2017

In this live video Bryan talks about Flowing Nitrogen Reasons techs give not to flow nitrogen Reasons that some cases create more carbon than others Demonstration video by Tim Bagnall

In this video Bryan talks about Refrigerant Blends The reasons for retrofit The drop-in fallacy Oil types Oil Miscibility Temperature Glide Capacity change Refrigerants to consider R427A R438A R422D R407C & A Helpful Links Choosing the right retrofit (EPA) Honeywell Retrofit Guidelines Retrofit with R438a by “The Professor”

The price of R22 is getting ridiculous, and one of the #1 requests I have been getting is for recommendations on other refrigerants to use in place of R22 and best practices, so here we go. No, you shouldn't mix There are NO refrigerants that you are supposed to use to top off an R22 […]

In this episode of the HVAC School Podcast we talk about – – Carrier's bypass economizer  – Hard Start Kits – StayBrite #8  – Discharge Line Temperature – Coremax Valve Cores – Notched Belts – Motor Temperature ratings  and much more……

Jeremy Smith talks Motormaster valves, fan cycling, slit condenser charging and much more…  Read the companion tech tip here

A quick story about how two brothers fueled and industry and an empire with raw sibling rivalry. 

Imagine, if you will, a 20-year-old kid. He has no formal training in the HVAC/R field, only ride along “training” and book learning as he reads along with his journeyman father with whom he's riding. One stormy summer evening, a service call comes in for an ice cream freezer down. After calling and talking to […]

I was walking around at the AHR conference today, and I stopped at the booth of a popular hard start kit manufacturer (especially popular with white-shirt sales techs). I listened to the guy behind the booth “training” some municipal maintenance techs on the use of his hard start kit. (To be fair, I actually think […]

Please note: There have been some legitimate questions about a few of the points in this article and the diagrams. While Justin Skinner is an experienced tech and totally qualified to write this article, we will be specifically looking into the question of the best location of the circulator pump and addressing the “point of […]