| This pressure switch has 3 functions: |
| 1. Switches the radiator fan up to the next speed setting in the event of a pressure increase (approx. 16 bar) in the refrigerant circuit. |
| 2. Switches off the air conditioner in the event of excessive pressure (approx. 32 bar) caused for example by inadequate engine cooling. |
| 3. Switches off the air conditioner in the event of insufficient pressure (approx. 2 bar) caused for example by a loss of refrigerant. |
Note | The air conditioning system pressure switch -F129- replaces the high-pressure switch for air conditioning system -F23-, the low-pressure switch for air conditioning system -F73- and the high-pressure switch for magnetic clutch -F118-. |
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