It is a direct fit for the DUAL SH DBC (Smart Funnel) series

replacing the evaporator scale pad annually is essential to prevent mineral scale buildup

preventing hazardous accumulation in the mechanical room

If the inducer is running and your manometer reads above 0

Heil Quaker ICP 1320331 Limit Switch It is a direct fitThe Heil Quaker ICP 1320331 Limit Switch is a critical OEM replacement part designed for precision temperature regulation in ICP furnaces and high performance HVACR systems. Engineered with a factory calibrated 120 160F temperature range, this auto limit switch functions as a primary safety control, monitoring the thermal environment of the heat exchanger. When temperatures reach the upper 160? F threshold, the contacts open to interrupt the burner