Seite 9
ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: +49 (0) 8682 – 89340 • E-Mail: info@zuwa.de
DESCAL
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6. Open ball valve, switch on pump and flush
the installation.
Caution: Damage due to dry run
> Monitor fluid level in the tank and, if
necessary, refill anti scale agent to
prevent air entering the solar circuit.
> Take a look at the filter inside the
vision panel for sedimentations.
In case the fine filter is clogged with
stains stop working and clean the filter
sieve as follows.
6.1 Cleaning the filter during application
Warning
Danger of chemical burn through leaking liquid
> Collect agent with an appropriate cup and refill into tank
.
> Close ball valve beneath tank.
> Turn on pump for 2-3 seconds.
> Place cup beneath pressure relief valve and open the valve (see also chapter 7,
picture 1).
> Carefully unscrew the filter casing and refill the the liquid inside into tank.
> Pull off filter and clean with plenty of water.