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Operations & Maintenance of fire dampers
Visual check
During visual check are possible visible damages on the damper parts checked. From outer side of the damper
is damper surface, panel with release mechanism (for manufactures ZV and DV1-DV6) or actuator (for
manufactures DV7, DV9-T and DV9-T-ST) checked. During visual check from the inner part of the damper is
damper inspection lid demounted and there the sealing is checked. Damper inner casing, damper leaf, heat
fuse and all the sealing’s inside the damper are checked as well. Damper leaf must be open in operation
mode.
Fire damper mechanical function check
During the check the damper should be in operation mode. That means that during visual check is the damper
leaf open. Correct function of damper mechanical release is checked by pulling the release lever (4) what
releases safety mechanism (3) and adjusting lever (1) moves from position OPEN to position CLOSED.
Closing the damper is provided by spring (10). Securing pivot (2) fits into holder (5) and by that is the damper
leaf secured against opening. After actuating the damper immediately closes. Process of closing must be
fluent without the adjusting lever (1) stopping in any other position as CLOSED. If the damper is in
manufacture with terminal switch (9), by actuating the mechanism must the terminal switch (9) signal leaf
closing. By mechanical function damper check, please push the actuating lever (4) with finger and pull your
hand back from the damper, so that it will not get injured by the adjusting lever!
After mechanical function check we put damper into operation mode. By pulling the securing pivot (2) we
release adjusting lever of mechanism (1) and move it from the position CLOSED to position OPEN. While
turning the adjusting lever (1) return spring (10) is tensed at the same time that is why we need to pull with light
power. Securing pivot (2) must fit easily into safety mechanism (3) of release lever (4).
Fig. 38 Putting the damper with mechanical regulation into operation
Содержание PKI-C EI120S
Страница 1: ...www systemair com Systemair Fire damper...
Страница 21: ...Declaration of conformity...
Страница 37: ...PVM Fire air grilles www systemair com Systemair Fire damper...
Страница 45: ...DKI Smoke dampers www systemair com Systemair Fire damper...
Страница 53: ...10 Scheme of principle of BKSE 24 6 example...
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