MD 232513 002 Closed System Makeup

A detailed schematic diagram titled “Closed System Makeup Detail,” illustrating a plumbing setup. The diagram displays a horizontal layout of various piping components, valves, gauges, and connections. The setup begins with a “Connect to System Return Main” label and proceeds to a series of components connected with lines indicating pipes. Key labeled components include a pressure gauge, a PRV (Pressure Reducing Valve), a quick fill bypass valve, a meter, an RPZ BFP assembly (Reduced Pressure Zone Backflow Prevention), and an air gap with a PVC line to a floor drain. The far right of the diagram indicates a connection to a ¾” minimum domestic cold water line. Below the diagram, notes specify technical details for the installation and components used, such as line size matching, installation height, and specifications for the water meter.