The Carrier 331709-759 Expansion Valve Kit is a critical OEM replacement part designed for precision refrigerant metering in residential and light commercial cooling systems

If the motor is cycling on internal thermal overload

Corrosion Resistance: High-grade stainless steel construction prevents premature failure caused by oxidation and moisture

Technical specifications such as the PSC motor design and robust housing make it a standard choice for contractors servicing ICP

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AERCO 61026 Sensor 319852-301 The Carrier 331709-759 Expansion ValveThe AERCO 61026 O2 Sensor is a critical component for maintaining peak performance in high efficiency commercial boiler systems and water heaters. Engineered for precision, this oxygen sensor monitors exhaust gas concentrations to provide real time feedback to the combustion control system. By accurately measuring O2 levels, it allows for the fine tuning of the fuel to air ratio, which significantly improves fuel efficiency and reduces carbon