![background image](http://html1.mh-extra.com/html/mandik/fdmr/fdmr_installation-operation-maintenance-and-service-instructions_4052245098.webp)
Fire damper - FDMR
Page 98
Version 2023-06-15
TPM 140/19
■
Check the rotation of the blade to "CLOSED" failure position after disconnection the power supply of the actuator (e.g. by
pressing the test button on the thermoelectric activation device BAT or by disconnection the power supply from electrical
fire signalization). Check the rotation of the blade back to "OPEN" position by restoring the power supply to the actuator
(e.g. by releasing the test button or by restoring the power supply from electrical fire signalization).
For the designs with actuators, following checks must be carried out
■
By disconnecting and restoring the power supply, e.g. by a signal from electrical fire signalization.
■
By pressing the test button on the thermoelectric activation device BAT (simulating fuse tripping).
The check of function of the damper with actuator can be carried out as follows
■
The function checks of the optical smoke detector are to be carried out by employees of an authorized organization who
have corresponding electrotechnical qualification and have been properly trained by the manufacturer. The function
checks are to be carried out as a part of function checks of the fire dampers, at least 1x a year.
■
For the function checks, the damper blade should be in "CLOSED" position with the fan off or with closed air regulation
situated between the fan and the fire damper.
Before putting the dampers into operation and during subsequent function checks, the following checks must be carried out
for dampers with optical smoke detector
■
If the thermal fuse
Tf1
is interrupted (due to temperature outside the duct), it is necessary to replace the spring return
■
If the thermal fuse
Tf2
is interrupted (due to temperature inside the duct) , only the spare part ZBAT 72 (95/120/140) needs
to be replaced (acc.to the activation temperature).
How to proceed after Tf1 or Tf2 fuses have been activated
■
Inspection opening disassembly
■
Unscrew the screws (2pcs) and remove the cover by
tilting it.
■
Ensure each damper is fully checked for operational capa-
bility, control should be initiated from the control system
or by manual control. Damper blades should open and
close correctly and operation should be visually inspected
and documented prior to handover.
Inspection opening detail