April 03, 2014 energyair Share this post The Energy Air team recently wrapped up the HVAC system renovation for a five-story office building in Orlando that will serve as Valencia College’s District Office. The scope included the full gut of an existing building and new HVAC work for multiple floors. Two 100-ton Trane chillers were installed in the chiller yard and six air handling units are housed in mechanical rooms located on each floor. A variable refrigerant flow (VRF) system with nine ductless split systems connecting to one outdoor condensing unit was installed for the IDF and electrical rooms, allowing for independent control of each room. Working in a pre-existing building with extremely tight and unforeseen conditions proved to be a challenge. Each of the six air handlers was shipped from the factory in sections, loaded onto each floor through an existing window, and carted to their respective mechanical rooms through a temporary pathway specifically designed to accommodate their transport. They were then assembled in each mechanical room. Because of the collaborative effort of Energy Air CAD designer, Crystal Byrd, R.D. Michaels Project Manager, Chris Barnes, and the SGM design team, we were able to design and install a system that delivered upon the owner’s preferences. Even with highly concentrated areas with clearances of an inch or less, we were able to optimize the existing space for its new use. Underground chilled water piping and chilled water piping risers feeding each of the floor’s mechanical rooms were installed in the first floor parking garage, where the chilled water pump room is also located. As with most existing structures, situations and conflicts did arise, but with the cooperative efforts of the Energy Air and R.D. Michaels teams, we were able to deliver a stellar project to the owner. We would like to specifically thank the R.D. Michaels project team of Jeff Webb, project superintendent, and Chris Barnes, project manager, and the Energy Air team, which included Crystal Byrd, CAD technician, Gary Trytten, project manager, Carlos Ferrer, project foreman, and Mike Patton, pipe foreman. The installed mechanical value of the project is $1,125,000, and the total construction time was 181 days. Equipment installed includes: (2) 100-ton chillers, (2) chilled-water variable primary pumps, (78) VAVs, (700’) exposed, concealed and underground insulated chilled-water piping, (6) air handling units, (1) fan coil unit, (1) 9-unit VRF system, (1) DX system for the elevator and equipment room, (11) power ventilators, (1) complete BMS system controlling the HVAC, garage CO sensor monitoring and common area lighting, and a sheet metal wrapped duct system. Learn more about Energy Air’s experience installing commercial HVAC systems in office buildings.