— Inspection #17
regenerative thermal oxidizer
May 13, 2026, 8:26:10 PM · 16932ms · 6819 tokens · card #2
Overall severity
LOW— Summary
Overall exterior view of CleanSwitch RTO unit appears structurally intact with ladder, platform, ductwork, and control enclosure in place; however, technician reports intermittent rumbling from inlet ductwork during damper transitions and new light-tan dust accumulation, suggesting possible internal media degradation or duct/damper issue not visible externally.
— Recommended action
Schedule internal inspection of inlet ductwork, switching/tee dampers, and media beds; check damper actuator timing, seal integrity, and sample dust for ceramic fines.
— Observations (3)
NONE
Unit exterior, ductwork, access platform, ladder, and control enclosure are visually intact with no obvious corrosion, panel damage, or external leakage.
confidence 90%
LOW
Technician reports intermittent rumbling from inlet ductwork during damper transitions — symptom consistent with damper slamming, loose internal hardware, or ceramic media fines migration.
confidence 75%
LOW
New light-tan dust accumulation in inlet duct area reported by crew suggests possible ceramic media fines escaping bed or duct/seal leakage upstream of media.
confidence 70%
— Classification
- part
- main unit with ductwork and access platform
- type
- regenerative thermal oxidizer
- view
- exterior outdoor installation
- family
- air pollution control
- reason
- Large skid-mounted gray industrial enclosure with overhead exhaust ductwork, gas piping, and access ladder/platform branded 'CleanSwitch' is characteristic of an RTO (regenerative thermal oxidizer) installation.
- 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/1/405eabef-5316-4a9f-bb34-a93ec70030da-0004-eb9404a9f972743c.png
- model_version
- claude-opus-4-7
- prompt_template
- inspect-v2
- tokens (in/out)
- 5784 / 1035
- cache (creation/read)
- 0 / 0
- latency
- 16932 ms