Heil 1320547 Furnace Limit Switch Boiler Safety Controls & Aquastats - L180-20F 3 Inch

The Heil 1320547 is an OEM furnace limit switch rated at 180 degrees Fahrenheit (L180-20F) with a 3-inch mounting configuration. This critical safety component is designed to protect your heating system from overheating by automatically shutting down the furnace when temperatures exceed safe operating limits.

Key Features:

• Automatic reset limit switch rated at 180°F trip temperature
• Resets automatically when temperature drops to 160°F
• 3-inch mounting bracket for easy installation
• Heat-resistant construction with durable metal housing
• 1/4-inch terminal connections for standard wiring
• OEM quality replacement part

Compatibility:

This limit switch is a direct replacement for multiple ICP family brands including Heil, Tempstar, Comfortmaker, Arcoaire, Day & Night, KeepRite, Lincoln, and Snyder General furnaces. It replaces part numbers 1320-547, 1010708, and HQ1010708TD.

Function:

As a thermal safety device, this limit switch monitors the heat exchanger temperature and interrupts the heating circuit when the set point of 180°F is reached. This prevents equipment damage and potential safety hazards caused by excessive temperatures. The switch automatically resets when the temperature drops back to safe levels, allowing normal operation to resume without manual intervention.