Resideo by HoneyWell L4064B2210 Fan and Limit Controller Insert - 11.5

The Resideo by Honeywell L4064B2210 is a universal combination fan and limit controller designed for controlling high limit and fan motor operation in all types of forced air heating systems. The helical bimetal sensing element automatically turns the fan on and off according to plenum temperature, while factory settings include 125°F fan on, 100°F fan off, and 200°F high limit.

Key Features:

• Three wiring terminal options for easy installation: push-in receptacles for stripped wire, female receptacles for 1/4 inch male flag connectors, and auxiliary screw terminals
• Field adjustable fan and high limit settings with adjustable limit range from 100°F to 250°F
• Manual fan switch that overrides automatic control to keep fan running continuously
• Mounting adapters for replacing competitive devices and strain relief bushing for preventing wiring damage
• 11.5-inch (11-1/2") insertion length for standard furnace applications
• Includes breakaway jumper for installation flexibility
• Replaces L4064A, B, and E models, making it an ideal universal replacement control

This TRADELINE series controller provides reliable temperature monitoring and fan control for residential and light commercial forced air heating systems. The precision-engineered bimetal sensor ensures accurate response to temperature changes, protecting your HVAC equipment from overheating while optimizing comfort and efficiency.