How to read a Bryant serial number
Modern serials commonly begin with two digits for week and two digits for year (WWYY). SerialAtlas removes spacing and punctuation, then applies only the documented rule families mapped to Bryant. The lookup remains in the browser.
Equipment covered
- air conditioners
- heat pumps
- furnaces
- air handlers
- packaged systems
Commercial, imported, very old, specialty, and private-label equipment can use a different code. Confirm the full rating plate before accepting a result.
Where to find the rating plate
- Outdoor condenser or heat-pump cabinet, usually near the service valves
- Inside the furnace or air-handler access panel
- On the packaged-unit rating plate
- Near the electrical disconnect or wiring diagram
Why more than one date can appear
Two-digit years and repeating letter cycles can point to more than one era. SerialAtlas ranks the plausible dates but keeps materially different alternatives visible. Label design, refrigerant, installation records, and product literature can resolve the era.
Inspector Handbook open reference data (CC BY 4.0). Independently implemented and reviewed August 8, 2026.
Open reference sourceWhat this result does not prove
A manufacture date is not an installation date, warranty decision, recall match, condition assessment, or replacement recommendation. Confirm high-stakes decisions with the manufacturer or a qualified professional.