Burnham Boiler 80160402 Aquastat

The Burnham Boiler 80160402 Aquastat is an essential high-limit immersion control engineered for precise hydronic heating system management. This SPST (Single Pole Single Throw) controller operates on a temperature rise to break the circuit, providing critical over-temperature protection for residential and commercial boilers. With a dedicated 180-240F temperature range and a fixed 15-degree Fahrenheit differential, it ensures stable thermal regulation and prevents rapid cycling. Designed as a direct OEM replacement part, it often replaces or cross-references with high-performance units like the Honeywell L4080B1261. The immersion sensing element is built for fast response times within the boiler's thermowell, maintaining system safety and operational efficiency. For contractors, the 80160402 offers a reliable mechanical interface and standard wiring terminals for streamlined boiler part replacement and long-term field performance in demanding environments.

• Precise High-Limit Protection: Restricts water temperatures between 180°F and 240°F to prevent system overheating.
• Fast-Acting Immersion Sensing: Direct liquid contact through the well ensures rapid thermal response and accurate switching.
• Universal Wiring Compatibility: Standard SPST break-on-rise logic facilitates straightforward integration into existing control circuits.
• Durable OEM Construction: Built to original Burnham manufacturer specifications for seamless fit and reliable operation.
• Fixed Differential Efficiency: The 15°F differential optimizes burner run times, reducing wear on the primary ignition components.

Is the 80160402 compatible with other boiler brands?
While manufactured for Burnham, this immersion aquastat is compatible with any hydronic system requiring a high-limit break-on-rise control within the 180-240°F range, provided the thermowell dimensions align.

Does this unit include the mounting well?
Standard replacement kits typically focus on the controller head and sensing bulb; it is designed to seat into existing 1/2-inch NPT thermowells commonly found in Burnham cast iron boilers.

What is the electrical rating for this aquastat?
This SPST control is generally rated for line voltage applications, often handling up to 8A at 120VAC or 5.1A at 240VAC, making it suitable for direct burner or circulator pump interlock.

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.