Lochinvar & A.O. Smith 100208459 Connection Board

The Lochinvar & A.O. Smith 100208459 Low Voltage Connection Board is a second-generation OEM replacement part engineered specifically for KB and KBXL boilers, as well as Knight XL and Aquas commercial pool heaters. Designed to centralize electrical landing points, this 100208459 control board facilitates seamless signal transmission across the low-voltage circuit, ensuring the boiler's integrated controls communicate effectively with external sensors and thermostats. For technicians managing commercial boiler maintenance, this board replaces legacy part numbers RLY20062K, RLY20062, and 100167579. Its precision-engineered terminal strips reduce the risk of wiring errors and circuit malfunctions in XPN400-802 and XP402-802 models. By maintaining stable power distribution to the low-voltage components, this genuine Lochinvar connection board helps prevent intermittent signal loss and ensures efficient operation of high-efficiency heating systems. It is built to original manufacturer standards to ensure full compatibility with Lochinvar Knight XL series heaters.

Key Benefits:

• Direct OEM Match: Designed for exact fitment in Lochinvar KB, KBXL, and Knight XL series.
• System Reliability: Facilitates stable low-voltage signal transmission for critical heater controls.
• Streamlined Installation: Centralized connection points simplify wiring for field technicians.
• Cross-Compatibility: Replaces archived part numbers 100167579 and RLY20062K.
• High Durability: Engineered to withstand the thermal demands of commercial boiler rooms.

Common Questions:

• What Lochinvar models use the 100208459 board? It is the standard low-voltage interface for KB/KBXL boilers and Knight XL (XPN, XP, OXN) heater models.
• Can this board replace the RLY20062? Yes, the 100208459 is the official second-generation replacement for the RLY20062 and RLY20062K.
• Is this board suitable for outdoor units? Yes, it is compatible with the Knight XL OXN400-801 outdoor heater models.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.