14_ACC Sole Source EMCS Letter.pdf

This document is a Department of the Air Force memorandum for a Sole Source Justification for Energy Management and Control System/Direct Digital Controls at Nellis Air Force Base, Virginia. The memo justifies sole source procurement from Johnson Controls, Inc. for maintaining and expanding the Direct Digital Control (DDC) system, which operates heating, ventilation, and air conditioning local loop control devices through digital computers. The system is part of an integral Energy Conservation Measure to install DDC controls throughout the base, with a network of stand-alone units capable of digital control and supervisory functions, accessible via desktop computers and designed for maintenance management, trouble-shooting, and energy management. The DDC support system must comply with specific Engineering Technical Letters (ETL-86-16, ETL-83-1) for Military Construction Program and Operations & Maintenance direct digital controls. The point of contact is Mr. H. Lewis Stepp, a Mechanical Engineer, who can be reached via DSN 574-3056 or email.