12
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SE RVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
WARNI NG
ROOM THERMOSTAT
WYGR
#18 GA. 4 WIRES WITH
COOLING 3 WIRES WITHOUT
R
G
W
Y
TO CONDENSI NG
UNIT 24V. CO NNECTIONS
#18 GA. 2 WIRES BLUE
WHITE
GREEN
RED
CONTACTOR
COIL
AT/AR UNIT
Figure 8 - Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 10kW and below
W2

GREEN

RED

WHITE

BLUE

BROWN

#18 GA. 4 WIRE WITH

COOLING 3 WIRE WITHOUT

CONDENSING
UNIT 24V. CONNECT IO N S
#18 GA. 2 WIRES
CONTACTOR
COIL

AT/AR UNIT

Figure 9 - Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 15kW and above