Nordyne 626434R Limit Switch

The Nordyne 626434R is a critical HVAC replacement part designed for pinpoint temperature regulation in furnace systems. As an OEM limit switch, this component is engineered to monitor high-temperature operations, specifically featuring a 160-180F auto limit switch range. This furnace limit control operates on an "open on rise" switch action, meaning it breaks the circuit when the internal temperature hits 180?F (82?C) to prevent plenum overheating and potential blower failure. Once the unit cools to 160?F, the automatic reset furnace switch restores the connection, ensuring continuous cycle safety without manual intervention. Built with a 3-inch insert and a 1/2-inch outer diameter, the Nordyne replacement part is essential for maintaining the integrity of gas and electric furnaces. For field technicians, this L180-20 model replaces older part number 626434 and common industrial variants, providing a high-temperature safety switch solution that ensures 1/2D single-stage systems operate within specified thermal boundaries.

• Precise Thermal Protection: Features a calibrated 180?F cut-out and 160?F cut-in to prevent component damage due to overheating.
• OEM Compatibility: Drop-in replacement for Nordyne furnace parts, fitting FG6RA, G5RA, and CMF95072T series units.
• Automatic Reset: Eliminates service calls for manual resets by automatically closing the circuit once temperatures return to 160?F.
• Rugged Construction: Designed with a 3-inch probe insert specifically for heavy-duty residential and commercial air handlers.

• What does the L180-20 designation mean? The 'L' stands for Limit, 180 is the opening temperature in Fahrenheit, and 20 is the differential (subtracting 20 from 180 gives the 160?F reset point).
• Will this switch work if my furnace is cycling on and off too frequently? Frequent cycling often indicates a tripped limit switch; if your existing switch is failing to reset or tripping prematurely, the Nordyne 626434R is the correct standard replacement for 180-degree specifications.
• Is this compatible with other Nortek brands? Yes, this part is used across several Nortek global brands, including Miller, Intertherm, and Broan, provided the original specifications match the L180-20 rating.

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.