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How do you calibrate the setpoint on the AFS-460-121
this 025-26366-003 limit switch provides the reliable mechanical switching required to restore furnace airflow management without the risks associated with universal aftermarket components
provided the media temperature remains within the valve's technical specifications
especially in high-static environments
Lennox 71L03 Burner How do you calibrate theAs a veteran contractor, you know that consistent combustion is the backbone of any reliable furnace. The Lennox 71L03 Burner, also identified by part number R20004601, is the OEM Lennox replacement inshot burner engineered for precise gas to air mixing in residential and light commercial heating units. Constructed from heavy duty, corrosion resistant aluminized steel, this main inshot burner is designed to withstand high thermal stress without