Campbell L100165923 Flame Sensor Kit with Gasket

Product Description

The CAMPBELL L100165923 is a flame sensor kit with gasket designed for use in high-capacity commercial heating boiler applications. The flame sensor monitors burner ignition and proves a stable flame signal to the boiler control system, allowing safe continued operation. If the sensor fails to detect a proper flame, the control board initiates a lockout sequence to prevent unburned fuel from accumulating. This kit includes the gasket needed to maintain a proper seal at the sensor mounting point. Installation is typically performed by a licensed HVAC technician or hydronic heating specialist familiar with commercial boiler controls.

This flame sensor kit is specified for use with the Crest Model FBN(L) 2500 to 5000 heating boiler. These are large-output commercial condensing boilers commonly found in institutional, multi-family residential, and light commercial heating systems. Replacing a worn or contaminated flame sensor restores reliable ignition proving and prevents nuisance lockouts or unsafe operating conditions.

Key Features

• Includes flame sensor and mating gasket for a complete service replacement
• Restores reliable flame detection and burner proving function
• Gasket included to ensure a proper seal at the sensor port
• Designed as an OEM-style replacement for the specified Crest boiler models
• Supports safe boiler operation by enabling accurate flame signal feedback to the control system

Compatibility

Suitable for use with the Crest Model FBN(L) 2500 to 5000 heating boiler.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified hydronic heating professional. Before servicing, shut down the boiler, isolate electrical power, and allow all components to cool fully. Follow all applicable local codes and the boiler manufacturer's service procedures when removing the old sensor and installing the replacement. Do not operate the boiler without the gasket properly seated to avoid combustion gas leakage at the sensor port.

Technical Specifications

• Compatible Equipment: Crest Model FBN(L) 2500 to 5000 Heating Boiler
• Kit Contents: Flame Sensor, Gasket

Standard Information

• Brand: CAMPBELL
• Manufacturer Part Number: L100165923