What is in the form?
- Facility and equipment details
- Checklist
- Measurements
- Replaced filters
- Findings and recommendations
- Technician and facility representative approval
Air handling unit maintenance form checklist
- Pre-filter inspection / replacement
- Bag / fine filter inspection / replacement
- Filter frame and gasket sealing
- Fan wheel cleaning and balance
- Motor bearings, noise and vibration
- Belt tension, wear and pulley alignment
- Cooling coil fin cleaning
- Heating coil fin cleaning
- Drain pan cleaning and disinfection
- Trap and drainage flow test
- Dampers and damper motors
- Humidifier and droplet eliminator
- Heat recovery unit (heat exchanger / rotor)
- Freeze stat and safety controls
- Automation, sensors and set points
- Cabinet interior cleaning and door gaskets
Measurements in the form
| Measurement | Unit | Reference |
|---|---|---|
| Pre-filter differential pressure | Pa | Below the final pressure value |
| Bag filter differential pressure | Pa | Below the final pressure value |
| Supply fan motor current | A | Below the nameplate value |
| Exhaust fan motor current | A | Below the nameplate value |
| Fresh air temperature | °C | — |
| Supply air temperature | °C | Setpoint |
| Return air temperature | °C | — |
| Chilled water inlet / outlet | °C | Design value |
| Belt tension / deflection | mm | Manufacturer value |
Form preview
AIR HANDLING UNIT MAINTENANCE FORMForm no: YOİ-BF-03
| No. | Check / action | OK | Not OK | Done |
|---|---|---|---|---|
| 1 | Pre-filter inspection / replacement | |||
| 2 | Bag / fine filter inspection / replacement | |||
| 3 | Filter frame and gasket sealing | |||
| 4 | Fan wheel cleaning and balance | |||
| 5 | Motor bearings, noise and vibration | |||
| 6 | Belt tension, wear and pulley alignment | |||
| 7 | Cooling coil fin cleaning |
How is the form filled in?
- Fill in the facility, equipment and work order details; mark the maintenance type.
- Check each item in the checklist on site and tick the OK, not OK or done box.
- Write the measurements with their units; compare them with the values on the previous form.
- Enter the replaced parts and materials used in the table.
- Write the findings and recommendations; the technician and the facility representative approve with name, date and signature.
Who uses this form?
Technical teams at hospitals, shopping malls, factories, sports facilities and offices; hygiene-area managers; maintenance companies.
If your own team does the maintenance, you can use the form directly. If you would like us to perform the maintenance with measurements, see our air handling unit maintenance page; we deliver the signed form and a digital report.
Frequently asked questions
Is the air handling unit maintenance form free?
Yes. You can download the form as a PDF for free and print it for use at your own facility. The form carries the YOİ Mühendislik watermark; it may not be modified and distributed under another company's name.
What is the air handling unit maintenance form used for?
It records the checks, measurements, replaced parts and findings on a single sheet. By comparing values at the next maintenance, faults are noticed early; the form is used as a document in audit and warranty processes.
How is the form filled in?
First the facility and equipment details are written in, and the maintenance type is marked. For each item in the checklist, the suitable, not suitable or done box is ticked; measurements are written with their units. After completing the findings and recommendations section, the form is signed by the technician and the facility representative.
How long should maintenance forms be kept?
Forms should be kept as maintenance history for the life of the equipment. In public and corporate contracts, the retention period is stated in the contract and specification; refrigerant leak check records are also entered into the EKOMVET system.
Can you carry out the maintenance together with the form?
Yes. In our air handling unit maintenance service, we record all measurements on this form and deliver the signed form and a digital report. We work on a daily basis in Ankara, and on a project and contract basis across Türkiye.
Terms of use
This form was prepared by YOİ Mühendislik and carries the YOİ Mühendislik watermark. You may print it free of charge for internal use at your own facility. Modifying the form, removing the watermark, reproducing it under another company's name, selling it or republishing it on websites is prohibited; linking to it is allowed.