19
18 Wiring Diagrams
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
WARNING
Low Voltage Wiring for ARUF Air Handlers
ROOM THERMOSTAT
W
Y
G
R
#18 GA. 4 WIRES WITH
COOLING 3 WIRES WITHOUT
R
G
W
Y
TO CONDENSING
UNIT 24V. CONNECTIONS
#18 GA. 2 WIRES
BLUE
WHITE
GREEN
RED
CONTACTOR
COIL
ARUF UNIT
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. CONNECTIONS
#18 GA. 2 WIRES
CONTACTOR
COIL
ARUF UNIT
Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 15KW and above
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.