Johnson Controls P100AP-4 Pressure Control Manual Reset Mechanism: Ensures the

Manual Reset Mechanism: Ensures the system cannot auto-restart until a contractor identifies and resolves the specific cause of the rollout

then apply an additional 1/4 turn with a wrench

A common symptom is the furnace blower running continuously while the burners fail to ignite

A veteran tech will tell you to replace the gasket every time the pilot tube or pilot generator is serviced to prevent nuisance service calls related to air leaks or pilot drop-outs

Johnson Controls P100AP-4 Pressure Control Manual Reset Mechanism: Ensures theThe 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