Direct digital controls

Direct digital controls

The application of microprocessor technology to environmental building controls. DDC systems make it possible to control heating and cooling functions with software that takes into account a wide range of variables, thereby achieving greater efficiency.
References in periodicals archive ?
A new Schneider Electric I/A series BAS replaced existing pneumatic and older direct digital controls in the building.
Tenders are invited for Direct Digital Controls for HVAC and LED Lighting Replacement
com)-- Direct Digital Controls is pleased to announce that they have been awarded the 2013 Alerton Platinum Dealer Award.
Upgrades included installing direct digital controls of facility systems, as well as LED lighting with occupancy sensors, new HVAC systems and solar-thermal heating panels.
All units are available with factory-installed and-tested stand-alone or direct digital controls for integration with building automation systems.
We also find that many buildings have pneumatic controls for heating, ventilation and HVAC systems, which can be replaced with direct digital controls, which provide the highest level of precision and maximize energy efficiency.
The conservation measures and infrastructure upgrades to be installed by Constellation under the EPC include: energy efficient lighting and occupancy sensors; low-flow toilets and faucets; HVAC replacements and direct digital controls upgrades; building mechanical systems upgrades; caulking and weather stripping; and roof replacements.
The redevelopment incorporates many state-of-the-art design elements, including a passive vapor mitigation system and highly efficient mechanical and electrical systems monitored by an elaborate network of direct digital controls.
Contract Awarded for Maintenance and repair of heating, ventilation and air conditioning (hvac) equipment and direct digital controls (ddc) located at the new london naval submarine base, groton ct
An HVAC design with direct digital controls for centralized monitoring, adjustment, and alarms for each piece of equipment.
The conservation measures installed by Constellation include: campus-wide interior lighting retrofits; air system and tower condition improvements; HVAC Direct Digital Controls expansion, upgrade and integration; variable-frequency drive installation on up to four dozen fan motors; kitchen hood improvements; pipe and blanket insulation; retro-commissioning of various building equipment and water conservation measures.
Direct digital controls that help monitor and adjust HVAC system s for comfort, costs and energy efficiency.