The appearance or components of the appliance may differ from model to model.
You can lower the temperature by turning the controller to the right and raise the temperature by turning the controller to the left.
The temperature can be adjusted from level 1 to level 8. Level 5 is recommended.
Setting the controller at 6 - 8 level will maintain a low temperature in the freezer.

The temperature can be adjusted from level 1 to level 8. Level 3 is recommended.
Setting the controller at level 6 - 8 will maintain a low temperature in the freezer. When the quick freezing is finished (level 8), set the controller to the recommended level.

Wait until 2 or 3 hours have passed after connecting the appliance to the outlet before storing food in the appliance.
The internal temperatures could be affected by the location of the appliance, the ambient temperature, the frequency of door opening and so on.