Description
The Nordyne 632520R is an OEM replacement SPST (Single-Pole, Single-Throw) pressure switch engineered to maintain safe and efficient operation in Nordyne-brand heating equipment. Designed to monitor negative draft pressure, this switch verifies that the inducer motor is producing adequate airflow before allowing the ignition sequence to proceed — a critical safety function in modern gas furnaces.
Key Features
- Set point: -0.80″ WC (water column) — factory-calibrated for precise draft sensing
- SPST configuration for straightforward open/close circuit control
- Direct OEM replacement for compatible Nordyne furnace models
- Monitors inducer/draft blower operation to prevent unsafe ignition
- Helps protect the heat exchanger and ensures proper venting
- Durable construction built to withstand the demands of residential heating systems
How It Works
The pressure switch is connected to the inducer housing via a rubber hose. When the inducer blower reaches the correct speed and negative pressure (-0.80″ WC), the diaphragm inside the switch deflects, closing the circuit and signaling the control board to continue the ignition sequence. If adequate draft is not detected, the switch remains open and locks out the furnace — preventing hazardous operation.
Application
- Designed for use in Nordyne gas furnaces requiring a -0.80″ WC draft pressure switch
- Always verify compatibility with your specific model number before installation
- Recommended for installation by a qualified HVAC technician
Why Choose an OEM Replacement?
Using a genuine Nordyne replacement part like the 632520R ensures proper calibration, reliable operation, and maintains equipment warranty compliance. Aftermarket substitutes may not meet the exact pressure specifications required for safe furnace operation.
Reviews
There are no reviews yet.