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HVAC Resources for Professionals  
  
 
 
 
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Welcome

 

This site is a collection of tools and information to assist in the design, installation, and service of HVAC systems. Select from the menu on the left.

Psychrometric calculations and duct sizing parameters are from the ASHRAE Handbooks and ACCA Manuals. Building the Calculators has given me a better understanding of airflow, duct design and psychrometrics. I encourage you to experiment with them to see how one thing affects another.

Of the many charging charts, the ones that allow for different indoor wet bulb conditions are the most accurate for fixed orifice systems. On the Charts page I've consolidated charging information that can be used with any comfort cooling refrigerant system.

The Literature page has some of the documents I've collected from the web and a link to their source for more.

I will update and add content when I can. This site is being built as a free educational resource to promote excellence in HVAC practices.

 

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