Jonathan Boesch Refrigeration Basics Quiz September 20, 2021, 1:15 am

Comments

Related Tech Tips

Heat Doesn't Rise
We've all heard some version of the phrase “heat rises,” but is that really true? First, we need to remember that heat is energy, not matter. Heat is a force, not a thing. So, while heat may result in changes to matter (stuff), it isn't matter itself. When we add heat to stuff, the molecules […]
Read more
Heat Pump Defrost Boards and W2
If you are used to simple, straight-cool split systems, you know that the low voltage to the outdoor unit is usually VERY simple. In many cases, there's just a Y (contactor power) and a C (common) connected to the outdoor unit. When the condensing unit controls are strictly two-wire low voltage, there is no continuous […]
Read more
Ice Machine and Scale (Limescale)
This article was written by Austin Higgins, an experienced commercial service tech from Iowa. Thanks, Austin! Ice machines and limescale Any seasoned refrigeration technician knows that ice machines can be extremely finicky contraptions. Modern commercial ice makers have become a complex symphony of tubing, valves, pumps, and water directed by advanced microprocessor control boards. Newer […]
Read more
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