Icp 1176116 Limit Switch Auto Reset 140-100F

Product Description

The INTERNATIONAL COMFORT PRODUCTS 1176116 is an auto-reset high-limit switch designed for use in forced-air gas furnace systems. It opens the control circuit when the heat exchanger or supply-air plenum reaches 140 degrees F, then automatically resets when the temperature drops back to 100 degrees F. This 40-degree differential protects the heat exchanger and connected components from sustained overtemperature conditions. The part is a genuine OEM replacement component, making it a direct fit for the original equipment specification. Licensed HVAC technicians performing furnace diagnostics or limit-switch replacements are the primary installers of this part.

This limit switch is intended for residential and light-commercial forced-air gas furnace applications where an auto-reset overtemperature protection device is required. It is suited for installations where the control board or furnace safety circuit requires a normally closed limit switch that opens on temperature rise. Verify the setpoint and differential against the unit wiring diagram and nameplate before installation to confirm this switch matches the application.

Key Features

• Auto-reset operation returns the switch to closed position once temperature falls to 100 degrees F without manual intervention
• Opens at 140 degrees F to interrupt the burner or blower control circuit and prevent overheating
• 40-degree F differential between open and reset setpoints provides stable, reliable cycling
• Genuine OEM replacement part ensures dimensional and electrical compatibility with original specifications
• Compact 1-inch cube form factor fits standard limit-switch mounting locations

Compatibility

Designed as an OEM-style replacement limit switch for residential and light-commercial gas furnace control circuits where a 140 degrees F open, 100 degrees F auto-reset high-limit device is specified.

Installation Notes

Installation should be performed by a licensed HVAC technician following applicable mechanical and electrical codes. Shut off gas supply and disconnect electrical power to the furnace at the disconnect switch or breaker before removing the existing limit switch. Inspect the mounting surface and wiring harness connector for heat damage before installing the new switch. Confirm airflow through the system is unobstructed after installation, as restricted airflow is the most common root cause of nuisance limit-switch trips.

Technical Specifications

• Open Setpoint: 140 degrees F
• Reset Setpoint: 100 degrees F
• Reset Type: Auto Reset
• Length: 1 inch
• Width: 1 inch
• Height: 1 inch

Standard Information

• Brand: INTERNATIONAL COMFORT PRODUCTS
• Manufacturer Part Number: 1176116