8
7 Wire, 24VAC Conventional 1 stage cooling,
2 stage heat, and 2 fan speeds
CD R Rc Y W G W2 Y2
High Fan Speed
2nd Stage Heat Circuit
Low Fan Speed
1st Stage Heat Circuit
Compressor Relay
24 VAC Power
24 VAC Common
1
Conventional Wiring Guide
Use 18 gauge unshielded
cable from thermostat to
the equipment.
1
For a Two Transformer System – remove jumper between R and Rc.
Connect the 24VAC power for energizing the unit’s Compressor to
thermostat’s (R) terminal. Connect second 24VAC power to
thermostat’s (Rc) terminal.