H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  The high-pressure failure of the chiller means that the compressor discharge pressure is too high, which causes the high-pressure protection relay to operate. The compressor discharge pressure reflects the condensing pressure, the normal value should be 1.4~1.8MPa, and the protection value setting is recommended not to exceed 2.0MPa. Because the long-term pressure is too high, it will cause the compressor to run too much current, easily burn the motor, and cause damage to the compressor. So what is the main cause of high pressure failure? How to solve it? 1. Excessive refrigerant charge. This situation generally occurs after maintenance, and it is manifested as high suction and discharge pressure and balance pressure, and the compressor operating current is also high. Solution: The refrigerant should be discharged according to the suction and discharge pressure and the balance pressure and the operating current under the rated conditions until it is normal. 2. The cooling water t...