Appendix_6_-_245-D-10062_22X34_(1).pdf

This is a piping schematic document for a chiller and cooling system installation. The drawing illustrates comprehensive mechanical piping configurations for a water chiller system serving a facility's cooling needs, with two separate piping schematics depicted: a "Chiller Piping Schematic" and a "Fan Coil Cooling Piping Schematic (Typical)."

The schematic details normal cooling provided through recirculated water via the existing water system, chilled water cooling from a designated chiller serving multiple zones, and provisions for seasonal switchover between cooling and heating modes. Key components shown include an expansion tank (EX-1), closed water chillers, differential pressure regulators, circulating pumps (with both normal and emergency operation capabilities), flow control devices, temperature control mechanisms, and distribution piping to multiple fan coil units located throughout the facility. The system includes automatic switching from penthouse to chiller cooling, provisions for a heat exchanger to enable both chilled water and normal water supply operation, and multiple manually or automatically controlled isolation valves. The design incorporates emergency water cooling with specified maximum water temperature of 90°F, minimum charging pressure, and 120 GPM at 150 ft head capacity for the chiller pump. The document references basement mechanical rooms and includes detailed notes on installation requirements and operational procedures. Drawing number 245-D-10062 is assigned to these piping schematics for the Colorado State University office facility's flat roof system.