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JBoy1954
Jul 29, 2012, 11:54 AM
What should low gauge and high gauge pressures be for R22 with 92 degrees F at 52 percent rel. humidity Houston, Tx..?

hvac1000
Jul 29, 2012, 01:50 PM
What should low guage and high guage pressures be for R22 with 92 degrees F at 52 percent rel. humidity Houston, Tx..???

Use the standard Temperature/Pressure Chart like we all have to do. It takes all the guess work out of it.available on Google I think.

MrAir
Jul 29, 2012, 05:06 PM
Jboy you need to add more data to your question. What is the temp in the house? What is your Temp drop across the evaporator? How old is your system? Evaporator age? Air Flow good?
With that you can get close to what YOUR system should be. I say Your system because if it is older (R22) you will NOT get perfect numbers. So you want to get as best as possible. I know new fixes all problems but you can make what you have do its best. But it will not get the numbers that a new unit (and the book) shows many times.