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INSTALLATION OPERATION MAINTENANCEALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
WCC-IOM-1C 18-BB33D1-4Library Product Section Product Model Literature Type Sequence Date File No. Supercedes Service Literature Unitary Packaged Heat Pump WCC Installation,Operation,Maintence 1C NOVEMBER 2001 SV-UN-RT-WCC-IOM-1C 11/01 WCC-IOM-1B
Model: WCC018F1 WCC024F1 WCC030F1 WCC036F1,3,4 WCC042F1,3 WCC048F1,3,4 WCC060F1,3,4 BAYLIFT002AA LIFTING LUG KIT
Single Package Heat Pump Convertible 1-1/2 - 5 Ton
IMPORTANT This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.
WARNING: HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the installation must conform with National Electric Code -- ANSI/NFPA 70 or 'LATEST REVISION.'
2001 American Standard Inc. All rights reserved
GENERAL INFORMATIONIMPORTANT: Read this entire manual before beginning installation procedures. SAFETY NOTICE. THIS INFORMATION IS INTENDED FOR USE BY INDIVIDUALS POSSESSING ADEQUATE BACKGROUNDS OF ELECTRICAL AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO REPAIR A CENTRAL AIR CONDITIONING PRODUCT MAY RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE. THE MANUFACTURER OR SELLER CANNOT BE RESPONSIBLE FOR THE INTERPRETATION OF THIS INFORMATION, NOR CAN IT ASSUME LIABILITY IN CONNECTION WITH ITS USE. Read this manual carefully before attempting to install, operate, or perform maintenance on this unit. Installation and maintenance should be performed by qualified service technicians only.
NOTE: 'Warnings' and 'Cautions' appear at appropriate places in this manual. Your personal safety and the proper operation of this air conditioning product require that you follow them carefully. The manufacturer assumes no liability for installations or servicing performed by unqualified personnel.
INSPECTION1. Check for damage after the unit is unloaded. Report promptly, to the carrier, any damage found to the unit. Do not drop the unit. IMPORTANT: The use of 'spreader bars' is required when hoisting the unit ( to prevent damage to sides and top ). 2. Check the unit's nameplate to determine if the unit is correct for the intended application. The power supply must be adequate for both the unit and all accessories. 3. Check to be sure the refrigerant charge has been retained during shipment. Access to 1/4' flare pressure taps may be gained by removing the furnace compartment access panel.
WARNING: HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICINGIMPORTANT: RECONNECT ALL GROUNDING DEVICES. ALL PARTS OF THIS PRODUCT CAPABLE OF CONDUCTING ELECTICAL CURRENT ARE GROUNDED. IF GROUNDING WIRES, SCREWS, STRAPS, CLIPS NUTS OR WASHERS USED TO COMPLETE A PATH TO GROUND ARE REMOVED FOR SERVICE. THEY MUST BE RETURNED TO THIER ORIGINAL POSITION AND PROPERLY FASTENED. IMPORTANT: ALL POWER LEGS MAY NOT BE BROKEN BY CONTACTORS. SEE WIRING DIAGRAM ON UNIT CONTROL BOX COVER. BEFORE STARTING THE COMPRESSOR, THE CRANKCASE HEATER SHOULD BE ENERGIZED FOR EIGHT HOURS
TYPICAL ROOFTOP INSTALLATION WITH FULL PERIMETER CURBS (WCC018-060F Models)
FIELD SUPPLIED SUPPORTS AT EACH END OF CURB ROOFING ROOF INSULATION FIELD SUPPLIED CANT STRIP ROOF DECK FIELD SUPPLIED RIGID INSULATION ROOF MOUNTING CURB SUPPLY AIR DUCT
RETURN AIR DUCT
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TYPICAL ROOFTOP INSTALLATION WITH BAYCURB030A (WCC018-060F Models)
SEE NOTE 1
SEE NOTE 2
FIELD SUPPLIED SUPPORTS AT EACH END OF CURB ROOF INSULATION ROOFING FIELD SUPPLIED CANT STRIP ROOF DECK FIELD SUPPLIED RIGID INSULATION
SEE NOTE 1
ROOF MOUNTING CURB
NOTE 1: Only the WCC048, 060F Models extend past both the end and the side of the curb as illustrated
SUPPLY AIR DUCT
RETURN AIR DUCT
CONVERTING HORIZONTAL TO DOWNFLOW
NOTE SUPPLY OPENING 1. REMOVE THE SCREW NEAREST TO THE OPENING AND PULL THE PANEL FIRMLY TOWARD THE OUTSIDE OF THE UNIT TO DISENGAGE THE BACK ATTACHMENT. RETURN OPENING 2. REMOVE RIGHT HAND SCREW AND MOVE PANEL TO THE RIGHT OR REMOVE BOTH SCREWS.
SHEET METAL SCREWS HORIZONTAL SUPPLY AIR COVER
HORIZONTAL RETURN AIR COVER
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DIMENSIONAL DATA
WCC018-060F OUTLINE - BACK
CORNER WEIGHT (LBS)
MODELW1WCC018F WCC024F WCC030F WCC036F WCC042F WCC048F WCC060F 66 77 97 94 126 131
UNIT WEIGHT
A
B
C
D
E
F
G
H
J
K
L
M
N
P
W255 65 76 73 104 108
W372 89 85 80 127 132
W487 105 108 104 153 159 280 336 366 351 511 529 64-5/16 45 33-3/8 21-1/16 15-1/16 4-15/16 9-1/8 21-15/16 55-1/4 36 29-3/16 18-9/16 11-1/16 6-9/16 6-13/16 17 55-1/4 36 25-3/16 18-9/16 11-1/16 6-9/16 6-13/16 17 21-5/16 25-1/2 17-1/2 10 3 4-7/16
20-13/16 25-5/16 19 18-13/16 24-5/8 24-5/8 24-3/16 24 28-1/2 28-1/2 20 14 3-1/2 8-5/16 17-1/2 10 3 4-7/16
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DIMENSIONAL DATA
WCC018-060F OUTLINE - FRONT
729945
RECOMMENDED SERVICE CLEARANCE BACK LEFT SIDE RIGHT SIDE FRONT SIDE * 152 MM [6.0'] 762 MM [30.0'] 610 MM [24.0'] 762 MM [30.0']
*457 MM [18'] WITH FRESH AIR ACCESSORY *762 MM [30'] WITH ECONOMIZER
MODELWCC018F WCC024F WCC030F WCC036F WCC042F WCC048F WCC060F
A55-1/4 55-1/4 64-5/16
B36 36 45
C25 3/16 29-3/16 33-3/8
D12-15/16 12-15/16 14-13/16
E4-3/8 4-7/8 4-7/8
FKNOCKOUTS FOR 1/2' AND1' CONDUIT KNOCKOUTS FOR 3/4' AND1-1/4' CONDUIT KNOCKOUTS FOR 3/4' AND1-1/2' CONDUIT
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REQUIRED CLEARANCE FOR UNIT INSTALLATION AND ROOF PENETRATION HOLE SIZE REQUIRED
Trane 4tee Installation Manual 2017
D ASERVICE CLEARANCE LINES SERVICE CLEARANCE LINES
SUPPLY AIR
CSIDE RAIL
RETURN AIR
B
WOOD NAILER
SERVICE CLEARANCE & PENETRATION DIMENSIONS MODEL NO. WCC018-42F WCC048-060F A 30' 42' B C D E 36' 50' F 25' 25'
Trane 4tee Installation Manual Transfer Switch
HOLE IN ROOF
30' *12' 24' 30' *12' 36'
* 18' WITH FRESH AIR ACCESSORY * 30' WITH ECONOMIZER * 20' WITH WCC042,048,060
E
F
LOCATIONS AND RECOMMENDATIONSThese units are designed for outdoor installation. For proper installation, the following recommendations must be considered.
Trane 4tee Installation Manual Garage Door Opener
NOTE: Unit shipped for horizontal installation. Convert to downflow per instruction.The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. Roof Mounting Curb (field assembled BAYCURB030A/038A and BAYCURB034A) or a field fabricated curb must be in place before unit is hoisted to the roof. Roof Mounting Curb (frame) must be installed on a flat, level section of the roof (max. of 1/4' per foot pitch), providing a level mounting surface for the unit. In addition, provide sufficient height above the roof to prevent water from entering unit. In locations where deep snows are encountered,RAlSE THE UNlT A MINIMUM OF 12' OFF THE ROOF, DECK OR SLABthe chance of the coil being blocked with snow will be reduced. The water that occurs during the defrost has a better chance of flowing from the vicinity of the unit. Roof Mounting Curb used with WCCF models is approximately 14' high. This is normally sufficient height to prevent snow blockage and additional clearance is not necessary.
AVOID LOCATING THE UNIT WHERE SNOW TENDS TO DRIFT. This will reduce the times when it is necessary for the customer to remove the snow from around the unit. MAKE CERTAIN THE CUSTOMER KNOWS THAT SNOW ACCUMULATIONS SHOULD BE REMOVED FROM THE SIDES OF THE UNIT FOR BEST EFFICIENCY. A snow drift barrier may be installed around the unit to prevent a build up of snow on the sides of the unit. The barrier should be of sufficient distance from the unit to prevent restriction of airflow to and from unit. LOCATE THE UNIT SO THAT THE WATER VAPOR THAT DISCHARGES UPWARD DURING DEFROST DOES NOT CONDENSE ON WINDOWS AND FOG THEM OR CAUSE ICICLES TO FORM ON OVERHANGS. 1. Be sure the mounting curb spans structural members (trusses) of the roof, thereby providing sufficient support for weight of the unit, curb and duct(s) plus any accessories (factory or field installed). See Figures 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11 and 12.
NOTE: If any internal accessories are to be added to the unit it should be done at the shop if at all practical.2. Unit should be positioned so Roof-Run-Off water does not pour directly on unit.
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Trane 4twr4 Manual
3. For Roof Top Application, unit must be elevated above roof with a mounting Curb or Frame. 4. Exhaust vents or other sources of contaminated air should not be near unit air inlet if outside air is to be introduced as a makeup air or the economizer ventilation feature is to be used. 5. Check the handling facilities to insure the safety of personnel and the unit(s). 6. CAUTION MUST BE TAKEN AT ALL TIMES TO AVOID PERSONAL INJURIES AND/OR DAMAGE TO EQUIPMENT. 7. The unit must be mounted level for proper drainage of defrost water through the holes in the base pan. 8. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 9. Roof flashing must be installed to seal the roof curb cavity and must conform to local building codes. 10. Holes through exterior walls must be sealed in accordance with local codes.
11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. Figures 6 and 8 provide unit dimensions. 12. All fabricated outdoor ducts should be as short as possible. 13. Be sure the hole in the structure for the ducts is large enough to accommodate the fabricated ducts and the insulation surrou