Mandik FDMR Installation Instructions Manual page 33

Before commissioning the dampers and during their subsequent operational checks, it is necessary to check and
functionally test all the designs, including the operation of any electronic elements. Upon commissioning, these
operational checks must be completed at least twice a year. If no defect is found during two consecutive
operational checks, then operational checks may be completed once a year.
Prior to the commissioning of the dampers and subsequent operational checks, the following checks must be
completed with all the designs:
Visual inspection for proper damper installation, damper interior, damper blade, blade seating surfaces, and
silicone seal.
Removing the inspection opening cover: Unscrew the pan head screws (2 pcs) and tilt remove the cover.
For dampers with mechanical control (designs .01, .11, .80), the following checks must be carried out:
Move the damper blade to "CLOSED" position as follows:
• The damper is in "OPEN" position.
• Press the control button of the mechanism to move the damper to "CLOSED" position.
• Check the damper blade shift to "CLOSED" position.
• Damper closing shall be sharp, the control lever shall be in „CLOSED" position.
Move the damper blade to "OPEN" position as follows:
• Turn the control lever by 90°.
• The lever will automatically lock in "OPEN" position.
• Check the damper blade shift to "OPEN" position.
• 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.
• The mechanism is identified as M1 to M5, depending on the closing spring strongness.
The actuator design must be checked as follows:
The blade turn to its breakdown "CLOSED" position may be checked upon cutting off the actuator power supply
(e.g. by pressing the RESET button at the thermoelectric starting mechanism BAT or by cutting off the fire alarm
power supply). The blade turn back to its "OPEN" operating position may be checked upon restoration of power
supply (e.g. by releasing the RESET button or restoration of the fire alarm power supply).
Actuator control without electric voltage:
A special lever (part of the actuator) may be used to manually set the dampers to any position. When the lever is
turned in the direction of the arrow, the damper blade turns to its open position. As the blade movement is
stopped, in every position, the actuator will be locked. Unlocking is possible even manually as per instructions on
the actuator, or by the activation of the supply voltage.
Installation, maintenance, and operational checks of the dampers may only be completed by persons qualified for
these activities, i.e. "AUTHORIZED PERSONS: trained by the manufacturer.
The dampers must be installed in compliance with all the applicable safety standards and regulations.
Actuator reset after the fuses activation:
If the thermal protection fuse Tf1 (for the temperature around the fire damper) is burned, it is necessary to replace
the actuator, including the thermoelectric trigger.
If the thermal protection fuse Tf2 (for the temperature inside the piping) is burned, separate spare part ZBAT72 or
ZBAT95 may be replaced (according to the starting temperature).
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