While a technician might momentarily bypass for diagnostics

the York furnace rollout switch is factory-calibrated with a 225°F open point to immediately break the heating circuit upon detecting excessive heat

For contractors managing HVAC building automation systems

ductwork joints

using an OEM Armstrong A22182-1 part is essential to maintain vessel design integrity

York S1-025-28670-003 Limit Switch While a technician might momentarilyThe York S1 025 28670 003 Limit Switch is a critical safety component designed for precise thermal monitoring within York gas furnaces and residential air handlers. This automatic reset limit switch is engineered to operate within a specific 90 110F temperature range, ensuring the heat exchanger and plenum do not exceed safe operating parameters. When the sensed temperature hits the upper threshold, the internal bimetal disc opens the circuit to the