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5 Wire, 24VAC Conventional 1 stage cooling with
1 stage heat
Fan Circuit
Heat Circuit
Compressor Relay
24 VAC Power
24 VAC Common
Use 18 gauge unshielded
cable from thermostat to
the equipment.
For a Two Transformer System – remove jumper between R and Rc.
1
Connect the 24VAC power for energizing the unit's Compressor to
thermostat's (R) terminal. Connect second 24VAC power to
4
thermostat's (Rc) terminal.
Conventional Wiring Guide
D
C
R Rc Y W G W
1
Y
2
2
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