EXi-F
positive pressure smoke control system
„MERCOR” S.A. –
Specifications are subject to change without notice. Version DTR_EXIF_EN_20220516
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3.
SYSTEM APPLICATIONS
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3.1.
Applications
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Smoke control in the escape routes is one of the most crucial fire prevention measures in the
building. Secure escape routes guarantees safe and efficient evacuation of people from fire-exposed
areas, facilitate fire-fighting operations and reduce damage caused by smoke, fire gases and products
of thermal decomposition.
mcr EXi-F kits control smoke in any protected area (staircases, lift wells, escape routes) by
creating positive pressure and thereby preventing smoke ingress. mcr EXi-F system can be used in
staircases with protected lobbies and is compatible with systems including at least one pressure
transmitter per protected area.
mcr EXi-F system consists of a configured set of devices preventing smoke ingress to the protected
area by increasing pressure.
Fig. 1.
Example mcr EXi-F system diagram
Depending on the demand, air can be supplied to the protected area using either a single-point
or a multi-point air supply.
mcr EXi-F includes mcr ICR pressure regulator for the air supply unit control and does not
require safety relief valves to control pressure. The exhaust vents can be installed as an auxiliary
component in the protected area.
mcr EXi-F system devices can be used in pressure differential systems, where the air is
discharged from the fire-exposed floor using gravity vents or exhaust fan (smoke ventilation system).
fan
protected area
Constant
leakage
mcr Omega control unit
differential pressure
transmitter
