Electrolux EXO18HEIWE Manuel D'installation page 20

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3. Water storage pipe setting
• If the indoor unit has high extra static
pressure and without water pump to
elevate the condensate water, such
as high extra static pressure duct unit,
the water storage pipe should be set
to avoid converse flow or blow water
phenomena (Fig 27).
Fig.27
Indoor unit
Plug
Water storage pipe
4. Lifting pipe setting of indoor unit with
water pump
• The length of lifting pipe should not
exceed the pump head of indoor unit
water pump.
• Pump head of big four way cassette:
750mm.
• Pump head of compact four way
cassette: 500mm(9k, 12k, 18k units).
• The drainage pipe should be set down
inclined after the lifting pipe immediately
to avoid wrong operation of water level
swithch.
• Refer the following picture for
installation reference.
More than 50mm
More than 25mm
Fig.28
B
A: Length of horizontal pipe 150mm
B: Lift height the pump head of water
pump
5. Blowhole setting
• For the concentrated drainage pipe
system, there should design a blowhole
at the highest point of main pipe to
ensure the condensate water discharge
smoothly.
The air outlet shall face down to prevent
dirt entering pipe.
Each indoor system should be installed.
The installation should be considering
the convenience for future cleaning.
• Refer the following picture for
installation reference (Fig 29).
Fig.29
Blowhole
Indoor unit
Plug
Hanger
Down incline pipe
Flexible pipe 300mm