GF83.40-P-2171-01R Refrigerant Pressure and Temperature Sensor, Function

GF83.40-P-2171-01R Refrigerant Pressure And Temperature Sensor, Function
- with CODE (581) Automatic air conditioning


Recording of refrigerant pressure
The refrigerant pressure and temperature sensor (B12/2) records the refrigerant pressure and routes the determined value via the CAN data bus to the AAC pushbutton control module (N22). This value is compared with a filed temperature pressure curve. The refrigerant pressure and temperature sensor operates in a pressure range of 0 to 35 bar.

Shutting of the refrigerant compressor (A9)
The refrigerant compressor is switched off at the following values.
^ Refrigerant pressure < 1.75 bar = refrigerant compressor OFF
^ Refrigerant pressure > 30 bar = refrigerant compressor OFF

Switching on the refrigerant compressor (A9)
The refrigerant compressor is switched on at the following values:

^ Refrigerant pressure> 2.25 bar = refrigerant compressor ON

Refrigerant temperature recording
The refrigerant pressure and temperature sensor (B12/2) records the refrigerant temperature and sends the determined value via the CAN data bus to the AAC pushbutton control module (N22). This value is compared with a filed temperature curve pressure and thus the refrigerant level measured.
When the refrigerant level is too low the refrigerant compressor (A9) is switched off by the AAC pushbutton control module (N22) via the CAN data bus. The AC OFF mode is activated and cannot be exited again. The system is only operational again after rectification of the fault and deletion of the DTC memory in the AAC pushbutton control module (N22).

The refrigerant pressure and temperature sensor (B12/2) operates in a temperature range of -10 °C to +100 °C.