Provide detailed identification information for the building and specific Air Handling Unit being inspected. Accurate metadata ensures traceability, proper benchmarking of performance data, and regulatory compliance documentation.
Building Name or Property Identifier
Complete Building Address
Property Type Classification
Pure Office Building
Mixed-Use (Office/Retail)
Office with Data Center
Medical Office Building
Government Office Building
Other Commercial Office
Total Floor Area Served by This AHU (in square meters)
Air Handling Unit (AHU) Unique Identifier or Asset Tag
AHU Manufacturer & Model Number
AHU Original Installation Date
AHU Design Capacity (in m³/h or CFM)
Specific Zones, Floors, or Tenant Spaces Served by This AHU
Overall AHU Operational Status Rating (1=Critical Issues, 5=Excellent)
Inspection Date & Time
Primary Inspector Full Name
Inspector Professional Certification or License Number
Outdoor Ambient Temperature at Time of Inspection (°C)
Outdoor Relative Humidity at Time of Inspection (%)
Outdoor Air Quality Index (AQI) at Time of Inspection
Date of Last Comprehensive Inspection for This AHU
Has this AHU undergone any major modifications, retrofits, or repairs since the last inspection?
Are there any currently known operational issues, alarms, or fault conditions with this AHU?
Upload AHU nameplate photograph showing model, serial number, and capacity
Record all critical performance measurements for airflow, thermal comfort, and indoor air quality parameters. All measurements must be taken at designated sampling points using calibrated instruments. Follow-up questions will appear if readings are outside acceptable threshold ranges.
Measured Supply Airflow Rate (in m³/h or CFM)
Measured Supply Airflow as Percentage of Design Capacity (%)
Is the measured supply airflow within ±10% of the design capacity?
Measured Return Airflow Rate (in m³/h or CFM)
Measured Outdoor Air Intake Rate (in m³/h or CFM)
Total Pressure Drop Across Filter Bank (in Pa or inches w.c.)
Is the filter pressure drop within the manufacturer's recommended operating limits?
Supply Air Static Pressure (in Pa or inches w.c.)
Supply Air Temperature (°C)
Return Air Temperature (°C)
Mixed Air Temperature (°C)
Supply Air Relative Humidity (%)
Average Space/Zone Temperature (°C)
Average Space/Zone Relative Humidity (%)
Are space temperature and humidity within acceptable comfort ranges (typically 20-24°C, 30-60% RH)?
Air Quality Parameters Compliance Assessment
Carbon Dioxide (CO2) concentration below 1000 ppm | |
Total Volatile Organic Compounds (TVOC) below 500 µg/m³ | |
Particulate Matter PM2.5 within WHO guidelines | |
Particulate Matter PM10 within WHO guidelines | |
Formaldehyde (HCHO) below 0.1 mg/m³ | |
Ozone (O3) within acceptable limits |
Carbon Dioxide (CO2) Concentration in ppm - Representative Sampling Point
Is the CO2 concentration below 1000 ppm indicating adequate ventilation?
Total Volatile Organic Compounds (TVOC) Concentration (µg/m³)
Is the TVOC concentration within acceptable limits (<500 µg/m³)?
Particulate Matter PM2.5 Concentration (µg/m³)
Particulate Matter PM10 Concentration (µg/m³)
Are PM2.5 and PM10 levels within WHO guideline values?
Formaldehyde (HCHO) Concentration (mg/m³)
Is formaldehyde concentration below 0.1 mg/m³?
Ozone (O3) Concentration (ppb)
Measurement Instrument Serial Number(s) and Model(s)
Last Calibration Date of Primary Measurement Instruments
Number of Sampling Points Used for IAQ Assessment
Description of Sampling Point Locations and Measurement Methodology
Upload photographs of measurement setup and sampling point locations
Document all filter conditions, replacement activities, and system cleaning operations. Include photographic evidence and detailed chemical usage records for compliance traceability and warranty purposes.
Filter Bank Condition Assessment & Replacement Schedule
Filter Location/Position in AHU | Filter Type/Construction | MERV Rating or Efficiency Class | Dimensions (mm or inches) | Installation Date | Visual Condition Rating (1=Poor/Damaged, 5=Excellent) | Measured Pressure Drop (Pa or inches w.c.) | Recommended Replacement Date | Replacement Completed During This Inspection | |
|---|---|---|---|---|---|---|---|---|---|
Pre-filter #1 - Supply side | Pleated synthetic media | MERV 8 | 600x600x50mm | 8/15/2024 | 180 | 2/15/2025 | |||
Secondary filter #1 - Main bank | Bag filter, deep pocket | MERV 13 | 600x600-6P | 9/1/2024 | 220 | 3/1/2025 | |||
Final filter #1 - Fine filtration | HEPA box filter | MERV 16 | 1220x610x150mm | 7/1/2024 | 150 | 7/1/2025 | |||
Pre-filter #2 - Return side | Pleated cotton-polyester | MERV 7 | 500x500x50mm | 10/10/2024 | 195 | 12/10/2024 | |||
Were any filters found to be damaged, improperly installed, showing signs of bypass, or loaded beyond capacity?
Upload photographs of filter condition (before and after replacement) showing frame seals and installation integrity
Summary of Filter Replacement Activities Performed During This Inspection
Was chemical cleaning of cooling coils, heating coils, or heat exchangers performed during this inspection?
Was condensate drain pan cleaning, flushing, and biocidal treatment performed?
Was ductwork cleaning, sanitation, or remediation performed in any zones served by this AHU?
Chemical Cleaning Agents Used During Maintenance
Chemical Product Name | Manufacturer | Active Ingredient(s) or Chemical Composition | Concentration or Dilution Used | Application Method & Contact Time | Safety Data Sheet (SDS) Reference Number | Rinse/Neutralization Verified Complete | |
|---|---|---|---|---|---|---|---|
Coil Cleaner Pro HD | HVAC Chemicals Ltd | Sodium hydroxide, surfactants, inhibitors | 5% aqueous solution | Low-pressure spray, 20 min contact | SDS-2024-CCP-01 | ||
Biocide Ultra Q | Sanitation Corp | Quaternary ammonium compound | 200 ppm active | Fogging system, 30 min exposure | SDS-2024-BU-02 | ||
Condensate Pan Tabs | HVAC Maintenance Co | Chlorine dioxide precursor | 1 tablet per 5L pan volume | Dissolved in pan water | SDS-2024-CPT-03 | ||
Were all cleaning chemical applications performed strictly according to manufacturer safety guidelines and local regulations?
Waste Disposal Method for Contaminated Filters and Cleaning Residues
Upload waste disposal manifests, certificates of destruction, or recycling documentation
Upload before and after photographs of coil and drain pan cleaning results
Document all occupant complaints related to indoor environmental quality received since the last inspection. Categorize complaints by type, assess severity, and develop a prioritized corrective maintenance plan with clear accountability and timelines.
Total Number of IAQ-Related Complaints Received in the Past 6 Months
Complaint Category Breakdown & Severity Assessment
Complaint Category | Number of Reports | Severity Rating (1=Minor, 5=Severe Health Impact) | Primary Affected Zones/Floors | Investigation Findings & Root Cause | Resolved | |
|---|---|---|---|---|---|---|
Temperature control issues - too hot/cold | 12 | Floors 16, 17 | Supply air temperature setpoint issue, sensor drift | |||
Musty odors & respiratory irritation | 5 | Floor 18, Break room | Mold growth in condensate pan, poor drainage | |||
Humidity discomfort - too humid | 8 | Floor 15, Conference rooms | Inadequate dehumidification capacity, high OA humidity | |||
Visible dust on surfaces | 3 | Floor 19, Open office area | Filter bypass gap identified, negative pressure | |||
Allergies, headaches, fatigue | 7 | Multiple floors | Suspected VOC off-gassing from new carpeting | |||
Have any complaints been recurring, escalated to management, or involved multiple occupants in the same zone?
Root Cause Analysis Summary for Unresolved or High-Severity Complaints
Corrective Maintenance Action Plan with Resource Allocation
Issue or Deficiency Identified | Detailed Proposed Corrective Action | Responsible Personnel or Department | Target Completion Date | Estimated Cost | Priority Level (1=Low, 5=Critical Health/Safety) | |
|---|---|---|---|---|---|---|
Inadequate outdoor air intake | Recalibrate OA dampers, increase minimum OA setting in BMS, verify airflow with pitot tube measurement | Controls Technician | 1/15/2025 | $500.00 | ||
Worn fan belt causing vibration & noise | Replace belt, realign pulleys, check motor bearings, verify tension | HVAC Mechanic | 12/20/2024 | $150.00 | ||
Mold in condensate pan | Clean and disinfect pan, fix drain slope, install pan treatment system | HVAC Maintenance Team | 12/18/2024 | $300.00 | ||
Filter bypass gaps | Seal filter frame gaps, replace damaged tracks, upgrade to gasketed filters | Filter Technician | 1/5/2025 | $800.00 | ||
Does the corrective maintenance plan require support from external contractors, specialists, or consultants?
Preventive Measures Implemented to Avoid Future Complaint Recurrences
Have building occupants been notified of inspection findings and the planned corrective maintenance actions?
Upload occupant complaint logs, investigation reports, or correspondence
Final certification and approval section. The Chief Building Engineer confirms the completeness and accuracy of the inspection data. The Property Manager acknowledges receipt of findings and commits resources for corrective actions. Both signatures are legally binding and required for compliance documentation.
Chief Building Engineer Full Name
Engineer Employee ID or Professional License Number
Engineer Sign-Off Timestamp
I certify that I have personally reviewed all inspection data, measurements, and observations recorded in this form and attest to their accuracy and completeness to the best of my knowledge and professional ability.
Were any critical deficiencies or immediate health and safety hazards identified during this inspection that require emergency action?
Is a follow-up inspection or re-verification recommended within 30 days due to identified issues?
Chief Building Engineer Digital Signature
Property Manager Full Name
Property Manager Title
Property Manager Review and Approval Timestamp
I acknowledge receipt of this inspection report, understand the corrective maintenance actions required, and accept responsibility for allocating necessary resources to ensure compliance with indoor air quality standards.
Do you approve the budget and resources requested for the corrective maintenance plan documented in Section 4?
Property Manager Digital Signature
Additional Comments, Special Instructions, or Escalation Notes
Should this report be escalated to corporate facilities management, legal department, or regulatory authorities?
Attach any supporting documentation, reference standards, equipment manuals, or additional photographic evidence