Defrost In Refrigerator - Yamato IN602CS Instruction Manual

Defrost in Refrigerator

Much frost on the evaporator degrades the refrigeration capability, which may cause uncontrollability of
setting temperature. In the IN602CS, the condition of frost on the evaporator can be checked through
the frost inspection window inside furnace.
conditions.
1) Temperature used･･････････････Easily frosted when using the unit in low temperature
2) External temperature/humidity･･･Easily frosted when external temperature/humidity is higher
3) Sample in furnace･･････････････Easily frosted when sample contains much water
The following operations can be set to take measure against frosting in the IN602CS. Set either of them
depending on the situation.
pressing the DEFROST key on the operation panel, in addition to the program operation.
Manual defrost operation (ma
①
Perform the defrost operation if much frost is in the evaporator. Temperature control is suspended in
addition to stop of heater and blast fan during operation. The operation is started manually and
stopped automatically with the built-in timer after 5-minute operation.
→Refer to the page 45 for the operating instructions.
Cycle defrost operation (Automatic start/stop):
②
Set the cycle defrost operation to operate the unit effectively for long term. The unit can repeat the
defrost operation and operation stop automatically at specified interval specified previously. Frost
can be usually removed to perform the cycle defrost operation for ten minutes in a day. The amount
of frost varies depending on the conditions. Set it appropriately. Temperature control is suspended in
addition to stop of heater and blast fan during operation.
→Refer to the page 46 for the operating instructions.
CAUTION!
• The temperature in furnace increases about 3
samples. The indicated temperature may increase more than 10
Setting of refrigeration operation mode in refrigerator (continuous/cycle):
③
Generation of frost can be reduced by setting the cycle operation where the refrigerator repeats
operation and halt.
continuous operation, cycle operation or halt condition. The refrigerator repeats 12-minute operation
and 12-minute halt condition in the cycle operation. If the setting temperature is 10
switches automatically to the continuous operation related to the refrigeration capacity.
refrigerator does not work regardless of setting temperature if it is set to be stopped. Set the
continuous operation when considering the accuracy of temperature control important, and set the
cycle operation when reducing the mount of frost at long term operation (the accuracy of temperature
control lower than that in the continuous operation).
samples from drying. Set the refrigerator stop if it is not necessary to be operated (it automatically
stops if the setting temperature is 44
→Refer to the page 48 for the operating instructions.
CAUTION!
• The frosting amount varies depending on the conditions in use even the cycle operation is set. It may
be larger when operating the refrigerator for long term.
performing the defrost operation or cycle defrost operation.
The frosting speed varies depending on the following
The fixed temperature and program operation are available there by
nual start/automatic stop):
The refrigerator operation mode has a function to set the refrigerator to
or above).
℃
Before Using this unit
at the defrost operation. Be careful if it affects the
℃
at that time.
℃
The cycle operation can also prevent the
In this case, defrost the refrigerator by
9
or below, it
℃
The