Resideo L4064B2210/B Fan & Limit Controller
700 Nicholas BLVD Suite 105 Elk Grove Village IL 60007
Chicago IL 60007
The Resideo L4064B2210/B Fan & Limit Controller is a temperature-sensitive control used to manage blower operation and provide high-temperature protection in compatible heating systems. It monitors furnace or boiler temperature and activates the fan when the system reaches the selected setting, then turns it off as temperatures decrease. The limit function helps prevent overheating by interrupting heating operation when temperatures exceed the set point. Designed for compatible furnaces, boilers, and warm-air heating equipment, it supports reliable airflow, safe operation, efficient temperature control, and dependable HVAC performance.