Cold storage evaporator frost uneven
If the number of freezer doors switch frequent, resulting in large amount of external gas into the evaporator frost situation will be more serious, if the defrost is not enough or defrost the end of the fixed sensor position is not appropriate, the cream can not be completely removed
Therefore, when installing the evaporator, follow the distance specified by the evaporator manufacturer (usually at least the length of the fan leaf diameter), as shown in Figure "Evaporator suction surface from the library too close to the situation shown" shown.
This situation in the run, the lower loop due to heat exchange capacity, high heat, once the block after the heat caused by small heat, resulting in system instability.
There is also a situation that is the evaporator suction surface from the library too close, resulting in the evaporator into the air more concentrated in the bottom of the evaporator, so most of the focus here.