N'oveen MULTI LUNCH BOX MLB810 Benutzerhandbuch Seite 18

Then insert the containers into the Lunch Box and close the lid.
3. Plug in the power cord
When connecting the device to the power supply, the switch should be set to 0, do not
connect the device when the switch indicates I (MLB810 model). After connecting the
power supply and turning on the unit in standby mode, the control panel displays "OF".
4. Illustration for how to use the air valve
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Press the "PUSH" button to open the air valve first,
otherwise you cannot take off the container cover.
Insert food and cover the container then close the air
valve.