Typical Fire Suppression System Diagram

  • 1. Detection Line Conduit Covers and protects pull cables throughout the entire system.
  • 2. Fire Suppressant Tanks Pressurized with fire suppressant chemicals specific to the type of cooking and equipment being used.
  • 3. Pull Station Handle Located by an exit for safety. When the handle is pulled out fully (14 in.), cables activate the fire control system while simultaneously shutting off the supply of fuel (typically gas) to the cooking equipment (7).
  • 4. CO2 Tank Activated by pulling cable handle. When punctured, the CO2 gas opens valves on suppressant tanks and pressurizes the system, blowing off the nozzle caps (13).
  • 5. Manual Gas Shutoff Valve Manually turns off gas to supply line for service or installation of appliances. Can also be considered a backup should the automatic system fail to close off fuel supply, though that is unlikely if the system is serviced properly.
  • 6. Automatic Gas Shutoff Valve Triggered by cable when fusible links (14) break or when handle (3) is pulled.
  • 7. Gas Supply Line Provides fuel to cooking appliances.
  • 8. Duct Nozzle prevents fire from igniting any residual cooking fuel inside the exhaust ducts. Fire that has progressed inside the exhaust ducts is probably the most dangerous and difficult to control.
  • 9. Plenum Nozzle prevents fire from igniting any residual cooking fuel inside or behind the baffle filters.
  • 10. Cable Cables are still preferred over digital system or keypad activation. It’s simple and failsafe by design.
  • 11. Ansel Pipes Pipe which becomes pressurized with fire suppressant when the system is activated.
  • 12. Spray Nozzle Spray nozzles are mounted over each cooking surface and aimed for maximum efficiency and coverage.
  • 13. Nozzle Caps All nozzles should be covered with NFPA rated nozzle caps to prevent airborne grease and other contaminants clogging their openings, inhibiting proper function and spray pattern.
  • 14. Fusible Links Placed in overhead locations specific to the cooktop areas, these links are temperature rated and color-coded for different types of cooking fuel and equipment. In the event of a fire, the fusible links melt or break releasing cable tension which will automatically activate the entire fire suppression system.
  • 15. Portable Fire Extinguisher Intended for use as a secondary fire suppressant after the pull station is activated (3), the K-Class portable extinguisher can be used to control further spread of the fire. When using a portable fire extinguisher, remember ‘P.A.S.S.’: Pull (the trigger pin), Aim (point the hose toward the base of the fire), Squeeze (the handle to activate), Sweep (make a sweeping motion with the hose to disperse the fire suppressant chemical as evenly as possible).
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