Carrier 1176906 Limit Switch 180 Degrees F

Product Description

The CARRIER 1176906 is an OEM limit switch rated at 180 degrees F, designed to monitor temperature inside a furnace heat exchanger or plenum and shut off the burner when an unsafe high-temperature condition is detected. This safety control prevents overheating, protecting the heat exchanger and downstream components from thermal damage. The 1176906 is a direct OEM part sourced for ICP and Heil Quaker HVAC equipment. Licensed HVAC technicians handle installation and replacement of this component as part of routine furnace diagnostics or safety-control servicing.

This limit switch is used in forced-air gas furnace applications where high-limit protection is required. It is typically located on the heat exchanger or plenum and opens the control circuit when the rated trip temperature of 180 degrees F is reached, interrupting burner operation until the unit cools to a safe level. It is suited for residential and light commercial furnace installations where ICP or Heil Quaker equipment is in service.

Key Features

• OEM replacement limit switch rated at 180 degrees F trip temperature
• Interrupts burner operation on high-temperature fault to protect the heat exchanger
• Direct OEM fit for ICP and Heil Quaker HVAC equipment
• Safety-critical component designed for reliable operation in forced-air furnace systems

Compatibility

This is an OEM replacement limit switch for ICP (Heil Quaker) HVAC equipment. Refer to your equipment service manual or the original part label to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut off all power to the furnace at the disconnect and thermostat before removing or installing the limit switch. Verify the replacement switch matches the original trip temperature rating and mounting configuration. Follow applicable local mechanical codes and manufacturer service documentation during installation.