Welbilt Convotherm 4 - Variable Frequency Drive; Motor; Fan

4 Operating principles
Training manual Convotherm 4 40
4.1 Variable frequency drive / Motor / Fan
Item Name Function
1
Variable frequency drive
A variable frequency drive, which generates from an AC voltage an AC
voltage of variable amplitude and frequency that is used to control motor
speed. It controls the fan motor of the combi steamer.
2
Motor Drives the fan
3
Fan Circulates the air around the cooking chamber
Speeds
Frequency Speeds Level
50 Hz 1500 U/min L5
44 Hz 1320 U/min L4
38 Hz 1140 U/min L3
32 Hz 960 U/min L2
25 Hz 750 U/min L1