Capacitor helper
Replacement size, parallel total and hard-start sizing.
More electrical calculators
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Use it on the job
The same calculators work offline in the HVACopedia app, with your favourites one tap away.
Calculation aids and reference figures for licensed technicians. Always follow the manufacturer’s data plate and manual for the exact model, and local codes. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Pressures are typical saturation values and change with load and airflow.