
Assembly
n
Check the contents of the packaging for com-
pleteness and check the unit for visible trans-
port damage. Immediately notify your contract
partner of any deficiencies.
n
The storage tank may not be transported with
the fine-tube heat exchanger installed.
n
The unit must be assembled on site.
n
For all connection ports, ensure that the
threading is fully engaged.
n
In the selection and/or sequence of the installa-
tion materials used for the plant, any possible
electrochemical processes must be taken into
consideration in accordance with the recog-
nised good practices (mixed-metal installa-
tions!).
n
The potential equalisation of the piping must
take place in accordance with DIN 50927. This
type of corrosion results in the formation of cor-
rosion cells. Voltage is present in corrosion
cells between the anode and cathode area.
The processes are dependent on one another,
however, their separation from one another can
vary greatly. Corrosion cells can appear as a
result of different potentials, as the case is with
contact corrosion. Different metals are in con-
ductive contact with one another through an
ion-conducting medium (water). All metallic
plug-in (built-in) components with a large met-
allic surface (e.g. flange heating cartridge, fine-
tube heat exchangers, electric heaters) must
be installed so that they are electrically insu-
lated from the storage tank. To protect the
aforementioned plug-in (built-in) components
against current-induced corrosion, we recom-
mend installing a defined contact resistor of
approx. 600 Ohm (unless already installed in
the components at the factory).
Fig. 5: Floor set-up
Minimum spacing for indoor unit
300
300
500
500
Fig. 6: Minimum spacing for indoor unit (all meas-
urements in mm)
The distance to the rear wall must be considered if
a fine-tube heat exchanger must be installed in a
storage tank. In this case, the distance must be at
least 500 mm.
13
Summary of Contents for LWM IM 300
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