LG UT24H.NN1 User Manual – Page 8

Posted on 22 Sep, 2019
Manufacturer: LG
Category: Air Conditioners
Product: LG UT24H.NN1
Pages: 27
File size: 5 MB

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 "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 temperature: 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... Adiabatic glass wool with thickness 10 to 20mm.
• Stick glass wool on all air conditioners that are located in ceiling atmosphere.
Indoor unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
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 flexible drain hose to the
drain port on the indoor unit.
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)
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Drain test
8
Air Conditioner
The indoor unit installation
• Drain piping must have down-slope (1/50 to 1/100): be sure not to
provide up-and-down slope to prevent reversal flow.
• During drain piping connection, be careful not to exert extra force on
the drain port on the indoor unit.
• The outside diameter of the drain connection on the indoor unit is
32mm.
• Be sure to execute heat insulation on the drain piping.
• Install the drain raising pipes at a right
angle to the indoor unit and no more than
300mm from the unit.
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Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
700 or less
1 -1.5m
300mm or less
Clamp metal(attached)
Drain hose(attached)
Drain raising pipe
Piping material: Polyvinyl chloride pipe VP-25 and
pipe fittings
Heat insulation material: Polyethylene foam with thickness more than 8 mm.
Indoor Unit Drain Piping
CAUTION:
The supplied flexible drain hose should not be
curved, neither screwed. The curved or
screwed hose may cause a leakage of water.
1/50~1/100 slope
Hanger
distance
Hanger Bracket
Max 700mm
Flexible drain hose
Insulation
Metal
clamp
Max 300mm
1~15m