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Smoke-activated doors shall be maintained to self-close or automatically close upon detection of smoke. Existing fusible-link-type automatic door-closing devices are permitted if the fusible link rating does not exceed 135°F (57°C).

Related Code Sections

705.2.5 Fire and Smoke Protection Features, Smoke- And Heat-Activated Doors
Smoke-activated doors shall be maintained to self-close or automatically close upon detection of smoke. Existing fusible-link-type automatic door ...
705.2.5 Fire and Smoke Protection Features, Smoke- And Heat-Activated Doors
Smoke-activated doors shall be maintained to self-close or automatically close upon detection of smoke. Existing fusible-link-type automatic door ...