Education: Other trades certificate or diploma. Tasks: Install and overhaul heating systems. Install ventilation, air handling and air conditioning systems. Interpret blueprints or other instructions to plan methods or sequences of operation. Measure and lay out reference points for installation. Prepare tenders and quotations. Read blueprints or other instructions to determine work requirements. Assemble and install refrigeration or air conditioning components. Measure, cut and connect piping using welding and brazing equipment. Provide customer service. 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. Interpret gas codes. Handle, recover and store refrigerants. Repair and replace parts and components for entire refrigeration, air conditioning, ventilation or heat pump systems. Work conditions and physical capabilities: Physically demanding. Own tools/equipment: Tools. Safety equipment/gear. Steel-toed safety boots. Safety glasses/goggles. Personal suitability: Accurate. Flexibility. Initiative. Reliability. Team player. Experience: 5 years or more. Green job: Involves duties and responsibilities that lead to positive environmental outcomes.