working from requests to repair and perform predictive and preventative maintenance procedures on ammonia and Freon refrigeration systems including, but not limited to compressors, pumps, fans, heat exchangers, glycol systems, various industrial utility systems, motors, and power distribution systems. handling or training of entry level refrigeration technicians including, but not limited to day to day operations, inspections and inspection techniques, basic repairs and repair techniques, and conformance to all state, local, and Publix regulations and policies.