Quote:
Originally posted by brody
Thanks to all the repliers. I am now a very informed consumer I think. I do have a question about the R410 coolant. I have heard it has to be used with twice the amount of PSI's than R22. If this is true, have they redesigned all the coils to handle the increased pressure?
Brody
Let's take A/C operating temps of 45 degrees evaporating and 130 degrees condensing. With R22 pressures would run 76/297 and with R410A it would be 130/476. So if "doubling" is the standard, you'd end up with a little over double in suction pressure (152) and less than double in head pressure. A full 118 psi less.