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What an HVAC technician does
An HVAC technician works on heating, ventilation and air-conditioning systems — installing units, connecting ductwork and controls, commissioning equipment and carrying out planned servicing. The role keeps indoor environments comfortable and systems reliable.
Work on refrigerants and certain equipment can be regulated, so technicians are expected to hold the qualifications or certification recognised in their country and to follow safety and handling rules for the systems they work on.
Core responsibilities
- Installing heating, ventilation and air-conditioning units.
- Connecting ductwork, pipework, refrigerant lines and controls.
- Commissioning systems and checking performance.
- Carrying out planned servicing and maintenance.
- Diagnosing faults and replacing components.
- Following refrigerant-handling and safety rules.
Skills and qualities
- Relevant HVAC qualification or certification for the jurisdiction.
- Knowledge of heating, cooling, ventilation and controls.
- Methodical fault-finding and diagnostics.
- Care with refrigerants and safe handling.
- Accuracy when commissioning and recording readings.
- Customer care and clear communication.
Typical employers and settings
- HVAC and building-services contractors.
- Facilities-management and maintenance teams.
- Construction firms and main contractors.
- Commercial, retail and industrial sites.
- Service and installation companies.
How the role is recruited
- Roles are filled directly or through trade agencies, with certification usually required.
- Screening confirms qualifications, any refrigerant certification and right to work.
- Interviews are practical and may include a technical assessment.
- Employers commonly check references and required safety cards.
- Onboarding covers the specific systems, vehicles and procedures.
Documents involved
- A job description listing the qualifications and systems involved.
- Proof of HVAC qualification or refrigerant certification.
- An employment contract or assignment terms for agency work.
- An offer letter confirming role, base and start date.
- Right-to-work and identity checks as required.
- A safety induction and onboarding checklist.
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