Saunier-Duval-Thema-Classic-F24e-Installation-manual
Saunier-Duval-Thema-Classic-F24e-Installation-manual Saunier-Duval-Thema-Classic-F24e-Installation-manual
18 Replacement of Parts18.9 Burner injector assembly, refer to diagram18.6.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Lower the control panel, refer to Section 15.4.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Remove burner from boiler, refer to Section 15.9.• Undo the gas supply union nut from under the sealed chamber.Note: The fibre washer between the burner injector assemblyand gas supply must be kept for use on reassembly.• Undo and remove the sense and ignition electrode assemblies.• Remove the burner injector assembly securing screws.• Remove the burner injector assembly by lifting up, easing thegas connection through the grommet in the sealing chamber.Note: Take care not to damage the insulation.• When refitting burner injector assembly ensure the gasconnection locates correctly through the grommet.Note: Make sure that injector size, marked on each injector, isthe same as that given in ‘Section 1 Technical Data’ for the typeof gas being used.18.10 Overheat thermostatBefore starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Remove the sealed chamber cover, refer to Section 15.5.• Locate overheat thermostat on heating flow pipe on right handside of boiler, see part of diagram 18.7.• Disconnect electrical connections from thermostat• Remove the thermostat and bracket assembly from heatingflow pipe by unclipping at the side of the bracket. Remove thethermostat, fit new thermostat and replace assembly.• When refitting electrical connections to replacement thermostatthe polarity is not important.18.11 Ignition electrodeBefore starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Lower the control panel, refer to Section 15.4.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Remove burner from boiler, refer to Section 15.9.• Remove the left hand side panel, refer to Section 15.6.• Undo and remove screw securing electrode assembly to theburner injector assembly, see diagram 18.6.• Disconnect the electrical connections at the ignition unit, seediagram 18.22. Note the routing of the cables.9813 9820SENSE ELECTRODEASSEMBLYCLIPPIPESECURINGCLIP 2 OFF9749BURNER INJECTORBARHEAT EXCHANGER18.12 Flame sense electrodeGROMMETGAS SUPPLYPIPE9819aDiagram 18.5IGNITION ELECTRODEASSEMBLYDiagram 18.6OVERHEATTHERMOSTATRESETBUTTON9813ELECTRICALLEADS9750Diagram 18.7Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Lower the control panel, refer to Section 15.4.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section 15.7.• Remove burner, refer to Section 15.9.• Remove the right hand side panel, refer to Section 15.6.• Undo and remove screw securing sense assembly to theburner injector assembly, see diagram 18.6.• Disconnect the electrical connection from the inline connector,Note the routing of the cable.4000124050-244
18 Replacement of Parts18.13 Heat exchanger, refer to diagram 18.7.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Drain down central heating water circuit of the boiler only,refer to relevant part of diagram 18.1.• Remove the fan, refer to Section 15.10.• Remove air pressure switch sensing tube from the side of theflue hood, see diagram 15.9.• Release both side panels, refer to section 15.6.• Remove the flue hood, lift up and off. When refitting ensurethe rear of the flue hood locates in the tabs.• Disconnect the electrical leads from the overheat thermostat.• Remove the two pipe securing clips.• Lift to remove the heat exchanger taking, care not to damagethe insulation.18.14 Combustion chamber insulation, refer todiagram 18.8.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Remove the heat exchanger, refer to Section 18.13.• Pull out side insulation panels from combustion chamber.• Tilt rear insulation panel forwards and out.• Fit replacement insulation.18.15 Printed circuit board (PCB), refer todiagram 18.9.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Lower the control panel, refer to Section 15.4.• Undo and remove the two front retaining screws.• Hinge up the control panel cover and ease forwards from therear retaining lugs to gain access to PCB. Do not strain thecables attached to the PCB. Note the routing of the cables.• Carefully pull off electrical connections to PCB.• Unclip and lift out PCB.• Fit replacement PCB. Be careful not trap any of the cables.Make sure that PCB connections are fully pushed ontoreplacement PCB.INSULATION9824aDiagram 18.8PCB (CONTROL BOARD)1002110001CONTROLBOARDCOVER➜➜F24E shownDiagram 18.945 4000124050-2
- Page 1 and 2: To be left with the user4000124050-
- Page 3 and 4: ContentsCONTENTS DESCRIPTION SECTIO
- Page 5 and 6: Draining and FillingCaution: The bo
- Page 7: User Controls and LightingCentral h
- Page 10 and 11: Programmer Instructions for UseEven
- Page 12 and 13: 1 Technical DataThe F24E and F18E S
- Page 14 and 15: 3 Heating System Design3.1 Bypass
- Page 16 and 17: 5 Boiler Schematic F24E1 - Fan.2 -
- Page 18 and 19: 7 Fixing JigThe fixing jig is made
- Page 20 and 21: 9 Boiler Installation9.1 Sheet meta
- Page 22 and 23: 10 Horizontal Telescopic Top Flue I
- Page 24 and 25: 18410a Horizontal Top Flue Installa
- Page 26 and 27: 11.3 Mains Voltage External Control
- Page 28 and 29: 112 Commissioning5. • Bleed each
- Page 30 and 31: 15 Routine Cleaning and InspectionR
- Page 32 and 33: 15 Routine Cleaning and Inspection9
- Page 34 and 35: 16 Fault FindingBefore trying to op
- Page 36 and 37: 16 Fault FindingFAULT: NO HEATINGAr
- Page 38 and 39: 16 Fault FindingF1 FAULT DISPLAYEDF
- Page 40 and 41: 17 Wiring Diagram F24EgorFANg/yOVER
- Page 42 and 43: 18 Replacement of PartsTo Drain the
- Page 46 and 47: 18 Replacement of Parts230V CONTROL
- Page 48 and 49: 18.25 System water pressure sensor,
- Page 50 and 51: 18 Replacement of Parts18.32 (F24E
- Page 52: 19 Spare partsWhen ordering spare p
18 Replacement of Parts18.13 Heat exchanger, refer to diagram 18.7.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Drain down central heating water circuit of the boiler only,refer to relevant part of diagram 18.1.• Remove the fan, refer to Section 15.10.• Remove air pressure switch sensing tube from the side of theflue hood, see diagram 15.9.• Release both side panels, refer to section 15.6.• Remove the flue hood, lift up and off. When refitting ensurethe rear of the flue hood locates in the tabs.• Disconnect the electrical leads from the overheat thermostat.• Remove the two pipe securing clips.• Lift to remove the heat exchanger taking, care not to damagethe insulation.18.14 Combustion chamber insulation, refer todiagram 18.8.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Remove the sealed chamber cover, refer to Section 15.5.• Remove the combustion chamber cover, refer to Section15.7.• Remove the heat exchanger, refer to Section 18.13.• Pull out side insulation panels from combustion chamber.• Tilt rear insulation panel forwards and out.• Fit replacement insulation.18.15 Printed circuit board (PCB), refer todiagram 18.9.Before starting refer to the front of Section 18 Importantinformation.• Remove the front panel, refer to Section 15.3.• Lower the control panel, refer to Section 15.4.• Undo and remove the two front retaining screws.• Hinge up the control panel cover and ease forwards from therear retaining lugs to gain access to PCB. Do not strain thecables attached to the PCB. Note the routing of the cables.• Carefully pull off electrical connections to PCB.• Unclip and lift out PCB.• Fit replacement PCB. Be careful not trap any of the cables.Make sure that PCB connections are fully pushed ontoreplacement PCB.INSULATION9824aDiagram 18.8PCB (CONTROL BOARD)1002110001CONTROLBOARDCOVER➜➜F24E shownDiagram 18.945 4000124050-2
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