Do you have a question about the CBE V12E/P292 and is the answer not in the manual?
Adjusts the temperature for regulating fan speed.
Allows selection between manual and automatic fan speed operation modes.
Indicates fan status: powered, reduced speed, or full speed.
Respect voltage, polarity, and use fused, appropriate gauge wiring.
Install fan in upper grille for air circulation; use box bottom as template for control panel.
Properly separate and recycle waste electrical and electronic equipment.