Trox Technik EK-EU, Инструкция по установке и эксплуатации

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4 Parts and function
Smoke control dampers are used in mechanical smoke
extract systems. They are used for extracting smoke
gases and for providing additional supply air to one or
more fire compartments.
Smoke control dampers are made from calcium silicate
boards, and the electric actuator and the optional con-
trol module are encased so that the functional reliability
is ensured even in the event of a fire.
Regular maintenance of the smoke control damper is
required to ensure its functional reliability
Ä
9 ‘Mainte-
nance’ on page 31 .
Fig. 3: EK-EU smoke control damper
①
Casing
②
Damper blade
③
Travel stop
④
Inspection access (optional)
⑤
Rating plate
⑥
Cover of the actuator encasing (sectional view)
⑦
Actuator
⑧
Control module AS-EM or AS-EM/SIL2 (optional)
⑨
Connecting subframe (optional)
Smoke extract
Fig. 4: Smoke extract system
①
EK-EU in a solid shaft wall
②
EK-EU in a solid wall and a duct
③
EK-JZ on a vertical solid shaft wall
④
On a vertical smoke extract duct (shaft)
⑤
On a horizontal smoke extract duct
⑥
In a horizontal smoke extract duct
⑦
At the end of a horizontal smoke extract duct
⑧
EK-EU as additional supply air inlet
⑨
Cover grilles
During normal operation Type EK-EU smoke control
dampers remain closed. For smoke extract, the smoke
control dampers in the affected fire compartment open
so that smoke can be extracted. All other smoke control
dampers remain closed.
In the event of a fire, smoke control dampers that are
used as additional supply air inlets in the affected fire
compartment also open so that smoke can be extracted.
To ensure the creation of a layer that is nearly free from
smoke, smoke control dampers used as additional
supply air inlets should be installed near the ground.
The control input signal for the actuator may come from
a duct smoke detector or from the central fire alarm
system. Using cables with specific circuit integrity for the
supply voltage ensures that the actuator is supplied with
voltage even in the event of a fire and hence that its
function and the communication are maintained.
Supply air and smoke extraction in ventilation sys-
tems
When authorised by building authorities or authorised
bodies, smoke extract and supply air applications as
well as ventilation can be enabled in combined systems
with smoke control dampers. Depending on the system
layout, the damper blade can be fully opened, fully
closed or in the intermediate position. Depending on
where the dampers are installed, country-specific regu-
lations may apply to ventilation applications.
Parts and function
Smoke control damper Type EK-EU 11