RDT-07-0122
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NORD
fire
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FDMQ
Images are for illustrative purposes
We reserve the right to make changes
back to "OPEN" position by restoring the power supply to the actuating mechanism (e.g. by
releasing the reset button, by restoring the power supply from electrical fire signalization).
17.4 The check of function of the damper with actuating mechanism can be carried out as follows:
a) by cutting off and restoring the power supply, e.g. by a signal from electrical fire signalization
b) directly on the installed damper, with the help of the button on the thermoelectric starting
mechanism BAT (simulating fuse tripping).
17.5 Before putting the dampers into operation and during subsequent function checks, the following
checks must be carried out for dampers with optical smoke detector.
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
provably 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.
17.6 For the function checks, the dampers should be moved to "CLOSED" position with the fan off or
with closed regulation valve situated between the fan and the fire damper.
18. Spare parts
18.1 Spare parts are supplied only on basis of an order.
18.2 Control for square damper and round damper is identical.
19. Restore function of actuating mechanism after fuses initiation
If fuse Tf1 is initiated (duct outside temperature) than is necessary to change thermoelectrical
starting mechanism BAT72B-S. Whereas is initiation temperature higher than actuator
mechanism operating tempe50°C, recommended actuating mechanism manufacturer
make complete revision or change actuating mechanism and thermoelectrical starting
mechanism.
If fuses Tf2/Tf3 are initiated (duct inside temperature) than is possible change only part ZBAT72
or ZBAT95 (according initiating temperature).
20. Ordering key
20.1 Fire damper
If installation holders, installation frame or design for installation in Weichschott system are
requested, it has to be mentioned separately in the order. Installation frame could be fixed to
the damper body or supplied separately.
Ordering information
Technical specifications
Design acc. Tab. 20.1.1.
Building size
Nominal size
Type