Superheat: HVAC Charge Calc
iOS app by Yoshifumi Sato. Utilities · Yoshifumi Sato
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- 4.99 USD
- In-app purchases
- Unknown
- Version
- 1.0
- Listing last refreshed
- 2026-09-08
View the original store listing
Store description excerpt
Superheat is a fast, accurate charging and diagnostic calculator for HVAC/R technicians. Pick a refrigerant, enter the low-side and high-side gauge pressures and the line temperatures, and get: - Saturation temperature (dew and bubble points) - Superheat on the low side - Subcooling on the high side - Glide shown correctly for zeotropic blends REFRIGERANTS R-410A, R-454B, R-32, R-22, R-134a, R-404A, R-407C, R-407F, R-448A, R-449A, R-452B, R-513A, R-507A, R-290, R-600a, R-717 (ammonia), R-1234yf, R-1234ze(E), R-12. BUILT FOR THE FIELD - Pressure in psi, kPa, bar or MPa; gauge or absolute - Temperature in Fahrenheit or Celsius - Altitude compensation with adjustable atmospheric pressure - PT chart browser with pressure to saturation-temperature lookup - Target superheat estimate for fixed-orifice systems - Save readings per unit and review them later - Works fully offline. No account, no ads, no tracking ACCURACY Saturation pressure-temperature data is precomputed with CoolProp (Helmholtz equations of state). Zeotropic blends use separate bubble and dew curves derived from their component compositions, so glide is handled correctly. For qualified HVAC/R technicians. Always follow the equipment and refrigerant manufacturer charging specifications.
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