Lennox 42W30 TXV 320720-756 Whether you are performing a

Whether you are performing a routine overhaul or emergency service

The ZG-AFB is specifically optimized for the newer AFB and NFB versions

verify your application parameters before installation

though reusing the existing hardware is common practice if it remains in good condition

Lennox 42W30 TXV 320720-756 Whether you are performing aEnsure precise refrigerant metering with the Lennox 42W30 TXV, a high performance 4 ton thermostatic expansion valve designed specifically for R410A systems. This OEM replacement (part number 100679 16) features 3 8" x 1 2" ODF brazed connections, providing a robust, leak resistant interface for standard liquid and suction lines. Engineered for high efficiency cooling, the 42W30 maintains the ideal superheat across the evaporator coil, preventing