White-Rodgers 11B18-153 Control

The White-Rodgers 11B18-153 is a purpose-built hydronic immersion control designed specifically for swimming pool temperature regulation and high-limit safety applications. As a veteran-grade well immersion control, this unit offers a precise temperature range of 35°F to 110°F (2°C to 43°C), making it ideal for maintaining steady thermal conditions in sensitive water-heating systems. The SPST switch action is configured for open-on-rise operation, effectively breaking the circuit when temperatures exceed your setpoint. This control features a 2°F fixed differential, ensuring rapid response times and preventing excessive temperature overshoot in the loop. For versatile field installation, the 11B18-153 supports both vertical and horizontal mounting and includes a 1/2-inch standard shank well (NPT) for direct immersion. Built with rugged components and screw terminals with “ears” to secure both solid and stranded wiring, it delivers the consistent SPST cooling and heating control performance that professional contractors expect from the White-Rodgers 11B series.

• Precise Regulation: Reliable 35-110°F range tailored for swimming pool hydronic systems.
• Fixed Differential: Professional-grade 2°F differential minimizes thermal lag and provides tight temperature control.
• Flexible Mounting: Universal chassis allows for vertical or horizontal orientation depending on pipe clearance.
• Complete Kit: Ships with a 1/2" NPT immersion well included for immediate installation into the system manifold.
• Break on Rise: Optimized open on rise logic for high-limit protection and system safety.

Is the immersion well included with the 11B18-153?
Yes, this unit comes factory-supplied with a 1/2-inch NPT standard shank well for direct immersion into the fluid stream.

Can this control be mounted in any orientation?
The 11B18-153 is designed for versatile field use and can be mounted either horizontally or vertically without affecting switch reliability.

What is the electrical rating for the contacts?
The SPST contacts are rated for 10.0 Amps at 120 VAC and 6.0 Amps at 240 VAC, suitable for most residential and light commercial pool heating loads.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.