LG R410A - Page 89

Service Manual 89
Inverter Board
Main Board
CONNECTOR No. SPEC DESCRIPTION
CN1 POWER AC POWER
CN2 DC-LINK DC LINK VOLTAGE DETECT
CN4 H/P, M HIGH PRESSURE MAGNETIC SWITCH
CN5 PHASE 3 PHASE DETECT
CN6 COMMUNICATION COMMUNICATION SIGNAL WITH MAIN PCB
CN7 FAN HEATSINK FAN HEATSINK TEMPERATURE SENSOR
CN8 INV. HEATSINK INV. HEATSINK TEMPERATURE SWNSOR
CN9 COMMUNICATION COMMUNICATION SIGNAL WITH FAN PCB
CN114-1,2 COMP. IPM POWER CABLE FROM IPM TO COMP.
CN15 INPUT CURRENT INPUT CURRENT SENSING
CN18 ON-BOARD ON-BOARD WRITING PORT
CN_COOLFAN COOLFAN COOLING FAN OF HEATSINK
CN_IPM IPM CONTROL SIGNAL FOR PWM
CN_GATE, CN_GATE1 IPM PWM CONTROL POWER
CN_MOTOR1 FAN MOTOR FAN OF OUTDOOR UNIT
CONNECTOR No. SPEC DESCRIPTION
CN01 AC POWER IN AC POWER
CN02 AC TRANS IN AC POWER TO TRANS
CN03 AC TRANS OUT AC POWER FROM TRANS
CN04 4WAY 4WAY REVERSING VALVE
CN05 LIQ(I) NVERTER COMP LIQUID INJECTION VALVE
CN06 LIQ(C) CONSTANT COMP LIQUID INJECTION VALVE
CN07 HEATER(I) INVERTER COMP CRANK HEATER
CN08 HEATER(C) CONSTANT COMP CRANK HEATER
CN10 HOT-GAS HOT GAS BYPASS VALVE
CN11 OILPASS(I) NOT USE
CN12 OILPASS(C) NOT USE
CN14 MAGNET(C) MAGNETIC SWITCH
CN15 COOLING FAN HEATSINK FAN
CN16 LEV-OUT LINEAR EXPANSION VALVE(MAIN)
CN17 LEV-SC LINEAR EXPANSION VALVE(SUBCOOLING CIRCUIT)
CN18 TO-JIG TRANSMISSION WITH JIG
CN19 CEN-CONTROL/WRITE TRANSMISSION WITH CENTRAL CONTROLLER
CN20 TO FAN BOARD TRANSMISSION WITH FAN BOARD
CN21 TO INVERTER BOARD TRANSMISSION WITH INVERTER BOARD
CN22 TO INDOOR UNIT TRANSMISSION WITH INDOOR UNIT
CN23 TO SUB OUTDOOR TRANSMISSION WITH SUB OUTDOOR UNIT
OUT-AIR OUTDOOR AIR THERMISTOR
CN25 S_PIPE(I) INVERTER COMP SUCTION PIPE THERMISTOR
D_PIPE(C) CONSTANT COMP DISCHARGE PIPE THERMISTOR
D_PIPE(I) INVERTER COMP DISCHARGE PIPE THERMISTOR
CN26 HEX_PIPE(C) CONDENSOR PIPE THERMISTOR(C)
HEX_PIPE(I) CONDENSOR PIPE THERMISTOR(I)
SC-OUT SUBCOOLING CIRCUIT OUTLET PIPE THERMISTOR
CN27 SC-IN SUBCOOLING CIRCUIT INLET PIPE THERMISTOR
SC-L SUBCOOLING CIRCUIT LIQUID PIPE THERMISTOR
CN28 P-SEN(H) HIGH PRESSURE SENSOR
CN29 P-SEN(L) LOW PRESSURE SENSOR
JIG 1 JIG JIG POWER
JIG 2 JIG JIG POWER
CN36 LEV-HOUT LINEAR EXPANSION VALVE(MAIN)
CN24 DRY CONTACT OPERATING MODE LOCKING(COOL, HOT ,GENERAL)
CN34 DRY CONTACT OPERATING MODE LOCKING(COOL, HOT ,GENERAL)
Wiring Diagrams