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WTS32 Wireless Thermostat
950-0160revB February 2, 2012
15
Wiring Schematics for Heat Pump Systems - 2 stage cooling / 3 stage heating
IMPORTANT!
– If using a Heat Pump
System with fossil fuel as AUX Heat,
an external fossil fuel kit or outdoor
sensor must be installed and
CONFIGURATION STEP 11
(STAGES) must be set to CO.
COMPRESSOR 1
EMER
HEAT(AUX )
COMPRESSOR 2
S1
S2
OUTDOOR SENSER
(P/N 435-0012)
Receiver
(Controller )
O
B
G
Y2
Y1
W2
E/W1
NC
R
C
24 VAC
FAN RELAY
REVERSING VALVE