Remove the top cover and turn the adjustment dial to the desired "W

streamlining the replacement process for service technicians during field installations

Durable Construction: Built from heavy-duty materials to withstand the thermal expansion and high-RPM demands of Trane blower assemblies

this OEM Laars heating system part restores factory-spec ignition sequencing and safety timings

Lennox 12J37 TXV 319847-401 Remove the top cover andWhen you're out in the field facing a 5 ton residential split system with a collapsed suction pressure or hunting superheat, you need an exact replacement to get the job done right. The Lennox 12J37 TXV is a genuine R 410A thermostatic expansion valve designed specifically for Lennox indoor evaporator coils. Featuring a 3 8" ODM inlet and a 1 2" ODF outlet, this brass body valve ensures precise refrigerant metering across varying load conditions. It