Piping Diagrams - LG MULTI V 5 Manual Book

HR Unit
Model Chassis
PRHR022
PRHR032
PRHR042
Multi V Hydro Kit
Type Model
ARNH10GK2A2
Hydro Kit
(For Medium Temperature)
ARNH04GK2A2
Type Model
Hydro Kit
ARNH08GK3A2
(For high Temperature)
024
_TROUBLE SHOOTING GUIDE BOOK
Branches Number
2
3
4
Capacity
Chassis
(Btu/h(kW))
96k(28.0)
42k(12.3)
K2
Capacity
Chassis
(Btu/h(kW))
75k(25.0)
K3
Multi V 5

3. Piping Diagrams

3. Piping Diagrams
3.1 8 / 10 / 12 / 14 / 16 HP (1 Comp)
8 / 10 / 12 / 14 / 16 HP (1 Comp)
3.1.1 Heat Recovery System
Heat Recovery System
Cooling Operation
■ Cooling Operation
Indoor HEX EEV
Fan
Indoor Unit
EEV
Indoor HEX
Fan
Indoor Unit
Indoor HEX EEV
Fan
Indoor Unit
Indoor HEX EEV
Fan
Indoor Unit
Fan
M M Motor
Outdoor Sub 4-Way Valve
Temperature
Sensor
High Pressure
Sensor
Outdoor Unit HEX Active
Temperature Sensor Path
Main 4-Way
Valve
Low
Low Hot
Outdoor Unit HEX Outdoor
Pressure Sensor
Vapor Valve
Temperature Sensor Unit HEX
Suction
Temperature
Sensor Temperature
Sensor
Upper Hot
Temperatue Sensor
Vapor Valve
Receiver
Receiver
Outlet
Accum
Upper Outdoor EEV
Low Outdoor
Receiver SC
EEV
Inlet Suction
Oil Return
Sub-Cooling Circuit Inlet
Temperature Sensor
Heatsink
*14,16HP have 2fans.
Pressure Sensor
Remarks
Pressure Switch
High Temperature High Pressure Vapor
High Temperature High Pressure Liquid
High Temperature High Pressure Liquid (Conditional)
Low Temperature Low Pressure Vapor
HR unit
Pressure Switch
Oil Separator
Comp 1
Discharge
Inverter
Comp 1
Comp 1
Vapor
Injection
High / Low Pressure Vapor Pipe
Low Pressure Vapor Pipe
Sub-Cooling Circuit
Outlet Temperature Sensor Liquid Pipe
Sub-Cooling HEX
Liquid Pipe
Temperature Sensor
SC
EEV
Temperature Sensor Check Valve Solenoid Valve
SVC Valve EEV Strainer
_
Outdoor Units
025