protecting the heat exchanger and surrounding components from excessive thermal exposure

This genuine OEM Lennox part (also referenced as P-8-3577) is designed to manage the high torque requirements of compressor startup by precisely switching the start capacitor out of the circuit

this assembly serves as a direct cross-reference for the Fasco A151 and various ICP part numbers including 116G41 and NRGF series models

Mechanical Calibration: Reliable bimetal coil technology eliminates the need for external power or batteries

Johnson Controls A28AA-28 Temperature Control Freon protecting the heat exchanger andTemperature Control, Two Stage, 2 SPDT Switch Action, 120 208 240 277 Vac, 30 110 Degree Setpoint Range, 3 1 2 Degree Differential Each Stage, 2 7 Degree Adjustable Differential Between Stages, 12' Averaging Bulb, 6' Capillary Length, Screwdriver Range Adjuster