ICM Controls SC 2311 - Lennox CB19 Conversion

17
SimpleComfort
®
2311 Electronic Thermostat Conversion to:
Lennox CB19 Heat Pump Systems
SC 2311
Electronic Thermostat
R C
W1
O/B
Y W2 E G
24 VAC, return
24 VAC, common
Reversing valve (cooling mode)
Compressor contactor
2nd stage heating circuit
Fan contactor circuit
Emergency heating circuit
System monitor LED
(capped)
Note 1: L terminal on PCB capped
R
C
O
Y
W1
G
E
L
Lennox CB19
Low Voltage Terminal Board