FläktGroup Multi-DENCO, Руководство по эксплуатации

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Installation Multi -DENCO
38 FläktGroup DC-2013-0101-GB • Subject to modifications • R4-05/2018
5.1.2 Noise consideration at installation site
It is important noise has been considered before the installation. Options are available
to equip your
Multi -DENCO unit with sound reduction features. Noise is usually a high
consideration of DENCO-OfficeCool installations therefore. Ask your local sales repre-
sentative for details.
When planning or installing units, consider:
– The acoustic properties of the room – soft furnishings, curtains and carpets tend to
reduce sound reflections. Bare walls and vertical surfaces tend to produce larger
sound reflections which result in higher noise levels.
– Equipment placed alongside a solid wall can transmit noise through and along the
wall into adjacent areas.
– Floors with high deflections e.g. wooden floors, can amplify the noise produced by
the unit.
To reduce these problems, the following are suggestions, dependent upon site condi-
tions:
– Ensure that any vertical planes directly in front of the unit are acoustically insulated.
– Where units are situated in equipment rooms, acoustic treatment of the walls of the
equipment room should be considered.
– Acoustic pads may be placed behind equipment to reduce wall transmissions.
– Panels and cables in the air flow direction can cause vibrations and produce noise.
Rigidly support these components to a solid structure to reduce this effect.
– Positioning close control air handling units on building columns or supporting ele-
ments of the building to try to minimise noise transmission on the building. Steel floor
framing for unit equipment may be used for this purpose.
– Acoustic rubber pads for vibration insulation may be used beneath the equipment.
– Abrupt bends in pipework should be avoided by fitting long turn elbows or forming
long radius bends.
– Where pipes pass through walls or partitions, an oversize sleeve to be packed with
suitable insulation material is recommended.
– Insulate pipes and rigidly support to a solid structure of a building.