| GF83.10-P-2102-02A | Blower, function | |
| Function The control voltage is switched to the blower regulator via the blower switch integrated into the automatic heater (HEAT)/air conditioning (Tempmatic) control module. With AAC the air conditioning (AAC) control module compares the control voltage with a stored curve and switches it to the blower regulator which then actuates the blower. Manual operation is possible in 7 stages. Residual engine heat utilization In the residual engine heat utilization mode the control voltage is switched to the air conditioning (AAC) control module via the REST button (  ).The voltages specified in the table below are maximum values. Different values can be measured when the recirculated air mode is switched on or the filters are clogged. |
The AAC blower control is influenced by the following parameters:  AUTO/manual blower setting
Time characteristics
Control function (EC, defroster, air distribution)
Outdoor temperature
Mode status heating/cooling
Sun intensity (models 210 and 140 only)
Cooling water temperature
Vehicle speed
Position of fresh air/recirculated air flap
Position of activated charcoal filter flap (models 210 and 140 with activated charcoal filter only, code 306a)
Position of diverter flap
Circuit 15/circuit 15x |
| System | Maximum power consumption | Automatic blower stage control | Manual blower stage control |
|---|---|---|---|
| Automatic heater (HEAT) LHS + RHS |
26A | -- | 5 +4 intermediate stages |
| Air conditioning (Tempmatic) LHS RHS |
22A 26A |
-- | 5 +4 intermediate stages |
| Automatic air conditioning (automatic A/C) LHS + RHS |
30A | Infinite | 7 |