York S1-025-39911-000 Expansion Valve 340155-7026 Enhanced System Logic: Manages blower

Enhanced System Logic: Manages blower motor performance and timing to optimize airflow efficiency across various heating and cooling stages

For high-temperature or high-pressure applications

or furnace rollout switch trips

also identified as the Model STAS489T

York S1-025-39911-000 Expansion Valve 340155-7026 Enhanced System Logic: Manages blowerThe York S1 025 39911 000 Expansion Valve is a precise OEM thermostatic metering device designed for 3 ton R 22 refrigeration systems. This thermostatic expansion valve (TXV) utilizes a 3 8" x 3 8" connection and features a 30 inch capillary tube to ensure accurate superheat regulation across varying thermal loads. As a direct OEM replacement part, it maintains factory spec refrigerant flow, preventing liquid slugging and evaporator starving. For