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// CODE SNIPPET

401.4.1 Required Dampers in Intake Openings

NYC Mechanical Code 2022 > 4 Ventilation > 401 General > 401.4 Intake Opening Location > 401.4.1 Required Dampers in Intake Openings
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Outdoor air intakes shall be provided with dampers in accordance with Chapter 6.

Related Code Sections


401.4.1 Ventilation, Required Dampers in Intake Openings
An outdoor air intake opening with gross area of more than 144 square inches (0.0929 m 2 ) shall be provided with fire dampers and smoke dampers ...
NYC Mechanical Code 2014 > 4 Ventilation > 401 General > 401.4 Intake Opening Location > 401.4.1 Required Dampers in Intake Openings
401.4.1 Ventilation, Required Dampers in Intake Openings
Outdoor air intakes shall be provided with dampers in accordance with Chapter 6 ...
NYC Mechanical Code 2022 > 4 Ventilation > 401 General > 401.4 Intake Opening Location > 401.4.1 Required Dampers in Intake Openings
401.5.1 Ventilation, Intake Openings
are constructed wholly or partly of wood. Exceptions: Smoke dampers shall not be required for outdoor air intake openings installed in any ...
NYC Mechanical Code 2008 > 4 Ventilation > 401 General > 401.5 Opening Location > 401.5.1 Intake Openings
607.5.6.1 Duct Systems, Outdoor Air Intake Openings
, or combined fire and smoke dampers when such opening is located as follows (intake and exhaust separation requirements of Chapters 4 and 5 shall also ...
NYC Mechanical Code 2022 > 6 Duct Systems > 607 Ducts and Air Transfer Openings > 607.5 Where Required > 607.5.6 Exterior Walls > 607.5.6.1 Outdoor Air Intake Openings
Reference Standard 13 Mechanical Ventilation, Air Conditioning, and Refrigeration Systems [PDF] (page 4)
Exception No. 1: Smoke dampers shall not be required for outdoor air intake openings installed in any construction required to have a fire resistance rating ...
NYC 1968 Code (Vol II) [PDF] > Reference Standard 13 Mechanical Ventilation, Air Conditioning, and Refrigeration Systems
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