There are many reasons for the temperature drop of the high and low temperature alternating humid heat box, which can be considered from several aspects.
First, due to poor air circulation, the heat transfer efficiency is lowered, and the temperature inside the test chamber cannot be lowered. If too many items are placed in the box, the air flow will be affected; the frost on the surface of the evaporator is too thick, so that the cooling capacity cannot be transferred to the box, which affects the cooling effect; the surface of the condenser is too oily and dusty, so that the high temperature gas in the condenser cannot be The heat exchange with the outside air does not fully liquefy, reducing the cooling capacity, resulting in high temperature in the high and low temperature alternating humid heat box. When the contents of the box are placed, there should be some space to ensure the air is unobstructed. Defrost should be performed when the frost layer on the surface of the evaporator is too thick. The surface of the condenser should be cleaned frequently.
Second, if the temperature controller is improperly adjusted, the temperature sensor is mistakenly placed at the inlet of the evaporator, so that the temperature inside the box does not fall to the required value when the temperature controller is operated. The temperature controller and temperature tube position can be adjusted.
Third, the high-low temperature alternating humid heat box refrigeration system leaks or blocks, which reduces the cooling efficiency. At this point, you should first determine whether it is a leak or a blockage. In the case of a leak, the system piping should be checked for leaks and repairs. If it is clogged, the drying filter can be replaced, and if necessary, the pipeline should be purged with nitrogen to remove impurities. Finally, there may be internal compressor failures that reduce operating efficiency and reduce cooling capacity. The compressor casing should be cut for repair.
Dinnerware Sets,Dish Sets,Dinner Plate Sets,Black Dinner Set
Guangzhou Concept Home Ltd , https://www.concepthomelimited.com