Not sure where to go from here

[bohica2xo]

Cusser:

You are so very right - a 30 lb tank of 134a with 3 ounces of refrigerant left in it is still 100 psi.

But there IS a clue in his statement. All of his ambient data indicates a max of 80f. So after sitting overnight his system should be no more than 80f... And 134a @ 80f should have a vapor pressure of 86.26 psi.


So what is driving the static system pressure to 100 psi?

.