Resideo - Honeywell Home L6006C1018 Aquastat Controller

Aquastat Controller by Resideo - Honeywell Home L6006C1018 provides precise boiler control with an adjustable high/low limit for reliable heating performance. This boiler control device supports direct horizontal or vertical surface mounting and uses a copper sensing bulb (3/8" diameter x 2-7/8" length) with an immersion well option to fit your boiler or storage-tank installation.

Operating range is 65–200°F with an adjustable differential of 5–30°F, and a factory stop set at 200°F to prevent overshoot. It features SPDT contacts for versatile switching, a 3/4" conduit connection, and screw-terminal wiring for secure connections. The unit is UL and CSA approved for safe boiler operation and is designed for both residential and commercial equipment.

• Application: Boiler and storage-tank control
• Temperature control: 65–200°F range; 5–30°F adjustable differential; 200°F factory stop; maximum 150°F rating
• Electrical: SPDT contact; 8 A at 120V AC (full load); 5.1 A at 240V AC; 48 A at 120V/30.6 A at 240V (locked rotor); millivolt compatibility 0.25 A at 0.25–12 V DC
• Connection & sensing: 3/4" conduit; screw terminals; copper sensing bulb with toluene or silicone oil; direct immersion well or surface mounting
• Certifications: UL and CSA approved
• Physical: 2" W x 2-1/8" D x 5-5/8" H; factory stop included at 200°F