Resideo L4008E1156 Control
The Resideo L4008E1156 is a professional-grade, remote-bulb immersion-type temperature control engineered for high-limit safety applications in hydronic boilers and storage tanks. This high-limit aquastat features a manual reset mechanism, ensuring that the system shuts down safely if temperatures exceed the 250 degree factory stop. Built for reliability, this controller uses a micro switch snap-acting switch with a single pole, single throw (SPST) configuration that breaks the circuit on temperature rise. The unit monitors liquid temperatures across a 130 to 270 degree F range using a 66-inch liquid-filled capillary and a 3/8 x 2-7/8 inch copper sensing element. Designed for versatility in the field, it supports both horizontal and vertical mounting and includes heat-conductive compound for optimal thermal transfer between the bulb and the immersion well. This HVAC temperature controller is an essential safety component for contractors managing residential or commercial heating loops.
- Rapid Response: The liquid-filled copper bulb detects and reacts to rapid temperature fluctuations to protect system integrity.
- Flexible Installation: Remote 5-1/2 foot capillary allows for versatile case placement away from the sensing point, supporting vertical or horizontal orientation.
- Enhanced Safety: Manual reset functionality and a factory-set 250°F stop provide fail-safe protection in high-limit scenarios.
- Universal Compatibility: Works with millivolt (0.25A @ 12VDC) and standard line voltage (120V/240VAC) systems, making it a reliable choice for diverse boiler setups.
Common Questions
Does this unit automatically restart once the temperature drops?
No, the L4008E1156 is a manual reset control. This ensures a technician or operator must inspect the system and manually push the reset button before it resumes operation after a high-limit event.
Can the temperature setpoint be adjusted in the field?
Yes, while it includes a factory stop at 250°F, the operating range is adjustable from 130°F to 270°F using the visible scale and external adjustment screw.
Is an immersion well included with this model?
This specific model includes the heat-conductive compound and the capillary bulb assembly, but generally requires a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) for direct-immersion applications.
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.
Original: $227.42
-65%$227.42
$79.60Resideo L4008E1156 Control
The Resideo L4008E1156 is a professional-grade, remote-bulb immersion-type temperature control engineered for high-limit safety applications in hydronic boilers and storage tanks. This high-limit aquastat features a manual reset mechanism, ensuring that the system shuts down safely if temperatures exceed the 250 degree factory stop. Built for reliability, this controller uses a micro switch snap-acting switch with a single pole, single throw (SPST) configuration that breaks the circuit on temperature rise. The unit monitors liquid temperatures across a 130 to 270 degree F range using a 66-inch liquid-filled capillary and a 3/8 x 2-7/8 inch copper sensing element. Designed for versatility in the field, it supports both horizontal and vertical mounting and includes heat-conductive compound for optimal thermal transfer between the bulb and the immersion well. This HVAC temperature controller is an essential safety component for contractors managing residential or commercial heating loops.
- Rapid Response: The liquid-filled copper bulb detects and reacts to rapid temperature fluctuations to protect system integrity.
- Flexible Installation: Remote 5-1/2 foot capillary allows for versatile case placement away from the sensing point, supporting vertical or horizontal orientation.
- Enhanced Safety: Manual reset functionality and a factory-set 250°F stop provide fail-safe protection in high-limit scenarios.
- Universal Compatibility: Works with millivolt (0.25A @ 12VDC) and standard line voltage (120V/240VAC) systems, making it a reliable choice for diverse boiler setups.
Common Questions
Does this unit automatically restart once the temperature drops?
No, the L4008E1156 is a manual reset control. This ensures a technician or operator must inspect the system and manually push the reset button before it resumes operation after a high-limit event.
Can the temperature setpoint be adjusted in the field?
Yes, while it includes a factory stop at 250°F, the operating range is adjustable from 130°F to 270°F using the visible scale and external adjustment screw.
Is an immersion well included with this model?
This specific model includes the heat-conductive compound and the capillary bulb assembly, but generally requires a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) for direct-immersion applications.
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
Product Information
Shipping & Returns
Shipping & Returns
Description
The Resideo L4008E1156 is a professional-grade, remote-bulb immersion-type temperature control engineered for high-limit safety applications in hydronic boilers and storage tanks. This high-limit aquastat features a manual reset mechanism, ensuring that the system shuts down safely if temperatures exceed the 250 degree factory stop. Built for reliability, this controller uses a micro switch snap-acting switch with a single pole, single throw (SPST) configuration that breaks the circuit on temperature rise. The unit monitors liquid temperatures across a 130 to 270 degree F range using a 66-inch liquid-filled capillary and a 3/8 x 2-7/8 inch copper sensing element. Designed for versatility in the field, it supports both horizontal and vertical mounting and includes heat-conductive compound for optimal thermal transfer between the bulb and the immersion well. This HVAC temperature controller is an essential safety component for contractors managing residential or commercial heating loops.
- Rapid Response: The liquid-filled copper bulb detects and reacts to rapid temperature fluctuations to protect system integrity.
- Flexible Installation: Remote 5-1/2 foot capillary allows for versatile case placement away from the sensing point, supporting vertical or horizontal orientation.
- Enhanced Safety: Manual reset functionality and a factory-set 250°F stop provide fail-safe protection in high-limit scenarios.
- Universal Compatibility: Works with millivolt (0.25A @ 12VDC) and standard line voltage (120V/240VAC) systems, making it a reliable choice for diverse boiler setups.
Common Questions
Does this unit automatically restart once the temperature drops?
No, the L4008E1156 is a manual reset control. This ensures a technician or operator must inspect the system and manually push the reset button before it resumes operation after a high-limit event.
Can the temperature setpoint be adjusted in the field?
Yes, while it includes a factory stop at 250°F, the operating range is adjustable from 130°F to 270°F using the visible scale and external adjustment screw.
Is an immersion well included with this model?
This specific model includes the heat-conductive compound and the capillary bulb assembly, but generally requires a compatible 1/2-inch or 3/4-inch NPT immersion well (sold separately) for direct-immersion applications.
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.
