Articles by Paul Ehrlich, P.E.

The Importance Of Doing BAS Right

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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In the big picture, good enough isn’t good enough.
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Where Is The BAS Industry Going?

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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There have been dramatic changes to the building controls market over the last 20 to 30 years. The “energy crisis” of the 1970s (along with the development of the microprocessor) sent the “Big 5” dominated pneumatics market into an energy management system (EMS) orbit that was joined by several dozen other manufacturers by the mid-1980s.
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EVERYTHING GETS OLD: Dealing With Obsolescence

Updated or outmoded? It’s easy to slip from one to the other.
By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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Many of the systems that go into a commercial building are anticipated to have a long lifetime. We expect building materials such as structural steel or concrete to last for the life of the building.
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Building Automation - Part 2: VFDS AND BAS

Application, integration, and what your drive can tell you.
By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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Last month, we started this series on the use of VFDs as part of a control system. We talked about the many benefits and some recommended cautions in applying the use of this technology.
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Building Automation: Part 1: Proper Selection Of VFDS And BAS

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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Let drives steer you toward better performance, with these caveats.
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Building Automation: How Far WE'VE COME

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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We can only afford our present complaints thanks to our previous achievements.
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Building Automation: Integration: Myths, Lies, and Misconception

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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From design to setup to reporting, bad habits and bad thinking may loom at every turn.
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Building Automation: BAS Usability

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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Putting some thought into a graphic strategy can keep your interface from getting ugly.
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Building Automation: Divisions Of Labor

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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Can specifications lead the advancement of systems integration?
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Building Automation: Set It And Forget It?

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.
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With so many potential circumstances requiring attention, the chance of that scenario is, “Forget it.”
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Check out the August 2014 issue of Engineered Systems, with features on UFAD systems, cloud services, and much more!

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