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Burnham L7248 manual Install Electric Wiring, Fuel Units and OIL Lines

Models: L7248

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8.INSTALL SMOKEPIPE — The LE should be vented into a fireclay tile-lined masonry chimney or a chimney constructed from Type L Vent or a factory built chimney that complies with the Type HT requirement, of UL103. The chimney and vent pipe shall have a sufficient draft at all times, to assure safe proper operation of the boiler. See Figure 7 for recommended installation.

Figure 7

A.Install the draft regulator following the instructions furnished with the regulator. See Figure 8 for alternate draft regulator locations.

Figure 8

B.Consider the chimney overall. Chimneys that have a high heat loss may become less suitable as the heat loss of the home goes down and the efficiency of the boiler installed goes up. Most homes have a chimney appropriate for the fuel and the era in which the home was built. That may have been a coal fired or an inefficient oil fired boiler built into

a home without insulation or storm windows. With increasing fuel prices that home probably has been insulated and fitted with storm windows so that the heat loss of the home has been reduced. This requires less fuel to be burned and sends less heat up the chimney.

A new boiler probably has a higher efficiency than the boiler being replaced. That probably means that the stack temperature from the new boiler will be lower than that from the old boiler and with less room air being drawn up the chimney to dilute the stack gases. The combination of a large uninsulated chimney, reduced firing rate, reduced firing time, lower stack temperature and less dilution air can, in some cases, contribute to the condensing of small amounts of water vapor in the chimney. Such condensation, when it occurs, can cause chimney deterioration. In extreme cases, condensed water may be visible on the outside of the breeching or chimney. In those extreme cases, the chimney may have to be lined to insulate the chimney and thus prevent the condensation. The addition of dilution air into the chimney may assist in drying the chimney interior surfaces.

C.Heat extractors mounted into the breeching are not recommended.

9.INSTALL ELECTRIC WIRING

A.Follow the National Electrical Code and local regulations. A separate electrical circuit must be run from the main electrical service with an over- current device/disconnect in the circuit. A service switch is recommended and may be required by some local jurisdictions. Wiring should conform to Figures 11A, 11B and 11C.

B.CANADA — Refer to CSA standard C22.2 Part 1, 1990, Electrical Features of Fuel Burning Equip- ment (Gas and Oil).

C.If boiler is installed in Canada, a blocked vent safety switch must be installed. Refer to Blocked Vent Safety Switch Instruction Supplement provided with boiler (Canada only).

10.FUEL UNITS AND OIL LINES

Use flexible oil line(s) so that Swing Door can be opened without disconnecting oil supply.

A supply line fuel oil filter is recommended as a minimum for all firing rates but a pleated paper fuel oil filter is recommended for the lowest (.6 GPH) firing rate application to prevent nozzle fouling.

SINGLE-PIPE OIL LINES — Standard burners are provided with single-stage 3450 rpm fuel units with the by-pass plug removed for single-pipe installations.

The single-stage fuel unit may be installed single-pipe with gravity feed or lift. Maximum allowable lift is 8 feet. See Figure 9.

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Burnham L7248 manual Install Electric Wiring, Fuel Units and OIL Lines
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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.