Baxi Potterton 30 HE System Details, Information, Central Heating Circuit, Bypass, System Control

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6.0 System Details

6.1Information

1.The Baxi Combi 105 HE Condensing Combination Boiler is ‘Water Byelaws Scheme - Approved Products’.

To comply with the Water Byelaws your attention is drawn to the following installation requirements and notes (IRN).

a)IRN 001 - See text of entry for installation requirements and notes.

b) IRN 302 -

Byelaw 14.

2.Reference to the WRc publications, ‘Water fittings and materials directory’ and ‘Water supply byelaws guide’ give full details of byelaws and the IRNs.

6.2Central Heating Circuit

1.The appliance is suitable for fully pumped SEALED SYSTEMS ONLY.

Treatment of Water Circulating Systems

•All recirculatory water systems will be subject to corrosion unless an appropriate water treatment is applied. This means that the efficiency of the system will deteriorate as corrosion sludge accumulates within the system, risking damage to pump and valves, boiler noise and circulation problems.

•When fitting new systems flux will be evident within the system, which can lead to damage of system components.

•All systems must be thoroughly drained and flushed out. Using, for example Betz-Dearborn Sentinel X300 or X400 or Fernox Superfloc Universal Cleanser. They should be used following the flushing agent manufacturer’s instructions.

•System additives - corrosion inhibitors and flushing agents/descalers should comply to BS7593 requirements, e.g. Betz-Dearborn Sentinel X100 and Fernox-Copal which should be used following the inhibitor manufacturer’s instructions.

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 manufacturer’s instructions. (Test kits are available from inhibitor stockists.)

•For information or advice regarding any of the above contact Technical Enquiries.

6.3Bypass

1.The boiler is fitted with an automatic integral bypass.

6.4System Control

1.The boiler is designed for use in a heating system that incorporates external controls, i.e. a minimum of a timer device.

2.Suitable timer kits are available as optional extras.

3.For optimum operating conditions and maximum economy the fitting of a programmable room thermostat, is recommended.

© Baxi Heating UK Ltd 2007

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Contents Installation & Service Instructions Contents Scheme Members only Installer Notification GuidelinesCodes of Practice, most recent version should be used Important Installation, Commissioning, Service & RepairLegislation Technique Safe Manual HandlingGeneral PreparationCase Front Panel Control Box Data Badge IntroductionDescription Optional Extras1211 30 31 32 General LayoutLayout Appliance Operation Central Heating Mode FigDomestic Hot Water Mode Fig Frost Protection ModePerforma 30 HE Technical DataDimensions and Fixings Bypass System DetailsInformation Central Heating CircuitPressure Relief Valve Fig System Filling and PressurisingHard Water Areas Domestic Hot Water Circuit FigShowers Clearances Figs Site RequirementsLocation Electrical Supply Ventilation of CompartmentsGas Supply Condensate Drain External termination via internalOr Door Plume Displacement KitFlue Built-in element such as a window frame. See BS 5440 PtThis bend is equivalent to 1 metre Flue OptionsHorizontal Flues Horizontal Flue Systems1m extension 45bend 25m 91.5bend Vertical Flues Twin PipeTwin & Vertical Flue Systems Metre for each 91.5 elbow Metre for each 45 elbow5111079 Flue AccessoriesKey Accessory Size For Twin Flue Systems fit the adaptors as follows Flue Duct AdaptorAir duct adaptor Terminal Guard Fig Flue DimensionsFor Roof Terminals Flue TrimRing Bracket Metres 60Ø Exhaust Flue Pipe 60Ø Support Plume DisplacementPlume Displacement Kit b Elbow/Plume Outlet AssemblyDetermining Permissible Lengths Screw 30mmGeneral Fitting Notes Min metres Flue Trim SpigotPlume Outlet Elbow Preparing The Boiler InstallationInitial Preparation FlushingRemove the sealing caps from the boiler connections Fitting The BoilerCondensate Drain see section Pressure Relief Valve Discharge Pipe Wall PlateWall Thickness Flue Elbow Adaptor Fitting The FlueVertical Flue WasteY Flue Inner Flue Support Bracket Flue ElbowPreliminary Electrical Checks Making The Electrical ConnectionsCommissioning the Boiler Commissioning the BoilerPressure Test Point Sealing Screw Checking the Burner PressureCase Front Panel Facia Panel CompletionCompletion 13 .1 Annual Servicing Servicing the BoilerAnnual Servicing Fan Figs Pressure Switch FigChanging Components Burner Fig 14.0 Changing ComponentsHeat Exchanger Fig Reassemble in reverse order Injectors FigElectrodes Fig Insulation FigGas Valve Fig Central Heating Temperature Sensor FigSafety Thermostat Fig DHW Temperature Sensor FigAutomatic Air Vent Fig Pump Head Only FigPump Complete Fig Condensate Trap Fig Pressure Gauge FigsExpansion Vessel Fig 14.19 P.C.B. Fig Selector Switch FigPlate Heat Exchanger Fig Flow Regulator Figs Diverter Valve AssemblyFlue Overheat Thermostat Fig Secondary Heat Exchanger FigControl PCB Illustrated Wiring DiagramFault Finding Turn selector to neon illuminated Microswitch terminalsDiverter valve spindle Assembly faulty Domestic Hot Water Follow operational sequenceAcross terminals 5 Replace microswitch Check wiring PCB A4 connector Replace selector Terminals 4Replace pump PCB A4 connector terminals 3 Replace PCB PCB A2 connector, isGas at burner PCB A1 connector has 230V ACTurn selector switch To ‘Reset’ positionON/OFF/RESET selector when turned to ‘Reset’ position 154 Short Parts ListShort Parts List 131GAS Boiler Commissioning Checklist Service Interval Record Potterton
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30 HE specifications

The Baxi Potterton 30 HE is a popular choice among homeowners seeking an efficient and reliable boiler solution. Recognized for its compact design and advanced technologies, this boiler is ideal for various residential heating needs.

One of the standout features of the Baxi Potterton 30 HE is its high efficiency rating, which ensures lower energy consumption and reduced utility bills. With an impressive efficiency of up to 90%, this boiler operates at a much higher capacity compared to older models, making it both environmentally friendly and cost-effective. The 30 HE is particularly well-suited for medium to larger homes with a higher demand for hot water.

The Baxi Potterton 30 HE incorporates a range of innovative technologies aimed at enhancing performance and reliability. The automatic modulation function adjusts the boiler's output according to demand, ensuring that it only works as hard as necessary. This not only prolongs the lifespan of the unit but also maximizes comfort levels in the home.

Another feature of the 30 HE is its low noise operation. This boiler has been specifically designed to minimize sound, allowing it to operate quietly in the background without disturbing daily activities. This makes it an ideal choice for homes where noise can be a concern, particularly in open-plan living spaces.

The compact dimensions of the Baxi Potterton 30 HE make it easy to install in various locations, whether it be in a kitchen, utility room, or even a loft space. Its lightweight construction further simplifies the installation process, saving both time and labor costs.

In terms of user-friendliness, the boiler is equipped with an intuitive control panel that allows homeowners to easily adjust settings and monitor performance. This user-centric design ensures that even those who may not be technically inclined can manage their heating requirements with ease.

Safety features are also a priority in the design of the Baxi Potterton 30 HE. It includes built-in safety mechanisms such as frost protection and a burner pressure monitoring system, which work to prevent overheating and ensure optimal operation.

Overall, the Baxi Potterton 30 HE is an efficient, reliable, and user-friendly boiler that meets the heating demands of modern homes. Its blend of advanced technologies, compact size, and focus on safety make it a standout choice for homeowners seeking a high-performance heating solution.
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