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Maintenance and maintenance of low temperature freezer

The characteristics of low-temperature refrigerators are that, corresponding to medium-temperature cold water or ordinary refrigerators, the refrigeration boundary is lower. It may be as low as minus tens of degrees Celsius and below minus 100 degrees Celsius. Or Chinese freezing secrets are higher, and in terms of maintenance and shelter, cryogenic freezing secrets are more troublesome.

So in daily use, we should pay attention to protection and maintenance:

1. The air-cooled low-temperature freezer unit should be turned on to see if the fan's direction is correct. If it is turned on, it can be turned on and turned on, it means that the power supply wiring is reversed, and the phase sequence must be changed before starting.

2. The setting values ​​of the various protective devices of the unit have been adjusted by the factory. Users should not change them at will.

3. When the unit has a fault alarm and shutdown, first press the unit's stop button (the alarm light will calm down), and then check the cause of the fault. Do not force the machine to run until the fault is ruled out.

4. If it is not an emergency, do not turn off the unit by blocking the main power supply; if the unit is not used for a long time in the winter, turn off the unit first, then turn off the main power, oil heater and drain the water in the system.

5. Adhere to the outstanding cleanliness and ventilation of the equipment room, and regularly perform cleaning and decontamination of the condenser to ensure the normal and stable operation of the unit.

6, water-cooled low-temperature freezer should adhere to the cooling water tower clean, and adhere to the air circulation around the water tower, the temperature is low, to prevent debris from entering the cooling tower to reduce the cooling efficiency.

7, air-cooled low-temperature freezer please adhere to the surface of the low-temperature freezer cooling coil clean, to ensure the surrounding air circulation, low temperature, regular cleaning of the scale on the coil to ensure outstanding heat exchange effect.

8. If the low temperature freezer has been used for more than six months, or the high / low pressure switch often has problems, or the cooling capacity is reduced, please clean the condenser in time. If the ultra-thin light box is repeatedly repaired in accordance with the above instructions, the low temperature freezer fault alarm still sounds, then it is necessary to ask a professional repair low temperature freezer to repair it.


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