Westinghouse 632452R Furnace Pressure Switch 1.00 in Wc

Product Description

The WESTINGHOUSE 632452R is a furnace pressure switch rated at 1.00 inch water column (WC), configured as a single-pole single-throw (SPST) unit with a dual-port design. Pressure switches are safety devices in forced-air gas furnaces that monitor negative pressure produced by the inducer motor. If the inducer fails to generate adequate draft, the switch prevents burner ignition, protecting the heat exchanger and venting system from unsafe combustion conditions. This part is installed by licensed HVAC technicians as part of routine service or during component-level troubleshooting on gas furnace systems.

This pressure switch is suited for residential gas furnace applications where a 1.00 inch WC setpoint is required. The dual-port configuration allows connection to two pressure reference points, which is common in two-stage furnaces or systems that require both positive and negative pressure sensing. Install in furnaces where the OEM specification calls for a 1.00 inch WC SPST dual-port pressure switch. Verify the setpoint and port configuration against the furnace wiring diagram and OEM specifications before installation.

Key Features

• Rated at 1.00 inch water column (WC) setpoint for precise draft pressure control
• SPST configuration opens the control circuit when adequate inducer draft is not detected
• Dual-port design supports two-pressure-reference sensing applications
• Functions as a safety interlock to prevent ignition under unsafe draft conditions
• OEM-style replacement for gas furnace pressure switch service calls

Compatibility

Designed as an OEM-style replacement pressure switch for residential gas furnace systems requiring a 1.00 inch WC SPST dual-port pressure switch. Verify setpoint, port count, and electrical ratings against the existing switch and furnace documentation before ordering.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect power to the furnace at the disconnect switch or breaker before removing the existing pressure switch. Inspect the inducer hose and ports for cracks, blockages, or moisture before connecting the replacement switch. Refer to the furnace wiring diagram for correct port assignments and circuit connections.

Technical Specifications

• Type: Pressure Switch
• Application: Furnace
• Setpoint: 1.00 inch WC
• Switch Configuration: SPST
• Port Type: Dual Port

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 632452R