Lennox 12J36 Expansion Valve 320734-701 this genuine Lennox part ensures

this genuine Lennox part ensures the unit operates at its rated AFUE by containing combustion byproducts within the flue path

The integrated overheat protection includes a thermal fuse that serves as a critical safety cutoff to prevent high-limit excursions

Streamlines field installation and reduces labor time for terminal unit applications

This universal kit features a non-linting pilot burner design

Lennox 12J36 Expansion Valve 320734-701 this genuine Lennox part ensuresThe Lennox 12J36 is a 4 ton NXT indoor expansion valve engineered for critical refrigerant metering in high efficiency residential and light commercial evaporator coils. This thermostatic expansion valve (TXV) modulates refrigerant flow by sensing evaporator load conditions, ensuring the system maintains precise superheat levels. By reacting to real time temperature and pressure variables, the 12J36 prevents common failure points such as liquid