LG ARUV Series Service Manual page 194

Wiring Diagrams
Inverter Board
CONNECTOR No.
CN1
CN2
CN3
CN4
CN5
CN6
CN10, 11, 12
CN13
Main Board
CONNECTOR No.
CN01
CN02
CN03
CN04
CN05
CN06
CN07
CN08
CN10
CN11
CN12
CN14
CN15
CN16
CN17
CN18
CN19 CEN-CONTROL/WRITE
CN20
CN21 TO INVERTER BOARD
CN22 TO INDOOR UNIT
CN23 TO SUB OUTDOOR
CN25
CN26
CN27
CN28
CN29
JIG 1
JIG 2
CN36
CN24
CN34
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
SPEC
POWER
DC-LINK
WRITE
H/P, M
PHASE
SIGNAL
IPM
IPM
SPEC
AC POWER IN
AC TRANS IN
AC TRANS OUT
4WAY
LIQ(I)
LIQ(C)
HEATER(I)
HEATER(C)
HOT-GAS
OILPASS(I)
OILPASS(C)
MAGNET(C)
COOLING FAN
EEV-OUT
EEV-SC
TO-JIG
TO FAN BOARD
OUT-AIR
S_PIPE(I)
D_PIPE(C)
D_PIPE(I)
HEX_PIPE(C)
HEX_PIPE(I)
SC-OUT
SC-IN
SC-L
P-SEN(H)
P-SEN(L)
JIG
JIG
EEV-HOUT
DRY CONTACT
DRY CONTACT
DESCRIPTION
AC POWER
DC LINK VOLTAGE DETECT
ON BOARD WRITING
HIGH PRESSURE MAGNETIC SWITCH
3 PHASE DETECT
TRANXMISSION WITH CONTROL BOARD
PWM SIGNAL
PWM CONTROL POWER
DESCRIPTION
AC POWER
AC POWER TO TRANS
AC POWER FROM TRANS
4WAY REVERSING VALVE
NVERTER COMP LIQUID INJECTION VALVE
CONSTANT COMP LIQUID INJECTION VALVE
INVERTER COMP CRANK HEATER
CONSTANT COMP CRANK HEATER
HOT GAS BYPASS VALVE
NOT USE
NOT USE
MAGNETIC SWITCH
HEATSINK FAN
LINEAR EXPANSION VALVE(MAIN)
LINEAR EXPANSION VALVE(SUBCOOLING CIRCUIT)
TRANSMISSION WITH JIG
TRANSMISSION WITH CENTRAL CONTROLLER
TRANSMISSION WITH FAN BOARD
TRANSMISSION WITH INVERTER BOARD
TRANSMISSION WITH INDOOR UNIT
TRANSMISSION WITH SUB OUTDOOR UNIT
OUTDOOR AIR THERMISTOR
INVERTER COMP SUCTION PIPE THERMISTOR
CONSTANT COMP DISCHARGE PIPE THERMISTOR
INVERTER COMP DISCHARGE PIPE THERMISTOR
CONDENSOR PIPE THERMISTOR(C)
CONDENSOR PIPE THERMISTOR(I)
SUBCOOLING CIRCUIT OUTLET PIPE THERMISTOR
SUBCOOLING CIRCUIT INLET PIPE THERMISTOR
SUBCOOLING CIRCUIT LIQUID PIPE THERMISTOR
HIGH PRESSURE SENSOR
LOW PRESSURE SENSOR
JIG POWER
JIG POWER
LINEAR EXPANSION VALVE(MAIN)
OPERATING MODE LOCKING(COOL, HOT ,GENERAL)
OPERATING MODE LOCKING(COOL, HOT ,GENERAL)
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