Mechanical Supplies
Slot Diffuser
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About
- Linear slot diffusers in one to four slots with rotatable pattern controllers and a plenum box with a side or top spigot. Continuous runs are made up with alignment strips so the joint between sections is not visible in the ceiling line.
Application
Specified in perimeter zones next to glazing, in reception areas and in premium office and hotel interiors where the architect wants a continuous line rather than a grid of square faces. Slots blowing down a glass façade counteract the downdraught from the glass, which is the reason perimeter slots survive value engineering more often than they lose.
Standards & Reference 4 cited
ASHRAE 70
The method of testing air outlets and inlets: how the performance data for a grille or diffuser is produced.
EN 12238
Aerodynamic testing of air terminal devices for mixed-flow applications: the data behind a diffuser's selection tables.
EN ISO 5219
Laboratory aerodynamic testing of air terminal devices: how a diffuser or grille's throw and pressure drop are established.
AMCA 500-D
The laboratory method for testing dampers: air performance and, critically, leakage. Leakage class is what a smoke control or energy calculation depends on.
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