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Heat/Cool Thermostat:
R = 24VAC
G1 = Whisper Mode (Cont. Fan On)
G2 = Fan Speed 2 (Medium Speed)
G3 = Fan Speed 3 (High Speed)
Y = Cooling
O/B = Heating
C = Common
26
Power
Cable
Entrance
Notch For
Optional Front
Low Voltage
Control Wire
Entrance
R
G1 G2
ECM w/ Whisper Mode
Factory 6-Wire Thermostat
Harness Whip
Thermostat Wiring Detail
OMEGA-VSHYe.F-IOM-2108
Low Voltage
Control Wire
Entrance
G3
Y O/B C
Factory supplied 6-
wire thermostat cable
shown. Whisper
Mode standard on
VSHYe units. Jumper
between R and G1
(factory installed).
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