< BackAutomatic Actuation

The following is a typical scenario for an installation utilising automatic fire detection and electrical system actuation. This example shows the method of automatically actuating the system through the use of thermostats.

1. A fire starts in a protected area.
   
   
   
   
   
   
   
   
   
2. Heat and flames cause the temperature to rise to the set point of the thermostat. Upon reaching temperature, the contacts of the thermostat close, thereby completing an electrical circuit form the vehicle battery to the electric actuator located on the agent cylinder.
   
   
   
   
   
   
3. The completed circuit energises the Electric Control Head on the Agent Cylinder valve. The Electric Actuator opens the Agent Cylinder valve allowing pressurised dry chemical to flow into the distribution hoses leading to the discharge nozzles. The pressure of the entering dry chemical causes the protective dust caps located on the nozzles to be blown off.
   
   
   
   
   
4. Dry chemical extinguishing agent discharges through fixed nozzles into protected areas, to suppress the fire. Simultaneously, the relay switches the auxiliary contacts and, for example, closes a fuel shutoff solenoid valve stopping the engine.
   
   
   
   
   

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