Burnham V7 SERIES manual Recommended Smokepipe Arrangement Chimney Requirements

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Fig. 13: Recommended Smokepipe Arrangement

and Chimney Requirements

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.

A massive chimney on a cold, or exposed outside wall may have produced adequate draft when it was fired with a higher input and greater volumes of heated gases. With reduced input and volume, the draft may be severely affected. In one instance our research showed a new chimney of adequate sizing produced only -.035" W.C. after 30 minutes of continuous firing at 13.0% CO2. Outside wall chimneys take longer to heat up and can have .00" W.C. draft at burner startup. You may have to consider a special alloy chimney flue liner with insulation around it and a stabilizing draft cap or even a draft inducing fan in severe cases.

Fig. 14: Proper and Improper Locations

of Draft Regulator

3.For the same reasons as in (2.) above, heat extractors mounted into the breeching are not recommended.

H.INSTALL ELECTRIC WIRING in accordance with National Electrical Code and local regulations. A separate ELECTRICAL CIRCUIT should be run from meter with a Fused Disconnect Switch in the Circuit. Wiring should conform to Figures 17 thru 23.

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

I.FUEL UNITS AND OIL LINES

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 15.

TWO-PIPE OIL LINES - For two-pipe systems where more lift is required, the two-stage fuel unit is recommended. Table 4 (single-stage) and Table 5 (two-stage) show allowable lift and lengths of 3/8-inch and 1/2-inch OD tubing for both suction and return lines. Refer to Figure 16.

Be sure that all oil line connections are absolutely airtight. Check all connections and joints. Flared fittings are recommended. Do not use compression fittings or PTFE ("Teflon®") tape.

Open the air-bleed valve and start the burner. For clean bleed, slip a 3/16" ID hose over the end of the bleed valve and bleed into a container. Continue to bleed for 15 seconds after oil is free of air bubbles. Stop burner and close valve.

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Contents Price $3.00 Important Information Please Read this page Carefully USA BoilersTable of Contents Section I General InformationV73 thru V79 Water Boiler with Tankless Heater WBT V713 and V714 Packaged Water Boiler Less Tankless Heater WB Chimney Boiler Above Front Connector Rear Section II Knockdown Boiler Assembly Removal of Bare Boiler from SkidBoiler Tapping Locations and Usage Knockdown Boilers Only Knockdown Boiler Jacket Assembly Jacket Front PanelPage Page Removal of Boiler from Skid TS-39-26-AInspect Combustion Target Wall and Combustion Chamber Liner Connect Supply and Return Piping to Heating SystemPage TS-O-62-B TS-0-63-BTankless Heater Data Rear Tankless Heater Data Front Mounted Heater on Water BoilersRecommended Smokepipe Arrangement Chimney Requirements Fuel Units and OIL LinesLift H + R See Figure Tubing 3 GPH Manimum Length of TubingMaximum Length of Tubing Boiler Sequence of Operation with Probe Lwco Boiler Sequence of Operation with Float Lwco Sequence of Operation Section IV Operating and Service Instructions Non-Burnham Drawing Copy from other Manual CAD Cell Location and Service Flame FailureCheck for Clean CUT OFF of Burner Checkout ProcedureTest Controls Primary Relay TestFloat Type LOW Water CUT-OFF Water Boilers High Altitude Installations Hints on CombustionIM PO Rtant Frequent Water AdditionSection V Boiler Cleaning Adjustable DifferentialHigh Limit Operation LOW Limit OperationClean the Firebox Reassemble BoilerSection VI Repair Parts Urnham Corporation Regional OfficesBare Boiler Assembly Bare Boiler Assembly See Page 32 for Illustration Bare Boiler Assembly From TS-39-112-D V713 and V714 Flush Jacket Page TS-39-109-D V72 Thru V79 Flush Jacket Jacket Front Panel Assy w/o Htr. Opg. Wtr. Blr V73 Thru V79 Steam Boilers Trim and Controls Description V73 V74 V75 V76 V77 V78 V79 V72 Thru V79, V713 and V714 Water Boilers Trim and Controls Description Beckett AFG Burner Beckett OIL Burner Part NOS. for V7 Series Boilers Print word document

V7 SERIES specifications

The Burnham V7 Series is a standout choice in the realm of residential and light commercial boilers, known for its high efficiency and dependable performance. Engineered for those seeking a reliable heating solution, the V7 Series integrates advanced technologies that prioritize both effectiveness and energy conservation.

At the heart of the Burnham V7 Series is its innovative design that utilizes a cast iron heat exchanger. This robust component ensures excellent durability and longevity while providing efficient heat transfer. The V7's heat exchanger is designed to maximize heating output while minimizing fuel consumption, making it an environmentally friendly option that can help reduce utility costs.

One of the key features of the V7 Series is its ability to operate on multiple fuel sources, including natural gas and propane. This versatility allows homeowners and businesses to choose the most suitable and cost-effective fuel option for their specific needs. The V7 also supports a variety of installation configurations, which makes it adaptable to different spaces and configurations.

The series is equipped with advanced control technologies, including a state-of-the-art electronic ignition system. This system enhances reliability by ensuring a quick and safe start-up while reducing energy waste. Additionally, the integrated boiler control allows users to monitor and adjust their heating settings easily, providing enhanced comfort and efficiency at the touch of a button.

Safety is a top priority in the Burnham V7 Series, which features built-in safety controls to minimize risks. These include thermal overload protection, a pressure relief valve, and a low water cutoff feature, all of which work together to safeguard the boiler and its surroundings.

Moreover, the Burnham V7 Series is designed with a user-friendly interface that makes maintenance straightforward. Routine tasks can be conducted with ease, helping to extend the life of the unit.

In conclusion, the Burnham V7 Series is crafted for those who prioritize efficiency, adaptability, and safety in their heating solutions. With its myriad features and commitment to energy conservation, it stands as a leading choice for heating needs in various settings. The combination of innovative technology, reliable performance, and user-friendly design makes the V7 Series an excellent investment in comfort and efficiency.
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