LG Multi V CRUN Series User Manual

Service Manual 175
Wiring Diagrams
Control board
Connector
SPEC Color Description
Number
CN1 POWER 1(AC) NT AC POWER 1
CN2 YL
CN3 TO-INDOOR WH TRANSMISSION WITH INDOOR
JIG1, 2 JIG WH JIG POWER
CN5 WH NOT USE
NOT USE
NOT USE
CN6 SIGNAL RD TRANSMISSION WITH INVERTER BOARD
CN7 CENTRAL CONTROL BL INTERNET CENTRAL CONTROL
CN8 WH
CN9 D-PIPE/S-PIPE(B) BL DISCHARGE/SUCTION PIPE TERMINALS
CONDENSER PIPE THERMISTOR
OUTDOOR AIR THERMISTOR
CON-PIPE(A)
CN11 CON-PIPE(B) WH
OUT-AIR
CN13 P-SEN(H) RD HIGH PRESSURE SENSOR
CN14 P-SEN(L) BL LOW PRESSURE SENSOR
CN15 LEV(A) RD LINEAR EXPANSION VALVE(A)
Connector
SPEC Color Description
Number
CN16 LEV(B) RD LINEAR EXPANSION VALVE(B)
CN17 MAGNETIC BL MAGNETIC SWITCH
CN18 FAN(L) BL FAN MOTOR (LEFT)
CN19 FAN(R) RD FAN MOTOR (RIGHT)
CN20 HEATER(I) YL INTERNET COMP. CRANK HEATER
CN21 HEATER(C) WH CONSTANT COMP. CRANK HEATER
CN22 4WAY BL 4WAY REVERSING VALVE
CN23 H/GAS GR HOT GAS VALVE
CN24 LIQ(I) RD INVERTER LIQUID INJECTION VALVE
CN25 LIQ(C) RD LIQUID INJECTION VALVE
CN27 POWER2(AC) NT INPUT POWER AC
CN28 JIG NT JIG SIGNAL
Connector
SPEC Color Description
Number
CN1 POWER AC POWER
CN2 DC-LINK RD
YL
DC LINK VOLTAGE DETECT
CN3 WRITE BL ON BOARD WRITING
CN4 H/P, M GRAY HIGH PRESSURE SWITCH MAGNETIC SWITCH
CN5 PHASE NT 3 PHASE DETECT
CN6 SIGNAL RD TRANSMISSION WITH CONTROL BOARD
CN7 D-PIPE WH
WH PWM SIGNAL
DISCHARGE PIPE THERMISTOR
CN10,11,12 IPM
PWM CONTROL POWER
CN13 IPM WH
Color
WH: white
RD: red
BL: blue
YL: yellow
GR: green
NT: natural
Inverter board

LG Multi V CRUN Series Specifications

General

Brand	LG
Model	Multi V CRUN Series
Category	Air Conditioner
Language	English