Description
The Nordyne 632622R is a Single-Pole Single-Throw (SPST) pressure switch engineered for precise draft pressure monitoring in Nordyne-family heating systems. Factory-set at a -1.20″ water column (WC) set point, this switch confirms that the inducer blower is generating adequate negative pressure before allowing the ignition sequence to proceed — a critical safety interlock that protects both the equipment and the occupants.
Key Features
- OEM Nordyne replacement pressure switch — direct-fit for compatible Nordyne, Frigidaire, Gibson, Tappan, and affiliated brand furnaces
- Factory-calibrated set point of -1.20″ WC for accurate and consistent pressure sensing
- SPST (Single-Pole Single-Throw) switching action — opens or closes the circuit based on sensed draft pressure
- Monitors inducer blower operation to verify proper venting before ignition is permitted
- Helps prevent incomplete combustion, flue gas spillage, and unsafe furnace operation
- Durable construction designed to withstand the thermal and pressure cycling demands of residential and light-commercial heating applications
Specifications
- SKU: 632622R
- Brand: Nordyne
- Switch Type: SPST (Single-Pole Single-Throw)
- Set Point: -1.20″ WC (Water Column)
- Function: Draft / Inducer Pressure Switch
- Application: Nordyne-family gas furnaces
Why Replace Your Pressure Switch?
A failed or out-of-calibration pressure switch is one of the most common causes of furnace lockout. When the switch fails to close — or fails to open — the control board cannot confirm safe venting conditions, leading to no-heat calls or nuisance lockouts. Replacing with a genuine Nordyne OEM part like the 632622R restores factory-spec performance and ensures the safety interlock functions exactly as designed.
Compatibility
Always verify compatibility with your specific furnace model number before installation. Refer to the furnace wiring diagram and OEM parts documentation to confirm this is the correct pressure switch for your application.
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