Mandik FDMR User manual

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1. Description.........................................................................................................................
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2. Design................................................................................................................................
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3. Placement and Assembly....................................................................................................
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4. Dimensions.........................................................................................................................
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5. Electrical elements, wiring diagram.....................................................................................
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6. Material, surface protection.................................................................................................
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7. Product data.......................................................................................................................
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8. Logistic terms......................................................................................................................
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9. Warranty.............................................................................................................................
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10. Installation........................................................................................................................
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Fire dampers are closures in the ducts of air-conditioning units, which prevent the spread of fire
and combustion products from one fire section to another by closing the air ducts in the places of
installation according to EN 73 0872.
The damper leaf automatically closes the air passage by means of the closing the mechanism's
spring or the actuator's return spring.
The impulse to release the lowering lever can be manual (pressing the lowering button on the
mechanism) or thermal (pressing the thermal fuse).
The actuator return spring is activated when the ExPro-TT temperature sensor is activated
(pressing the reset button on the sensor or temperature activation) or the actuator power supply
is interrupted.
After closing the leaf, the damper is sealed against the passage of smoke with a silicone seal.
At the same time, the damper leaf is embedded in the mass, which increases its volume due to
the increasing temperature and closes the air duct airtight.
Damper fire resistance tests were performed according to the test standard EN 1366-2 and
harmonised product standards EN 15650. The classification was performed according to the
standard EN 13501-3+A1. Fire resistance depends on the installation method on the construction
site. The installation must be in accordance with the latest current version of the relevant TPMs.
The dampers are designed for environments protected against weather conditions with climatic
conditions in 3K5 class with temperature limitation -20°C to +50°C, without condensation, icing,
ice formation, without water and sources other than rain according to EN 60721-3-3 zmA2 and
environment with danger of explosion of group and category 2G Ex h IIC T6… T3 Gb according
to EN ISO 80079-36. If the damper is equipped with electrical elements, the temperature range is
narrowed according to the temperature range of the electrical elements used. The non-explosive
group of a damper with electrical elements depends on the non-explosive design of the installed
electrical elements on the damper. Electrical equipment installed together with the damper must
be of a design corresponding to the given zone. When determining spaces, the principle is that it
does not matter whether the specified environment is outside or inside the damper.
≥ 72°C 68°C T6
≥ 104°C 98°C T5
≥ 147°C 140°C T3
Fire dampers are designed for air without abrasive, chemical and sticky additives.
(mechanical control) with thermal fuse, which activates the closing
device within 120 seconds at the latest when the nominal starting temperature of 72°C is reached.
Up to a temperature of 70°C, the closing device will not self-start. If other start temperatures are
required, thermal fuses with a nominal start temperature of + 104°C or + 147°C can be supplied
(must be specified in the order).
according to paragraph 2.1. can be supplemented by signal-
ling the damper leaf position "CLOSED" or "OPEN" with a limit switch.

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with ExPro-TT thermoelectric activation device
(hereinafter only actuator).
After connection to supply 230V AC or 24V AC/DC the actuator moves the damper leaf to the
"OPEN" operating position and at the same time biases its return spring. As long as the actuator
is energised, the damper leaf is in the "OPEN" position and the return spring is preloaded. The
time for completely opening the damper leaf from the "CLOSED" position to the "OPEN" position
is approximately 30 sec. If the actuator's power supply is interrupted (loss of supply voltage,
activating the temperature sensor or by pressing the reset button on the temperature sensor), the
return spring moves the damper leaf to the emergency position "CLOSED. The time for moving
the leaf from the "OPEN" position to the "CLOSED" position is approximately 10 sec. If the supply
voltage is restored (the leaf can be in any position), the actuator starts moving the damper leaf
again to the "OPEN" position, but only if the temperature sensor has not been activated. The
sensor's temperature activation occurs when the temperature exceeds +72°C. Then the supply
voltage is permanently and irrevocably interrupted and the actuator moves the damper leaf to
emergency "CLOSED" position by means of a pre-loaded return spring.
a) by interrupting and re-applying the supply voltage, e.g. by a signal from the EFS.
b) directly on the built-in damper using the button on the temperature sensor (simulates fuse failure).
Using a special key (supplied with the actuator), the damper leaf can be manually adjusted to any
position and the position secured. Unlocking is done manually with a key or automatically by
applying the supply voltage.
manual and temperature (ZONE 1, 2) .02 II 2G
manual and temperature with limit switch ("CLOSED") (ZONE 1, 2) .12 II 2G
with actuator ExMax-15- BF AC 230V, with thermoelectric activation
ExPro-TT equipment (ZONE 1, 2) .42 II 2G
with actuator ExMax-15- BF AC/DC 24V, with thermoelectric activation
ExPro-TT equipment (ZONE 1, 2) .52 II 2G
Manual and thermal with two limit switches ("OPEN", "CLOSED") (ZONE 1, 2)
.81 II 2G
Fire dampers are suitable for installation in vertical and horizontal passages of fire dividing
structures. Penetrations regarding damper installation must be done in such a way that the
transfer of all loads from the fire dividing structures to the damper body is completely excluded.
The adjoining air duct must be suspended or supported in such a way that load transfer from the
adjoining duct to the damper flange is completely ruled out.
To ensure the necessary space for access to the control device, it is recommended that other
objects be at least 350 mm away from the control parts of the damper. At least one inspection
opening must be accessible.
The distance between the fire damper and the structure (wall, ceiling) must be at least 75 mm. If
two or more dampers are to be installed in one fire dividing structure, the distance between
adjacent dampers must be at least 200 mm.

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The damper must be installed so that the damper leaf (in a closed position) is placed on the edge
with the fire dividing structure or in the fire dividing structure - marked on the damper with the sticker
"EDGE OF THE WALL" (Fig. 1 and 2). If this solution is not possible, the duct between the fire
dividing structure and the damper must be min. to the edge of the wall protected (Fig. 3) as
specified in the standard EN 73 0872. The design must be in accordance with the relevant TPM for
the given type of damper.
Until the wall is plastered it is necessary to protect the control mechanism from damage and
contamination by covering it. The damper body must not be deformed during walling. After
installing the damper, the damper leaf must not scrub on the damper body when opening or closing.
Fire damper
Damper blade
Fire dividing
construction
Fire damper
Damper blade
Fire dividing
construction
Protected duct
Fire damper
Damper blade
Fire dividing
construction
The fire damper can be built into a rigid wall structure made of e.g. ordinary concrete/masonry,
aerated concrete with min. 100mm thickness or into a rigid ceiling structure made of e.g. ordinary
concrete, aerated concrete with min. 110mm thick. Construction openings and penetrations must
be made in accordance with the relevant TPM for the given type of damper.
The fire damper can be built into a light plasterboard wall construction with a min.100 mm thickness.
The fire damper can be installed outside the wall construction. The ducting and the part of the
damper between the wall structure and the damper leaf (marked with the WALL EDGE sticker on
the damper) must be protected by fire insulation. The insulation and penetration must be made in
accordance with the relevant TPM for the damper type.

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Position:
1 Body – 1 damper 8
Thermo-electrical fuse ExPro-TT
2 Body – 2 damper 9 Inspection hole covering
3 Damper blade 10 Control lever
4 Electrical actuator Schischek ExMax-15BF 11 Pin with lever
5 Mechanical actuator Atex 12 Initiation button
6 Thermal fuse 13 Insulation partition (promat)
7 End switch

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Position:
1 Body – 1 damper 8
Thermo-electrical fuse ExPro-TT
2 Body – 2 damper 9 Inspection hole covering
3 Damper blade 10 Control lever
4 Electrical actuator Schischek ExMax-15BF 11 Pin with lever
5 Mechanical actuator Atex 12 Initiation button
6 Thermal fuse 13 Insulation partition (promat)
7 End switch

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Position:
1 Damper casing 7
Thermo-electrical fuse ExPro-TT
2 Damper blade 8 Inspection hole covering
3 Electrical actuator Schischek ExMax-15BF 9 Control lever
4 Mechanical actuator Atex 10 Pin with lever
5 Thermal fuse 11 Initiation button
6 End switch

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Position:
1 Damper casing 7 Thermo-electrical fuse ExPro-TT
2 Damper blade 8 Inspection hole covering
3 Electrical actuator Schischek ExMax-15BF 9 Control lever
4 Mechanical actuator Atex 10 Pin with lever
5 Thermal fuse 11 Initiation button
6 End switch

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are manufactured in the size range (A x B): from 150 x 150 mm to 1500 x 800 mm.
: from a diameter of 100 mm to 1000 mm.
FDMB: from 160x160 to 1000x500, or 500x1000 (max. area 0.5 m2, max. side length 1000 mm)
FDMQ: from 150x150 to 1500x800
FDMR: from Ø100 to Ø800 mm
FDMA-PM: Ø900 and Ø1000
Square damper flanges with a width of 30 mm are provided with oval holes in the corners. The
connection dimensions of the round damper flanges are according to ON 120517.
In the case of dampers for SPIRO ducting, the circular dampers are supplied without flanges with
a fitted lip seal.

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AC 400V
6A
Ex d IIC T6 Gb, Ex tb IIIC T85°C Db IP66-67 II 2 GD
-20°C … +60°C
black blue
black-white brown green-yellow
Power voltage AC/DC 24/240 V, 50/60Hz
Power consumption - when opening the damper
max. in the rest position
max. 20 W
max. 12 W
Protection class I (grounded)
Degree of protection according to EN 60 529 IP 66
Non-explosive version II2 (1) G Ex d [ia] IIC T6,T5 zone 1 a 2
II2 (1) D Ex tD A21 [iaD] IP66 T80 °C zone 21 a 22
Adjustment time - drive
- reverse gear
~ 30 s
~ 10 s
Ambient operating temperature
Storage temperature
-40°C … +40°C at T6, -40°C … +50°C at T5
-40°C … +70°C
Humidity 0…95%rH non-condensing
Connection - optional accessory ExBox terminal block
For connecting power supply and auxiliary limit switches
PE
24 ... 240 VAC/DC
heating
Normal connection = return spring ~ 10 sec.
next connector for 5 = return spring ~ 3 sec.
button
PA
In the case of
disconnecting of
switch, heating
will be off.
Integrated switches
max. 24 V/3 A, 240 V/0,5 A
switching when 5° and 85°. Ex-i circuit for passive + non
potential button and safety thermal
switch ( , accessory)

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The damper bodies are usually supplied in galvanised sheet metal without further surface
treatment, alternatively with a special paint Alesta® AS AS3040-7403627 (RAL 7035-GL LIGHT
GREY) with a max. total thickness coating 120 ± 20μm, or the body can be completely made of
class AISI 304, possibly AISI 316L stainless-steel sheet. The damper leaves are made of
asbestos-free fire-resistant boards made of Promatect-H or Promatect-MST. The control damper
devices are supplied in a class AISI 304 or AISI 316L stainless-steel material without other
surface treatments. The main torsion spring in the mechanics is galvanised.
Thermal fuses are made of 0.5 mm thick brass sheet. The connecting material is galvanised, the
moving parts are made of class AISI 304 or AISI 316 stainless-steel.
All moving parts in the damper are conductively connected to the frame, the damper body.
• company logo - manufacturer • fire resistance • serial number
• company name and registered office • type and design • year of manufacture
• number of technical conditions /TPM/ • size and weight • certification
Furthermore, there is a sign of damper non-explosivity on the damper.
The dampers are delivered as bulk cargo. Any other packing methods must be agreed with the
manufacturer in advance. The potential packages will be considered non-returnable and their
price will not be included in the product price.
The dampers are transported by box freight vehicles; no sharp shocks must occur and the
ambient temperature must not exceed +40°C. For handling during transport, the dampers must
be protected against mechanical damages and weather impact. If the customer wishes it, the
dampers can be transported on pallets. During transport, the damper blade must be in the
"CLOSED" position.
Unless another method of reception is specified in the purchase order, the handover of the
dampers to the forwarder shall be understood as reception.
The dampers must be stored in covered buildings, in an environment without aggressive vapours,
gases and dust. A temperature in a range of -5°C and +40°C and a relative humidity of max. 80%
must be maintained in the buildings.
For handling during storage, the dampers must be protected against mechanical damage.
The scope of delivery includes a complete damper and a certificate of quality and completeness
with a stamp of inspection (the certificate is attached to the invoice).
The warranty for fire dampers provided by the manufacturer becomes completely null and void
after any unprofessional handling by untrained workers (see Article 10.1.), when dismantling
electrical components, i.e. limit switches, actuators and thermoelectric starting devices. The
warranty also becomes null and void if the dampers are used for purposes, equipment and
working conditions other than those permitted by these technical conditions or after mechanical
damage during handling.
If the dampers are damaged by transport, it is necessary to draft a report with the carrier upon
acceptance for the possibility of a later complaint.

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The dampers must be installed in compliance with all applicable safety standards and regulations.
Prior to commissioning the dampers and during subsequent serviceability checks, all versions,
including the operation of electrical components, must be inspected and functionally tested, and
the conductive connections of all moving and fixed parts (inside and outside the damper) must
be checked on the damper. After commissioning, these serviceability checks must be performed
at least twice annually. If no fault is found during two consecutive serviceability checks, then it is
possible to carry out serviceability checks once a year.
In the event that, for any reason, the dampers are found unfit to perform their function, this must
be clearly indicated. The operator is obliged to ensure that the damper is brought into a state
where it is able to perform its function again and during this time must provide fire protection in
another sufficient way.
The results of regular inspections, deficiencies found and all important facts concerning the
dampers function must be entered in the "FIRE BOOK" and reported to the operator immediately.
Flange and bolt connections must be conductively connected during installation in accordance
with EN 332000-4-41, -4-47 and -5-54 for protection against dangerous contact. For conductive
connections, 2 pieces of fan-shaped washers in galvanised design are used, which are placed
under the head of one bolt and under the screwed-on nut.
Installation, maintenance and serviceability checks of dampers may only be performed by
persons qualified for these activities, i.e. "AUTHORISED PERSONS" trained by the manufacturer.
The training is performed by MANDÍK, a.s. and issues a "CERTIFICATE" of professional compe-
tence, which is valid for 5 years and its extension is ensured by the "AUTHORISED PERSON"
themselves, directly with the trainer.
Upon the expiry of the validity of the "CERTIFICATE", it loses its validity and is excluded from the
trainer's registration.
Only professionals who take over the warranty for the work performed may be trained.
Prior to commissioning dampers after installation and during subsequent serviceability checks,
the following checks must be carried out:
of a damper's correct installation, the damper's internal space, the damper
leaf, the bearing surfaces of the leaf and the silicone seal.
loosen the cover by turning the wing nut and release
it from the locking bracket by moving the cover left or right. Then tilting and removing the cover
from its original position. In the case of a screw cap, loosen and remove the screws with washers
and remove the cap cover.
• Checking the thermal fuse of the drive - the drive must be removed.
• Checking damper closing - pressing the release button on the mechanism will release the
closing mechanism and move the sheet to the "CLOSED" position. The closing must be
vigorous, the leaf must be in the "CLOSED" position on the stops. If the damper closure is not
strong enough or the leaf is not in the "CLOSED" position, the mechanism must be replaced.
• The damper leaf is moved to the "OPEN" position by the mechanism's lever to the second
extreme position, where it must be locked.
• Inspection of the leaf movement to the emergency position "CLOSED" is performed after the
power supply to the servo-drive is interrupted (e.g. by pressing the reset button on the
thermoelectric starting device, by interrupting the power supply from the EFS).
• The check for moving the leaf back to the "OPEN" position is performed after the supply voltage
has been restored (e.g. by releasing the reset button, restoring the power supply from the EFS).
For reliable operation of dampers, care must be taken to ensure that the closing mechanism and
the bearing surfaces of the leaf are not clogged with dust deposits, fibrous or sticky substances
and solvents.

The producer reserves the right for innovations of the product. For actual product information see
www.mandik.com
MANDÍK, a.s.
Dobříšská 550
26724 Hostomice
Czech Republic
Tel.: [phone]
E-Mail: [email protected]
www.mandik.com