Look up saturation pressure from temperature or temperature from pressure, with dew and bubble values for blends.
A pressure temperature chart links refrigerant pressure to its saturation temperature. Use the dew point for superheat and the bubble point for subcooling. A pipe temperature is not necessarily the saturation temperature, so measure pressure and line temperature separately. Values are reference approximations, not a substitute for the exact refrigerant manufacturer's chart.
Estimates based on your inputs. Always verify against the manufacturer's data and the codes that apply where you work.
Describe the symptom and your readings. Brixon helps you work through the free, quick checks first, then the deeper tests. It can be wrong, so confirm on the equipment.
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