Baxi Potterton BBU 15 HE manual System Details, Water Circulating Systems

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4.0System Details

4.1Water Circulating Systems

1.The appliance is suitable for use on fully pumped systems ONLYwhich may be sealed or open vented.

2.The following conditions should be observed at all times:

The static head must not exceed 30m of water.

The static head must not be less than 1m of water.

The boiler must not be used with a direct cylinder.

Drain cocks should be fitted to all system low points.

All gas and water pipes and electrical wiring must be installed in such a way that they do not restrict the servicing of the boiler.

Position isolating valves as close as possible to the circulating pump.

There is a drain cock supplied in the plumbing kit.

4.2Treatment of Water Circulating Systems

All recirculatory water systems will be subject to corrosion unless they are flushed and an appropriate water treatment is applied. To prevent this, follow the guidelines given in BS 7593 “Treatment of Water in Domestic Hot Water Central Heating Systems” and the treatment manufacturers instructions.

Treatment must involve the use of a proprietary cleanser, such as Sentinel X300 or X400, or Fernox F3 and an inhibitor such as Sentinel X100 or Fernox MB-1.

Full instructions are supplied with the products, for further information contact Sentinel (0800 389 4670) or Fernox (0870 870 0362).

Failure to flush and add inhibitor to the system will invalidate the appliance warranty.

It is important to check the inhibitor concentration after installation, system modification and at every service in accordance with the inhibitor manufacturer’s instructions. (Test kits are available from inhibitor stockists.)

For information or advice regarding any of the above contact Technical Enquiries 0844 871 1555.

© Baxi Heating UK Ltd 2009

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Contents Baxi Bermuda BBU 15 HE 0086 Scheme Members only Installer Notification GuidelinesCodes of Practice, most recent version should be used Important Installation, Commissioning, Service & RepairLegislation Safe Manual Handling Contents Description ContentsIntroduction Layout Fig General LayoutFlue Kit 10m & 12.5m a Bermuda HE Cbbu 15 HE Technical DataThere is a drain cock supplied in the plumbing kit System DetailsWater Circulating Systems Treatment of Water Circulating SystemsStorage Systems PipeworkSystem Controls Sealed Systems Figs , 7 Sealed Systems Fireplace Opening & Surround Site RequirementsBuilders Opening Fig LocationNo Horizontal Runs are Permitted FlueElectrical Connection Gas Connection VentilationGas Supply Fig Electrical Supply FigCondensate Disposal Fig Condensate Drain GeneralFrom Boiler 500mm Min Total volume of the sump is 1.5 litresCondensate Disposal Condensate Pump OperationBoiler Internal Illustrated Wiring Diagram Boiler Internal WiringFlue System InstallationInitial Preparation Barb ‘C’ Clip Air Cowl Air Duct Collar Ribs Terminal Cap Electrical Connection Siting the BoilerWater Connections Gas ConnectionCommissioning the Boiler Completion & CommissioningCompletion Test Point Annual Servicing Annual ServicingAnnual Servicing Inspection Spark Generator Fig Electrode Assembly FigChanging Components Changing ComponentsBurner Spark Generator Plug Gas Feed Pipe Injector Fan FigBurner Fig Spark Generator Plug Electrode Fan InjectorGas Valve Fig Injector Gas Valve Earth WireNTC Fig Safety Thermostat FigFloat Switches Fig PCB FigFlue Sampling Point Display Control Knobs Setting the Gas ValveSetting the Gas Valve CO2 check Error Codes Fault FindingInitial Fault Finding Checks Go to section ‘A’ Error 110 flashingBurner lights Press the Service Reset Switch for 5 secondsSpark gap and position Check wiring Clean condensate drain systemX2 connector, is 230V AC across Terminals 1 Voltage at PCB X2 connector isReplace flame sensing electrode Replace Safety ThermostatShort Parts List 13.0 Short Parts ListPage Page Page GAS Boiler System Commissioning Checklist Date Energy Efficiency Checklist completed? Service RecordAfter Sales Service 0844 871 Warranty & ServiceSerial Number Date of Installation Installer Details name, address and contact numbers

BBU 15 HE specifications

The Baxi Potterton BBU 15 HE is a high-efficiency boiler designed to offer exceptional performance for both heating and hot water needs in residential settings. Known for its robust build quality and user-friendly features, this model is particularly favored for its versatility and reliability in various home environments.

One of the standout features of the Baxi Potterton BBU 15 HE is its compact size, making it suitable for installation in smaller spaces. Despite its small footprint, it delivers impressive outputs, making it ideal for homes with moderate heating demands. The boiler’s high efficiency rating ensures reduced energy consumption, leading to lower utility bills and a smaller carbon footprint.

Equipped with a powerful heat exchanger, the BBU 15 HE maximizes heat transfer, ensuring that households receive optimum warmth and hot water. With an output capacity of 15 kW, it can effectively heat a variety of living spaces while providing hot water on demand, making it a practical choice for families.

The boiler incorporates a number of advanced technologies that enhance its performance. One such feature is the built-in frost protection, which helps prevent the system from freezing during colder months. Additionally, the BBU 15 HE is designed for easy maintenance, featuring a simple access point for servicing, which can prolong the boiler’s lifespan and improve overall efficiency.

Safety is a top priority in any boiler installation, and the Baxi Potterton BBU 15 HE includes multiple safety features such as a pre-set temperature limit that prevents overheating and a pressure relief valve to manage excessive pressure within the system. These elements contribute to a safer home environment, providing peace of mind for homeowners.

Furthermore, the boiler is designed to operate quietly, minimizing disruptions in the home when heating systems are active. This is an important factor for many households where comfort is a priority.

In summary, the Baxi Potterton BBU 15 HE is a compact, efficient, and reliable boiler that provides an optimal solution for home heating and hot water needs. Its advanced features, safety systems, and user-friendly design make it a popular choice among homeowners, ensuring a cozy and comfortable living environment. Whether for a new installation or a replacement unit, this boiler stands out as a highly effective option in the market.
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