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After the business is over, users often turn off the power of the freezer to save power. In other words, in order to save energy, in fact, it will consume more electricity when it is opened the next day. Not only need to wait for restarting the freezer, let it run for a period of time before cooling, this can increase the probability of the freezer failure, so we must know the normal operation time and cooling time of the freezer. (1) The freezer is operated for a period of time, and the operation starts after 4-5 minutes. The evaporator frost is good. This situation is basically normal. Because of freezer regulations, the downtime per hour is not determined. It is generally believed that 2-6 downtimes are normal. The above situation is normal, but somewhat more. By installing a plastic tube in the thermoreatic capillary temperature detection section, a thermal resistance can be added, and the situation is improved. If the air curtain cabinet freezes faster, you can remove the temperature regulator and adjust the upper limit of temperature control. Supermarket freezer
(2) After the freezer runs, it will stop for a few seconds to tens of seconds, and it will start after a few minutes, that is, it will stop by itself, repeat the work, and run frequently. And the freezer cannot cool. Most of this state is caused by partial damage caused by winding insulation, which guides to short circuit in turning, but it has not reached the extent of fuse breaking. Secondly, mechanical defects and wear of the cooperation surface, increased compressor power and increased current. When the current exceeds the promised value, the starting relay cannot be unlocked normally after being absorbed. The induced current is more than 5 times larger than the normal operating current. The thermal maintenance relay actively maintains the circuit breaker for about 10 seconds, reactivates after a few minutes, and often starts. In addition to ice blockage and refrigerant leakage, the problem should be dirty blockages. During repair, the wool sewing tube is cut into 5-10em, and then nitrogen or freon steam is charged in the compressor to ensure that they are comfortable. If it is not comfortable, the capillary needs to be replaced. The replacement capillary should be as close as possible to the original tube standard, length. The refrigerant leakage problem of the supermarket freezer can be cooled if it is not completely leaked. But the effect is very poor, the evaporator is only partially frosted or frozen, and the condenser is a bit warm. Freezer After understanding the principle of opening and closing the refrigerator, how much do the businessmen know about the refrigerator? Now we are only talking about refrigerators. In fact, the principles of other commercial refrigerators are also similar, so we should not lose more power for temporary power pursuits. It is also a very troublesome thing for refrigerators, because refrigeration In time, many things will be delayed, so it is necessary to use the refrigerator objectively.
