Brofer BTT 30 EURO Series Guide

BTT 30 EURO
MANUALE DI INSTALLAZIONE E D’USO
INSTALLATION AND USE MANUAL
A I R E N G I N E E R I N G
PROTEZIONE INCENDIO
FIRE PROTECTION

9
CONTENTS
SPECIFICATIONS / GENERAL DESCRIPTION pag 9
REGULATORY FRAMEWORK 10
HANDLING AND INSTALLATION WARNINGS 10
MAINTENANCE 10
INSTALLATION IN BRICK WALLS 11
INSTALLATION IN CONCRETE FLOORS 11
INSTALLATION IN LIGHTWEIGHT WALLS 12
CONTROL FUNCTIONS 13
REPLACING THE MECHANICAL FUSE 14
MANUAL COMMAND FUNCTIONS, DATA AND ELECTRICAL WIRING LAYOUT 15
MOTORISED COMMAND FUNCTIONS, DATA AND ELECTRICAL WIRING LAYOUT 15
SPECIFICATIONS / GENERAL DESCRIPTION
Fire damper (horizontal or vertical) for wall or ceiling installation, comprising a duct and galvanized steel components,
30 mm thick shutter from a single sheet of calcium silicate, and suitable gaskets to ensure efficient sealing against
cold and hot fume leaks.
The control unit (manual, motorized or thermally-actuated) is made up of a removable plate that can be replaced
even once the dampers have been installed. This plate accommodates all parts needed for trouble-free operation and
activation of the fire damper. The geometry of the control mechanism, is designed to prevent the pressure in the duct
(up to 500 Pa) from opening the shutter, which can be opened by activating the lever.
The control unit of a properly installed damper must be on the wall plane in order to simplify any
later interventions.
Fire dampers must be installed in accordance with this manual for use with HVAC equipment, providing a compart-
ment wall between two rooms, and ensuring effective heat insulation and protection against fumes and smoke.
Installers are to satisfy the reference installation procedures and strictly use the materials described in this
manual in order to comply with the same testing conditions as for the test specimens.
Any discrepancy from the instructions given, will entail loss of validity of the product certification and statement
of compliant installation.
EUROPEAN FIRE DAMPERS
CERTIFIED TO EN 1366-2 STANDARDS
BTT 30 EURO SERIES
0497/CPD/4728/12
0497
ITENG

10
RESISTANCE RATING
SUPPORTING ELEMENT EI 180 S - 500 Pa EI 120 S - 500 Pa EI 90 S - 500 Pa
NORMALISED BRICK WALLS MIN. WIDTH 150
(Vei Qo) da Ø 200 a Ø 800
SE
da Ø 200 a Ø 800
MA / SE
da Ø 200 a Ø 800
MA / SE
LIGHT WALL MIN. WIDTH 100
(Vei Qo) da Ø 200 a Ø 630
MA / SE
da Ø 200 a Ø 630
MA / SE
HORIZONTAL FLOOR MIN. WIDTH 150
(hOi Qo) da Ø 200 a Ø 800
MA
da Ø 200 a Ø 800
MA / SE
da Ø 200 a Ø 800
MA / SE
IT ENG
REGULATORY FRAMEWORK
Fire Damper certified to EN 1366-2 Standards (M.D. 16/02/2007)
and rated according to UNI EN 13501-3 Standard requirements.
Key
E = integrity I = thermal insulation S = fume seal
Ve= vertical installation ho= horizontal installation iQo = side exposed to fire indifferent
HANDLING AND INSTALLATION WARNINGS
Warning!
• All handling and installation operations must be conducted with the fire damper shutter in a closed position (as per
our standard supply)
• All connections to the mains must be done by professionally qualified personnel
• Clean and remove all cement residues from the connection flanges to ensure secure connections to the rest of the
duct
• Avoid all deformation of the duct and/or obstacles inside the duct that could prevent correct rotation of the shutter
• Check there are no external objects (cables, pipes, etc.) which could prevent the correct operations of the commands
outside the duct itself
• Keep as much access clearance as possible on the control unit side so as to ensure the user and maintenance opera-
tors have sufficient space to work on the damper
MAINTENANCE
No special maintenance is required. It is however recommended to check that all shutter operating and warning de-
vices are working properly on a regular basis.
More specifically, check for complete and correct opening and closing of the shutter blade: for information on how to
enable the commands, please refer to the “COMMAND FUNCTION” paragraph on page 5 of this manual.
Also check that the limit switch warning devices for start and end strokes (where applicable) are in good working
condition.
DIMENSIONAL

11
ITENG
INSTALLATION IN BRICK WALLS
• 1 - Before starting to install
your fire damper, check its
conditions, the position of the
shutter when closed and the
trouble-free operation of the
control unit
• 2 - Provide a recess in the
wall making sure that it is 55
mm greater than the nominal
damper diameter (fig. 1)
• 3 - Fit the damper inside the recess, well centred on its horizontal axis and make sure that the plane of the closed
blade is parallel to the wall plane. Maintain the rotation axis of the horizontal blade as during the trials done (instal-
lation with vertical blade is not allowed). Match the projections shown in fig. 2 - table 1
• 4 - Fill the gap between the wall and the damper with fire-proof mortar (class M10 or higher) to retrieve resistance
and insulation (Fig. 3)
After complete installation, perform a functional test checking for proper blade rotation and control efficacy (both
manual and motorized).
To perform a functional test of the manual version, reset the damper using its lever and press the test button to
simulate normal operation.
To test a motorized version, activate the small lever of the thermal fuse.
TABLE 1
P (mm) S1 (mm) S2 (mm)
150 227,5 92,5
>150 227,5 = 470 - (P+S1)
INSTALLATION IN CONCRETE FLOORS
• 1 - Before starting to install your fire
damper, check its conditions, the posi-
tion of the shutter when closed and the
trouble-free operation of the control unit
• 2 - Provide a recess in the ceiling making
sure that it is 100 mm greater than the
nominal damper diameter (Fig. 1)
• 3 - Fix the steel brackets delivered with
the damper to the damper flange (place
them with control side above ceiling only)
as shown on Fig.2
• 4 - the damper inside the recess with the control side facing above the ceiling so that it protrudes from its plane
• by 227.5 mm. Install the steel brackets against the stop on the upper ceiling face to ensure right installation (Fig.3)
• 5 - The steel brackets are designed for possible installation on the ceiling (Fig.4)
• 6 - Fill the gap between the wall and the damper with fire-proof mortar (Class M10 or higher) to retrieve resistance
and insulation (Fig. 5)
PLEASE NOTE: if the damper is installed with its control side underneath the ceiling, make sure to allow a projec-
tion of 227.5 mm from the ceiling lower plane.
After complete installation, perform a functional test checking for proper blade rotation and control efficacy (both
manual and motorized). To perform a functional test of a manual version, rest the damper using its lever and push
the test button to simulate normal operation. To test a motorized version, activate the small lever of the thermal fuse.

12 IT ENG
INSTALLATION IN LIGHTWEIGHT WALLS
• 1 - Before commencing in-
stallation, check the condi-
tion of the damper, the cor-
rect position of the shutter,
in a closed position, and
that the command works
properly. The plasterboard
panels to be used are of type
F according to EN 520 and
DIN 18180 and have unit
thickness of 12,5 mm.
• 2 - Make a hole in the metal structure wall which is 60 mm large in H and L than the nominal diameter of the damper.
The metal structure must comply with the measurements indicated in the diagram.
• Fill in the spaces inside the metal structure using mineral wool which 40 mm thick and has a minimum density of
100 kg/m³ (fig.1)
• 3 - Cover both sides of the metal structure with two layers of plasterboard, each 12.5 mm thick, leaving enough
space to install the fire damper unit. The wall will hence have a total thickness of 100 mm (fig.2)
• 4 - Fasten the 4 accessory metal brackets to the flange of the damper. Use the screws and the threaded nuts sup-
plied with the brackets to fix them in place (fig.3)
• 5 - Position the damper inside the hole centring it horizontally, making sure the shutter axis corresponds to the wall
axis.
• Maintain the axis of rotation of the blade horizontal as from tests carried out (is not allowed to be installed with
vertical axis). Check that the damper protrudes from the wall by the correct measurement, bringing the previously
installed metal brackets up against the wall (fig.4)
• 6 - Fill in the space between the wall and the damper using mineral wool which 40 mm thick and has a minimum
density of 100 gk/m³ and using gypsum based adhesive to fill in any remaining hole (fig.5)
• 7 - Reinforce the wall with a layer of plasterboard panels on each side (thickness 12,5 mm) forming a frame having
a side greater than 300 mm the nominal diameter of the damper (fig.6)
On completing installation, it is recommended to run a test to check the blade rotates correctly and the commands
work properly (in both manual and motorised mode).
It can be conducted in manual mode by using the lever to reset the damper and pressing the test button to simulate
operating functions.
In motorised mode, use the thermoelectric fuse lever.

13
ITENG
CONTROL FUNCTIONS
Manual Mode
Reset:
• Remove the reset lever from the housing compartment (fig.1)
• Insert the reset lever inside the control pin as far as possible, turning the lever clockwise by 90 degrees, making sure
that the control pin is blocked in the open position (fig.2)
• Now remove the lever from the control pin and replace it in its housing compartmente
Manual closing:
• Press the button highlighted in fig.3
Manual command with electromagnetic circuit breaker
Reset:
• Power up the electromagnet (elec-
trical wiring diagram on page 8)
• Raise the metal lever on the con-
trol unit casing (fig.1)
• Remove the reset lever from the
housing compartment (fig.2)
• Insert the reset lever inside the
control pin as far as possible,
turning the lever clockwise by 90
degrees, making sure that the
control pin is blocked in the open
position (fig.3)
• Now remove the lever from the
control pin and replace it in its
housing compartment
Manual closing:
• Press the button highlighted in fig.4
Electromagnetic closing:
• Disconnect the power to the electromagnet
Manual command with input electromagnet
Reset:
• Raise the metal lever on the control unit casing (fig.1)
• Remove the reset lever from the housing compartment (fig.2)
• Insert the reset lever inside the control pin as far as possible, turning the lever clockwise by 90 degrees, making sure
that the control pin is blocked in the open position (fig.3)
• Now remove the lever from the control pin and replace it in its housing compartment
Manual closing:
• Press the button highlighted in fig.4
Electromagnetic closing:
• Power up the electromagnet

14 IT ENG
Servomotor mode
Reset:
• Insert the key supplied with the delivery into the housing on the servomotor and turn it clockwise to a 90 degree
position
• Quickly rotate it counter clockwise to block the servomotor in the open position
• Manual closing:
• Insert the key supplied with the delivery into the housing on the servomotor and turn it counter clockwise by half a
turn to enable the spring return that will automatically move the servomotor into the closed position and the relative
indicator in a 0 degree position
Motorised closinga:
• Move the thermoelectric fuse lever located to the side of the servomotor or disconnect the power supply
REPLACING THE MECHANICAL FUSE
Warning !
All connection and maintenance operations must be carried out with the damper closed and the power supply discon-
nected.
• Check that the indicator on the control unit is set to CLOSE. If this is not the case, press the test button to close the
damper manually
• Remove the plastic cover by loosening the central fastener screw (fig.2)
• Unscrew the 3 cross-head screws and remove the release mechanism from the plate (fig.3)
• Replace the fuse by squeezing the spring and hooking it onto the two protruding pins (fig.4)

15
ITENG
Magnetic command
Where necessary, an electromagnet can be installed on the damper so as to anticipate the clos-
ing of the damper before the thermo fuse is triggered. Depending on the type of electromagnet
(current input or breaker), it will send or cut off the electric power signal and the damper will
close to prevent the diffusion of cold fumes.
If a fire breaks out, when the temperature rises the thermo fuse will override the action of the
electromagnet.
Magnet technical specs
- Retaining force: 120N
- Protection rating (EN 60529 Standard): IP40
- Absorbed current at 20°C: 1.6W (none) - 3.5W (emission)
- Operating temperature: from -30 to +85
MOTORISED COMMAND FUNCTIONS, DATA AND ELECTRICAL WIRING LAYOUT
The motor is powered by connecting it to the mains (contacts 1 and 2) which
moves the damper shutter to the open position, whilst simultaneously loading
the spring which retains all the power needed to close the duct in case of and
alarm or black-out.
The connections of the two limit switches inside the motor can be used to ren-
der the rest of the system more flexible; for instance, by connecting contacts
S1 and S2, it will be possible to trigger the shutdown of the fan unit should
the damper shutter close, whilst contacts S4 and S6 can be used to trigger
an alarm pilot light.
The thermoelectric device consists of three fuses: these make the fire damper
shutters sensitive to the temperature inside the duct (with Tf 2 and Tf 3 fuses
which can be replaced) and to ambient temperatures (using the Tf 1 fuse).
When the device is triggered, it locks down the power supply irreversibly, until
the fuses are replaced, which allows the servomotor to move the shutter into
the closed position using the force of the spring.
It also has a button that can be pressed manually to simulate a triggered fuse
and allow testing and inspection of the shutter.
Its position outside the damper and self-threading screw fasteners allows for
safe control over ambient temperatures and easy maintenance.
• Allacciamento 24V:
da trasformatore
• Allacciamento 230V:
per l’interruzione della rete prevedere
un dispositivo di sezionamento di
tutte le fasi (apertura dei contatti
min. 3mm)
MANUAL COMMAND FUNCTIONS, DATA AND ELECTRICAL WIRING LAYOUT
Start and end stroke microswitches
The devices that signal the start stroke and end stroke are two independent NC+NO
dual contact switches.
The first normally closed (NC) on contacts 21 and 22, whilst the second normally
open (NO) on contacts 13 and 14.
When the switch is triggered, the contact status is inverted, the NC contact opens
and the NO contact closes.
E.g.: the relay that controls the fan power supply is connected to contacts 21 and 22
(NC), whilst a luminous alarm indicator is connected to contacts 13 and 14 (NO). In
this case, when the damper shuts, the fan will switch off and the alarm indicator
pilot light will come on.
Switch technical data
-Casing: Fibre glass reinforced thermoplastic
-Protection rating (EN 60526 Standard): IP65
-Cable cross-section diameter: rigid 2.5mm² - flexible with ferrule 1.5 mm²
Operating temperature: from -25 to +70

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