How matching works
Identity first, then evidence. BecSpec does not turn a similar model number into a replacement claim.
1. Resolve the exact equipment identity
The checker starts from the brand and model recorded by the Clean Energy Regulator. Normalisation fixes spacing and punctuation for search, but does not fuzzy-merge different products. Where the same model code occurs under more than one brand, those identities remain separate.
2. Attach dated status observations
CER eligibility, Solar Victoria listing, manufacturer evidence and safety recalls are separate facts. One does not imply another. A CER-listed model is not automatically a current retail product, and a state-program listing is not federal eligibility.
3. Add exact-model technical evidence
Dimensions, electrical demand, water connections, operating range and other specifications are attached only when the evidence identifies that exact brand and model. Facts are not inherited from a neighbouring model or another brand using the same code.
4. Grade possible replacement relationships
A candidate can only become stronger as positive evidence closes the checks that matter for the installation. The evidence vocabulary distinguishes OEM-declared successor, verified same platform or rebadge, strong functional candidate, possible candidate and insufficient evidence.
Possible candidate means the evidence has narrowed the replacement search but material installation checks remain. It does not mean drop-in compatible.
5. Show what still needs verification
The result names unresolved checks such as height, footprint, connection positions, circuit demand, clearances or condensate routing. Physical installation suitability stays unresolved unless the evidence genuinely proves it.