Carrier HK50AA054 Board 318518-761 The Emerson Alco 804490 Temperature

The Emerson Alco 804490 Temperature Sensor is a precision NTC thermistor engineered for high-accuracy thermal sensing in commercial refrigeration and HVAC systems

protecting the compressor from damage

using the correct pneumatic air filter ensures the longevity of the hermetically sealed compressor and heat exchanger by mitigating internal sludge buildup

Smith models

Always verify the valve brand and model number before installation

Carrier HK50AA054 Board 318518-761 The Emerson Alco 804490 TemperatureThe Carrier HK50AA054 Board is a precision engineered integrated furnace control designed for heavy duty service in specific residential furnaces, air handlers, and commercial rooftop units. As a direct fit HVAC circuit board replacement, it functions as the central processor for the unit, managing critical sequences of operation including inducer motor startup, ignition timing, and blower fan speeds. This OEM Carrier control board ensures factory