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Cold storage repair

Cold storage repair

Cold storage repair

Cold storage repair

Cold storage repair

,中央空调安装,中央空调改造,冷库保养,冷冻机维修,冷冻机保养,冷库维修的专业技术公司,是一家经工商注册的正规上海制冷设备维修公司。 Shanghai Xinrui Appliance Repair Service Co., Ltd. is a professional technology company specializing in central air-conditioning repair, central air-conditioning maintenance , central air-conditioning installation, central air-conditioning renovation, cold storage maintenance, freezer maintenance, freezer maintenance, and cold storage maintenance. Formal Shanghai Refrigeration Equipment Maintenance Company.

Cold storage is a warehouse that uses cooling facilities to create suitable humidity and low temperature conditions. Also known as a refrigerator. It is a place for processing and storing products. It can get rid of the impact of climate and extend the shelf life of various products to regulate market supply.

A cold storage is a building that uses a method of artificial refrigeration to allow a fixed space to reach a prescribed temperature and is convenient for storing items. Cold storage can be widely used in food factories, dairy factories, pharmaceutical factories, chemical plants, fruit and vegetable warehouses, poultry and egg warehouses, hotels, hotels, supermarkets, hospitals, blood stations, troops, laboratories, etc. Cold storage is mainly used for the constant temperature storage of food, dairy products, meat, aquatic products, poultry, fruits and vegetables, cold drinks, flowers, green plants, tea, pharmaceuticals, chemical materials, electronic instruments, etc.

Cold storage repair content:

1. There is no electricity on the distribution box or the display does not show.

Please check whether the special gate of the cold storage fails. (Check the power and distribution box)

2. The cold storage is not refrigerated or the cooling effect is poor.

Check that the condenser of the refrigerator is dirty. Check if there is too much frost on the evaporator in the library. Check for refrigerant leakage (coat soapy water on the joints of the pipes, bubbles are generated to indicate refrigerant leakage). And ask professionals to replenish the refrigerant and handle leaks. Check whether the seal of the refrigerator door is intact and remove it. Check whether the refrigerator of the cold storage is working. Check whether the parameter setting of the computer controller of the cold storage is correct and readjust. Check the controller of the cold storage for failure and replace it. Check whether there is sufficient clearance for the items stacked in the warehouse and clear it.

3. There is abnormal noise when the machine is running.

Please stop and check if it is caused by vibration or mechanical failure. There is abnormal noise in the distribution box. This is the sound from the AC contactor. It is due to the inflexibility of the moving parts of the contactor. After the power is turned off, press the iron of the contactor back and forth to eliminate the noise.

4, the refrigerator starts frequently or does not start for a long time or does not stop for a long time or the machine is stopped before the temperature is not reached.

1)检查冷凝器上是否有污物,散热不好会导致制冷机冷凝压力过高,为了保护压缩机,在压力控制器的作用下机器停止运转,等到散热良好后,按一下压控器上黑色复位按扭,机器即可自动恢复运行; ( 1) Check whether there is dirt on the condenser. Poor heat dissipation will cause the condensation pressure of the refrigerator to be too high. In order to protect the compressor, the machine will stop running under the action of the pressure controller. After the heat dissipation is good, click the pressure controller. Press the black reset button and the machine will automatically resume operation;

2)控制器的参数设定有误,重新设定即可; ( 2) The parameter setting of the controller is wrong, just reset it;

3)制冷不好,请参考故障2; ( 3) Refrigeration is not good, please refer to fault 2;

4)温控失灵; ( 4) Temperature control fails;

5)电器损坏。 ( 5) The electrical appliance is damaged.

5. After closing, the cold storage power distribution box does not respond, and the three-phase power is normal.

220V 电压。 Please check the neutral line for 220V. The components of the cold storage (various valves and controllers) have been set, and there are no parts that the user needs to adjust.

6. The lighting in the library is not on.

Please check if the switch fails and the lamp is damaged. Cut off the power during the inspection, and pay attention to the waterproofness of the lamp when installing the lamp cover.

7. When the ambient temperature is too high, after the refrigerator runs for a period of time, the storage temperature does not reach the set value and the refrigerator stops in advance.

This is because the condensing pressure of the refrigerator is too high due to the rise in ambient temperature. In order to protect the compressor, the machine stops operating under the action of the pressure controller. After the heat dissipation is good, press the black reset button on the pressure controller, and the machine is Can automatically resume operation. And check if the water condenser dissipates heat well. Do not adjust the set value on the pressure controller arbitrarily, otherwise the pressure controller will not be able to protect the refrigerator.

8. The refrigerator door is not closed tightly.

Please adjust the hinge on the door of the library and the space between the door lock and the library.

Cold storage repair and maintenance system program:

:要经常观察压缩机的油面及回油情况及油的清洁度冷库安装,发现油脏或油面下降要及时解决,以免造成润滑不良。 1. Running the unit : Observe the oil level and oil return of the compressor and the cleanliness of the oil in the cold storage installation, and find that the oil is dirty or the oil level has to be resolved in time to avoid causing poor lubrication.

:?要经常清扫风冷器使其保持良好的换热状态。 2. For air-cooled units :? Always clean the air-cooler to maintain a good heat exchange state. For water-cooled units: Always check the turbidity of the cooling water. If the cooling water is too dirty, replace it. Check the water supply system for bubbles, drips, drips and leaks. Whether the pump works normally, whether the valve switch is effective, whether the cooling tower and fan are normal. For cold air units: Frequently check the condenser for scale problems, and remove the scale in time.

3. For the evaporator of the air-cooled machine: always check the defrosting situation, and whether the installation of the cold storage defrosting is effective in a timely manner will affect the refrigeration effect and cause the liquid return of the refrigeration system.

4. Observe the operating status of the compressor frequently and check its exhaust temperature. When operating in different seasons, pay special attention to the operating status of the system and adjust the system's liquid supply and condensation temperature in time.

5. Listen carefully to the operating sound of the compressor, cooling tower, water pump or condenser fan. If any abnormality is found, deal with it in a timely manner. At the same time, check the vibration of the compressor, exhaust pipe and foundation feet.

30天后要更换一次冷冻油和干燥过滤器,在运行半年之后再更换一次(要根据实际情况而定)。 6, the maintenance of the compressor: the initial cleanliness of the system is poor, after 30 days of operation, the refrigeration oil and drying filter should be replaced once, and replaced after half a year of operation (depending on the actual situation). For systems with high cleanliness, the refrigeration oil and drying filter should be replaced once after half a year of operation. The price of the cold storage will depend on the situation later.

:要经常观察压缩机的油面及回油情况及油的清洁度,发现油脏或油面下降要及时解决,以免造成润滑不良。 7. Running the unit : Observe the oil level and oil return of the compressor and the cleanliness of the oil frequently, and find that the oil is dirty or the oil level has to be resolved in time to avoid causing poor lubrication.

:?要经常清扫风冷器使其保持良好的换热状态。 8. For air-cooled units :? Always clean the air-cooler to maintain a good heat exchange state. For water-cooled units: Always check the turbidity of the cooling water. If the cooling water is too dirty, replace it. Check the water supply system for bubbles, drips, drips and leaks. Whether the pump works normally, whether the valve switch is effective, whether the cooling tower and fan are normal. For cold air units: Frequently check the condenser for scale problems, and remove the scale in time.

9. For the evaporator of the air-cooled machine: always check the defrosting condition. Whether the defrost of the cold storage repair is timely and effective will affect the refrigeration effect and cause the liquid return of the refrigeration system.

10. Frequently observe the operating status of the compressor and check its exhaust temperature. When operating in different seasons, pay special attention to the operating status of the system and adjust the system's liquid supply and condensation temperature in a timely manner.

11. Listen carefully to the operating sounds of the compressor, cooling tower, water pump or condenser fan, repair the cold storage in time to find any abnormalities, and check the vibration of the compressor, exhaust pipe and foundation.

30天后要更换一次冷冻油和干燥过滤器,冷库咨询在运行半年之后再更换一次(要根据实际情况而定)。 12, the maintenance of the compressor: the initial cleanliness of the system is poor. After 30 days of operation, the refrigeration oil and drying filter should be replaced once, and the cold storage consultation should be replaced again after half a year of operation (depending on the actual situation). For systems with high cleanliness, the refrigeration oil and drying filter should be replaced once after half a year of operation, depending on the situation later.