Hepworth Heating Ltd.,Nottingham Road, Belper, Derbyshire. DE56 1JTGeneral/Sales enquiries:Tel: (01773) 824141 Fax: (01773) 820569One Contact Local S
10221692BCASING BRACKETS FITTINGDiagram 4.14 Installation0888FRONTCASINGBRACKETNo.8 SCREW (8)CAPTIVENUTUPPER CASINGBRACKETCAPTIVENUTDISTRIBUTOR TUBED
11221692BDiagram 4.4WATER CONNECTIONS FULLYPUMPED SYSTEMS4 Installation0874ALTERNATIVEFLOWPOSITIONSALTERNATIVERETURNPOSITIONSWith distributortube (no
12221692BDiagram 4.7PREPARED HOLE INTHE WALL DIMENSIONS 4 Installation 240(91/2 in.)BALANCEDFLUE DUCTFROM BOILER 360(141/4 in.) 485(19 in.)PRE
13221692BSIDE VENT GRILLEDiagram 5.1SIDE VENT GRILLE(If required, will fit toleft or right side casing)PLASTICPEGSIDE CASING(R.H. SHOWN)08855 Casing
14221692B6 Electrical WiringMAINS INLETCONNECTORDiagram 6.1CABLE CLIP POSITIONSDiagram 6.20878PCB25(1 in.)APAPCBP0904Fit 2 pump cableclips at positio
15221692B7 CommissioningDiagram 7.1BOILER COMPONENTS0940A GAS CONTROL KNOB J PHIAL POCKETB TERMOSTAT CONTROL K GAS SERVICE COCKC PIEZO IGNITION BU
16221692BPILOT FLAME DIMENSIONDiagram 7.2PLINTH / DOOR FITTINGDiagram 7.37 CommissioningFLAMEDIMENSIONSPARK GAPDIMENSION0937Pilot shieldomittedfor cl
17221692BACCESS FOR SERVICINGDiagram 8.3ACCESS TO FLUEWAYDiagram 8.40908BAFFLETRAY0930COMBUSTIONCHAMBERCOVERSECURINGSCREW (4)NUTFLUEWAYCLEANINGDOORSEL
18221692B8 ServicingBURNER SERVICINGDiagram 8.8Diagram 8.7REMOVAL OF BURNER FROMCOMBUSTION CHAMBER /SUPPLY FEED PIPESUPPLYFEED PIPEMAINBURNERGRAPHITE
19221692BDiagram 9.1CONTROL BOX 9 Replacement of Parts6285MAINS INLETCONNECTORIGNITION LEAD(BLACK END)ELECTRICALCONNECTORSTHERMOCOUPLECONTROL BOXC
2221692BImportant InformationIntroduction 3Lighting the Boiler 4General Data 1 5Water Systems 2 7Flue and Ventilation 3 8Installation 4 10Casing Locat
20221692BPILOT ASSEMBLYDiagram 9.3Diagram 9.2CONTROL BOX WIRING9 Replacement of Parts240V~ 50Hz MAINS SUPPLY FUSED AT 3AGRN/YELBLUEREDORANGEC N/CTH
21221692BDiagram 10.1ELECTRICAL FAULT FINDINGFUNCTIONAL FLOW WIRINGDiagram 10.210 Fault Finding - Electrical0899THERMOSTATGAS VALVECONTROLSOLENOIDLN
22221692BClosed Circuit Voltage (millivolts)DIAGNOSIS GRAPH FOR THERMOCOUPLE CIRCUITOpen Circuit Voltage (millivolts)024681012141618202291113151719212
23221692BPILOT WILL NOT LIGHTSTART HERECheck gas line-open all cocks,rectify any blockages, purge out any air. Does pilot light?Apply match to pilot b
24221692BDiagram 11.1 11 Spare Parts6286258114312109617Because of our constant endeavour for improvement, details may vary slightly from those shown
3221692BInstructions for UseNotes and General InformationPlease read these instructions and follow them carefully for thesafe and economical use of yo
4221692BTo Connect an Electrical PlugThe standard colours of three core flexible cable are,Brown - live, Blue - neutral, Green and Yellow - earth.As t
5221692BGeneral DataABCDE✝FG H J K L M N Pmm 300 118 558 294 225 533 3 300 445 121 132 664 292 398in. 113/445/822 111/287/8211/8113/4171/243/451/4261/
6221692BBOILER CASING HEIGHT(S)Diagram 1.2MAX.900 (351/2 in.)MID. 890 (35in.)MIN. 860 (34in.)MAX.867 (341/8 in.)MID. 857 (333/4 in.)MIN. 827 (321/2 in
7221692BFRONT CLEARANCEDiagram 1.50906700 (271/2 in.)BOILERWALL ORFIXTURE1 General Data2 Water SystemsDiagram 2.1086927metreMax.PUMPTo HeatingCircuitI
8221692BDiagram 2.2FULLY PUMPED SYSTEM(DIAGRAMMATIC)2 Water Systems08701 metreMIN.27metresMAX.PUMPTo HeatingCircuitTO INDIRECTCYLINDER22mm VENT15mm
9221692BUnder Car Port etc.H,IJDFKAAFGEAGGB,CB,CFFKKKCLLGG3 Flue and Ventilation1112A DIRECTLY BELOW AN OPENABLE mmWINDOW, AIR VENT, OR ANYOTHER VE
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