Refrigerant Calculator
Calculate superheat and subcooling instantly
Why this tool matters
Solve the calculation or lookup now, then keep the answer attached to the installed base so it can support maintenance follow-up, warranty timing, equipment history, and replacement conversations later.
Next best step
Use the result in the field, then start a free AssureStep account when you want the context to stay visible after this visit.
Quick Reference
Target Superheat: 8-12°F for fixed orifice, 5-10°F for TXV
Target Subcooling: 10-15°F for most systems
Low Superheat: Possible overcharge or TXV issues
High Superheat: Possible undercharge or restriction
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