Master AC Pressure Diagnostics with Our Expert Table

If no chart is provided, use the A/C pressure chart below this list as a general guide. Also, different AC systems can have different recommended pressures, so ... 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? 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. The Pressure/Temperature Chart indicates the pressure and temperature relationship for three automotive refrigerants. ... When all else fails, have an A/C ... Compute the superheat by determining saturated suction temperature from Temperature Pressure Chart. Subtract from actual suction line temperature before ... Most technicians in the HVAC field know the normal range of operation for the low-pressure side of an air conditioning system. This is a quote from the AC gurus: "The low-side should be near 30 PSI at 90 degrees Fahrenheit or less. Pressure that is too much ... This chart shows the pressure/temp relationship for R-12 and R-134a. Look up the ambient temp and it will show you the pressure you'll see in the system. Note ... I am looking for a service manual chart for my 2007 double cab. The chart that shows ambient temp, humidity, temp at vent, and line pressures. The AC Pressure Chart for R134a is a useful guide. It gives you typical pressure values for both the high and low sides at different temperatures.