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5. Installation Instructions
5.1 Before Installation
Prior to installation and use, please fully check whether the
electric pump is damaged during transportation or storage,
for example, whether any cable or outgoing line or plug (if
provided) is in a perfect condition. In case of any damage,
please have the replacement or repair carried out by a
specialist. The insulation resistance must be greater than
50MΩ.
5.2 Installation
During installation, the complete machine shall be fixed. The
inlet and outlet pipes must be supported separately, and their
weight must not be supported entirely by the pump body.
1. Use a steel or rubber pipe (which must not be too soft so that
it does not flatten when absorbed) to connect the bottom valve
and the inlet end of the electric pump. Please make sure that
the inlet pipeline and its connections are sealed off and present
no air leakage.
2. Connect the outlet pipe firmly to prevent
water from splashing on the motor and hence
causing electrical leakage of the electric
pump. When a rubber pipe is used, pay attention to its
temperature resistance limit to ensure that the pipe will not be
deformed by heat, because such deformation might break the
pipe and hence cause water leakage.
3. After connecting the inlet pipe to the inlet of the electric
pump, please make sure that the end of the inlet pipe, where
the bottom valve and the strainer are located, is submerged
in water. To guarantee reliable operation of the electric pump,
please use an effective strainer with the bottom valve, which
must be more than 30cm away from the water bottom, for the
purpose of preventing sludge or impurities being absorbed to
the pump chamber and hence affecting the operation of the
pump.
4. At the same time, it is required that the installation of the
pipelines should be as short as possible and try to avoid
multiple connectors. The suction height shall not exceed the
maximum suction requirement of the electric pump.
5.3 During Usage
1. Prior to the initial use, please fill the chamber of the electric pump with water first and then power it on
to avoid dry running.
A self-priming pump will start only when its pump body is filled with water and it is unnecessary to fill the
inlet pipe with water. In case of a non-self-priming pump, both its body and inlet pipe shall be filled with
water and air shall be drained completely.
For areas with high sand content, it is advised to install a Y-shaped filter at the inlet pipe to prevent the
sand from entering into the pump body and causing abraision on the impeller or blocking the impeller.
Suction(Hs)
Head(H)
Ӌ
30c
m
Y-shaped Filter
