A/c pressure conformation.

[mgbrv8]

Originally Posted by SoCalZR1

Hi Dave,

I am no expert but the pressure will also rely on the relative humidity, not just air temp. Looking at the performance specs in the shop manual these would be about right for R12 (so in the ball park) for 70% relative humidity at 100F and 2000 rpm. It states low side at 44 high side at 365 and vent temp at 75. Then again that's me working backwards and guessing your humidity. :-)

Mike

Im down here is the balmy southern tip of texas today was a sweaty 90% humidity. Im wondering if I could put a ounce or two more of r134 in there just to get a few more degs down at the vent.

Dave

[SoCalZR1]

Originally Posted by mgbrv8

Im down here is the balmy southern tip of texas today was a sweaty 90% humidity. Im wondering if I could put a ounce or two more of r134 in there just to get a few more degs down at the vent.

Dave

I am not so sure that would help Dave. At 80-90% humidity they don't even show anything for 100F. More is probably not better. I suspect you are doing good with 75f at that outside temp and humidity.

Again, no expert,but that is what the math seems to say. :-)

Mike