This functional description covers the blower and blower ballast resistor of the IHS and IHKS.
Index |
Explanation |
1 |
Air-volume control wheel |
The blower speed is set by turning the air-volume control wheel.
The blower creates the necessary air-mass flow. The blower is fitted after the fresh air recirculated-air flap in the heater/air conditioning system (pushing blower arrangement).
The blower speed is set by turning the air-volume control wheel. The blower ballast resistor enables a 4-stage adjustment of the blower. Depending on the setting, a number of resistor coils of the line resistor in are activated in line to reduce the voltage at the blower motor. There is no integrated dynamic-pressure compensation on the IHS/ IHKS. This means that the compensation must be made manually by adjusting the blower output.
The blower ballast resistor is not self-diagnosable.
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