The periodic ordinary maintenance of the smoke extractors is a fundamental and mandatory aspect, which must necessarily be carried out by qualified personnel. Initially the documentation must be presented and verified, if it is not available or only partially, it must be provided by a fire prevention professional, by the system manager.

For correct maintenance, the following steps must be followed:

Functional check: Inspection of each individual smoke evacuator

Remove any external obstructions

Check that there are no signs of corrosion on the mechanisms

Checking the integrity of the parts making up the appliance

Control of the thermal trip unit of each individual smoke evacuator

Verification of the integrity of the thermosensitive bulb and its position

Checking the integrity of the CO2 cartridge to be tested every 10 years

Checking the weight of the CO2 cartridge (not less than 10%)

Checking the state of the thermal valve

Centralized control group control

Only in the presence of a pneumatic or electric system with actuators.

Check opening of smoke vents and replacement

Opening of each individual smoke evacuator, checking the correct functioning of all the parts that expand and rotate

Replacement of worn out or damaged spare parts

Smoke vent opening control

Integrity check of the parts that make up the barriers Random check of the seal and fastening systems

Attention: these operations will be conducted only if it is possible to reach the barriers.

Checking the air intake

Integrity check of the parts that make up the openings

Functional tests

Check that there are no signs of corrosion on the mechanisms