Hepworth Heating Ltd.,Nottingham Road, Belper, Derbyshire. DE56 1JTGeneral/Sales enquiries:Tel: (01773) 824141 Fax: (01773) 820569One Contact Local S
10221808BFit plugs into all unused tappings.Do not route any pipes across the front of the boiler thermostatpocket, controls or combustion chamber cov
11 221808BMAINS INLET CONNECTORDiagram 6.10878NELCOVERCABLECLAMPLUGSSLOTSSIDE CASINGS FITTINGDiagram 5.21018LOCATINGLUG ANDSLOTNo. 8SCREW (2)No. 8SCRE
12221808B6.3 Flue Blockage Safety Device - Capillaryand Interrupter Electrical LeadsFor transit the capillary is taped to the side of the boiler.Remov
13 221808B7 CommissioningDiagram 7.2SECURING THETHERMOSTAT PHIAL1870THERMOSTATCAPILLARYLOCATIONWASHERPHIALPOCKETRETAININGSPLIT PINDo not attempt to r
14221808B7 CommissioningFLAME DIMENSIONDiagram 7.31009 13 (1/2 in.) APPROX.FLAMEDIMENSIONVIEWINGWINDOWPILOTBURNERASSEMBLY7.3 CompletionInstruct an
15 221808B8 ServicingDiagram 8.1Diagram 8.2ACCESS FOR SERVICINGDiagram 8.3SECURING THETHERMOSTAT PHIALISOLATION OFGAS AND ELECTRICITY09071870LOCATIO
16221808BREMOVAL OF BURNER FROMCOMBUSTION CHAMBER8 ServicingDiagram 8.5BURNER SERVICINGDiagram 8.610338.2 Burner and InjectorFollow instructions to r
17 221808B9 Replacement of PartsDiagram 9.1CONTROL BOX6123MAINS INLETCONNECTOR(Disconnect)THERMOSTATCONTROLKNOBPIEZOUNITELECTRICALCONNECTORSSLOTIGN
18221808B9 Replacement of PartsPILOT ASSEMBLYDiagram 9.3Diagram 9.2CONTROL BOX WIRING6124240V~ 50Hz MAINS SUPPLY FUSED AT 3ATHERMOSTATLNCN/CGREEN /
19 221808BCAPILLARY REMOVAL Diagram 9.7CAPILLARYCABLE CLIPS(2)ELECTRICAL CONNECTIONSDiagram 9.6FLUEBLOCKAGESAFETYDEVICE0904/A5041ELECTRICALCONNECTIONS
2221808BNotes and General InformationPlease read these instructions and follow them carefully for thesafe and economical use of your boiler.The boiler
20221808B9 Replacement of PartsPHIAL ASSEMBLY REMOVALDiagram 9.8LOCATION STUDSECURINGNUT6298PHIALPHIAL ASSEMBLY9.10 Flue Blockage Safety DeviceGain
21 221808B10 Fault Finding - ElectricalDiagram 10.2ELECTRICAL FAULT FINDINGFaulty gas valve.Replace.Turn boiler thermostat to "O'.Does mai
22221808BRe-connect boiler flue blockage safety device to points A and B. Disconnect thermocouple at connection point D of the gas valve. Test conti
23 221808B10 Fault Finding - PilotDiagram 10.6PILOT / IGNITION FAULT FINDING0905ASTART HERECheck gas line - open all cocks,rectify any blockages, pu
24221808B11 Spare Parts1 425568 Electrical control box assy 312 4512 203329 Gas control valve 384 3453 205752 Injector - 504 203414 Pilot burner ass
3 221808BWarningMake sure that nothing obstructs the rear side grilles orclearances. See diagram 1.2 and 1.3 for minimum clearances.Boilers Installed
4221808BTo Light the BoilerWARNING. If the pilot light goes out for any reason, do notattempt to relight until three minutes have gone by.Remove th
5 221808BDiagram 1.1GENERAL DIMENSIONS - given in millimetres (Approx. inches)RANGE RATINGHIDEAWAY 50NOMINALkWHEAT INPUT(GROSS)Btu/h15.06 16.80 18.64
6221808B1 General1.4 B.S.I. CertificationThis boiler is certificated by B.S.I. for safety and performance.It is, therefore, important that no alterat
7 221808BPRESSURE LOSS OF BOILERDiagram 2.3Diagram 2.2Diagram 2.1FULLY PUMPED SYSTEM(DIAGRAMMATIC)08690870087227metres Max.PUMPTo HeatingCircuitINDIRE
8221808BImportant NoteThe boiler is fitted with a Flue Blockage Safety Device, whichwill shut down the boiler if there is an unacceptable spillage ofp
9 221808B4 InstallationCASING BRACKETS FITTINGDiagram 4.11000CAPTIVENUTCASINGBRACKETCAPTIVENUTCASINGBRACKETNo.8 SCREW (8)Before fitting the boiler ma
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