Air duct definition

Air duct means conduits or passageways for conveying air to or from heating, cooling, air conditioning or ventilation equipment, but not including the plenum.
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Air duct means any pipe, tube, conduit or enclosed space used or to be used in any building for the transmission of air in an artificial ventilation system;
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Air duct means a tube or conduit used to convey air. Air passages in self−contained systems are not air ducts.
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Examples of Air duct in a sentence

  • Reduce the final section, including the terminal assembly, by the appropriate amount i.e. Air duct Z - 81mm and the flue duct Z - 51mm.

  • Air duct for sufficient air circulation shall be provided if necessary.

  • Air duct Work shall conform to the following restriction due to traffic conditions: Year- round a single (i.e. 1 of 4) tunnel air duct will be available to the Contractor.

  • Air duct, panel, and plenum coverings and linings, and pipe insulation and coverings shall not flame, glow, smolder, or smoke when tested in accordance with a similar test for pipe covering, ASTM C 411, Standard Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation, at the temperature to which they are exposed in service.

  • Air duct smoke detecting devices, showing listing indicating complete range of air velocities, temperature and humidity expected at the device when the air handling system is operated.

  • Air duct systems shall be adjusted and balanced so that air quantities at outlets are as indicated and so that distribution from supply outlets is free from drafts and has uniform velocity over the face of each outlet.

  • Air duct smoke detectors shall be by Air Products & Controls or approved equal.

  • HVAC Air duct cleaning solution requires technical support/ troubleshooting and human efforts, which is complex in nature as it may contain certain other technical errors/ defects when installed at customers’ facility for providing the service.

  • Air duct smoke detectors for air handling unit shutdown as required.

  • Air duct smoke detectors shall be photoelectric type conforming to Specifications for ceiling-mounted smoke detectors specifically constructed to detect products of combustion and smoke in moving air within a duct system.