Nti 84915 Diverter Valve Stepper Motor Replacement TX151C

Product Description

The NTI 84915 is a diverter valve stepper motor designed as a direct replacement for systems requiring the TX151C configuration. This component plays a critical role in hydronic heating systems, controlling the direction of hot water flow between different circuits such as domestic hot water and space heating loops. The stepper motor drives the diverter valve through precise incremental movements, allowing the boiler control system to redirect water flow on demand with accuracy and repeatability. HVAC technicians and boiler service professionals rely on stepper motor diverter valves to maintain correct system zoning and priority switching in combination boiler and indirect water heater setups. When a diverter valve stepper motor fails, common symptoms include loss of domestic hot water priority, failure to switch between heating zones, error codes on the boiler display, and inconsistent system temperatures. Replacing the motor with the correct OEM part restores proper valve operation without requiring full valve body replacement. The NTI 84915 is engineered to match the original specifications of the TX151C application, ensuring compatibility with NTI boiler models that use this valve assembly. This type of motor connects directly to the valve actuator mechanism and receives control signals from the boiler control board. Proper installation requires isolating the system, removing the existing motor from the valve body, and securing the replacement unit in the same orientation. NTI is a recognized manufacturer of high-efficiency condensing boilers and hydronic heating equipment, and their OEM replacement parts are produced to the same standards as original production components. Using the correct manufacturer part number ensures a reliable fit and long service life. This part is suitable for trained heating technicians performing warranty repairs, routine maintenance, or emergency service calls on NTI boiler installations.

• Direct replacement stepper motor for NTI diverter valve assemblies using the TX151C configuration
• Controls water flow direction between domestic hot water and space heating circuits in hydronic systems
• OEM-grade component engineered to match original NTI boiler specifications for reliable long-term performance

Product Highlights

The NTI 84915 diverter valve stepper motor is a precise OEM replacement part for TX151C applications, restoring accurate flow control in NTI hydronic heating systems. It is the correct choice for HVAC and boiler technicians servicing NTI combination boiler installations.

Product Information

Standard Information

• Brand: NTI
• Manufacturer Part Number: 84915

Technical Specifications

• Component Type: Diverter Valve Stepper Motor
• Reference Model: TX151C
• Application: NTI Hydronic Boiler Systems
• Function: Redirects water flow between domestic hot water and space heating circuits