Remove the plastic seal and cap from the valve at the top of the Mitte CO₂ Cylinder.
Open the door on the left side of the device.
Insert the cylinder using the built-in guide to assist you (first in then up) and turn the cylinder clockwise until it is screwed in tightly. If you hear CO₂ leaking turn the cylinder a little further until the hissing disappears. The CO₂ notification light will turn off, indicating that the cylinder is installed correctly.
Once installation is completed close the door.