Lochinvar L100284350 Connection Board

Product Description

The LOCHINVAR L100284350 is a connection board designed for use in Lochinvar heating equipment. Connection boards of this type serve as the central wiring hub within a boiler or water heater control system, routing low-voltage signals between the main control, sensors, and field-installed components. The L100284350 is identified as an NKB-series connection board, suited to Lochinvar Knight boiler applications. Licensed HVAC technicians and plumbers who service Lochinvar hydronic heating systems are the primary installers of this component.

This connection board is intended for use in residential and light commercial hydronic heating systems where the NKB control platform is used. It provides a structured terminal and connector interface that simplifies field wiring during installation or board replacement. When the existing connection board shows signs of damage, corrosion, or failure that disrupts communication or power distribution within the control system, this part serves as the direct replacement.

Key Features

• NKB-series connection board engineered for Lochinvar heating equipment
• Provides centralized wiring connections for low-voltage control signals
• Designed as a direct OEM-style replacement to restore system function
• Compact board format suited to the control compartment of Lochinvar boilers

Compatibility

Designed as an OEM-style replacement connection board for Lochinvar NKB-series heating equipment. Consult Lochinvar documentation or the unit model plate to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified service professional familiar with hydronic heating systems. Disconnect all electrical power to the appliance before removing or installing the connection board. Follow the appliance wiring diagram and any applicable local electrical codes when reconnecting field wiring. Retain the original wiring layout or photograph connections before disassembly to ensure accurate reinstallation.

Technical Specifications

• Series: NKB

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100284350