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Regenerator is a kind of subcooler, part of the refrigerant evaporate at temperature higher than that in main evaporator and abservably increase the condensate depression. Economizer provide the system with 2 advantages:
(1) Increasing system COP by enlarge the condensate depression of refrigerant in main side.
(2) Provide effective cooling for compressor.
Effectively improve COP of of low temperature heat pump system and make heat pump working in very low temperature.



a. Has flexible structure, need less room for install;
b. Easy to install, less cost;
c. High efficiency;
d. Little welding points, more reliable;
e. For structure, there are single-out-tube & single-inner-tube type and single-out-tube & multi-inner-tube type.