Heat Insulation - LG ABQ48GM3A4 Installation Manual

INSTALLATION OF INDOOR
16

Heat insulation

1
Use the heat insulation material for the refrigerant piping which has an excellent heat-
resistance (over 120 °C).
2
Precautions in high humidity circumstance:
This air conditioner has been tested according to the "KS Standard Conditions with Mist" and
confirmed that there is not any default. However, if it is operated for a long time in high humid
atmosphere (dew point temperature: more than 23 °C), water drops are liable to fall. In this
case, add heat insulation material according to the following procedure:
- Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20 mm.
- Stick glass wool on all air conditioners that are located in ceiling atmosphere.
Insulation material standard
(besides normal conditions
Applies to
for residential use)
Refrigerant piping
dimensions (mm)
6.35
9.52
12.7
15.88
19.05
Gas piping 22.22
25.40
28.58
31.75
38.1
44.45
6.35
9.52
Liquid
piping
12.7~44.45
• Normal conditions: Temperature of 30 °C, relative humidity of 85 %
• Unfavorable conditions: Temperature of 30 °C, relative humidity of 90 % (humid places such as
bathrooms, swimming pools, etc.: air supply and exhaust fan installation)
Fastening band
(accessory)
Indoor unit
Thermal insulator
(accessory)
If installed in an
(mm)
air-conditioned
place (CASE 1)
(ex: bedroom, living
room, etc.)
EPDM
19
19
19
19
19
19
19
19
19
25
25
9
13
Refrigerant
piping
Insulation material
Standard (mm) - residential
If installed in a
non-air-conditioned
place (CASE 2)
(ex: hallway,
outdoors, etc.)
EPDM EPDM
13 19
13 19
13 19
13 19
13 19
13 19
19 19
19 19
19 19
19 25
19 25
9 9
13 13
Insulation material
standard (mm)
(unfavorable
conditions)
EPDM
19
25
25
25
25
32
32
32
32
32
32
9
13