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1.1
Safety
The relevant accident prevention regulations according to BGV C22 must be observed during all work.
Particularly when walking on the tanks, a 2nd person is required to secure the tank.
The relevant regulations and standards must additionally be taken into consideration during
installation, assembly, servicing, repair, etc. Relevant notes can be found in the corresponding
sections of these instructions.
The system or individual parts of the system must be installed by
qualified specialists.
During all work on the system or parts of the system, the entire system
must always be rendered inoperable and secured to prevent
unauthorised reactivation.
Except in the event of work carried out in the tank, the cover of the tank
must always be kept sealed, as this otherwise constitutes a maximum
risk of accident. The rain protection installed on delivery is merely
transportation packaging. It cannot be walked on and is not child-
proof; it must be replaced with a suitable cover immediately
following delivery (telescopic dome shaft with corresponding cover)!
Only original GRAF covers or covers approved in writing by GRAF must
be used.
GRAF offers an extensive range of accessories, all of which are
designed to match each other and which can be extended to form complete systems. The use of other
accessories may lead to impediments to the system's functional capability, therefore invalidating
liability for resulting damage.
1.2
Identification obligation
All service water pipes and outlets must be identified in writing with the words "Not drinking water" or
in the form of images (DIN 1988 Part 2, Para. 3.3.2.) in order to avoid inadvertent connection with the
drinking water mains even after a number of years. Mix-ups, e.g. by children, may still occur even in
the case of correct identification. All service water extraction points must therefore be installed with
valves with child-proof locks.
1. General notes
