Arkansas HVACR NewsMagazine May 2019

S tate, National, Chapter News Tech News

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The coil temperature will drop approximately 1° for every degree the return temperature drops. So if the customer sets it down to 74° the saturation will now be 31° and the coil will freeze. Pretty basic stuff but very important if you don’t want to leave a problem for your customers. There are many things that can cause this (low airflow, restrictions, low refrigerant) but step #1 is having the wherewithal to catch it. Keep in mind that this is only once the system has run long enough to stabilize. Don’t start making changes until the system has run at least 10 minutes and leveled off. — Bryan Article was originally printed in HVAC School For Techs by Techs. Bryan Orr offers a daily article on a plethora of issues that are important to our industry. You can find him at https://hvacrschool.com/ Click on the logo to link to Bryan’s article in HVAC School.

Special Thanks to Spring 2019 Training Partners Northwest Arkansas Community College, Pulaski Technical College, ASU Mountain Home, East Arkansas Community College, Johnson Controls / Ft. Smith