Concealed Duct Installation Manual

INSTALLATION
ENGLISH
13
Maintenance
drain port
Upward
routing
not allowed
Pipe clamp
Indoor unit
Indoor Unit Drain Piping (TYPE A/D)
- 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 32 mm(1-1/4 inch).
- Be sure to execute heat insulation on the
drain piping.
Piping material: Polyvinyl chloride pipe
VP-25 and pipe fittings
Heat insulation material: Polyethylene foam
with thickness more than 8 mm(5/16 inch).
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
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)
The supplied flexible drain hose should not
be curved, neither screwed. The curved or
screwed hose may cause a leakage of
water.
• Install declination of the indoor unit is
very important for the drain of the duct
type air conditioner.
• Minimum thickness of the insulation for
the connecting pipe shall be 19 mm(3/4
inch).
The unit must be horizontal or declined to
the drain hose connected when finished
installation.
1/50~1/100 slope
Hanger
distance
Hanger Bracket
Max 700 mm
(27-11/20 inch)
Flexible drain hose
Insulation
Metal
clamp
Max 300 mm
(11-4/5 inch)
1~15 m
(3-7/25
~49-1/5 ft)
Front of view
Drain Pump use
Drainage
hole
Ceiling
HAND OVER
Teach the customer the operation and
maintenance procedures, using the operation
manual.
(air filter cleaning, temperature control, etc.)
CAUTION
!
CAUTION
!