36
18-GJ06D2-2A
Figure 4. Field Wiring — Two Stage HP
Com fort Control
Air Handler
Heat P ump
Neatly bundle all low voltage
wires behind t he service valve
cover as shown.
Yellow/Red
Field wiring
Yellow
Blue
Black
(X2)
Red
Orange
Red
Yellow
Orange
Green
White
Blue
B
B - Blue
W
X2
G
Y1
Brown
Y2
Y1 - Yellow
Y2 - Brown
R
O
O
R
B
YI
W1
YO
Y2
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.
5. Secure the sheathed wiring to the control pocket mounting plate using the factory supplied wire ties attached to the tabs as shown.
EElleeccttrriiccaall —— LLooww VVoollttaaggee
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