Aquastat Hi/Lo Limit Controller | NBK-21048

NBK-21048 – Aquastat Hi/Lo Limit Controller 

The NBK-21048 Aquastat Hi/Lo Limit Controller provides dependable temperature control for outdoor boilers, hydronic heating systems, and other water-based heating applications. This controller regulates both high and low temperature cut-offs, protecting equipment from overheating while ensuring efficient heat distribution.

Key Features

• Hi/Lo Limit Control – Provides precise high and low temperature cut-out points to protect heating systems and maintain optimal performance
• Adjustable Differential – Fine-tune system cycling to meet specific heating requirements
• Reliable Operation – Activates or deactivates burners or circulators based on temperature thresholds, preventing overheating
• Versatile Mounting – Ideal for outdoor boilers and hydronic systems requiring direct immersion or surface mounting

Specifications

• SKU: 21048
• Category: Outdoor Boiler / Limit Controllers
• Type: Aquastat Hi/Lo Limit Controller
• Application: Suitable for outdoor wood boilers, radiant floor heating systems, and hot water tanks

Equivalent To

• Honeywell: L6006A1145

Common Applications

• Outdoor wood boilers and hydronic heating systems
• Heating loops requiring dependable high-limit protection
• Hot water storage tanks with controlled temperature cycling

Why Choose This Aquastat

The NBK-21048 offers Honeywell-equivalent reliability and precision, giving you full control over system temperature limits for safety and efficiency. Its durable construction ensures consistent performance in demanding environments and extends equipment life through stable heat regulation.