A cleaning service program water system: 1.2, chilled water system cleaning reason: air conditioning chilled water softening equipment normally used by demineralized water treatment refrigeration plant, can delay the scaling condition refrigeration equipment maintenance, but during operation must ensure that the system of internal water clean and PH value of 7, and after a long run to be the system of decontamination, rust, to avoid clogging the pipeline system and the air conditioning running equipment. 3. brass condenser fouling and more small diameter 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 refrigeration plant, Snow Dragon refrigeration (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.