August 27, 2026 — Air Flow live grid (rework steps 1–3 of 4)
Path: ?v=24. Fan Laws merge is step 4 (not this ship).
Rework shipped
- Step 1: Sensible live I/O (no last-two-only on BTU/CFM/ΔT; no mode dropdown).
- Step 2: Pressure on the same page; one CFM / L/s pair.
- Step 3: Temp Split on the same grid (RA DB, SA DB, RA WB, shared ΔT).
- Stepper is Air Flow · Fan Laws. Formulas live in Help, not on the tool.
Live-sync fixes (same day)
- Numpad C clears the focused field and does not refill it from the other cores.
- Changing ΔT keeps RA and fills SA = RA − ΔT (°F). Example: RA 70, ΔT 34.7 °F → SA 35.3. Type SA to assume supply is true.
- Leftover negative SA (e.g. −27.7 from an earlier pass or saved session) is ignored; CLR STEP also clears the aircalc work-session slice.
- Local preview: localhost unregisters leftover service workers on every PWA page (not only the menu). Title Air Flow · local. Home-screen HVAC Lens stays live until push.
Help
- Temp Split: RA sticky on ΔT edit, 70 / 34.7 °F example, ΔT °C vs °F, pad C, CLR STEP.
- Sensible: pad C. Fan Laws: CFM/L/s toggle is step 2 only.
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