About Defrosting Of The Refrigerator - Yamato INE800 Manual

When a lot of frost is formed on the evaporator of the refrigerator, the freezing capacity may be
degraded and the set temperature may not be maintained. The unit allows frosting on the
evaporator through the frost observation window at the back of the unit. The rate of frosting will differ
depending on the following conditions.
(1)Operating temperature
(2)External temperature and humidity ･･･ Higher external temperature and humidity tend to form
(3)State of specimen in the unit
The unit allows the following operation modes to prevent frosting, one of which shall be set
according to the operating status. The operation modes can be enabled both during the fixed
temperature and the program operations by pressing the defrost key on the controller operation
panel separately from the fixed temperature operation or the program operation.
1 Manual defrost operation (starting of operation is manual and stopping is auto）
When a lot of frost is formed, start defrost operation. While defrosting operation is started
manually, the operation will automatically stop with the internal timer after about five minutes.
→See page 30 for operating procedures.
2 Automatic defrosting operation (both starting and stopping of operation are automatic）
It is effective for long-term operation of the unit to set the cycle defrost that performs defrosting at
the preset time cycle, or time defrosting that performs defrosting at the specified time every day.
Once you have set the defrosting operation and the time to stop, you can repeat star and stop
defrosting operation automatically at the set intervals. In ordinary cases, you can remove frost by
performing defrosting operation for about five minutes a day. However, select an appropriate
setting based on the actual status of frosting, which will defer depending on the actual operating
conditions.
→See page 16 for operating procedures.
Caution
●
Although it depends on the operating conditions, take care for possible influences on
specimen because the temperature in the unit will rise by about 3℃ during a five-minute
defrosting. And the temperature on the display may rise by 10℃ or more in this case.
2. Before operating the unit

About defrosting of the refrigerator

･･･ Operating at a lower temperature tends to form more
frost.
more frost.
･･･ More moisture in the specimen tends to form more frost.
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