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Installation and operating instructions Wilo-SiBoost Smart (FC) ... Helix V/... Helix VE/... Helix EXCEL 37
In the following overview, pumps of the standard
series Helix EXCEL up to a maximum motor power
of 7.5 kW are taken into account with frequency
converters:
The actual rated motor power of the delivered
pumps can be seen on the rating plate on
themotor.
For motor powers not listed here and/or other
pump series, see the individual pump noise value
from the installation and operating instructions
for the pumps or from the catalogue information
on the pumps. With the following procedure, it is
possible to approximate the overall noise level of
the complete system using the noise value for an
individual pump of the type supplied.
WARNING! Health hazard!
In the event of sound-pressure levels over 80
dB(A), operating personnel and persons who are
nearby must wear suitable hearing protection.
7 Installation
7.1 Installation location
• The pressure boosting system is installed in the
technical control room or in a dry, well ventilated
and frost-proof, separate room that can be locked
(e.g. as required by DIN 1988).
• Adequately dimensioned floor drainage (drain
connection or similar) must be provided in the
installation room.
• No harmful gases may penetrate into the room or
be present there.
• Provide adequate space for maintenance work.
The leading dimensions can be found in the
accompanying installation plan. The system
should be freely accessible from at least two sides.
• Pay attention for adequate freedom of movement
to open the door of the controller (left side at look
towards the control panel) and for maintenance in
the control unit (at least 1000mm - see Figure 14)
Nominal motor power (kW)
1,1 2,2 3,2 4,2 5,5 6,5 7,5
Sound-pressure level max. (**)
Lpa in [dB(A)]
1 pump 59 63 66 68 70 70 70
2 pumps 62 66 69 71 73 73 73
3 pumps 64 68 71 73 75 75 75
4 pumps 65 69 72 74 76 76 76
(**) Werte für 60Hz (veränderbare Drehzahl) mit Toleranz von +3dB(A)
Lpa = Arbeitsplatzbezogener Emissionspegel in dB(A);
Calculation
Single pump .... dB(A)
2 pumps, total +3 dB(A) (tolerance +0,5)
3 pumps, total +4,5 dB(A) (tolerance +1)
4 pumps, total +6 dB(A) (tolerance +1,5)
Overall noise level = .... dB(A)
Example (pressure boosting system with 4 pumps)
Single pump 74 dB(A)
4 pumps, total +6 dB(A) (tolerance +3)
Overall noise level = 80...83 dB(A)
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