MBR Technical Manual

WIRING DIAGRAMS
7
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
ROOM THERMOSTAT
WY
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
MBR UNIT
Low Voltage Wiring Diagram for Cooling Unit with optional heat kit 10KW and below
W2
W
YGR
R
G
Y
W
GREEN
RED
WHITE
BLUE
BROWN
#18 GA. 4 WIRE WITH
COOLING 3 WIRE WITHOUT
ROOM THERMOSTAT
OUTDOOR
THERMOSTAT
(OPTIONAL)
CONDENSING
UNIT 24V. CONNECTIONS
#18 GA. 2 WIRES
#18 GA. 2 WIRES
CONTACTOR
COIL
MBR 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.