English
1
Installation
Mounting and installation must be performed by a qualified
specialist company!
The unit must be installed in a room protected from frost and
with short pipe runs.
The enamelled cylinders (in accordance with DIN 4753) are
suitable for drinking water.
Mixed installation is permitted. When connecting the heating
system, all applicable regulations must also be adhered to.
For connection to the domestic water supply, the regulations
valid for the local domestic water supply must be observed.
2
Recommendation
In order to level transient pressure or water impact in the cold
water network and avoid unnecessary loss of water, we recom-
mend installing a fitted expansion vessel with a perfusion device.
3
Commissioning
Ensure that the water supply is turned on and the buffer tank
is filled before commissioning. The initial filling and commis-
sioning must be carried out by an authorised specialist com-
pany. The entire system, including all factory-assembled
components, should be inspected to ensure that everything
is working properly and that there is no leakage.
The operational reliability of the safety valve must be
checked at regular intervals. We recommend having an an-
nual maintenance carried out by a qualified specialist com-
pany.
The electrical insert (if present) should be de-scaled every
year, or more frequently in particularly hard water areas.
This should be combined with a functional test.
We recommended having the cylinder cleaned and the sys-
tem checked once a year.
Reasonable operation can save a considerable amount of
energy. The hot water temperature should not exceed 45 °C
when the heat pump is in operation.
ATTENTION!
According to the specifications of the German Technical and Scientific
Association for Gas and Water (DVGW), the magnesium anode should
initially be inspected by after-sales service after 2 years of use and then
at regular intervals and replaced when necessary (replace anode with
protective current of less than 0.3 mA).
EN-2
376760 / 372840 / 370080 / 376730 · FD 9801
The connection must be carried out in accordance with DIN
1988 and DIN 4753 Part 1. All connecting sleeves which are
not required should be sealed with vent plugs.
The bare-tube heat exchanger needs to be flushed with
water prior to connecting the hot water pipeline.
The maximum permissible operating overpressure indicated
on the type plate must not be exceeded.
It may be necessary to mount a pressure reducer.
Electrical installations should only be connected by author-
ised electricians according to the corresponding circuit dia-
gram. All relevant requirements of the utility company and
VDE regulations must be observed.
WWSP 335 - WWSP 770