We had a class with our refrigeration techs, and the topic of leaking and bypassing service “angle” valves and ball valves came up. One of the techs pointed out that most valves recommend loosening the top nut on ball valves and the packing nut on angle valves before turning the stem for maximum longevity of […]

In HVAC, you will hear the word “flux” used in two totally different parts of the trade. You may have heard of magnetic flux before. Magnetic flux is the lines of force that emanate from a magnet. You often hear about magnetic flux lines in discussions of motor theory. Transformers also use electromagnetic flux to […]

  As with most other trades, HVAC/R technicians need to have a solid set of hard skills to make it in the industry. Whether we pick up those hard skills by working on cars as teenagers, learning them in a trade school, or acquiring them on the job, we’ll have to rely on our hard […]