A sheet metal duct connects to a return and exhaust system and extends to a volume damper and ceiling grille. The grille is integrated into the ceiling assembly, with duct sizes and routing determined per the floor plans.
VOLUME DAMPER SYSTEM TO RETURN/EXHAUST EXTEND AND CONNECT (SEE PLANS FOR SIZE) SHEET METAL DUCT CEILING NONE 3 DUCTED RETURN-EXHAUST GRILLE
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