ICM Controls SC2000L - Heat Pump and Cool Only Systems

10
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
HOT
120 VAC 24 VAC
Transformer Transformer
HOT
120 VAC 24 VAC
Transformer
HOT
120 VAC 24 VAC
Compressor
Contactor
Fan
Relay
Reversing
Valve
Compressor
Contactor
Fan
Relay
Reversing
Valve
Cooling
Control
Fan
Control
Cool Active
Reversing Valve
Heat Active
Reversing Valve
3-Wire,
Single Transformer
Note: Place jumper between “W” and “Y” terminals.
Place heat pump jumper to HP position.
Note: Millivolt system may require a
transformer and/or an isolation
relay to operate properly
Cool OnlyHeat Pump
SC2000
Pre-Installed Jumper
RH RC
Pre-Installed Jumper
RH RC
Pre-Installed Jumper
RH RC