General Information; Description - Mandik FDMC General Information Manual

TPM 083/12
II. GENERAL INFORMATION

1. Description

1.1. Fire dampers are shutters in duct systems of air-conditioning devices that prevent spreading the
fire and combustion products from one fire segment to the other one by means of closing the air
duct in the points of fire separating constructions.
Dampers blade automatically closes air duct using a shutting spring or an actuating mechanism
back spring. The back spring of the actuating mechanism is started when the thermoelectrical
starting mechanism BAE 72B-S is activated, when a reset button on BAE 72B-S is pushed or
when a power supply of the actuating mechanism is stopped.
The damper is sealed with a silicon packing against smoke penetration after closing the blade. At
the same time, the damper blade is bedded in a material which enlarges its capacity and air
proofs the air duct.
Dampers have one inspection hole, since the shutting device and the inspection hole can be set
into the most advantageous position (with respect to the operation and manipulation with the
control device).
Fig. 1 Fire damper FDMC
Damper characteristics
1.2.
• CE certified acc. to EN 15650
• Tested in accordance with EN 1366-2
• Classified acc. to EN 13501-3+A1
• Fire resistance EIS 60
• External Casing leakage class min. C, Internal leakage class 3 (D=200 - 400 mm) and class 2
(D=180 mm) and class 1 (D=100 - 160 mm) acc. to EN 1751
• Cycling test in class C 10000 acc. to EN 15650
• Corrosion resistant acc. to EN 15650
• ES Certificate of conformity No. 1391-CPR-0090/2014
• Declaration of Perfomance No. CDM/FDMC/001/14
• Hygienic assessment of fire dampers - Report No. 1.6/13/16/1
1.3. Working conditions
Exact damper function is provided under the following conditions:
a) Maximum air circulation speed: 12 m.s
Maximum pressure difference: 1500 Pa
b) Dampers could be displaced into position "CLOSED" only in case that ventilator, or Air
Handling Unit is switched off. The goal is the securing of proper closing and safe
function of Fire Damper in case of Fire.
c) The air circulation in the whole damper section must be secured as steady on whole
surface.
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