Elmo Rietschle G-BH1e - Manual (Page 17)

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Installation
Noise radiation
In order to reduce the noise radiation,
 do not mount pump−motor unit on
noise−conducting or noise−radiating parts
(e.g. thin walls or sheet−metal plates).
 provide pump−motor unit with
sound−insulating intermediate layers (e.g.
rubber buffers under the base of the
pump−motor unit) if necessary.
 install the pump−motor unit on a stable
foundation or on a rigid mounting surface.
This will ensure quiet and low−vibration
running of the pump−motor unit.
Components for reducing noise on the
pump−motor unit:
 Muffler (included in the scope of supply)
– On delivery the pump−motor units are
equipped with attached mufflers as
standard.
–
The mufflers considerably reduce the noise
radiation.
 Additional muffler (available as accessories):
– The additional mufflers enable a further
noise reduction.
– They may only be used in systems without
piping, i.e. with direct intake out of the
atmosphere or direct feeding into the
atmosphere.
 Noise protection hoods (available as
accessories):
– Noise protection hoods are suitable for
installation in rooms and in the open.
– They reduce the overall sound pressure
level and tonal components that are
perceived as particularly annoying.
Installation variants
Units with motors without condensation water
openings can be installed in different ways:
 horizontally,
 vertically on the cover of the side channel
housing ("cover installation"),
 vertically on a wall.
CAUTION
Danger of rusting due to collection of
condensed water in drive motor area!
Install and attach units with motors equipped
with condensation water openings only
horizontally, base at the bottom.
4.1.2 Free spaces
CAUTION
Material damage caused by overheating of
the pump−motor unit!
 It is absolutely necessary to observe the
required free spaces in order to cool the
pump−motor unit sufficiently.
 Ventilation screens and ventilation openings
must remain clear.
 The discharge air of other pump−motor units
may not be directly sucked in again!
> 100 mm > 100 mm
[ > 4 in ] [ > 4 in ]
> 100 mm
[ > 4 in ]
b a
Ne2bhxn001
a b Type
[mm] [in] [mm] [in]
2BH13..
2BH14..
> 34 > 1,34
2BH15..
> 20 > 0,79
2BH16.. > 30 > 1,18
2BH18.. > 40 > 1,57
> 53 > 2,09
Fig. 3: Free spaces