Maximize AC Efficiency The Definitive AC Pressure Table

24 votes, 49 comments. 2013 Nissan Altima, 4 cylinder. First pic is with the engine off, 2nd pic is with the engine and compressor on. For example I see charts that show, at 90 degrees, a low side of approx. 30 psi and high side of 225. Another chart will show 50 PSI and 260 PSI ... 3G TL (2004-2008) - A/C Refrigerant Pressure Chart for Acura - Does Acura have a specific R134a refrigerant pressure chart or are the ... Does anyone know where I can find a chart for HIGH & LOW pressure side readings Vs ambient temp. Having trouble with my AC not putting out real ... A/c pressure. The R134A Pressure Temperature (PT) chart shows the pressure of R134A refrigerant at different temperatures, ranging from -49°F to 150 ... Â At least twenty-five PSI of static pressure is required, or the cycle switch may disable the compressor. What is normal automotive air conditioner pressure? I would like to see a little higher on both the high and low readings. I would be adding more refrigerant and tweak it to @ High side 175psi and low side ... Check in Heating and Air Conditioning page 24-4; there is a chart for A/C Performance Temperature and Pressure which will provide you the info you are looking ... ... A/C system. Thanks for you help with my issue. I recharged the system using the Pressure chart you provided and the system is cooling well ... This document provides a temperature-pressure chart for R-134a that lists the expected gauge pressures at the low and high-pressure ports of an air ...