Nordyne 626552R Fan Switch

This Nordyne 626552R Fan Switch is the direct engineering update for the legacy 626552, designed specifically for high-reliability HVAC blower motor control. As an OEM Nordyne part with an F115-20 technical designation, it functions as a normally open (NO) switch that closes upon reaching 115°F and maintains a 20°F differential. This ensures precise furnace fan limit control, preventing short-cycling and optimizing airflow in air handlers and downflow furnace systems like the CMF2 series.

For field technicians, the Nordyne F115-20 switch provides a critical safety and operational interface. It is rated for 120/240 VAC applications with a 15-20A amperage rating, making it compatible with various residential and light commercial Nordyne HVAC systems. The 3/4" diameter flush-mount design allows for rapid integration into existing limit strings. By utilizing this updated 626552R fan switch, contractors ensure the blower operates only when the heat exchanger has reached the appropriate discharge temperature, protecting the heat exchanger and improving end-user comfort.

• Compatibility: Direct OEM replacement for the 626552, ensuring exact fitment in Nordyne and Intertherm units.
• Precision Calibration: Factory-set F115-20 thermal parameters (115°F Close / 95°F Open) for accurate fan sequencing.
• Heavy-Duty Construction: Built for high-cycling furnace environments to reduce nuisance service calls.
• Safe Operation: Normally open circuit design ensures the blower only activates once thermal thresholds are met.

Is the 626552R compatible with older furnace models?
Yes, the 626552R is the official replacement fan switch for the discontinued 626552. It is engineered to meet or exceed the original technical specifications for legacy Nordyne air handlers.

What does the F115-20 rating signify?
The "F" indicates it is a fan switch (Normally Open). The "115" is the temperature (in Fahrenheit) at which the switch closes to engage the fan, and the "20" is the temperature differential, meaning it will open (disengage the fan) at 95°F.

Can this be used as a high-limit safety?
No, this is a fan control switch designed to manage blower operation. High-limit safeties are typically normally closed (L-rating) and should not be replaced with an F-rated fan switch.

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.