Crestron chv-tstat and chv-thstat thermostats, Generalized two stage heat pump schematic – Crestron electronic CHV-THSTAT User Manual
Page 17
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Crestron CHV-TSTAT and CHV-THSTAT
Thermostats
Generalized Two Stage Heat Pump Schematic
TOP
HUM
RH
U
RS
R
RS
R
RS
1
RS
2
24
(C
)
24(
R
)
24
V
Y
Z
G
NETWORK
RH
RC
G
Y/Y
1
Y2
O
B
W/
W
1
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
Operations and Installation Guide – DOC. 8163A
Thermostats: CHV-TSTAT and CHV-THSTAT
• 13
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