HVAC Contamination Documentation Procedure
Field procedure for HVAC inspection and documentation on fire claims: system status, register and duct evidence, component photos, specialist reports, and partial-system scope diagrams.
Claims Ninja Operations
Purpose
Document HVAC system contamination before restart or cleaning — with component-level evidence and partial-system clarity — so duct, filter, coil, and equipment lines survive desk review.
When to use
HVAC system was running during or after the fire event
Signal: Homeowner reports system was on; registers show distant staining
Registers or returns show soot staining away from fire origin
Signal: Contrast between stained and unstained registers on same zone
Odor persists in rooms after surface cleaning
Signal: Technician notes odor at registers; ducts may still distribute particulate
Carrier estimate omits duct cleaning, filter, or coil lines
Signal: HVAC scope missing from first estimate despite visible register staining
Required documentation
System-off confirmation and restart deferral log
Air handler, coil, blower, and filter photos
Register and return staining photos by room
Accessible duct interior or plenum photos
Where access exists — flex runs, plenum openings, and insulation facing.
HVAC inspection report or specialist scope summary
Required when carrier program or loss size expects third-party inspection.
Partial-system diagram when only portions of duct layout are affected
Show included and excluded runs to avoid all-or-nothing desk denials.
Step-by-step process
- 1
Confirm system status and prevent redistribution
Field- Verify system is off and log who authorized status with date and time.
- Photograph thermostat setting and any homeowner instructions about restart.
- Note whether system ran post-fire before your inspection — affects contamination spread narrative.
- 2
Inspect and photograph components
Field- Photograph filter media, coil face, blower compartment, and equipment labels.
- Capture register and return staining in each room — include distant rooms from origin.
- Document accessible duct interior, plenum, and flex run condition where openings exist.
- 3
Correlate HVAC evidence with smoke migration
Field- Map which rooms show register staining versus clean registers on same system.
- Cross-reference smoke documentation guide room index for path alignment.
- Flag odor-at-register rooms for odor documentation guide follow-up.
- 4
Define partial-system scope when applicable
Project Manager- Diagram affected duct runs, zones, and components included in scope.
- Separate cleaning, replacement, and testing lines in estimate notes.
- Attach specialist report excerpts to component-specific line items.
All-or-nothing system claims without partial proof are frequent partial denials.
- 5
Maintain dedicated HVAC folder and queue supplement
Project Manager- Store HVAC photos in a subfolder separate from general smoke wipe images.
- Summarize findings in supplement cover letter with attachment names.
- Submit HVAC supplement when inspection is complete — not only at final invoice.
Quality gates
HVAC evidence in dedicated subfolder, not mixed with room smoke wipe photos
Register photos include rooms distant from fire origin when migration exists
HVAC lines separated from general structure cleaning in estimate
Specialist conclusions referenced by line number in cover letter
Common mistakes
| Mistake | Impact | Correction |
|---|---|---|
| Restarting HVAC before inspection photos are captured | Contamination spreads; inspection conclusions weaken. | Keep system off until component and register documentation is complete. |
| HVAC lines bundled with general smoke wipe without component photos | Among the most common partial denials on fire files. | Dedicated HVAC folder with equipment, duct, and register evidence. |
| Claiming full-system replacement without partial-system proof | Desk reviewers reduce to clean-only macros or deny entirely. | Diagram affected runs and attach inspection report for each component. |
| No correlation between register staining and room smoke documentation | HVAC scope appears disconnected from fire loss narrative. | Cross-link HVAC register photos to smoke migration room index. |
Restarting HVAC before inspection photos are captured
Impact: Contamination spreads; inspection conclusions weaken.
Correction: Keep system off until component and register documentation is complete.
HVAC lines bundled with general smoke wipe without component photos
Impact: Among the most common partial denials on fire files.
Correction: Dedicated HVAC folder with equipment, duct, and register evidence.
Claiming full-system replacement without partial-system proof
Impact: Desk reviewers reduce to clean-only macros or deny entirely.
Correction: Diagram affected runs and attach inspection report for each component.
No correlation between register staining and room smoke documentation
Impact: HVAC scope appears disconnected from fire loss narrative.
Correction: Cross-link HVAC register photos to smoke migration room index.
Supplement opportunities
Carrier estimate omits duct cleaning after documented register staining
Register photos, filter condition, and inspection report excerpts.
Line item hint: Duct cleaning, filter replacement, and coil service lines
Inspection documents component replacement after failed test cleaning
Close photos of charred or corroded components with report conclusion.
Line item hint: Blower, coil, duct section, or air handler replacement
Post-restoration testing and balancing required after remediation
Testing checklist or report excerpts — not only labor hours at invoice.
Line item hint: System testing, balancing, and verification lines
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