Badu Tec BADU 21 Série Instructions De Montage page 43

4. Description
The plastic pumps of series BADU 21 and BADU FA 21 have been designed for
the pumping of liquids in combination with additional unit components. 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. Above mentioned hub also serves as shaft protector sleeve.
Because of the pumpʼs close coupled design, a minimum of space is required.
The pumps are driven by three-phase or single phase AC motors.
5. Placement / Installation
5.1
CAUTION
The pump is equipped with a motor protection type IP X4. When installed outside
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 sys-
tem. 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 envi-
ronmental temperature must not exceed 40°C.
Assembly and installation of the pump must be done in accordance with the rel-
evant 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, at least 50mm,
between the fan cover and the wall. In the case of BADU FA 21 pumps, at least
220mm free overhead space must be available to allow the suction strainer (143)
to be removed.
Fastening the pump to the foundation should be effected exclusively by means of
bolts, threads (or dowels) in order to avoid blocking the removal of the motor unit.
The suction and pressure lines must be mounted to the pump housing free of
tension.
Caution: The ABS-glue-connections, glue socket (721), require a longer hard-
ening period. A minimum 12 hours must be admitted between the gluing and the
first start-up of the pump.
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
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