52 version 5.2.6
Application
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iSWAY-FC - compact pressurization unit with integrated control system
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The iSWAY-FC series compact pressurization units (pressure differential kits in accordance with EN 12101-6)
are comprehensive technical solutions designated to overpressure protection of both vertical and horizontal
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escape routes in the various buildings in case of fire. All iSWAY-FC series units are equipped with predictive
algorithm regulators which provide automatic adjustment of the operating parameters to the dynamic changes
of the ambient e.g. wind speed and direction, air temperature and internal parameters e.g. different evacuation
scenarios. Capacity of the air supply axial flow fan is continuously adjusted by means of the Danfoss frequency
inverter with the FIRE MODE function which shall be applied in smoke and heat control systems.
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Correspondent iSWAY-FC units can be equipped with dedicated automatics enabling to protect of certain
spaces depending on the local requirements in the building.
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Due to the applied control system and wide range of accessories iSWAY-FC series units can be used to protect
number of spaces with different cubature e.g. staircases, lift-shafts etc. Moreover due to the compact design
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and structure iSWAY-FC series compact pressurization units can be assembled almost anywhere inside the
building e.g. technical floors, roof level or ground level.
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Technically iSWAY-FC series units are comprehensive technical solutions for overpressure protection against
smokiness of escape routes in buildings in case of fire. Thanks to a compact design and a wide range of versions
this units can be installed almost anywhere in the building, whereas varying performance of offered fans provides
the required level of pressure gradient and normative velocity of air outflow from the protectedspaces.
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Units from the iSWAY-FC series are designed to produce the set value of overpressure within the space
of staircase, shaft of rescue elevator or in a system of separate elevator shafts (each with its own air supply point
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in reference to the fire floor. It is also possible the use iSWAY-FC units to control the pressure in the air supply
duct.
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iSWAY-FC units may be used to protect a single space, where a single control system built into the unit's housing
is sufficient. Producing and controlling the overpressure at the set value prevents the infiltration of smoke and
hot fire gases into protected space while keeping escape routes smoke free. Supplying the air into the space
protected by overpressure can be realised using a single air supply point, as well as through multiple injection.
Thanks to the use of MAC-FC regulator, there is no need for mechanical over-pressure relief dampers (pressure
control dampers) as elements for pressure control. This is particularly important for the installation, in which
to provide normative pressure criteria, and flow to the protected space large air supply rates are required.
Therefore, large-size mechanical damper are required, which may be difficult or even impossible to achieve.
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Figure 1. Exemplary illustration of connection of iSWAY-FC unit to the protectedspace
www.safetyway.pl
Static pressure measurement
point inside the protected space
Reference pressure measurement
point e.g. ambient, fire floor
Type of the protected space:
staircase, fire-fighting lobby,
escape corridor etc.
Actual air leakage rate
