LG Multi V Service Manual

Wiring Diagrams
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Copyright © 2020 LG Electronics Inc.
All rights reserved. Only training and service purposes.
OPTIONAL OR FACTORY INSTALLED*
* This Function can be optional or factory installed depending on the application model.
* You must purchase the optional parts in order to use them.
MAIN BOARD
(MASTER)
CN_R1_MP EEV 01 (Bypass for Room1)
CN_R2_MP EEV 02 (Bypass for Room2)
CN_R3_MP EEV 03 (Bypass for Room3)
CN_R4_MP EEV 04 (Bypass for Room4)
CN_R1_HL EEV 01 Low/High (For Room1)
CN_R2_HL EEV 02 Low/High (For Room2)
CN_R3_HL EEV 03 Low/High (For Room3)
CN_R4_HL EEV 04 Low/High (For Room4)
CN_SC Sub Cooling EEV
CN_TEMP(SC_OUT) Sensor, Sub Cooling Out
CN_TEMP(SC_IN) Sensor, Sub Cooling In
CN_TEMP(LIQUID) Sensor, Liquid Receiver
CN_SOL_VALVE Solenoid Valve Bypass 01
SW01E
Setting, EEV Number(When Manual Address)
Setting, Time of Zoning Address(When Auto Address)
SW02E(1)
Selecting, Auto Address( ↓ ) or Manual Address( ↑ )
SW02E(2~4) Setting, Total Number of Indoor connected
SW02E(5) Setting, Slave PCB
SW02E(6) Setting, EEPROM Reset
SW02E(7~8) Setting, Mode(Zoning, etc.)
SW01C
Setting, HR Unit Number
Setting, EEV Number of Zoning(When Manual Address)
SW01D Setting, EEV Group
SW01B Setting, the Address of indoor_1(When Manual Address)
SW02B Setting, the Address of indoor_10(When Manual Address)
MAIN BOARD
(SLAVE)
CN_R1_MP EEV 05 (Bypass for Room5)
CN_R2_MP EEV 06 (Bypass for Room6)
CN_R3_MP EEV 07 (Bypass for Room7)
CN_R4_MP EEV 08 (Bypass for Room8)
CN_R1_HL EEV 05 Low/High (For Room5)
CN_R2_HL EEV 06 Low/High (For Room6)
CN_R3_HL EEV 07 Low/High (For Room7)
CN_R4_HL EEV 08 Low/High (For Room8)
2) PRHR083, PRHR063

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)