GF83.40-S-2169A | Pushbutton control module, location/purpose/design | 18.9.98 |
MODEL 638.094 /194 /294
for A/C pushbutton control module (A20)
Pushbutton control module, location | |||
Pushbutton control module, purpose | |||
Design | The air conditioning pushbutton control module (A20) consists of an integrated electronic circuit (automatic heater or Tempmatic) which regulates the refrigerant circuit and/or the heating circuit. With manual heater the coolant valve is controlled directly by a control cable. The blower motor (M40m45) is controlled using the knurled blower dial (A20s2) in four stages by bridging the preresistors. |