Free HVAC chiller annual service checklist
Enter your email below to download the PDF-ready service procedure. No account required.
A step-by-step annual service procedure for water-cooled and air-cooled chiller systems. Includes all quarterly service tasks plus full refrigerant leak test, compressor oil analysis, eddy current testing on heat exchanger tubes, calibration of all sensors and flow meters, VFD inspection, electrical insulation resistance test, full chiller performance test (COP/EER), isolation valve exercise and refrigerant register updates. Includes fluid specifications, parts list and technician sign-off. This page explains what the service involves, how to perform it, and offers a free PDF-ready form you can download straight away.
Last updated: 2026-03-26 · MapTrack
Commercial Director
How to use: Complete the quarterly service first. Then fill equipment details and work through each annual additional task. Tick Done as each task is completed. Record test results and notes. Set the next service due date and sign off.
- ✓ PDF-ready. Open and print to PDF
- ✓ Includes fluid specs, parts list and sign-off
- ✓ Free to use with or without MapTrack
Download free PDF template
Trusted by Australian facilities and maintenance teams
We use your email to send your download and occasional MapTrack updates. Unsubscribe anytime. Privacy policy
Preview the template
See the first part of the service procedure below. Enter your email above to download the full HVAC chiller annual service procedure (PDF-ready).
What is an HVAC chiller annual service?
An annual chiller service is the most comprehensive level of scheduled preventive maintenance for water-cooled and air-cooled chiller systems. It includes all quarterly service tasks plus additional items that are only practical or necessary once per year: a full refrigerant leak test using an electronic detector on every joint and fitting, compressor oil analysis (sent to a laboratory for acid, moisture and metal content testing), eddy current testing on condenser and evaporator tubes (water-cooled units), evaporator tube cleaning, calibration of all temperature sensors, pressure transducers and the chilled water flow meter, VFD inspection (if fitted), electrical insulation resistance testing on compressor motor windings (megger test), a full chiller performance test measuring COP or EER at design conditions, exercising all isolation valves, and updating the refrigerant register or F-gas log. The annual service typically requires the chiller to be shut down for several hours.
Benefits of scheduled chiller servicing
- Prevent compressor failure: oil analysis and insulation resistance testing detect early signs of internal degradation before catastrophic failure occurs.
- Maintain design efficiency: calibrating sensors, testing performance at design conditions and cleaning heat exchangers ensures the chiller operates at its rated COP/EER.
- Extend equipment life: comprehensive annual servicing can extend the life of a chiller from 15-20 years to 25+ years, deferring major capital expenditure.
- Regulatory compliance: refrigerant leak testing, register updates and documented service records meet environmental legislation requirements for fluorinated greenhouse gases.
- Reduce energy costs: chillers are often the single largest energy consumer in a building. Even small efficiency gains translate to significant cost savings over a year.
- Avoid emergency cooling hire: an unplanned chiller failure in summer can require temporary cooling at thousands of dollars per day. Preventive servicing avoids this.
Benefits of digitising forms in MapTrack
When you move from paper or static PDFs to digital forms in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
- Automatically get alerts when faults are identified.
- Link every form digitally as a PDF to the relevant asset, location or person.
- Receive a digital PDF copy with every submission to your email.
- Ability to share forms digitally.
- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
- Electronic signatures.
- Edit forms later without reprinting.
- Restrict permissions (who can view, complete or approve).
- Build forms with AI (describe what you need and MapTrack suggests the form).
Book a demo to see digital service procedures and calendar-based scheduling in MapTrack.
Service actions included in the annual procedure
This service procedure covers 12 additional annual service actions (on top of all quarterly tasks) across 7 system areas:
- Refrigerant system: full leak test with electronic detector, update refrigerant register / F-gas log, verify safety data sheets on site.
- Compressor: oil analysis (send sample for acid, moisture, metal content).
- Heat exchangers: eddy current test on condenser and evaporator tubes (water-cooled), clean evaporator tubes.
- Instrumentation: calibrate all temperature sensors, pressure transducers and chilled water flow meter.
- Variable speed drive: inspect VFD (fan, amps, fault log) if fitted.
- Electrical: insulation resistance test (megger on compressor motor windings).
- Performance: full chiller performance test (COP/EER at design conditions), exercise all isolation valves.
Fluid specifications
General fluid specifications for HVAC chiller systems. Always refer to the chiller manufacturer's service manual for your specific make and model.
| System | Type / Grade | Notes |
|---|---|---|
| Refrigerant | R-134a, R-410A, R-407C or as specified | Do not top up without leak test |
| Compressor oil | POE or mineral per manufacturer | Oil sample required annually |
| Condenser water treatment | Biocide, anti-scale, corrosion inhibitor | Water-cooled systems only |
Refrigerant handling requires an appropriate licence. Always refer to the manufacturer's service manual for your specific make and model.
Parts and consumables
Have the following parts and consumables ready before starting the annual chiller service (in addition to quarterly items):
- Oil sample kit (bottle, label, prepaid postage)
- Calibration equipment (reference gauges, RTD)
- Tube cleaning brushes / balls (water-cooled systems)
- Replacement sensors (if failed during testing)
- Electronic refrigerant leak detector
- Insulation resistance tester (megger)
Check the manufacturer's parts manual for specific part numbers before ordering.
How to perform an HVAC chiller annual service
- Complete all quarterly service tasks first. Refer to the quarterly service procedure for the full checklist.
- Perform a full refrigerant leak test using an electronic detector on all joints, fittings and service connections. Record any leaks found and repair before proceeding.
- Take a compressor oil sample and send to a laboratory for acid, moisture and metal content analysis. Record the sample details.
- For water-cooled units, perform eddy current testing on condenser and evaporator tubes (if due per schedule). Clean evaporator tubes.
- Calibrate all temperature sensors, pressure transducers and the chilled water flow meter against reference instruments.
- Inspect the VFD / variable speed drive (if fitted): check fan, amps and review the fault log.
- Perform an electrical insulation resistance test (megger) on the compressor motor windings. Record megaohm readings.
- Run a full chiller performance test: measure COP or EER at design conditions and compare to the manufacturer's rated performance.
- Exercise all isolation valves. Update the refrigerant register or F-gas log. Verify safety data sheets are available on site.
- Record any defects or recommendations in the notes section. Set the next quarterly and annual service due dates. Sign off and update the asset's maintenance log.
In MapTrack, you can schedule services by calendar date, get automatic reminders, complete service procedures on mobile and link every record to the asset. Book a demo to see how.
Get the free template
Enter your email above to download the HVAC chiller annual service procedure.
Back to download formChiller service interval hierarchy
HVAC chiller maintenance follows a tiered schedule where each level includes all tasks from the level below. This is called carry-forward or cumulative servicing.
Refrigerant check, compressor inspection, condenser cleaning, safety control testing, operating data. Estimated 2-3 hours.
Annual service (you are here)
All quarterly tasks plus refrigerant leak test, compressor oil analysis, tube testing, sensor calibration, VFD inspection, insulation resistance test and performance test. Estimated 4-8 hours.
In MapTrack, you can configure service schedules by calendar date and receive automatic alerts when each interval is due.
Frequently asked questions
- What is included in an HVAC chiller annual service?
- An annual chiller service includes all quarterly service tasks (refrigerant check, compressor inspection, condenser cleaning, safety controls, operating data) plus a full refrigerant leak test with electronic detector, compressor oil analysis (acid, moisture, metal content), eddy current testing on condenser and evaporator tubes (water-cooled), evaporator tube cleaning, calibration of all temperature sensors, pressure transducers and flow meter, VFD inspection, electrical insulation resistance test on compressor motor windings, full performance test (COP/EER at design conditions), exercising all isolation valves, and updating the refrigerant register. It takes approximately 4 to 8 hours.
- Why is compressor oil analysis important for chillers?
- Compressor oil analysis detects early signs of internal wear and contamination before they cause failure. The oil sample is tested for acid level (indicates refrigerant breakdown), moisture content (indicates a leak allowing air ingress), and metal particles (indicates bearing or component wear). Catching these issues early can prevent a catastrophic compressor failure that would cost tens of thousands of dollars to repair or replace.
- What is an eddy current test on chiller tubes?
- An eddy current test is a non-destructive testing method used to inspect the condition of condenser and evaporator tubes in water-cooled chillers. A probe is inserted through each tube and measures wall thickness, detecting pitting, erosion, scaling and corrosion. This test identifies tubes at risk of failure before they leak, which would contaminate the refrigerant circuit or water system. It is typically performed annually or biennially depending on water quality and tube material.
- Is the template free to use without MapTrack?
- Yes. Download and use the HVAC chiller annual service procedure for free. Open the file and use your browser's Print, then Save as PDF. No MapTrack account required. If you later want digital service procedures linked to each asset with scheduling, compliance tracking and alerts, we would be happy to show you MapTrack.
Need digital service procedures for your facilities?
Register every chiller, boiler and critical asset in MapTrack. Set up quarterly and annual service schedules, complete procedures on mobile, track parts and costs, and get automatic alerts when the next service is due.