10.5
Connecting pipes to the indoor unit
1) Refrigerant piping work
Please refer to installation manual.
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 (over 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 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 13/32 to 13/16 inch.
④ Stick glass wool on all air conditioners that are located in
ceiling atmosphere.
• 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.
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