York S1-025-29125-000 Terminal Block 319847-401 By maintaining a 1

By maintaining a 1

this venturi air valve ensures the burner receives the correct airflow required for stable ignition and optimal thermal efficiency

whereas the R4184 is intended for line-voltage thermostat applications

ensuring minimal pressure drop across the line for critical refrigeration and boiler feed operations

which comes pre-programmed from the factory for specific performance curves

York S1-025-29125-000 Terminal Block 319847-401 By maintaining a 1The York S1 025 29125 000 Terminal Block serves as a critical junction for high voltage and control circuit wiring within York, Luxaire, and Coleman air handlers and furnaces. As a genuine Johnson Controls furnace component, this HVAC terminal block is engineered to maintain secure electrical terminations, effectively preventing high resistance heat build up that frequently results in charred insulation or intermittent signal failure in the field.