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  1. #1
    Join Date
    Jan 2002
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    I am installing a Nortec Resdelux steam humidifier. The instructions indicate that the humidifier, humidistat and high limit humidistat is wired to a DPDT AUX fan relay 24VAC, coil with two normally open contacts. This aux relay is then wired in parallel to the normal fan relay. I have a Carrier 58MVP furnace.

    Does anyone know where the normal fan relay cantacts are located in the furnace?

  2. #2
    Join Date
    Oct 2005
    Fairfax, VA
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    Doesn't that unit have "HUM" terminals on the board? You could always use a current-sensing relay on a fan wire, controlling a dpdt contactor if nothing else is readily available.
    The wiring diagram will show the fan contacts.

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