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The Lennox 13Y19 is an OEM thermostatic expansion valve (TXV) assembly designed for 1.5 to 3 ton HVAC systems. The 13Y19 regulates refrigerant flow into the evaporator for R410A systems, improving charge and load response. Sold as part/model 614045-04, the assembly is intended for service and replacement in heat pumps, air handlers, packaged units, and similar Lennox equipment. Gross weight is listed as 1.65 lb.
OEM Lennox 13Y19 thermostatic expansion valve (TXV) for 1.5-3 ton R410A HVAC systems; replacement assembly 614045-04.
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