Resideo - Honeywell Home L4006A2007 Aquastat Controller

The Aquastat Controller L4006A2007 from Resideo/Honeywell Home delivers precise boiler control and reliable storage-tank temperature management. This durable Aquastat Controller combines a copper bulb, long capillary, and a direct immersion well for fast, accurate sensing, making it ideal as a boiler control or storage-tank regulator. The unit supports a wide temperature range (100 to 240 °F) with an adjustable differential (5 to 30 °F) to optimize energy use while safeguarding equipment. Its robust electrical ratings and SPST contact with break-on-temperature rise provide dependable operation in demanding systems. Approved by UL, CSA, and AGA, it’s built for longevity in professional installations.

• Applications: Boiler, Storage Tank
• Temperature sensing: 3/8 in diameter x 2-7/8 in length copper bulb; 3 in capillary; direct immersion well
• Electrical connections: 3/4 in conduit; screw terminal; SPST contact
• Ratings: 8 A at 120 V AC / 5.1 A at 240 V AC (full load); 48 A at 120 V AC / 30.6 A at 240 V AC (locked rotor)
• Pressure & liquids: 200 PSI (capillary bulb); 255 PSI (immersion well); sensing liquid: toluene or silicone oil
• Dimensions: 2 in W x 2-1/8 in D x 5-5/8 in H
• Differential: 5–30 °F adjustable
• Approvals: UL, CSA, AGA