Johnson Controls S66AA-1 Control Freon this sensor accurately detects the

this sensor accurately detects the burner flame to maintain combustion safety and fuel efficiency

ensuring correct resistance and switching logic

the HN61KK324 is the identical part and can be used interchangeably in all specified applications

While cleaning with a light abrasive can temporarily restore signal

Johnson Controls S66AA-1 Control Freon this sensor accurately detects theThe Johnson Controls S66AA 1 is a professional grade electronic fan speed control designed for modulating condenser fan motors in HVACR systems. This motor controller operates on a multi tap voltage range of 120 277 Vac and accepts a 1 10 Vdc input signal or 20 30 Vac low voltage input to precisely manage head pressure. A critical field proven feature is the integrated hard start feature, which ensures the motor overcomes initial inertia by delivering