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WIRING DIAGRAM - THREE PHASE
CONTROLS SHOWN WITH UTILITIES
IN 'ON'POSITION
LOW VOLTAGE DEFROST RELAY
OUTDOOR THERMOSTAT (OPTIONAL)
HIGH VOLTAGE DEFROST RELAY
AND THERMOSTAT
REVERSING VALVE COIL
FAN CAPACITOR
HIGH PRESSURE CONTROL
CRANKCASE HEATER
INTERNAL OVERLOAD
LOW PRESSURE CONTROL
DEFROST THERMOSTAT
COMPONENT CODE
OUTDOOR FAN MOTOR
DEFROST CONTROL
COMPRESSOR
CONTACTOR
COPPER CONDUCTORS ONLY
EQUIPMENT GROUND USE
R
LIGHT BLUE
USE N.E.C. CLASS 2 WIRE
G
GREEN
W
O
ORANGE
WHITE
V
BR
LTBL
BL
R
Y
VIOLET
BROWN
YELLOW
BLUE
RED
COLOR CODE
BK
BLACK
V
R
CM
AUX
MAIN
IO
BK
BR
V
POWER SUPPLY
(SEE RATING PLATE)
USE COPPER CONDUCTORS ONLY
FC
BR
DC
BK
CH
BK
COMP
C
BK
R
S
RVC
HVDR
LDVR
CH
IO
HP
OT
LP
FC
DFT
Y
BK
BK
COMP
C
CM
T3
L3
R
L1
C
L2
T1
BL
T2
BK
R
Y
BK
Y
BR
V
Y
HP
1) TO INDOOR UNIT LOW
2) SEE INDOOR UNIT &
INDOOR THERMOSTAT.
OF OPTIONAL OUTDOOR THERMOSTAT.
INSTRUCTIONS FOR CONNECTION
OUTDOOR UNIT INSTALLATION
VOLTAGE TERMINAL BLOCK &
INDOOR POWER SUPPLY
NOTES:
R
ADJ. HEAT
ANTICIPATOR
THERMOSTAT
BULB
THERMOSTAT
R
COOL
THERMOSTAT
ANTICIPATOR
24V
TRANSFORMER
HEAT
W
COIL
SYSTEM
SWITCH
THERMOSTAT
OFF
COOL
COIL
FAN RELAY
COIL
C
CH
THERMOSTAT
FAN SWITCH
H
P
3
COMP
2
C
T3
L3
C
T2
L2
MOTOR
AUTO
ON
G
CONTACTOR
1
CAP
C
T1
L1
OUTDOOR POWER SUPPLY
Y
C
T1
L1
BL
V
V
LOW VOLTAGE
IN 'OFF' POSITION.
WIRING CODE
LOW VOLTAGE
HIGH VOLTAGE
FACTORY WIRING
FIELD WIRING
LINE SPLICE
WIRE NUT
CONNECT TO APPROP. CONTROL
CIRCUIT HAVING
LIMITED CLASS 2
INSTALLATION. USE C.S.A.
TRAMSFORMER OR FOR
MIN. 40 VA. 24 VOLT
N.E.C. CLASS 2
CERTIFIED C.S.A
CERTIFIED ENERGY
TRANSFORMER.
Summary of Contents for ACU018ARAY
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