Wiring Diagram Conversions - ICM Controls SC 2811 Installation, Operation & Application Manual

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Carrier Split Stream Condensers and Heat Pump Systems
Note 1: E terminal on PCB capped
Note 2: L terminal on PCB capped
24 VAC, return
R
24 VAC, common
C
Reversing valve (cooling mode)
O
Compressor contactor
Y
2nd stage heating circuit
W2
Fan contactor circuit
G
Emergency heating circuit
E
System monitor LED
L
W3
0

Wiring Diagram Conversions

2811 Electronic Thermostat Conversion to:
®
SC 281 1
Electronic Thermostat
W1
R C Y1 W2 Y2
O/B
(capped)
(capped)
G W3