IV. Boiler Cleaning

WARNING

All boiler cleaning must be completed with burner service switch turned off. Boilers equipped with burner swing door have a potential haz ard which can cause severe property damage, personal injury or loss of life if ignored. Before opening swing door, turn off service switch to boiler to prevent accidental firing of burner outside the combustion chamber. Be sure to tighten swing door fastener completely when service is completed.

1. CLEAN THE FIRETUBES

4. CLOSE BOILER

A.For access to fireside of boiler, pull two halves of

Burner Swing Door Interlock wiring harness apart, remove hex nuts holding door closed and open swing door.

B.Prior to cleaning boiler, lay a protective cloth or plastic over combustion chamber liner.

C.Using a 1 1/2" diameter wire brush (30" handle), clean firetubes. Measure 15" from end of brush opposite handle, and mark handle. DO NOT allow this mark to go past front end of firetube during cleaning, or brush will hit rear door insulation piece.

2. CLEAN THE COMBUSTION CHAMBER Using wire or fiber bristle brush, clean inside of combustion chamber. DO NOT let brush hit rear door insulation piece or combustion chamber liner.

3. AFTER CLEANING

Vacuum debris inside bottom of rear door, remove protective cloth, and vacuum remaining fireside of boiler as necessary. BE CAREFUL not to damage liner or rear door insulation piece. Inspect front and rear door insulation pieces, front door gaskets and combustion chamber liner for damage. Replace any damaged pieces.

CAUTION: Do not start burner unless burner swing door is securely closed. Close door, install hex nuts, and tighten securely. Door should be parallel to tubesheet when viewed from top and sides. Reconnect two halves of Swing Door Interlock.

WARNING

The boiler must be connected to an approved chimney in good condition. Serious property damage could result if the boiler is connected to a dirty or inadequate chimney. The interior of the chimney flue must be inspected and cleaned before the start of the heating season and should be inspected periodically throughout the heating season for any obstructions. A clean and unobstructed chimney flue is necessary to allow noxious fumes that could cause injury or loss of life to vent safely and will contribute toward maintaining the boiler's efficiency.

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Burnham L7248 manual IV. Boiler Cleaning, Clean the Firetubes Close Boiler, After Cleaning
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L7248 specifications

The Burnham L7248 is a notable model in the realm of heating solutions, designed specifically for residential and commercial use. Renowned for its efficiency and reliability, the L7248 embodies innovative technology combined with user-friendly features, catering to diverse heating needs.

One of the key features of the Burnham L7248 is its advanced heating technology. It employs a gas-fired system that provides both hot water and space heating. This dual-function capability ensures that homes remain warm and comfortable during the colder months while also supplying hot water for daily use. The integrated control system allows users to manage the heating effectively, ensuring maximum comfort with minimal energy expenditure.

The L7248 is designed with durability in mind. Constructed from high-quality materials, the boiler is built to withstand the rigors of regular use while maintaining peak performance. Its advanced heat exchanger design enhances efficiency by ensuring optimal heat transfer, which translates to lower energy costs and a reduced environmental footprint. Furthermore, the unit operates quietly, providing a peaceful environment without intrusive noise.

In terms of safety, the Burnham L7248 incorporates several features that protect both the system and the home. It is equipped with advanced safety controls that monitor pressure and temperature, preventing potential hazards. Additionally, the unit’s design allows for easy servicing and maintenance, ensuring that it remains in good working condition for many years.

Energy efficiency is another hallmark of the Burnham L7248. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the model significantly reduces fuel consumption, helping homeowners save on energy bills while promoting sustainability. The boiler is also compatible with various smart home technologies, allowing users to integrate it into their existing systems for enhanced control and efficiency.

Overall, the Burnham L7248 stands out for its combination of innovative technology, safety features, and energy efficiency. Whether for residential or commercial applications, it provides a solid, reliable heating solution that meets the demands of modern living. With its user-focused design and robust performance characteristics, the Burnham L7248 is an excellent investment for those seeking dependable and efficient heating.
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