this model includes a 500-ohm resistor that enables 4-20 mA proportional control when wired across the input terminals

Common Questions What are the symptoms of a failing York limit switch

OEM Compatibility: Replaces common Robertshaw pilot assemblies used across various furnace

Common Questions What does 'Close on Fall' mean for this York switch

When diagnosing pressure switch codes or inducer failures

York 028-12204-000 O-Ring 318820-201 this model includes a 500-ohmThe York 028 12204 000 O Ring is a critical sealing component engineered specifically for high pressure HVACR applications, particularly within York centrifugal chillers and large scale industrial cooling systems. This EPDM o ring features a 5 7 8 inch inside diameter (ID) designed to maintain airtight integrity under rigorous thermal cycling and high refrigerant pressure. As a direct S1 028 12204 000 replacement part, it ensures a precision fit for