Burnham V7 SERIES manual Sequence of Operation

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Fig. 21: Wiring Diagram for Water Boilers with Beckett AFG Burner and Controls, without Tankless Heater

SEQUENCE OF OPERATION

A call for heat by the thermostat energizes the L8148A control which in turn energizes the R4184D primary control to turn on the burner. 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.

Fig. 22: Wiring Diagram for Water Boilers with Beckett AFG Burner and Controls, with Tankless Heater

SEQUENCE OF OPERATION

A call for heat by the thermostat energizes the L8124C control which in turn energizes the R4184D primary control to turn on the burner. 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. The circulator will also operate when the thermostat calls for heat if the boiler water temperature is up to the setting of the low limit in the L8124C control. If boiler water temperature is below the low limit setting the burner will operate but the circulator will not, giving preference to the domestic hot water demand.

On call for heat by the thermostat the burner will continue to operate until the thermostat is satisfied or the setting of the high limit is reached. If the thermostat is not satisfied when the high limit is reached the burner will stop but the circulator will continue to operate until the thermostat is satisfied. Any time the boiler water temperature drops below the setting of the low limit the burner will be

energized in order to maintain domestic water temperature.

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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 LinesMaximum Length of Tubing Manimum Length of TubingLift H + R See Figure Tubing 3 GPH 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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