YSB family unit is the introduction of Japanese DAIKIN brine technical development and production of refrigeration equipment to provide industrial cooling systems and equipment required for special equipment at low temperature brine. The entire unit, including semi-hermetic reciprocating compressors, shell and tube condenser, evaporator, dry, filter, expansion valve, solenoid valves, electrical control boxes and other components, assembled into one. Compact structure, stable performance, low noise, users can power on, water pipeline can be put into use.