HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… … Wikipedia
Direct digital control — (DDC) is the automated control of a condition or process by a digital device (computer).[1][2] A very early example of a DDC system meeting the above requirements was completed by the Australian business Midac in 1981 1982 using R Tec Australian… … Wikipedia
Direct Digital Control — (DDC) refers to the ability to control HVAC (Heating, Ventilating, and Air Conditioning) devices via microprocessors containing a software performing the control logic. DDC receive analog and digital inputs from the sensors and devices installed… … Wikipedia
Duct (HVAC) — A round galvanized steel duct connecting to a typical diffuser Fire resistance rated … Wikipedia
Dedicated outdoor air system — A dedicated outdoor air system (DOAS) is a type of HVAC system that consists of two parallel systems: (1) a dedicated outdoor air ventilation system that handles latent loads and (2) a parallel system to handle sensible loads.[1] The graph on the … Wikipedia
Air Movement and Control Association — The Air Movement and Control Association International, Inc. (AMCA; pronounced Am Cah ) is a nonprofit organization that creates standards for, tests, and rates Heating, Ventilating, and Air Conditioning (HVAC) equipment. It is best known for its … Wikipedia
Mechanical room — in a large office building. A mechanical room or a boiler room is a room or space in a building dedicated to the mechanical equipment and its associated electrical equipment. Unless a building is served by a centralized heating plant, the size of … Wikipedia
Martin AN/FSG-1 Antiaircraft Defense System — Missile Master military command and control system … Wikipedia
Energy management system — An energy management system (EMS) is usually a system of computer aided tools used by operators of electric utility grids to monitor, control, and optimize the performance of the generation and/or transmission system. The monitor and control… … Wikipedia
Mercedes-Benz W221 — For a complete overview of all S Class models, see Mercedes Benz S Class. Mercedes Benz W221 Manufacturer … Wikipedia
ASHRAE Handbook — The ASHRAE Handbook is the four volume flagship publication of the nonprofit technical organization American Society of Heating, Refrigerating and Air Conditioning Engineers, Inc. (ASHRAE). This Handbook is considered the practical repository of… … Wikipedia