Automatic motor speed controllers enable operation in following modes:

• Manual mode: in which motor speed of the controlled device is constant – user may set one of ten different speed values.
• Automatic mode: in which motor speed of the controlled device depends on temperature detected by the analogue KTY84 thermal probe (an external element, included in the set, which may be placed f.e. in the fireplace hood).

Controller is compatible with AN1, 2, 3