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The motor shaft also serves as the pump shaft on which the impeller is
mounted. The seal for the shaft is a bellows-type mechanical seal arranged on
a plastic impeller hub. This guarantees a positive electrical separation between
the pool water and the electric motor. Because of the pump's close coupled
design, a minimum of space is required. The pumps are driven by three phase
motors. Integrated in the pump housing is a strainer basket (143), which keeps
coarse impurities from the pump's interior.
5.
Placement / Installation
5.1
ACHTUNG
The pump is equipped with a motor protection type IP X4. When installed
out side we recommend providing some protection against the rain. This will
increase the longevity of your pump. When installed in a closed room, like for
example in a plant room, in a cellar or in a pump pit a sufficiently dimensioned
drainage must be foreseen. The size of the floor drain depends on the size of
the pool, as well as on the circulation flow rate and on possible leakages within
the circulation system. At the installation site effective ventilation must be
provided for in order to prevent condensation and also to ensure sufficient
cooling of the pump motor and of other relevant appliances like control cabinets
and control units. The environmental temperature must not exceed 40°C.
Assembly and installation of the pump must be done in accordance with the
relevant regulations e.g. DIN 4109, in order to reduce structure-borne noise and
air-borne noise. To do so the pump can be installed on a socle with cork layers
or for example foamed material (with the corresponding hardness). Pipes must
be mounted free of tension, if necessary they have to be arranged elastically. If
required, pipe compensators must be installed.
During installation, make sure that there is enough space available to permit
subsequent disassembly of the motor unit in the direction of the motor fan
(minimum 120 mm) and the strainer basket (143) towards above (minimum 380
mm), see directions in the dimensional drawing. Fastening the pump to the
foundation should be effected exclusively by means of bolts, threads (or do-
wels) in order to avoid blocking the removal of the motor unit!
5.2 Installation
The pump must by no means be used as a supportive point for the pipes. The
pipes must be installed in such a way that no force or torque will be transmitted
to the pump (e.g. by distortion or thermal expansion). The pipe must have a
supportive fixation point directly in front of the pump so that its connection to
the pump is free of tension. This should be done by using suitable compensa-
tors.
If the pipe strength is exceeded, leaks can occur at the pump itself or at the
flange connections, which could result in vast losses of medium.
The suction pipe should be installed with a continuous upward angle and the
pressure pipe with a continuous downward angle in order to avoid air locks.
We recommend the installation of check valves and shutoff valves, according to
the type of pump or plant.
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