Baxi Potterton Condensing Combination Boiler manual Flue/Heat Exchanger Thermostat Sensor Fig

Page 42

Electrical

PlugFlue/Heat Exchanger

Thermostat Sensor

Fig. 83

Flow Pipe

Central Heating

Temperature Sensor

14.0Changing Components

14.8Flue/Heat Exchanger Thermostat Sensor (Fig. 83)

1.Ease the retaining tab on the sensor away and disconnect the electrical plug.

2.Turn the sensor 90° anticlockwise to remove - it is a bayonet connection.

3.Reassemble in reverse order.

14.9Water Pressure Sensor (Fig. 85)

1.Drain the primary circuit.

2.Disconnect the two wires from the sensor.

3.Undo the nut on the flow pipe securing and sealing the sensor.

4.Remove the sensor, examine the sealing washer, replacing if necessary.

5.Reassemble in reverse order. The component is not polarised - either wire will fit each terminal.

14.10Central Heating Temperature Sensor (NTC) (Fig. 84)

1.Ease the retaining tab on the sensor away and disconnect the electrical plug.

2.Unscrew the sensor from it’s pocket and reassemble in reverse order. The plug will only fit one way.

14.11Safety Thermostat (Fig. 85)

Fig. 84

Pressure Sensor

Fig. 85

Safety Thermostat

Plate Heat

Exchanger

DHW Temperature

Sensor

1.Pull the plug off the thermostat.

2.Remove the screws securing the thermostat to the mounting plate on the flow pipe.

3.Reassemble in reverse order, ensuring that the plug is pushed fully on.

14.12DHW Temperature Sensor (NTC) (Fig. 85)

1.Turn off the mains cold water supply tap and draw off the residual domestic hot water.

2.Ease the retaining tab on the sensor away and disconnect the electrical plug.

3.Unscrew the sensor from the plate heat exchanger manifold. Examine the sealing washer,replacing if necessary.

4.Reassemble in reverse order. The plug will only fit one way.

42© Baxi Heating UK Ltd 2012

Page 41 Page 43
Image 42
Page 41 Page 43
Contents Installation & Service Instructions 0086 Installer Notification Guidelines Scheme Members onlyImportant Installation, Commissioning, Service & Repair LegislationCodes of Practice refer to the most recent version Preparation Safe Manual HandlingGeneral TechniqueContents Description Contents of PackIntroduction Optional ExtrasGeneral Layout LayoutFrost Protection Mode Central Heating Mode FigDomestic Hot Water Mode Fig Appliance OperationTechnical Data Heatmax Combi 24, 28Dimensions and Fixings Central Heating Circuit System DetailsInformation BypassSafety Pressure Relief Valve Fig System Filling and PressurisingExpansion Vessel Central Heating only Domestic Hot Water Circuit Fig ShowersHard Water Areas Site Requirements LocationClearances Figs Gas Supply Site RequirementVentilation of Compartments Electrical SupplyCondensate Drain 50mm per 500mm minRun Minimum fallBelow windows or openings on pitched roofs 2000 Plume Displacement KitFlue Likely flue positions requiring a flue terminal guardHorizontal Flue Systems Flue OptionsHorizontal Flues This bend is equivalent to 1 metreRoof Terminal This bend is equivalent to 1 metre Vertical FluesVertical Flue Systems Metre for each 91.5 bend Metre for each 135 bendFlue Accessories Key Accessory Size Code NoFlue Trim Flue DimensionsFor Roof Terminals Terminal Guard FigPlume Displacement Plume Displacement Kit FigExample 28/33Determining Permissible Lengths 5121368General Fitting Notes 30mmUsing a suitable bit e.g mm, drill through Elbow to allow the flue to be installed as shown60Ø extension piece. It must be secured using two Extension and outlet. Secure using two of the screwsFlushing InstallationUnpacking & Initial Preparation After considering the site requirementsFitting The Boiler Condensate Drain see sectionEnsure Elbow is fully engaged into Boiler Adaptor Fitting The FlueWall Thickness Flue Elbow WasteY FlueInner Flue Support Bracket 25mm Extension Cut EndEnsure Extension is fully engaged into Boiler Adaptor Making The Electrical Connections Preliminary Electrical ChecksTerminal Block Cover Cable Clamp Commissioning Commissioning the BoilerSelector Switch Display Check the Operational Working Gas Inlet PressureGas Valve Completion CompletionCase Front Panel Facia Panel Servicing Annual ServicingAnnual Servicing Inspection Fan, Collector and Cover Assembly Threaded Bush Electrode Leads Venturi InjectorRestricter Filter Hall Effect Sensor Changing Components Igniter FigSpark and Sensing Electrodes Fig Injector Fig Fan FigVenturi Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorBurner Fig Insulation FigDHW Temperature Sensor NTC Fig Central Heating Temperature Sensor NTC FigSafety Thermostat Fig Flue/Heat Exchanger Thermostat Sensor FigPump Head Only Fig Pump Complete FigAutomatic Air Vent Fig Pressure Gauge Figs Hall Effect Sensor FigDiverter Valve Motor Unit & Assembly Fig Plate Heat Exchanger FigSelector Switch Fig 14.22 P.C.B. FigGas Valve Fig Expansion Vessel FigSetting the Gas Valve Setting the Gas Valve CO2 checkIllustrated Wiring Diagram Electrical306 Short Parts ListShort Parts List 302Fault Finding Initial Fault Finding ChecksError Codes Reset position for 5 seconds Error 133 flashingGo to section ‘A’ Turn the selector switch to Pump runsOpen DHW tap fully Error 133 flashing Go to section ‘I’Turn Domestic Hot Water Close DHW tapFan jammed or faulty winding Replace PCB PCB X3 connector terminals 3Switch terminal Replace waterReplace gas valve Replace sensor or PCB E28Gas at burner Terminals 1Replace safety thermostat Replace PCB Is there 230V atReplace sensor Page GAS Boiler System Commissioning Checklist Service Record Brooks House, Coventry Road, Warwick. CV34 4LL

Condensing Combination Boiler specifications

The Baxi Potterton Condensing Combination Boiler is a sophisticated heating solution designed to meet the demands of modern households while promoting energy efficiency. This state-of-the-art boiler combines both heating and hot water capabilities into a compact unit, making it an ideal choice for homes with limited space.

One of the standout features of the Baxi Potterton Condensing Combination Boiler is its impressive energy efficiency. With a high energy efficiency rating, these boilers can significantly reduce energy bills and minimize carbon footprints. The condensing technology maximizes heat recovery, allowing the boiler to utilize heat that would otherwise be lost in traditional systems. By extracting more energy from the combustion process, homeowners can enjoy reliable heating and hot water without the typical energy waste associated with older boilers.

The Baxi Potterton range is engineered for easy installation and maintenance, featuring a lightweight design that simplifies the fitting process. The built-in digital control system allows homeowners to easily adjust settings for optimal comfort and energy usage. Additionally, the boiler includes a frost protection feature, making it a reliable option for homes in colder climates.

Another key characteristic of the Baxi Potterton Condensing Combination Boiler is its powerful hot water delivery system. The combination boiler provides instant hot water on demand, eliminating the need for a separate water tank. This ensures that households have a constant supply of hot water for showers, cooking, and other domestic needs, without long wait times.

Safety is a top priority with the Baxi Potterton. The boiler is equipped with multiple safety features, including pressure relief valves and safety cut-off systems, ensuring peace of mind for homeowners. The compact design further includes a quiet operation feature, which is particularly beneficial for households where noise levels need to be kept to a minimum.

In summary, the Baxi Potterton Condensing Combination Boiler is a highly efficient, compact, and user-friendly solution for home heating and hot water needs. With its advanced technology and strong emphasis on safety, it stands out as a reliable choice for modern households looking to improve energy efficiency while maintaining comfort. Whether you are replacing an old boiler or installing a new system, the Baxi Potterton offers a perfect blend of practicality and innovation.
Top Page Image Contents