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The NTI 83059-1 is a terminal strip with cable assembly designed for use with NTI Ti100-200 condensing gas boilers. This harness and board assembly serves as a critical wiring interface inside the boiler control system. It connects the control board to sensors, pumps, thermostats, and other components that keep the boiler running safely and efficiently. HVAC technicians and boiler service professionals rely on parts like this when diagnosing wiring failures, replacing damaged harnesses, or completing full control board swaps. A failed or corroded terminal strip can cause communication errors between the boiler controls and system components, leading to lockouts, fault codes, or inconsistent heating performance. Using the correct OEM replacement part ensures proper fit and reliable operation. The NTI Ti100-200 series is a line of high-efficiency condensing gas boilers commonly found in residential and light commercial hydronic heating systems. These boilers operate at high annual fuel utilization efficiency ratings and require precise electrical connections to manage burner ignition, temperature sensing, and modulation. The cable harness in this assembly routes low-voltage signals between the main control board and the terminal strip, which serves as the distribution point for multiple wiring leads. When this component is damaged, worn, or fails due to heat exposure or age, it must be replaced with the factory-specified part to restore full boiler function. This replacement assembly is intended for trained HVAC technicians performing boiler repairs and control system service. Always disconnect power before servicing internal boiler wiring components.
The NTI 83059-1 terminal strip with cable is the correct OEM replacement harness and board assembly for NTI Ti100-200 condensing gas boilers, restoring proper electrical connections to the boiler control system.
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