Honeywell L4006A2007 Aquastat Immersion Temp Control High/Low Limit 100–240°F

The Honeywell L4006A2007 Immersion Aquastat is a reliable, industry-standard temperature controller designed for hydronic heating systems, boilers, and hot water storage tanks. This immersion-type aquastat provides high or low temperature limit control, helping protect equipment while maintaining consistent operating temperatures.

The open-on-rise switching action makes this control ideal for safety limit or circulator applications. It features an adjustable temperature range from 100°F to 240°F with a 5°F–30°F adjustable differential, allowing precise control for commercial and industrial HVAC systems.

The 3/8″ x 3″ sensing bulb inserts horizontally into an immersion well (not included), delivering accurate temperature sensing in water or other compatible liquids. Built with Honeywell’s proven durability, this control is commonly used in boilers, hydronic loops, and heating storage tanks.

Key Benefits:

• Trusted Honeywell / Resideo quality

• High or low limit temperature control

• Adjustable differential for precise operation

• Compatible with 120V and 240V systems

• Ideal for boiler and hydronic heating applications

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.