• Boilers and HVAC Building Automation Systems
  Source: http://knol.google.com/k/julian-arhire/boilers-and-hvac-building-automation/2p0090difr5q/3# With the newest state-of-the-art sensors, direct digital controls and computer driven expert systems, buildings now can be completely automated and remotely controlled. This article will review what such systems and their operators can and cannot do, what new risks can be created for the boilers in such buildings, and how to reduce and control those risks. Benefits of automation Intelligent buildings today use a building automation system (BAS) and other systems to operate HVAC, boilers, chillers, lights, elevators, building access fire protection and other systems to achieve the twin goals of efficiency and comfort. A BAS is defined here as a system of sen
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• What Are The Rooftop HVAC Units?
  When rooftop units were first introduced some 40 years ago, they were considered by system designers and building owners to be a bare bones, low cost, simple solution to low-rise building HVAC needs. Low cost was the primary driving force for both manufacturers and users. But while they were popular with designers and owners, many maintenance managers considered them nightmares: difficult to service, prone to breakdowns, inadequately protected from the elements. Today, everything has changed. Gone is the concept of one size fits all. Buyers have more options, including practically all of the same features found in other types of building HVAC systems, from economizers for energy conservation and prewired interfaces for building automation systems to heat w
  in Public bookmarks with airflow automation building conservation controls cooling economizers energy heat heating hvac recovery rooftop single-zone systems thermostats units vav

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