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6.3.1 Opening the Cabinet
For feeding in an external cable or inserting a
sensor, the "upper side panel" (2) and the
"upper front panel" (1) must be removed; to
this end, the "top cover" (3) need to be loos-
ened as well.
Sequence of dismantling steps :
1. Remove the "upper front panel" (1) by
loosening the (two) sheet metal screws (a)
and raising the front panel in the direction
of the arrow.
2. Loosen the two rear sheet metal screws (b)
on the top cover (3);
Slide cover approx. 6 mm toward the rear
(in direction of arrow) and raise.
3. Loosen the two screws (c), move "upper
side panel" (2) away from the rear panel
(approx. 20 mm), slide "upper side panel"
approx. 6 mm toward the front (in direction
of arrow), raise and remove.
4. To remove the "bottom front panel" (4)
(only required for checking the sacrificial
anode or the immersion heater) it suffices
to loosen the lower two fastening screws
(d) and to slide the "bottom front panel"
6 mm toward the top and then to remove it.
7.
COMMISSIONING
7.1 Hot Water Circuit
Caution! The HPWH may only be operated with the unit filled with water!
7.1.1 Hot Water Circuit Requirements
On the consumer side, the following materials may be incorporated into the hot water circuit:
-
Copper
-
Stainless steel
-
Brass
-
Plastic
Depending on the materials used in the hot water circuit (installation to be provided by the customer), corro-
sion damage may occur due to material incompatibilities. This must be taken into account, in particular
where galvanised materials and those containing aluminium are used. A filter may have to be provided if
there is a danger of water becoming contaminated during operation.
1
a
4
d
3
b
approx. 6 m m
approx. 6 m m
approx. 20 mm
Fig. 9: Opening the HPWH
20
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