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.
The receipt
- Calculated from
- What each date-code scheme rests on · How the decoder is checked against dated serials · The documents behind those checks · 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 federal rules the refrigerant lines cite · Two York documents that bound a York serial's date · The manufacturer documents that identify these models · The warranty certificates the warranty lines rest on · The gas furnace warranty certificates the furnace lines rest on · Which of these documents also date furnaces · U.S. Consumer Product Safety Commission recall notices (the recall lines) · The secondary references these rules are compiled from. Reused verbatim from the locked engine, never re-written for this page. The documents it rests on are listed in the source receipt on the tool page.
- Edition
- not a code table
- Checked
- Before any release, an automated check runs the locked engine that produces these figures and holds its answers against values written from the source it cites, so a checked number answers to its source and not merely to itself. The check covers the cases someone wrote a check for, not every input the tool accepts: it tells you where a number comes from, and it is not a proof of every value. As of the current build that suite holds 31163 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?
It computes from the sources listed in the source receipt on its tool page, and our automated checks hold its answers against values written from those sources for the cases the checks cover, not for every input you can enter. 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. Every figure an Intry calculator computes comes from a locked source module, not hand-typed. 31163 automated checks, one suite for the whole site rather than a per-tool count, re-derive the numbers before each deploy from the tables this site transcribed from the serial-number date-code convention documented for that brand. This is our own deterministic gate, not a third-party audit. The per-tool receipt is public at https://www.intrysys.com/verified.