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Chris HVAC/R Evacuation Quiz August 10, 2021, 12:51 am
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Calculate Recovery Tank Fill the Easy Way
Recovering refrigerant sounds like an easy task at first, especially with digital recovery machines and large hoses at our disposal. Unfortunately, we all know that filling the tanks is more complicated than it seems. If you want to recover refrigerant and store it in a tank safely, you’re going to have to do some math. […]Read more
Do You Need to Be Recovering Into a Vacuum?
This topic came up because I was testing out the new MR45 digital recovery machine. That machine goes off by itself when it hits a 20″ Hg vacuum. It's a cool feature, but it is good to know when that level of vacuum is overkill and when it's not enough according to EPA requirements. You […]Read more
HVAC Fire Safety Systems in Restaurants
This article was written by Christopher Stephens. He is a commercial HVAC/R service manager in the greater Los Angeles area. Thanks, Chris. Let’s start by covering the three elements needed for a fire: fuel, air, and heat (spark). With those three elements in the right condition, you can start a fire. So, if we reduce […]Read more