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hvac - Can I wire a smoke detector so that it disables my furnace if smoke is present? - Home Improvement Stack Exchange
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Amazon.com: Functional Devices RIB2421B Power Relay, 20 Amp SPDT, 24 Vac/dc/120 Vac/208-277 Vac Coil, NEMA 1 Housing : Industrial & Scientific
One of the most important safety features of any technology space is the Emergency Power Off circuitry more commonly known as
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