Resideo L4006A1017 Aquastat Controller
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Resideo L4006A1017 Aquastat Controller

Resideo L4006A1017 Aquastat Controller

The Resideo L4006A1017 Aquastat Controller is a professional-grade immersion sensing device engineered for high-precision temperature regulation in hydronic heating systems and storage tanks. This Honeywell immersion controller features SPST contacts designed to break the circuit on a temperature rise, making it an ideal choice for both high-limit and low-limit safety applications. With a technical operating range of 100°F to 240°F and an adjustable 5°F to 30°F differential, this controller allows for fine-tuning system performance to ensure maximum efficiency. The L4006A1017 aquastat includes a 3/8" x 2 7/8" copper bulb and a 1 1/2" capillary length, providing accurate thermal feedback via direct immersion or a thermowell. Hydronic temperature controllers like this unit are critical for preventing boiler overheating while ensuring consistent domestic hot water temperatures. This HVAC limit control is built for versatility, supporting both horizontal and vertical mounting to accommodate tight manifold or boiler tapping configurations.

  • Precision Control: Features a visible dial and external adjustment screw for setting specific high or low temperature thresholds.
  • Rugged Reliability: Outfitted with an enclosed Micro Switch snap-acting mechanism to prevent contact pitting in demanding environments.
  • Adaptable Installation: Supports vertical or horizontal orientation with an included 1/2" NPT well spud for standard boiler tappings.
  • Versatile Electrical Compatibility: Rated for line voltage (120Vac/240Vac) and millivolt applications, suitable for modern and legacy systems.
  • Thermal Accuracy: Includes heat-conductive compound to enhance thermal transfer between the sensing bulb and the immersion well.

Common Questions

Is the L4006A1017 suitable for circulator pump control?
Yes, when used as a low-limit controller, it can manage circulator pump operation. However, because its SPST contacts break on temperature rise, it is most often used to cut power to a burner or primary heat source once the high-limit setpoint is reached.

What is the purpose of the 5-30 degree adjustable differential?
The differential prevents rapid cycling. Setting a wider differential ensures the system stays off or on until a significant temperature change occurs, reducing mechanical wear on the burner and electrical components.

Can this aquastat be used in direct immersion without a well?
While designed for use with an immersion well (included with this model), some 1/2" NPT tappings allow for direct sensing. For most pressurized boiler applications, using the thermowell is highly recommended to allow for future maintenance without draining the system.

This item is not eligible for free shipping.

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.

$81.49

Original: $232.83

-65%
Resideo L4006A1017 Aquastat Controller

$232.83

$81.49

Resideo L4006A1017 Aquastat Controller

The Resideo L4006A1017 Aquastat Controller is a professional-grade immersion sensing device engineered for high-precision temperature regulation in hydronic heating systems and storage tanks. This Honeywell immersion controller features SPST contacts designed to break the circuit on a temperature rise, making it an ideal choice for both high-limit and low-limit safety applications. With a technical operating range of 100°F to 240°F and an adjustable 5°F to 30°F differential, this controller allows for fine-tuning system performance to ensure maximum efficiency. The L4006A1017 aquastat includes a 3/8" x 2 7/8" copper bulb and a 1 1/2" capillary length, providing accurate thermal feedback via direct immersion or a thermowell. Hydronic temperature controllers like this unit are critical for preventing boiler overheating while ensuring consistent domestic hot water temperatures. This HVAC limit control is built for versatility, supporting both horizontal and vertical mounting to accommodate tight manifold or boiler tapping configurations.

  • Precision Control: Features a visible dial and external adjustment screw for setting specific high or low temperature thresholds.
  • Rugged Reliability: Outfitted with an enclosed Micro Switch snap-acting mechanism to prevent contact pitting in demanding environments.
  • Adaptable Installation: Supports vertical or horizontal orientation with an included 1/2" NPT well spud for standard boiler tappings.
  • Versatile Electrical Compatibility: Rated for line voltage (120Vac/240Vac) and millivolt applications, suitable for modern and legacy systems.
  • Thermal Accuracy: Includes heat-conductive compound to enhance thermal transfer between the sensing bulb and the immersion well.

Common Questions

Is the L4006A1017 suitable for circulator pump control?
Yes, when used as a low-limit controller, it can manage circulator pump operation. However, because its SPST contacts break on temperature rise, it is most often used to cut power to a burner or primary heat source once the high-limit setpoint is reached.

What is the purpose of the 5-30 degree adjustable differential?
The differential prevents rapid cycling. Setting a wider differential ensures the system stays off or on until a significant temperature change occurs, reducing mechanical wear on the burner and electrical components.

Can this aquastat be used in direct immersion without a well?
While designed for use with an immersion well (included with this model), some 1/2" NPT tappings allow for direct sensing. For most pressurized boiler applications, using the thermowell is highly recommended to allow for future maintenance without draining the system.

This item is not eligible for free shipping.

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

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Description

The Resideo L4006A1017 Aquastat Controller is a professional-grade immersion sensing device engineered for high-precision temperature regulation in hydronic heating systems and storage tanks. This Honeywell immersion controller features SPST contacts designed to break the circuit on a temperature rise, making it an ideal choice for both high-limit and low-limit safety applications. With a technical operating range of 100°F to 240°F and an adjustable 5°F to 30°F differential, this controller allows for fine-tuning system performance to ensure maximum efficiency. The L4006A1017 aquastat includes a 3/8" x 2 7/8" copper bulb and a 1 1/2" capillary length, providing accurate thermal feedback via direct immersion or a thermowell. Hydronic temperature controllers like this unit are critical for preventing boiler overheating while ensuring consistent domestic hot water temperatures. This HVAC limit control is built for versatility, supporting both horizontal and vertical mounting to accommodate tight manifold or boiler tapping configurations.

  • Precision Control: Features a visible dial and external adjustment screw for setting specific high or low temperature thresholds.
  • Rugged Reliability: Outfitted with an enclosed Micro Switch snap-acting mechanism to prevent contact pitting in demanding environments.
  • Adaptable Installation: Supports vertical or horizontal orientation with an included 1/2" NPT well spud for standard boiler tappings.
  • Versatile Electrical Compatibility: Rated for line voltage (120Vac/240Vac) and millivolt applications, suitable for modern and legacy systems.
  • Thermal Accuracy: Includes heat-conductive compound to enhance thermal transfer between the sensing bulb and the immersion well.

Common Questions

Is the L4006A1017 suitable for circulator pump control?
Yes, when used as a low-limit controller, it can manage circulator pump operation. However, because its SPST contacts break on temperature rise, it is most often used to cut power to a burner or primary heat source once the high-limit setpoint is reached.

What is the purpose of the 5-30 degree adjustable differential?
The differential prevents rapid cycling. Setting a wider differential ensures the system stays off or on until a significant temperature change occurs, reducing mechanical wear on the burner and electrical components.

Can this aquastat be used in direct immersion without a well?
While designed for use with an immersion well (included with this model), some 1/2" NPT tappings allow for direct sensing. For most pressurized boiler applications, using the thermowell is highly recommended to allow for future maintenance without draining the system.

This item is not eligible for free shipping.

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.

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