LG MULTI V WATER IV ARWV100DAL4 Installation Manual page 17

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
"ISO 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 tempera-
ture: 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... EPDM
(Ethylene Propylene Diene Methylene)-over 120°C
the heat-resistance temperature.
• Add the insulation over 10mm thickness at high humidity environment.
3. Standard refrigerant pipe EPDM heat insulation material thickness
Classification
Ø6.35
Liquid
Ø9.52
pipe
Above Ø12.7
Ø9.52
Ø12.7
Ø15.88
Ø19.05
Gas
Ø22.22
pipe
Ø25.4
Ø28.58
Ø31.75
Ø34.9
Ø38.1
Ø44.45
Note 1) General location: When the pipe passes through indoors in which the indoor unit is operated
- 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 ceiling finishing is high
- Bathroom/swimming pool locker room etc. (Building with roof ceiling of sandwich assembly type)
Note 3) General location: When the pipe passes indoors where the indoor unit is not operated
- Hall way etc. (Dormitory, school, office-tel)
Note 4) Negative condition: When below conditions 1 and 2 are met.
1. When the pipe passes indoors where the indoor unit is not operated
2. When the humidity is high, regionally, and there is no air flow in the pipe passing area
- When installing the outside unit within the outside pipe tray or at a location where it is ok to have freezes, apply 13t.
- If you are not sure with the selection of heat insulation material, coordinate with the supervision or HQ.
- The thickness of the above heat insulation material is based on the heat conductivity of 0.088W/m°C.
Air conditioned location
Note1) General location Note2) Special location
Above t9 Above t9
Above t13 Above t13
Above t13
Above t19
Above t19
Above t25
Indoor unit
Non-air conditioned location
Note3) General location
Above t9
Above t13
Above t19
Above t25
Installation
Fastening band
(accessory)
Refrigerant piping
Thermal insulator
(accessory)
[Unit:mm]
Note4) Negative condition
Above t9
Above t13
Above t25
Installation Manual 17