2, cleaning services program air system: 2.1 Air Systems Cleaning reason: Most commonly used in central air-conditioning systems coarse filter, air filter out up to 40 percent of respirable particulate matter, more than half of respirable particulate matter will enter central air conditioning system. On the one hand, these respirable particulate matter may become a viral vector used refrigeration equipment, the virus in the air duct flow propagation, resulting in cross-infection; on the other hand, small particles of respirable particulate matter interconnected become a big dust accumulated in the air duct The bottom and corners, over the edge breeding microorganisms (such as Legionella). Wind systems exist with these viruses and microbes ease of duct was sent around the room, will cause secondary pollution of indoor air, which people live and work environment and long-term harm to the refrigeration equipment maintenance, causing productivity drop, and prone to respiratory diseases. Therefore, it is necessary to periodically conduct a thorough cleaning and disinfection of air system work. Chiller maintenance 5, to keep the room clean and well-ventilated refrigeration equipment, in addition to regular cleaning of the condenser refrigeration plant masonry work, to ensure stable operation of the unit normal. 6, water-cooled chiller cooling towers to keep clean, and keep the air circulating around the water tower, low temperature, to avoid debris from entering the cooling efficiency of the cooling tower. 7. Keep the chiller air-cooled chiller cooling coil surface cleaning, ensure air circulation around the low temperature, regular cleaning of fouling on the coil, to ensure good heat transfer. Refrigeration equipment maintenance | 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.