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Page 13
WCY-G FIELD WIRING DIAGRAM
Thermostat System Switch until power has been applied long
enough to evaporate any liquid R-22 in the compressor. It is
recommended that the sump heater be energized for eight (8) hours
prior to starting.
After all electrical wiring is complete, set the thermostat system
switch in the OFF position so that the compressor will not run
and then apply power by closing the system main disconnect switch.
This will activate the compressor sump heat. Do not change the
From Dwg. 756978 Rev. 5
NOTES:
1. FUSED DISCONNECT SIZE, POWER WIRING AND
GROUNDING OF EQUIPMENT MUST COMPLY WITH
CODES.
2. BE SURE POWER SUPPLY AGREES WITH
EQUIPMENT AND HEATER NAMEPLATE.
3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM
CONDUCTOR.
4. SEE HEATER NAMEPLATE FOR CURRENT RATING
OF HEATER USED.
5. SEE UNIT AND HEATER DIAGRAM FOR
ELECTRICAL CONNECTION DETAILS.
6. IF ELECTRIC HEATER ACCESSORY IS NOT
INSTALLED OMIT THE ELECTRIC HEATER,
ASSOCIATED POWER WIRES AND THE ‘W’ AND ‘X2’
THERMOSTAT WIRES.
7. FIG. 3 DEMONSTRATES CONNECTION OF THE
OUTDOOR THERMOSTAT ACCESSORY ONLY. FOR
FURTHER UNIT CONNECTION DETAILS REFER TO
THE OTHER FIGURES.
8. THE 41A(BR) WIRE IS FIRST STAGE ELECTRIC
HEAT. IF THE ELECTRIC HEATER ACCESSORY
HAS TWO HEATING STAGES THE 41C(BR) WIRE IS
SECOND STAGE ELECTRIC HEAT.
9. WHEN THE BAYECON054A OR –055A ECONOMIZER
IS INSTALLED THE BAYRLAY003 RELAY
ACCESSORY KIT IS REQUIRED TO INTERFACE
THE ECONOMIZER TO THE HEAT PUMP FOR
PROPER SYSTEM OPERATION. WHEN THE
BAYECON054B OR –055B OR 073A ECONOMIZER IS
INSTALLED, THE BAYRLAY004A RELAY
ACCESSORY KIT IS REQUIRED TO INTERFACE
THE ECONOMIZER TO THE HEAT PUMP FOR
PROPER SYSTEM OPERATION.
10. THE BAYSTAT033A OUTDOOR THERMOSTAT
ACCESSORY KIT CONTAINS A THERMOSTAT AND
A RELAY. THE RELAY IS NOT REQUIRED TO BE
USED IN THIS APPLICATION.
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