|
Bard part 5651-206 is an OEM thermal expansion valve (TXV) with 3/8 inch x 3/8 inch connections, used in Bard wall-mount air conditioners and other Bard HVAC equipment to meter refrigerant into the evaporator coil and maintain proper superheat. When a TXV sticks, leaks, or loses control, you can see symptoms like poor cooling, coil icing, or unstable suction pressure, so replacing it with the correct Bard valve helps restore normal capacity and protect the compressor from floodback or starvation. Because TXVs are refrigerant circuit components, confirm your unit model and refrigerant type in the Bard service literature before ordering, and plan on proper brazing practices, evacuation, and charging procedures during installation.