Glow-worm Ultimate 50CF User Manual

Hepworth Heating Ltd.,Nottingham Road, Belper, Derbyshire. DE56 1JTGeneral/Sales enquiries:Tel: (01773) 824141 Fax: (01773) 820569One Contact Local S

10221787B5.1 Control Box RemovalRemove the electrical control box securing screw, see diagram5.1. Pull the control box down at the front and pull for

11221787B5 Electrical Connection8049BROWNBLUEGRN/YELBLUEBROWNNEEARTH230V~50Hz PERMANENT MAINSSUPPLY FUSED AT 3 AMPBLKTHERMOSTAT NC CGRN/YELBROWNELECTR

12221787BDiagram 6.3SPARK GAPAND FLAME DIMENSION2145HEXPILOT BURNERSECURINGNUT2.5 TO 5.0mm(1/8 in) (3/16 in)10 to 14mmSPARKELECTRODE6 CommissioningT

13221787BDiagram 6.5SECURING SIDE PANELS2158SIDEPANELSECURINGSCREW (6)6 CommissioningDiagram 6.4BURNERSUPPLYTUBEPILOT SUPPLY TUBEBLUEGREEN/YELLOWBROWN

14221787BDiagram 8.2MULTI-FUNCTIONALCONTROL FILTERS2142FINE INLETSCREENPILOTFILTERDiagram 8.1MULTI-FUNCTIONALCONTROL CONNECTIONS5313HEX SCREW (4)&apos

15221787B8 Servicing and Replacement of Parts8.6 Main InjectorGain access as Section 8.1.Remove main burner as Section 8.2.Remove the main burner inje

16221787BDisconnect the pilot supply tube by unscrewing the tubing nut.Remove the pilot burner by unscrewing the fixing at the left handside.Reassembl

17221787B9 Fault FindingPILOT WILL NOT LIGHTSTART HERECheck flue blockage safety device has not operated, check gas line-open all cocks, rectify any b

18221787B9 Fault FindingRe-connect boiler flue blockage safety device to points A and B. Disconnect thermocouple at connection point D of the gas val

19221787B9 Fault FindingDiagram 9.4FAULT FINDING0899/AFaulty gas valve.Replace.Turn boiler thermostat to "O'.Does main burner extinguish.Boi

2221787BImportant InformationIntroduction 3Lighting the Boiler 4General Data 1 5Flue & Ventilation 2 6Water Systems 3 7Installation 4 8Electrical

20221787B10 Replacement PartsKey No Part No Description G.C. Part No.Diagram 10.1Please quote the name of the appliance and its serial number, found o

3221787BInstructions for UseIntroductionPlease read these instructions and follow them carefully for thesafe and economical use of your boiler.The Ult

4221787BInstructions for UseConnecting an Electrical PlugThe colours of three core flexible cable are, Brown - live, Blue- neutral, Green and Yellow -

5221787B1 General Data 1 General Notes and InformationThis boiler is for use on natural gas G20.Wherever possible, all materials, appliances and compo

6221787BCOMPARTMENTVENTILATIONREQUIREMENTSULTIMATE 50CFCOMPARTMENT AIR VENT TABLE 2.FROM ROOMOR SPACE174cm228in2348cm256in287cm214in2174cm228in2HIGH L

7221787B2 Flue and VentilationThe flue must be installed in accordance with therecommendations in the current issue of BS5440 Part 1.The flue should b

8221787BDiagram 3.2FULLY PUMPED CIRCULATIONSYSTEM (DIAGRAMMATIC)Diagram 3.3PRESSURELOSS OF BOILER1metre Min.27 metresMax.22mm VENT &15mm COLD FEED

9221787BNote: It is NOT recommended that the boiler be placed in anupright position. If it is unavoidable great care must be taken notto damage the g