28
A
Testing the drainage
You should test the drainage after completing the
installation. Prepare a little water about 2.0 liters.
1 Turn the cover drain pump, then pull it out.
2 Pour water into the indoor unit as shown in figure.
Note
If you do not pour water inside the water
supply intake, water may spill from the indoor
unit.
3 Confirm that the water flows out through the drain hose.
Note
You can check the drainage only when the air
conditioner is in cool mode.
4 Reassemble the cover drain pump.
Cover drain pump
Drainpipe and drain hose installation
Drainpipe Connection
1 The drain pipe should be installed within 100mm from the
flexible hose, lift up from 100mm to 550mm and lift down
20mm or more.
2 Install horizontal drainpipe with a slope of 1/100 or more
and fix it by hanger space of 1~1.5m.
3 Install the air vent in the horizontal drainpipe to prevent
water flow back to the indoor unit.
You may not need to install it if there were
proper slope in the horizontal drainpipe.
Note
4 The flexible hose should not be installed upward position,
it may cause water flow back to the indoor unit.
5 Install U-trap at the end of the drainpipe to prevent a nasty
smell to reach the indoor unit.
Flexible hose
Air vent
300mm or less
Horizontal drainpipe
more than 1/100 slope
100~550mm
or less
1~1.5m
100mm
or more
Ceiling
Hanger
Max. allowable axis gap
Max. 20mm
Indoor
Unit
Install horizontally
Be horizontal
Indoor
Unit
Flexible hose
Max. 30˚
Indoor
Unit
Flexible hose Installation
Summary of Contents for NS 4CREA Series
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