What is the role of the control head in WCFS?

• A. To regulate water flow through the WCFS.
• B. To sense heat and command the discharge when activated by detectors or manual controls.
• C. To label the system status on a panel.
• D. To seal discharge heads.

Answer: (B)

The control head is the activation device for a Wet Chemical Fire Suppression System. It contains the heat-sensitive element that senses high cooking-heat levels and, when triggered (either by automatic detectors or a manual release), opens the valve to discharge the wet chemical agent through the piping to the discharge nozzles in the hood. This is what initiates the fire-suppressing action right where the fire is likely to occur.

Other options don’t fit because the system doesn’t rely on water flow regulation, labeling of status, or sealing discharged components as the primary function of the control head.