Product description

The Honeywell L4064B2210 is a heavy-duty Fan and Limit Controller designed for the automated operation of forced-air heating systems. This combination switch performs two critical functions: it controls the on/off cycles of the furnace fan based on plenum temperature and provides a high-limit safety shut-off to prevent the burner from overheating. This specific model features an 11-1/2 inch insertion probe, making it suitable for larger furnace cabinets where a deeper reach into the air stream is required for accurate sensing. The controller is fully adjustable, allowing technicians to set precise fan-on and fan-off temperatures to maximize comfort and energy efficiency. Its reliable bimetal sensing element ensures long-term accuracy and safety, protecting the home from furnace damage while ensuring that warm air is only circulated when the system has reached the desired temperature.

Product highlights

• Dual-function control for furnace fan cycles and high-limit safety
• Extended 11-1/2 inch insertion probe for deep plenum applications
• Adjustable temperature settings for optimized fan operation
• High-limit safety feature prevents main burner overheating
• Rugged construction designed for the high-heat furnace environment

Specs

• Manufacturer: Honeywell
• Manufacturer Part Number: L4064B2210
• Insertion Depth: 11-1/2 inches
• High Limit Range: 100 to 250 F
• Fan On Range: 65 to 215 F

Direct replacement models

Honeywell L4064B2210, Resideo L4064B2210

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.