District of Columbia Public Library, Palisades Branch Library, Washington, D.C.
MEP/FP Design Build
At the time of its opening (in 1964), the Palisades Branch Library was one of the largest branches in the public library system - housing up to 60,000 volumes. In 2018, Cox Graae & Spack Architects and MCN Build were contracted to design build the renovation. SETTY provided MEP/FP design engineering services for the highly efficient and versatile Variable Refrigerant Flow (VRF) units with an indoor Dedicated Outdoor Air System (DOAS) to provide space conditioning and ventilation to the library. To avoid reinforcing the existing roof and keep noise source away from the library spaces, VRF condensers were located in above grade parking lot with direct buried refrigerant piping from indoor VRF Fan coil units to outdoor condensers, there by meeting the LEED mandated acoustic levels for a library.