Honeywell L4006A1967 Controller
The Honeywell L4006A1967 is a trade-grade immersion-type Aquastat controller engineered for precise temperature regulation in hydronic systems, boilers, and liquid storage tanks. Featuring SPST contacts that break on temperature rise, this unit is commonly deployed as a high-limit or low-limit control. It utilizes a 3/8" x 2 7/8" copper sensing bulb paired with a 1 1/2" capillary for responsive thermal detection. The device supports an operating range of 100?F to 240?F and provides a 5?F to 30?F adjustable differential, allowing technicians to fine-tune cycling and prevent short-cycling of the burner or circulator pump. Built with a Micro Switch snap-acting mechanism, the L4006A1967 ensures reliable switching under load. The housing is designed for either horizontal or vertical mounting, offering maximum flexibility in tight mechanical rooms. This model includes a 1/2" well spud and is functionally identical to the L4006A1967/U, ensuring seamless integration into existing Honeywell Aquastat setups.
Key Benefits for the Contractor:
- Versatile Application: Functions effectively as either a high-limit regulator, low-limit control, or circulator controller depending on system wiring.
- Precise Calibration: The visible scale and external adjustment screw allow for rapid, accurate setpoint changes without removing the cover.
- Rugged Reliability: Features a totally enclosed snap-acting switch to prevent dust and moisture interference in demanding HVAC environments.
- Flexible Installation: Universal mounting orientation (horizontal or vertical) simplifies replacement in diverse boiler configurations.
- Standardized Fit: 1/2" NPT well spud size ensures compatibility with the majority of standard immersion wells used in residential and light commercial hydronics.
Common Technical Questions:
Can the L4006A1967 be used as a circulator controller?
Yes. Because the SPST contacts break on temperature rise, it is typically used to cut power to a burner at a high limit. However, it can also be wired to manage circulator operation based on the 100-240 degree setpoint.
How does the adjustable differential affect the system?
The 5?F to 30?F adjustable differential determines the temperature drop required before the contacts re-close. Setting a wider differential can reduce equipment wear by preventing frequent on/off cycles.
Is this model a direct replacement for the L4006A1967/U?
Yes, the 'U' suffix simply denotes a "Universal" or Tradeline packaging designation. The technical specifications and internal components are identical.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $180.95
-65%$180.95
$63.33Honeywell L4006A1967 Controller
The Honeywell L4006A1967 is a trade-grade immersion-type Aquastat controller engineered for precise temperature regulation in hydronic systems, boilers, and liquid storage tanks. Featuring SPST contacts that break on temperature rise, this unit is commonly deployed as a high-limit or low-limit control. It utilizes a 3/8" x 2 7/8" copper sensing bulb paired with a 1 1/2" capillary for responsive thermal detection. The device supports an operating range of 100?F to 240?F and provides a 5?F to 30?F adjustable differential, allowing technicians to fine-tune cycling and prevent short-cycling of the burner or circulator pump. Built with a Micro Switch snap-acting mechanism, the L4006A1967 ensures reliable switching under load. The housing is designed for either horizontal or vertical mounting, offering maximum flexibility in tight mechanical rooms. This model includes a 1/2" well spud and is functionally identical to the L4006A1967/U, ensuring seamless integration into existing Honeywell Aquastat setups.
Key Benefits for the Contractor:
- Versatile Application: Functions effectively as either a high-limit regulator, low-limit control, or circulator controller depending on system wiring.
- Precise Calibration: The visible scale and external adjustment screw allow for rapid, accurate setpoint changes without removing the cover.
- Rugged Reliability: Features a totally enclosed snap-acting switch to prevent dust and moisture interference in demanding HVAC environments.
- Flexible Installation: Universal mounting orientation (horizontal or vertical) simplifies replacement in diverse boiler configurations.
- Standardized Fit: 1/2" NPT well spud size ensures compatibility with the majority of standard immersion wells used in residential and light commercial hydronics.
Common Technical Questions:
Can the L4006A1967 be used as a circulator controller?
Yes. Because the SPST contacts break on temperature rise, it is typically used to cut power to a burner at a high limit. However, it can also be wired to manage circulator operation based on the 100-240 degree setpoint.
How does the adjustable differential affect the system?
The 5?F to 30?F adjustable differential determines the temperature drop required before the contacts re-close. Setting a wider differential can reduce equipment wear by preventing frequent on/off cycles.
Is this model a direct replacement for the L4006A1967/U?
Yes, the 'U' suffix simply denotes a "Universal" or Tradeline packaging designation. The technical specifications and internal components are identical.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Honeywell L4006A1967 is a trade-grade immersion-type Aquastat controller engineered for precise temperature regulation in hydronic systems, boilers, and liquid storage tanks. Featuring SPST contacts that break on temperature rise, this unit is commonly deployed as a high-limit or low-limit control. It utilizes a 3/8" x 2 7/8" copper sensing bulb paired with a 1 1/2" capillary for responsive thermal detection. The device supports an operating range of 100?F to 240?F and provides a 5?F to 30?F adjustable differential, allowing technicians to fine-tune cycling and prevent short-cycling of the burner or circulator pump. Built with a Micro Switch snap-acting mechanism, the L4006A1967 ensures reliable switching under load. The housing is designed for either horizontal or vertical mounting, offering maximum flexibility in tight mechanical rooms. This model includes a 1/2" well spud and is functionally identical to the L4006A1967/U, ensuring seamless integration into existing Honeywell Aquastat setups.
Key Benefits for the Contractor:
- Versatile Application: Functions effectively as either a high-limit regulator, low-limit control, or circulator controller depending on system wiring.
- Precise Calibration: The visible scale and external adjustment screw allow for rapid, accurate setpoint changes without removing the cover.
- Rugged Reliability: Features a totally enclosed snap-acting switch to prevent dust and moisture interference in demanding HVAC environments.
- Flexible Installation: Universal mounting orientation (horizontal or vertical) simplifies replacement in diverse boiler configurations.
- Standardized Fit: 1/2" NPT well spud size ensures compatibility with the majority of standard immersion wells used in residential and light commercial hydronics.
Common Technical Questions:
Can the L4006A1967 be used as a circulator controller?
Yes. Because the SPST contacts break on temperature rise, it is typically used to cut power to a burner at a high limit. However, it can also be wired to manage circulator operation based on the 100-240 degree setpoint.
How does the adjustable differential affect the system?
The 5?F to 30?F adjustable differential determines the temperature drop required before the contacts re-close. Setting a wider differential can reduce equipment wear by preventing frequent on/off cycles.
Is this model a direct replacement for the L4006A1967/U?
Yes, the 'U' suffix simply denotes a "Universal" or Tradeline packaging designation. The technical specifications and internal components are identical.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
