mcr FID PRO
single-plane fire dampers
„MERCOR” SA –
the Company reserves the right to make modifications and changes.
21/24
Connection diagram for transformer module type MP230/24
Note! The mechanism limit switches position has been provided for the safety position of the fire damper.
For proper operation of a device equipped with electrical actuators, it is recommended that the rated voltage housed
tolerance of 24V±2% or 230V±2%. Power supply devices other than listed above may cause malfunction and will not
be covered by the warranty conditions.
RST release and control mechanism
In the RST manufacturing version, limit switches are installed in the fire damper’s housing as separate components.
The fusible release link is installed on the fire damper’s partition. The power spring is installed on the fire damper’s
partition.
To install the fusible release link in the RST manufacturing version:
Put the fire damper’s partition in the open position.
Apply fusible link on the hooks attached to the body of the fire damper and partition.
Remove the nut and lock the hook on the body of the fire damper by tightening up.
Separate limit switches of fire dampers – for the RST manufacturing version
WK1 – single limit switch – signalling of the closing of the fire damper’s partition.
WK2 – a set of two limit switches – signalling of the closing and opening of the fire damper’s partition.
Technical data (limit switches)
WK1 and WK2 limit switches
1 x NO/1 x NC SPDT (changeover switch) 5A, 230V AC
Limit switches working temperature
-25 ...+85°C
Housing
plastic
Movable hook with a nut
Fusible link
Fixed hook on the fire
damper’s partition
Fire damper’s partition
Make a hole in the duct and pass the
cable through the rubber gland (not
included)
Service duct
KRW
or other service
system
