Lennox 12J35 Expansion Valve Freon Common Questions: What does the

Common Questions: What does the L180F-40F rating indicate

What is the purpose of the manual service switch

it allows for easy installation in tight control panels and is often cross-referenced with various OEM components

The CCW lead end rotation (Counter-Clockwise) and standard mounting configuration ensure a direct drop-in fit for compatible York multi-speed blower assemblies

It prevents condensate from pooling above the seat

Lennox 12J35 Expansion Valve Freon Common Questions: What does theThe Lennox 12J35 Expansion Valve is a precision engineered NXT thermostatic expansion valve specifically calibrated for HVAC systems in the 3 to 3. 5 ton capacity range. Designed for indoor evaporator coils, this TXV utilizes a responsive sensing bulb to modulate refrigerant flow in real time, maintaining precise static superheat across varying thermal loads. By preventing liquid slugging and evaporator starvation, the 12J35 ensures the compressor