SOURCES SOUGHT -- DIRECT DIGITAL CONTROL (DDC) SYSTEM, NAVAL SURFACE WARFARE CENTER (NSWC), DAHLGREN, VIRGINIA SOURCES SOUGHT NOTICE -- EFA Chesapeake will be executing various construction and renovation projects at NSWC Dahlgren, Virginia during fiscal year 1999. Some of these projects will require direct digital control (DDC) systems to control heating, ventilation, and air conditioning (HVAC) systems. The DDC systems will be integrated into an existing base wide Siebe Environmental Controls Network 8000 System. Sources are sought to provide DDC systems as follows: Provide a DDC system as a distributed control system. The system shall have stand-alone digital controllers, a communications network, and a separate workstation computer with workstation software. The control system shall be capable of down-loading and up-loading programs between an existing remote workstation and the digital controllers. the new DDC system shall be fully compatible with the existing Siebe Environmental Controls Network 8000 located throughout the base such that the existing DDC system can fully communicate with the new DDC system without the use of gateways or routers and without the loss of any existing capability and flexibility. The new DDC systems shall be similar to the existing system such that maintenance personnel have little problem learning and using the new system. Provide written qualification statements to Steven Moody, Contracting Officer, at the above address, attn: Code 0212, by close of business 5 October 1998. In the absence of other qualifying sources, it is the intent of this agency to identify Siebe Environmental Controls Network 8000 as the name brand product within the construction documents for all upcoming NSWC Dahlgren projects for fiscal year 99, as no other type of equipment will satisfy the minimum requirements. Posted 09/23/98 (W-SN253450).

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