Pay in 4 interest-free payments of $79.73 Learn more
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Serviceable design: Features removable orifices and color-coded springs for simplified field maintenance
Integrated Safety Logic: Features a high-limit ECO switch to prevent overheating conditions automatically
maintaining the thermal efficiency and safety parameters required for modern hydronic applications
ensuring no mismatch in spring tension or diaphragm seat
Laars Heating Systems RXD7198 Control Board 321894-706 Serviceable design: Features removable orificesThe Laars Heating Systems RXD7198 Control Board is a critical OEM replacement part engineered for precise thermal management and system logic within high efficiency hydronic systems. Specifically designed for the Laars NeoTherm NTH150 210 series, this HVAC control board integrates advanced microprocessor logic to regulate combustion air flow, ignition sequences, and variable firing rates. For contractors performing boiler control board replacement,