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20. INSTALLATION OF DRAIN LINE OF INDOOR UNIT
20-1 Installation of drain line of ducted indoor unit without drain pump
20-1-1 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 drain pipe violently when connecting to prevent the body from being pulled. Meanwhile,
one support point should be set every 1~1.5m to prevent the drainpipe from yielding.
Or you can tie the drain pipe with the connecting pipe to fix it.
In the case of prolonged drain pipe, you had better tighten its indoor part with a protection tube to
prevent it from loosing.
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.
20-1-2 Drainage test
Check whether the drain pipe is unhindered.
New built house should have this test done before paving the ceiling.
20-1-3 Steps for drainage test
Remove the test cover, and stow water of about 2000 ml to the water receiver through the stow
tube, check whether the drain pipe is unhindered.
Stow tube
Lean over 1/50
1-1.5m
Stow tube
Summary of Contents for ClassiCool 53KDMT12N-718
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