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-   -   Old Thermostat has only R, new one has RC and RH (https://www.askmehelpdesk.com/showthread.php?t=609752)

  • Nov 5, 2011, 04:13 PM
    CynCB
    Old Thermostat has only R, new one has RC and RH
    Hello,

    Old thermostat had only r connection. New one has rc and rh. Do I connect it to rc, rh or both.
    Thank you

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