Quote:
Originally Posted by derkpitt
No. This is a static pressure test only.
The cheap N2 gas is only used to detect if leaks are present before servicing with the high dollar freon charge.
With the bottle pressure near 2000pis a regulator is used to decrease the pressure to only what is needed to assure the sys can hold a static pressure.
If the sys will hold pressure at 175-200pis then it will easily hold a vacuum.
Also the N2 is a inert gas without any moisture, which is good for purging air out of the sys with.
|
I think I get the theory but can you be more specific on this for us DIY guys?
What kind of regulator? Source pics costs? How is it attached? Normal Mastercool gauge set??? What is the "Bottle of N2"? Cost sources.....
R134a only costs $5.50/can around here and if the syatem will hold a 20-30micron vacuum overnite, I'm trying to undestand what exactly it is that you are proposing that is better or cheaper for DIY guys.........
Maybe need a new thread.......
"How to leak check A/C with nitrogen for the home DIY???????????""
