Which component provides the manual activation option for WCFS?

• A. Manual pull station
• B. Heat detector
• C. Master valve/actuation with manual pull
• D. Automatic discharge head

Answer: (C)

In a wet chemical kitchen fire suppression system, actuation can come from automatic detection or a manual trigger. The option that provides a manual way to release the agent is the master valve/actuation assembly that includes a manual pull. Pulling the manual handle mechanically trips the valve, releasing the suppressant through the discharge heads. This integrates the manual activation directly into the valve mechanism, making it the designated manual activation path.

Heat detectors and automatic discharge heads are designed for automatic actuation; they respond to heat or a control signal to release the agent without any manual action. A separate manual pull station could exist in some systems, but NFPA 17A WCFS configurations typically rely on the master valve/actuation with manual pull for the manual activation option.