Intry Verified receipt

Is the Intry HVAC Serial Number Lookup accurate?

The provenance receipt for the Intry HVAC Serial Number Lookup: the exact authority its values derive from, the edition they are keyed to, who has final say, and what our automated checks hold them against, rebuilt from their cited source.

Short answer: Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 27820 automated checks re-derive and source-check the numbers against the manufacturer serial-number date code it was decoded from before each deploy. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.

The receipt

Calculated from
What each date-code scheme rests on · How the decoder is checked against dated serials · The documents behind those checks, named · Carrier family and the ICP reversal · Trane, Goodman, Lennox, Allied, Rheem, York date codes · Ambiguous and non-encoded formats · Refrigerant era and warranty context by year · The secondary references these rules are compiled from. Reused verbatim from the locked engine, never re-written for this page.
Checked
Before any release, an automated check rebuilds the calculated figures from the locked engine that produces them and holds each one against the source it cites, so a number answers to its source and not merely to itself. As of the current build that suite holds 27820 checks, and this page has to clear them too. This is our own deterministic gate, not a third-party audit.
Runnable
A reference engine behind the published numbers on this site. Runnable access is offered on the calculators exposed at the Intry MCP endpoint.
Final say
The date printed or stamped on the data plate (the MFG DATE field, where present) has final say, and the nameplate refrigerant governs over any year-based era mapping.

Frequently Asked Questions

Is the Intry HVAC Serial Number Lookup accurate?

Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 27820 automated checks re-derive and source-check the numbers against the manufacturer serial-number date code it was decoded from before each deploy. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.


Use it