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Danger: The user may take proper measures to eliminate the losses due to fault of pump
or its components resulted from over pumping (e.g. fixing immersion-proof unit, or spare
pump or storage barrel) however ZIPPER is not responsible for the incurred expenses.
MAINTENANCE
The household water-supply pumps must be regularly checked for boiler pressure (2-3 times
every year) because the pump would soon become impossible to normally run. The boiler pres-
sure is measured from the pressure gauge at its opposite of the pipe which must have a pressure
of 1,5 bar. For measuring the boiler pressure, unplug the power and make water flow from the
boiler (preparing water-collecting device). In case of insufficient air pressure inside the boiler in-
crease the pressure to the above-specified value with industrial automatic compressor. Insuffi-
cient air pressure would result in fault of household water-supply pump and wearing out of the
rubber air bag. The equipment defects resulted from insufficient boiler pressure must be excluded
in the guarantee scope.
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Danger: Before each maintenance or locating faults, the power of the pump must be cut
off. Replacement of defective cable must be undertaken by qualified technicians.
