System air S-RA1 Series User manual

S-RA1
Smoke Control Damper - AAsingle
Handbook

2/31 | S-RA1
Table of Contents
Overview .........................................................3
Technical Parameters ..................................................5
Diagrams .........................................................7
Dimensions & Weights ..................................................13
Ordering Code ......................................................15
Product Handling .....................................................16
Installation ........................................................18
Electrical Parameters ...................................................23
Operation Manual ....................................................29

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Description
S-RA1 smoke control dampers operate with mechanical or natural smoke and heat extraction systems. They remove
poisonous gases, smoke and fire and can also supply clean air to fire compartments.
S-RA1 dampers have an actuator without a spring. Thus, they have two safety positions: an “open” position and a
“closed” one. Power is necessary for the smoke control dampers.
The “Installation Methods” section shows the types of installations that are permitted.
Special Properties
• The pressure level is 2 (-1000 Pa ... 300 Pa).
• The casing leakage class C (compliant with EN 1751).
• The blade leakage class 3 (compliant with EN 1751).
Fire Resistivity
S-RA1 smoke control dampers have a CE certification that meets the EU’s Construction Products Regulation and
complies with Standard EN 12101-8:2011. EN 1366-10:2011 + A1:2017, and EN 1366-2:2015 are the reference
Standards for the tests. EN 13501-4:2016 is the reference Standard for the Classification.
Resistivity rating for damper installed on the duct: E600 120 (ved - i↔o) S1000 Cmod AAsingle
Types of Activation
•B230 - Smoke control damper with an activation mechanism with a Belimo actuator (230V AC) and auxiliary
switches.
•B24 - Smoke control damper with an activation mechanism with a Belimo actuator (24V AC/DC) and auxiliary
switches.
•B24-W - Smoke control damper with an activation mechanism with a Belimo actuator (24V AC/DC) and auxiliary
switches, with provided cable connectors for the supply and communication unit (communication unit not part of the
mechanism).
•B24-SR - Smoke control damper with an activation mechanism with a modulating Belimo actuator (24V AC/DC; 0(2)
V...10 V DC) and auxiliary switches. Modulating actuators have the possibility to open the blade at a desired angle.
•BST0 - Smoke control damper with an activation mechanism with a Belimo actuator (AC/DC 24 V, supply through
communication unit: AC 230 V) and with a Belimo supply and communication unit BKNE230-24 (other
communication units on demand).
Accessories
You can find more information about accessories at design.systemair.com.
• GE1-S-RA1: Extension with Grille for S-RA1

4/31 | S-RA1
Design
The casing and the blade of the S-RA1 are made of a galvanized sheet metal. A rubber seal prevents leaks of heat or
smoke. The casing has connections on two sides with a rubber seal to attach to duct with nominal internal dimension.
The dampers actuator of the S-RA1 is always accessible.
Composition of Materials
The product contains these materials:
• galvanized sheet metal
• rubber
• PE tapes and foil
• galvanized steel fasteners
The manufacturing processes of these materials agree with local regulations. The product does not contain dangerous
materials.
Product Parts
P6
P4
P7
P5
P3
P1P2
A1
A1.2
A1.1
S-RA1.../GE1-S-RA1...
Legend:
P1 - Damper casing
P2 - Damper blade
P3 - Actuator
P4 - Inspection lid
P5 - Communication unit (only for BST0 activation type)
P6 - Holder for communication unit (only for B24T-W activation type)
P7 - Product label
A1 - Extension with Grille (GE1-S-RA1) is not part of S-RA1 delivery.
A1.1 - Extended ductwork
A1.2 - Grid

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Technical Parameters
Durability Test
• Test procedure with 10000 cycles and actuator control
(rotation from 0° to 90°)
• No change of the necessary properties.
• Test procedure with 10000 cycles and actuator control
for “mod” classification (rotation from 45° to 60°)
• No change of the necessary properties.
Tested Pressures
Maximum pressure at ambient temperatures • 1000 Pa
Maximum pressure during fire • 300 Pa
Safe Position Open or closed
Possible Installations Refer to the "Installation Methods" section
Direction of the Airflow Both direction for supply or extract
Permitted air velocity during blade movement 12 m/s
Side with Fire Protection Both sides: (i<->o) - symmetrical
Closing and Opening Time Motor running time: <60 s / 90°
Closed or Open Status Indicator Microswitches that are part of the mechanism actuator
signal the closed or open status.
Environmental Conditions for Operation (not fire scenario)
The temperatures must be: -20 °C ... 50 °C
Relative humidity: Less than 95% (3K5, EN 60721-3-3)
Product protected from: Weather, rain and water from other sources
Condensation: Cannot form on the product
Icing: Cannot form on the product
Access for Inspection
The inspection is possible through the grille when available or through an inspection opening on the damper body.
Connection and actuator accessible from outside.
Maintenance Maintenance is not necessary. A dry-cleaning procedure
can be mandatory in some countries.
Inspections
Obey local laws for the minimum time between inspection procedures. When not specified the maximum interval
between inspections is 6 months.
Tightness of the Blade Class 3 of standard EN 1751 at 500 Pa
Tightness of the Housing Class C of standard EN 1751 at 500 Pa
EC Directives
2006/42/EC Machinery Directive
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility Directive
Driving Actuator Types
Belimo BEN... ...230; ...24; ...24-ST; ...24-SR
Transportation and Storage The temperature range must be: -30...50 °C
Make sure that the damper blade is in the closed position during transportation and protected from weather
disruptions. The storage of the smoke control damper must be indoors.

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Assessed Performance
19 CE 1396
Systemair Production a.s.
Hlavná 371, 900 43 Kalinkovo, Slovakia
1396-CPR-0207 S-RA1
EN 12101-8 : 2011
Smoke control damper
Nominal activation conditions/sensitivity Pass
Response delay (response time) Opening/closure time proven. Duration: <60 s / 90°
Operational reliability Cmod: 20.000 cycles (modulated)
Fire resistance: E600 120 (ved - i↔o) S1000 Cmod AAsingle
Resistivity depends on installation method and situation
• integrity E
maintenance of the cross section (under E)
mechanical stability (under E)
• smoke leakage S
Durability of response delay AA - Automatic Activation. Opening/closure time proven.
Duration: <60 s / 90°
Durability of operational reliability Cmod: 20.000 cycles. Cycle duration: <120 s

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Diagrams
The pressure drop, and A-weighted total discharged sound power level depend on the nominal diameter of the
damper and air flow volume at different duct pressures. The type of activation does not influence the airflow
parameter, therefore only one activation type is shown in the diagrams.
Diagrams for Extract
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
200 300 500 m³/h
50 80 100 l/s
50
100
200
Pa
Size: 100 Size: 125
Size: 140
25
30
35
40
45
50
55
25
30
35
40
45
50 55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
300 500 1000 m³/h
100 200 300 l/s
20
50
100
Pa
Size: 160
Size: 180
Size: 200
Size: 250
25
30
35
40
45
50
55
25
30
35
40
45
50 55
25
30
35
40
45
50 55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
1000 2000 3000 m³/h
200 500 1000 l/s
10
20
50
Pa
Size: 280
Size: 315 Size: 400
Size: 450
25
30
35
40
45
50
55
25
30
35 40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
2000 3000 5000 m³/h
800 1000 2000 l/s
5
10
20
Pa
Size: 500
Size: 560
Size: 630
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55

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S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
250 500 m³/h
50 100 150 l/s
200
400
600
800
1000
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 125, 0 %
Size: 125, 25 %
Size: 125, 50 %
Size: 125, 75 %
Size: 125, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
500 1000 m³/h
100 200 300 l/s
200
400
600
800
1000
Pa
25 dB(A)
35 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 200, 0 %
Size: 200, 25 %
Size: 200, 50 %
Size: 200, 75 %
Size: 200, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
1000 2000 m³/h
250 500 750 l/s
250
500
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 315, 0 %
Size: 315, 25 %
Size: 315, 50 %
Size: 315, 75 %
Size: 315, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
2500 5000 7500 m³/h
400 800 1200 1600 2000 l/s
100
200
300
400
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 630, 0 %
Size: 630, 25 %
Size: 630, 50 %
Size: 630, 75 %
Legend:
Pa - Pressure drop (ps)
m3/h; l/s - Airflow volume (qv)

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Diagrams for Supply
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
200 300 500 m³/h
50 100 200 l/s
20
50
100
200
Pa
Size: 100 Size: 125
Size: 140
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
500 1000 2000
m³/h
100 200 500 l/s
10
50
100
Pa
Size: 160 Size: 180
Size: 200
Size: 250
25
30
35
40
45 50
55
25
30
35
40
45
50
55
25
30
35 40
45
50 55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
1000 2000 5000 m³/h
300 500 1000 l/s
5
10
50
Pa
Size: 280
Size: 315 Size: 400
Size: 450
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230
Pressure drop & A-weighted sound power level in dB(A)
3000 5000 8000 m³/h
800 1000 2000 l/s
5
10
20
Pa
Size: 500
Size: 560
Size: 630
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55

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S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
250 500 750 m³/h
40 80 120 160 200 l/s
200
400
600
800
Pa
25 dB(A)
35 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 125, 0 %
Size: 125, 25 %
Size: 125, 50 %
Size: 125, 75 %
Size: 125, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
500 1000 1500 m³/h
100 200 300 400 500
l/s
250
500
Pa
25 dB(A)
35 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 200, 0 %
Size: 200, 25 %
Size: 200, 50 %
Size: 200, 75 %
Size: 200, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
1000 2000 3000 m³/h
250 500 750 l/s
100
200
300
400
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 315, 0 %
Size: 315, 25 %
Size: 315, 50 %
Size: 315, 75 %
Size: 315, 100 %
S-RA1-...-B24-SR
Pressure drop & A-weighted sound power level in dB(A)
2000 4000 6000 8000 10000 m³/h
1000 2000 3000
l/s
100
200
300
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 630, 0 %
Size: 630, 25 %
Size: 630, 50 %
Size: 630, 75 %
Legend:
Pa - Pressure drop (ps)
m3/h; l/s - Airflow volume (qv)

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Diagrams for Extract with Included GE1-S-RA1 Accessory
S-RA1-...-B230 + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
100 200 300 m³/h
30 50 100 l/s
20
50
100
200
Pa
Size: 100 Size: 125
Size: 140
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230 + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
200 500 1000 m³/h
100 200 300 l/s
20
50
100
Pa
Size: 160
Size: 180
Size: 200
Size: 250
25
30
35 40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230 + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
500 1000 2000 m³/h
200 300 500 l/s
10
20
50
Pa
Size: 280
Size: 315 Size: 400
Size: 450
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55
S-RA1-...-B230 + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
2000 3000 5000 m³/h
500 800 1000 l/s
5
10
20
Pa
Size: 500
Size: 560
Size: 630
25
30
35
40
45
50
55
25
30
35
40
45
50
55
25
30
35
40
45
50
55

12/31 | S-RA1
S-RA1-...-B24-SR + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
100 200 300 400 m³/h
20 40 60 80 100 120 l/s
200
400
600
800
1000
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 125, 0 %
Size: 125, 25 %
Size: 125, 50 %
Size: 125, 75 %
Size: 125, 100 %
S-RA1-...-B24-SR + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
250 500 750 1000
m³/h
100 200 l/s
200
400
600
800
1000
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 200, 0 %
Size: 200, 25 %
Size: 200, 50 %
Size: 200, 75 %
Size: 200, 100 %
S-RA1-...-B24-SR + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
500 1000 1500 m³/h
100 200 300 400 500 l/s
250
500
750
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 315, 0 %
Size: 315, 25 %
Size: 315, 50 %
Size: 315, 75 %
Size: 315, 100 %
S-RA1-...-B24-SR + GE1-S-RA1-...-
Pressure drop & A-weighted sound power level in dB(A)
1000 2000 3000 4000 5000 6000
m³/h
500 1000 1500 l/s
250
500
Pa
25 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
50 dB(A)
55 dB(A)
Size: 630, 0 %
Size: 630, 25 %
Size: 630, 50 %
Size: 630, 75 %
Legend:
Pa - Pressure drop (ps)
m3/h; l/s - Airflow volume (qv)

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Dimensions & Weights
Dimensions
45
310 R2
45
DN-2,5
DN+15*
(220)
10
L1*
(mm)
S-RA1.../GE1-S-RA1...
L2*≤75
10
R1
Notes:
Accessory GE1-S-RA1 sold separately. GE1-S-RA1 is not part of the S-RA1 delivery.
* Inclusive grille
S-RA1 DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
R1
mm
-40 -28 -20 -15 -10 0 10 23 35 50 68 88 110 135 160 190 225
R2-170 -158 -150 -145 -140 -130 -120 -108 -95 -80 -63 -43 -20 5 30 60 95
L1270 290 340 400 450 520
L250 70 120 180 230 300

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Free Area of S-RA1 Without Grille
Av(m2)DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
S-RA1 0,005 0,008 0,01 0,012 0,014 0,019 0,024 0,032 0,04 0,051 0,067 0,086 0,111 0,143 0,178 0,226 0,289
Free Area of GE1-S-RA1 Accessory
Av(m2)DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
GE1-S-RA1 0,003 0,005 0,007 0,008 0,010 0,013 0,016 0,022 0,027 0,035 0,046 0,060 0,077 0,097 0,121 0,154 0,198
Weights of S-RA1 Without Grille
m (kg) DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
S-RA1
B230, B24, B24-SR 2,2 2,4 2,5 2,7 2,8 3 3,2 3,4 3,7 4,1 4,5 5 5,7 6,5 7,2 8,2 9,4
B24-W 2,3 2,5 2,6 2,8 2,9 3,1 3,3 3,6 3,8 4,2 4,6 5,1 5,8 6,6 7,4 8,3 9,5
BST0 3 3,2 3,3 3,5 3,6 3,8 4 4,2 4,5 4,9 5,3 5,8 6,5 7,3 8 9 10,2
Weights of S-RA1 with GE1-S-RA1 Accessory
m (kg) DN (mm)
100 125 140 150 160 180 200 225 250 280 315 355 400 450 500 560 630
GE1-S-RA1
B230, B24, B24-SR 2,4 2,7 2,8 3,1 3,3 3,6 4,1 4,4 4,9 5,4 6,5 7,3 8,4 10,2 11,5 14,1 16,3
B24-W 2,5 2,8 2,9 3,2 3,4 3,7 4,2 4,6 5 5,5 6,6 7,4 8,5 10,3 11,7 14,2 16,4
BST0 3,2 3,5 3,6 3,9 4,1 4,4 4,9 5,2 5,7 6,2 7,3 8,1 9,2 11 12,3 14,9 17,1

15/31 | S-RA1
Ordering Codes
S-RA1 -
DN
A
-
DN
Dimension, øDN:
100 mm, 125 mm, 140 mm, 150 mm, 160 mm, 180 mm, 200 mm, 225 mm, 250 mm, 280 mm, 315 mm, 355 mm,
400 mm, 450 mm, 500 mm, 560 mm, 630 mm
A - Type of Activation
B230 - 230V AC Belimo actuator
B24 - 24V AC/DC Belimo actuator
B24-W - 24V AC/DC Belimo actuator & wire connector for supply and communication unit
B24-SR - 24V AC/DC Belimo actuator, modulated 0 V ...10 V
BST0 - 230V AC supply and communication unit BKNE230-24 & 24V AC/DC Belimo actuator.
Example of the Ordering Code
S-RA1-630-B24-SR
Single compartment smoke control damper with nominal diameter 630 mm. Activated by a 24 V modulated Belimo
actuator (0 V ... 10 V).

16/31 | S-RA1
Product Handling
Warning
Some damper parts can have sharp edges. To prevent injuries, use gloves when you install or move the damper. If
you use or operate the damper incorrectly, there is a risk of:
- electric shock.
- fire.
- other damage.
Ensure that installation is performed by a trained person. The S-RA1 is made of sheet metal.Be careful when you
move the smoke control damper. It is necessary to move the bigger dampers with suitable lifting equipment (forklift,
crane).Please follow both textual and graphic instructions.
1. Unpacking:
• Remove the packaging
2. Functionality check:
• Perform damper's functionality check (see "Operation Manual" section).
3. Placing the damper:
• Prepare the opening and/or duct connection surfaces as per the desired installation type.
• Carefully lift the smoke control damper with the forklift, crane or manually.
• Place the damper into the duct until the casings stop.
4. Fixing the damper:
Note: Make sure to continually check the alignment of the damper against the duct connection when performing the
next steps.
• Fix the damper to the duct using suitable self-tapping screws through the duct installations in connection area.
• Verify there is no skewing of the damper body by measuring diagonally the nominal dimension.
5. Electrical connection:
• Check the wiring diagram of dampers activation mechanism and connect the damper accordingly to the on-site
system and power supply.
6. Finishing:
• Clean the damper from the debris and excess material from the filling or insulation.
• Perform damper's functionality check (see "Operation Manual" section).
• Connect the continuous duct or mount the removed grille.
• Create and/or fill out the Operating Journal included with the smoke control damper (Operating Journal can be also
downloaded at design.systemair.com)

17/31 | S-RA1
2
1
1. 2.
3. 4.
5. 6.
i
2 × F1 F1
1 2
F1
Legend for Product Handling
1 - Smoke control damper S-RA1
2 - Connected metal ductwork
F1 - Screw M4×13 mm

18/31 | S-RA1
Installation Methods
DMV S-RA1
DN 100 ... DN 630
E600 120 (ved i ↔ o)
S1000 CMOD AAsingle
d)
EN 1366-9
D1V
E600 120 (ved i ↔ o)
S1000 CMOD AAsingle
d)
Notes:
d) - Duct per EN 1366-9
ved - Duct placement, vertically oriented damper
Installation Rules
• The duct connected to the smoke control damper must be supported or hung in such a way that the damper does not
carry its weight. The damper must not support any part of the surrounding construction or wall which could cause
damage and consequent damper failure.
• Easy access to mechanism and internal parts during inspection must be considered during damper placement.
• The minimum distance between the smoke control damper bodies installed in separate ducts must be 200 mm (refer
to Standard EN 1366-2).
• The minimum distance between the smoke control damper and the wall or ceiling must be 75 mm.
• If the grilles are not original accessories, there must be a minimum clearance between the damper blade in its open
position and self-standing grille. The clearance between the damper blade and these components must be 200 mm
(refer to EN 1366-10).
• Lists of all permitted installation methods are provided in Handbook.
Warning
• Make sure that only approved personnel performs the installation.
• Obey the written instructions and the illustrations in selected installation method.

19/31 | S-RA1
Installation DMV
Vertically Oriented Damper, in the Metal Duct
The S-RA1 smoke control damper can be installed on these types of ductwork:
• “single” ductwork from sheet metal tested to EN 1366-9 or with higher density/thickness.
• builders work ducts (created on site).
This section does not give information about duct hanger rules. These rules are related to the weight of the duct and
they must have static approval.
Hang the smoke control dampers from solid ceiling slabs with rods that have a thread. The dimension of these rods
must be sufficient for the weight of the damper.
If you use anchors in the ceiling, make sure that you use a fire- rated anchor (with the correct fire rating certificate).
1. Prepare the duct connections:
a. Clean the ductwork connection surfaces.
b. Follow ductwork manufacturer instructions and if needed apply sealant on the ductwork connection surfaces.
2. Follow instructions in "Product Handling" section.
3. Perform damper's functionality check (see "Operation Manual" section).
CAUTION:
• Make sure that the closest hanger is placed not further than 150 mm from the duct connection.
• If the hanger system is longer than 1,5 m, fire-resistant insulation is necessary (see hanger manufacturer instruction).
• Make sure that it is always possible to access the smoke control damper internally for maintenance. If necessary,
make inspection panel in the connecting duct.
• Duct with lower resistivities will decrease the fire resistivity of smoke control damper.
• The maximum fire resistance for in-duct installation is EI120 with pressure level 2 (-1000 Pa … 300 Pa).
Installation Distances
The minimum distance between the damper body and the wall or ceiling must be 75 mm (refer to Standard EN
1366-2). The minimum distance between two damper bodies installed in separate ducts must be 200 mm.
DMV
S-RA1
DN 100 ... DN 630
E600 120 (ved i ↔ o)
S1000 CMOD AAsingle
d)
EN 1366-9
Notes:
d) - Duct per EN 1366-9
ved - Duct placement, vertically oriented damper

20/31 | S-RA1
310
DN
≤150
310
DN
≤150L2
21A1
1 2
12
(mm)
Y1 2
(mm)
Y2
2×
DMV
1
F1
2
1
F1
A1
F1
Y2
Y1
Y1
Legend for installation DMV:
1 - Smoke control damper S-RA1
2 - Connected metal ductwork
A1 - Extension with grille (GE1-S-RA1), sold separately
F1 - Screw M4×13 mm
Y1, Y2 - Cutting planes