HVAC Basics: Service & Troubleshoot - How to Measure Superheat & Sub Cooling on a AC System

This video will show you how and where to measure the temperature on a R-410A Split System for calculating superheat and sub cooling measurements. You can apply the same principles to other refrigerants R-22, R-134A, R-12.

[NETWizzJbirk]

Great Video. When you take refrigerant out, the SubCooling actually goes down though admittedly you are charging that fixed metering-device system via SuperHeat.

[treyfranklin]

Very intelligent, I understand your videos.They help me a lot.

[craigcammarata]

Can you do a video explaining subcooling and superheat in detail? Love these videos, they have helped me immensely in my field of facilities management

[davejohnsonnola]

What was the issue with the low loss yellow hose to the recovery tank.

Unable to purge line?

[thxylivx]

So typically, out In the field, would you get the dry and wet bulb temps? I assume because this is a class room you just tried to teach the basics of superheat and subcool.

[treyfranklin]

Also, with a system doing this, what would be some symptoms to look for?

[luisromero]

Good teacher. If you could speak a little slower would be fantastic. Thanks.

[mikeyable]

I’m fresh on this but why did he put the yellow hose to the vapor blue valve on the tank ? When he open the high side of the gauge that I thought it was liquid ?
I thought the high side coming out of condenser to evaporator should be liquid and to recover liquid, I thought it should be connected to the red high side valve on the tank ?
Can someone please explain this to me ?
Im really trying my best to understand how an air conditioning works. Thank you

[joelmelendez]

What numbers are normal for super heat and subcooling .??

[whitesheatingairappliancer]

Did you use a scale to weigh what refrigerant you took out? Great video thank you.

[texture]

Purge the recovery cyclinder to remove any air going into cyclinder and the superheat T1 is connected passed the schrader valve which will restrict refrigerant and there should be a temperature difference.