The automatic air supply for multiple DPVs should allow for what type of maintenance?

The correct answer emphasizes the necessity for individual maintenance of the automatic air supply for multiple Dry Pipe Valves (DPVs). Each DPV requires the capability for maintenance to be performed separately to ensure that the air supply management does not interfere with the operation of the other valves.

When maintenance is conducted individually, technicians can effectively assess and repair any specific issues affecting one valve without impacting the functionality of the others. This individual approach is crucial, especially in systems where DPVs are installed in various locations and may have different maintenance needs based on their specific operational conditions. It also allows for more thorough checks on components like the air compressor, pressure switches, and control mechanisms, ultimately enhancing the reliability and performance of the fire protection system.

Additionally, this method provides easier access to each unit without disrupting the entire system, minimizing downtime and ensuring that all valves remain operational and ready to respond in case of a fire emergency.