Charts by refrigerant
About these tables
Saturation temperatures in °F at gauge pressure (PSIG), sea level, every 10 PSI. Readings between rows are linearly interpolated, the same way FieldLoom does it on the job.
R-407C is a blend with about 10°F of temperature glide. These are mid-point values. For exact work, use dew point for superheat and bubble point for subcooling from the manufacturer's chart.
Questions
How do I read a P/T chart?
Find the gauge pressure in the PSIG column. The temperature next to it is the saturation temperature: the temperature where the refrigerant is boiling or condensing at that pressure.
What pressure is 40°F for R-410A?
About 119 PSIG. At 118 PSIG, R-410A saturates at about 39.5°F.
Are these pressures gauge or absolute?
Gauge pressure (PSIG) at sea level, the same as your manifold reads.