Education: College, CEGEP or other non-university certificate or diploma from a program of 1 year to 2 years. Tasks: Install refrigeration systems. Install ventilation, air handling and air conditioning systems. Measure and lay out reference points for installation. Read blueprints or other instructions to determine work requirements. Troubleshoot heating systems. Troubleshoot ventilation, air handling, refrigeration and air conditioning systems. Measure, cut and connect piping using welding and brazing equipment. Start up system and test for leaks using testing devices. Perform maintenance such as, recharging system with refrigerant, checking and testing regulators or calibrating system. Repair and replace parts and components for entire refrigeration, air conditioning, ventilation or heat pump systems. Experience: 2 years to less than 3 years. Other benefits: Other benefits.