1 small volume, 2 light weight, stable operation, 3 small vibration, low noise, 4 stable performance, long life AR series semi-enclosed refrigeration compressor1 compressor design, whether by the state environmental protection requirements of the program using the transition refrigerant HCFC-22, or use the new TCF refrigerant R134a, R404A, R507A and R407C, series compressors can smooth, reliable ...