| This pressure switch has 3 functions: |
| 1. Increases the refrigerant liquid fan speed if the refrigerant circuit pressure increases (approx. 16 bars). |
| 2. Switches off air-conditioning when pressure is too high (approx. 32 bars - e.g. resulting from insufficient engine cooling). |
| 3. Switches off air-conditioning when pressure is too low (approx. 2 bars - e.g. resulting from loss of refrigerant). |
Note | The air-conditioner pressure switch -F129- replaces the air-conditioner high pressure switch -F23-, the air-conditioner low pressure switch -F73- and the high pressure switch for the electromagnetic coupling -F118-. |
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