HP Performance Optimized Datacenter 20c Maintenance And Service Manual page 37

Removing the VESDA filter
1. Remove the filter cover on the front of the VESDA unit.
2. Remove the 10mm screw that secures the VESDA filter (1), and then remove the filter (2).
Replacing the VESDA filter
1. Insert the new VESDA filter (1), and then replace the 10mm screw that secures the filter (2).
Removal and replacement procedures 37