How I Add Refrigerant to an Air Conditioner

Hey HVAC techs! Since so many other YouTube techs show you how to add refrigerant to an air conditioning system, in this video I thought I'd show you how I add refrigerant to an AC.

I wanted to expand on our recent AC troubleshooting series by going into each part of its sequence of operations. This week, we're going to talk about how I add refrigerant to an A/C system. How do you get to the point where the air coming out of the registers isn't cold? You need to add Freon R-22 or Puron R410 refrigerant to your air conditioning system if the temperature difference between the return air and the supply air coming out of the registers is low. We want this temperature split to be between 18 and 22 degrees. Ideally, a 20-degree split would be perfect. But to get there you'll need to add refrigerant by using refrigerant gauges and a digital scale in order to put in the right amount.

Watch this video to get a better grasp on recharging your HVAC system and get your subcooling to the right level. Charge the 410a or r22 refrigerant the right way, and you won't be in the situation where your AC doesn't cool enough. Because if your air conditioner is not cooling, it can be tough to stay comfortable on a hot summer day. I hope you get something out of this video.

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00:00 Intro
0:57 32-degree saturation article
1:55 Get your temp split
2:10 Let's head outside
2:53 Talk temperatures, not pressures
3:53 What a good charge looks like
5:03 Using a scale is the right way
5:18 Getting the tank and hoses ready
6:21 Read to charge
7:38 Dialing in your subcool
9:03 Wrapping things up