Nordyne 626429R Limit Switch

The Nordyne 626429R Limit Switch is a critical safety component designed for precise thermal regulation in HVAC systems including electric furnaces and heat pumps. Engineered as a direct replacement for part 626429, this auto-reset limit switch features an operating range of 120°F to 170°F. As a limit open-on-rise control, it utilizes a 1-pole configuration to interrupt the heating circuit when temperatures exceed the preset 170°F limit, preventing heat exchanger damage and ensuring safe equipment operation. Once the temperature drops back to the 120°F reset point, the switch automatically closes to restore functionality. This OEM Nordyne part is commonly used in Intertherm, Miller, and Nortek furnace limit control applications, fitting E1EH and E1EB series electric furnaces. Its robust construction ensures reliable cycling and accurate thermal protection for mobile home and residential HVAC equipment maintenance.

• Direct OEM Compatibility: Serves as the factory-authorized replacement for 626429 and 201715, ensuring a perfect fit without modification in Nordyne furnace units.
• Automatic Reset Functionality: Eliminates the need for manual intervention by automatically resetting once the air temperature returns to the safe 120°F operating threshold.
• Enhanced Safety: Provides essential overheat protection to protect 15KW and 17KW heating elements from thermal failure.
• Universal HVAC Application: Optimized for use in manufactured housing heating units, including gas and electric furnaces and heat pump systems.

Is the 626429R switch compatible with older Intertherm furnaces?
Yes, this part is the designated technical replacement for the legacy 626429 and 201715 switches used in Intertherm and Miller E1 series electric furnaces.

What does the L170-50 code mean for this limit switch?
This industry-standard code indicates the switch opens at 170°F (L170) and has a 50-degree differential, meaning it will reset (close) when the temperature drops to 120°F.

Can I use this switch for both gas and electric heating systems?
The Nordyne 626429R is cross-compatible with various heating platforms, provided the manufacturer specifies an L170-50 limit control for that specific model's safety circuit.

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.