INSTALLATION
ENGLISH
25
Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
- Connect the main drain pipe to the exterior
and leave it provisionally until the test comes
to an end.
- Feed water to the flexible drain hose and
check the piping for leakage.
- Be sure to check the drain pump for normal
operating and noise when electrical wiring is
complete.
- When the test is complete, connect the flexi-
ble drain hose to the drain port on the indoor
unit.
HEAT INSULATION
- Use the heat insulation material for the
refrigerant piping which has an excellent
heat-resistance (over 120°C).
- Precautions in high humidity circumstance:
This air conditioner has been tested accord-
ing 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 tempera-
ture: more than 23°C), water drops are liable
to fall. In this case, add heat insulation mate-
rial according to the following procedure:
• Heat insulation material to be prepared...
Adiabatic EPDM or NBR with thickness 10
to 20mm.
• Stick EPDM or NBR on all air conditioners
that are located in ceiling atmosphere.
• In addition to the normal heat insulation
(thickness: more than 8mm) for refrigerant
piping (gas piping: thick piping) and drain
piping, add further 10mm to 30mm thick-
ness material.
Feed water
Drain Pump
Drain pan
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip (accessory)
1/50~1/100
MAX 800mm
Flexible drain hose
Flexible drain hose
Flexible drain hose
CAUTION
The supplied flexible drain hose should
not be curved, neither screwed. The
curved or screwed hose may cause a
leakage of water.
!
Indoor
unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant
piping
