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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.
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MAINTENANCE
The household water-supply pumps must be regularly checked for boiler pressure (2-3 times eve-
ry year) because the pump would soon become impossible to normally run. The boiler pressure 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 increase
the pressure to the above-specified value with industrial automatic compressor. Insufficient 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.
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