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Steam Boiler Interlocking Control
Bob L_3
Member Posts: 15
Does anyone have a wiring diagram for a old style interlocking relay. I haven't installed one in many years. To be clear in case I'm not accurate on it's naming, it with a time clock, fan center and strap on aquastat. I believe it should engage the boiler only when the time clock and the return line aquastat call and continue to run the boiler until i goes off on pressuretrol only.
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