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Safety Logic: Monitors flame current and pressure switches to prevent hazardous operating conditions
Constructed with a premium copper heating element sheath and a built-in resistor
Built on a standard 56 Nema Frame Size
Voltage Precision: Optimized 277V/120V conversion reduces fluctuations that can damage sensitive control boards
Technicians should verify the existing orifice size and condition during the swap to ensure proper BTU output and gas manifold pressure
Lennox 25W28 TXV 326058-755 Safety Logic: Monitors flame currentThe Lennox 25W28 TXV is a precision engineered 5 ton thermal expansion valve designed specifically for maintaining optimal refrigerant flow in high capacity residential and commercial HVAC units. As an OEM Lennox replacement part, this valve is critical for technicians troubleshooting evaporator coil freeze ups or hunting issues in older R22 refrigerant systems. The 100679 07 expansion valve regulates the liquid refrigerant entering the evaporator