Heat and Smoke Vents are designed for emergency smoke and heat ventilation. They are life saving devices. Smoke door repairs & inspections should be routinely done to ensure they operate in the event of a fire.
Smoke vents are life saving devices. A regular, diligent smoke door inspection and upkeep program is needed to ensure the units perform as designed. It is up-to building owners and facilities managers to keep their units in working shape. Fire Marshals often check in and issue orders to replace or fix.
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An annual smoke door repairs & inspection for each smoke vent should be on file and detailed with dates and procedures. Any special mechanisms, such as gas shocks, shall be inspected individually each year or as specified by the manufacturer.
Smoke Door Inspection Details:
Smoke doors shall be activated by pulling on manual release or operating door winches. Latches should immediately release smoothly and open moving through its designed travel. Smoke doors should open fully without assistance or interruption which would indicate a faulty piston, sticking weather seal, or corroded bearings.
With smoke doors open, inspect the restraining cable system. Cabling should have ample tension and no frays. Observation shall be made of the whip and travel path of cable, noting any possible obstruction that would delay release of the smoke doors. Any interference shall be corrected by removing obstruction and noted immediately.
All operating levers, latches, hinges and weather-sealed surfaces shall be examined to determine conditions, such as deterioration and accumulation of foreign materials. An operational test shall be performed after removal or correction of any issues.
Inspect the fusible link to determine the date and temperature rating stamped on each fusible link. Fusible links have a life expectancy of 5 years. If during the inspection the fusible link is 5 years or older, it must be replaced with a new fusible link with the identical temperature rating.
Smoke hatch vent door release winch from Thern. Fire, smoke, heat vents are required in most theaters and multi-story structures. Currently, many fire vents are operated using hand winches or other types of equipment not specifically designed for this use. Testing and resetting fire vents is a difficult challenge, and are not done as often as they should be. The Fire Vent Closure Winch from Thern is a unique product specifically designed to solve these problems.
