What are the two methods of manual release described?

• A. Mechanical manual release.
• B. Electrical manual release.
• C. Remote manual release.
• D. Mechanical manual release or electrical manual release.

Answer: (D)

Manual release methods for clean agent systems are the ways you physically or electronically trigger release. One path is a mechanical manual release, where someone directly operates a lever, pull ring, or similar device to trip the release. The other path is an electrical manual release, where an electrical signal from a switch or control panel initiates the release sequence. Remote manual release is a form of electrical release operated from a distance, but the standard describes the two primary categories as mechanical or electrical. So the description that best covers what’s described is mechanical manual release or electrical manual release.