I - Compressor Management Function; Chapter 2 : Operating Principle - CITROEN XSARA Technical Training Manual

I - COMPRESSOR MANAGEMENT FUNCTION
The compressor is controlled by the BSI. It takes into account:
• the compressor engaging request (A/C),
• the icing up safety of the evaporator,
• the air conditioning pressure,
• the engine speed,
• the engine coolant temperature,
• the dialogue with the engine management ECU.
A - COMPRESSOR ENGAGING REQUEST
The request to engage the compressor is sent from the air conditioning control
panel to the compressor control management electronics via the VAN network.
Action
IF condition
AND condition the blower motor is activated
MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 8
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OPERATING PRINCIPLE
the request is taken into account
the engine is running
Chapter 2