Product description

For standard-sized forced-air furnace applications, the Honeywell L4064B2236 Fan and Limit Controller provides reliable, automated system management. This combination switch monitors the temperature within the furnace plenum to coordinate the operation of the circulation fan with the burner cycles. It ensures that the fan only runs when the air is sufficiently warm, preventing cold drafts, and features a critical high-limit safety switch that cuts power to the burner if temperatures exceed safe operating parameters. This model is equipped with an 8-inch insertion probe, ideal for a wide variety of residential and light commercial heating units. The L4064B2236 is known for its durability and ease of adjustment, allowing for custom tailoring of the heating cycle to improve energy efficiency and occupant comfort. Its proven design makes it a standard choice for HVAC professionals performing furnace repairs and upgrades.

Product highlights

• 8-inch insertion probe suitable for standard furnace plenums
• Integrated fan and high-limit switches in a single compact unit
• Adjustable temperature setpoints for customized heating cycles
• Essential safety feature prevents furnace overheating and damage
• Highly reliable bimetal sensing element for long-term accuracy

Specs

• Manufacturer: Honeywell
• Manufacturer Part Number: L4064B2236
• Insertion Depth: 8 inches
• High Limit Range: 100 to 250 F
• Scale Range: 50 to 250 F

Direct replacement models

Honeywell L4064B2236, Resideo L4064B2236/U

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.