Water system: the pump is responsible for pumping out of water from the tank to the user's device to be cooled, chilled water temperature after the heat away refrigeration equipment repair, then back to the freezing tank. Electrical automatic control system: including power section and the automatic control section. Power partly through contacts used refrigeration equipment, compressors, fans, pumps and other power supply. 3. brass condenser fouling much smaller diameter refrigeration plant, cooling is poor. 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 used 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.