Smoke Detector Testing Procedure

Here in this article, we discussed the general testing or healthiness checking procedure of an addressable smoke detector which is used in the building management system.

Smoke Detector Testing

Before starting the job, take the proper work permit and inform to all the respective departments. Then do force the respective logics or interlocks if any (like fire suppression systems activation etc)

• Prior to testing of Smoke detector see the LED status of the Smoke Detector it should be blinking red.

• Check the voltage of the Smoke Detector, it should be + 30 Volts DC. This can be checked at the addressable base of the detector.

• Now Smoke Detector is healthy and it is ready for testing.

• Clean the Smoke Detector’s dust by cotton cloth and blower

• Apply the aerosol spray to the Smoke Detector by solo Smoke detecting gun with the help of the Solo A3 aerosol bottle.

• Keep applying aerosol spray for 10 seconds.

• After 10 seconds LED status of the Smoke detector will change from the steady blinking red to steady red and after that alarm appears and hooter is activated on the fire alarm panel.

• To silence the hooter press acknowledge key on the Fire Alarm Panel.

• After alarm appears remove Smoke detecting test gun from Smoke Detector.

• Notedown the alarm tag and descriptions from the HMI or workstation. The alarm details must match with the smoke detector tagnumber and installed location.

• Confirm the smoke detector activation status from the respective graphics page. You have to visually identify the color change signals of the respective smoke detector on the graphics.

• Reset the alarm of the Smoke detector from Fire Alarm Panel.

• The LED status will change from steady red to blinking red.

• Smoke Detector is now working normally.

• Repeat the above procedure for all the remaining smoke detectors.

• Normalize the forced interlocks or logics if any.

• Close the work permit.

Note: The mentioned voltages or LED colors sequence may change as per the vendor or model of the smoke detectors.

Author: V Hemanth

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