Accession Number : ADA325693

Title :   Direct Digital Control Technology,

Corporate Author : NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA

Personal Author(s) : Sittel, Glen

PDF Url : ADA325693

Report Date : MAR 1997

Pagination or Media Count : 7

Abstract : Direct digital control (DDC) is a term used by industry to identify digital control systems for heating, ventilating, and air conditioning (HVAC) systems. DDC is replacing pneumatic and electric control systems traditionally used in the HVAC industry. More than 90% of new construction is the U.S. today uses DDC. Its advantages over the older systems include: (1) lower maintenance, (2) more accurate and reliable temperature control, and (3) built-in energy and maintenance management functions.

Descriptors :   *DIGITAL SYSTEMS, *TEMPERATURE CONTROL, *AIR CONDITIONING EQUIPMENT, VENTILATION, SELF CONTAINED, MAINTENANCE MANAGEMENT, ENERGY CONSERVATION, ENERGY CONSUMPTION, ELECTRONIC SWITCHES, RADIANT HEATING.

Subject Categories : Electrical and Electronic Equipment
      Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE