Vaillant ecoTEC plus 837 Service Manual download pdf (Page 24)

Hydraulic installation

24 Installation and maintenance instructions ecoTEC plus 0020116700_06

> Insert a seal (1) in the cap nut (2).

> Screw the discharge pipe (3) onto the expansion relief

valve.

> Make the discharge line routing as short as possible and

sloping 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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Vaillant ecoTEC plus 837 Service Manual Page 24