Education: Secondary (high) school graduation certificate. Tasks: Install equipment in refrigerated trucks used to transport food or medical supplies. Install refrigeration systems. Maintain and repair equipment in refrigerated trucks. Measure and lay out reference points for installation. Troubleshoot heating systems. Troubleshoot ventilation, air handling, refrigeration and air conditioning systems. 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. Repair and replace parts and components for entire refrigeration, air conditioning, ventilation or heat pump systems. Experience: 1 year to less than 2 years. Employment terms options: Flexible hours.