Operating with a 208-240V AC coil

always verify your parts list to ensure this is the correct Carrier replacement board for your specific chassis

Common Contractor Questions: Is the X22440B4B cage compatible with non-Alco valve bodies

an "OL" reading indicates a failed

offering the added functionality of a multi-speed fan selector that the previous model lacked

Mueller Industries A17938 Check Valve 30067439-890 Operating with a 208-240V ACThe Mueller Industries A17938 Check Valve is a veteran grade 3 4 Magnetic Check Valve engineered for high performance backflow prevention in commercial refrigeration and HVAC systems. Unlike standard spring loaded designs, this CheckMaster magnetic check valve utilizes a magnetically operated poppet that eliminates the mechanical fatigue often associated with traditional springs. This design ensures a more reliable unidirectional flow with a pressure