Kranzle 122 Silent, Operating Manual

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10
Please note - important:
Lack of water
Lack of water occurs more often than you
probably believe. The more powerful a
high-cleaner is the greater is the danger
that a lack of water occurs. If there is only
an insufficient amount of water available,
cavitation (water-gas mixture) 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.
If the metered quantity of water is too small, you have to use a diffe-
rent water connection, guaranteeing the necessary output.
Lack of water leads to an accelerated wear of the joints (no guaran-
tee)
A minimum water quantity of 7 litres per minute must be available to guarantee a
trouble-free operation of the Kränzle 122 Silent.
Water supply
Please pay attention to the regulations of your waterworks company!
In accordance with DIN EN 61770, the machine may not be directly
connected 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 con-
sidered as drinking water.
Also indirect connection to the public drinking water supply lines is permissible 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.