LG Multi V 5 Guide Book

024 025
_TROUBLE SHOOTING GUIDE BOOK _
HR Unit
Multi V Hydro Kit
8 / 10 / 12 / 14 / 16 HP (1 Comp)
Type Model Chassis
Capacity
(Btu/h(kW))
Hydro Kit
(For high Temperature)
ARNH08GK3A2
K3
75k(25.0)
Model Chassis Branches Number
PRHR022
2
PRHR032
3
PRHR042
4
Type Model Chassis
Capacity
(Btu/h(kW))
Hydro Kit
(For Medium Temperature)
ARNH10GK2A2
K2
96k(28.0)
ARNH04GK2A2 42k(12.3)
50
Multi V 5
Outdoor Units
3. Piping Diagrams
3.1 8 / 10 / 12 / 14 / 16 HP (1 Comp)
3.1.1 Heat Recovery System
 Cooling Operation
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HR unit
EEV
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
Indoor HEX
Indoor HEX
Indoor HEX
Indoor HEX
Fan
Fan
Fan
Fan
EEV
EEV
EEV
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M
M
Fan
Motor
Outdoor
Temperature
Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor Unit HEX
Temperature Sensor
Outdoor
Unit HEX
Temperature
Sensor
Low Hot
Vapor Valve
Sub 4-Way Valve
High Pressure
Sensor
Main 4-Way
Valve
Suction
Temperature
Sensor
Receiver
Receiver
Outlet
Low
Pressure Sensor
Comp 1
Discharge
Temperatue Sensor
Oil Separator
Liquid Pipe
Temperature Sensor
Low Pressure Vapor Pipe
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
High / Low Pressure Vapor Pipe
Liquid Pipe
Inverter
Comp 1
Sub-Cooling Circuit
Outlet Temperature Sensor
Sub-Cooling HEX
Sub-Cooling Circuit Inlet
Temperature Sensor
SC
EEV
Accum
Pressure Switch
Upper Hot
Vapor Valve
Upper Outdoor EEV
Low Outdoor
EEV
Receiver
Inlet
SC
Suction
Oil Return
Heatsink
Active
Path
Comp 1
Vapor
Injection
Pressure Sensor
Pressure Switch
Temperature Sensor
Remarks
SVC Valve
Check Valve
EEV
Solenoid Valve
Strainer
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*14,16HP have 2fans.
Heat Recovery System
■ Cooling Operation
3. Piping Diagrams
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)