LG ABNW18GBHC0 Engineering Product Data Book page 48

Compact
9. Installation
9.4 Connecting pipes to the indoor unit
1) Refrigerant piping work
please refer "REFRIGERANT PIPING WORK".
2) Piping insulation
① Perform heat insulation work completely on both gas and
the liquid pipe. Because improper insulation will result
condensate formation over pipe.
Use the heat insulation material for the refrigerant piping
which has an excellent heat resistance 120℃(248°F)).
② Precautions in high humidity circumstance: This air con-
ditioner has been tested according to the "KS
Conditions" 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℃(73°F)), water drops are liable to fall. In this case,
add heat
insulation material according to the following procedure:
③ Heat insulation material : Adiabatic glass wool with thick-
ness 10mm(13/32inch) to 20mm(25/32inch).
④ Stick glass wool on all air conditioners that are located in
ceiling atmosphere.
Indoor unit
Ceiling concealed duct - Middle static pressure(2)
Liquid pipe
Clamp for insulation
(Local supply)
Insulation
(Local supply)
Union for gas pipe
Thermal insulation for refrigerant pipe
(Local supply) Thermal insulation for
Make sure that there is no clearance here.
CAUTION
• Make sure to insulate any field piping all the way to the
piping connection inside the unit. Any exposed piping
may cause condensation or burns if touched.
Refrigerant pipe and thermal
insulation(Local supply)
piping(Local supply)
Overlap with
insulation
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