Hydraulic installation
24 Installation and maintenance instructions ecoTEC 0020173113_01
6
1
2
3
6.5 Fit the discharge pipe on the expansion relief valve (exam-
ple: VUW boiler)
> Insert a seal (1) in the cap nut (2).
> Screw the discharge pipe (3) onto the expansion relief
valve.
> Make the drain line routing as short as possible and slop-
ing away from the boiler.
> Allow the line to terminate in such a way that nobody
can be injured and no cable or other electrical compo-
nents can be damaged if water or steam is ejected.
> Note that the end of the line must be visible.
> If the pipe cannot fall to a safe discharge point then the
Vaillant remote pressure relief valve mounting kit can be
used to provide a suitable way to achieve this.
> Ensure the discharge pipe work is installed, routed and
terminated correctly to minimise the risk of freezing up.
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