Crestron CHV-TSTAT - Page 18

Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Generalized Two Stage Heat Pump Schematic
TOP
HUM
RHU
RSR RSR
RS1 RS2 24(C)
24(R)
24V
Y
Z
G
NETWORK
RH RC G
Y/Y1 Y2
O
B
W/W1
W2
Fan Relay
1
st
Stage Compressor
2
nd
StageCompressor
Changeover Valve
Backplate
Heat Pump
Transformer
120 VAC 24 VAC
C
R
Aux Heat Relay
Aux Heat
Transformer
120 VAC
24 VAC
C
R
14 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163B