LG multi V ARUB160BT3 Instruction Manual page 28

Refrigerant piping installation
Type of HR Unit
Select an HR unit according to the number of the indoor units to be installed. HR units are classified into 3 types
by the number of connectable indoor units.
Ex) Installation of 6 indoor units
Consists of HR unit for 4 branches and HR unit for 2 branches.
1
PRHR021(2 branches)
Liquid pipe
Low pressure gas pipe
High pressure gas pipe
Remove caps on
The brazing part.
28 Outdoor Unit
2
PRHR031(3 branches)
3
2
1
Gas pipe Ø15.88
Liquid pipe Ø9.52
Brazing Type
4
3
1 2
PRHR041(4 branches)
3 4
1 2