Contribute to the City of Hamilton, one of Canada’s largest cities - home to a diverse and robust economy, an active and inclusive community, a robust cultural and dining scene, hundreds of kilometers of hiking trails and natural beauty just minutes from the downtown core, and so much more. Join our diverse team of talented and ambitious staff who embody our values of sensational service, courageous change, steadfast integrity, collective ownership and being engaged empowered employees. Help us achieve our vision of being the best place to raise a child and age successfully. #BeTheReason

- Job ID #31748: Refrigeration AC Technician
- Union: CUPE Local 5167
- Job Description ID #:1322
- Close date: Interested applicants please submit your application online at www.hamilton.ca/city-council/jobs-city by 4:00 p.m. on July 15, 2026.
- Vacancy type: This posting is for an existing vacancy
- Internal applicants should apply with your work e-mail address. External applicants are considered only after the internal posting process has been completed. Only applicants chosen for an interview will be contacted.

SUMMARY OF DUTIES

Report to the Supervisor, Facilities Management. Conducts scheduled and unscheduled maintenance and repairs of mechanical equipment and building systems by maintaining, adjusting, and repairing equipment at various Corporate sites as required.

GENERAL DUTIES

Conduct scheduled and unscheduled maintenance and repairs of mechanical equipment such as, boilers, heat pumps, cooling towers, humidifiers, circulating pumps, exhaust fans air handling units, ice makers, natural gas/ electrical cooking appliance, unit heaters, tube heaters, roof top units and generators,

Prepare plans and prioritize required equipment maintenance.

Troubleshoots and repairs electrically controlled heating, ventilation,



and air conditioning equipment such as infrared heaters, rooftop units, heat recovery units, CO2 , refrigerant monitor alarm system, generators, domestic hot water boilers and mixing valves, toluene exhaust system and alarm monitor, modulating damper and valve systems.

Troubleshoots and repairs a refrigeration or heating system by competent use of all required temperature and pressure testing instruments, recovery equipment and cylinders, vacuum pump, brazing equipment, multimeter, amp meter, megger meter, refrigerant leak locating equipment, manometer, charging scale, capacitor tester, sling psychrometer, pneumatic sequencer, combustion efficiency tester, etc. Inspect DDC controls systems, preform preventative maintenance and troubleshoot issues and make emergency repairs as necessary.

Recharges or adjusts the oil or refrigerant charge of a refrigeration system to ensure proper efficiency, compressor cooling and protection against compressor slugging by measuring and adjusting the heat and sub-cooling of a system.

Records information from refrigeration units such as temperatures, pressure.

Locates refrigerant leaks using an electronic detector, ultrasonic detector, and soap solution.

Reads electrical and pneumatic drawing where required and modifies equipment when required for better control or efficiency.

Liaises with staff in other Departments such as I.T., Fire Department, and Community Services. Recognizes and corrects water or air flow problems.

Replaces components such as fan blades, valve parts, bearings, pulleys, pump parts, motors, compressors, coils, heat exchangers, sensors, burner parts, electrical parts, wiring, etc.

Operates power and hand tools such as drills, vacuum pump, electric tube cleaner, socket wrenches, pipe wrenches, screwdrivers, and hammer.

Oversees work of contractors as requested.

Monitor and test buildin

📌 Job ID #31748: Refrigeration AC Technician (Canada)
🏢 The City of Hamilton
📍 Canada