EN
38
13
6
Installation
CAUTION!
Danger to health!
Danger to health due to drinking water
impurity
►
To avoid drinking water impurities that may
be caused if the heating water flows back into
the drinking water line, a BA-type backflow
preventer in accordance with DIN EN 1717
must be installed upstream from the product
water inlet.
We recommend installing a check
valve upstream from the product water
inlet for maintenance purposes.
If there is a combination of different
pipe materials (mixed installation), pay
attention for corrosion-causing chem-
ical properties upstream and down-
stream from the product.
For pre-treated inlet water (for exam
-
ple, with chlorine), we recommend in-
stalling an activated carbon filter up
-
stream from the product as well.
Before installing the product:
f
Rinse the pipeline network.
f
Install a particle filter (separation accuracy ≤
100 μm) max. 1 m upstream from the prod
-
uct in the direction of flow and check that it
is functioning correctly to ensure that dirt or
corrosive particles do not enter the product.
f
Install a BA-type backflow preventer in
accordance with DIN EN 1717 (e.g. AQA
therm HFB - heating fill block) upstream from
the product.
f
Attach a waste water hose on the waste
water drain connection at the stipulated
distance (as defined by DIN EN 1717) from
the highest possible waste water level. The
distance must be greater than the diameter
of the drain pipe.