Functional verification

Air flow checking

Check that the FA100 device does not signal the presence of faults, if so, close a number of sampling holes in such a way as to reduce the intake air flow by at least 20%.

At this point, check that the FA100 device detects the fault and correctly reports it to the fire control panel.

Reset the fault then open the pipeline at a suitable inspection point and check that the increase of 20% or more of the flow is detected by the FA100 device and that the fault signal correctly reaches the fire control panel.

Signalling of airflow faults (high or low) can take up to 300 seconds.

Smoke detection test

Once the flow fault has been restored, it is possible to proceed with the smoke detection test in correspondence of the sampling holes at the end of each branch of the aspirating system.

For this test the use of a smoke-generating wick is recommended, generally used to search for air infiltrations or leaks.

Smoke generated in the proximity of the sampling hole must be detected by the FA100 device and the signalling must be sent to the fire control panel.

The transport time required to transfer the aerosol from a hole to the FA100 device must be noted and compared with the project data, whether this is a sampling hole or a hole used as a “Test point”.

The maximum acceptable transport time is equal to the expected time with an increase of 20%, plus 5 seconds.

At the end of the operations, close the box cover using the appropriate screws.