How often should fire dampers be inspected?

Fire dampers are critical safety components in HVAC systems, designed to prevent the spread of smoke and fire through ductwork by automatically closing upon detection of heat. Regular inspection is essential to ensure they function properly when needed.

Inspections should be conducted at least once a year to verify that the dampers are in good working condition and can respond effectively in case of a fire. This timeframe allows for the identification and rectification of any issues that might hinder a damper’s operation, such as physical obstructions, mechanical failures, or damage that could occur over time.

The other options suggest more frequent inspections or less regular checks. Monthly inspections may not be practical or necessary given the nature and intended function of the dampers, while semi-annual inspections may not ensure sufficient coverage for potential changes or wear that can occur throughout the year. Inspecting fire dampers only when there is a fire is far too reactive and does not prioritize proactive safety measures, which are crucial in preventing fire spread effectively. Hence, establishing an annual inspection schedule balances the need for safety with practical maintenance efforts.