310 sensor to verify fan speed

the 33B0006N18 is calibrated to the exact flow coefficients required for the manufacturer’s heat exchangers

While universal controllers exist

this needle probe is the professional standard for "live" field testing through the cover port to ensure accurate sensitivity adjustments

Variable Pitch Versatility: Adjusts from 3

Lennox 12J35 Expansion Valve 30067439-890 310 sensor to verify fanThe 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