UEE51225 Diploma of Air Conditioning and Refrigeration Engineering
UEE51225 is the nationally recognised Diploma of Air Conditioning and Refrigeration Engineering. It prepares you for work as an airconditioning and refrigeration mechanic. It has been the current version on the national register since 2025, when it replaced UEE51220. Employers posted about 416 airconditioning and refrigeration mechanic jobs in June 2026, down 11.1% on a year earlier.
Register data synced 18 Sept 2026 from training.gov.au
Online job ads · June 2026
416last month
Airconditioning and refrigeration mechanic roles advertised across Australia
Down on a year earlier
Long-term outlook
Mixed
One structural signal up; current job ads down
Register status
Current
Replaced UEE51220 in 2025
Enrolments
First year
10 enrolled in 2025, its first data year
Funding status
Verification pending
Checked against official state program lists
The short answer
The signals behind the Diploma of Air Conditioning and Refrigeration Engineering are mixed, and both sides are worth weighing. Airconditioning and refrigeration mechanics are in national shortage. Job ads in June 2026 were down 11.1% on a year earlier. These are official statistics, not a promise about your result.
Jobs and Skills Australia
Is the work there?
Employers are posting fewer airconditioning and refrigeration mechanic jobs than a year ago. About 416 airconditioning and refrigeration mechanic jobs were advertised online in June 2026, down 11.1% on a year earlier. Over the last 12 months there were about 6,100 job ads, while 10 people were training in the qualification nationally (2025). Ads show the market. Enrolments show the pipeline. Neither is a job promise.
Jobs and Skills Australia, Internet Vacancy Index · latest month June 2026 · ANZSCO 3421
Combined monthly online job ads across Airconditioning And Refrigeration Mechanic, to June 2026
Official shortage list
Australia's official shortage list rates airconditioning and refrigeration mechanics as in shortage. The 2025 Occupation Shortage List rates Airconditioning and Refrigeration Mechanic as in national shortage.
Jobs and Skills Australia, Occupation Shortage List · 2025 assessment
Ten year outlook
Airconditioning and refrigeration mechanic jobs are projected to stay about flat. Jobs and Skills Australia projections put these occupations at 29,234 workers in May 2025, 29,920 by May 2030 (up 2.3%) and 31,186 by May 2035 (up 6.7%).
29,234
workers, May 2025
29,920
workers, May 2030
31,186
workers, May 2035
Jobs and Skills Australia employment projections · May 2025 to May 2035
Occupation mapping by Get Course, shown with ANZSCO codes so it can be checked.
NCVER Total VET Activity
Who is training
National enrolment data for UEE51225 starts in 2025: 10 people enrolled that year. There is no earlier year to compare yet.
2019
not yet introduced
2020
not yet introduced
2021
not yet introduced
2022
not yet introduced
2023
not yet introduced
2024
not yet introduced
10
2025
NCVER Total VET Activity · 2025 collection
training.gov.au · Australian Qualifications Framework
What does studying it involve?
The register and the national framework set some of this. Providers set the rest.
How long it takes
A Diploma is typically 1 to 2 years of full-time study under the Australian Qualifications Framework. Providers set the exact length and pace.
Delivery
Providers set the delivery mode.
Credit for experience
Recognition of prior learning applies to UEE51225 like any qualification on the national register: an approved provider assesses your evidence against each unit.
training.gov.au national register; Australian Qualifications Framework.
State subsidised training lists
What does it cost, and who funds it?
State funding for UEE51225 is being verified against official program lists.
Eligibility and student contributions vary by program and provider. The official state listing is the source of truth. In a subsidised place the government pays most of the tuition and you pay a co-contribution set by the program and provider.
Official state subsidised training program lists, verified per state. Full-fee prices will appear here as partner courses are listed.
training.gov.au · unit packaging
What is in the qualification
The register lists 35 core units for the Diploma of Air Conditioning and Refrigeration Engineering, plus 55 elective options. Prerequisites apply to 68 of them, marked below.
UEECD0007Apply work health and safety regulations, codes and practices in the workplace
UEECD0010Compile and produce an energy sector detailed report
UEECD0016Document and apply measures to control WHS risks associated with electrotechnology work (has prerequisites)
UEECD0019Fabricate, assemble and dismantle utilities industry components (has prerequisites)
UEECD0020Fix and secure electrotechnology equipment (has prerequisites)
UEECD0024Implement and monitor energy sector WHS policies and procedures
View all 35 core units
UEECD0027Participate in development and follow a personal competency development plan
UEECD0042Solve problems in ELV single path circuits (has prerequisites)
UEECD0051Use drawings, diagrams, schedules, standards, codes and specifications (has prerequisites)
UEECS0033Use engineering applications software on personal computers
UEERA0001Analyse the operation of HVAC air and hydronic systems (has prerequisites)
UEERA0002Analyse the psychrometric performance of HVAC/R systems (has prerequisites)
UEERA0031Diagnose and rectify faults in air conditioning and refrigeration control systems (has prerequisites)
UEERA0034Establish heat loads for commercial refrigeration and/or air conditioning applications (has prerequisites)
UEERA0035Establish the basic operating conditions of air conditioning systems (has prerequisites)
UEERA0036Establish the basic operating conditions of vapour compression systems (has prerequisites)
UEERA0038Establish the thermodynamic parameters of refrigeration and air conditioning systems (has prerequisites)
UEERA0042Evaluate thermodynamic and fluid parameters of refrigeration systems (has prerequisites)
UEERA0044Find and rectify faults in single phase motors and associated controls (has prerequisites)
UEERA0045Find and rectify faults in three phase motors and associated controls (has prerequisites)
UEERA0050Install refrigerant pipe work, flow controls and accessories (has prerequisites)
UEERA0052Install, commission, service and maintain low temperature systems (has prerequisites)
UEERA0053Install, commission, service and maintain medium temperature systems (has prerequisites)
UEERA0059Prepare and connect refrigerant tubing and fittings (has prerequisites)
UEERA0062Recover and charge refrigerants (has prerequisites)
UEERA0079Safely handle refrigerants and lubricants (has prerequisites)
UEERA0081Select refrigerant piping, accessories and associated controls (has prerequisites)
UEERA0092Solve problems in low voltage refrigeration and air conditioning circuits (has prerequisites)
UEERA0094Verify functionality and compliance of refrigeration and air conditioning installations (has prerequisites)
UEERA0099Install, commission, service and maintain air conditioning systems (has prerequisites)
UEERE0015Implement and monitor energy sector environmental and sustainable policies and procedures
UEERL0001Attach cords and plugs to electrical equipment for connection to a single phase 230 Volt supply (has prerequisites)
UEERL0002Attach cords, cables and plugs to electrical equipment for connection to 1000 V a.c. or 1500 V d.c. (has prerequisites)
UEERL0004Disconnect - reconnect electrical equipment connected to low voltage (LV) installation wiring (has prerequisites)
UEERL0005Locate and rectify faults in low voltage (LV) electrical equipment using set procedures (has prerequisites)
View the 55 elective options
BSBESB402Establish legal and risk management requirements of new business ventures
BSBINS501Implement information and knowledge management systems
BSBLDR522Manage people performance
BSBSTR501Establish innovative work environments
BSBSTR502Facilitate continuous improvement
BSBTWK502Manage team effectiveness
CPCWHS1001Prepare to work safely in the construction industry
HLTAID009Provide cardiopulmonary resuscitation
MEM16006Organise and communicate information (has prerequisites)
MEM16008Interact with computing technology (has prerequisites)
MEM30031Operate computer-aided design (CAD) system to produce basic drawing elements
MEM30032Produce basic engineering drawings
MEM30033Use computer-aided design (CAD) to create and display 3D models (has prerequisites)
UEECD0013Develop and implement energy sector maintenance programs
UEECD0039Provide solutions to basic engineering computational problems (has prerequisites)
UEECO0001Estimate electrotechnology projects
UEECO0014Prepare tender submissions for electrotechnology projects (has prerequisites)
UEERA0005Apply safety awareness and legal requirements for ammonia refrigerant
UEERA0006Apply safety awareness and legal requirements for carbon dioxide refrigerant
UEERA0007Apply safety awareness and legal requirements for flammable refrigerants
UEERA0014Design ammonia refrigerated systems (has prerequisites)
UEERA0015Design carbon dioxide refrigerated systems (has prerequisites)
UEERA0016Design commercial refrigeration systems and select components (has prerequisites)
UEERA0021Design control systems for refrigeration or heating, ventilation and air conditioning systems (has prerequisites)
UEERA0022Design heating, ventilation and air conditioning (HVAC) systems and select components (has prerequisites)
UEERA0023Design hydrocarbon refrigerated systems (has prerequisites)
UEERA0025Design industrial refrigeration systems and select components (has prerequisites)
UEERA0027Design secondary refrigerant systems (has prerequisites)
UEERA0028Determine noise and vibration encountered in HVAC/R applications (has prerequisites)
UEERA0039Evaluate and report on building services energy management systems (has prerequisites)
UEERA0040Evaluate and report on the indoor air quality of buildings (has prerequisites)
UEERA0046Install and commission ammonia refrigeration systems, components and associated equipment (has prerequisites)
UEERA0047Install and commission carbon dioxide refrigeration systems, components and associated equipment (has prerequisites)
UEERA0048Install and commission flammable refrigerant air conditioning and refrigeration systems (has prerequisites)
UEERA0054Maintain microbial control of refrigeration and air conditioning systems
UEERA0060Produce HVAC/R control system diagrams (has prerequisites)
UEERA0061Produce HVAC/R system design drawings (has prerequisites)
UEERA0065Repair and service ammonia refrigeration systems (has prerequisites)
UEERA0066Repair and service carbon dioxide refrigeration systems (has prerequisites)
UEERA0067Repair and service secondary refrigeration systems (has prerequisites)
UEERA0068Repair and service self-contained carbon dioxide refrigeration and heat pump systems (has prerequisites)
UEERA0069Resolve problems in beverage dispensers (has prerequisites)
UEERA0070Resolve problems in central plant air conditioning systems (has prerequisites)
UEERA0071Resolve problems in dairy refrigeration systems (has prerequisites)
UEERA0072Resolve problems in hydronic systems (has prerequisites)
UEERA0073Resolve problems in ice making systems (has prerequisites)
UEERA0075Resolve problems in post-mix refrigeration systems (has prerequisites)
UEERA0076Resolve problems in refrigerated beverage vending cabinets (has prerequisites)
UEERA0077Resolve problems in transport refrigeration systems (has prerequisites)
UEERA0078Resolve problems in ultra-low temperature refrigeration systems (has prerequisites)
UEERA0080Select basic commercial refrigeration system equipment, components and accessories (has prerequisites)
UEERA0082Select residential air conditioning system equipment, components and accessories (has prerequisites)
UEERA0084Service and repair self-contained flammable refrigerants air conditioning and refrigeration systems (has prerequisites)
UEERA0097Install, commission, service and maintain variable refrigerant flow air conditioning systems (has prerequisites)
UEERA0098Inspect, test and repair fire and smoke control features of mechanical services systems (has prerequisites)
training.gov.au national register, UEE51225 release 1
Same training package
What skill sets come from the UEE training package?
Instrumentation - Programmable Control Systems Skill Set
No Get Course partner currently lists this qualification. Check the national register for organisations approved to deliver it, and remember that approval to deliver is a regulatory fact, not a recommendation. You can browse live courses from our partners and enquire today.
Get Course maps UEE51225 to its occupations using the register’s own outcome wording, shown with ANZSCO codes (here, 3421) so the mapping can be checked. Job advertisement counts come from the Jobs and Skills Australia Internet Vacancy Index and count online ads, not vacancies filled. Enrolment counts come from NCVER Total VET Activity and count people in training, not completions. Funding rows appear only after verification against the official state program list. Source vintages: register training.gov.au, synced 10 September 2026; Jobs and Skills Australia Internet Vacancy Index latest month June 2026; NCVER Total VET Activity 2025 collection; employment projections May 2025 to May 2035 release; Occupation Shortage List 2025 assessment; register synced 18 Sept 2026. Page last updated 19 Sept 2026.
About this page. Every number on this page shows its source and date. Register data synced 18 Sept 2026 from training.gov.au. Compiled by Get Course from public data sources. It is not provided or endorsed by any training organisation, and nothing here is advice about your individual situation. Statistics describe groups; your result depends on you. If you represent a training organisation and want to correct or add to this page, contact hello@getcourse.com.au.