① The compressor capacity should be determined by multiplying the total mechanical load of each evaporation temperature system by the operating time coefficient. Unless otherwise specified, equipment is generally not used.

② When using a piston reciprocating Freon compressor, a two-stage compressor should be used when the compression ratio is greater than 10; Single stage compression should be used if it is less than or equal to 10. The two-stage compression system for Freon is generally recommended to use a single-stage throttling intermediate incomplete cooling method.

③ Generally, some equipment such as coolers, oil separators, condensers, and liquid storage tanks in cold storage should be compatible with the refrigeration capacity of Freon refrigeration compressors.

④ The working conditions for using Freon refrigeration compressors shall not exceed the limited working conditions specified by the cold storage enterprise.

⑤ In Freon refrigeration systems, a regenerative cycle should generally be used.

⑥ The operating hours of the refrigeration compressor can generally be 12-16 hours per day and night for a cold storage of 5-100 tons.