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10
Please note - important!
Lack of water
Necessary minimum quantity of water: see technical data.
If the metered quantity of water is too small, you have to use a
different water connection, guaranteeing the necessary output.
Lack of water leads to an accelerated wear of the joints
(guarantee void).
Water supply
Please pay attention to the regulations of your waterworks company! In
accordance with DIN EN 61770, the machine may not be directly connec-
ted to the public drinking water supply lines. A brief connection however is
permissible according to DVGW (German Association for Gas and Water
Affairs) if a non-return valve with tube ventilator (Kränzle order no. 41.016
4) is built into the water supply. Once the water has passed through the
non-return valve it is no longer considered as drinking water.
Also indirect connection to the public drinking water supply lines is per-
missible by way of free emission in accordance with EN 61 770; e.g. by
using a reservoir with a float valve. Direct connection to a non-drinking
water supply line is permissible.
Lack of water occurs more often than you
probably believe. The more powerful a high-
pressure cleaner is the greater is the danger
that a lack of water occurs. If there is only
an insufficient amount of water available,
cavitation arises inside the pump, which is
normally noticed too late or even not at all.
The pump will be destroyed.
Please check the available quantity of water
by filling a bucket with litre scale for one
minute.
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