What is in the form?
- Facility and equipment details
- Checklist
- Measurements
- Replaced parts and materials used
- Findings and recommendations
- Technician and facility representative approval
Chiller maintenance form checklist
- Condenser fin / tube bundle cleaning
- Evaporator inlet-outlet water temperature check
- Compressor oil level and color
- Compressor crankcase heater operation
- Refrigerant leak test (electronic detector)
- Sight glass and moisture indicator
- Filter drier and expansion valve check
- Fan motors, blades and bearings
- Flow switch and water filter / strainer
- Glycol ratio and freeze protection
- Contactor, terminal and panel tightness check
- Safety pressure switches and protection tests
- Control panel alarm history and setpoints
- Vibration, noise and insulation check
Measurements in the form
| Measurement | Unit | Reference |
|---|---|---|
| Evaporator water inlet / outlet | °C | Design (e.g. 12/7) |
| Condenser water inlet / outlet | °C | On water-cooled units |
| Suction pressure | bar | Manufacturer value |
| Discharge (condensing) pressure | bar | Manufacturer value |
| Superheat | K | Manufacturer value |
| Subcooling | K | Manufacturer value |
| Compressor current L1 / L2 / L3 | A | Below nameplate, balanced |
| Supply voltage | V | ±%10 |
| Outdoor temperature | °C | — |
| Oil pressure / temperature | bar / °C | On screw compressors |
Form preview
CHILLER MAINTENANCE FORMForm no: YOİ-BF-01
| No. | Check / action | OK | Not OK | Done |
|---|---|---|---|---|
| 1 | Condenser fin / tube bundle cleaning | |||
| 2 | Evaporator inlet-outlet water temperature check | |||
| 3 | Compressor oil level and color | |||
| 4 | Compressor crankcase heater operation | |||
| 5 | Refrigerant leak test (electronic detector) | |||
| 6 | Sight glass and moisture indicator | |||
| 7 | Filter drier and expansion valve check |
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 operations teams of hospitals, shopping malls, hotels, factories and office buildings; mechanical subcontractors; service companies running maintenance contracts.
If you carry out maintenance with your own team, you can use the form directly. If you would like us to carry out maintenance with measurements, see our chiller maintenance page; we deliver the signed form and a digital report.
Frequently asked questions
Is the Chiller 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 a chiller maintenance form 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 chiller maintenance service, we record all measurements with this form and deliver the signed form and a digital report. We work daily 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.