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- Note: In case of broken power plug the following guarantee will be invalid. It must be re-
placed with genuine connection cable to the maintenance (guarantee) unit in a charging
mode. For extension of connection cable, merely the extended connection cable may be
replaced which must have an outside diameter at least equal to that of the original cable.
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 auto-
matic 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 tigh-
tened 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 7m, i.e. the vertical distance
between the pump and the plane of water pond surface must not exceed 7m. The horizontal sec-
tion 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 mate-
rials.
- 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.
