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22 Pub. No. 22-1847-03
Two Stage Cooling
Field
Wiring
Comfort Control
Air Handler
Air Conditioner
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Yellow/Red
Field wiring
Yellow/Black
Blue
Red
Yellow
Green
White
Blue
B
B - Blue
W
G
Y1
Brown
Y2
Y1 - Yellow
Y2 - Brown
R
O
O
R
B
YI
W1
YO
Y2
BK
G
W2
W3 *
(In)
(Out)
• * For multiple stages of electric heat, jumper W1, W2, and W3 together if comfort control has only one stage of heat.
• YI and YO connections must be made as shown for freeze protection and internally mounted condensate overflow circuits to work properly.
• Internally mounted condensate switch is optional and must be ordered separately.
• If 3rd party condensate overflow switches are installed, they should be wired in series between YO and Y to the outdoor unit.