7
-C GY2W2Y1W1+R
McQUAY DUAL CIRCUIT
Mark IV Board Circuit 1
Low Voltage Terminal Board
Mark IV Board Circuit 2
Low Voltage Terminal Board
ELECTRONIC THERMOSTAT
O
Override (Optional)
W
2
G W
1
Y
1
F E L U A P V +
R
-
C
O
W
2
G W
1
Y
1
F E L U A P V +
R
-
C
O
