Resideo - Honeywell Home L4006A1959 Aquastat Controller

Resideo - Honeywell Home L4006A1959 Aquastat Controller is a reliable boiler thermostat and storage tank temperature control device designed for precise regulation and safety. This aquastat features a 3/8" copper bulb, 2-7/8" length, a 3" capillary, and a direct horizontal/vertical immersion well for flexible installation. With a fixed 5°F differential and a temperature range of 40–180°F (maximum rating 150°F), it delivers dependable temperature control for residential and light commercial systems.

• Copper bulb (3/8" diameter x 2-7/8" long) with a 3" capillary and direct immersion well for flexible horizontal or vertical mounting.
• Fixed 5°F differential provides stable temperature control between boiler and storage tank.
• Operating range 40–180°F with a 150°F maximum rating, suitable for a variety of heating setups.
• SPST contact, break on temperature rise; UL, CSA, AGA listed with clear load ratings.
• Electrical ratings: 8 A at 120 VAC / 5.1 A at 240 VAC (full load); 48 A at 120 VAC / 30.6 A at 240 VAC (locked rotor); 0.25 A at 0.25–12 V DC (millivolt).
• Conduit connection of 3/4" with screw terminals for secure wiring.
• Applications: boiler and storage tank heating systems; sensing bulb filled with toluene or silicone oil; includes heat-conductive compound.
• Overall dimensions: 2" W x 2-1/8" D x 5-5/8" H; pressure ratings 200 psi (capillary bulb) and 255 psi (immersion well).