Built by a Red Seal Refrigeration Mechanic • Tools that keep up with the trade.
Free R-410A tool (Legacy–2030) — no account required; download PDF to your device. Help
Built by a Red Seal Refrigeration Mechanic for techs who need real numbers before they recover, replace, or walk away. Multi-refrigerant PT charts and NRE, electrical sizing (MCA, wire, voltage drop), load estimators, and field utilities.
Use the free R-410A diagnostic with no account. Sign up for the full members suite — 50 free during beta, and members also get HVAC Lens.
50 free during beta — member tools and HVAC Lens. After 50, signup closes until beta is finished.
HVAC Lens is a separate installable phone app — open hvaclens.ca.