16. Air Distribution Equipment
16.1 Ceiling Diffusers
16.1.1 Round, square and perforated face made of extruded aluminum.
16.1.2 Finish Coating: natural anodized aluminum finish basis color white. Volume damper finish coating black color.
16.2 Grilles and Diffusers
16.2.1 Frame and blades made of extruded aluminum.Adjustable blades
16.2.2 Finish Coating: natural anodized aluminum finish basis color white. Volume damper finish coating black color
16.3 Slot Diffusers
16.3.1 Frame and blades made of extruded aluminum.
16.3.2 Finish Coating: natural anodized aluminum finish basis color white. Volume damper finish coating black color
16.3.3 Minimum two air deflectors in each slot
16.3.4 Plenum box: galvanized steel sheet GA. 24 acoustically lining density of 48 kg / m3
16.4 Bar Grilles
16.4.1 Frame and blades made of extruded aluminum.
16.4.2 Finish Coating: natural anodized aluminum finish basis color white. Volume damper finish coating black color
16.4.3 Plenum box: galvanized steel sheet GA. 24 acoustically lining density of 48 kg / m3
16.5 Duct Grille
16.5.1 Grille aluminum and damper blade electro-galvanized steel.
16.5.2 Finish Coating: Powder coated
16.6 Nozzles
16.6.1 The face cover and the nozzle are made of aluminum natural anodized aluminum finish.
16.7 Execution
16.7.1 Application:
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- Units shall be rated in accordance with ASHRAE 70.
- Air outlet application shall be based on space noise level of NC 35 maximum generally, NC 25 maximum in conference rooms.
- Outlets shall be provided with sponge rubber seal around edg
- Baffles shall be provided to direct air away from walls, columns, or other obstructions within radius of diffuser operation.
- Plaster frames shall be provided for diffusers located in plaster surfaces.
- Lay-in type frames shall be provided for diffusers in lay-in ceiling.
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16.7.2 Installation:
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- Air outlets and inlets shall be installed in accordance with manufacturer’s printed instructions.
- Air outlets and inlets connected to ductwork shall be installed with an airtight connection and to allow service and maintenance of dampers, air extractors and fire dampers.
- Ductwork visible behind air outlets and inlets shall be painted matt black.
- Exposed surfaces shall be cleaned after installation to remove burrs, dirt and smudges.
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