Westinghouse 632566 Gas Furnace Pressure Switch 2-stage

Product Description

The WESTINGHOUSE 632566 is a two-stage pressure switch designed for non-condensing gas furnaces. Pressure switches monitor the negative pressure created by the inducer motor during operation, confirming proper draft before allowing ignition to proceed. This switch is set at 0.70 inches water column and 0.30 inches water column, one set point for each stage of a two-stage heating system. HVAC technicians install this switch as a direct OEM-style replacement to restore safe ignition sequencing on compatible Westinghouse non-condensing furnace models.

This pressure switch is used in residential non-condensing gas furnace applications where two-stage heating control is required. It is specifically listed for use on Westinghouse furnace models 100-35C1, 120-35C1, and 060-23A1. These furnaces are typically installed in residential forced-air heating systems. Replacement of a failed or out-of-tolerance pressure switch is a common service task when a furnace locks out on a pressure switch fault code.

Key Features

• Two-stage design with set points at 0.70 inches water column and 0.30 inches water column
• Matched to non-condensing gas furnace draft proving requirements
• OEM-specified replacement for listed Westinghouse furnace models
• Monitors inducer motor draft pressure to enable safe ignition sequencing

Compatibility

Designed for use on Westinghouse non-condensing gas furnace models 100-35C1, 120-35C1, and 060-23A1.

Installation Notes

A licensed HVAC technician should perform this replacement. Shut off power to the furnace at the disconnect or breaker before beginning work. Verify gas supply is off before servicing any furnace components. After installation, restore power and cycle the furnace to confirm the pressure switch closes properly at both stages and that no fault codes are present.

Technical Specifications

• Type: Pressure Switch
• Configuration: 2-Stage
• Set Point 1: 0.70 inches water column
• Set Point 2: 0.30 inches water column
• Application: Non-Condensing Gas Furnace

Standard Information

• Brand: WESTINGHOUSE
• Manufacturer Part Number: 632566