Heil 1160193 Adjustable Limit Switch 140-180°F with 20°F Differential

The Heil 1160193 is an adjustable disc-type limit switch designed for residential and light commercial gas furnaces. This critical safety component monitors furnace temperature and controls the blower fan operation to prevent overheating and ensure safe, efficient heating system performance.

Key Features:

• Adjustable temperature range: 140-180°F for customized temperature control
• 20°F differential ensures proper fan cycling and temperature regulation
• Disc-type limit switch design for reliable temperature sensing
• Genuine OEM replacement part for Heil, ICP, and Quaker brand furnaces
• Direct replacement for original equipment to restore proper furnace operation

This limit switch serves a dual safety and operational function. It prevents the furnace from overheating by shutting down the burner if temperatures exceed safe levels, while also controlling when the blower fan turns on and off based on heat exchanger temperature. The adjustable setpoint allows HVAC technicians to fine-tune the switch to match specific furnace requirements. Professional installation is recommended to ensure proper calibration and safe operation.