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Common Questions for Technicians
verify you have 120V at the lead during the ignition sequence
It is designed to be threaded directly onto a 1/4 inch flare fitting
As a direct replacement for various 790 series ignition modules
Lennox 97H31 Expansion Valve Els PW 29614 Common Questions for TechniciansThe Lennox 97H31 Expansion Valve is a 3 ton, R 410A compatible thermostatic expansion valve (TXV) engineered for precision refrigerant metering in high efficiency cooling systems. This HVAC expansion valve replacement is essential for maintaining the correct superheat and ensuring the evaporator coil operates at peak thermal efficiency. Designed for compatibility with various Lennox residential air handlers and heat pump evaporators, the 97H31 TXV