David Dickun Basic Refrigerant Circuit Course October 26, 2021, 9:33 pm

Related Tech Tips

Pool Heater Water Flow Issues
When you first start servicing pool heaters, the water flow circuit can feel a bit intimidating. In this article, I'm going to cover the pool circuit basics and common water flow issues that screw up our heaters. If you would like to brush up on the basics of pool heaters before diving into troubleshooting tactics, […]
Read more
6 Ways to Make a Tough Decision
I wrote this years ago, but now this feels like a season of tough decisions. I hope this helps. When you run a small business, you are called upon to make hundreds of decisions, both large and small, but sometimes, there comes a tough decision you REALLY don’t want to make. It’s times like these […]
Read more
20° ΔT (Delta T), A Lazy Rule of Thumb
  What should the delta T (ΔT) be? What do you mean!? 20 degrees, of course! We are referring to the air temperature drop across an air handling unit or evaporator coil in cooling mode. Actually, depending on who you ask, the answer will range between 18-22 degrees Fahrenheit. Heck, I’ve heard some insist that […]
Read more

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from