Using a low pressure control to control box temp
Using a low pressure control to control box temp, this was a service call on a Delfield reach in that…
Are refrigerant additives ok?
The HVAC chemist John Pastorello discusses acid inhibitors, oil enhancers, dyes and leak sealant. He shares his knowledge and some…
How does a transformer work?
HVAC school covers the basics of how a transformer works. We cut one open and look inside a typical HVAC…
How to braze copper to steel
Brazing copper to steel is actually pretty easy. If this video we show you how to do just that using…
Hvacr videos drive time talk 10/1/18
Hvacr Videos Drive time talk about pump down refrigeration systems, and answering viewer comments. For Optimizing my videos I use…
Short 22 – mineral & poe oil
Mineral and POE oils are very different and have advantages and disadvantages. In this short podcast we cover the basics.…
Short 24 – hard vs. soft copper
Many technicians use hard or soft copper without thinking about which application is best for which. HVAC podcast is back…