Installation of connection pipes and cables
In order to connect the indoor and outdoor unit the connection pipes and cables
(preinstalled and fixed to the indoor unit) need to be installed through the wall.
Drill a wall duct of a diameter of at least 85 mm, with a slight descent through
the wall of approximately 5% to the outside.
The hole must admit the refrigerant connection pipes, cables and condensate
tube. All lines are covered with a common protective shell. Since the connection
lines have a length of 5 m the lead through should be executed with the assis-
tance of another person.
Mounting of the condensate pipe
Make sure that the condensate pipe is always mounted with a natural descent to
the outside, 5% descent is recommended. Furthermore make sure that the con-
densate pipe is neither bent nor kinked.
Both – bent and kinked – could obstruct the correct flow of the condensate. If it
is not possible to realise, a descent, condensate pump must be installed.
If condensate is drained to the sewerage the condensate pipe must be equipped
with a siphon in order to prevent a noise pollution or any other nuisance.
In case the outdoor unit is operated at low ambient temperatures or if the pipe
may be subjected to ambient temperatures below 0ºC, condensate pipe must be
protected against icing.
The condensate pipe must be isolated against water from condensation.
If condensate is drained to a storage container, the container must not be
sealed. Otherwise back pressure will rise up and will therefore obstruct the cor-
rect flow of the condensate.
The end of the condensate pipe must not touch the maximum level of the con-
densate inside the container.
After installation the condensate pipe must be checked for density by testing the
pipe with rinsing water.
Indoor unit in-
stallation re-
quires the assis-
tance of another
person!
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