54
RDT-07-0122
®
NORD
fire
|
FDMQ
www.etsnord.com
17. Entry into service and revisions
17.1 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 authorized 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.
17.2 Before entering the dampers with manual control (design .01, .11, .80) into operation after their
assembly and by sequential checks and following checks must be carried out.
Verification of closing device and thermal fuse:
When you verify functionality of mechanism, follow these steps:
Adjustment of damper blade in position "CLOSED" shall be made following:
• Damper is in „OPEN“ position.
• By pressing control button mechanism, you close damper in "CLOSED" position.
• Check damper blade adjustment in "CLOSED" position.
• Closing must be strong and control lever must be in "CLOSED" position.
• If closing is not sufficiently strong and damper control lever is not in "CLOSED" position, you
must contact manufacturer and order new mechanism.
• Mechanism dimension is marked M1 to M5, according to internal forces of spring.
Adjustment of damper blade in position "OPEN" shall be made following:
• Rotate control lever by 90°.
• Lever get fasten automatically in “OPEN” position.
• Check damper blade adjustment in "OPEN" position.
Checking function and the status of the thermal fuse shall be made following:
• To check the function and the status of the fuse is possible to remove whole mechanism from
the body of fire damper - mechanism is attached to the dampers body with four screws M6.
• Removing the thermal fuse from the fuse holder of initiation device, check its correct
functionality.
• There must be a release lever, which releases initiation lever of control and mechanism will
displace to "CLOSED" position.
• If not, you need to contact the manufacturer and order new mechanism.
• Mechanism dimension is marked M1 to M5, according to internal forces of spring.
17.3 For the designs with actuating mechanisms, the following checks must be carried out:
Check the shift of the blade to "CLOSED" failure position after cutting off the power supply to the
actuating mechanism (e.g. by pressing the reset button on the thermoelectric starting mechanism
BAT, by cutting off the power supply from electrical fire signalization). Check the shift of the blade
