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TYPICAL ROOFTOP INSTALLATION WITH FULL PERIMETER CURBS
(WCY024-060G Models)
GENERAL INFORMATION
IMPORTANT: Read this entire manual before beginning instal-
lation procedures.
SAFETY NOTICE. THIS INFORMATION IS INTENDED FOR
USE BY INDIVIDUALS POSSESSING ADEQUATE BACK-
GROUNDS OF ELECTRICAL AND MECHANICAL EXPERI-
ENCE. ANY ATTEMPT TO REPAIR A CENTRAL AIR CONDI-
TIONING PRODUCT MAY RESULT IN PERSONAL INJURY
AND/OR PROPERTY DAMAGE. THE MANUFACTURER OR
SELLER CANNOT BE RESPONSIBLE FOR THE INTERPRE-
TATION OF THIS INFORMATION, NOR CAN IT ASSUME
LIABILITY IN CONNECTION WITH ITS USE.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
IMPORTANT: 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 ORIGI-
NAL 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
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.
INSPECTION
1. 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.
1
ROOF INSULATION
ROOF DECK
FIELD SUPPLIED
RIGID INSULATION
SUPPLY AIR
DUCT
RETURN AIR
DUCT
ROOF MOUNTING
CURB
FIELD SUPPLIED
CANT STRIP
FIELD SUPPLIE
D
SUPPORTS
AT EACH END
OF CURB
ROOFING