A04_Tulsa_HQ_HVAC_Plan_-_Third_Floor_-_M-3_Optimized.pdf

This is an HVAC plan drawing for the third floor of the Madrona Office Building, which appears to be part of a U.S. Department of Energy HVAC replacement project in Tulsa, OK. The drawing, labeled M-3, shows a detailed mechanical layout including terminal units, ductwork, and existing systems to remain or be removed.

The plan drawing was prepared by Lee & Browne Consulting Engineers and includes several technical notes regarding new items shown in bold, existing items to remain (shown dotted), fan-powered unit locations, new terminal unit connections to existing ductwork, and requirements for condensate drain connections. The drawing provides a comprehensive view of the HVAC system layout for what appears to be an office environment containing multiple rooms including a conference room, offices, and break room. The drawing is dated 6/23 and includes a north arrow orientation marker and scale.