AC Pressure Table The Key to AC Optimization

A/c 134a chart. What pressure should 134a run at. Temperature and pressure charts for various refrigerants are crucial in designing air conditioning systems ... 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 ... This was with the air on max setting fan blowing medium speed. Can anyone help me find the normal psi chart for our cars? I've searched and read ... Now the LP and HP gauge readings need to be considered. To determine failures, the gauges' indications must be referred to a table with R134a operating pressure ... AC Pressure Chart R-134a Temperature Pressure Chart - Free download as PDF File (.pdf), Text File (.txt) or read online for free. R134a Pressure Gauge Chart ; 85°, 50-55 psi, 220-250 psi ; 80°, 45-50 psi, 175-220 psi ; 75°, 40-45 psi, 150-175 psi ; 70°, 35-40 psi, 140-165 psi ; 65°, 25-35 psi ... The pressure inside the a/c system is a higher number in psi than the outside / ambient temperature number in Fahrenheit and it's above about 70F. So if I'm reading the manual correctly, the correct procedure to measure refrigerant pressure is to set AC to max cold, recirc, max fan ... emzone A/C Temperature/Pressure Chart. TEMPERATURE. R12 emzone 12a. 134a. Bubble. Dew. C. F psi psi psi psi. -40. -40. -5. -4. -7. -38. -36. -4. -3. Page 1. emzone A/C Temperature - Pressure Chart. TEMPERATURE. R12 emzone 12a. 134a. C. F psi psi psi. -40. -40. -5. -4. -7. -38. -36. -4. -3. -6.