Proliphix IMT Series Installation Manual page 9

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Table 2 Terminal Conversion Chart (Continued)
HVAC
Terminal
G
a
The 24VAC common must be in the same AC phase as the 24VAC source (RH or RC). If the
thermostat is connected to RH only, or RH and RC then C must be the RH common. If the
thermostat is connected to RC only then C must be the RC common.
b
The RVS is either activate for heat (B terminal) or activate for cool (O terminal). You can
program this function on the relay output through the web interface and the LCD screens. Consult
your HVAC installer about the RVS type for your heat pump.
c
Provides stage 1 heat or cool depending on the activation of the RVS.
d
Provides stage 2 heat or cool depending on the activation of the RVS.
Figure 1
yellow) Fuel Burner HVAC system connecting to an IMT base plate.
Figure 1 Single/Dual Stage Fuel Burner HVAC Connections
The wiring colors shown above are examples of commonly used colors and may
differ depending on the HVAC wiring that is used.
Note
Proliphix Internet Managed Thermostat (IMT) Installation Guide, Release 1.0
Part No. 600-03100-000, Rev. 2
Single Stage
Fuel Burner
Fan
shows an example of a single-stage (shown in blue) and dual-stage (shown in
1
C RH W1
Common
1st Stage
Heat Control
24VAC
Source
Installing and Wiring the Thermostat
Dual Stage Single Stage
Fuel Burner Heat Pump
Fan Fan
IMT Base Plate
W2 Y1
1st Stage
2nd Stage
Cool Control
Heat Control
HVAC System
Dual Stage
Heat Pump
Fan
Y2 G
Fan
2nd Stage
Cool Control Control
5