The most common assembly errors

The most common installation error, which in most cases result from ignorance or ignorance of the assembly and operating instructions of the manufacturers, belong:

– not keeping the border of the damper bricking, preventing the damper from maintaining the required fire resistance,

– incorrect bricking of the hatch – Uneven filling of the installation space with mortar or its absence, preventing the damper from maintaining the required fire resistance,

– bricking in the hatch in the open position, which, in the case of large flaps, may lead to the deformation of the body and the inability to close the flap,

– misaligned connection of the damper with the ventilation ducts, preventing the cut-off blade from opening,

– leaving impurities inside the flap or a detached seal, causing the shut-off partition to be blocked,

– contamination of the control mechanism with mortar or paint, causing its malfunction or damage,

– lack of required service spaces and unavailability of the hatch for service purposes, preventing servicing (a design error may also be the cause),

– incorrect connection of control cables and limit indicators.