Lennox 12J43 TXV 321702-401 Staggers electrical load to prevent

Staggers electrical load to prevent residential power surges during heating cycles

maintaining a standard European mounting footprint for straightforward field replacement

this kit provides a drop-in solution to resolve common issues such as hard-starting or frequent overload tripping

you can convert it to a two-pipe system by installing the internal bypass plug (typically 1/16") in the return port

it is compatible with many Nortek Global HVAC brands

Lennox 12J43 TXV 321702-401 Staggers electrical load to preventThe Lennox 12J43 Thermal Expansion Valve (TXV) is a critical metering component engineered specifically for 2 ton residential and commercial R410A refrigerant systems. This OEM Lennox expansion valve features a 3 8" ODM (Outside Diameter Male) inlet and a 1 2" ODF (Outside Diameter Female) outlet, ensuring a precise fit for outdoor NXT units and matching indoor coils. By continuously monitoring evaporator superheat, the 12J43 TXV regulates refrigerant