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The York S1-025-37423-240 Heater is a high-performance OEM replacement part designed for precision thermal management within light commercial and industrial HVAC systems
avoiding the hunt-and-surge issues common with generic aftermarket alternatives
This veteran-grade module features a 30-second pre-purge cycle to clear the combustion chamber of residual gases prior to ignition
the 904561 is standard for several high-efficiency Nordyne-produced furnaces
Daikin-McQuay TX3N4 TXV 340793-762 The York S1-025-37423-240 Heater isThe Daikin McQuay TX3N4 TXV is a thermostatic expansion valve service component designed for R 410A HVAC systems. The TX3N4 is identified as a 3 ton non bleed R 410A TXV kit, with applications commonly covering the 2. 5 to 3 ton capacity range. The valve regulates liquid refrigerant flow into the evaporator according to system operating conditions. Proper refrigerant metering helps maintain the required evaporator superheat and supports efficient heat