The most critical line is the suction line. Proper Refrigeration Piping Installation Practices – Installing a new air conditioning and heating system requires skill and knowledge of proper procedures in electrical wiring, controls wiring, and pipework. Working pressure is taken with the low side of the system. A properly designed and installed refrigerant piping system should: •Provide adequate refrigerant flow to the evaporators, using practical refrigerant line sizes that limit pressure drop •Avoid trapping excessive oil so that the compressor has enough oil to operate properly at all times •Avoid liquid refrigerant slugging •Be clean and dry Multi Evaporator System with Single Compressor and Individual Expansion Valve Mr. Jeevan Wankhade1 Ms. Madhuri Tayde2 Prof. Shylesha Channapattana3 1,2PG Student 3Assistant professor 1,2,3Department of Mechanical Engineering 1,2Dr.D.Y.P.S.O.E. There are two common methods of installation of the pipeline in multiple installation. than the metal ducting. Refrigeration piping involves extremely complex relationships in the flow of refrigerant and oil. Various evaporatorliquid and suction line, click it in the most convenient point. Liquid lines that will be exposed to direct sunlight ... lower than evaporators … Thathawade, Pune, India Abstract— Refrigeration is one of the most important aspects of thermal environment … Advantages of Multi-splits • The fact that one large condenser can be connected to multiple evaporators within the building reduces and/or eliminates the need for ductwork installation completely.