After the cold storage is newly installed or reused after a long-term use, comprehensive testing and debugging should be carried out. Under the condition that all indicators are normal, it can be started under the guidance of professional refrigeration technicians.
Pay attention to the collision and scraping of the cold storage board and appearance. Because it may cause depression and rust, serious will cause a small range of insulation performance reduced.
Because the prefabricated cold storage is made of many pieces of thermal insulation panels, so there is a certain gap between the panels. These gaps will be sealed with sealant to prevent air and water from entering. So in the use of some sealing failure parts should be repaired in time, and resolutely eliminate the leakage and cooling phenomenon.
Prevent large amounts of ice and water on the ground. If there is ice, do not use hard objects to clean up to prevent damage to the ground.
Initial operation unit: the oil surface and the oil return condition of the compressor and the cleanliness of the oil should be observed. Found that the oil is dirty or the oil surface drop should be solved in time, so as not to cause poor lubrication.
Clean the condenser frequently to keep it in a good heat transfer state. To often check the condenser, scaling problems, to remove the dust in time. Check whether the motor and fan rotate flexibly. If there is abnormal friction sound, the same model bearing should be replaced. The dirt on the fan blade, coil, water plate should be removed frequently.
For the evaporator: to often check the defrosting situation, whether the defrosting is timely and effective, will affect the refrigeration effect, resulting in the refrigeration system back liquid.
Observe the operating status of the compressor frequently and check its exhaust temperature. During the season change, special attention should be paid to the operating state of the system, and adjust the liquid supply and condensation temperature of the system in time.
Listen carefully to the compressor, condenser fan running sound, found abnormal should be handled in time. Check the vibration of the compressor and exhaust pipe.
Refrigeration technicians shall inspect and maintain the compressor once a year. Check the oil level and oil color of the compressor. If the oil level is lower than 1 / 2 of the observation mirror, the cause of the oil leakage should be identified and the lubricating oil should be filled after troubleshooting. If the oil has changed color, the lubricating oil should be completely replaced completely.
Regularly check whether the connection pipe on the connecting pipes and valve parts of the refrigeration unit is firm, and whether there is refrigerant leakage (the oil trace will appear in the general leakage place).
