Graf 320001 Instrucciones Para La Instalacion Y Mantenimiento página 10

1.1 Safety
The relevant accident prevention regulations according to BGV C22 have to be observed when
conducting any works. Especially when inspecting tanks a second person is required for safety reasons.
Furthermore, the relevant regulations and standards have to be observed during installation, assembly,
maintenance, repair, etc. You will find information about this in the related sections of these instructions.
During all works on the system respectively on system components the overall system has to be
decommissioned and secured against unintentional restart at all times.
The tank cover has to be closed at all times, except when conducting works on the tank, otherwise there
is a very high risk of accident. Only original GRAF covers or covers approved by the company GRAF in
writing are to be used.
The company GRAF offers a comprehensive portfolio of accessories that are aligned with each other and
can be developed into complete systems. The use of accessories that have not been approved by GRAF
results in the exclusion of the warranty/guarantee.
1.2 Identification obligation
All lines and tapping points of process water have to be labelled with the words "No drinking water" in
writing or visually (DIN 1988 part 2, section 3.3.2.) in order to avoid an accidental connection to the
drinking water network even after years. Even when there are correct labels, irritations are possible, e.g.
through children. That is why all tapping points of process water have to be installed with child-proof
valves.
2.1 Overground assembly
The tanks have to be installed on firm and level ground without sharp stones and without incline
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Please observe the weight of the filled tank during assembly (1,650 kg)
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In case of risk of frost, the tanks have to be emptied completely
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When installing the tanks in closed rooms there has to be a floor drain
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Children need supervision when lingering near the tanks
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The tank must not be pressurised (water column)
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2.2 Underground installation
By using the supporting tube (Order No. 322014) the tank may be installed under ground
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(max. height above ground 1000 mm)
The tank head (Order No. 322026) has to be installed for possible revision works
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In case of ground water and hillside situation special installation provision have to be observed
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The tanks must only be installed in non-accessible green areas
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Along with the earth load no additional loads must affect the tank in any case, the distance to the
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accessible areas has to be at least 2.6 m
The tank must not be pressurised (water column)
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1. General notes
2. Installation conditions
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