Description
The Nordyne 632427R is an OEM replacement SPST (Single-Pole, Single-Throw) pressure switch engineered for use in Nordyne heating and air systems. Designed to monitor draft pressure within the venting system, this switch helps ensure safe and efficient furnace operation by verifying that the inducer motor is creating adequate airflow before allowing ignition to proceed.
Key Features
- Set Point: -0.55″ water column (“wc) — factory-calibrated for precise pressure sensing
- Switch Type: SPST (Single-Pole, Single-Throw) for straightforward open/close circuit control
- Connection: 1/4″ barbed port for secure, leak-free hose attachment
- OEM replacement part for compatible Nordyne furnace and air handler models
- Monitors inducer/draft pressure to prevent unsafe ignition conditions
- Helps protect the heat exchanger and combustion system from damage
Application
This pressure switch is a direct OEM replacement designed for Nordyne brand furnaces and heating systems. It works in conjunction with the draft inducer blower to confirm proper venting pressure before the control board allows the ignition sequence to begin. If pressure is insufficient — indicating a blocked flue, failed inducer, or venting issue — the switch remains open, locking out ignition and protecting the system and occupants.
Specifications
- Part Number: 632427R
- Brand: Nordyne
- Switch Type: SPST
- Pressure Set Point: -0.55″ wc
- Port Connection: 1/4″ Barbed
Why Choose OEM?
Using a genuine Nordyne OEM pressure switch ensures compatibility, reliability, and proper calibration for your specific equipment. Aftermarket substitutes may not meet the exact pressure specifications required for safe operation. Trust OEM parts to maintain system integrity and warranty compliance.
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