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WCY-IOM-1D
INSTALLATION
18-BB33D8-5
OPERATION
MAINTENANCE
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
Model:
WCY024G1 Single Package Heat Pump
WCY030G1
WCY036G1 13-14 SEER Convertible
BAYLIFT002A
WCY042G1
LIFTING LUG KIT
WCY048G1 2 - 5 Ton
WCY060G1
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
N
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GENERAL INFORMATION IMPORTANT: Read this entire manual before beginning instal- Read this manual carefully before attempting to install, operate, or lation procedures. perform maintenance on this unit. Installation and maintenance should be performed by qualified service technicians only. SAFETY NOTICE. THIS INFORMATION IS INTENDED FOR USE BY INDIVIDUALS POSSESSING ADEQUATE BACK- NOTE: "Warnings" and "Cautions" appear at appropriate GROUNDS OF ELECTRICAL AND MECHANICAL EXPERI- places in
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TYPICAL ROOFTOP INSTALLATION WITH BAYCURB030A 2 (WCY024-060G Models) SEE NOTE 1 SEE NOTE 2 FIELD SUPPLIED SUPPORTS AT EACH END OF CURB ROOFING ROOF INSULATION FIELD SUPPLIED CANT STRIP ROOF DECK FIELD SUPPLIED RIGID INSULATION ROOF MOUNTING NOTE 1: The WCY036-042G Models extend CURB out past this end of the curb only. SUPPLY AIR RETURN AIR NOTE 2: Only the WCY048-060G Models DUCT DUCT extend past both the end and the side of the curb as illustrated CONVERTING HORIZONTAL TO DOWNFLOW 3 NOTE SUPPLY
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DIMENSIONAL DATA WCY024-060G OUTLINE - BACK 4 CORNER WEIGHT(LBS) UNIT MODEL AB C D E F G H J K L M N P WEIGHT W1 W2 W3 W4 WCY024G 79 74 74 104 331 21 25-3/8 56-1/2 36 29-3/16 18-9/16 11-1/16 6-9/16 6-13/16 17 17-1/2 10 3 4-7/16 WCY030G 82 64 86 110 342 21 24-3/8 WCY036G 110 82 88 118 398 19-1/4 27-1/2 64 36 29-1/16 18-9/16 11-1/16 6-9/16 11-1/8 17 17-1/2 10 3 8-3/4 WCY042G 110 82 88 118 398 19-1/4 27-1/2 WCY048G 149 104 117 134 504 24-1/4 28-1/2 65-1/8 45 33-1/8 21-1/16 15-1/16 4-15/16 9-1/8 2
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DIMENSIONAL DATA WCY024-060G OUTLINE - FRONT 5 CLEARANCE TO RECOMMENDED SERVICE CLEARANCE COMBUSTIBLE MATERIAL BACK * 6.0" BOTTOM 0.0" LEFT SIDE 30.0" BACK 1.0" RIGHT SIDE 24.0" LEFT SIDE 6.0" FRONT SIDE 30.0" RIGHT SIDE 6.0" * 18" WITH FRESH AIR ACCESSORY FRONT SIDE 12.0" * 30" WITH ECONOMIZER TOP 36.0" MODEL A B C D WCY024G 56-1/2 36 29-3/16 12-15/16 WCY030G WCO36G 64 36 29-3/16 14-1/2 WCY042G WCY048G 65-1/8 45 33-3/8 14-13/16 WCY060G From Dwg. 21D664 Page 5
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REQUIRED CLEARANCE FOR UNIT INSTALLATION AND ROOF PENETRATION HOLE SIZE REQUIRED 6 D A SERVICE SERVICE CLEARANCE CLEARANCE LINES LINES SUPPLY AIR B RETURN AIR C SIDE RAIL WOOD NAILER SERVICE CLEARANCE & PENETRATION DIMENSIONS HOLE IN ROOF MODEL NO. A B C D E F WCY024-030G 30" 30" *12" 24" 36" 25" WCY036-042G 30" 30" *12" 30" 44" 25" E WCY048-060G 42" 30" *12" 36" 50" 25" F * 18" WITH FRESH AIR ACCESSORY * 30" WITH ECONOMIZER LOCATIONS AND RECOMMENDATIONS These units are designed for outdoo
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11. Access and service clearances for the unit must be given careful 3. For “Roof Top Application,” unit must be elevated above roof with consideration when locating the duct entrance openings. Fig- a mounting Curb or Frame. ures 6 and 8 provide unit dimensions. 4. Exhaust vents or other sources of contaminated air should not be 12. All fabricated outdoor ducts should be as short as possible. near unit air inlet if outside air is to be introduced as a make-up air or the economizer ventilation
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7 SPREADER BARS OUTDOOR COIL END OF UNIT BASE OF UNIT DRIP LIP ON REST ON TOP OF PERIMETER OF UNIT CURB RAILS “B” UNIT CORNER DRIP LIP BAYLIFT002A LIFTING LUGS DIMPLE CURB CORNER SEE DETAIL “A” GASKET SEAL “A” NOTE: The inner perimeter of the Drip Lip on all units should be flush with the outer perimeter of the curb on the two sides shown here. See Figure 2 for the location of the unit overhang on the WCY036-060G Models with BAYCURB030A. 8 EXISTING SHEET METAL SCREW HOLD-DOWN BRACKET WITH
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INSTALLATION ROOFTOP -- UNITS 4. Place the unit on the frame or roof curb. Refer to Figures 9 or For roof top applications using a field fabricated frame and ducts, 10. use the following procedure: 5. Secure the unit to the frame or roof curb. 1. The frame must be located and secured by bolting or welding to the roof. Flashing is required. 6. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a 2. The hole in th
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INSTALLATION GROUND LEVEL -- HORIZONTAL UNITS 2. Attach the supply and return air ducts to the unit. For ground level installations, the unit should be positioned on a pad the size of the unit or larger. The unit must be level on the pad. The 3. Insulate any ductwork outside of the structure with at least 2 pad must not come in contact with the structure (See Figure 11.) Be inches of insulation and weatherproof. There must be a weath- sure the outdoor portion of the supply and return air d
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DUCT ATTACHMENT METHODS w AIR PROOF AIR PROOF THIS SEAM THIS SEAM UNIT BASE UNIT BASE UNIT EXTERIOR FIELD DUCT FIELD WEATHERPROOF DUCT THIS SEAM UNIT DUCT UNIT DUCT UNIT DUCT FLANGE FLANGE FLANGE FIELD DUCT UNIT BASE AIR PROOF UNIT EXTERIOR THIS SEAM UNIT DUCT UNIT DUCT FLANGE FLANGE WATERPROOF SEAM UNIT DUCT WITH BUTYL OR WEATHERPROOF UNIT BASE FLANGE SILICONE THIS SEAM NOT RECOMMENDED FIELD DUCT FIELD DUCT FIELD DUCT DOWNFLOW UNIT EXTERIOR The following warning complies with State of Califo
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FILTER INSTALLATION TABLE 1 AIR FILTERS NOMINAL FILTER* FILTER UNIT CFM (Sq Ft) SIZE RESISTANCE Filters are to be used with the WCY024-060G heating/cooling WCY024G 800 2.67 0.05 units. The basic unit does not have filters in it. However, a filter frame accessory is offered that will allow filters to be installed WCY030G 1000 3.33 0.05 within the unit. WCY036G 1200 4.00 0.05 WCY042G 1400 4.67 0.05 Otherwise a filter rack must be installed by the installer in the WCY048G 1600 5.33 0.05 duct work
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After all electrical wiring is complete, set the thermostat system Thermostat System Switch until power has been applied long switch in the OFF position so that the compressor will not run enough to evaporate any liquid R-22 in the compressor. It is and then apply power by closing the system main disconnect switch. recommended that the sump heater be energized for eight (8) hours This will activate the compressor sump heat. Do not change the prior to starting. WCY-G FIELD WIRING DIAGRAM r NOT
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START - UP PRE-START QUICK CHECKLIST To start the unit in the cooling mode, set the thermostat system ● Is the unit properly located and level with the proper clearance? switch to COOL and move the thermostat COOL indicator to a See Figure 5. setting below room temperature. The condenser (outdoor) fan motor compressor and evaporator (indoor) fan motor will operate ● Is the duct work correctly sized, run, taped, insulated, and automatically. weatherproofed with proper unit arrangement. See Duct
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SEQUENCE OF OPERATION GENERAL Operation of the unit heating and cooling cycles is automatic for thermostat. When placed in the emergency heat position, it will HEAT and COOL functions. (The optional automatic changeover disable the compressor, bypass the outdoor thermostats, if pro- thermostat, when in the AUTO position, automatically changes to vided, and engage the supplementary electric heaters and indoor heat or cool with sufficient room temperature change.) The fan fan. switch can be placed
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DEMAND DEFROST SYSTEM DEFROST CONTROL PIN IDENTIFICATION The demand defrost control measures heat pump outdoor ambient FRC_DFT temperature with a sensor located outside the outdoor coil. A second sensor located on the outdoor coil is used to measure the coil temperature. The difference between the ambient and the colder coil temperature is the difference or delta-T measurement. This delta-T measurement is representative of the operating state and relative capacity of the heat pump system. By
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DEMAND DEFROST CONTROL CHECKOUT SYMPTOMS CHECKS YES/NO ACTIONS 1. LED off. N Repair low voltage wiring. 1. 24V R-B & Y-B at board, with unit running? Y Complete Check #2. N Replace defrost control. 2.Short FRC_DFT pin to TEST_COMMON pin. Is defrost cycle initiated? Y LED is bad but control will still function. 2. LED flashing very rapidly (greater Y Remove short. than 4 times/sec) or appears to be on TEST_COMMON pin shorted to TST pin? continuously. N Replace defrost control. 3. Control does
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MAINTENANCE MAINTENANCE PERFORMED BY SERVICEMAN-- ROUTINE MAINTENANCE BY OWNER HEATING SEASON You can do some of the periodic maintenance functions for your WCY-G unit yourself; this includes replacing the dispos- Complete the unit inspections and service routines described below able or cleaning the permanent air filters, cleaning the unit at the beginning of each heating season. cabinet, clearing the condenser coil, and conducting a general unit inspection on a regular basis. ● Visually inspe
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LIMITED WARRANTY HIGH EFFICIENCY HEAT PUMP WCZ, WCY AND WCX Models Less Than 20 Tons for Residential Use* (Parts Only) This limited warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Heat Pump is originally affixed, and applies to products purchased and retained for use within the U.S.A. and Canada. If any part of your Heat Pump fails because of a manufacturing defect within five years from the date of the origi
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LIMITED WARRANTY HIGH EFFICIENCY HEAT PUMP WCZ, WCY, WCX, WCC, WCD, WCH, WCM AND WSC Models Less Than 20 Tons for Commercial Use* (Parts Only) This warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Heat Pump is originally affixed, and applies to products purchased and retained for use within the U.S.A. and Canada. There is no warranty against corrosion, erosion or deterioration. If any part of your Heat Pump f
