12-012 Professional Engineering Services (Mechanical) – HVAC Replacement at City Hall - RFP

The City has funds budgeted to design the replacement of the HVAC system at the main City Hall building (excluding the City Council Chambers building) located at 735 8th Street South; Naples, Florida. The City is seeking proposals for mechanical engineering services to replace the current system with a new energy efficient system.

The existing system is roughly thirty (30) years old. The original HVAC system was designed to use only one air-handling unit designed to provide 26,000 cubic feet per minute (cfm) high pressure service to the building. Over the years, three (3) additional independent air conditioning units have been added to the building to supplement cooling from the single HVAC system. These systems are direct expansion (DX) Split systems. Each of these systems has a remote Condensing Unit mounted on the City Hall roof.

The two story building has characteristics that make it a challenge to manage air temperature control. There are areas impacted by radiant heat, areas that need additional cooling due to computer equipment, and areas impacted by the internal lighting itself. Additionally the building has been reconfigured internally several times, and will most likely see internal reconfigurations in the future as well.