Burnham V9A manual

Page 30

i.If minimum return water temperature can be maintained at 135°F and temperature differential across the system is at 40°F or less, refer to Figure 26 or 27 for recommended minimum boiler piping details.

ii.If minimum return water temperature cannot be maintained at 135°F or the temperature differential across the system varies, a blend pump is recommended as a minimum to help protect the boiler from flue gas condensation and/or thermal shock. See piping details in Figure 28. Primary secondary piping with a by-pass is an alternate to the blend pump method and is shown in Figure 29.

d.If conditions exist where the boiler is subjected to prolonged periods of operating conditions below 135°F, other mixing methods such as three or four way valves or variable speed injection should be used. Burnham Commercial offers an RTC Return Temperature Control kit to protect the boiler. See separate RTC manual.

e.Multiple Boilers - Recommended minimum multiple boiler piping is shown in Figure 30 as primary secondary with a by-pass. The boiler circulator will maintain a constant flow through the boiler during every heat demand while the by-pass diverts a portion of hot water back to the return. Alternate minimum multiple boiler piping is shown in Figure 31. The blend pump

will maintain constant flow through the boiler during every heat demand and provide a hot water blend back to the return.

f.Glycol Antifreeze Solutions - Many systems today use ethylene or propylene glycol antifreeze solutions as a measure for freeze protection, as well as a pump lubricator and corrosion inhibitor. The properties of the glycol mixture have an impact on valve and pump sizing. All glycol solutions have a lower specific heat than water.

This means that the glycol solution cannot transfer heat as well as pure water, resulting in the need for higher flow rates. In addition, the viscosity of the glycol solution is usually higher than water, requiring a higher pump head for the same given flow. Consult factory for specific applications, pump selection and flow rate.

WARNING

A properly constructed Hartford Loop must be installed on all gravity return steam systems. Hartford Loop is not required on pumped return systems.

2.STEAM HEATING, consult I=B=R Installation and Piping Guide No. 200. For piping details, see Figure 32. Figure 33 shows a typical pumped return/boiler feed unit arrangement. Figure 34 illustrates the required elevations for McDonnell and

Miller 150 and 63 float low water cut-offs.

30

Page 29 Page 31
Image 30
Page 29 Page 31
Contents V9A Series Boiler Page Important Information Read Carefully USA BoilersPage Page Table of Contents Table of Contents Section I General Information Table I Boiler Ratings / Data Recommended Service Clearance Locate the UnitChimney or Vent Typical Arrangement for Stub Vent Right Section II Cast Iron Block Assembly Assembly of Sections Manual DRAW- UPSetting of Nipples V9A Section Arrangement Assembly of Sections Hydraulic DRAW-UP Front and Rear Section Channel Hydraulic Draw-Up Sections Section III Installation Instructions Bare Boiler Assembly Avoid Breathing Fiber Particulates and Dust Left Side Canopy Intermediate Bracket Mount Rear Observation Port Cover Refer to Figure Inspect ALL Boiler SealsV9A Series Jacket Assembly Boiler Models V903A thru V912A Burner Mounting Plate Refer to Figures 16 Mount Burner Adapter Plate to Burner Mounting PlateSteam Boilers Install Steam Trim Water Boilers Install Water TrimBurner Installation Packaged BoilerShipping Information Page V9A Series Minimum Piping Parallel Water Boiler V9A Series Minimum Piping Primary Secondary Water Boiler Page Page Page Page Page Page Page Mounting Elevations of M&M 150 Float Low Water Cut-Offs Schematic Tankless Heater Piping Page DHW Generation with Indirect Water Heater Water Boiler Pressure Relief Valve Hook-Up Always Inspect Installation Before Starting Burner Section IV Operating InstructionsBoiler and System Cleaning Steam Boiler Test ControlsBoiler and System Cleaning Water Boilers Frequent Water Addition Oxygen CorrosionSection V Service Instructions Clean the Boiler FluewaysMaintenance of LOW Water Cutoff Devices Probe Type LOW Water CutoffGeneral Maintenance Considerations Section VI Burner Specifications OIL BurnersCombination GAS / OIL Burners Table VII Webster Burner Specifications Section VII Repair Parts Head Band Low High FireSection VII Repair Parts Jacket Repair Parts Models V903A Thru V912A Bare Boiler Assembly Repair Parts for Bare Boiler Assembly Repair Parts for Bare Boiler Assembly Steam Trim / Water Trim Service Record Service Record

V9A specifications

Burnham V9A is a well-established model in the world of cast iron boilers, renowned for its efficiency and reliability in residential heating applications. As a part of Burnham's esteemed line of heating solutions, the V9A is designed to provide homeowners with consistent warmth while prioritizing fuel economy and ease of use.

One of the defining features of the Burnham V9A is its durable cast iron construction. This robust material enables the boiler to withstand high temperatures and pressures, ensuring a long service life. The V9A is engineered with several sections that are joined together, allowing for easier maintenance and potential adaptability to various heating demands. The boiler's design also promotes excellent heat retention, which not only enhances performance but contributes to overall energy efficiency.

In terms of technology, the Burnham V9A stands out with its advanced combustion design. With an efficiency rating of up to 85%, this model maximizes the heat output while minimizing fuel consumption. The boiler is compatible with both natural gas and propane, providing flexibility for users to choose their preferred fuel source. Additionally, the V9A is designed to operate with a minimum of venting requirements, making installation simpler and more cost-effective.

The Burnham V9A also features a choice of various firing rates, allowing homeowners to select the optimal heating output for their specific needs. This versatility ensures that the boiler can be effectively sized for different home environments, making it a highly adaptable option for a broad range of residential settings.

Moreover, one key characteristic of the Burnham V9A is its user-friendly control systems. It comes equipped with reliable electronic ignition and offers options for outdoor reset controls, which enhance efficiency by adjusting the boiler's operation based on the outdoor temperature. This advanced control capability not only optimizes energy use but also enhances comfort levels in the home.

Overall, the Burnham V9A represents a balance of durability, efficiency, and modern convenience, making it a top choice for homeowners seeking a reliable heating solution. Its combination of cast iron construction, advanced technology, and user-friendly features solidify its reputation in the competitive market of heating systems, ensuring comfort and peace of mind for years to come.
Top Page Image Contents