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-   -   T90 general control thermostat replacement with new one. (https://www.askmehelpdesk.com/showthread.php?t=608337)

  • Oct 31, 2011, 01:01 PM
    Majormenace
    T90 general control thermostat replacement with new one.
    The T90 thermostat terminal is labeled G,F,C,H,V it is 4 wires in and jumper between G and F. The new one has terminals marked Rh,R c,W,Y,G with a jumper between Rh and R c. Which wire do I connect to which terminal? Thanks Tom M.

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