LG multi V ARUB160BT3 Instruction Manual page 30

Refrigerant piping installation
[ Reducers for indoor unit and HR unit ]
Models
Indoor unit
reducer
PRHR021
HR unit
reducer
PRHR031/
PRHR041
30 Outdoor Unit
Liquid pipe
OD9.52 Ø6.35
OD9.52 Ø6.35
OD15.88 Ø12.7 Ø9.52
Gas pipe
High pressure
OD19.05 Ø15.88 Ø12.7
OD12.7 Ø9.52
OD22.2 Ø19.05 Ø15.88
OD15.88 Ø12.7
(Unit: mm)
Low pressure
OD15.88 Ø12.7
OD22.2 Ø19.05 Ø15.88
OD15.88 Ø12.7
OD28.58 Ø22.2 Ø19.05
OD19.05 Ø15.88