Specifications include, but are not limited to: A. Specifications: Provide all labor, materials and expertise necessary to replacetwelve (12) HVAC units, the removal of one ERV, and the replacement of five (5)rooftop mushroom ventilators in various areas of the Rockingham CountyComplex.Rockingham County desires direct replacements to the extent possible.All new air handlers to include UV light systems. Factory installed is preferred ifavailable.B. Existing Units:•ND-1 Trane modular air handler in Penthouse.SN: K92H43323Trane condenser on roof (shared with ND~2).ModelRAUCC40EBZ1300DF00029C08F05998SN:•ND-2 Trane modular air handler in penthouse. SN: K92H43281Trane condenser on roof (shared with ND-1 ).•ND-3 Trane modular air handler in penthouse.Odyssey condenser on roof.SN: K92F31168Model TTA120E300AASN: 12243ROSYA.