (6) and 4 screws for unit sizes 225 to 325. Neither support is required for unit sizes 350 to 500. 6. Attach side end panels (7 and 8) to sides of the unit near- est the end at 4 corners using one screw at each clearance hole in each panel. See Fig. 5. NOTE: Item 7 is the top panel and Item 8 is the bottom panel. 7. Attach side panels (9 and 10) to each side of the unit to cover the area between the side end grilles. Use one screw at each clearance hole in each panel. See Fig. 6. NOTE: Item 9 is the top panel and Item 10 is the lower panel. 8. Attach end panels (11 and 12) and end wire guard (13) to the end of unit (opposite the control box). Attach panels with one screw at each clearance hole in each panel. Place screws between grille rods that are spaced closely togeth- er. See Fig. 7. Unit Sizes 140 to 200 a30- 6320 CONTROL BOX ANGLE SUPPORT Fig. 4 — Angle Supports Unit Sizes 225 to 325 a30-6321 CONTROL BOX ANGLE SUPPORT A30-6321 Fig. 5 — Side End Panels A30-6396 SIDE END CHANNEL ASSEMBLIES SIDE CHANNEL ASSEMBLIES Fig. 6 — Side Panels SIDE PANELS A30-6318 A30-6397 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300179-01 Printed in U.S.A. Form 30XV-4SI Pg 4 6-17 Replaces: New © Carrier Corporation 2017 NOTE: Item 11 is the top panel and Item 12 is the lower panel. 9. Piping may exit through the end grille or side grille de- pending on the unit. Cut grille rods as required to provide opening for water lines. Coat ends of cut rods with zinc- rich paint to protect against rust. 10. Attach end panel(s) to the control box end of unit using one screw at each clearance hole in each panel. See Fig. 8. NOTE: Use panel 14 for unit sizes 140 to 200 and panels 15 and 16 for unit sizes 225 to 325. Neither panel is re- quired for unit sizes 350 to 500. NOTE: Item 15 is the top panel and Item 16 is the bottom panel. 11. When all panels are installed and properly fastened, re- store power to unit. Fig. 7 — Louvered End Panels and End Wire Guard A30-6398 LOUVERED END PANELS END WIRE GUARD Fig. 8 — Louvered End Panel 30XV140-325 CONTROL BOX END PANEL(S)

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300198-01 Printed in U.S.A. Form 30XV-7SI Pg 1 1-19 Replaces: 30XV-6SI Installation Instructions CONTENTS Page SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Step 1 — Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . 3 Step 2 — Place, Mount and Rig the Unit . . . . . . . . . 3 • PLACING UNIT • MOUNTING UNIT • EXPORT SHIPPING RAILS • RIGGING UNIT Step 3 — Make Refrigerant, Evaporator Fluid and Drain Piping Connections . . . . . . . . . . . . . . . . 90 • SPLIT UNIT ASSEMBLY • GENERAL • EVAPORATOR PUMP CONTROL • PREPARATION FOR YEAR-ROUND OPERATION Step 4 — Fill the Chilled Water Loop . . . . . . . . . . . 100 • WATER SYSTEM CLEANING • WATER TREATMENT • SYSTEM PRESSURIZATION • FILLING THE SYSTEM • SET WATER FLOW RATE • FREEZE PROTECTION • PREPARATION FOR WINTER SHUTDOWN Step 5 — Make Electrical Connections . . . . . . . . . 102 • POWER SUPPLY • FIELD POWER CONNECTIONS • POWER WIRING • FIELD CONTROL POWER CONNECTIONS • CARRIER COMFORT NETWORK® COMMUNICATION BUS WIRING • BACNET IP OR ETHERNET COMMUNICATION • NON-CCN COMMUNICATION WIRING • FIELD CONTROL OPTION WIRING • DUAL CHILLER LEAVING WATER SENSOR Step 6 — Install Accessories . . . . . . . . . . . . . . . . . . . 127 • ENERGY MANAGEMENT MODULE • UNIT SECURITY/PROTECTION ACCESSORIES • COMMUNICATION ACCESSORIES • SERVICE OPTIONS Step 7 — Leak Test Unit. . . . . . . . . . . . . . . . . . . . . . . . 127 • DEHYDRATION • REFRIGERANT CHARGE SAFETY CONSIDERATIONS Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment. Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precau- tions in the literature, tags and labels attached to the unit, and other safety precautions that may apply. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire extin- guisher available for all brazing operations. WARNING Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation and ser- vice. There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed. WARNING Electrical shock can cause personal injury and death. After unit power is disconnected, wait at least 20 minutes for the VFD (variable frequency drive) capacitors to discharge before opening drive. WARNING DO NOT VENT refrigerant relief valves within a building. Outlet from relief valves must be vented in accordance with the latest edition of ANSI/ASHRAE (American National Standards Institute/American Society of Heating, Refrigerating and Air-Conditioning Engineers) 15 (Safety Code for Mechanical Refrigeration). The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation. Provide adequate ventilation in enclosed or low overhead areas. Inhalation of high concen- trations of vapor is harmful and may cause heart irregulari- ties, unconsciousness or death. Misuse can be fatal. Vapor is heavier than air and reduces the amount of oxygen avail- able for breathing. Product causes eye and skin irritation. Decomposition products are hazardous. AquaForce® 30XV140-500 Variable Speed Air-Cooled Liquid Chillers with Greenspeed® Intelligence 2 WARNING DO NOT USE TORCH to remove any component. System contains oil and refrigerant under pressure. To remove a component, wear protective gloves and gog- gles and proceed as follows: a. Shut off electrical power to unit. b. Recover refrigerant to relieve all pressure from sys- tem using both high-pressure and low pressure ports. c. Traces of vapor should be displaced with nitrogen and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases. d. Cut component connection tubing with tubing cutter and remove component from unit. Use a pan to catch any oil that may come out of the lines and as a gage for how much oil to add to the system. e. Carefully unsweat remaining tubing stubs when nec- essary. Oil can ignite when exposed to torch flame. Failure to follow these procedures may result in personal injury or death. CAUTION Standard Tier units (units with S in the 10th position of the model number) without condenser fan VFDs (units with “-”, “1”, “3”, or “5” in the 13th position of the model number) must have the condenser fan(s) rotation verified to ensure proper phasing. Correct rotation is counter-clockwise (reference arrow on fan cap). Swap any two incoming power leads to correct condenser fan rotation before starting chiller. Operating the unit with- out testing the condenser fan(s) for proper phasing could result in equipment damage. CAUTION DO NOT re-use compressor oil or any oil that has been exposed to the atmosphere. Dispose of oil per local codes and regulations. DO NOT leave refrigerant system open to air any longer than the actual time required to service the equipment. Seal circuits being serviced and charge with dry nitrogen to prevent oil contamination when timely repairs cannot be completed. Failure to follow these proce- dures may result in damage to equipment. CAUTION This unit uses a microprocessor control system. Do not short or jumper between terminations on circuit boards or modules; control or board failure may result. Be aware of electrostatic discharge (static electricity) when handling or making contact with circuit boards or module connections. Always touch a chassis (grounded) part to dis- sipate body electrostatic charge before working inside con- trol center. Use extreme care when handling tools near boards and when connecting or disconnecting terminal plugs. Circuit boards can easily be damaged. Always hold boards by the edges and avoid touching components and connections. This equipment uses, and can radiate, radio frequency energy. If not installed and used in accordance with the instruction manual, it may cause interference to radio com- munications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Inter- national Standard in North America EN 61000-2/3 which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference. Always store and transport replacement or defective boards in anti-static shipping bag. CAUTION To prevent potential damage to heat exchanger tubes, always run fluid through heat exchanger when adding or removing refrigerant charge. Use appropriate antifreeze solutions in evaporator fluid loop to prevent the freezing of heat exchanger or interconnecting piping when the equip- ment is exposed to temperatures below 32°F (0°C). Proof of flow switch is factory installed on all models. Do NOT remove power from this chiller during winter shut down periods without taking precaution to remove all water from heat exchanger. Failure to properly protect the system from freezing may constitute abuse and may void warranty. IMPORTANT: (Unit sizes 30XV140-325) If the com- pressor VFD enclosure is removed for service, it must be reinstalled to protect the drive from water intrusion. Failure to reinstall the compressor VFD enclosure may constitute abuse and may void warranty. 3 INTRODUCTION These instructions cover installation of 30XV140-500 air- cooled liquid chillers with Greenspeed® intelligence and elec- tronic controls, and units with factory-installed options (FIOPs). See Fig. 1. INSTALLATION Storage — If the unit is to be stored for a period of time be- fore installation or start-up, be sure to protect the machine from construction dirt. Keep protective shipping covers in place until the machine is ready for installation. Follow these storage guidelines: • Store the unit in a clean and dry location. • Avoid contamination. • Maintain storage temperature of –13 to 149°F (–25 to 65°C). • Before applying power, perform complete physical inspection. Check for carbon deposits inside drive, burned or damaged components, and blown fuses. • The unit can be stored for 3 years maximum without power. If the unit is stored for long periods of time with- out use, special procedures must be performed to ensure the safe and efficient operation of the VFD capacitor banks. If the unit has been stored for more than 3 years without power applied to the drives, contact Carrier Ser- vice to obtain information and instructions for reforming the capacitor banks. • Perform a static test before applying power. • Ensure a proper operating environment before applying power: clean and dry; 5 to 100% humidity, non-condens- ing; maximum temperature 126°F (52°C). If the tem- perature is below 14°F (–10°C), the drive must be started with 50% load for 10 minutes. • When removing from storage, apply power for 3 to 4 hours to exercise capacitors. Step 1 — Inspect Shipment — Inspect unit for dam- age upon arrival. If damage is found, immediately file a claim with the shipping company, and contact your local Carrier representative. Step 2 — Place, Mount, and Rig the Unit — When considering a location for the unit, be sure to consult NEC (National Electrical Code, U.S.A.) and/or local code requirements. Allow sufficient space for airflow, wiring, pip- ing, and service. See Fig. 2-22. NOTE: To facilitate refrigerant vent piping, all units have fus- ible plugs with 1/4 in. SAE (Society of Automotive Engineers) flares and pressure reliefs with 3/4 in. NPT and 3/8 in. SAE flare fittings (if required by local codes). PLACING UNIT — Locate the unit so that the condenser airflow is unrestricted both above and on the sides of the unit. Airflow and service clearances are 6 ft (1.8 m) around the unit. Acceptable clearance on the sides or ends without control boxes or VFDs can be reduced to 3 ft (1 m) without sacrificing performance as long as the remaining three sides are unrestricted. Acceptable clearance on the side with a control box or VFD can be reduced to 4 ft (1.3 m) due to NEC regulations, without sacrificing performance as long as the remaining three sides are unrestricted. Provide ample room for servicing and removing the evaporator. See Fig. 2- 20 for required clearances. Local codes for clearances take precedence over the manufacturer’s recommendations when local codes call for greater clearances. If multiple units are installed at the same site, a minimum sepa- ration of 10 ft (3 m) between the sides of the machines is required to maintain proper airflow and minimize the chances of condenser air recirculation. MOUNTING UNIT — The unit may be mounted on a level pad directly on the base rails, on a raised mounting rail around the unit, or on vibration isolation springs. For all units, ensure placement area is strong enough to support unit operating weight. See Table 1. Mounting holes are pro- vided for securing the unit to the pad, mounting rail or vi- bration isolation springs. Bolt the unit securely to pad or rails. If vibration isolators (field-supplied) are required for a particular installation, refer to unit weight distribution in Fig. 23 to aid in the proper selection of isolators. Once in- stalled, the unit must be level to within 1/8-in. per ft (1 cm per meter) along the long axis of the unit. This is required for oil return to the compressor(s). For more details about physical data, see Tables 2 and 3. NOTE: For units that are point loaded, such as those using rub- ber and shear isolators, the base rail must be supported with a 24 x 4 in. (610 x 102 mm) plate at each mounting location, or base rail deflection may result. Fasten the unit to the plates using the mounting holes.