Its durable construction is built to withstand the rigorous cycling of residential furnaces

and newer HFC blends

Precision Metering: Enhances system efficiency by adapting to real-time thermal loads at the indoor coil

this harness is specifically rated for furnace safety limit circuits

Optimized Power Management: Consumes a steady 14W at 24V DC

Reznor 258319 Control Board 324846-701 Its durable construction is builtThe Reznor 258319 Control Board is a critical OEM replacement part engineered specifically for Reznor Varidigm heating and ventilation systems. This high density circuit board serves as the primary controller for industrial HVAC applications, managing complex ignition sequencing, blower motor timing, and safety circuit monitoring. Designed to interface with the Varidigm 1200 series, the 258319 ensures precise modulation of gas fired units, optimizing