LG TB-H488RSS5, Service Manual, Page: 23 / 42

–23–
• Drill the piping hole with 70mm dia, hole
core drill.
• Piping hole should be slightly slant to the
outdoor side.
INSULATION, OTHERS
Insulate the joint and tubes completely.
All thermal insulation must comply with local requirements.
INDOOR UNIT
REFRIGERANT PIPE
• Insulate and tape both the gas piping and liquid piping.
THERMAL INSULATION
5~7mm
Indoor Outdoor
WALL
Make sure that there is no clearance here.
Overlap with thermal
insulator for piping.
Thermal insulator for refrigerant pipe
(Local supply)
Thermal insulator for
piping(Local supply)
Hose crip for thermal insulator(Local supply)
Union for liquid pipe
Orifice
Refrigerant pipe and thermal
insulator(Local supply)
Union for gas pipe
Thermal insulator for refrigerant pipe
(Local supply)
Hose crip for thermal insulator
(Local supply)
Connecting cable
Liquid pipe
Thermal insulator
Gas pipe
Tape