3-level Freon pressure switch AC ? bar vs psi .

[JOHNPAUL]

My AC crapped out after the car sat for a couple of weeks waiting on the top repair . The dealer cant fit me in and I'm having a hard time finding R-12 friendly shops !
I've found this guy that has r-12 and can vacume and pressure check the car but This guys never wrenched a P-car ,
Maybe you guys can help me out so I dont blow the hoses of my car .

Mean effective pressure 17.5 BAR ; Does this switch stay closed at any pressure over 17.5 BAR ?

High/Low pressure 25/27 BAR ; Does this switch stay closed only within that reading ?

Is there anything I need to know , other than I shouldn't be letting this guy work on my car , ?

Is there a way to convert psi to bar / or bar to psi ?

[Jens Wendorff]

1 bar = 14,50377 PSI or
1PSI = 0.0689476 bar

(only beancounting)

I have a pretty smart conversion program for metric <-> imperial on my windows-desktop. Give me an e-mail if interested (Freeware, 570KB).

Jens

[Joeaksa]

John,

Only thing I know that is different about the 911 is that when the person is working on your car, if the motor is running and the compressor engaged, the motor hood (if the the condensor is on the motor hood) must be in the down position.

I have heard many times (have not tested this!) that if you leave the hood up, it will cause high pressures and will blow one of three things, the condensor, HP hose to the condensor or compressor seals. Also, with the hood down you should have some airflow through the condensor, which is needed for proper A/C operation.

Run the motor with the hoses attached and the hood lying down and any good A/C person should be able to work with the system. A local shop did mine just fine.

Joe