And Direct digital control : this page says exactly opposite; " Central controllers and most terminal unit controllers are programmable, meaning the direct digital control program code may be customized for the intended use ".
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And Direct digital control : this page says exactly opposite; " Central controllers and most terminal unit controllers are programmable, meaning the direct digital control program code may be customized for the intended use ".
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Novar ( also "'Novar Controls "') is a manufacturing company based in Cleveland, Ohio which develops technology to centrally control and manage HVAC, refrigeration and lighting systems for businesses, using direct digital control and energy management.
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Direct digital controls ( DDC ) with real time monitoring and history provide the ability to acquire system data realtime or with trend-logging, or trending, ( over a predetermined period of time ) to observe performance, issues / troubles, and identify possible improvements to operations and maintenance.