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Wiring steam boiler

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chuck172
chuck172 Member Posts: 90
What is the proper way to wire a McDonnell Miller LWCO with a #11 switch and a Honeywell pressuretrol. The primary is a Beckett R7184.

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  • Tim_Hodgson
    Tim_Hodgson Member Posts: 60
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    I'm concerned

    since I have many students that confuse series and parallel circuits when they are first starting out. This mistake can cause deadly situations. To answer your question, all limit controls are wired in series. All control switches must be closed before the burner will start and any one control can stop the burner.

    I would suggest that a qualified contractor should do the wiring and check-out for you.

    Tim
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