Lennox 42W39 TXV 322838-752 the integrated output test connection

the integrated output test connection facilitates efficient field adjustments without disrupting the control loop

resulting in insufficient millivolt output

it is also the standard high limit safety for various Bryant and Payne air handlers and furnaces

Reliable Monitoring: Continuously checks the flame signal and high-limit switches to ensure safe daily operation

Lennox 42W39 TXV 322838-752 the integrated output test connectionThe Lennox 42W39 is a high performance 3 ton thermal expansion valve (TXV) engineered for precise refrigerant metering in R410A systems. Designed to replace Lennox part 100679 26, this valve features a 5 8" ODF inlet and a 1 2" ODF outlet, ensuring a secure, leak proof solder connection. For any technician troubleshooting a 3 ton air conditioner or heat pump, this OEM component is critical for maintaining correct superheat levels across varying load