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-   -   can a Honeywell RTH8500 replace a Lennox (P)X4147 themostat (https://www.askmehelpdesk.com/showthread.php?t=840954)

  • Sep 19, 2018, 01:31 PM
    CliveE
    can a Honeywell RTH8500 replace a Lennox (P)X4147 themostat
    Can a Honeywell RTH8500 thermostat be used to replace a Lennox (P)X4147 and if so were do I terminate the S1 and S leads on the Honeywell thermostat?

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