Installation; Operation - OSIP DWS 80 Handbuch

E N G L I S H
1. ASSUMPTION
 Please read these instructions carefully before use.
Damages resulting as consequence of instructions
disregards will not be covered by manufacturer's
warranty.
 Please pay particular attention to the chapter
relating the safety instructions.
 Save these instructions and refer to them anytime your
are in doubt.
2. APPLICATION
These submersible electric pumps are made mainly for the
applications listed below:
 Continuously rated
 Water lift over 9 metres depth:
 With ejector P20 up to 20 metres
 With ejector P30 up to 30 metres
 Irrigations
 Pressure boosting
 Used particularly on hill
3. USE CONDITIONS
 Liquid temperature must not exceed 35° C.
 These pumps are suitable to be used in to chemically
neutral liquids.
 Do not pump hydrocarbons or any other
inflammable liquid.
 Pumping liquids containing sand or other abrasive
substances may reduce sensitively the life of the
pumps. In this case we recommend to assemble a
strainer at the suction.
 Never run pump dry. Dry runs may damage seals and
cause possible hazards of burns to persons handling
the pump.
4. SAFETY
Careless use of electric appliances is always
dangerous. Electric appliances used into water
represent a potential hazards of electric shock. Thus
we strongly recommend to pay full attention to the next
instructions. If you still have doubts, contact an expert
electrician or the manufacturer.
Eventual connection of a power cord must performed
by an expert electrician in accordance of the
regulations is use in your Country
HAZARD! Do not touch the plug with wet
hands! Switch off and unplug the pump before any
maintenance.
Do not cut or engrave the power cable.
Mains system must be provided of a residual current
device of max 30 mA capacity.

5. INSTALLATION

Installation may result to be fairly complicated therefore it
should be carried out by a skilled person.
Install your pump as close to the well as possible in a dry
and environmentally protected place where temperature
should not exceed 40° C.
 Use the fewest possible elbows and fittings to connect
the pipe from well to the pump suction port.
 The pipe can be either rigid or flexible with smooth
internal surface in order to reduce at minimum the flow
resistance.
 The minimum pipe I.D. must be equal to the suction port
and if you lift water deeper than 4 metres I.D. pipe should
be 30% larger.
 Suction pipe must be equipped of foot valve and strainer.
 Suction pipe must be installed straight without bends to
avoid air pockets.
 Remove all impurities from the pump housing before first
use.
 Check the free motor rotation before start acting with a
screwdriver into the groove of the fan side motor shaft.
 Sit the pump on a smooth surface and fix it with proper
bolts in order to avoid vibrations.

6. OPERATION

Before starting the pump should be filled to prime. Thus, fill
the pump housing completely through the nut hole located
next to the outlet (fig. 2).
Please do not insist to run the pump if water does not come
in two-three minutes and refill the pump once again. If water
does not come at all it is necessary to check eventual
losses of the system.
Repeat the prime operation anytime the pump returns to
service after long breaks.
IMPORTANT: if sand is pumped it is necessary to install
a strainer in the suction side. The presence of sand into
the pump renders the warranty null and void.
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