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LA 25TU-2 - LA 40TU-2
5
Installation
5.1 General
The device must be installed on a permanently level, smooth
and horizontal surface. The frame around the device must lie
tightly against the floor to guarantee adequate sound insula-
tion, to prevent water-bearing parts from cooling out and to
protect the inside of the device from small animals. If this is not
the case, additional insulation measures may be necessary. To
prevent small animals from entering the inside of the device, it
may be necessary to seal the connection hole in the base plate,
for example. Furthermore, the heat pump should be set up so
that the air outlet direction of the ventilator is perpendicular to
the main wind direction to allow unrestricted defrosting of the
evaporator.The heat pump is designed for installation on even
ground. If the installation conditions differ (installation on a
platform or flat roof) or there is a greater risk of the heat pump
tipping over (due to an exposed position or high wind expo-
sure), additional protection against tipping over must be pro-
vided. The responsibility for the heat pump installation lies with
the specialist system construction company. During the instal-
lation, local requirements such as building regulations, static
load of the building, and wind exposure must be accounted for.
It must be possible to carry out maintenance work without hin-
drance. This is ensured if the clearance displayed below is
maintained.
1 m
The specified dimensions are valid for stand-alone installation
only.
ATTENTION!
Do not restrict or block the area around the air intake or outlet.
ATTENTION!
Observe country-specific building regulations!
ATTENTION!
For installation close to walls the physical influences of the
building must be considered. No windows or doors should be
present in the area surrounding the air outlet of the ventilator.
ATTENTION!
In cases of installation close to a wall, there may be more
sediment in the air inlet and outlet areas due to the air current.
The colder outside air outlet should discharge in such a way as
to not increase the heat losses in heated neighbouring rooms.
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Installation in a hollow or in an inner courtyard is not
permitted because cooled air collects at ground level and is
drawn in again by the heat pump during lengthy operation.
5.2 Condensate pipe
Condensate that forms during operation must be drained off
frost-free. To ensure proper drainage, the heat pump must be
mounted horizontally. The condensate pipe must have a mini-
mum diameter of 50 mm and must be fed into a sewer in such
a way that it is safe from frost. Do not discharge the condensate
directly into clearing tanks or cesspits, as aggressive vapours or
a condensed water pipe which has not been laid in a frost-free
manner could destroy the evaporator.
The frost line can vary according to the climatic region. The
regulations of the countries in question must be observed.
6
2 m
6.1 General
The following connections need to be established on the heat
pump:
452163.66.72 · FD 9912
ATTENTION!
ATTENTION!
Assembly
Heating system flows and returns
Condensate outflow
Control line to the heat pump manager
Power supply
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