Vibration Dampening: Reduces harmonic resonance and mechanical noise

this 170 degree limit switch provides the precise thermal response required to maintain system integrity and prevent furnace short cycling or overheating

Rated for 25 amps and utilizing a 24VAC coil

By recalibrating the gas valve and burner assembly with the Reznor 99260

As a direct replacement for Lennox 56M22

Carrier HH660027 Defrost Controller 30067439-890 Vibration Dampening: Reduces harmonic resonanceThe Carrier HH660027 Defrost Controller is a high performance direct replacement for 50BB660001, designed specifically for Carrier and Bryant heat pump systems. This HVAC control board manages the critical defrost cycle by monitoring coil temperature and compressor run time to prevent excessive ice accumulation on the evaporator. Engineered for reliability in 208 230V applications, the HH660027 features field selectable time intervals (30, 60, or 90