Elpumps JPV 800 Gebrauchsanweisung Seite 25

If as a result of the circumstances of installation it is necessary to establish a shaft, then design it in such a way that there is
sufficient place in it for the person performing the work to maintain or possibly repair the pump. Install a ladder fixed in the
wall of the shaft. Provide for the protection of the shaft from subsoil water, ventilation and locking. Ensure well ventilation in
the shaft, for avoiding possible vapour condensation which may damage the apparatus if gets into the motor space or the
switchbox. DO NOT install the pump assembly directly in the well, because it involves risk of accident.
the suction pipe longer than 9 (8) meter. If one piece of 90º arch and one piece of T piece seem to be insufficient, then it is
advisable to apply so-called arch pieces for the formation of the necessary bends, because the application of elbow pieces
increases the friction head and thus decreases the suction capacity. The slope of the suction pipe should be 6%. Connect
the delivery pipe to the delivery stud of the apparatus, possibly using flexible pipe section. Perform the sealing of the pipe
connections carefully, using sealing material (Teflon cord, Teflon band).
FASTENING
Place the water supply apparatus on a surface equipped with solid covering and fasten it. The fastening should be stable;
make sure that it cannot loosen in case of possible vibration. Get the screws necessary for the fastening (2 pieces) into the
bores or openings formed on the foot and tighten them. It is recommended to equip the screws with washers as well in order
for them to bear against as great surface as possible. Select the screws in accordance with the covering (e.g. using steel
dowels, concreted anchor screws, etc.).
START-UP
The first step of starting up is the filling of the pump and the suction pipe with water. It can be done after unscrewing the cap
screw found on the top part of the pump, or through the filling tunnel, which is installed in the delivery pipe. The filling-up
should be done until the air bubbles stop then the filling opening should be closed.
Check the tightness of the system.
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Insert the connection plug into the mains socket (See: Safety regulations). When turning on the switch found
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on the switchbox of the pump, the pump will start and begin to supply water.
If the flow of liquid is stopped, switch off the pump.
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There is a thermal protection relay in the motor of the pump, which will switch off the motor in case of over
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heating, but it will switch on again automatically after cooling down. In case of lack of liquid, this relay cannot
hinder the damage of the plastic parts found in the pump.
Perform the electric connection,
protection of the motor in accordance
with the regulations. The installation
may be done only by a technician.
The connection to the mains should
meet the regulations of the standards
concerning the shock-proof protection.
The suction side pipeline should be
formed from a pipe of nominal diameter
equal to that of the suction stud in such
a way that its highest point is at the
suction stud of the pump. Following
the delivery stud, it is reasonable to
install a T branch line, with a shut-off
valve and filling funnel installed in the
upwards branch. In order to avoid the
air's getting in the pump as a result of
the depression of the water, prepare
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