2019

This quick article was written by market refrigeration tech Clayton Peeples. Thanks, Clayton! Adjusting the TXV should be done last after checking all other causes of the case being warm or floodback on the rack. TXVs very rarely go bad; generally, it's a dirty screen or a failed powerhead, both of which can be addressed […]

In this service manual talk through episode we discuss the Heatcraft Beacon 2 refrigeration system and what it entails

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 […]

This episode covers the why and the how of low ambient cooling and refrigeration

I talk to John Oaks about his experience as a VRF tech in the field including branch boxes and two pipe vs. three pipe technology

This is a voice over audio presentation of the article of the same title on the HVACRschool.com website

This is a business article I wrote several years ago. No hard-hitting tech tips, but I still hope you find it beneficial. “What would you do if you had a time machine.?” It’s a question that came up at least 17 times in your first week of 6th grade, answered with the typical “kill Hitler” […]

Jason Obrzut come on and talks us through his furnace sequence of operation training  Take It Slow, It's Gonna Blow

We talk through stack effect. What it is and what issues it causes.