Appendix_C_-_Station_Control_Plane_Tech_DR_PRV_72_x_48-inch_Freestanding.pdf

This document is a comprehensive technical design set of engineering diagrams for a Tech DR. D-C Zone PRV Station Control Panel, prepared by EMA (Engineering and Management Associates) for the City of Tucson Water Department. The 16-page technical drawing set details the electrical, control, and communication systems for a water pressure reducing valve (PRV) station, with intricate schematics covering panel layouts, power distribution, analog loop diagrams, termination details, and communications wiring. The drawings are dated 26-Sep-2020 and appear to be part of a technical design and engineering documentation package for a specific water infrastructure control system.

The technical drawings showcase extensive detail for a complex control panel system, including multiple power supply configurations (120VAC, 24VDC), digital and analog input/output modules, communication interfaces, and comprehensive wiring diagrams. The drawings utilize Allen-Bradley and other industrial control components, with careful attention to electrical design, grounding, circuit protection, and signal routing. The system appears designed for precise monitoring and control of water pressure and flow, with redundant systems and multiple failsafe mechanisms integrated into the panel's architecture. The documentation suggests a high-precision engineering approach to municipal water infrastructure control, with sophisticated electronic and communication systems to manage water distribution infrastructure.