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wood boiler overheat,dumping heat

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mike parnell
mike parnell Member Posts: 42
in Thermostats and Controls
Just install a indoor wood  bolier, in the event of overheat a L4006B closes and activates a second circulator pulling heat and pumping it into two radiant basement slabs,zones 5,6, question is how to wire the zone 5 or 6 pumps to run without firing the  boiler???the L4006B is wired to a sr501 relay at TT, term 6 no and 5 com is now wired to the thermastat for zone 6, but the burner kicks on, any ideas????

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  • Clayton
    Clayton Member Posts: 1
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    bypass relay

    Perhaps you might try wiring the circulator(s) directly to the 4006 rather than using the thermostat contacts.

    If that is impractical try installing a seperate relay that does not make the boiler circuit.



    I assume that 5&6no in the relay for zone 6 is what is making the burner start.



    Are both pumps required to operate? P-S?
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