LG Multi V 5 Guide Book

Checking Method for Key Components
1. The Phenomena from Main Component Failure 150
2. Compressor 151
3. EEV 156
4. Solenoid Valve 163
5. 4Way Valve 168
6. Check Valve (Outdoor EEV Check Valve) 169
7. Check Valve (Oil Separator) 169
8. Outdoor Fan & Fan Motor 170
9. Temperature Sensor 172
10. Pressure(High/Low) Sensor 173
11. Humidity Sensor 175
12. Pressure Switch 176
13. Main PCB 177
14. External PCB 179
15. Inverter PCB 181
16. Fan PCB 183
17. Communication PCB 185
18. Phase Bridge Diode 186
19. Inverter IGBT 187
20. Fan IPM 188
21. Central Controller PC Status 190
App. Service & Replace Method
of Control Box, Inverter PCB 194
Ⅲ. Trouble Shooting Guide
Basic Part
Multi V 5
Intorduction
Trouble Shooting
Function Control
Back
Basic PartBasic PartBasic PartBasic Part

LG Multi V 5 Specifications

General

Type	VRF (Variable Refrigerant Flow)
Refrigerant	R410A
Compressor Type	Inverter Scroll Compressor
Outdoor Unit Fan Type	Axial Fan
Cooling Capacity	22.4 kW to 270 kW
Energy Efficiency	High
Operating Range	Cooling: -5°C to 48°C
Power Supply	380-415V, 50/60Hz
Heat Exchanger Type	Microchannel
Control Type	Centralized Control
Indoor Unit Options	Cassette, Wall Mounted, Ducted
Heat Recovery	Available
Warranty	Varies by region (typically 5 years compressor, 1-2 years parts)