10-B162 Controls3.pdf

This document is a construction control drawing for an expanded rehab medicine and spinal facility at NAVAICS Prescott, Arizona. The drawing package includes mechanical system specifications, chilled water (CHW) metering controls, elevator sump pump monitoring, and a comprehensive chilled water system control diagram with base PID (proportional-integral-derivative) logic.

The drawings specify detailed control requirements for the facility's mechanical systems, including monitoring of elevator sump pump operations, chilled water distribution cooling (CHW) with factory-provided controls and a user-adjustable setpoint schedule, and air-cooled chiller controls with fully modulating factory controls. The CHW system design incorporates an adjustable schedule to maintain system capability with manual override capability and the ability to determine system enable/disable status on an hourly basis for up to 365 days. The document establishes alarms for high chilled water temperature, low chilled water temperature, and differentiates between all alarms with individual audible notification. Campus CHW metering controls at ALT 1 are depicted with primary flow monitoring from Campus connections to Building 148. The system includes provisions for existing system pump operation through interlock mechanisms and requires that all new and existing CHW pumps operate under the factory-provided control system with direct operator control via a user-adjustable interface. The control drawings represent 95% construction documentation prepared by GLHN architects and engineers, dated October 2012, with drawing number 148-MI603.