Lochinvar L100165931 Flame Sensor with Gasket

Product Description

The LOCHINVAR L100165931 is a flame sensor with gasket designed for use in commercial pool heating systems. The flame sensor monitors burner operation by detecting the presence of a flame through ionization current, providing a signal to the control board that confirms ignition. If the sensor fails to detect a flame within the required trial-for-ignition period, the control will initiate a lockout. This part includes the mating gasket for a sealed installation. It is typically installed and serviced by licensed HVAC technicians or commercial pool equipment technicians familiar with hydronic heating systems.

This flame sensor is specified for use with the KnightXL AQUAS XP 602 to 802 commercial pool heater series. These are high-capacity commercial pool heaters commonly installed in natatoriums, hotel pools, aquatic centers, and similar facilities. The heater range covered spans the 602 through 802 MBH input models within that product family. Technicians servicing units in this range experiencing nuisance lockouts, flame-sensing faults, or ignition failures should evaluate this sensor as a replacement candidate.

Key Features

• OEM replacement flame sensor sized and rated for the KnightXL AQUAS XP 602 to 802 series
• Includes gasket for proper sealing at the burner assembly interface
• Ionization-type sensing for accurate, responsive flame detection
• Designed to integrate with the existing control board ignition circuit without modification
• Direct OEM-style fit reduces installation time and eliminates fitment guesswork

Compatibility

Designed for use with the KnightXL AQUAS XP 602 to 802 Commercial Pool Heater as specified by LOCHINVAR.

Installation Notes

Flame sensor replacement should be performed by a licensed HVAC or commercial heating technician. Before beginning work, shut down the heater and disconnect electrical power at the disconnect switch; also close the gas supply valve and allow the heat exchanger to cool. The sensor probe and gasket seating surfaces should be inspected for carbon buildup or corrosion before installing the new sensor. Consult the equipment service manual and applicable local codes for proper torque and wiring procedures specific to the unit.

Technical Specifications

• Includes: Flame Sensor and Gasket
• Compatible Equipment: KnightXL AQUAS XP 602 to 802 Commercial Pool Heater

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100165931