Air Conditioning, Best Practices, HVAC Service, Measurement, NCI Article Library, Technician Tips
The quest for higher efficiency cooling equipment is hitting a barrier. Unsuspecting installing contractors are being handed hidden liability that is difficult to identify and resolve. Certain cooling coils are being built for the highest possible SEER rating, but...
Air Conditioning, Airflow, Heating, Home and Building Performance, Measurement, NCI Article Library, Performance-Based HVAC, Testing and Balancing
How Does Air Balancing Save Energy? by Rob "Doc" Falke, President, NCI Air balancing is a relatively small specialty profession with less than 3,000 commercial supervisors certified by four major organizations. There are fewer than 7,000 residential balancing...
HVAC Service, NCI Article Library
A substantial amount of the work many of us do is based on a fixed price quote, taken from a predefined scope of work. Plan and spec work has, just as the name implies, a set of plans and specifications that we are bound by contract to follow. But what happens when...
Airflow, Diagnostic, Heating, NCI Article Library, Technician Tips, Testing and Balancing
Airflow is critical to proper heat transfer in heating and air conditioning systems. Most of us know the rule that temperature drop over a cooling coil should be 18 to 22 degrees. If the temperature drop increases, it is evidence that airflow is low. If the...
Best Practices, Measurement, NCI Article Library, Performance-Based HVAC
Honest Abe Wouldn't Guess: He'd Measure by David Holt The measure of a great country are the people who lead it. Each February, the United States of America celebrates the birth of our greatest -- the 16th President of the United States -- Abraham "Honest Abe" Lincoln...
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