mcr FID PRO
single-plane fire dampers
„MERCOR” SA –
the Company reserves the right to make modifications and changes.
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housing, in the area of insulation perforation, an intumescent seal is installed. Along its perimeter, the partition is
sealed by means of a rubber seal installed on the partition.
Normally, the fire dampers have a spigot (nipple or coupling) connection. Connection flanges are available on request.
Operation
The operating principle and behaviour of the mcr FID PRO single-plane fire dampers depends on the version and
use:
mcr FID PRO/S fire dampers
These dampers remain open during normal operation. They are closed (safety position) in the following ways:
automatically – by actuation of the thermoelectric release
manually – by pressing the control button on the thermoelectric release
remotely – by actuation of the axial electric actuator with a return spring as the supply voltage disappears
automatically – by actuation of the thermal release and the power spring
mcr FID PRO/V fire dampers for fire ventilation systems
These fire dampers remain closed during normal operation. They are opened (safety position) in the following
ways:
remotely – by actuation of the axial electric actuator without a return spring as the
supply voltage is appropriately applied to the actuator
remotely – by actuation of the electromagnetic release and spring as the voltage is supplied
mcr FID PRO/M fire dampers for mixed-mode fire ventilation systems
Depending on the function they serve, these fire dampers remain either closed or open during normal operation.
They are opened/closed (safety position) in the following ways:
remotely – by actuation of the axial electric actuator without a return spring as the supply voltage is
appropriately applied to the actuator
mcr FID PRO/T transfer dampers
These dampers remain open during normal operation. They are closed (safety position) in the following ways:
automatically – by actuation of the thermoelectric release
manually – by pressing the control button on the thermoelectric release
remotely – by actuation of the axial electric actuator with a return spring as the
supply voltage disappears
automatically – by actuation of the thermal release and the power spring
mcr
FID PRO/G pressure relief fire dampers
These dampers remain open during normal operation. They are closed (safety position) in the following ways:
remotely – by actuation of the axial electric actuator with a return spring as the
supply voltage disappears The actuator does not have a thermoelectric release.
It is possible to check manually the correct functioning of a fire damper with electric actuator for maintenance
purposes. To do this, use a special hex key which should be placed in the socket marked on the actuator. Then, by
rotating the hex key, the fire damper’s partition may be set in the desired position. Bearing in mind to take enough
care, rotate the hex key uniformly and slowly. Too fast and violent rotation may cause damage to the internal
mechanism of the actuator or the power transmission system.
To manually check correct operation of fire dampers with a manual release and control mechanism in the integrated
version for maintenance purposes, press the lever on the mechanism.
NOTE
Never try to open or close a fire damper’s partition by pulling it directly. Such attempts may cause
damage to the self-locking powertrain of a fire damper and this is not covered by warranty.
It is recommended that the fire damper were opened and closed when the ventilation system is
turned off.
