Burnham L7248 manual Sequence of Operation

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Figure 11A: Wiring Diagram for LE Boilers with Beckett AFG Burner and Split Controls

SEQUENCE OF OPERATION

A call for heat by the thermostat energizes the L7248C control which in turn energizes the R7184B primary control. The burner will initiate ignition after completing a 10 second pre-purge cycle. If burner ignites within approximately 45 seconds and the cad cell sees flame, the burner will continue to operate until the call for heat is satisfied or the setting of the high limit is reached. The circulator will operate as long as the thermostat is calling for heat. If the thermostat is not satisfied and the high limit is reached, the circulator will continue to operate, and the burner will stop until the high limit is closed by a drop in boiler water temperature.

Figure 11B: Wiring Diagram for LE Boilers with Beckett AFG Burner, EC5000 Control,

and Honeywell L4080B High Limit

SEQUENCE OF OPERATION

Refer to EC5000 Manual for wiring and operation details.

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Contents LE Series Important Information Please Read this page Carefully Table of Contents General InformationMinimum Installation Clearances To Combustible Materials Remove Crate II. Installation InstructionsRemoval of Boiler from Skid Page Page Install Electric Wiring Fuel Units and OIL LinesSINGLE-STAGE Units 3450 RPM TWO-PIPE Systems Sequence of Operation Wiring Diagram for LE Boilers with Riello Burner III. Operating and Service Instructions Press RED Reset ButtonDisplay Readout OperationHigh Limit Controller Remove GUN AssemblyAdjust OIL Burner Before Starting Open ALL OIL Line ValvesCAD Cell Location and Service Adjust OIL PressureOther Adjustments Adjust the AIR Band AND/OR AIR SHUT- TER Remove Flame Plug in Swing Door Start OIL BurnerCheck for Clean CUT OFF of Burner Test ControlsMake pH or Alkalinity Test Hints on CombustionAvoid Breathing Fiber Particulates and Dust High Altitude Installations Clean the Firetubes Close Boiler IV. Boiler CleaningAfter Cleaning Repair Parts Description Qty Part NumberLE Boiler Jacket & Insulation LE Bare Boiler Assembly Beckett AFG OIL Burner Repair Parts MOD E L LE1 LE2 Service Record VI. Low Water Cut Off Lwco WhenLimited Warranty

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.