Wiring diagrams(cont.) – Carrier TP-NHP User Manual
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WIRING DIAGRAMS(cont.)
Thermostat
Fan Coil
O
RVS/Heat Stage 2
O/B W2
W3
Heat Stage 1
W/W1
W2
Compressor
Y/Y2
Not Used
Y1
Fan
G
G
24VAC Hot Heating
Rh
R
24VAC Hot Cooling
Rc
Dry Contact 1
D1
Dry Contact 2
D2
Aux. Connection
24VAC Common
C
COM
Outdoor Air Temp
OAT
Remote Room Sensor
RRS
OAT/RRS Com
OAT/RRS
Outdoor Sensor *
Remote Room
Sensor *
* Indicates connection may not be required/available.
A09156
Fig. 21 − Fan Coil shown with Auxiliary Connection #2
(Heat pump/air conditioner removed for clarity)