Inner wall defrosting
Frosting may cause a gap between the ULT freezer and the door sealing
strip, resulting in poor refrigeration. The inner door shall be defrosted with an
ice shovel attached to the ULT freezer. The following steps are natural de-
frosting.
1. Shut down the auxiliary cooling device if any.
2. Remove items from the ULT freezer and transfer them to an envi-
ronment suitable for storage.
3. Turn off the power switch
4. Open the outer and inner doors to allow the ULT freezer to open
naturally for a period of time for defrosting.
5. Dry the accumulated water at the bottom of the ULT freezer with a
piece of dry cloth.
6. After cleaning the ULT freezer and inner door, restart the ULT freez-
er.
7. Put the items back into the fully cooled ULT freezer.
8. If there is an auxiliary cooling device, restart the device.
CAUTION Do not use knife, screwdriver or any other tool with a sharp
edge to defrost.
Equipment shutdown
Shutdown: If the ULT freezer is not used in an unsupervised area
for a long period, ensure that children do not have access to the
ULT freezer and that doors cannot be closed completely.
Scrapping: The scrapping disposal of the ULT freezer shall be carried out by
corresponding professionals. In order to prevent something like
suffocation, the ULT freezer doors must be removed.
Optional Accessories
Temperature recorder
Please refer to the Temperature Recorder Instructions provided by the tem-
perature recorder for use.
CAUTION Please install the temperature recorder by professional
technicians or after-sales personnel.
WARNING
Please cut off the power supply before installing the tem-
occur.
Freezer racks and cryo boxes
When the ULT freezer stores small specifcations of materials, freezer racks
and cryo boxes can make more effcient use of space. The height of the racks
may need to be properly adjusted.
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