— Inspection #25
regenerative thermal oxidizer
May 13, 2026, 8:54:20 PM · 16687ms · 6770 tokens · card #2
Overall severity
LOW— Summary
Overall exterior view of CleanSwitch RTO appears structurally intact, but technician reports an audible rumble during damper switchovers and new fine tan dust accumulation at the lower duct flange — suggesting possible internal media degradation with particulate carryover into the ductwork.
— Recommended action
Schedule internal inspection of media beds and damper internals; check lower duct flange gasket and bolting; sample dust to confirm ceramic origin.
— Observations (3)
NONE
Unit exterior, ladder, platform, control enclosure, and ductwork are visually intact with no obvious corrosion or panel damage.
confidence 90%
LOW
Technician-reported rumble from inlet ductwork during damper switchovers is consistent with damper actuation issues or loosened/shifted ceramic media causing pressure pulsations.
confidence 70%
LOW
New fine light-tan dust accumulation at the lower duct flange (not present six months ago) suggests ceramic media dusting/attrition or a developing flange leak carrying particulate.
confidence 75%
— Classification
- part
- main unit with ductwork and access platform
- type
- regenerative thermal oxidizer
- view
- exterior side view
- family
- air pollution control
- reason
- Large skid-mounted gray enclosure with overhead exhaust ducting, gas piping, access ladder/platform, and 'CleanSwitch' branding typical of a regenerative thermal oxidizer (RTO) for VOC abatement.
- 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/1/6e0da293-40f7-44fe-b5bc-7d8951799c6a-0004-eb9404a9f972743c.png
- model_version
- claude-opus-4-7
- prompt_template
- inspect-v2
- tokens (in/out)
- 5789 / 981
- cache (creation/read)
- 0 / 0
- latency
- 16687 ms