Beta Draft Confidential
8 Proliphix Internet Managed Thermostat (IMT) Installation Guide
Part No. 600-03100-000, Rev. 4
Installing and Wiring the Thermostat
Figure 4 shows an example of a dual-stage Heat Pump HVAC system, with reverse
activate for heat/cool, connecting to an IMT base plate.
Figure 4 Dual-Stage Heat Pump HVAC Connections
The second compressor wire is not present in a single-stage heat pump.
Common
Fan
Reverse for
Heat/Cool
(Dual/Stage)
W2
RH Y1 GC
HVAC System
Y2
Auxiliary Heat
24VAC
Source
2nd stage
Compressor
IMT Base Plate
W1
1st stage
Compressor
Fan
The wiring colors shown above are examples of commonly used colors and may
differ depending on the HVAC wiring that is used.
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