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GAUGEIQ
FREE TOOL · TRADIEROLES.COM
Superheat
Saturation temp— °C
Absolute pressure— kPa
Target band

Reading

Superheat uses the dew point; subcooling uses the bubble point — glide refrigerants (R407C, R404A) are handled correctly. Saturation data are typical published values — cross-check against your PT chart or manufacturer data. Target bands are typical for TX-valve systems; set to the equipment manufacturer's specification.

Result

Low superheat risks liquid flood-back to the compressor; high superheat means a starved evaporator or load issue. Low subcooling suggests undercharge or restriction upstream of the liquid line; high subcooling suggests overcharge or condenser issues — always diagnose in context, one number never tells the whole story.