Experience Excellence with Beshere Electric

We were called in to solve retrofitting of an existing ansul fire suppression mechanical system and integrate it to meet current fire codes. This called for an automated system that operates both mechanically  and electrically. 

A diagram needed to be composed to connect all components. Mechanical Ansul controller to electrical gas valve shut off  with integrated C02 sensors and audible and visual alarm. The mechanical control also activates microswitches to ensure all electrical power is shut off  with the exception of the exhaust fan. Additional microswitch had to be added to ensure the constant operation of the exhaust fan when either the mechanical or the electrical is activated manually or automatically. 

We needed to ensure that all components  electric and mechanical were installed properly in order to integrate and ensure both activation and deactivation in case of EMERGENCY.  There are three ways in which the Ansul system is activated. 

1.)Heat activates a mechanical 

release within the hood.  

2. A manual release may be 

activated by a pull station

3. A C02 sensor relay activates the electric gas valve shut off and the mechanical gas valve shut off. 

There were two existing microswitches. We wired one to cut power to the lights, intake fan and all electrical appliances under the hood. The other one activates the low voltage relay in the C02 sensor control to trigger the gas valves electric shut off. An additional microswitch had to be installed to prevent the exhaust fan from loosing power during an EMERGENCY.   

A mechanical system, manual pull station, a mechanical gas shut off, an electric gas shut off, a fire suppression chemical tank, micro switches, audible alarm, visual alarm, C02 sensors, relay, an electric gas valve reset, a transformer. Manual switches to operate hood lights, intake fan and exhaust fan. A refrigeration power outlet, multiple 120 volt circuits, 24 volt control circuit all wired to 

work together for one purpose.