A carburetor arrangement is provided for an internal combustion engine of a manually guided implement, and includes a carburetor that is embodied in particular as a diaphragm carburetor. The lens unit is rotatably attached with an adjuster. The stored operation explanation data defines operations of functions executed in the air conditioner. The spiral heat transmission pipes with different radii are concentrically and spirally arranged in an annular space between the central cylinder and the sleeve, to form one or more concentric heat exchanging pillar surfaces. For a selected lifecycle state of each FSM, the associated business rule defines a condition causing a transition from the selected lifecycle state to a next lifecycle state of the FSM.