18-GJ06D2-2E-EN
37
Figure 4.
Field Wiring — Two Stage HP
Com for t Control
Air Handler
Heat P u m p
Neatly bundle
a ll lo w vo lta g e
wires behind t
h e s e rvice va lve
co ve r a s s h o w n .
Ye llo w /Re d
Field wiring
Ye llo w
Blue
Blac k
(X2)
Re d
Ora n g e
Re d
Ye llo w
Orange
Green
White
Blue
B
B - Blue
W
X2
G
Y1
Brown
Y2
Y1 - Ye llo w
Y2 - Brown
R
O
O
R
B
YI
W1
YO
Y2
BK
G
W2
W3 *
R - Re d
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.
E
Elle
ec
cttrriic
ca
all —
— L
Lo
ow
w V
Vo
olltta
ag
ge
e