Heat exchanger temperature sensor, function - GF83.57-P-2101-01M

Function 

The rear heat exchanger temperature sensors are temperature dependent resistors. The resistance values measured are transferred to the rear A/C pushbutton control module. Here a comparison is made between the values measured (actual values) and the temperatures set on the rear A/C pushbutton control module (left and right separately). From this comparison between the actual values and set values the rear A/C pushbutton control module calculates the opening time for the duovalves and actuates them separately for the left and right side.