Lochinvar L100287156 Flue Sensor with Grommet

Product Description

The LOCHINVAR L100287156 is a flue sensor with grommet designed to monitor flue gas temperature in hydronic heating and water heating equipment. The sensor relays temperature data to the control system, allowing the unit to operate safely within its designed parameters. A grommet is included to provide a secure, sealed mounting point where the sensor passes through the flue collar or heat exchanger housing. This part is installed by licensed HVAC technicians and plumbers servicing LOCHINVAR boilers and water heaters.

This flue sensor is a direct-replacement component suited for residential and light commercial hydronic systems. It installs in applications where flue gas temperature monitoring is required for safe combustion operation. When this sensor fails or reads out of range, the control board may lock out the unit to prevent unsafe operating conditions, making prompt replacement critical for restoring system function.

Key Features

• Monitors flue gas temperature to support safe combustion control
• Includes grommet for a secure, sealed installation point
• OEM replacement part — direct fit for original mounting location
• Designed for integration with LOCHINVAR control systems

Compatibility

Designed as an OEM-style replacement flue sensor for LOCHINVAR boilers and water heating equipment requiring part number L100287156.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Power down the unit and allow the flue assembly to cool completely before removing the existing sensor. Ensure the grommet seats fully to maintain a proper seal at the sensor penetration point. Consult the equipment service manual and applicable local codes before commencing work.

Technical Specifications

• Product Type: Sensor
• Included Components: Flue sensor, grommet

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100287156