Top
E/AUX
DH
ON
Bottom
1 2
Top
E/AUX
DH
ON
Bottom
1 2
Top
E/AUX
DH
ON
Bottom
1 2
Top
E/AUX
DH
ON
Bottom
1 2
Green = Used Terminal
G
Y/Y2
B
W
W1
W2
OFF
Thermostat
Y/Y2
Y1
Diagram Grey = White Wire
G
C
R
B
W
W1
OFF
O/B
Grey = Unused Terminal
Y2
Y1
CN6
CN9
CN10
CN11
Air Handler Data Transfer Circuit Board
L
Y1
W2
CN11
CN6
CN9
CN10
R
C
Air Handler Data Transfer Circuit Board
Wiring For 3H and 1C - Two Stage Auxiliary Heat
W1/E
Grey = Unused Terminal
O/B
Y
Diagram Grey = White Wire
G
C
W2
Green = Used Terminal
R
Thermostat
R
C
L
G
Wiring For 2H and 2C - No Auxiliary Heat
Wiring For 3H and 2C - With Auxiliary Heat
W1/E
Grey = Unused Terminal
O/B
Green = Used Terminal
Y2
Diagram Grey = White Wire
W1
W2
OFF
CN6
CN9
CN10
CN11
Y1
G
C
R
Thermostat
R
C
L
G
Y2
Diagram Grey = White Wire
Y1
G
C
R
Thermostat
Air Handler Data Transfer Circuit Board
Wiring For 4H and 2C - Recommended Method
W2
Grey = Unused Terminal
O/B
Green = Used Terminal
W1/E
W2
OFF
CN6
CN9
CN10
CN11
Air Handler Data Transfer Circuit Board
If S4-1 DIP Switch Is Off,
Insert Jumper
R
C
L
G
Y1
Y/Y2
B
W
W1
Y1
Y/Y2
B
W