Wiring Diagram - Single Phase - McQuay ACU018ARAY Installation And Maintenance Manual

WIRING DIAGRAM - SINGLE PHASE

OUTDOOR CONTROL BOX
C
F
HERM
COMPRESSOR/FAN
CAPACITOR
START ASSIST
FAN MOTOR
PU
COMPRESSOR
BK BR
C S
Y
R
R
BK
BK
BK
CRANKCASE HEATER IF USED
FIELD
FACTORY
WIRING CODE
WIRING
WIRING
HIGH VOLTAGE
LOW VOLTAGE
WIRE NUT
OPTIONAL START ASSIST
IM-800
PU
R
R
Y
Y
BR
R
Y
PU
Y
(START ASSIST
IF USED)
BK
BK
PU
WIRING FOR NOTES:
FACTORY
REPLACEMENT WIRE MUST BE SAME
OPTIONS
GAGE AND INSULATION THICKNESS,
105° C APPLIANCE WIRING MATERIAL.
ALT. DOUBLE
POLE CONTACTOR
T1 T2
L2
L1
BK R
BK
R
OUTDOOR POWER
T1 T2
SUPPLY - (SEE
UNIT RATING
PLATE)
USE COPPER
CONDUCTORS ONLY
L1 L2
USE L1 FOR
NEUTRAL OR
GROUNDED SUPPLY
IF USED
PU
EQUIPMENT GROUND
CONNECT TO APPROP.
CONTROL CIRCUIT HAVING
MIN. 40 VA 24 VOLT
N.E.C. CLASS 2
TRANSFORMER OR FOR
CERTIFIED C.S.A.
INSTALLATION. USE C.S.A.
CERTIFIED ENERGY LIMITED
CLASS 2 TRANSFORMER.
COLOR CODE
BLACK
BK
R RED
Y YELLOW
BL BLUE
PU PURPLE
LIGHT BLUE
LTBL
BR BROWN
G GREEN
OUTDOOR POWER SUPPLY
CRANKCASE HEATER
C L2
(IF USED)
O
N
T R
A
C
T
O COMPRESSOR
T2
R
MOTOR
COMPRESSOR
INTERNAL
S
OVERLOAD
START ASSIST
(IF USED)
CAPACITOR
ON
THERMOSTAT
G
FAN SWITCH
AUTO
THERMOSTAT
COOL
ANTICIPATOR
Y
COOL
R
THERMOSTAT
SYSTEM
OFF
THERMOSTAT
SWITCH
BULB
HEAT
THERMOSTAT
ADJ. HEAT
W
24V
ANTICIPATOR
R
LOW VOLTAGE
TRANSFORMER
INDOOR POWER SUPPLY
L1
C
O
N
T
A
C
T
O
C T1
R
FAN MOTOR
CONTACTOR
COIL
FAN RELAY
COIL
COIL
C
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