Technical

CO Alarms, Effects of CO Poisoning, and Technician Certification

March 5, 2007
Techs interested in becoming certified in carbon monoxide (CO) testing not only need an understanding of combustion, but also low-level CO poisoning and what CO alarms do and don’t do.
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Airflow Testing and Certification

February 19, 2007
Here are methods for performing differential pressure measurement between two rooms or areas; airflow measurement for spray booths, laboratory hoods, and unit ventilators; and other measurements.
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How to Run a Condensate Zone Off a Steam Boiler

February 5, 2007
For those who install steam systems, this article presents some nagging questions and helpful answers
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Basics of Airflow

January 22, 2007
If you work in the HVAC industry, you are concerned with the process of conditioning air and moving air from one area to another. It makes sense that you need to know how air flows in ducts and what factors affect the flow.
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The Many Ways to Melt Snow

January 8, 2007
The act of melting snow is a fairly simple thing. Whether your heater of choice is hot water tubing or electrical elements, there are some basic details that are common to all successful snow melting systems.
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Cogeneration Cuts Apartment Building Energy Costs

December 25, 2006
Coppergate House is an apartment building, located in central New Jersey, where energy costs have nearly doubled over the last few years. American DG Energy has provided a cogeneration solution that is supplying an efficient source of heat, domestic hot water, and electricity.
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The Round Up on Spiral Duct

December 11, 2006
With energy costs going through the roof, HVAC system designers and specifiers are taking a much harder look at the many choices available in ductwork. One question that is being asked more and more is whether to choose rectangular or spiral duct.
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Magnetics, Heat, and Motor Efficiency

November 22, 2006
Motor efficiency remains one of the top issues in our industry, but when you talk about efficiency, often you're talking about trade-offs. The Motor Doctor explains all the factors involved.
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Math for the Technician: Using Shapes and Angles

November 13, 2006
A technician often has to sketch or design ductwork and other parts of an HVAC system. This means working with lines, angles, and other shapes. This article shows you how to draw and work with these different figures.
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Get Up to Speed on Motor Selection

October 23, 2006
Understanding guidelines for motor selection can help you make replacement decisions more quickly. When selecting a motor, the three primary factors to think about are performance, electrical, and mechanical considerations.
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2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.

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Kyle Gargaro, editor-in-chief of The NEWS, hosted the 2014 ACCA CEO Forum. At the event, six well-known, highly respected company executives, Gary Michel, Ingersoll Rand/Trane; Chris Nelson, Carrier Corp.; Chris Peel, Rheem Mfg. Co.; Rod Rushing, Johnson Controls; Brent Schroeder, Emerson Climate Technologies; and Doug Young, Lennox; provided individual industry outlooks and fielded questions directly from attending contractors. Listen to the entire event on the NEWSMakers podcast. Posted on April 14.

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