Enjoy the 523 Wink, I LOVE my Testo RSA's. I have the 556-1 and 560-1. You are going to really see what you have been missing all this time; I know mine really opened my eyes to what I was missing in the refrigerant diagnostic side of it. The 523 will also show Subcooling, just move the probe to the liquid line and use the buttons to move to Tsc, it will show under the High Pressure read out.
Enjoy the 523 Wink, I LOVE my Testo RSA's. I have the 556-1 and 560-1. You are going to really see what you have been missing all this time; I know mine really opened my eyes to what I was missing in the refrigerant diagnostic side of it. The 523 will also show Subcooling, just move the probe to the liquid line and use the buttons to move to Tsc, it will show under the High Pressure read out.
Sweet!
HVACRat 2 years ago