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Air Handler Hook-up Diagram
Cooling
Blue
Yellow
Comfort Control
Air Handler
Air Conditioner
Field wiring
Red
Yellow
Green
White
Blue
Yellow
Green
White
Blue
B
W
G
Y
R
Red
O
Orange
Red
Orange
Blue
Yellow
YI
Purple
YO
Green
W2 Pink
W3 Brown
W1 White *
STEP 5
- Using field supplied wire nuts, make connections
per hookup diagrams.
• * For multiple stages of electric heat, jumper W1, W2, and W3 together if comfort control has only one stage of heat.
• ** Red to Orange wire connection must be made as shown for cooling only, non-heat pump systems for proper operation.
• YI and YO connections must be made as shown for proper operations, 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 between Y of the thermostat and YI of the EEV control.
