Lochinvar L100166230 Air Pressure Switch

Product Description

The LOCHINVAR L100166230 is an air pressure switch designed to monitor combustion air flow in gas-fired heating equipment. This switch senses the pressure differential created by the inducer blower and signals the control board when adequate airflow is confirmed, allowing ignition to proceed. It is a safety-critical component in the burner proving sequence. Licensed HVAC technicians and heating equipment service professionals handle installation and replacement of this switch during routine maintenance or fault diagnosis.

The L100166230 is suited for use in residential and light commercial gas-fired heating applications where combustion air proving is required. It serves as an OEM-style replacement for existing air pressure switches in LOCHINVAR heating equipment. When diagnosing inducer or pressure switch fault codes, technicians typically verify the switch operation before replacing it.

Key Features

• Monitors combustion air differential pressure to confirm inducer blower operation
• Safety interlock function prevents ignition without confirmed airflow
• OEM replacement part sourced directly from LOCHINVAR
• Designed for integration with standard furnace or boiler control board circuits

Compatibility

Designed as an OEM-style replacement air pressure switch for LOCHINVAR gas-fired heating equipment. No specific compatible model numbers were provided in the available product data.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with gas appliance service procedures. Shut down and lock out the appliance and allow it to cool before servicing any pressure switch. Verify that hose fittings and pressure ports are free of blockage or moisture before connecting the new switch. Work should comply with applicable local mechanical codes and the appliance manufacturer service documentation.

Technical Specifications

• Product Type: Air Pressure Switch

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100166230