Return air definition

Return air means air that has passed through the last active working place on each split, or air that
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Return air means air that has passed through the last active working place on each split, or air that has passed through abandoned, inaccessible, or pillared workings;
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Return air means air that has passed through the last active working place on each split, or air that has passed through worked-out areas, whether pillared or nonpillared.
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Examples of Return air in a sentence

  • Return air must be ducted due to the mall smoke evacuation system, if applicable.

  • Return air diffusers shall be identical to supply air diffusers except that they do not incorporate volume control dampers.

  • Return air grills shall also be Powder coated extruded aluminum construction.

  • Return air shall be taken from the area supplied or adjacent to the area in the same temperature control zone.

  • Insulation of drain piping by expanded polyethylene.07.00.01 INSULATION OF DUCTING07.00.02 THERMALSupply or Return air duct shall be insulated with 75 / 50 / 25 / 13 mm thick Nitrite "O" class.

  • Return air plenums are not acceptable.Duct insulation shall be external wrap only; no internally lined duct will be accepted.

  • Return air will be delivered back to the rooftop unit via a galvanized return air duct distribution system connected to low wall return air registers.

  • Return air on the floor is through air handling lighting troffers and ceiling plenum.

  • Ductwork Supply and Return air shall be ducted (except at raised floor systems).

  • Return air shall be filtered by means of a long-life washable permanent filter.


More Definitions of Return air

Return air means air that has passed through the last active working place on each split, or air that has passed through abandoned or worked-out areas. Area within a panel shall not be deemed abandoned until inaccessible or sealed.
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Return air means air that has passed through (i) the last active working place on each
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Return air. . . . . means air that has been used to ventilate any working face in a coal-producing section or pillard area, or air that has been used to ventilate any working face if such air is directed away from the immediate return. (Emphasis added).
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Return air means air that has passed through (i) the last active working place on each split or (ii) an abandoned or worked-out area. No area within a panel shall be deemed abandoned until it is inaccessible or sealed.
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Related to Return air

  • Return Destination means the place to which the Insured expects to return from his/her Trip as shown in the Application.

  • Return Date means the date on which the Insured is scheduled to return to the point where the Trip started or to a different specified Return Destination. This date is specified in the travel documents.

  • Yearly (1/Year) sampling frequency means the sampling shall be done in the month of September, unless specifically identified otherwise in the effluent limitations and monitoring requirements table.

  • Location Routing Number (LRN means the ten (10) digit number that is assigned to the network switching elements (Central Office–Host and Remotes as required) for the routing of calls in the network. The first six (6) digits of the LRN will be one of the assigned NPA NXX of the switching element. The purpose and functionality of the last four (4) digits of the LRN have not yet been defined but are passed across the network to the terminating switch.