Lochinvar L100170642 Flue Temperature Sensor Kit

Product Description

The LOCHINVAR L100170642 is a flue temperature sensor kit designed to monitor exhaust gas temperatures in high-efficiency condensing boiler systems. The sensor feeds real-time flue temperature data to the boiler control system, enabling proper combustion management and safety shutoff functions. It is an OEM-style replacement component intended for installation by licensed heating contractors or mechanical technicians working on commercial and residential hydronic heating equipment.

This sensor kit is specified for use with the Knight XL Model KB series heating boilers, covering the 400 to 801 MBH input range. It is suited for hydronic heating applications where accurate flue temperature monitoring is critical to system efficiency and safe operation. Technicians servicing Knight XL boilers will find this kit provides a direct replacement for the factory-installed sensor.

Key Features

• OEM-style flue temperature sensor for accurate exhaust monitoring
• Supports combustion management and high-limit safety functions
• Designed for Knight XL KB 400 to 801 series boilers
• Kit format includes components needed for a complete sensor replacement

Compatibility

Designed for use with the Knight XL Model KB 400 to 801 Heating Boiler.

Installation Notes

Installation should be performed by a licensed HVAC or mechanical technician familiar with hydronic boiler systems. Before servicing, shut down the boiler, isolate electrical power, and allow the flue and heat exchanger components to cool completely before handling the sensor. Follow all applicable local codes and the manufacturer service documentation when routing and securing sensor wiring. Do not restore power until all connections are confirmed secure and the flue assembly is fully reassembled.

Technical Specifications

• Compatible Equipment: Knight XL Model KB 400 to 801 Heating Boiler

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100170642