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Lochinvar & A.O. Smith 100166241 - SPDT Pressure Switch, .21" WC

Lochinvar & A.O. Smith 100166241 - SPDT Pressure Switch, .21" WC

Brand: LOCHINVAR SKU: 100166241
Regular price $132.90 USD
Regular price Sale price $132.90 USD
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OEM manufacturer warranty Genuine factory-sourced

Ships factory-new in original packaging.

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Ensure consistent combustion air monitoring with the high-precision 100166241 pressure switch, engineered for seamless compatibility with Lochinvar and A.O. Smith boiler systems. This 100166241 replacement component provides an accurate .21"wc set point to detect airflow status, allowing your heating equipment to operate within specified safety parameters while preventing ignition cycles under suboptimal draft conditions.

This device functions as a Single Pole Double Throw (SPDT) switch that reacts to precise differential pressure changes. When the measured pressure meets the factory-calibrated .21"wc threshold, the internal diaphragm triggers the switch mechanism, signaling the control board to verify airflow before safely initiating the burner sequence.

Key System Performance Baselines:

  • Precision Calibration: Factory-set at .21"wc to match specific OEM venting requirements.
  • Reliable Switching: SPDT configuration allows for both normally open and normally closed logic applications.
  • Durability Standard: Constructed to withstand the high-cycle demands of commercial and residential hydronic equipment.

⚠️ Application Profile: Primarily utilized in high-efficiency boiler combustion air proving circuits, exhaust vent safety monitoring, and draft regulation systems for Lochinvar and A.O. Smith hydronic units.

Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)100166241
Pressure Setting.21"wc
Switch ConfigurationSPDT
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