— Inspection #24
regenerative thermal oxidizer
May 13, 2026, 8:53:18 PM · 17300ms · 6712 tokens · card #2
Overall severity
LOW— Summary
Overall exterior view of CleanSwitch RTO appears intact with no visible structural damage, corrosion, or leaks; however, technician reports audible rumble from inlet ductwork during damper switchovers, warranting follow-up investigation.
— Recommended action
Investigate inlet duct rumble during switchovers: inspect damper actuator timing, blade seals, and internal vanes; check duct supports for resonance.
— Observations (3)
NONE
Unit exterior, ductwork, access platform, ladder, and control enclosure are visible and structurally intact with no visible corrosion or panel damage.
confidence 90%
LOW
Inlet ductwork visible at upper left/elevated run; technician reports audible rumble during damper switchovers, suggesting possible damper slap, loose internal vane, transient pressure pulsation, or duct panel oil-canning.
confidence 60%
LOW
Switching/tee damper area on the unit body not externally damaged, but is the likely source of the reported switchover noise.
confidence 55%
— Classification
- part
- main unit with ductwork and access platform
- type
- regenerative thermal oxidizer
- view
- exterior side view
- family
- air pollution control
- reason
- Large gray rectangular skid-mounted unit with overhead exhaust ducting, gas piping, access ladder/platform and 'CleanSwitch' label is consistent with an RTO installed outside a facility.
- source
- context
- confidence
- 0.78
- taxonomy_type_id
- null
- taxonomy_family_id
- null
— Retrieved examples
#1972#1797#1985#1732#1987
Top-K examples from the knowledge corpus used as visual context for this inspection.
— Metadata
- image_uri
- s3://luthier-assets/inspections/1/baf4e021-49a2-46a8-9728-e03f829a9759-0004-eb9404a9f972743c.png
- model_version
- claude-opus-4-7
- prompt_template
- inspect-v2
- tokens (in/out)
- 5743 / 969
- cache (creation/read)
- 0 / 0
- latency
- 17300 ms