5 Installation
5.1
Mounting the SIS 1/2 SGB
The following points must be observed during assembly:
the membrane safety valve must be installed at the highest point of the
heat generator or in the immediate vicinity of the heat generator.
between the membrane safety valve and the heat generator, a straight,
maximum 1 m long connecting pipe the size of the inlet cross-section
may be installed.
the blow-off line must be laid with a downward slope.
the cross-section of the blow-off line must be the same as the cross-
section of the membrane safety valve (see section
Technical data
).
the blow-off line should have a maximum of 2 bends and should not
exceed a length of 2 m.
the blow-off line must be designed in such a way that the pressure does
not increase when the safety valve responds.
the blow-off line must not be routed to the outside, the opening must be
clear and observable.
any heating water that may possibly escape should be safely drained
off.
if the blow-off line leads into a outlet funnel, the drain of the funnel must
have twice the diameter of the valve inlet.
en
5 Installation
16
358407 - 02 - 20022020
