7 chiller maintenance, air-cooled chiller chiller cooling coil keep the surface clean refrigeration equipment maintenance to ensure air circulation around the low temperature, regular cleaning fouling refrigeration plant on the coil, to ensure good heat transfer effect. 8. The chiller has been used for more than six months, or high / low pressure switch fails often, or reduce the cooling capacity of refrigeration equipment, please arrange for staff to clean the condenser. If you follow the above instructions for repair times, chiller fault alarm still sounding, it should ask a professional service chiller personnel repaired. 3. brass condenser fouling and more small diameter air conditioning and refrigeration equipment, poor heat dissipation. Solution: Clean the condenser brass. 4. Too many refrigerant. Solution: excess refrigerant emissions. 5. The expansion valve opening is too large. Solution: appropriate to reduce the expansion valve opening degree, the compressor protection thermal relay valves (RESTET) pressed to identify the reasons air conditioning and refrigeration equipment, refrigeration Snow Dragon (certified), refrigeration equipment by the Dongguan City-long Refrigeration Electrical and Mechanical Equipment Engineering Co. The company offers. 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.