NBS – Fan coil unit
TECHNICAL DOCUMENTATION
Silencer
LWZ
-AT01
Construction subject to change.
No return possible.
Version: 06.05.21 | Page 17
SILENCER
NOTE
Silencer is ordered and supplied separately.
For noise reduction purposes in the return air and supply air,
it is possible to install a silencer. The silencers are equipped
with vertically arranged flow-optimised silencing baffles. The
baffles consist of mineral fibre boards and are covered with
unmetabolisable glass silk, i.e. no bacteria can deposit on the
glass silk, and they are not flammable according to DIN 4102.
In order to reduce noise, while ensuring minimum pressure
loss, the length of the baffles and their spacing depend on the
desired silencing effect. The cover of the baffles can be made
of smooth or perforated plates, as desired, which can also be
combined on one or both sides or one or two half-covers. An
intermediate piece (box) of 500 mm is required between the
air outlet or the air intake of the NBS and the silencer.
Due to their device-related design, the baffle distance and
total length, SCHAKO's silencers provide an optimum
silencing value while ensuring minimum pressure loss.
NOTE
The technical data of the ZMWS-NBS can be found directly in
the MWS documentation or SCHAKO's selection programme.
NOTE
In cooling mode, silencers have to be insulated on the outside
with cold insulation.
Model
MB
=
contains sound-absorbing baffles MWK-MB. For use
at a main interference frequency between 63 Hz
and 500 Hz (standard).
OB
=
contains sound-absorbing baffles MWK-OB. For use
at a main interference frequency between 500 Hz
and 8000 Hz.
Length
1000
=
1000 mm with a baffle length of 0500 mm
(standard)
1250
=
1250 mm with a baffle length of 0750 mm
1500
=
1500 mm with a baffle length of 1000 mm
1750
=
1750 mm with a baffle length of 1250 mm
2000
=
2000 mm with a baffle length of 1500 mm
2250
=
2250 mm with a baffle length of 1750 mm
2500
=
2500 mm with a baffle length of 2000 mm
3000
=
3000 mm with a baffle length of 2500 mm
Baffle thickness (D)
100
=
100 mm (standard)
200 =
200 mm
Number of baffles
xx =
xx baffles (from 1 to maximum number of baffles
according to table, always 2-digit)
Dimensions
Model
B
(mm)
H
(mm)
D
(mm)
N
L
(mm)
-100-1
739
341.0
100
4
1000
1250
1500
1750
2000
2250
2500
3000
200
2
-100-2
1209
100
8
200
4
-100-3
1719
100
11
200
6
-150-1
857
463.5
100
5
200
3
-150-2
1357
100
9
200
5
-150-3
1807
100
12
200
6
N = maximum number of baffles | S = gap width
Baffle silencer
Silencing baffles
