65
INSTALLATION OF DRAIN LINE OF INDOOR UNIT
20-2 Installation of drain line of ducted indoor unit with Optional drain pump
20-2-1 Instructions :
You can use a polyethylene tube as the drain pipe (out-dia.29-31mm, in-dia.25mm).
The drain pipe is field supplied.
To prevent water from flowing backwards into the air conditioner while the air conditioner stops,
the drain pipe must be sloped down toward outdoor (outlet-side) at a degree of over 1/ 50.
Also avoid any bulge or water deposit.
Do not drag the drainpipe violently when connecting to prevent the body from being pulled. Meanwhile, one
support point should be set every 1~1.5m to prevent the drain pipe from yielding.
Or you can tie the drain pipe with the connecting pipe to fix it.
In the case of prolonged drainpipe, you had better tighten its indoor part with a protection tube to prevent it
from loosing.
If the outlet of the drain pipe is higher than the body's pump joint, the pipe should be arranged as vertically as
possible. And the lift distance must be less than 200mm, otherwise the water will overflow when the air
conditioner stops. (Only available for the unit with pump.)
The end of the drain pipe should be over 50mm higher than the ground or the bottom of the drainage chute,
and do not immerse it in water. If you discharge the water directly into sewage, be sure to make a U-form aqua
seal by bending the pipe up to prevent the smelly gas entering the house through the drain pipe.
20-2-2 Drainage test
Check whether the drain pipe is unhindered.
New built house should have this test done before paving the ceiling.
20-2-3 Steps for drainage test
(1)
Remove the test cover (Rotate the test cover to opening up), and stow water of about 2000 ml
to the water receiver through the stow tube.
(2)
Turn on the power, and operate the air conditioner under the "COOLING" mode.
Listen to the sound of the drain pump.
Check whether the water is discharger well (a lag of 1min is allowed before discharging, according to
the length of the drain pipe), and check whether water leaks from the joints.
(3)
Stop the air conditioner, turn off the power, and reset the test cover to its original position.
Test cap
Stow tube
< 200mm
1-1.5m
Lean over 1/50
< 550mm
Stow tube
Summary of Contents for ClassiCool 53KDMT12N-718
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