Specialized air conditioners for machine rooms are widely used in computer rooms, program-controlled switching rooms, satellite mobile communication stations, large medical equipment rooms, laboratories, test rooms, precision electronic instruments and other high-precision environments such as production workshops, such environments have high requirements for the air temperature, humidity, cleanliness, airflow distribution and other indicators, which must be operated by the 365 days per year, 24 hours per day, safely and reliably to ensure that the special machine room air conditioning equipment. The special air conditioning equipment for the special machine room is guaranteed.