Summary
Requirements and specifications: F-12 – Demo fan and associated ductwork. Cap existing ductwork where it enters female head above
sheetrock ceiling. F-12 will no longer be used. Demo all wiring and conduit, including control wiring back to the BMS. Replace sheetrock ceiling and install new access door in Female Head after overhead work has been completed. Prep and paint with like color paint. Remove drop ceiling in hallway outside female head to access exhaust fan, ductwork, and wiring to be demoed. When overhead work is completed, reinstall drop ceiling and replace as necessary. Install new ceiling tiles. F-7 – Demo F-7 and all associated ductwork from F-7 transition to exit point on the roof. Ensure remaining ductwork back to dishwasher is properly sloped. Demo existing wiring and conduit, including any control wiring. Install properly sized and sloped new stainless-steel ductwork, with welded seams, up to new properly sized roof-mounted exhaust fan with backdraft damper. Install new properly sized circuit breaker for new roof-mounted exhaust fan. Route properly sized electrical wiring and conduit to new properly sized disconnect for new exhaust fan. New disconnect shall be mounted on the roof near the new exhaust fan. Route properly sized new wiring and conduit from disconnect to exhaust fan. Install new control wiring and conduit connecting dishwasher to new exhaust fan and exhaust fan to BMS for monitoring and alarms. Ensure new exhaust fan runs an
additional 15 minutes after dishwasher shuts off. Seal area where ductwork and conduit exit the building to match existing. See attached file.