SAFETY WARNINGS & INSTRUCTIONS
ZIPPER MASCHINEN GmbH www.Zipper-Maschinen.at
10
ZI-GP1200 / ZI-HWW1200N
INSTALLATION
Before starting, the suction pipeline and the pressure pipeline shall be fixed onto the pump. The
suction pipeline sucks the water from pond to the pump and the suction connection is at side of the
pump. The suction pipeline shall be kept absolutely tight, or the suction would be impaired or even
impossible.
For ensuring tightness of the suction pipeline, the plastic threads must be wrapped in tape and the
steel or copper threads with hemp fiber or tape.
The suction pipeline must be fixed with a non-return valve, or after stop of pump the system pressure
would reduce through the suction pipeline which if household water supply unit or automatic sprinkler
is used which would result in frequent out-controlled on/off of pump. In principle, it is suggested to
directly install a non-return valve between the pump inlet side and the suction pipeline because by
this way after shutdown of equipment the suction pipeline will not be idle and always under pressure
or the suction hose would be broken. In addition a suction valve may be fixed in front of suction
pipeline which certainly is not absolutely necessary to fix.
Pumps have self-suction function, i.e. they are merely required to prime before they are firstly used.
The case of pumps of all types is filled with water from the filling port on the case. Before filling, the
screwed cap is opened and water is filled to the pump until air is invisible from the case. It should be
noted that during the filling process, air bubble would occur inside the pump. In this case please
slightly shake the pump in different directions to eliminate the bubble and then resume filling. Repeat
the above process for several runs until water just reaches under the filling port. Then, screw the cap
on the filling port again. The cap must not be excessively tightened or the pump case or pipe thread
would be damaged.
The idle running time of the suction pipeline shall not exceed 7 minutes. In order to shorten the idle
time, it is suggested to fully fill water into suction pipeline (including the fore-filter) before starting.
The maximum suction height of all self-suction pumps is 8m, i.e. the vertical distance between the
pump and the plane of water pond surface must not exceed 8m. The horizontal section of the suction
pipeline must be slightly inclined from the water source towards the pump, otherwise air would be
sucked from pipeline and thus the pump would be impossible to normally run.
Only after all connections of pipelines are completed and the pump is fully filled with water, may the
power be switched on and the pump started. During suction, the discharge port must be opened so
as to completely remove air from the entire system and form hydraulic pressure. If then hydraulic
pressure is not formed after the above specified maximum suction time, the pump must be switched
off and then eliminate the troubles as per chapter “Troubleshooting”.
It should be noted that the above data is the maximum value of the pumping pipeline, which would
be reduced because of overcoming the suction dept and the fixed components (such as pressure
pipeline, bends and fore-filter).
-
Pumps: They are merely allowed to connect with household water-supply pipeline with reinforced
hose and the hose commonly used in garden is not allowed because they would be soon cracked
or broken due to abrasion, long-term pressure action and ageing of materials.
-
Pump fore-filter: The suction pipeline shall be fixed with a filter to prevent the pump from damage
by the silt, slurry or other abrasive materials in the pumped medium. Installation of filter in the
pressure pipe is not allowed.
-
Pressure pipeline: The pressure pipeline is used to feed the water from the pump to the outlet
(tap or water outlet) and its connection with the pressure pipeline is at the top of pump case. In
order to minimize friction and thus pressure loss, the pipe diameter must be at least ¾ inch.
-
Danger: During installation, do not connect the cable of pump with net.
-
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 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.
-
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.