HVAC Refrigerant PT™
PT charts, superheat & subcooling, and data for 55 refrigerants — built for HVAC/R technicians.
HVAC
HVAC Refrigerant PT™ is the pressure–temperature reference built for working HVAC/R technicians and engineers: PT charts, superheat and subcooling calculations, and refrigerant data for 55 refrigerants — fast, accurate, and fully offline.
Zeotropic blends show bubble (liquid) and dew (vapor) pressures side by side on the same chart line, with temperature glide right where you need it — so you charge and troubleshoot with the correct value, not an average.
No account, no ads, no internet required at the job site.
Available for iOS (iPhone & iPad) and Android.
Features
PT charts & calculators
- Scroll or jump to any temperature and read saturation pressure instantly
- Bubble and dew pressures side by side for zeotropic blends, with temperature glide
- Superheat & subcooling: enter gauge pressure and line temperature for measured values in seconds
- Target superheat and a clear charge verdict for fixed-orifice systems, from indoor wet-bulb and outdoor dry-bulb
- Subcooling checks against the manufacturer's target for TXV/EEV systems
- Reverse saturation lookup converts any pressure to its bubble and dew temperatures
Refrigerant data & units
- 55 refrigerants — from legacy CFCs and HCFCs to today's low-GWP A2Ls (R-32, R-454B, R-1234yf) and naturals (R-290 propane, R-717 ammonia, R-744 CO₂)
- Every refrigerant includes classification, safety rating, cylinder color code, critical temperature and pressure, densities, GWP, common applications, and recommended lubricant
- Temperature in °F or °C; seven pressure units: psig, psia, kPa, inHg, atm, bara, barg
- Instant refrigerant search — works completely offline
- Clean dark interface, readable in a mechanical room or in full sun
- PT data verified against published reference sources
See it in action
Get HVAC Refrigerant PT™ today
Available for iOS (iPhone & iPad) and Android. Free technical support included.