HVAC vacuum system

Discussion in 'The Big Chill' started by Tonino, Apr 26, 2015.

  1. Tonino

    Tonino Member

    Hi All,

    Anyone wondering what that little black vacuum hose connector is doing on the rear of a 68 skaylark htr/vent/ac/rec thumbwheel switch - its
    nothing more than an adaptor that blocks off the #4 port of the switch. If the adaptor rots out, you can go connect the vac. lines
    directly to the rear of the switch provided you make up a suitable block (piece of hose with a plug in it) for the #4 port.

    Regards
    Tonino
     

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