Honeywell L6006A1145 Control

The Honeywell L6006A1145 Aquastat Controller is a professional-grade immersion-type liquid temperature controller designed for hydronic heating systems. This versatile unit functions as a high-limit, low-limit, or circulator control, depending on your wiring configuration. Featuring SPDT switching, it provides reliable break-on-rise or make-on-rise operation within a temperature range of 100°F to 240°F. The 3/8" x 2-7/8" copper bulb and 3" capillary ensure precise thermal response, while the 5°F to 30°F adjustable differential allows for fine-tuning system cycles to prevent short-cycling. Engineered for horizontal mounting, this Honeywell L6006A1145 serves as the direct replacement for 100189-01. It is built to handle the rigorous demands of commercial and residential boilers, ensuring stable aquastat control and preventing overheating in hydronic loops. The rugged construction and standardized boiler temperature limit settings make it a staple for field repairs and system optimizations.

Key Technical Benefits

• Versatile SPDT Switching: Allows for flexible application as a circulator controller or a high/low temperature limit.
• Adjustable Differential: Field-adjustable settings between 5°F and 30°F provide superior control over thermal lag and equipment cycling.
• Direct OEM Compatibility: Specifically designed to replace the 100189-01, reducing installation time and ensuring exact fitment.
• Wide Operating Range: Supports a broad temperature spectrum from 100°F to 240°F, suitable for various hydronic configurations.
• Proven Reliability: Features a liquid-filled sensing element for consistent accuracy across the aquastat controller lifecycle.

Common Technical Questions

How do I wire the L6006A1145 for circulator versus high limit control?
Technicians should use the R and B terminals for break-on-rise (high limit) or R and W terminals for make-on-rise (circulator) applications.

Does this unit require a specific immersion well?
While the L6006A1145 includes a 3/8" x 2-7/8" bulb, it is compatible with standard 1/2" or 3/4" NPT immersion wells. Heat conductive compound should always be used for accurate sensing.

Can the Honeywell L6006A1145 be mounted vertically?
This specific model is engineered for horizontal mounting to ensure optimal internal component alignment and capillary protection.

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.