It is a practical training course on maintenance and operation procedures of most types of residential and commercial HVAC&R systems (such as refrigerators, deep freezers, water coolers, ice makers, soda cola, window, split A/C units, and central package units). Also, the course will cover all mechanical and electrical servicing of these systems. Preventive, periodic, retune, forecasting maintenance of each system will be included. Shaft aliments procedure of HVAC&R equipment’s such as pumps, fans, blowers will be covered.