Baxi Potterton G.C.No 47 393 21, G.C.No 47 393 23 10 ±1, Burner Sensing Electrode, Viewing Window

Page 37

Burner

Sensing

Electrode

 

 

 

±

1

 

.

5

 

7

 

 

 

 

 

 

Electrode Position

Viewing Window

10 ±1

Spark Ignition Electrode

5 . 0 ±

4

13.0Servicing

13.2Annual Servicing - Inspection (Cont)

6.Undo the nut on the gas inlet pipe to the venturi (Fig. 73) and pull the sensing pipe off the fan.

7.Disconnect the electrode leads, noting their position, and the fan electrical plugs.

8.Undo the four nuts retaining the combustion box cover to the heat exchanger.

9.Carefully draw the fan, collector and cover assembly forward, being careful to retain the injector in the venturi (Figs. 72 & 73).

Electrode

Leads

Fig. 72

Fig. 73

Hall Effect

Sensor

Fan, Collector and Cover

Assembly

Venturi

Injector

Threaded

Fig. 74

Bush

Gas Inlet Pipe

Blanking

Cold Water

Cap

Inlet Tap

Restricter

10.Clean any debris from the heat exchanger and check that the gaps between the tubes are clear.

11.Inspect the burner, electrodes and insulation, cleaning or replacing if necessary. Clean any dirt or dust from the air box.

12.Reassemble in reverse order.

NOTE: The sensing pipe must be reconnected to the fan, not the venturi.

DHW Filter (Fig. 75)

13.If the flow of domestic hot water is diminished, it may be necessary to clean the filter.

14.Initially check the cold water inlet tap filter.

15.Turn the tap off and draw off from a hot tap. Undo the blanking cap and remove the threaded bush (Fig. 74).

16.Extract the filter and rinse thoroughly in clean water. Reassemble and check the flow. If required clean the restricter filter as described below.

17.Pull off the Hall Effect sensor. Undo the restricter from the inlet/return manifold (Fig. 75).

18.Rinse the filter thoroughly in clean water and reassemble in reverse order.

19.Turn the selector switch fully anticlockwise against the spring pressure to the reset position and hold for 5 seconds to reset the boiler.

20.Complete the relevant Service Interval Record section of the Benchmark Commissioning Checklist at the rear of this publication and then hand it back to the user.

Filter

Hydraulic Inlet

Assembly

Fig. 75

© Baxi Heating UK Ltd 2011

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Contents Installation & Service Instructions 0086 Scheme Members only Installer Notification GuidelinesLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version General Safe Manual HandlingPreparation TechniqueContents Introduction Contents of PackDescription Layout General LayoutAppliance Operation Frost Protection ModePump Protection Promax Combi 24, 28 Technical DataOrientation Dimensions and FixingsTap Rail 32.5 mm Condensate Drain 65 mmInformation System DetailsCentral Heating Circuit BypassExpansion Vessel Central Heating only System Filling and Pressurising FigPressure Relief Valve Fig Showers Domestic Hot Water Circuit FigHard Water Areas Location Site RequirementsAt Least 1.5 7.2 Clearances Figs Ventilation of Compartments Site RequirementGas Supply Electrical SupplyCondensate Drain Flue terminal guard FlueFlue Options Each fitting to aid assemblyHorizontal Flue Systems Horizontal FluesTwin & Vertical Flue Systems Vertical Flues120mm Min ApartKey Accessory Size Code No Flue AccessoriesTelescopic Internal Flue Kit Twin Flue Connection Twin Flue Duct AdaptorAir Duct Connection Flue Duct Connection Boiler Adaptor For Roof Terminals Flue DimensionsFlue Trim Terminal Guard FigPlume Displacement Kit Fig Plume DisplacementMetres Ring Adaptor Determining Permissible Lengths 28/33Example 512136830mm General Fitting Notes60Ø extension piece. It must be secured using two Elbow to allow the flue to be installed as shownUsing a suitable bit e.g mm, drill through Extension and outlet. Secure using two of the screwsUnpacking & Initial Preparation InstallationFlushing After considering the site requirementsFitting the Pressure Relief Discharge Pipe Fig Fitting The BoilerCondensate Drain see section Tighten all the connectionsWall Thickness Waste Fitting The FlueFlue Elbow Ensure Elbow is fully Engaged into Boiler25mm Extension Cut End Inner Flue Support BracketEnsure Extension is fully engaged into Boiler Adaptor Preliminary Electrical Checks Making The Electrical ConnectionsTerminal Block Cover Cable Clamp Commissioning the Boiler CommissioningPressure Completion CompletionCase Front Panel Facia Panel 13 .1 Annual Servicing ServicingAnnual Servicing Inspection Case Front Panel Facia Panel Securing ScrewsBurner Sensing Electrode 10 ±1Viewing Window Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Venturi Fig Fan FigInjector Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorInsulation Fig Burner FigBurner Gasket Extension Piece Safety Thermostat Fig Central Heating Temperature Sensor NTC FigDHW Temperature Sensor NTC Fig Flue/Heat Exchanger Thermostat Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Hall Effect Sensor Fig Pressure Gauge FigsPlate Heat Exchanger Fig Diverter Valve Motor Unit & Assembly Fig14.22 P.C.B. Fig Selector Switch FigGas Valve Fig Throttle Adjustment ScrewExpansion Vessel Fig Setting the Gas Valve CO2 check Setting the Gas ValveFlue Adaptor Test Point Plug Analyser Probe ThrottleElectrical Illustrated Wiring DiagramShort Parts List Short Parts List306 302Initial Fault Finding Checks Fault FindingError Codes Go to section ‘A’ Turn the selector switch to Error 133 flashingReset position for 5 seconds Pump runsError 133 flashing Go to section ‘I’ Turn selector switch toTurn Domestic Hot Water Open DHW tap fullySwitch terminal PCB X3 connector terminals 3Fan jammed or faulty winding Replace PCB Replace waterReplace sensor or PCB E28 Check wiring Viewing WindowGas at burner Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Page Page Condensing Boilers only Service Record Brooks House, Coventry Road, Warwick. CV34 4LL

G.C.No 47 393 22, G.C.No 47 393 23, G.C.No 47 393 21 specifications

The Baxi Potterton range, specifically the models identified by G.C. No 47 393 21, G.C. No 47 393 23, and G.C. No 47 393 22, represents a robust selection of domestic heating solutions that cater to diverse consumer needs. Known for their reliability and efficiency, these boilers are designed with advanced technologies that ensure consistent performance and high levels of user satisfaction.

One of the primary features of these models is their compact design, allowing for flexibility in installation within various home environments. Whether placed in a kitchen, utility room, or cupboard, the space-saving configurations make them ideal for homeowners with limited installation areas.

These boilers utilize a high-efficiency heat exchanger that maximizes heating output while minimizing fuel consumption. This not only results in lower energy bills for consumers but also contributes positively towards reducing carbon footprints. The G.C. No 47 393 21, 47 393 22, and 47 393 23 models are known for their impressive Seasonal Efficiency Ratings, indicating superior energy efficiency, which is vital for compliance with modern building regulations.

In terms of technology, these models feature user-friendly digital displays that provide real-time information on system performance, making it easier for users to monitor and manage their home's heating needs. Additionally, some models come equipped with advanced control systems that allow homeowners to adjust settings remotely via smartphone applications, further enhancing convenience.

Safety is paramount in the design of Baxi Potterton boilers. Each unit is equipped with multiple safety features including built-in frost protection, pressure relief valves, and gas leak detection systems. This commitment to safety ensures peace of mind for users, knowing that their heating system is designed to operate securely.

Another significant characteristic of these models is their compatibility with renewable energy sources. They can work in conjunction with solar thermal systems and can be integrated into larger renewable setups, promoting sustainability in home heating.

In summary, the Baxi Potterton G.C. No 47 393 21, G.C. No 47 393 23, and G.C. No 47 393 22 models are a testament to modern engineering and design. With their emphasis on efficiency, safety, and convenience, they provide exceptional heating solutions for today's energy-conscious homeowners.
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