Product Manual
14
Functional details
Please note: Lack of water
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 insucient amount of water available,
cavitation (water-gas mixture) arises inside
the high pressure pump, which is normally
noticed too late or even not at all. The high
pressure pump will be destroyed. Please
check the available quantity of water by fil-
ling a bucket with liter scale for one minute.
Required minimum quantity of water (see technical data).
If the metered quantity of water is too small, you have to use a dif-
ferent water connection, guaranteeing the necessary output. Lack of
water leads to an accelerated wear of the joints (no warranty).
Water supply
Please pay attention to the regulations of your waterworks com-
pany! In accordance with DIN EN 61770, the high pressure cleaner
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 Aairs) if a non-return val-
ve 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 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.