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primary pump question

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Steamhead (in transit)
Steamhead (in transit) Member Posts: 6,688
in THE MAIN WALL
Wire your zone panel to pull in the R845A. One contact in the R845A is fed with line voltage for your circ (I'm assuming this is the usual 120 volts). The other contact is wired to start the boiler. Simple!

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  • joehammes
    joehammes Member Posts: 1


    What's the simplest/best way to power a primary circulator from a multi-zone, multi-circulator system? Need the primary to run when each secondary zone is calling but I can't power it from the boiler.
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