Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 4
Construction subject to change.
No return possible!
06.02.2018
Version:
Description
Silencing of the duct silencer type RS-N in accordance with the
absorption principle is done by means of an annular chamber
filled with mineral wool according to DIN 4102 A2 non-flamma-
ble, mineral wool with glass silk cover. The RS-M type contains
an additional central baffle with mineral wool filling and glass
silk cover which is covered with a galvanised perforated sheet in
abrasion-resistant manner toward the air flow.
For maintenance, service, retrofitting, etc., inspection openings
in sufficient number and size must be provided on-site.
Baffles with frame profile in nozzle design reduce the pressure
loss by up to 55% compared with conventional baffles. This
gives high energy-saving in the operation of the system!
The baffles and baffle silencers are delivered in a hygienic de-
sign to VDI 6022. The objective of the VDI 6022 "Hygienic plan-
ning, design, operation and maintenance of air-conditioning
installations" is a hygienically impeccable interior air quality, i.e.,
avoidance of microbial contamination of the inhaled air. Accord-
ingly, installation components must not emit any substances, fi-
bres or odours hazardous to health, and must not promote the
growth of microorganisms. The hygienic qualification tests and
the data verified within the scope of the RAL quality inspection
are basic quality characteristics of our sound isolation compo-
nents.
The mineral wool silencers type MWS-OB / MWS-MB have been
successfully tested by TÜV SÜD Life Service in accordance with
the following rules:
For maintenance, service, retrofitting, etc., inspection openings
in sufficient number and size must be provided on-site.
Installation of baffles or silencers:
When baffles are delivered separately, the determined perform-
ance data are only reached if the manufacturer's installation in-
structions and the recognised technical rules are observed. The
mineral wool silencer should be laid out inside the ventilation in-
stallation in front of the air filter so that possible fibre separa-
tions stay in the filter.
Attention:
The baffle height <200mm cannot be delivered in the nozzle de-
sign.
Design only possible in folded form!
The baffle silencers from SCHAKO have been awarded the RAL
quality mark 595 by the RAL Quality Association. The SCHAKO
KG is a member of the RAL Quality Association for Silencers
The silencers have the following ATEX marking:
These silencers meet the regulations of the ATEX directives and
can be used in ventilation systems in areas subject to explosion
hazards.
The silences have been certified for explosion protection group
II for Zones 1, 2 & 21, 22.
Zones 1 and 2 represent the application range containing gases,
while Zones 21 and 22 represent the application range contain-
ing dusts.
Classification by zone must be established by the system oper-
ator or planner in compliance with current standards.
Note:
In explosion-protected zones, only devices that have an ATEX
approval for this use may be used.
Technical data, information
- VDI 6022, Sheet 1: Hygienic requirements of ventilation
and air-conditioning systems
- VDI 6022, Sheet 2: Hygienic requirements of ventilation
and air-conditioning systems - Measurement methods and
investigations during hygienic controls and hygienic in-
spections
- DIN 1946, Sheet 2: Air-conditioning technology - Health re-
quirements
- The grounding terminals of the silencers must be connected
to the potential bonding.
QUALITY MARK
BAFFLE-TYPE SILENCER
II 2 G IIB T6
II 2 D T80°C
II 3 G IIB T6
II 3 D T80°C
EPS 09 ATEX 2 158 X
EPS 09 ATEX 2 156 X
