mcr FID B
single-plane fire dampers
“MERCOR” SA
– The company reserves the right to modify and change the document. Version FID B 21.07.30.02
13/22
B
B+78
H
H
+78
5
o
12
MWB system grille
The mcr FID B damper can be delivered by the manufacturer with a system cover grille. In case of specific
architectural requirements, the structure of the system masking grilles allows covering the damper and the
grille with additional masking grilles.
o
10
Drilling area
Introduction of electric cables for electric power supply of the actuator
The introduction of electric cables to power the actuator should be done by drilling the actuator casing
with a Ø10 drill. The openings can be made in any plane of the casing marked in the drawing above.
After inserting the cables, fill the gap between the cable and the actuator housing with fire rated material
ensuring appropriate fire resistance, provided for the application, or use appropriate electric glands. The
power and control cables must have adequate fire resistance that guarantees the supply of the control
signal to the device in the event of a fire.
6.4. ELECTRICAL CONNECTIONS
With the fire damper properly installed and embedded connect the electrical system wiring to the fire
damper, if the device features controls or other parts that require electric power supply. The following
shows the connection diagrams and basic electrical data for the trigger control gears supplied with the
mcr FID B fire dampers.
