A round neck lay-in ceiling diffuser integrates into a suspended ceiling system and connects to a flexible supply duct. The flexible duct ties back to a spin-in fitting equipped with a volume damper mounted on the main supply branch. A note specifies a minimum flex duct radius of one and a half diameters with a four-foot maximum length, directing installers to an alternate detail if the radius cannot be met.
NOTES: 1 1 SPIN-IN FITTING W/ VOLUME DAMPER SUPPLY BRANCH CEILING FLEX. DUCT 1.5 DIA. MINIMUM FLEX DUCT RADIUS (4' MAX LENGTH). WHERE 1.5 DIA. TURN CAN NOT BE MET USE DETAIL 2/M6.01 NONE 1 Typical Round Neck Lay-In Ceiling Diffuser
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