Resideo by Honeywell L4006B1163 Circulator Aquastat Controller 100-240°F SPST

The Resideo by Honeywell L4006B1163 is a circulator aquastat controller designed for limiting or regulating the temperature of liquids in boilers, storage tanks, and hydronic heating systems. This immersion-type temperature control device features a 100-240°F operating range with an adjustable 5-30°F differential, making it ideal for circulator pump control applications.

Key Features:

• SPST contacts make on temperature rise (reverse acting) - contacts close when temperature increases to setpoint
• Totally enclosed Micro Switch™ snap-acting switches for reliable operation
• Adjustable differential range: 5°F to 30°F allows precise temperature control
• Visible control point scale with external adjustment screw for easy setting
• Horizontal or vertical insertion of sensing element for flexible installation
• Direct or well immersion mounting capability
• 3-inch capillary length with 3/8-inch probe diameter
• Includes heat-conductive compound for improved thermal transfer
• 3/4-inch NPT spud size

Electrical Ratings: 8A @ 120VAC, 5.1A @ 240VAC full load; 48A @ 120VAC, 30.6A @ 240VAC locked rotor; 0.25A @ 0.25-12VDC inductive.

This controller delays circulator operation when boiler water temperature is below the control setting, ensuring efficient system operation. Compact dimensions (5-5/8" H x 2" W x 2-1/8" D) make installation straightforward in most applications. UL listed and MBPR2/MP466 compliant.