Speck pumpen BADU 73 Serie Instructions De Montage Et D'utilisation page 22

increase the longevity of your pump. When installed in a closed room, e.g. a
plant room, a cellar or a pump pit, a sufficiently dimensioned drainage
must be provided.
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 re-
levant 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 bed-plate with cork
layers or on materials absorbing vibrations (e.g. foamed materials of adequate
hardness).
Pipes must be mounted free from tension and, if necessary, elastically. If requi-
red, pipe compensators must be installed.
During installation, make sure that there is enough space available to permit
disassembly of the pump; see directions in the dimensional drawing. Fastening
the pump to the foundation should be effected exclusively by means of bolts,
threads or dowels in order to avoid blocking the disassembly of the pump. Inlet
and outlet-pipes must be mounted to the pump casing free from tension.
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.
Expansions of the pipes caused by temperature must be compensated by ap-
propriate means. We recommend the installation of compensators between
pump and pipe. Sudden closing of valves in pipes must be avoided. The resul-
tant pressure impacts caused by such shut offs often exceed the max. permis-
sible housing pressure of the pump by far. To absorb sudden pressure impacts,
dampers or expansion tanks must be installed.
Caution : With BADU 73 the ABS-glue-connections and glue socket
(721/721.1) require a longer hardening period. A minimum 12 hours must be
admitted between the gluing and the first start-up of the pump.
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