Tag Archives: DDC

Building Controls: To Be (Centralized) or Not to Be, That is the Question

Building control systems have become highly sophisticated computer systems capable of operating nearly any piece of heating or cooling equipment. Achieving this control capability requires good input data and robust software programming. For certain systems, such as refrigeration systems, it is often advantageous to use decentralized controls for critical functions, such as compressor operation and […]

Posted in All Engagements, E-Newsletter | Also tagged , | 1 Response

A Place for Stand-alone Data Loggers

By Jeff Yirak, P.E., LEED AP BD+C, O+M Most facilities built today employ relatively sophisticated on-line measurement systems to control processes, comfort, and energy consumption.  An evolution of building automation, direct digital control (DDC) systems combine sensors with computer programming to schedule, heat, cool, and monitor our modern buildings.  Even simple systems today, such as […]

Posted in All Insignts, Commissioning | Also tagged , | 2 Responses

Selecting the right Flow Meter for your Hydronic System

By John Taylor, P.E., LEED AP BD+C As building hydronic systems increase in complexity, accurate measurement of fluid flow becomes more critical.  Condenser water systems are more likely than ever to include a water-side economizer that requires varying flow rates.  Variable-flow-primary chilled and heating water systems have continually fluctuating flow rates that must be accurately measured […]

Posted in All Insignts, Mechanical Engineering | Also tagged , , , , , | 4 Responses