Installation Instructions
HD50 Solar Pump
Assembly
drawing
The solar pump must be connected to 36 volt solar Panels
When connecting the pump make sure the electrical red
pump lead on the pump is connected to the positive on the
Solar Panels. The plugs provided should make the
electrical connections correctly.
The pump and motor must be protected from the weather.
When assembling the pump make sure the flow switch is
plugged into the motor and the water flow is in the correct
direction.
Flow
Switch
Foot or
Check valve
direction of
water flow
Remove strainer
if using as a
check valve
Primming plug
Draining plug
Installation
Pipe used on the suction and discharge should
be 25mm if the pipe length exceeds 100 Metre
then a pipe friction table should be checked and
if required a larger pipe used.
Care should be taken with the suction pipe.
Suction pipes should be layed with an even
gradient so that air trapped in the pipe is
minimised when primming the pump. The
vertical suction is limited to 6 metres at sea
level.
A foot or check valve must be used in the
suction pipe.
When first primming the pump it is easier to
remove the flow switch and pour water directly
in to pump outlet. Later the primming plug can
be removed to bleed trapped air. All air has to
be removed for satisfactory pump operation.
Pipe should be buried to stop the sun from
heating the water and effecting the suction
ability of the pump.
If sucking from a dam etc consideration should
be given to floating the foot valve and using a
large suction strainer to prohibit foreign matter
entering the pump
Remove strainer
and replace with
large suction strainer
to help stop foreign
matter entering the
pump.
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