LG GP-W500B6C, Installation Manual

Page: 29 / 91

REFRIGERANT PIPING
ENGLISH
29
Insulation
- Use the heat insulation material which has
an excellent heat-resistance (over 120C) for
the refrigerant piping.
- If installing the unit in a high humid area, use
a thicker insulation material than standard.
h
Contact the company for more details.
Indoor
unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
Rubber thermal insulation for refrigerant piping (EPDM, NBR) standard thickness
(Unit: mm)
Classification
Air conditioned location Non-air conditioned location
Note1)
General location
Note2)
Special location
Note3)
General location
Note4)
Negative condition
Liquid
pipe
Ø 6.35(1/4)
Above t9 Above t9 Above t9 Above t9
Ø 9.52(3/8)
Above Ø12.7 Above t13 Above t13 Above t13 Above t13
Gas pipe
Ø 9.52(3/8)
Above t13
Above t19 Above t19
Above t25
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 25.4(1)
Ø 28.58(1-1/8)
Above t19
Ø 31.75(1-1/4)
Above t25 Above t25
Ø 34.9(1-3/8)
Ø 38.1(1-1/2)
Ø 41.3(1-5/8)
Ø 44.45(1-3/4)
Ø 50.8(2)
Ø 53.98(2-1/8) Above t32
Note 1) General location: When the pipe passes through indoors in which the indoor unit is oper-
ated
- Apartment, classroom, office, mall, hospital, office-tel etc.
Note 2) Special location
1
When the location is air conditioned but has severe temperature/humidity difference
due to high ceiling
- Church, auditorium, theater, lobby etc.
2
When the location is air conditioned but the internal temperature/humidity of the ceil-
ing finishing is high
- Bathroom/swimming pool locker room etc.
(Building with roof ceiling of sandwich assembly type)