Clarke 7120310 Руководство по эксплуатации и техническому обслуживанию - Страница 6
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Water Connections
IMPORTANT: The pump MUST NOT be connected to the mains supply until all hose/pipe
installation is completed. DO NOT RUN THE PUMP DRY
NOTE: If any part of the system is to be connected to the mains water supply, ensure that
local water authority regulations are observed.
Because of the variety of possible installations, no plumbing accessories are supplied with
your pump, however accessories designed specifically for this range of pumps is available
from your nearest CLARKE dealer.
The pump must always be installed and
operated in an upright position i.e. with the
outlet port facing vertically upwards. The
fixing holes in the base should be used as
necessary to secure the pump firmly in its
operating position. Also ensure there is
adequate air circulation around the motor.
Avoid situations where there is a risk of water
coming into contact with the outside of the
pump. Neither the motor or the terminal box
are designed to be waterproof.
These notes are for guidance on how to achieve a proper working system. The diagram
(Fig. 1) above shows a typical installation at the pump.
A foot valve and filter should be fitted to the lower end of the suction hose, as illustrated in
Fig. 2, so as to retain water in the suction system and more importantly, to prevent the
possibility of large foreign objects entering the pump body.
The performance of your pump will be affected by the diameter of
the inlet pipe - any restriction will greatly reduce the flow. We strongly
recommend that you use a pipe diameter as large as practicable.
A gate valve may be installed in-line on the delivery side (Outlet Port)
of the pump which can be adjusted as required to regulate the flow
of water, it can also assist in priming the pump.
WARNING DO NOT place any such obstruction on the suction side
(inlet Port) of the pump unless it is an isolator valve in a gravity fed
system. It is also IMPORTANT to note, that these pumps should not be
operated with the delivery valve completely closed.
To prevent unnecessary strain or possible distortion to the pump, ensure
that adequate support is provided to the hoses and or pipes. They will
be considerably heavier when filled with water.
Should contaminants come into contact with the pump, flush through with cold water as
soon as possible to prevent damage to the pump.
Protect the pump and pipework from freezing. The formation of ice may cause serious
damage.
Where the pump is to be a permanent fixture, the fittings to the pump MUST be flexible, i.e.
a short piece of hose should be inserted between the rigid pipework and the pump.
-5-
Fig. 1
Filter
Foot
Valve
Fig. 2