330GTC AC wiring | FerrariChat

330GTC AC wiring

Discussion in 'Vintage (thru 365 GTC4)' started by v.vieira, Oct 8, 2024.

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  1. v.vieira

    v.vieira Rookie

    May 21, 2024
    5
    Portugal
    Hello.

    I'm dealing with a 330GTC and I need the wiring diagram for the AC switches.

    Can anyone help me with this?

    Many thanks!
     
  2. TTR

    TTR F1 Veteran
    Rossa Subscribed

    Mar 29, 2007
    5,762
    Riverside, CA
    Full Name:
    Timo
    The copy of a 1978 English translation by A. Wallace of 330 GTC/GTS Shop Manual, i.e "Assembly Data And Repair Instructions", I have has a wiring diagram featuring some of the A/C related details, but having never worked on such in a 330, I don't know how accurate and/or complete.
    I know all four different factory drawn/supplied wiring diagrams I have for 365 GTB/4's are far from either.

    I highly recommend obtaining a copy (reprint ?) of the aforementioned Shop Manual and believe most of the established/independent Ferrari parts suppliers have them available or can get you one (reprint) for couple of hundred Euros or less.
     
  3. 330gt

    330gt Formula 3

    Nov 12, 2004
    2,077
    Seattle, WA
    Full Name:
    Kerry Chesbro
    Here's the diagram from the owner's manual:
    Image Unavailable, Please Login
    Just follow the dashed wiring from the compressor, #23, lower left.
    It's pretty simple, power to the dashboard controls. Then to the compressor and to a relay that turns on the right fan when the A/C is running, even when the radiator is cool.
     
    turbo-joe likes this.
  4. fasthound

    fasthound Formula Junior
    Rossa Subscribed

    Nov 23, 2003
    667
    Maryland
    Full Name:
    Kevin
    readplays likes this.
  5. BMWairhead

    BMWairhead Formula 3

    Sep 11, 2009
    1,053
    Portland, OR
    Full Name:
    Ted
    Wow. Anything is better than nothing... but that sure isn't the German quality diagrams and (especially) keys I'm used to.
     
    Sergio Tavares likes this.
  6. Sergio Tavares

    Sergio Tavares Formula 3

    Nov 15, 2018
    1,218
    Full Name:
    Sergio Tavares
    From video
    Ferrari AC systems are this seriel chain;
    from battery- fuse box- fan switch- therme switch- low pressure switch- high peressure switch - clutch
    Inspect for 12V at each point along this chain
    .
    .

     
  7. Bertocchi

    Bertocchi Formula 3
    Consultant

    Jan 28, 2004
    2,300
    Austin, Texas
    Full Name:
    David Castelhano
    The relays for the system are all Lucas manufactured. I buy them from Jaguar parts suppliers and believe the schematic may list the Lucas part numbers.
    So many systems have been altered by “hack” mechanics.
    DM me if you need specific help. I recently completely rebuilt one for a 365 GTC including the fabrication of a front wire harness.
     
    readplays likes this.
  8. v.vieira

    v.vieira Rookie

    May 21, 2024
    5
    Portugal
    Thanks!

    I already had this electrical diagram, what I needed was the switch and thermostat connections that are omitted in the diagram. However, I managed to connect everything.
     

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