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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Industrial Durability: Built for continuous duty cycles in commercial and industrial heating environments
55" WC (Water Column) set point
or a tripped thermal switch (TCO) due to restricted airflow in the flame arrestor
provided the gas valve and orifices are correctly configured for the specific fuel source
York S1-024-39716-000 Pressure Switch 322838-752 Industrial Durability: Built for continuousMaintain precise combustion control and system safety with the York S1 024 39716 000 Pressure Switch. This genuine OEM replacement part is factory calibrated to a 0. 20" WC (Water Column) set point, specifically engineered for induced draft furnace draft monitoring. As a critical safety interlock, it verifies that the combustion blower is moving sufficient air to exhaust flue gases before allowing the ignition sequence to proceed. It is a direct fit