5. Screw salt factory unit has completed all piping connections refrigeration equipment maintenance, and the refrigeration plant has been tested, the user simply coupled power systems, cooling water systems, chilled water system and adding the right amount of refrigerant and refrigerant oil can be used . 6. Please specify when ordering brine contained unit refrigerant type, load refrigerant outlet temperature, load, and temperature difference between the import and export of frozen coolant water flow. 2, cleaning services program air system: 2.2 cleaning and disinfection programs: ① various types of filter cleaning: including new air handling units, air conditioning units, fan coil intake and return air filter. ② air conditioning equipment inside cleaning: Regular flushing fresh air unit, air conditioning units, fan coil fin coils, condensate drain pan, inside the box over downwind used refrigeration equipment, into the duct to reduce harmful substances. ③ The "robot" duct cleaning technology, within the wind pipe be thoroughly cleaned. ④ other can filter replacement in accordance with the actual situation in effect, circulating air system add shielded UV sterilizer. Refrigeration plant, Snow Dragon refrigeration (certified), refrigeration equipment provided by the Dongguan City-long Refrigeration Electrical and Mechanical Equipment Engineering Co., Ltd .. Dongguan City-long Refrigeration Electrical Equipment Engineering Co., Ltd. (www.dgxuelong.com) is Dongguan, heat, refrigeration and air conditioning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the Snow Dragon refrigeration leadership with the staff warmly welcome all inquiries negotiations to create a better future XUELONG refrigeration.