Nti 84780 Flue Sensor Replacement Part for Tx Models

Product Description

The NTI 84780 is a flue sensor designed as a direct replacement part for NTI TX model boilers. This component monitors flue gas temperature within the boiler system, providing critical data to the control board to ensure safe and efficient combustion. When flue temperatures rise beyond acceptable limits, the sensor signals the control system to take corrective action, protecting the heat exchanger and surrounding components from damage. HVAC technicians and boiler service professionals rely on accurate flue sensing to maintain system performance and meet safety standards. The NTI 84780 is sold as a single unit and is intended for use in residential and light commercial hydronic heating applications where NTI TX model boilers are installed. Replacing a faulty or degraded flue sensor restores proper temperature monitoring, prevents nuisance shutdowns, and supports efficient boiler operation. A worn or failed flue sensor can trigger false error codes, cause unexpected lockouts, or allow the system to run outside safe temperature ranges. Installing the correct OEM replacement part like the NTI 84780 ensures compatibility with the existing control board and wiring harness, reducing the risk of installation errors. This part is stocked as a nonstock item with a typical lead time, so ordering in advance when scheduling a boiler service call is recommended. Trade professionals working on NTI boiler repair, boiler maintenance, or hydronic heating system troubleshooting will find this sensor a reliable solution for restoring full system functionality.

• Direct OEM replacement flue sensor for NTI TX model boilers
• Monitors flue gas temperature to protect system components and ensure safe operation
• Sold as a single unit, compatible with NTI boiler control systems

Product Highlights

The NTI 84780 flue sensor is a purpose-built replacement part for NTI TX model boilers, restoring accurate flue temperature monitoring and keeping hydronic heating systems running safely and efficiently.

Product Information

Standard Information

• Brand: NTI BOILERS
• Manufacturer Part Number: 84780

Technical Specifications

• Type: Replacement Part
• Pack Size: 1 per each
• Unit of Measure: Each
• Compatible Models: NTI TX Series Boilers
• Alternate Part Number: 6000084780