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Attention: Filters must be pushed completely to the back, so that all filters fit
closely to the filter frame and an air bypass is avoided. Important: Examine if the
first filter fits closely to the sealing. (Figure 51)
Figure 50: pushing and clamping of the fil-
ters to the rear wall
6
Installation
6.1
Heat exchanger connection
6.1.1
General notes
Before connecting the heat exchanger, the piping system must be rinsed thoroughly.
An absolutely stress-free connection has to be ensured and the transmission of
vibrations and longitudinal expansion between the device and the piping system
must be safely prevented.
In order to avoid corrosion due to water, the requirements regarding water qual-
ity, professional installation, commissioning and maintenance of VDI 2035 sheet
2 have to be complied.
Connection pipes with thread:
To prevent damage of the heat exchanger connection, it is necessary to hold against with a pipe
wrench during the screwing (Figure 52).
34/115
Figure 51: check, if filter lie on the sealing
V07-19.0
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