HVAC school demonstrates how to calculate target superheat for fixed orifice metering device AC systems using testo Smart Probes and then how to measure superheat. Featuring Bryan Orr.
Testo: https://www.testo.com/en/
Read all the tech tips, take the quizzes
and find our handy calculators at https://www.hvacrschool.com/
Testo: https://www.testo.com/en/
Read all the tech tips, take the quizzes
and find our handy calculators at https://www.hvacrschool.com/
So I want to demonstrate quickly how to use the target superheat application within the test to smart probes. That's a really neat application for helping you set in your super heat on a piston or fixed orifice air conditioning system. You choose the target, superheat application and there's a couple things that we need to enter in manually and we have to enter our outdoor dry bulb temperature and our return air wet, bulb temperature. What I've done is I've gone into basic view with the 605.
I need to check out the indoor wet bulb temperature, which is sixty two point four and enter that into the application. That's what we're measuring is sixty two point: four wet bulb. So then we go back to target superheat. We go to our configure measurement and we type in our return on our wet bulb, which is sixty two point.
Four we need to go outside and get our outdoor dry bulb temperature in order to calculate our target superheat, but we're gon na do that. At the same time as connecting our pressure probes and our temperature probes, I'm gon na go ahead and turn on the 905. I to measure our dry bulb temperature. Now you can see here that our outdoor temperature is 87 degrees.
Fahrenheit dry bulb. Eighty seven point one and then we go back to target superheat and we were already really close, so we're gon na type in eighty seven point one now we're ready to go ahead and connect you now, as you can see, we have our line thermometers connected. We have our two pressure probes connected and we have an actual measure superheat of ten point: seven with a target superheat of seven point: seven, twelve point, six degrees, sup cool or three degrees off on our superheat, but that's actually within range. We're actually functioning as designed.
This video has been about target superheat for the test. Oh smart probes, thanks for watching.
why cant it auto fill in… the purpose of going digital was to make less mistakes..