8. Installation
36
MULTI/SINGLE Indoor unit
Ceiling concealed duct - Middle static pressure
8.3 Connecting pipes to the indoor unit
Refrigerant piping work
To detail information for connecting the refrigerant pipes, please refer to the installation manual included
withproduct.
Piping insulation work
• 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 120°C
(248°F)).
• Precautions in high humidity circumstance
– This air conditioner has been tested according to the "KS Conditions" and confirmed.
– If it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C(73°F)),
water drops are liable to fall. In this case, add heat insulation material according to the following procedure.
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.
• Heat insulation material : Adiabatic glass wool with
thickness of 10~20mm(13/32 ~13/16 inch).
• Stick glass wool on all air conditioners that are located
in ceiling atmosphere.
Make sure that there is no clearance here.
Overlap with
insulation
Thermal insulation for refrigerant pipe
(Local supply)
Thermal insulation for
piping(Local supply)
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