International Comfort Products 1179133 WC SPST Pressure Switch - 0.80

The International Comfort Products 1179133 is a single-pole single-throw (SPST) pressure switch designed for residential and light commercial HVAC systems. This pressure switch operates at 0.80 inches water column ("wc), providing reliable pressure sensing for furnace and heating equipment safety circuits.

Key Features:

• SPST (Single-Pole Single-Throw) switching configuration for simple on/off control
• Calibrated to actuate at 0.80 inches water column pressure differential
• Designed as a direct replacement for ICP, Heil, Tempstar, Comfortmaker, and Arcoaire furnaces
• Critical safety component that verifies proper draft inducer operation before allowing ignition
• Durable construction for long-term reliability in furnace applications

This pressure switch is a genuine OEM replacement part that monitors the pressure created by the draft inducer motor. When the switch closes at the correct pressure, it signals the control board that proper venting is occurring and allows the heating sequence to continue. Regular replacement of failed pressure switches helps maintain safe and efficient furnace operation.