McQuay LIA266

6
-C – 24 VAC/VDC common
+R – 24 VAC/VDC hot
W1 – 1st stage heat
Y1 – 1st stage cool
W2 – 2nd stage heat
Y2 – 2nd stage cooling
G – Fan
O – Override
-C OGY2W2Y1W1+R
ELECTRONIC THERMOSTAT
W
2
G W
1
Y
1
F E L U A P V +
R
-
C
O
McQUAY SINGLE CIRCUIT
Mark IV Board
Low Voltage Terminal Board
Terminal Designator Descriptions
Wiring Diagrams
Override (Optional)