DLW condenser units use R22 as refrigerant.

The low pressure pole uses two AR semi-hermetic refrigerating compressors in parallel while the high pressure pole uses one AM or AR semi-hermetic refrigerating compressor.

According to the requirement of ODS project of UN environment protection, AM and AR series compressors are manufactured with the technology imported from AC UK and advanced machinery imported from Japan, German and Denmark. The supplement of lubricant in the unit is done by the imported oil level controller.

The unit selects high efficient water-cooled condenser and plate type heat exchanger as center cooler. The units are matched with imported particle filter, pressure controller, oil pressure controller, safety valve, solenoid valve, expansion valve, fluid controller and Siemens PLC, making its performance excellent, structure reasonable, technical index advanced and operation convenient.

The units can be widely equipped with the low temperature, fast freezing and environment test facilities in hospitals, schools, factories, miners, food industry and commercial line.