Conventional fire alarm

Conventional fire alarm

We provides effective fire protection and construction solutions for residential, commercial, industrial and institutional buildings

When it comes to fire safety, it is paramount to protect the very foundation of your business. American Fire & Security employs the leaders in the fire protection industry to install a fire alarm system that meets local and national fire codes, providing safety and security for Ohio businesses throughout the state. Let us protect your foundation as well.

American Fire & Security will work with you to design and custom-build the fire alarm system that best fits your needs. Whether it’s the size of your business, specific considerations for your industry or simply budget concerns, we can guarantee the right alarm system for your company.

  •     Fire Department Submittals
  •     New Construction Bids
  •     Required NFPA Inspections
  •     Fire Alarm Systems
  •     Professional & Certified Fire Alarm Installation
  •     Fire alarm and life safety experts in state fire codes and local AHJ requirements.
  •     Company is properly licensed, bonded and insured
  •     Systems meet all NFPA, FM and UL requirements


The philosophy of a conventional system revolves around dividing the building into a number of areas called zones. The detectors and

Call points within each zone are then wired on dedicated circuits. In the

event of a detector or call point being triggered the panel is able to identify which circuit contains the triggered device and thereby indicate which zone the fire alarm has come from. It is then necessary to manually search the indicated zone to pinpoint the exact cause of the fire alarm.

Because most conventional detectors are simple two state devices they can only be in either a normal or fire condition.

Although modern components and good system design can go some way to reducing potential problems, it is not uncommon for Conventional systems to generate unwanted alarms due to certain operating conditions or transient  Environmental conditions such as the presence of steam near to a smoke detector.

A key development aimed at reducing such unwanted Alarms has been the multi-criteria detector.

Traditionally, detectors were designed to respond to particular fire phenomena such as heat or the presence of smoke. However, Cooper now offer multi-criteria devices, which contain both a smoke sensing element and a thermal sensing element.
The fire alarm decision is taken by analysis of the responses from both elements, resulting in improved detection performance as well as greatly enhanced false alarm suppression.


Sounder Circuits

image008In addition to the detection circuits, there is also a need for separate circuits of alarm annunciation devices such as sounders and beacons to signal the existence of a fire alarm condition to the building

Users. For sounder circuit continuity monitoring to function fectively, sounder circuits have to be wired in a single radial circuit, spurs and tees are not permitted.

Almost every conventional fire panel will have facilities for more than one sounder circuit and generally the higher the specification of the panel or the higher the number of detection zones provided,

the more sounder circuits will be provided.