Resideo L6008A1242 Control
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Resideo L6008A1242 Control

Resideo L6008A1242 Control

The Resideo L6008A1242 is a professional-grade remote bulb immersion aquastat engineered for high-precision liquid temperature regulation in hydronic heating systems. Ideal for use as a circulator control or low limit controller, this unit features a single pole double throw (SPDT) switching action, allowing it to break the circuit on temperature fall or rise depending on your wiring configuration. It operates within a 100°F to 200°F temperature range and includes a 5-1/2 foot capillary length for flexible remote sensing in boilers and storage tanks. The adjustable differential settings of 5°F to 30°F provide technicians with the granular control needed to prevent rapid equipment cycling and optimize system efficiency. Built for durability in demanding mechanical rooms, the totally enclosed Micro Switch snap-acting switches ensure reliable performance under high-duty cycles. The device supports both horizontal and vertical mounting, adapting easily to existing manifold or tank ports.

Technical Specifications

  • Application: Low Limit and Circulator Control
  • Switching Action: SPDT (Single Pole Double Throw)
  • Operating Temperature: 100°F to 200°F (38°C to 93°C)
  • Differential Temperature: 5°F to 30°F (3°C to 17°C) Adjustable
  • Capillary Length: 66 inches (5-1/2 feet)
  • Bulb Size: 3/8-inch x 2-7/8-inch Copper
  • Electrical Ratings: 8.0 AFL / 48.0 ALR @ 120VAC; 5.1 AFL / 30.6 ALR @ 240VAC
  • Mounting: Vertical or Horizontal

Key Benefits for Contractors

  • Application Versatility: Dual-function Honeywell L6008A1242 design serves as a primary circulator relay or a safety low-limit protection device.
  • Precise Response: The copper remote sensing element detects rapid fluid temperature shifts to maintain stable setpoints.
  • Simplified Setup: Features a visible control point scale and an external adjustment screw for fast field calibration.
  • Installation Flexibility: Long 66-inch capillary and multi-directional mounting options permit placement in tight boiler cabinets.

Common Questions

How do I wire the L6008A1242 for circulator control?
For standard circulator operation, use the R-B terminals to make the circuit on temperature rise. For low-limit applications, use the R-W terminals to break the circuit if the temperature drops below your setpoint.

Does this aquastat require an immersion well?
Yes, for liquid-sensing applications, the bulb should be inserted into a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) to protect the capillary and ensure accurate thermal transfer.

Can the L6008A1242 be used with millivolt systems?
Yes, the snap-acting SPDT switch is rated for 0.25 A at 0.25 to 12 VDC, making it compatible with Powerpile or other millivolt gas valve circuits.

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.

$305.38
Resideo L6008A1242 Control
$305.38

Resideo L6008A1242 Control

The Resideo L6008A1242 is a professional-grade remote bulb immersion aquastat engineered for high-precision liquid temperature regulation in hydronic heating systems. Ideal for use as a circulator control or low limit controller, this unit features a single pole double throw (SPDT) switching action, allowing it to break the circuit on temperature fall or rise depending on your wiring configuration. It operates within a 100°F to 200°F temperature range and includes a 5-1/2 foot capillary length for flexible remote sensing in boilers and storage tanks. The adjustable differential settings of 5°F to 30°F provide technicians with the granular control needed to prevent rapid equipment cycling and optimize system efficiency. Built for durability in demanding mechanical rooms, the totally enclosed Micro Switch snap-acting switches ensure reliable performance under high-duty cycles. The device supports both horizontal and vertical mounting, adapting easily to existing manifold or tank ports.

Technical Specifications

  • Application: Low Limit and Circulator Control
  • Switching Action: SPDT (Single Pole Double Throw)
  • Operating Temperature: 100°F to 200°F (38°C to 93°C)
  • Differential Temperature: 5°F to 30°F (3°C to 17°C) Adjustable
  • Capillary Length: 66 inches (5-1/2 feet)
  • Bulb Size: 3/8-inch x 2-7/8-inch Copper
  • Electrical Ratings: 8.0 AFL / 48.0 ALR @ 120VAC; 5.1 AFL / 30.6 ALR @ 240VAC
  • Mounting: Vertical or Horizontal

Key Benefits for Contractors

  • Application Versatility: Dual-function Honeywell L6008A1242 design serves as a primary circulator relay or a safety low-limit protection device.
  • Precise Response: The copper remote sensing element detects rapid fluid temperature shifts to maintain stable setpoints.
  • Simplified Setup: Features a visible control point scale and an external adjustment screw for fast field calibration.
  • Installation Flexibility: Long 66-inch capillary and multi-directional mounting options permit placement in tight boiler cabinets.

Common Questions

How do I wire the L6008A1242 for circulator control?
For standard circulator operation, use the R-B terminals to make the circuit on temperature rise. For low-limit applications, use the R-W terminals to break the circuit if the temperature drops below your setpoint.

Does this aquastat require an immersion well?
Yes, for liquid-sensing applications, the bulb should be inserted into a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) to protect the capillary and ensure accurate thermal transfer.

Can the L6008A1242 be used with millivolt systems?
Yes, the snap-acting SPDT switch is rated for 0.25 A at 0.25 to 12 VDC, making it compatible with Powerpile or other millivolt gas valve circuits.

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

Shipping & Returns

Description

The Resideo L6008A1242 is a professional-grade remote bulb immersion aquastat engineered for high-precision liquid temperature regulation in hydronic heating systems. Ideal for use as a circulator control or low limit controller, this unit features a single pole double throw (SPDT) switching action, allowing it to break the circuit on temperature fall or rise depending on your wiring configuration. It operates within a 100°F to 200°F temperature range and includes a 5-1/2 foot capillary length for flexible remote sensing in boilers and storage tanks. The adjustable differential settings of 5°F to 30°F provide technicians with the granular control needed to prevent rapid equipment cycling and optimize system efficiency. Built for durability in demanding mechanical rooms, the totally enclosed Micro Switch snap-acting switches ensure reliable performance under high-duty cycles. The device supports both horizontal and vertical mounting, adapting easily to existing manifold or tank ports.

Technical Specifications

  • Application: Low Limit and Circulator Control
  • Switching Action: SPDT (Single Pole Double Throw)
  • Operating Temperature: 100°F to 200°F (38°C to 93°C)
  • Differential Temperature: 5°F to 30°F (3°C to 17°C) Adjustable
  • Capillary Length: 66 inches (5-1/2 feet)
  • Bulb Size: 3/8-inch x 2-7/8-inch Copper
  • Electrical Ratings: 8.0 AFL / 48.0 ALR @ 120VAC; 5.1 AFL / 30.6 ALR @ 240VAC
  • Mounting: Vertical or Horizontal

Key Benefits for Contractors

  • Application Versatility: Dual-function Honeywell L6008A1242 design serves as a primary circulator relay or a safety low-limit protection device.
  • Precise Response: The copper remote sensing element detects rapid fluid temperature shifts to maintain stable setpoints.
  • Simplified Setup: Features a visible control point scale and an external adjustment screw for fast field calibration.
  • Installation Flexibility: Long 66-inch capillary and multi-directional mounting options permit placement in tight boiler cabinets.

Common Questions

How do I wire the L6008A1242 for circulator control?
For standard circulator operation, use the R-B terminals to make the circuit on temperature rise. For low-limit applications, use the R-W terminals to break the circuit if the temperature drops below your setpoint.

Does this aquastat require an immersion well?
Yes, for liquid-sensing applications, the bulb should be inserted into a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) to protect the capillary and ensure accurate thermal transfer.

Can the L6008A1242 be used with millivolt systems?
Yes, the snap-acting SPDT switch is rated for 0.25 A at 0.25 to 12 VDC, making it compatible with Powerpile or other millivolt gas valve circuits.

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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