The Importance of Filter Replacement in VESDA Detectors

Much like the filters in your home air purifiers, furnaces, and refrigerator water dispensers, regular filter replacement in VESDA detectors is key when it comes to performance. The filter removes dust contamination from sampled air and provides a clean air bleed to preserve the detector chamber optics.

To maintain the operational integrity of the VESDA detector (VLP, VLS, VLC and VLF), it is recommended that the filter be replaced every two years. Details can be found in the VESDA SDM Maintenance Guide.

How old is your current filter?

Detailed instructions on where to locate your filter in the detector can be found in the Tech Tip document download.  Once you locate your filter, compare against the below label color history chart to determine it's age.  If your filter label matches any of the below colors, consider replacing immediately.

During the replacement process, the detector needs to be informed that a new filter has been installed. Ensure the area surrounding the filter is clear of dirt and debris prior to replacement. The filter is for single use only, it cannot be cleaned and re-used. During the filter replacement process, take the necessary steps to advise the monitoring authority that power may be removed and the system disabled.

While checking your filters if you find that your detector is more than 10 years old, you will want to consider upgrading your system. While many older ASD detectors continue to operate reliably, service and/or failure frequency may occur more frequently as result of system degradation.

Avoid untimely disruptions to normal operations by participating in the Upgrade Program.

Contact your VESDA dealer to arrange for filter replacements and a maintenance program moving forward. 

Your VESDA filter is vital to its detectors performance integrity – be sure to regularly replace your filters to ensure your facility’s smoke detection remains optimal – lives and assets are at stake.