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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Specifically engineered for R4 frame size units
Maintenance-Free Design: Engineered for dependable
this outlet cell panel maintains the structural integrity of the secondary heat exchanger
This assembly features a precision-engineered centrifugal blower wheel and a robust blower housing
Can this kit be used for both direct-acting and reverse-acting units
York S1-024-39716-000 Pressure Switch 321894-709 Specifically engineered for R4 frameMaintain 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