AC Wiring help | FerrariChat

AC Wiring help

Discussion in '206/246' started by omgjon, Aug 1, 2013.

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  1. omgjon

    omgjon F1 Rookie
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    Jon Gunderson
    #1 omgjon, Aug 1, 2013
    Last edited by a moderator: Sep 7, 2017
  2. Ferraripilot

    Ferraripilot F1 World Champ
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    Hmm, that is the low pressure switch and if it's similar to the early 308 schematic, then those should go to the fuse box. I will check this evening.
     
  3. Ferraripilot

    Ferraripilot F1 World Champ
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    OK, I think one goes to the a/c relay and the other goes to the high pressure switch. More later when I can dive into the bay and get a good look.
     
  4. Ferraripilot

    Ferraripilot F1 World Champ
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    One of the wires goes to the high pressure switch (also has only two wires), and the other goes to the right radiator fan relay 86 terminal
     
  5. synchro

    synchro F1 Veteran

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    #5 synchro, Aug 5, 2013
    Last edited by a moderator: Sep 7, 2017
    It is the low pressure sensor and disables the clutch to prevent constant run of the compressor when Freon is low as that can burn the compressor out.

    I'm 1000 miles from my wiring bundle so I'm recalling from memory but I believe the 308 is different and the Dino does not have an AC connection to the radiator fan and the downstream ground occurs at the compressor clutch.

    Don't you also have a thermistor on the other side of that sensor?
    Here is my system
    Image Unavailable, Please Login
     
  6. omgjon

    omgjon F1 Rookie
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    #6 omgjon, Aug 5, 2013
    Last edited by a moderator: Sep 7, 2017
  7. Ferraripilot

    Ferraripilot F1 World Champ
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    glad you found that. So I see one wire indeed goes to the high pressure switch and does the other go to the right fan relay, or??? I looked at a 365 Boxer diagram and it also goes to the right fan relay.... thanks Jon
     
  8. synchro

    synchro F1 Veteran

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    The low pressure sensor prevents A/C compressor run on which can cause it to fail. The temperature sensor prevents freeze up. They're in series because it is a ground activated magnetic compressor clutch
     

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