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Drain piping
CAUTION
•
Following the Installation Manual, perform the drain piping work
so that water is properly drained. Apply a heat insulation so as
not to cause a dew condensation.
Inappropriate piping work may result in water leakage in the
room and wet furniture.
Drain piping
• Connect the drain hose (locally procured) size inner diameter φ16 to the drain nipple (accessory).
• Provide the indoor drain piping with proper heat insulation.
• Provide the area where the pipe connects to the indoor unit with proper heat insulation. Improper heat insulation
will cause condensation to form.
• The drain pipe must be sloping downward (at an angle of 1/100 or more), and do not run the pipe up and down
(arched shape) or allow it to form traps. Doing so may cause abnormal sounds.
• Install the collective piping as shown in the following figure.
• Do not provide any air vents. Otherwise, the drain water will spout, causing water to leak.
• Do not allow any force to be applied to the connection area with the drain pipe.
Drain nipple
(Accessory)
Drain hose φ16
(Locally procured)
10
0
mm
or
m
or
e
Dawnward slope 1/100 or more
As long as possible (Approx. 10 cm)
Check the draining
In the test run, check that water drain is properly performed and water does not leak from the connecting part of
the pipes. Check draining also when installed in heating period.
Check the water drainage is surely performed at the trial operation.
Check also no water leakage is found at the pipe connecting part.
REQUIREMENT
Enter water gradually using a kettle or a hose from drain pan of the discharge port.
CAUTION
Pour water slowly.
If it is poured urgently, water is spread inside of the indoor unit resulted
in a trouble.
Drain pipe
Water entering
Front panel
35-EN
36-EN
Содержание MMW-AP0481CHQ-E
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