4/1.1/B/2
Shutter Fire Damper
Type FSD • FSP • FSE
Contents • Description
Description .................................................................... 2
Construction Dimensions Materials .............................. 3
Installation Details ......................................................... 5
Product Range Accessories .......................................... 7
Technical Data .............................................................. 9
Order Details ................................................................ 10
Fire dampers provide an automatic means of localising areas of
fire in ventilation systems.
The FSD range of curtain bladed fire dampers are suitable for
installation in walls and ceilings made from concrete or
brickwork, and will stop the spread of fire through duct, walls or
floors.
There is a wide choice of sizes available suitable for low,
medium and high velocity applications and include rectangular,
square, circular and flat oval connections.
The dampers are fitted with standard release 72°C fusible links
unless otherwise specified.
Note: The installer should note that all fire damper installations
plus required access panels have to be to the
satisfaction of the District Surveyor or the appropriate
Fire Protection Authority.
2
Construction • Dimensions • Materials
Type FSD
Type FSP
Type FSD shutter fire dampers are constructed with a 1.2mm
case and 0.8mm blades in galvanised mild steel to BS EN 10142
1991 FE PO 2GZ275 NA or equivalent.
The construction is similar to type FSD, except that the blades are
manufactured from stainless steel grade 430.
Various construction options are available, these are given in the
table on page 7, standard supply unless otherwise stated is the
FSD-A with a fusible link which has a fusing temperature of 72°C.
Of similar construction to type FSP, except that the case and
catchplates are manufactured from stainless steel grade 304L.
Type FSE
When fitted the twin catchplates are of galvanised mild steel
(specification as case and blades).
When fitted the side seals are convex in shape to close the gaps
between blades and case. The material is spring stainless steel
grade 302.
The closing springs (constant force) are also stainless steel.
The bottom blade of FSD...P...E - A...B...D...E are fitted with a
ring pull device to allow blades to be reset.
Type FSD...P...E
Construction Variants: A, B and C have blade packs partially in
the airstream
Duct size
Rectangular / Square Connection
Type FSD...P...E – A...C
Type FSD...P...E – A
Overall Width
B + 45mm
38
80
38
6
4
Y
Overall Height
H + 45mm
5
H – 3mm
= (o/a spigot)
5
2
1
Type FSD...P...E – B
Type FSD...P...E – C
5
x
Y
5
6
6
2
1
1
Galvanised or stainless
steel catchplates
4
2
Closing springs
5
3
Side seals
Galvanised or
stainless steel frame
B or H
Y
150
10
200
10
250
10
300
20
350
20
400
30
450
30
500
30
550
30
600
40
650
40
700
50
750
50
800
60
850
60
900
60
950
70
1000
70
6
B – 3mm
= (o/a spigot)
3
Dim
6
Fusible link
Note:
All types shown can
have prefix FSD,FSP,
FSE
'Y'is dimension of blade
protrusion into airstream
Galvanised or
stainless steel blade
assembly
3
Construction • Dimensions • Materials
Type FSD...P...E
Construction variants: DR, DC, DO and ER, EC, EO
have blade packs out of airstream
Rectangular / Square Connection
Type FSD...P...E – DR and ER
Type FSD...P...E – DR
Overall width
B + 45mm
80
38
X
38
Type FSD...P...E – ER
5
5
H – 3mm
= (o/a spigot)
5
2
6
3
24
6
2
1
1
B – 3mm
= (o/a spigot)
Circular Duct Connection
Type FSD...P...E – DC and EC
Type FSD...P...E – DC
Type FSD...P...E – EC
Note: When ordering circular duct dampers
see note on page 10
Overall width
D + 76mm
5
X
6
5
6
D – 3mm
= (o/a spigot)
5
40
6
50
1
Circular Duct Connection
Type FSD...P...E – DC and EC
3
2
Type FSD...P...E – DO
1
2
Type FSD...P...E – EO
Note: When ordering circular duct dampers
see note on page 10
Overall width
D+76mm
235
5
5
6
5
6
D – 3mm
= (o/a spigot)
X
80
6
40
4
B – 3mm
= (o/a spigot)
50
1
Galvanised or stainless
steel catchplates
4
Galvanised or
stainless steel frame
2
Closing springs
5
3
Side seals
Galvanised or
stainless steel blade
assembly
1
Dim
BXH
BXD
D
X
235
80
4
Duct size
3
2
6
Fusible link
4
1
2
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
49
74
99
Note:
All types shown can
have prefix
FSD, FSP, FSE
‘X’ is dimension of
variable top case
section
InstalIation Details
HEVAC Installation Frame Type H
Where more than one duct penetrates a fire wall or floor,
adjacent fire dampers and frame assemblies must be separated
by builder's work of a minimum thickness of 225mm.
All FSD, FSP and FSE types can be fitted in the HEVAC
installation frame.
Note in all cases HEVAC frame is manufactured from
galvanised mild steel.
The HEVAC Installation Frame Type H is built to specification
HVC 615183. Various fire damper designs can be used with this
installation frame, see below.
The installation frame is factory assembled with its respective
fire shutter damper and delivered to site as one unit. This unit
should be installed centrally within the thickness of the
surrounding wall or floor such that the centre line of the frame is
a minimum distance of 50mm from the nearest face of the wall
or floor.
1
10mm clearance between frame and fire damper to allow for
expansion.
On installation all fixing tabs except those which are completely
inaccessible shall be bent into the mortar joints between the
brickwork or blockwork surrounding wall or floor. Then with
cement mortar fill all joints solidly.
In reinforced concrete the tabs should be bent out and tied
with wire to the reinforced bars. The gap between the frame
should then be backfilled with concrete or mortar both sides of
the frame.
2
Galvanised steel spacer to permit expansion.
3
Galvanised steel building ties.
4
Aluminium rivets fix the corner angles to the frame
5
Galvanised steel frame the corners left open.
6
Steel corner angles retain frame open corner.
7
15mm clearance between mitre corner.
HEVAC Installation Frame Type H
Rectangular / Square Connection
Type FSD...E...P – A...– C
Rectangular / Square Connection
TYPE FSD...E...P – DR and ER
B + 105mm
H + 130mm when X = 49mm
H + 155mm when X = 74mm
H + 180mm when X = 99mm
H-3
(o/a spigot)
H + 105mm
B + 105mm
B-3
(o/a spigot)
1
Oval / Circular Connection
Type FSD...E...P- DC, DO and EC, EO
3
4
D + 146mm when X = 49mm
D + 171mm when X = 74mm
D + 196mm when X = 99mm
B + 136mm
2
6
5
7
Note: Two dampers can be supplied assembled in a single HEVAC frame up to
size B x H 1524 x 1000mm. Receipt of an order for this configuration will be taken
by Trox as the client having obtained this approval from the appropriate authority.
5
InstalIation Details
Installation with Sleeve and Peripheral Angles:
6mm diameter bolts at a maximum of 225mm centres, and
should form a complete frame around the sleeve and cover over
the expansion gap (see table) required between sleeve and wall
or floor opening. The expansion gap should be filled with
compressible, non combustible material (mineral wool). The
cover angles should be of such a size as always to form a cover
over the wall or floor opening by 25mm minimum, and should
be manufactured from a minimum size of 38 x 38 x 3mm steel
angle.
All fixings must be positioned clear of the damper blade path so
as not to impede proper closure.
Warning Dampers supplied without installation frames as
shown on page 5 or not being fitted into installation sleeves,
must not be installed within a solid masonary structure as the
outer case has no facility to cater for expansion during fire
conditions.
Note: Supply and fixing of sleeve and peripheral angles by
others.
As an alternative for use where the HEVAC frame is not
desired, cannot be fitted, or for multi section arrangements,
peripheral sleeves and angle frames can be constructed in
accordance with the following:
The damper should be installed centrally within the surrounding
wall or floor thickness such that the centre line of the frame is a
minimum distance of 50mm from the nearest face of the wall
or floor.
The damper should be installed in a rectangular galvanised
steel sleeve with a minimum thickness of 1.2mm.
The fixing of the damper can be by tack welding the case on
both sides directly to the sleeve, or by the use of 20 x 20 x
1.2mm steel angles which should be tack welded to the sleeve.
In both cases welds to be at a maximum of 225mm pitch.
The sleeve should be of a suitable length to extend through the
wall or floor opening to enable the fitting of the cover angles and
ductwork. The cover angles should be attached to the sleeve by
Installation
Expansion Gap
Type FSD...P...E – A...– E
Allowance for expansion between sleeve
and builder's work in both horizontal and
vertical planes.
1
Sleeve
2
Fixing Angles
(optional)
3
Cover Angles
BxH
Total
Clearance
Clearance
per side
0-500
6mm
3mm
500-1000
13mm
6mm
2
1
3
Multiple Sections
Type FSD...P...E – A...– E
(not Type FSD...P...E – C)
Type FSD...P...E – A...– E
Installation Requirements
Multiple Assembly
Horizontal Damper
Multiple Assembly
Vertical Damper
The installer should note that the installation
and location of access panels is to be to the
satisfaction of the District Surveyor or Building
Inspector or the appropriate Fire Protection
Authority.
1
1
1
Type U Channel Frame
Supplied in lengths
for site assembly.
6
When duct size B or H is greater than
1000mm, multiple dampers sections will be
required. With all multi section installations
the proposed arrangements must be to the
satisfaction of the appropriate local authority
and/or fire officer responsible for the
installation. Receipt of an order requesting
multiple sections will be taken by Trox as the
client having obtained this approval from the
appropriate authority.
Product Range • Accessories
Construction Variants
Construction
Variant
Descri tion
Mounting Mode
Velocity Range
A
Blades partially in airstream, square or rectangular spigot,
fitted with closing springs and catchplates.
Vertical/horizontal mounting
Low
Medium
B
As code A but includes side seals.
Vertical/horizontal mounting
Low
Medium
C
As code A but excludes closing springs
and catchplates.
Vertical mounting only
Low
Medium
DR
DC
DO
Variable height top case section to contain blades out of
airstream. Fitted with closing springs and catchplates.
Can be supplied with square or rectangular, circular or
oval duct connections.
Vertical/horizontal mounting
High
ER
EC
EO
As code D series but includes side seals.
Vertical/horizontal mounting
High
Functional Description
– Fusible link release (basic unit)
– ETL Release:
Automatic closure of the fire damper at an air
temperature of t > 72°C, in the area of the fusible link;
for smouldering fires where t < 72°C, the system does
not release.
A dual response fusible link release providing
automatic closure of the fire damper;
a) at an air temperature t > 74°C in the area of the
Iink.
– Magnetic release:
(AC or DC solenoid or DC electro magnet)
Thermal closure of fire damper at t > 72°C, or
electrically when the current is interrupted (power off to
close) DC electro magnet, or pulsed (power on to
close) AC or DC solenoid. Signal from central control
or via a smoke detector built into ventilation system
e.g. Trox Smoke Detector Type RM-O or RM-1/2.
b) When subject to a short duration low power
electrical impluse which triggers a chemical heating
of the centre element causing the link to release in
approximately 7 seconds. This signal could be
provided for example by a smoke detector, e.g.
Trox Type RM-O or RM-1/2.
Accessories
Description
Code
Description
Code
–
Fitted to all FSD...P...E variants.
Except type FSD...P...E – C
Ring pull permits the release of
the blades from the catchplates
when access is from the opposite
side to the catchplates.
Description
Z01
Electrical limit switch assembly
to indicate blade closure.
Z02
Mechanical device to indicate
blade closure visable externally
from the damper.
Sub-frames
Code
Description
H
Additional HEVAC sub-frame for wall mounting.
HEVAC model sub-frame sub-frame supplied assembled to the
fire damper.
U
U channel joining sub-frame for multiple assemblies.
Supplied loose for site assembly by others.
7
Code
Accessories
Construction or construction variant
Combined with
Base holder with fuse link (standard
construction)
Code
–
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicators indicates blades ‘CLOSED’
Z01
Z02
Z03
Double changeover contact
Circuit breaking capacity max 380V ~, 50Hz, 10A, min 24V–, 100mA
Contact resistance 60mΩ. Protective system IP 66
Base holder with ETL fuse link which
is a dual response device with fusible
link which reacts (melts) when
subjected to either local heat or an
electrical impluse of low power and
short duration. The standard
temperature rating is 74ºC. It can be
released with an electrical impluse
(between 6 volt and 30 volt AC or DC
minimum current of 0.2 amperes).
Universal release holder with fuse
link. Each side of release device has
a spring loaded lever allowing the
damper to be easily tested for closure
and re-loaded with one hand from
either side. Standard fusing
temperature 72°C.
Z04
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicator indicates blades ‘CLOSED’
Z05
Z06
Z07
Double changeover contact
Circuit breaking capacity max 380V ~, 5OHz, 10A, min 24V–, 100mA
Contact resistance 60mΩ. Protective system IP 66
Z08
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicator indicates blades ‘CLOSED’
zog
Z10
Z11
Double changeover contact
Circuit breaking capacity max 380V ~, 50Hz, 10A, min 24V–, 100mA
Contact resistance 60mΩ. Protective system IP 66
Universal link fitted with an AC
electric solenoid 230/240V AC.
Provides remote operation from an
AC electrical signal. Power ON closes
the damper. It incorporates a fusible
link within the universal release to
also provide normal closure in the
event of increasing temperature
AC Solenoid U = 230/240V 50Hz
PΩ 55VA inrush 20VA closed
100% rated.
Universal link fitted with a DC electric
solenoid 24V DC. Provides remote
operation from a DC electrical signal.
Power ON closes the damper. It
incorporates a fusible link within the
universal release to also provide
normal closure in the event of
increasing temperature.
DC Solenoid 24V DC 1 2W
100% rated
Universal link fitted with an electro
magnet 24V DC. Provides remote
operation from an DC electrical
signal. Power OFF closes the
damper.lt incorporates a fusible link
within the universal release to also
provide normal closure in the event of
increasing temperature.
DC Electro Magnet 24V DC 4W
100% rated.
Z12
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicator indicates blades ‘CLOSED’
Z13
Z14
Z15
Double changeover contact
Circuit breaking capacity max 380V ~, 50Hz, 10A, min 24V–, 100mA
Contact resistance 60mΩ. Protective system IP 66
Z16
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicator indicates blades ‘CLOSED’
Z17
Z18
Z19
Double changeover contact
Circuit breaking capacity max 380V ~, 50Hz, 10A, min 24V –, 100mA
Contact resistance 60mΩ. Protective system IP 66
Z20
Limit switch indicates blades ‘CLOSED’
Visual indicator indicates blades ‘CLOSED’
Limit switch with visual indicator indicates blades ‘CLOSED’
Double changeover contact
Circuit breaking capacity max 380V ~, 50Hz, 10A, min 24V–, 100mA
Contact resistance 60mΩ. Protective system IP 66
8
Z21
Z22
Z23
Technical Data
Fire Test BS 476 Part 201987
The fire dampers shown have been tested by an independent
authority (Warrington Research Centre) according to British
Standards 476 Part 20; 1987 for a period of 4 hours.
The time / temperature curve required by this test procedure is
shown below, after 4 hours test the FSD retained its integrity
with no significant openings being formed.
Pressure losses are shown below for units with blades either
partially in or out of the airstream.
Type FSD...P...E – A..– C
Fire Test BS 476 Part 20: 1987
Blades partially in airstreann
100
80
1200
60
50
40
1100
20
1000
10
8
6
5
4
900
3
800
2
Temperature rise (T-To) ºC
Static pressure drop Pascals (Pa)
30
1
1
1.5
2
3
4
5
Duct velocity m/s
6
8
10 12.5
Type FSD...P...E – D and E
Blades out of airstream
150
700
600
500
400
Static pressure drop Pascals (Pa)
100
80
300
60
50
200
40
30
100
25
20
0
15
30
60
90
120
150
Time (T) min
10
6
8
10
15
Duct velocity m/s
20
30
9
180
210
240
Order Details
Specification Text
Options:
Square or rectangular shutter type fire dampers for the isolation
of fire zones in air conditioning systems. Designed to maintain
integrity and stability for 4 hours when tested to BS 476 Part 20;
1987. Tests carried out at Warrington Research Centre,
England. The FSD fire dampers consist of perimeter frame case
and interlocking shutter type blades. As standard the case is
complete with catchplates and constant tension closure springs.
Suitable for either rectangular, circular or flat oval ducting and
available in high or low pressure/velocity construction. Standard
release 72°C fusible link.
Universal release mechanism with fusible link or fusible link in
conjunction with solenoid or electro magnet release.
Fusible links available at other fusing temperatures.
Stainless steel blades, or all stainless steel construction
(blades grade 430 case grade 304L).
For reduced leakage addition of stainless steel side seals
(grade 302).
For vertical installation only (horizontal duct work) damper
without closure springs, catchplates or side seals.
Materials:
Case, blades and catchplates galvanised mild steel to BS EN
101421991 FE PO 2GZ275 NA. Constant force stainless steel
closing springs. Brass soldered fusible link.
Order Code
This code must be used when
H Dim exceeds 1000mm
FSD – A – V
Type
FSP
FSE
(See page 3)
Construction Variants
(See page 7)
1*
0
Z01
Mounting
Mounting V = Vertical damper
Mounting H = Horizontal damper
A tb C blades partiaiiy
in airstream
DR Rectangular Spigot
DC Circular Spigot
DO Oval Spigot
ER Rectangular Spigot
EC Circular Spigot
EO Oval Spigot
1000 x 500
Duct Size
Dimensions square or
rectangular ‘B’ x ‘H’mm,
circular ‘D’mm dia.
Flat oval ‘B’ x ‘D’mm.
All damper with spigots
are manufactured down
on duct size to fit
inside duct work
connections.
FSD Standard Supply
1* A
B
C
These codes do not need to be
completed for standard products
blades out
of alrstream
Order Example
Make : TROX
Type : FSD – A / 1000 x 500 / 0 / Z01.
Qty : 4
Note: FSD - A is standard supply unless:
otherwise specified.
10
Accessories
(See page 7 & 8)
Other Options
0 = Standard supply.
H = Hevac sub frame.
U = U joiningframe.