SLA.A.33B.54.13.F4

Suction line accumulator is placed between evaporator and compressor. It prevents compressor from sucking liquid so that only vapor refrigerant gets through to the compressor. Special designs such as U-tube and tube-in-tube are used for maximum refrigerant flow and minimum oil trap. These designs allow refrigerant vapor to be sucked from the top, while oil and liquid refrigerant trapped in suction line accumulator are sucked from the hole on the outlet tube and return to the compressor together with refrigerant vapor. In applications with very low evaporation temperature suction line accumulator with built in heat-exchanger is used in order to facilitate evaporation of liquid refrigerant or to reduce oil viscosity and provide fluent refrigerant flow. It is strongly recommended to use suction line accumulators under the following conditions; Parallel connected compressors, transport refrigeration, two-stage compressors, hot gas defrost systems, container cooling, long line systems, reverse cycle systems, heat pump, flooded evaporators. The accumulator should have an adequate liquid holding capacity, which varies according to the system. Normally this should not be less than 50% of the system total refrigerant charge and it is suggested to be between %50 and %70. Accumulator should work without adding excessive pressure drop in the system.