Fire alarm systems: the basics and what annual inspections involve

Who this is for

Many commercial, institutional and multi-unit residential buildings in Alberta are required by the building code to have a fire alarm system. If you own or manage one, you are responsible for keeping it working and inspected under the Alberta Fire Code.

This guide explains the parts, the standards behind them, and the inspection cycle in plain language. It is not a substitute for the code or your fire department's direction, which always take precedence.

If you have recently bought or taken over a building, start by finding the most recent inspection report and verification documents. They tell you what the system includes, whether there are open deficiencies, and who has been servicing it.

How the system works

• Initiating devices detect fire or are activated by people: smoke and heat detectors, manual pull stations, and sprinkler flow and tamper switches.
• The control panel supervises every circuit, knows when a wire is cut or a device is missing (a trouble condition), and decides when to sound an alarm.
• Notification appliances such as horns, bells, speakers and strobes alert occupants.
• Ancillary functions release magnetic door holders, shut down air handlers, recall elevators and release access control locks.
• Monitoring sends signals to a monitoring station that calls the fire department.
• Power comes from a dedicated circuit with standby batteries sized to keep the system running for a required time after a power failure.

Systems come in two broad styles. Conventional systems group devices into zones, so the panel tells you which area is in alarm. Addressable systems identify each device individually, which speeds up response and troubleshooting. Larger and newer buildings usually have addressable systems, and many older conventional panels are upgraded during major renovations.

Either way, the system is designed as a whole, and changes to one part can affect the rest.

The standards behind it

In Canada, fire alarm systems are built and maintained to a family of CAN/ULC standards that the building and fire codes reference. Broadly, there are standards for:

• Installation of the system, covering wiring, device placement and spacing.
• Verification when a system is new or altered, confirming every device works as designed before the building is occupied.
• Inspection and testing of existing systems, which sets out what must be checked and how often.
• Equipment listing, so panels and devices are certified for the job.

Exact editions referenced change as codes are updated. Your fire alarm contractor and the authority having jurisdiction will confirm which apply to your building.

Ask your contractor which standards and editions apply to your system when you receive a report.

Inspection and testing

The Alberta Fire Code requires fire alarm systems to be inspected and tested on a regular schedule, with a full inspection and test of every device typically done annually and certain items checked more often. Owners usually keep a log of routine checks, such as daily panel checks and periodic tests.

• Building occupants and the monitoring station are notified before testing.
• Every detector, pull station and signal is tested, along with batteries and interfaces.
• Results are recorded in a written report, with any deficiencies listed.
• Deficiencies are repaired and re-tested. Fire inspectors often ask to see recent reports.

Common problems we see

• Persistent trouble signals that staff have learned to ignore.
• Batteries past their service life, which fail the standby test.
• Detectors painted over or blocked during tenant improvements.
• Renovations that added walls or rooms without adding devices.
• Missing or out-of-date as-built drawings and zone charts.
• Access control or door holders that no longer release on alarm.

Most of these are caught by a thorough annual inspection, but only if deficiencies are actually fixed afterwards.

Another frequent issue is false alarms. Detectors in the wrong place, such as smoke detectors near kitchens or dusty loading areas, can cause repeated alarms that disrupt business and lead to fines in some municipalities. Device type and location should be reviewed whenever a space changes use.

Renovations and new work

Any tenant improvement that changes walls, ceilings or occupancy can affect the fire alarm. Changes generally need a permit, design work, and verification of the altered portion before occupancy.

Our fire alarm systems team handles device additions, panel upgrades and the coordination with access control. If you are adding electric locks, read access control basics so the fire alarm interface is planned from the start.

Common questions