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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
This assembly includes the LP916 setpoint knob
ideal for low-pressure steam and hydronic heating
always verify your specific boiler model number as some older "AT" or "Z" series models may require the 550001625 variant depending on the element count and breaker configuration
Built to handle fluctuating thermal loads
Key Benefits Direct Superset Fit: Precisely replaces legacy part numbers EF33CW186 and EF33CW187 without requiring harness modifications
York S1-025-36388-003 Pressure Switch R-410A This assembly includes the LP916The York S1 025 36388 003 is a critical safety component designed for precise monitoring of combustion blower performance in residential HVAC systems. This PS80 04 F0312 model functions as an inductive load pressure switch, ensuring the draft inducer motor establishes proper static pressure before the ignition sequence begins. Engineered specifically for furnace pressure switch replacement applications, this OEM component prevents hazardous operation