August 3, 2026 — Units, work session, Stripe live, report polish
Path:
RefCalc unit toggles (°F/°C · PSIG/PSIA/kPa)
- Feature: All RefCalc inputs support temperature °F/°C and pressure PSIG / PSIA / kPa (gauge).
- Toggles on Setup step + Settings; filled values convert on switch; SH/SC/TD as deltas (no 32° offset).
- Internal calcs remain °F + PSIA. Module:
js/units.js, prefs in app-settings.js.
- Help:
help/refcalc-units.htm, Setup/Gauges index updates, main Help section.
Work session — one device file + Reload last session
- Single localStorage blob
phvac-work-session for RefCalc, Electrical, Air Flow, Heat Gain, Heat Loss.
- Save on step exit / page leave; merge only (prior steps not deleted on Next).
- New session starts blank; home shows Reload last session once when data exists.
- Module:
js/work-session.js. Help: help/work-session.htm.
Diagnostic PDF & Stripe (earlier same ship set)
- PDF: remove Pressure unit / Gauge input rows; larger fonts for mobile readability.
- Live Stripe Payment Link for HVAC Lens $5 buy (go-live link in
js/config.js).