McDonnell & Miller Low Water Cut-Off with Manual Reset (MPN: 149400)

Reliable Protection for Your Boiler – McDonnell & Miller Low Water Cut-Off

When it comes to maintaining the safety and efficiency of your boiler system, the McDonnell & Miller Low Water Cut-Off is an essential component that ensures reliable operation. This mechanical low water cut-off is designed to prevent boiler damage by automatically shutting off the system when water levels drop too low, safeguarding your investment and providing peace of mind.

With its robust construction and dependable performance, this low water cut-off is trusted by professionals and DIY homeowners alike. Whether you're a seasoned contractor or a first-time installer, this product is engineered to meet the demands of any heating system.

Why Choose McDonnell & Miller?

McDonnell & Miller has a long-standing reputation in the plumbing and HVAC industry for producing high-quality, reliable products. Their low water cut-offs are designed with precision and built to last, ensuring that your boiler operates safely and efficiently. With a commitment to excellence, McDonnell & Miller products are a go-to choice for professionals who value performance and durability.

Key Features of the McDonnell & Miller Low Water Cut-Off

• ✅ Mechanical Operation – Ensures reliable performance without the need for electrical components.
• ✅ Quick Hook-Up Fittings – Simplifies installation, saving you time and effort.
• ✅ Manual Reset Switch – Provides easy control and ensures safety during operation.
• ✅ Large Float Chamber – Enhances reliability by allowing for accurate water level detection.
• ✅ Dual Precision Switches – Guarantees dependable operation for both low water cut-off and alarm functions.
• ✅ Durable Construction – Built to withstand the rigors of steam and hot water systems.

Technical Specifications

• Pressure Rating: 20 psi
• Switching Capacity: 3.7 FLA/22.2 LRA at 240 VAC
• Connection Size: 3/8 inch
• Voltage: 120/240 VAC
• Warranty: 1 Year from the Date of Installation or 2 Years from the Date of Manufacture

Installation Complexity

Installing the McDonnell & Miller Low Water Cut-Off is best suited for professionals due to the technical knowledge required for proper setup. While the quick hook-up fittings simplify the process, it is crucial to ensure that the installation complies with local codes and standards. We recommend hiring a licensed plumber or HVAC technician to guarantee optimal performance and safety.

What Pros & DIYers Need to Know

For Pro Contractors: This low water cut-off meets the rigorous demands of job sites, providing durability and reliability that professionals trust. Its mechanical design eliminates the risk of electrical failure, making it a dependable choice for any heating system.

For DIY Homeowners: While this product is designed for ease of installation, we advise that you consult with a professional to ensure proper setup. Having the right tools and knowledge is essential to avoid potential pitfalls during installation.

Why Buy from PSAM?

At PSAM, we prioritize quality and reliability. When you purchase the McDonnell & Miller Low Water Cut-Off from us, you can be confident that you're getting a product that meets the highest industry standards. Avoid the risks associated with low-quality alternatives from big-box stores—our products are sourced from trusted manufacturers, ensuring better performance and fewer failures.

Don’t Compromise on Safety!

Invest in the McDonnell & Miller Low Water Cut-Off today and protect your boiler system from potential damage. With its reliable performance and robust construction, you can trust that your heating system will operate safely and efficiently. Order now and experience the peace of mind that comes with quality assurance!

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