Troubleshooting AC Pressure Issues Like a Pro The AC Pressure Table

Most technicians in the HVAC field know the normal range of operation for the low-pressure side of an air conditioning system. -50. 10.4. 13.6. 7.3. 12.1. 8.4. 12.8. 7.1 11.7. -45. 8.2. 11.8. 4.6. 10.1. 6.0. 10.9. 4.5. 9.6. -40. 5.9. 9.7. 1.7. 8.0. 3.3. 8.7. 1.6. 7.3. -35. 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 ... I can't explain the voltage or current measurements. Does anyone have a volts-to-pressure chart for this sensor? I can't find one, but I suspect ... °F. °C. R-12. -40. -40.0. 11. -35. -37.2. 8.4. -30. -34.4. 5.5. -25. -31.7. 2.3. -20. -28.9. 0.6. -15. -26.1. 2.4. -10. -23.3. 4.5. -5. -20.6. We have an AC pressure troubleshooting chart that we follow to make sure all the parts and components are running smoothly. Your high side is variable depending on outside temperature, but it should be around 150ish psi, low side should be around 30 psi. Best way to ... 2. Use temperature-pressure chart to determine saturation temperature at observed suction pressure. 3. Measure suction gas temperature on the line at the ... Spec is 200-225 PSI on the high and 21-36 on the low. So the high pressure side is to low and the low pressure side is to high. WTF? Any ideas ... More to explore ; a table with numbers and times for the temperature. Understanding Normal AC Pressure Gauge Readings ...