Flux HVAC: Tech Calculator

STOP GUESSING. START MEASURING.

Flux HVAC is the modern, professional toolkit designed for the 2025 technician. We combined the essential tools into one lightning-fast app, helping you diagnose issues faster, charge systems accurately, and validate your work with confidence.

Whether you are on a scorching roof or in a crawl space with no signal, Flux HVAC works 100% offline.

KEY FEATURES:

1. PRECISION CHARGING
- Superheat Calculator: Accurate targets for non-TXV (fixed orifice/piston) systems.
- Subcooling Calculator: Precise liquid line verification for TXV systems.
- Visual Indicators: Clear color-coded sliders tell you exactly when your charge is optimized.
- Includes pre-loaded data for standard refrigerants (R-410A, R-22, etc.).

2. VISUAL DUCTULATOR (Duct Sizing)
- Forget the cardboard wheel. Calculate round and rectangular duct sizes in seconds.
- Interactive Visualizer: See the duct shape change as you adjust dimensions.
- Velocity Alerts: Automatic warnings for high FPM to prevent noisy systems.

3. SYSTEM PERFORMANCE (Capacity Check)
- Prove you fixed it. Enter Return and Supply air temps to calculate actual BTUs and Tons.
- Verify Delta T, Enthalpy change, and Sensible vs. Latent cooling capacity.
- The ultimate tool for "Verify & Bill."

4. PSYCHROMETRICS
- Instantly calculate Relative Humidity (RH%), Dew Point, and Enthalpy.
- Quickly diagnose humidity issues based on dry bulb and wet bulb readings.

5. CAPACITOR TEST (Under Load)
- Test capacitors without disconnecting wires.
- Input Volts and Amps to identify weak or failed capacitors before they damage the compressor.

WHY CHOOSE FLUX HVAC?
- Built for Speed: Large sliders and buttons designed for gloved hands.
- Offline First: No internet required for calculations.
- Visual Feedback: High-contrast interface designed for outdoor visibility.

Download Flux HVAC today and carry a master technician's toolkit in your pocket.