Refrigerant pressure sensor, function - GF83.40-P-2126-01I

Function 

The refrigerant pressure sensor measures the refrigerant pressure and transfers the value measured to the automatic A/C pushbutton control module via the left signal-acquisition and actuation module and the CAN bus. This value is compared with a stored temperature/ pressure curve. The refrigerant pressure sensor operates within the range of 0 to 35 bar.

Switching off the A/C compressor 

The A/C compressor is switched off at the following values.

• Refrigerant pressure < 1.75 bar = A/C compressor off
• Refrigerant pressure > 30 bar = A/C compressor off

Switching on the electric engine/A/C electric fan 

The engine/A/C electric fan is switched on at the following values:

• Refrigerant pressure < 12 bar = fan off
• Refrigerant pressure > 20 bar = fan on (100%)
• Refrigerant pressure 12 bar to 20 bar = Infinite linear increase in fan speed (40-100%)