Mandik FDMR 60 Manual page 43

The assembly of the dampers must be carried out while observing all applicable safety standards
and regulations.
All flange and screw joints must be conductively connected during the assembly to provide
protection against dangerous contact. 2 fan-shaped washers in galvanized version are to be used
for conductive connection; they are to be situated under the head of one bolt and under the
screwed nut.
If the damper is equipped with limit switches and the said devices are not used during operation
(e.g. because of a project change), they can be left on the damper and not connected (they need
not be dismounted). On the other hand, if a limit switch is to be added to the damper design, the
change can be implemented by adding the required device to the base plate of the damper. The
said facts must be recorded in the respective operation documentation of the damper (record books
of the damper, fire logs, etc.) and subsequently, adequate function checks must be carried out.
For a reliable function of the dampers, their closing mechanism and the seating faces of the blade
must be protected from dust, fibrous or adhesive masses and solvents.
Control of actuating mechanism without electric voltage:
You can set the damper blade in any position with the help of a special wrench (included in the
delivery of the actuating mechanism). By turning the wrench in the direction of the arrow, the
damper blade will move to the open position. By stopping the damper blade in any position, the
actuating mechanism will be locked according to the instructions on the actuating mechanism.
The mechanism can be unlocked manually according to the instructions on the mechanism or by
means of supply voltage.
Before entering the dampers into operation after their assembly and by sequential checks, the
following checks must be carried out. Visual inspection of proper damper integration , inside
damper area, damper blade, contact surfaces and silicon sealing. Check of thermal protective
fuse and closing mechanism. Check the closing function of the damper blade. This can be done
by removing of thermal fuse from damper body.
Before entering the dampers with actuating mechanism into operation after their assembly and
by sequential checks. Check of blade displacement into the breakdown position "CLOSED" can
be done after cutting off the actuating mechanism supply (e.g. by pressing the RESET button at
the thermoelectrical starting mechanism BAT or cutting off the supply from ELECTRICAL FIRE
SIGNALISATION). Check of blade displacement back into the "OPEN" position can be done after
restoration of power supply (e.g. by releasing the RESET button or restoration of supply from
ELECTRICAL FIRE SIGNALISATION). Without power supply, the damper can be operated
manually and fixed in any required position. Release of the locking mechanism can be achieved
manually or automatically by applying the supply voltage. It is recommended to provide periodical
checks, maintenance and service actions on Fire Equipment by Authorized persons. The author-
ized persons can be trained by Producer, or by authorized Distributor. All effective safety
standards and directives must be observed during fire damper assembly.
For regular or exceptional inspection of interior of fire damper, micro-camera device can be used.
On each fire damper is ispection hole. In the case of inspection by camera, take out the black
rubber cap, insert the camera inside the damper, check interior and at the end of inspection, put
the rubber cap back tightly to cover the empty hole.
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