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Always match the OEM rating for the specific furnace model
maintaining dielectric strength is critical to prevent arcing and ensure a consistent spark
Standardized Wiring: Pre-stripped 8-inch leads use industry-standard color coding (White/Black primary
and thermopile relative to the main burner port
this component functions as a low temperature limit switch or low oil limit thermostat
Armstrong Furnace R100684-04 Pressure Switch Always match the OEM ratingThe Armstrong Furnace R100684 04 Pressure Switch is a critical safety component engineered for precise inducer motor verification and flue gas management. This OEM replacement part is factory calibrated to a . 65"wc set point, ensuring the combustion blower is generating the necessary static pressure before allowing the ignition sequence to proceed. As a SPST (Single Pole Single Throw) switch, it provides a reliable normally open circuit that closes
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