Potthof & Co 33kw, 24kw, 28kw manual Inner Flue Support Bracket, 25mm Extension Cut End

Page 34

10.0 Installation

Inner Flue Support Bracket

Fig. 53

10.7Fitting the Flue (Cont)

6.The inner flue duct support bracket may be in the waste portion of the flue. In this case retrieve the bracket before discarding the waste.

7.Take the inner flue support bracket (if not already fitted) and engage it over the flue duct. This will centralise the flue and air ducts, and ease assembly (Fig. 53).

Apply Lubricant for ease of assembly.

Ensure Flue is fully engaged into Flue Elbow

Slots at bottom

Fig. 55

8.Insert the flue through the hole in the wall. Fit the elbow to the boiler adaptor, ensuring that it is pushed fully in.

9.Draw the flue back through the wall and engage it in the elbow. It may be necessary to use soap solution or similar to ease assembly of the elbow adaptor and flue (Fig. 54).

10.Ensure that the terminal is positioned with the slots to the bottom (Fig. 55).

IMPORTANT: It is essential that the flue terminal is fitted as shown to ensure correct boiler operation and prevent water entering the flue.

11.Make good between the wall and air duct outside the building.

12.Fit the flue trim if required, and if necessary fit a terminal guard (see Section 8.8 & 8.9).

CONCENTRIC VERTICAL FLUE

Fig. 54

25mm

Extension

Fig. 56

Cut End

Tape

 

Adaptor

Apply Lubricant for ease of assembly.

Ensure Extension is fully engaged into Boiler Adaptor

13.Once the length of the vertical concentric extension has been determined mark and carefully cut off the excess material. The cut end MUST be square and free of burrs to ensure correct insertion into the boiler adaptor.

14.Measure 25mm from the end of the flue extension and apply a length of tape around the outer duct (Fig. 56).

15.Engage the extension into the adaptor up to this position (Fig. 57). Once the installation of the flue is complete and all support brackets are securely in place remove the tape.

Fig. 57

34© Baxi Heating UK Ltd 2012

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Contents Installation & Service Instructions Natural Gas Benchmark SchemeInstaller Notification Guidelines Scheme Members onlyLegislation Important Installation, Commissioning, Service & RepairCodes of Practice refer to the most recent version Preparation Safe Manual HandlingGeneral TechniqueContents Introduction Contents of PackDescription Expansion Vessel Automatic Air Vent General LayoutLayout Circulation Pump Drain Off PointFrost Protection Mode Central Heating Mode FigDomestic Hot Water Mode Fig Appliance OperationTechnical Data Gold Combi 24, 28 & 33 HE aDimensions and Fixings Central Heating Circuit System DetailsInformation BypassSystem Filling and Pressurising Fig Safety Pressure Relief Valve FigExpansion Vessel Central Heating only Showers Domestic Hot Water Circuit FigHard Water Areas Clearances Figs Site RequirementsLocation At leastGas Supply Site RequirementVentilation of Compartments Electrical SupplyPer Metre PerPipe run Minimum Fall Run50mm per Minimum Fall500mm min Run Minimum fallBelow windows or openings on pitched roofs 2000 Plume Displacement KitFlue Likely flue positions requiring a flue terminal guardFlue Options Total equivalent length = +B+C+2x90BendsTotal Equivalent Length = +B+C+1x90Bend Key Accessory Size Code No Flue AccessoriesTelescopic Flue inc. elbow Twin Flue Connection Twin Flue Duct AdaptorAir Duct Connection Flue Duct Connection Boiler Adaptor Flue Trim Flue DimensionsFor Roof Terminals Terminal Guard FigPlume Displacement Plume Displacement Kit FigExample 28/33Determining Permissible Lengths ElbowGeneral Fitting Notes 50mm30mm Using 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 Filling Loop Kit Condensate Drain see section Fitting the Safety Pressure Relief Discharge Pipe FigFitting The Boiler Tighten all the connectionsEnsure Elbow is fully engaged into Boiler Adaptor Fitting The FlueWall Thickness Flue Elbow Wall Thickness Waste Flue25mm 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 Selector Switch DisplayCommissioning Screw Pump Automatic Air VentCheck the Operational Working Gas Inlet Pressure Temperature Control Selector Switch DisplayTemperature Control Gas Pressure Test Point Gas Valve It is necessary to set the boiler to ‘Calibration Mode’Setting the Timer Completion CompletionCase Front Panel Facia Panel 13 .1 Annual Servicing ServicingAnnual Servicing Inspection Electrode Position 10 ±1Igniter Fig Changing ComponentsSpark and Sensing Electrodes Fig Injector Fig Fan FigVenturi Fig Gasket Venturi Injector Cover Gas Inlet Pipe Fan CollectorInsulation Fig Burner FigExtension Piece DHW Temperature Sensor NTC Fig Central Heating Temperature Sensor NTC FigSafety Thermostat Fig Flue/Heat Exchanger Thermostat Sensor FigPump Complete Fig Pump Head Only FigAutomatic Air Vent Fig Hall Effect Sensor Fig Pressure Gauge FigsPressure Relief Valve Fig Diverter Valve Motor Unit & Assembly Fig Plate Heat Exchanger FigSelector Switch Fig 14.22 P.C.B. FigGas Valve Fig Expansion Vessel FigFlue Adaptor Test Point Plug Analyser Probe Setting the Gas ValveSetting the Gas Valve CO2 check CO2 should be 8.4% ± Reduce CO2Illustrated Wiring Diagram Electrical426 Short Parts ListShort Parts List 315316 311 404419 422 400 415Initial Fault Finding Checks Fault FindingError 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 waterGas at burner Check wiring Viewing WindowReplace sensor or PCB E28 Replace gas valveReplace PCB Is there 230V at Replace safety thermostatReplace sensor Pages for Notes Pages for Notes GAS Boiler System Commissioning Checklist Service Record Potterton