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it provides an essential layer of protection for the heat exchanger and venting system
Durable brass construction offers long-term resistance to thermal stress and corrosion in the burner box environment
then apply an additional 1/4 turn with a wrench
or if the ohm reading indicates an open circuit
A common symptom is the furnace blower running continuously while the burners fail to ignite
Johnson Controls P100AP-4 Pressure Control it provides an essential layerThe Johnson Controls P100AP 4 is a heavy duty encapsulated pressure control engineered for precision in condenser fan cycling and low pressure cutout applications. This direct mount pressure switch features a single pole single throw (SPST) configuration designed to open on pressure drop, ensuring reliable system cycling. Pre calibrated for professional HVACR environments, the unit is set to open at 170 PSIG and close at 250 PSIG with an automatic
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