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WARNING
COOLING UNIT WITH OPTIONAL HEAT KITS OF 15 kW AND ABOVE
AND ROOM THERMOSTAT WITH TWO STAGES OF HEAT
C
Y
R
W2
O
OR
HEAT PUMP UNIT WITH OPTIONAL HEAT KITS OF 10 kW AND BELOW
NOTES:
1) OUTDOOR THERMOSTAT (OT-1) SHOULD BE THE
FIRST TO CLOSE AND THE LAST TO OPEN.
2) JUMPER W1 AND W2 TOGETHER IF OT-2 IS NOT
USED.
3) REMOVE WIRE WHEN USING OUTDOOR THERMO-
STAT.
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 SERVICING.
MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
W
Y
G
W2
YL
BR
YL
CONDENSING UNIT
24V CONNECTION
BL
Y
O
C
W2
YL
WH
RD
WH
BL
YL
WH
BL
NOMENCLATURE:
OT - OUTDOOR THERMOSTAT (OPTIONAL)
EHR - EMERGENCY HEAT RELAY (OPTIONAL)
18
#18 GA. 5 WIRES WITH COOLING
4 WIRES WITHOUT
R
RD
GR
WH
BR
BR
YL
YL
BL
#18 GA. 7 WIRE
G
R
E
BR
RD
GR
BR
WH
BL BL
YL
YL
OR
AIR HANDLER
C
R
G
W1
W2
Y1
Y2
O
TB
AIR HANDLER
C
R
G
W1
W2
Y1
Y2
O
TB
COLOR CODES
RD - RED
YL - YELLOW
BL - BLUE
BR - BROWN
OR - ORANGE
WH - WHITE
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