Features of the Company series screw unit is simple and stable system design used refrigeration equipment, energy-efficient operation. Menu: switch the screen to the menu group picture. Menu group picture with six sub-menus are as follows: 1, temperature display: The water temperature setting of the unit, the actual water temperature, the actual water temperature and set temperature difference. 2, the pressure display: The compressor discharge pressure, suction pressure 3. brass condenser fouling more, bore little refrigeration equipment maintenance, 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 cause of refrigeration equipment repair | 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.