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18-GJ06D2-2A
Figure 2. Field Wiring — Single Stage HP
Com for t Control
Air Handler
Heat P um p
Neatly bundle all low voltage
wires behind the service valve
cover as shown.
Field wiring
Yellow
Blue
Black
(X2)
Red
Orange
Red
Yellow
Orange
Green
White
Blue
B
B - Blue
W
X2
G
Y1
Y1 - Yellow
R
O
O
R
B
YI
Y2
W1
YO
BK
G
W2
W3 *
R - Red
O - Orange
(In)
(Out)
W1 - White
• * For multiple stages of electric heat, jumper W1, W2, and W3 together if control has only one stage of heat.
• Yi and Y0 connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly.
OD unit pump down may occur if these connections are not made correctly.
• Internally mounted condensate switch is optional and must be ordered separately.
• If 3rd party condensate overflow switches are installed, they should be wired between Y of the thermostat and Y1 of the Airflow control.
EElleeccttrriiccaall —— LLooww VVoollttaaggee
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