A key aspect of fire detection is to identify a developing fire emergency in a timely manner to alert the buildings’ occupants and fire emergency organizations. This is the role of fire detection and alarm systems which serve as initiating devices and provide a means to identify a developing fire through either manual or automatic methods.  The Annex Group Inc (TAGI) understand the importance of protecting lives and property by providing fire protection services through a combination of addressable fire alarm systems and experienced technicians to ultimately keep you in compliance with the National Fire Protection Association (NFPA72) Fire Code.

A fire alarm system is designed to detect the unwanted presence of fire and consists of components as well as circuits to monitor environmental changes associated with combustion.
Components of a Fire Alarm System:
Control Panel:  
The Fire Alarm Control Panel (FACP) is the “brain” of the fire alarm system.  It monitors input and control output through various types of circuits. FACP processes all abnormal conditions (alarm, trouble and supervisory) and indicates appropriately based on action programmed for the respective device.

The key advantage of detectors is their ability to identify a fire while it is still in its developing stage and provide added opportunity for emergency personnel to respond and control the developing fire before severe damage occurs.  The following are types of detectors included in a fire alarm system.

Beam Detector is used to protect large areas where spot type area smoke detectors are not practical. It is a light beam that when broken by any combustible particles will set the detector.

Smoke Detector is a device that detects visible or invisible particles of combustion. Smoke detectors have been shown to be very effective in reducing fire damage and loss of life.

Duct Smoke Detector is designed to sample air flow in the HVAC air duct and to detect presence of particles of combustion.

Heat Detectors are sensors that detect abnormally high temperature or rate of temperature rise. Heat detectors have been shown to be very effective in reducing fire damage and are available in two general types, rate-of-rise and fixed temperature.

The rate-of-rise heat detectors activate the alarm when the room temperature increases at a rapid rate. This type of detector is more sensitive than the fixed temperature detector. The rate-of-rise heat detector does not have to be replaced after it has activated the fire alarm.

The fixed-temperature heat detectors activate the alarm when the detector components melt at a preset temperature level. The fixed-temperature heat detectors normally require replacement after they have sounded an alarm. However, intelligent heat detectors will usually reset themselves.  

Carbon Monoxide Detectors are required in any building that has fossil (gas and oil) fuel burning equipments.  The carbon monoxide detector indicates a concentration of carbon monoxide at or above the alarm threshold that could pose a risk to the life safety of the occupants and requires immediate action.

Pull Stations:  



A manually operated device used to initiate an alarm signal. Some fire alarm systems are activated automatically while other fire alarm systems must be activated manually. A person who notices a fire emergency must activate the alarm by hand. Fire alarm systems that are manually activated use fire alarm pull stations. Fire alarm pull stations should be located near the exits throughout the protected area so that they are conspicuous and accessible.


Flow Switches  


If a building has a sprinkler system, it may have switches that will detect water flowing in it.  These switches will then cause the building fire alarm system to activate. It is designed to signal when water flows through the fire protection system.

Emergency Lights  
Emergency lighting provides two safeguards for a building in the event of power failure; first, safe and prompt access to emergency exits (egress) and second, to provide lighting of sufficient levels, for a sufficiently long duration, to permit safe and orderly shutdown of processes that might become hazardous if simply abandoned.
Services Offered  

Why test and inspect your Fire Alarm System?
Here are six reasons!

1.  Lives are at stake
2.  To meet the requirements of your local building department
3.  Insurance carrier may reject your claim without proof of inspection.
4.  Limits your liability for any potential injuries
5.  Assures that the system does not create nuisance alarms
6.  It is required by the National Fire Alarm Code NFPA 72

How frequently should tests be done?
NFPA-72 Fire Alarm Testing Frequency requirements:

Weekly Requirement:         Visual inspection of panel trouble signal
Quarterly Requirement:       Visual inspection of all fire sprinkler devices connected to the alarm.
Semiannual Requirement:  Test of sprinkler water flow switches (flow water or manually trip flapper)
Annual Requirements:        Test and visual inspection of panel functionality, LED's, fuses, etc…

Fire Detection services offered by The Annex Group Inc (TAGI)
Our company is licensed/cetified to do installations and inspections by City and State of New York.  We design, supply, install, test, inspect, maintain and monitor fire detection/initiating devices to include:
·         Pull Station
·         Horn/Strobe (combination signal)
·         Strobe (signal only)
·         Heat Detectors
·         Smoke Detectors
·         Duct Smoke Detectors
·         Carbon Monoxide Detectors
·         Gas Detectors
·         Water Flow Switches
·         Fan Shutdown Relay
·         Emergency Lights
·         Fire/Smoke Dampers