Nordyne 632495R -0.80"WC SPST Pressure Switch

The Nordyne 632495R is a single pole single throw (SPST) pressure switch designed for HVAC applications. This pressure switch is factory-calibrated to activate at -0.80 inches water column ("WC), making it ideal for monitoring negative pressure conditions in furnace draft systems.

Key Features:

• Factory-calibrated setpoint of -0.80"WC for consistent performance
• SPST switching configuration for reliable on/off control
• Designed for residential and commercial furnace applications
• Monitors draft inducer pressure to ensure safe furnace operation
• Direct OEM replacement part for Nordyne heating equipment

This pressure switch serves as a critical safety component in furnace operation, ensuring proper venting and combustion air pressure before allowing the heating system to ignite. When the draft inducer motor creates sufficient negative pressure, the switch closes to allow the ignition sequence to proceed.