Heating or air-conditioning device for automobile has manual operating device used for controlling voltage supplied to electric fan motor via electromechanical voltage setting device

摘要

The heating or air-conditioning device has an electric fan motor (1), supplied with a variable operating voltage under control of a manual operating device (2) with a power setting selection switch (3), coupled via a signal line (5) to an electromechanical voltage setting device (6), e.g. an electric setting motor (11) operating a resistance switch (8) with a combination of serial and/or parallel resistances (9).