G,F Fan Fan G
Y,Y1 1st stage 1st stage cooling Y1
heating/cooling
Y2 2nd stage 2nd stage cooling Y2
heating/cooling
W,W1 1st stage heating O
W2 2nd stage heating W
W (on CLM products) 3rd stage heating W
O reversing valve O
W (on CLM products) emergency heat W
humidifier humidifier D/H (note 1)
DH (on CLM products) ClimaDry D/H (note 2)
dehumidifier dehumidifier D/H (note 2)
dry contact dry contact CK1 (note 3)
R,Rh,M,Vr,A power power R
C common common C
Installation Instructions
2
Wire Connections
If the terminal designations on your old thermostat do not match those on the
new thermostat, refer to the chart below or the wiring diagrams that follow.
Note 1 : set the AUX USE (setup step #29) to humidifier. Also, set the HUM WITH HEAT ONLY
(setup step #34) as required
Note 2 : set the AUX USE (setup step #29) to dehumidifier. Also, set the DEHUM WITH COOL ONLY
(setup step #34) as required
Note 3 : external device should switch CK1 to R to enable the function specified in DRY CONTACT USE
(setup step #26), default = FDD
Wire from the old
thermostat terminal
possibly marked
Function
(Heatpump)
Function
(Gas/Electric)
Install on
the new
thermostat
connector
marked
To Next Page
Loading...
