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Ferdinand Schad KG
Steigstraße 25-27
D-78600 Kolbingen
Telephone +49 (0) 74 63 - 980 - 0
Fax +49 (0) 74 63 - 980 - 200
[email protected]
www.schako.de
Additional operating instructions
according to ATEX 94/9/EC
Silencer
RS-N/RS-M/
MWK-OB/MWS-OB/MWK-MB/MWS-MB
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Contents
Construction subject to change. No return possible!
Operating and mounting instructions
according to ATEX for RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 2 06.02.2018Version:
General conditions ...............................................................................................................................3
General description and instructions ..........................................................................................................................................3
Personnel qualification and training ...........................................................................................................................................3
Safety-conscious work ...............................................................................................................................................................3
Designated use ..........................................................................................................................................................................3
Delivery and storage ..................................................................................................................................................................3
Mounting information ................................................................................................................................................................3
Maintenance ..............................................................................................................................................................................3
Hazard caused by non-observance of the safety instructions ....................................................................................................3
Models and dimensions ......................................................................................................................... 5
Dimensions ................................................................................................................................................................................5
Dimensions of accessories ........................................................................................................................................................7
Information regarding assembly and commissioning ................................................................................................................8
Information regarding maintenance and inspection ...................................................................................................................8
Certificate of conformity ......................................................................................................................... 9
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 3
Construction subject to change. No return possible!
06.02.2018Version:
General conditions
General description and instructions
These additional operating instructions must be observed prior
to mounting and commissioning the device.
These additional operating instructions contain basic information regarding its use in areas subject to explosion hazards to be
observed during assembly, operation and maintenance.
Prior to mounting and commissioning and during maintenance
work, the present additional operating instructions must be read
by the installer and the responsible skilled personnel/system
operator!
Personnel qualification and training
The personnel for assembly, inspection and maintenance must
have the relevant qualification for this work.
The area of responsibility, competence and monitoring of the
personnel must be exactly regulated by the system operator. If
the personnel does not have the required knowledge, it must be
trained and instructed. Moreover, the system operator must ensure that the contents of the additional operating instructions
are understood completely by the personnel.
Safety-conscious work
The safety instructions given in these additional operating instructions, the existing national and international regulations on
explosion protection, accident prevention and the system operator's internal work, operating and safety regulations must be
observed.
Designated use
The devices have been designed for use in ventilation systems
in areas subject to explosion hazards according to ATEX of Category II, Zones 1, 2 and Category III, Zones 21, 22.
These devices are not suitable for use in unreleased Ex zones.
The operating safety of the delivered devices is only guaranteed
when used in accordance with their designated use.
Delivery and storage
Upon receipt, the devices must be checked for completeness
and transport damage. If delivered incompletely or damaged,
the forwarding company and the SCHAKO KG have to be informed immediately.
The device must not be exposed directly to weather, solar radiation and moisture.
Mounting information
Mounting, electrical connection work and commissioning must
be carried out by skilled personnel only and in accordance with
the recognised technical rules and the safety and accident prevention regulations.
Maintenance
Only a device subjected to proper maintenance and kept in perfect condition can guarantee safe and reliable operation.
When defective parts are replaced with spare parts, only SCHAKO original spare parts may be used. The SCHAKO KG cannot
be held liable for any damage caused by using spare parts that
are not original and will not give any warranty.
Hazard caused by non-observance of the safety instructions
Non-observance of the safety instructions can result both in
putting persons and the environment and operating units at risk.
Likewise, non-observance of the safety instructions will result in
the loss of any claims for damages.
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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!
06.02.2018Version:
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-flammable, 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 design to VDI 6022. The objective of the VDI 6022 "Hygienic planning, 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. Accordingly, installation components must not emit any substances, fibres 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 components.
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 performance data are only reached if the manufacturer's installation instructions and the recognised technical rules are observed. The
mineral wool silencer should be laid out inside the ventilation installation in front of the air filter so that possible fibre separations stay in the filter.
Attention:
The baffle height <200mm cannot be delivered in the nozzle design.
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 containing dusts.
Classification by zone must be established by the system operator 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 inspections
- 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
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
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Construction subject to change. No return possible!
06.02.2018Version:
Models and dimensions
Dimensions
RS-N
x
P
= available
= not available
= Packing thickness
outside
external
Available sizes
NW ød øD
P (mm)
50 100 150
71 69 175 275 -
80 78 180 280 -
90 88 190 290 -
100 98 200 300 -
112 110 212 312 -
125 123 225 325 -
140 138 240 340 -
150 148 250 350 -
160 158 260 360 -
180 178 280 380 -
200 198 300 400 -
224 222 325 425 -
250 248 350 450 -
280 278 380 480 580
300 298 400 500 600
315 313 415 515 615
350 348 450 550 650
355 353 455 555 655
400 398 500 600 700
450 448 - 650 750
500 498 - 700 800
560 558 - 760 860
600 598 - 800 900
630 628 - 830 930
710 708 - 910 1010
Selection chart packing thickness
NW L=500 L=950 L=1450 L=1950
P (mm) P (mm) P (mm) P (mm)
50 100 150 50 100 150 50 100 150 50 100 150
71 xx-xx-x--x--
80 xx-xx-x--x--
90 xx-xx-x--x--
100 xx-xx-x--x--
112 xx-xx-x--x--
125 xx-xx-x--x--
140 xx-xx-x--x--
150 xx-xx-xx--x-
160 xx-xx-xx--x-
180 xx-xx-xx--x-
200 xx-xx-xx--x-
224 xx-xx-xx--x-
250 xx-xx-xx--x-
280 xx-xxxxxx- -x
300 xx-xxxxxx- -x
315 xx-xxxxxx- -x
350 xx-xxxxxx- -x
355 xx-xxxxxx- -x
400 xx-xxxxxx- -x
450 ----xx-xx--x
500 ----xx-xx--x
560 -----x-xx--x
600 -----x-xx--x
630 -----x-xx--x
710 -----x-xx--x
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
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Construction subject to change. No return possible!
06.02.2018Version:
RS-M
x
P
= available
= not available
= Packing thickness
T = Baffle width
Central baffle
external
external
Available sizes
NW ød øD T
(mm)
P (mm)
50 100 150
350 348 450 550 650 60
355 353 455 555 655 60
400 398 500 600 700 60
450 448 550 650 750 60
500 498 600 700 800 75
560 558 - 760 860 100
600 598 - 800 900 100
630 628 - 830 930 100
710 708 - 910 1010 150
Selection chart packing thickness
NW L=950 L=1450 L=1950
P (mm) P (mm) P (mm)
50 100 150 50 100 150 50 100 150
350 xxxxxx--x
355 xxxxxx--x
400 xxxxxx--x
450 xxxxxx--x
500 xxxxxx--x
560 -xx-xx--x
600 -xx-xx--x
630 -xx-xx--x
710 -xx-xx--x
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
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Construction subject to change. No return possible!
06.02.2018Version:
Silencing baffle type MWK-OB/MWK-MB
Baffle silencer type MWS-OB/MWS-MB
Available sizes
All combined lengths, heights and widths available!
If desired, also available as D 300!
Technical data on request.
The model D300 is assembled with mineral fibre boards
100+200 mm.
Detail X
at D=100/200 and H2>
200 at D=300 and/or at H2<200
round design rectangular design
Dimensions of accessories
Additional angled frame
(at an extra charge)
Detail Y
L1=L2 H1=H2
D = 100
S = >
40, <100
B1 (mm)
D = 200
S = >50, <200
B1 (mm)
n(mm) (mm)
500
750
1000
1250
1500
1750
2000
2250
2500
3000
250 140 - 200 250 - 400 1
500 280 - 400 500 - 800 2
750 420 - 600 750 - 1200 3
1000 560 - 800 1000 - 1600 4
1250 700 - 1000 1250 - 2000 5
1500 840 - 1200 1500 - 2400 6
1750 980 - 1400 1750 - 2800 7
2000 1120 - 1600 2000 - 3200 8
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 8
Construction subject to change. No return possible!
06.02.2018Version:
Information regarding assembly and commissioning
Prior to being installed in the ventilation system, the silencers
must be checked for damage. Damaged silencers must not be
installed.
The device may only be used in accordance with its designated
use in air ventilation systems for supply air and return air.
Use only approved fastening material for mounting.
No additional parts must be fastened to the silencer.
The silencer must be connected to the ventilation duct network
on both sides in electrically conducting fashion.
In order to avoid the risk static charges, the silencer must be
connected to the potential bonding on the grounding connection
provided for this purpose.
Make sure that the ventilation systems are not subjected to any
anomalous operating conditions, such as vibrations, pressure
surges or high proportions of solids in the medium.
Information regarding maintenance and inspection
Proper maintenance increases operational safety and the service life of the device. This is why the devices should be subjected
to regular inspection.
If inspection dates are prescribed by law, they must be complied
with.
The operating personnel must be informed, prior to starting
maintenance and inspection work.
The personal safety measures must be looked up in the safety
data sheet. Hazard caused by contact or inhaling hazardous substances must be excluded by taking appropriate safety measures.
Prior to maintenance or inspection, all system components upand downstream of the device must be switched off and secured
against being switched on again.
The following inspection criteria must be observed
:
- Visual inspection of the device
- Check the fastening of the device
- Check the grounding connection for tight fit and good contact
- Functional check
- For additional inspections, please refer to the technical documentation or additional maintenance instructions
Page 9
Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 9
Construction subject to change. No return possible!
06.02.2018Version:
Certificate of conformity
Page 10
Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 10
Construction subject to change. No return possible!
06.02.2018Version:
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Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 11
Construction subject to change. No return possible!
06.02.2018Version:
Page 12
Operating and mounting instructions according to ATEX for
RS-N/RS-M/MWK-OB/MWS-OB/MWK-MB/MWS-MB
Z10/03 - 12
Construction subject to change. No return possible!
06.02.2018Version:
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