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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
the durable oval casing meets rigorous 10
as well as the 200 and 201 series
ensuring proper furnace venting and preventing hazardous backdrafts within the heat exchanger assembly
ensuring the coil wattage and contact ratings match factory specifications
York S1-7970-3281/A Limit Switch 319825-402 the durable oval casing meetsThe York S1 7970 3281 A Limit Switch is a critical safety component designed for precise thermal monitoring in residential and light commercial HVAC systems. This high limit cutout switch features a 145F Open (FOP) and 115F Close (FCLS) configuration, ensuring the furnace heat exchanger remains within safe operating parameters. Acting as a normally closed thermal disc, the S1 7970 3281 A interrupts the burner circuit if airflow is restricted or
US$ 80.00
US$ 66.50
US$ 40.00