Installation Guide
PG 4
PG 4
PG 5
Find the step-by-step diagram for your system
• Select the referenece 
page with your wiring 
diagram and set-up 
information below.
• The C-wire is optional but 
prefered for all installations 
[shown dotted in diagrams].  
Some radio modules will 
require the 24VAC C-wire 
power.
• If your combination of 
wires is not above you can 
use the wiring table at the 
end if the install section to 
determine your connections, 
contact customer support 
for help.
G
C W Y RH RC G
5 Wire
Heat/Cool
From
Furnace
RC
C
Y
RH
W
C W Y RH G 
4 Wire 
Heat/Cool
From
Furnace
G
C
Y
RH
W
C W RH G 
3 Wire 
Heat
From
Furnace
C
RH
G
W
From
Furnace
C
W
C W RH 
RH
2 Wire 
Heat
From
Furnace
W
RH
A
W RH A
3 Wire 
Zoned
Hot Water
WIRES
WIRES
WIRES
WIRES
WIRES
G
R
H
C W2 W Y Y2 R
H
 G
2 stage Cool
2 stage Heat
From
Furnace
Y
2
C
W
Y
W
2
C B
 or 
O W
2
 Y R
H
 G
5 Wire 
 Heat Pump
 w/ Aux Heat
From
Furnace
R
H
C
O
or
W2
B
G
Y
G
C B
 or 
O Y R
H
 G
4 Wire Heat Pump
w/o Aux Heat
From
Furnace
RH
C
O
or
Y
B
WIRES
WIRES
WIRES
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