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Part Number 80-1479-3 7/10
279
WIRING DIAGRAMS FOR ENERGY EFFICIENT &
ENERGYSTAR MACHINES
S300/S420/S450/S500
Self-Contained - 1 Phase
Caution: Disconnect Power Before Working on Electrical Circuitry
L1
HIGH PRESSURE
CUTOUT
(89)
(88)
CONTROL BOARD
(2)
(6)
(1)
(5)
(7)
(4)
TRANS.
FUSE (7A)
(55)
(61)
CLEAN
ICE THICKNESS PROBE
WATER LEVEL PROBE
LEFT BIN
RIGHT BIN
RMT BIN
WTR PROBE
ICE PROBE
HARV
SL-1
SL-2
(9)
(8)
(56)
BIN SWITCH
(6)
LOW D.C.
VOLTAGE
PLUG
(1)
(2)
R
S
C
COMPRESSOR
TERMINAL LAYOUT
VIEWED FROM END
OF COMPRESSOR
COMPRESSOR
R
S
C
OVERLOAD INTERNAL
(230V 50/60 HZ)
(48)
(47)
(46)
CONTACTOR
CONTACTS
POTENTIAL
RELAY
(85)
FAN CYCLE CONTROL
RUN
CAPACITOR
(53)
(44)
START
CAPACITOR
(52)
(49)
(45)
FAN MOTOR
(AIR COOLED ONLY)
RUN CAPACITOR**
(50)
(48)
(47)
(46)
(50)
POTENTIAL
RELAY
4
1
5
2
4
1
5
2
(44)
START
CAPACITOR
(45)
(49)
WIRING FOR S300 ONLY
(NO RUN CAPACITOR)
CLEAN
OFF
ICE
TERMINATES AT
PIN CONNECTION
CONTACTOR
COIL
SEE SERIAL PLATE FOR VOLTAGE
(20)
(21)
WATER VALVE
AIR PUMP
WHEN USED
(22)
(28)
(99)
HARVEST
SOLENOID
(27)
DUMP
SOLENOID
(60)
(77)
WATER
PUMP
(76)
(80)
(81)
L2 OR N
(57)
(58)
(59)
(98)
(75)
(74)
(42)
L1
* - COMPRESSOR HAS
INTERNAL OVERLOAD
* * - SOME AIR COOLED MODELS
MAY NOT HAVE RUN CAPACITOR
ON FAN MOTOR
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