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Burnham L7248 manual II. Installation Instructions, Remove Crate, Removal of Boiler from Skid

Models: L7248

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II. Installation Instructions

1.REMOVE CRATE

A.Remove all fasteners at crate skid.

B.Lift outside container and remove all other inside protective spacers and bracing. Remove container containing Safety Relief Valve, Boiler Drain Valve and Pipe Fittings.

2.REMOVAL OF BOILER FROM SKID

A.Tilt boiler, "walk" boiler backward, and set rear legs down on floor. Tilt boiler backward, pull skid forward and set front legs down on edge of skid. Install close coupling, tee, and plug in return coupling, see Step 7 and Figure 1. Point tee toward permanent return location.

B.Tilt boiler backward and remove skid. Be careful not to damage Burner and Jacket.

3.CHANGE HINGE POSITION if necessary.

A.Look at the area where boiler will be installed. If left side of boiler will be less than 12 inches from a wall, move hinges to right side of boiler. See B through I below.

B.Pull 2 halves of Burner Swing Door Interlock apart. Swing Door Interlock is connected to T-T terminals on R7184A Control. Lift Honeywell R7184A Control off of Burner Junction Box, open Burner Ignition Transformer and disconnect wiring harness from left side of burner. Find round plastic cover inside Junction Box and install in hole in left side of burner.

C.Remove 8 sheet metal screws from jacket. Remove rear jacket box and bend both sides of Jacket Wrapper up, see Figure 19.

D.Remove 2 (two) 5/16" - 18 x 3" long hex head cap screws and flatwashers from right side of door.

Remove 2 hairpin cotter pins and 2 hinge pins from hinges on left side of door and remove Door Assembly from boiler. Inspect Front and Rear Door Insulation Pieces and Combustion Chamber Liner, see Step 6.

E.Remove 4 hex nuts from bolts that attach hinges and hinge spacers to left side of Tubesheet. Remove 4 hex head cap screws that attach hinges to door.

F.Attach 2 hinge brackets & spacers to Tubesheet and 2 hinge brackets to Door on right side of boiler. 3 Holes in each Hinge Bracket must line up with 3 matching holes in Spacer, Tubesheet or Door. See Figure 3. Tighten hex nuts, bolts and screws by hand only.

G.Replace door assembly. Hinge brackets attached to door must rest on top of hinge brackets attached to tubesheet. See Figure 3. Slide hinge pins through hinges from top and install cotter pins. Close door and install 5/16" - 18 x 3" long hex head cap screws through flatwashers and left side of door and into tapped holes in tubesheet. Tighten all hex nuts, bolts and screws. When door is installed properly, it is parallel to Tubesheet when viewed from top and sides.

H.Bend sides of Jacket Wrapper down and attach 2 Jacket Straps to 4 slots at bottom of Jacket Wrapper sides with sheet metal screws. Install Rear Jacket Box with 4 sheet metal screws. See Figure 19.

I.Connect wiring harness to a knockout on right side of Junction Box and install Honeywell R7184A Control, see Wiring Diagram, Figures 11A and 11B.

Reconnect Swing Door Interlock.

Figure 3: Hinge Installation & Assembly, LE Boiler



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Burnham L7248 manual II. Installation Instructions, Remove Crate, Removal of Boiler from Skid
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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.