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utilizing this exact Johnson Controls replacement part is essential to maintain the original equipment manufacturer's dynamic airflow ratings and safety certifications
or short cycling due to incorrect temperature data being sent to the control board
Common indicators include intermittent furnace cycling
and DGAM series
York S1-029-20423-042 Orifice utilizing this exact Johnson ControlsAs a veteran HVAC service tech, you know that combustion performance starts with precise fuel metering. The York S1 029 20423 042 #42 Natural Gas Burner Orifice is a genuine OEM York furnace part engineered specifically for technical compatibility with residential and commercial heating units. This #42 drill size orifice is factory calibrated to deliver approximately 25,000 BTU hr per burner at standard 3. 5" w. c. manifold pressure, ensuring stable
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