it keeps the fan running to cool the heat exchanger while blocking the gas valve for safety

This unit serves as a direct technical replacement for the 2445000 and legacy LF174A-3/4-150 configurations

As a critical firing component

The Carrier 08-2833-38 Limit Switch is a high-performance OEM replacement part engineered for critical temperature monitoring in Carrier

Smith 100111586 Board is a critical OEM replacement part engineered for high-performance boilers and water heaters

Heil Quaker ICP 1178085 Blower Wheel 321894-708 it keeps the fan runningThe Heil Quaker ICP 1178085 Blower Wheel is a critical OEM replacement part designed for high performance air delivery in ICP, Heil, and Tempstar packaged units. This 10x10 blower wheel features a 5 8" bore and is engineered to maintain precise static pressure balance within your furnace or air handler. Constructed from galvanized steel, this double inlet blower wheel is built to withstand high speed rotations without the blade deformation often seen