Nordyne 632200R Pressure Switch

The Nordyne 632200R Pressure Switch is an essential safety component for maintaining proper combustion airflow in residential furnaces. This genuine OEM part is rated at a -1.18" WC setpoint and is engineered to monitor the negative pressure generated by the inducer motor. This switch is the direct replacement for obsolete or superseded part numbers 632200, 632406, and 632450R. Designed for high-reliability performance, it features dual hose ports and two wiring terminals for seamless integration into the safety circuit of Nordyne, Intertherm, Miller, and Revolv furnaces.

For field technicians, the 632200R ensures the system only initiates the ignition sequence if the inducer is pulling the required vacuum to clear combustion gases effectively. Replacing a failed furnace pressure switch with this factory-spec component prevents safety lockouts and ensures the control board receives the correct signal under varying environmental conditions. This OEM switch is a standard 1.18 PF (Pressure Factor) model, critical for restoring the safe operating parameters of high-efficiency heating units.

Key Benefits for Contractors

• Direct OEM Compatibility: Replaces factory part numbers 632200, 632406, and 632450R without requiring bracket modifications.
• Precise Negative Pressure Sensing: Factory-calibrated to -1.18" Water Column to match specific inducer motor curves.
• Enhanced System Safety: Prevents furnace operation if venting is obstructed or the inducer fails, protecting the heat exchanger.
• Robust Construction: Built to withstand commercial and residential duty cycles in diverse HVAC applications.

Common Questions

Is the 632200R a universal replacement?
No, this is a genuine OEM part specifically calibrated for Nordyne systems. While universal switches exist, installing a switch with the wrong setpoint can cause dangerous ignition delays or permanent system lockouts.

Why is my furnace giving a "Pressure Switch Open" error?
This typically occurs if the inducer motor is weak, the venting is blocked, or the 632200R pressure switch has failed. Always verify the vacuum pressure with a manometer before replacing the switch.

What are the compatible brands for this part?
The 632200R is a primary service part for brands manufactured under the Nordyne umbrella, including Intertherm, Miller, Revolv, Tappan, and Maytag furnaces.

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.