Glow worm Hideaway 50 - Direct Heating Spares
Contents
1. All replacement parts REGISTER YOUR GLOW WORM APPLIANCE W All labour charges FOR 1ST YEAR GUARANTEE PROTECTION ff All call out charges CALL 0208 247 9857 Customer Services f Hepworth Heanng Lid Nottingham Road Belper Derbyshire DE56 1JT Tel 01773 828100 General Sales enquiries One Contact Local Service Fax 01773 828070 Tel 01773 824141 Fax 01773 820569 Important Information Notes and General Information Please read these instructions and follow them carefully for the safe and economical use of your boiler The boiler is automatic in operation once the pilot is lit and the controls have been set Glow worm Hideaways are central heating boilers to provide heating and if required an indirect domestic hot water supply Important Notice This boiler is for use only on G20 gas Gas Safety Installation and Use Regulations In your own interests and that of safety itis the Law that ALL gas appliances are installed by a competent person in accordance with the current issue of the above regulations CE Mark This boiler meets the requirements of Statutory Instrument No 3083 The Boiler Efficiency Regulations and therefore is deemed to meet the requirements of Directive 92 42 EEC on the efficiency requirements for new hot water boilers fired with liquid or gaseous fuels Type test for purposes of Regulation 5 certified by Notified body 0086 Product production cer2. 8 Servicing Servicing must be carried out by a competent person oO ea ee aro a THERMOSTAT gt rail ey CAPILLARY gt Always test for gas soundness after completing a service and LOCATION replacement of parts WASHER 8 1 Boiler Flueways Pull door forwards at the top to disengage the studs and lift to release from slots see diagram 7 4 Lift plinth front up and forwards to withdraw see diagram 7 4 N Disconnect the union on the gas service cock see diagram 8 1 pan D Remove the mains inlet connector by pulling upwards see PHIAL diagram 8 1 POCKET Withdraw the retaining split pin from the thermostat phial pocket RETAINING then withdraw the phial and capillary see diagram 8 2 SPLIT PIN Remove electrical connections from the interrupter see diagram 8 1 SECURING THE Remove the four screws retaining the combustion chamber THERMOSTAT PHIAL Diagram 8 2 cover and burner assembly see diagram 8 3 Withdraw forwards the complete assembly of cover control box and burner 2 Remove the graphite coated nut to release baffle tray and eu j T remove the combustion chamber taking care not to damage the insulation material on the sides SE Remove the self tapping screws which retain the cleaning door GRAPHITE and lift clear see diagram 8 4 NOTI Place a sheet of paper in the combustion chamber to catch any NUT R flue debris L Remove flueway baffles see
3. 221808B 12 00 Glowworm Instructions for Use Installation and Servicing Tobeleft withthe user 1037 Hideaway 50 G C No 41 313 15 Open Flue Boiler Se HEEL ID C benchmar A BS 6332 BS 5258 This is a Cat L Appliance Reference in these instructions to British Standards and Statutory Regulations Requirements apply only to the United Kingdom For Ireland the rules in force must be used The instructions consist of three parts User Installation and Servicing Instructions which includes the Guarantee Registration Card The instructions are an integral part of the appliance and must to comply with the current issue of the Gas Safety Installation and Use Regulations be handed to the user on completion of the installation Guarantee Registration Thank you for installing a new Glow worm appliance in your home Glow worm appliances are manufactured to the very highest standard so we are pleased to offer our customers a Comprehensive First Year Guarantee In the center pages are to be found your Guarantee Registration Card which we recommend you complete and return as soon as possible If this card is missing you can obtain a copy or record your registration by telephoning the Heatcall Customer Service number 01773 828100 Our Guarantee gives you peace of mind plus valuable protection against breakdown by covering the cost of
4. S WORKTOP WORKTOP aai 6 6 On fy in 1 4 in 20 3 4 in 20 3 4 in CUPBOARD BOILER CUPBOARD TOP amp SIDE CLEARANCES Diagram 1 2 WALL OR FIXTURE E 3 530 24in BOILER FRONT CLEARANCE Diagram 1 3 2 Water Systems 2 1 Water Pressure Head This boiler must not be connected to a sealed water system This boiler shall only be connected to an open vented cistern water supply with a minimum head of 1metre 39in and a maximum of 27metre 9Oft 2 2 Inhibitor Attention is drawn to the current issue of BS5449 and BS7593 on the use of inhibitors in central heating systems If an inhibitor is to be used in the system contact should be made with a manufacturer so that they can recommend their most suitable product If using in an existing system take special care to drain the entire system including the radiators then thoroughly cleaning out before fitting the boiler whether or not adding an inhibitor 2 3 Gravity Domestic Hot Water and Pumped Central Heating It is recommended that a cylinder thermostat is used to prevent the stored water temperature becoming too high when the heating pump is off The domestic hot water primary flow and return must be 28mm od The installation must comply with the current issue of BS5546 and BS6700 see diagram 2 1 Ifthe above conditions cannot be met it is suggested that a fully pumped system is used 2 4 Pumped Central Heating and Domestic Hot Water Where a s
5. diagrams 8 7 and 8 8 a Thoroughly clean boiler flueways and fins with a suitable stiff eo brush Replace in reverse order after completing instructions in BAFFLE Section 8 2 and 8 3 TRAY Make sure that the thermocouple phial is at the bottom of its pocket and located by the washer being behind the retaining SECURING split pin leaving clearance between the capillary tube and COMBUSTION ty SCREW 4 boiler see diagram 8 2 CHAMBER COVER ACCESS FOR SERVICING Diagram 8 3 A me i Oo A o FLUEWAY 2 ree o MAINS INLET INTERRUPTER S CO CONNECTOR ELECTRICAL 9 o 5 A TURN OFF ISOLATION OF u 2 GAS AND ELECTRICITY Diagram 8 1 ACCESS TO FLUEWAY Diagram 8 4 15 221808B 8 Servicing 8 2 Burner and Injector Follow instructions to remove the front cover burner and controls assembly as Section 8 1 Remove the screw securing the lint arrester gauze to the combustion chamber cover Remove arrester by lifting slightly and withdrawing forwards to clear gas pipe thermocouple and pilot tube see diagram 8 5 Remove the two burner securing nuts from the flange of the burner supply pipe Remove the burner from the cover and supply pipe flange Slacken the nut securing the locking slide on the venturi right side disengage the slide to enable the venturi end of the burner to be twisted anticlockwise to disengage it from the burner body see diagram 8 6 Clean the burner parts and lint arrester thoroughly using a vacuum cl
6. fitting the hooked runner at the bottom into the slot in the side panels and pushing onto the studs 221808B To Turn the Boiler Off For short periods Turn the boiler thermostat control knob B anticlockwise to O The pilot will remain alight To relight the main burner turn the thermostat control knob B clockwise to the desired setting between MIN and MAX For longer periods Push in slightly and turn gas control knob A fully clockwise until is against its setting point Turn thermostat control knob B anticlockwise to O Isolate the boiler from the electrical supply Follow the full lighting procedure to relight Refer also to Protection Against Freezing Gas Leak or Fault If a gas leak or fault exists or is suspected the boiler must be turned off including the electrical supply and must not be used until the fault has been put right Advice help should be obtained from the local gas undertaking or your installation servicing company Protection Against Freezing If the boiler is to be out of use for any long period of time during severe weather conditions we recommend that the whole of the system including the boiler be drained off to avoid the risk of freezing up If an immersion heater is fitted in the domestic hot water cylinder make sure it is switched off Sheet Metal Parts WARNING This appliance contains metal parts component and care should be taken wh
7. thermostat Replace Faulty gas valve NO Replace Turn boiler thermostat to O Does main burner extinguish Diagram 10 2 21 221808B 10 Fault Finding Thermocouple With the boiler cold check connections of the thermocouple boiler flue blockage safety device g and gas valve Reset flue blockage safety device XI Disconnect flue blockage safety device connectors at points A and B at the gas valve see diagram Interrupter Electrical Connections Test continuity of the flue blockage safety device Is there continuity Faulty boiler flue blockage safety device renew Re connect boiler flue blockage safety device to points A and B Disconnect thermocouple at connection point D of the gas valve Faulty flue blockage safety device Test continuity between point C and the connectors into gas valve body of the gas valve either at A or C Is there continuity Renew where faulty Test continuity of thermocouple between inner connection point D and point E Faulty thermocouple renew Is there continuity Thermocouple and boiler flue blockage safety device circuit satisfactory THERMOCOUPLE AND FLUE BLOCKAGE SAFETY DEVICE FAULT FINDING Diagram 10 3 FLUE BLOCKAGE SAFETY DEVICE 2 To Tt 2 Bs CONNECTION E Wf Pas CONNECTION B cx A pam C CONNECTION a 0 2 4 6 8 10 12 14 16 18 20 22 ircuit Vol millivolts Close eu Vonage INTERRU
8. 9 7 Pilot Burner Follow the instructions in the relevant parts of Section 8 1 to remove cover and burner controls assembly Remove the lint arrester as in Section 8 2 Disconnectthe thermocouple nut atthe pilot burner see diagram Disconnect the nut retaining the pilot tube and injector in the pilot burner Remove the two screws and nuts securing the pilot burner and the shield front cover see diagram 9 3 Check that the pilot flame length is as shown in diagram 7 3 Replace thermostat phial as Section 8 1 Replace lint arrester as Section 8 2 9 8 Insulation Panels Follow the relevant instructions in Section 8 1 Unfasten the two screws retaining each side insulation panel within the combustion chamber and remove panel see diagram 9 5 Release the rear insulation panel upper clips and lift out panel Replace thermostat phial as Section 8 1 9 9 Injector When the burner has been removed from the injector manifold as in Section 8 2 the injector can be unscrewed from the manifold and renewed as necessary When replacing use a little jointing compound on the external threads only to make a gas tight seal Replace thermostat phial as Section 8 1 REAR SIDE INSULATION INSULATION PANEL PANEL go gt SCREW a x GRAPHITE COATED INSULATION PANELS Diagram 9 5 19 ELECTRICAL CONNECTIONS 5041 CAPILLARY BLOCKAGE SAFETY DEVICE o SECURING LOCKNUT ELECTRICAL
9. BURNER FROM COMBUSTION CHAMBER Diagram 8 5 6126 Diagram 8 8 221808B 16 9 Replacement_of Parts MAINS INLET CONNECTOR GAS VALVE Disconnect SECURING SCREW THERMOSTAT CONTROL KNOB THERMOSTAT SECURING SCREW 2 CONNECTORS SLOT BURNER IGNITION LEAD SUPPLY BLACK END PIPE CONTROL BOX PILOT TUBE 2 GAS VALVE GAS VALVE SECURING SCREW ELECTRICAL CONNECTORS COVER SECURING w SCREW y CONTROL BOX a COVER INTERRUPTER ELECTRICAL CONNECTIONS HALF UNION PIPE THERMOCOUPLE Diagram 9 1 Before removing or replacing any parts turn off the gas supply at the boiler service cock see diagram 8 1 Isolate the electrical supply to the boiler Unless stated otherwise all parts are replaced in the reverse order to removal Always test for gas soundness after replacing parts 9 1 Gas Valve Follow the relevant instructions in Section 8 1 Remove control box cover by removing the screw and unhooking at the side see diagram 9 1 Disconnect thermocouple nut interrupter electrical connections and pilot tube connection at the gas valve Remove the two screws which secure gas valve to the control box Tilt control box to enable it to be lifted off the gas valve Unscrew half union pipe from gas valve Unscrew the gas valve from the burner supply pipe When screwing the pipes into the new gas valve use a little jointin
10. CONNECTIONS Diagram 9 6 CABLE CLIPS 2 0904 A CAPILLARY FLUE BLOCKAGE SAFETY DEVICE CAPILLARY REMOVAL Diagram 9 7 221808B 9 Replacement of Parts 9 10 Flue Blockage Safety Device Gain access as Section 8 1 Remove the electrical connections see diagram 9 6 Remove capillary from cable clips see diagram 9 7 To remove the phial assembly first gain access through flue cleaning door as Section 8 1 Unscrew securing nut and withdraw the phial assembly from the location stud see diagram 9 8 Remove the safety device securing locknut complete with phial assembly see diagram 9 6 6298 PHIAL ASSEMBLY REMOVAL Diagram 9 8 10 Fault Finding Electrical 10 1 Electrical Refer to functional flow diagram 10 1 electrical fault finding chart diagram 10 2 and wiring diagram 9 2 IMPORTANT The preliminary electrical system checks contained in a multimeter instruction book are the first checks to be carried out during and fault finding procedure On completion of the service fault finding task which has required the breaking andremaking of electrical connections then checks earth continuity polarity and resistance to earth must be repeated 10 2 Thermocouple To test the thermocouple a meter with a range 0 to 30mV is required together with a thermocouple interrupter test unit similar to the British Gas Multimeter and interrupter Refer to thermocouple fault f
11. Connection Do not route the gas supply across the combustion chamber or burner feed pipe The gas feed must be along the right hand side of the boiler Make the gas connection to the gas service cock 4 7 Flue Connection The flue should be 100mm 4in nominal diameter refer to Section 3 and diagram 1 1 Fix and seal the flue to the hood in accordance with normal practice 221808B 10 r D VIEW ON ARROW A BOILER N i 57 MAX 21 4in PIPEWORK CASING CLEARANCES Diagram 4 4 ALTERNATIVE Ni FLOW S POSITIONS 3 B MAA SA ALTERNATIVE RETURN POSITIONS With distributor tube not shown WATER CONNECTIONS FULLY PUMPED SYSTEMS Diagram 4 5 Clearance X must be left to enable cleaning door removal and boiler servicing 10 ee Oo 175 Fe 7 35 13 3 ALTERNATIVE RH FLOW a j l A CONNECTION L H FLOW 7 CONNECTION ELA TING VALVES PUMP CLEARANCES Diagram 4 6 5 Casing Location Fitting 5 1 Side Vent Grille One vent grille is supplied with the boiler which can be fitted at the rear of the left or right hand side casing The grille is fitted on the opposite side to any pipework connections Fit the grille if required to the side panel as shown in diagram 5 1 prior to fixing the side panel The plastic pegs are a tight fit and are best pushed home with a flat faced tool Do notuse the grille if water conn
12. PTER oe DIAGNOSIS GRAPH FOR CONNECTIONS Di 10 5 THERMOCOUPLE CIRCUIT Diagram 10 4 lagram 10 221808B 22 10 Fault Finding Pilot START HERE Check gas line open all cocks rectify any blockages purge out any air Check flue blockage safety device is reset check all thermocouple circuit connections are clean and in good condition Does pilot light o YES Apply match to pilot burner instead of pressing piezo unit button Does pilot light o YES Undo tubing nut at pilot burner Press gas valve knob Does gas flow freely NO YES Rectify blockage in pilot injector or renew pilot injector Undo tubing nut at pilot outlet of gas valve Press gas valve knob Does gas flow freely NO vesi Change blocked pilot tube Change gas valve PILOT IGNITION FAULT FINDING 0905A Does pilot stay alight when gas valve knob is released NO YES iy PILOT SATISFACTORY Does pilot flame envelope thermocouple I NO YES Check aeration If necessary Clean pilot rectify blockage in pilot injector or replace Paes Check thermocouple circuit using Thermocouple Fault Finding diagram On pressing piezo unit button is there a spark across electrode gap NO YES Pull ignition lead off electrode Hold end of lead close to pilot burner and operate piezo uni
13. Regulations applicable in Scotland The Health and Safety at Work Act The Control of Substances Hazardous to Health The Electricity at Work Regulations and any applicable local regulations Detailed recommendations are contained in the current issue of the following British Standards and Codes of Practice BS6798 BS5440 Part 1 and 2 BS5449 BS6700 BS6891 BS5546 BS7478 BS7593 BS7671 Manufacturer s instructions must not be taken as overriding statutory requirements 221808B 1 General 1 4 B S I Certification This boiler is certificated by B S I for safety and performance It is therefore important that no alteration is made to the boiler unless approved in writing by Hepworth Heating Ltd Any alteration not approved by Hepworth Heating Ltd could invalidate the B S I certification boiler warranty and could also infringe the statutory requirements 1 5 Gas Supply The gas installation shall be in accordance with the current issue of BS6891 The supply from the governed meter must be of adequate size to provide a steady inlet working pressure of 20mbar 8in wg at the boiler On completion test the gas installation using the pressure drop method and suitable leak detection fluid purge in accordance with the current issue of BS6891 1 6 Electrical Warning This boiler must be earthed The electrical installation must be carried out by a competent person All external components must be of the ap
14. TEM DIAGRAMMATIC DRAIN OFF COCK Diagram 2 2 FLOW RATE GALLON MINUTE Oo 1 2 3 4 5 6 800 I I I I I 0872 700 600 500 400 300 200 WATER PRESSURE LOSS INCHES HEAD OF WATER mm HEAD OF WATER D WATER PRESSURE LOSS 100 0 4 8 12 16 20 24 28 FLOW RATE LITRES MINUTE PRESSURE LOSS OF BOILER Diagram 2 3 221808B 3 _Flue_and Ventilation Important Note The boiler is fitted with a Flue Blockage Safety Device which will shut down the boiler if there is an unacceptable spillage of products at the draught diverter This safety device MUST NOT under any circumstances be interferred with or put out of action The safety device must only be replaced with the Glow worm parts 3 1 Flue The integral draught diverter on the Hideaway range of boilers makes the combustion performance independent of conditions inthe secondary flue butin common with other fuels an efficient flue is necessary to make sure of a trouble free installation The flue must be at least equivalent to 1m vertical The boiler flue socket is designed to take flue pipes to the current issue of BS567 Ifa flue pipe to BS715 is to be used an adapter must be fitted to the boiler flue socket as diagram 1 1 The flue must be in accordance with the current issue of BS5440 Part 1 3 2 Flue Guidelines The flue should be kept as short as possible Horizontal or very shallow runs of the flue should be avoided as
15. TROL PIEZO IGNITION BUTTON G THERMOSTAT CONTROL KNOB B SETTING SETTING POINTS POINT GAS CONTROL KNOB OFF PILOT IGNITION MAIN BURNER 50 OPEN FLUE Diagram 1 Safety Device This appliance is fitted with a flue blockage safety device which will shut down the appliance in the event of abnormal flue conditions This device is NOT a substitute for an independently mounted Carbon Monoxide detector The safety device is reset after three minutes by pushing in the button shown in diagram 1 Shut down can occur during certain climate conditions but if it recurs the chimney flue and air inlet into the room must be checked and any problems found corrected by a competent person before the boiler is used again 221808B Instructions for Use To Light the Boiler WARNING If the pilot light goes out for any reason do not attempt to relight until three minutes have gone by Remove the door by pulling forwards with the fascia at the top Lift up to free from bottom side lugs Refer to diagram 1 to identify the controls Check that the mains electrical supply to the boiler is switched OFF Check that the Flue Blockage Safety Device has not operated that is the button is in Refer to Safety Device instructions Push in slightly and turn gas control knob A clockwise until is against its setting point Turn thermostat control knob B anticlockwise unt
16. an extract fan is fitted in the premises there is a possibility that if adequate inlet openings are not provided spillage of the products from the boiler could occur When openings are fitted in accordance with the current issue of BS5440 Part 2 and this section extract fans should not cause down draught but where such fan installations are found a spillage test must be carried out in accordance with the current issue of BS5440 Part 1 and any corrective work done 4 Installation Before fitting the boiler make sure the location selected is in accordance with the requirements of Section 1 7 4 1 Unpacking The boiler casing panels are packed separately within the main case They are designed to enable the gas and water connections to be made before fitting the casing panels The main casing brackets distributor tube and loose items ina plastic bag are packed in the top fitment 4 2 Casing Brackets Fit the four casing brackets as shown in diagram 4 1 using eight No 8 screws Push the captive nuts supplied loose on to the casing brackets as shown in diagram 4 1 4 3 Water Connections Gravity Domestic Hot Water and Pumped Heating Fit suitable fittings into the boiler tappings see diagram 4 2 Connect pipework into prepared fittings making sure that all pipes are taken backwards and will clear the casings see diagram 1 1 Heating flow any one connection of the upper connections may be used Gravity dome
17. ash your hands before eating drinking or going to the lavatory If you do suffer irritation to the eyes or severe irritation to the skin seek medical attention Boiler Thermostat These contain very small amounts of xylene in the sealed phial and capillary If broken under normal circumstances the fluid does not cause a problem but in cases of skin contact wash with cold water If swallowed drink plenty of water and seek medical attention SECTION PAGE No 3 4 1 5 2 7 3 8 4 9 5 11 6 11 7 12 8 15 9 17 10 20 11 24 Instructions for Use Warning Make sure that nothing obstructs the rear side grilles or clearances See diagram 1 2 and 1 3 for minimum clearances Boilers Installed in a Compartment If the boiler is fitted in a compartment cupboard etc do not obstruct the purpose built compartment vents or grille on the boiler Do not use the compartment for storage purposes Maintenance To ensure the continued efficient and safe operation of the boiler it is recommended that it is checked and serviced at regular intervals The frequency of servicing will depend upon the particular installation conditions and usage but in general once a year should be enough If this appliance is installed in a rented property there is a duty of care imposed on the owner of the property by the current issue of the Gas Safety Installation and Use Regulations Section 35 It is the law that servicing is carried out b
18. d be provided as shown in diagram 1 3 The minimum gap behind the top casing is dimension G in diagram1 1 The boiler can be sited further away from the wall if required to align with kitchen units Combustible wall material must be 25mm 1in away from flue components A special top casing part number 424858 can be bought to enable boiler casings to be arranged flush with 600mm 23 in deep worktops Where the installation of the boiler will be in an unusual location special procedures may be necessary the current issue of BS6798 gives detailed guidance on this aspect 221808B A compartment used to enclose the boiler must be designed and constructed specifically for this purpose An existing cupboard or compartment modified for the purpose may be used Details of essential features of cupboard andcompartment design are given in the current issue of BS6798 Make sure that nothing will obstruct the side clearances or side grilles If installing the boiler in a compartment make sure that openings and vents are not obstructed 1 8 Heating System Controls The heating system should have installed a programmer and room thermostat controlling the boiler Thermostatic radiator valves may be installed in addition to the room thermostat Note For further information see The Building Regulations 1991 Conservation of fuel and power 1995 edition Appendix G table 4b oO
19. e rates are for guidance only depending on the heat setting Stick the self adhesive arrow on to the data label against the output the boiler is set to The arrow is in the loose items pack Check the operation of the flame failure device as follows With the main burner alight turn the gas control valve knob A fully clockwise to its stop the main and pilot flames will go out Relighting will not now be possible Before 60 seconds the safety device will work indicated by a click from the gas valve 7 Commissioning wo S SETTING POINTS A GAS CONTROL KNOB PHIAL POCKET B TERMOSTAT CONTROL GAS SERVICE COCK C PIEZO IGNITION BUTTON DATA BADGE E VIEWING WINDOW FLUE F BURNER GAS RATE BLOCKAGE GAS CONTROL KNOB A SAFETY DEVICE ADJUSTMENT RESET BUTTON G BURNER PRESSURE TEST POINT H CONTROL BOX POSITIONS BOILER COMPONENTS OFF ak PILOT IGNITION amp MAIN BURNER Diagram 7 1 Do not attempt to relight until three minutes have gone by N Remove the pressure gauge and refit the pressure test point 2 screw G makes sure a gas tight seal is made THERMOSTAT DE esp f CAPILLARY gt Turn thermostat B to O and relight the pilot burner as above Relight th inb b LOCATON elig e main burner as above WASHER Check that the boiler thermostat and all remote controls are working correctly Do not attempt to adjust the therm
20. eaner Check the condition of the burner gasket Reuse or replace the gasket as necessary Reassembly by locating the venturi lugs into the burner slots and twisting clockwise see diagram 8 6 Check the main burner injector for blockage or damage and replace as necessary see Section 9 2 When replacing lint arrester locate the two lugs into the slots on the combustion chamber cover and locate around the feed pipe then secure with the screws 8 3 Service Checks Inspect the pilot burner thermocouple and pilot burner cleaning as necessary Check the condition of the parts If necessary remove the pilot shield by removing the securing screw and nut Check the condition of the side and rear insulation panels in the combustion chamber Check the condition of the seals on the cleaning door and the combustion chamber cover Replace allitems inthe reverse order relightandtest the boiler Replacement of parts should be carried out by a competent person Locate venturi lugs in burner slots and twist clockwise to engage BURNER GASKET NUT LOCKING Ors ale 0320 20 anti clockwise to disengage from BURNER Q BODY Y VENTURI BURNER BODY BURNER SERVICING Twist VENTURI 1033 Diagram 8 6 BAFFLE HEAT EXCHANGERS 6122 Diagram 8 7 MAIN COMBUSTION BURNER a CHAMBER COVER 2 BURNER INJECTOR SECURING SCREW LUG ARRESTER REMOVAL OF
21. ections are on both sides of the boiler or if the boiler is screened by fixtures 5 2 Side Casings Fit side casing by locating their lugs into the lower slots in the base tray see diagram 5 2 Secure the casing sides to the casing bracket at the front top PLASTIC PEG SIDE VENT GRILLE If required will fit to 0885 left or right side casing Le SIDE CASING R H SHOWN S5 SIDE VENT GRILLE Diagram 5 1 Z o 00 1018 CASING BRACKET LUG AND SLOT SIDE CASINGS FITTING Diagram 5 2 6 Electrical Wiring 6 1 Control Box Cable Connection Remove the screw and cover from the mains inlet connector see diagram 6 1 Using heat resistant flexible cable of suitable length and rating as Section 1 6 connect the cable to the terminals in the connector Secure the outer sheathing with the clamp Engage slots and lugs replace connector cover and secure with screw Connect mains inlet connector to the control box and use three of the cable clips supplied loose pushed on to the edge of the left hand panel in positions CB as shown in diagram 6 2 to make sure that the cable does not touch any hot surfaces 6 2 Circulation Pump Cable Connection Heat resistant cable with a rating as stated in Section 1 6 must be used for all wiring near the boiler including the pump if within the boiler casing Support the pump cable away from hot surfaces i
22. en handling and cleaning with particular regard to edges Cleaning Keep the casing clean by wiping it over occasionally with a damp soapy cloth and dry with a polishing cloth Do not use abrasive cleaners Replacement Parts Boiler Identification If replacement parts are required apply to your local supplier or gas undertaking Please quote the name of the boiler and its serial number which can be found on the data label positioned on the boiler top to the rear of the inclined flueway cleaning door Clearance Minimum clearances must be left around the boiler as shown in diagram 1 2 and 1 3 1 General 0993 t ASPECIAL TOP CASING TO SUIT 600mm 235 in WORKTOPS IS AVAILABLE GAS CONNECTION Re 5 1 2 in B S P T WATER CONNECTIONS Rc1 tin B S P T WATER CONNECTIONS Rci reduced with DISTRIBUTOR TUBE to Re 3 4 3 4 in B S P T pumped return INSIDE DIAMETER OF SOCKET FOR 100mm 4in NOMINAL DIAMETER FLUE TO BS567 Diagram 1 1 Sheet Metal Parts Warning When installing or servicing this boiler care should be taken when handling sheet metal parts to avoid the possibility of personal injury Important Notice This boiler is for use only on G20 gas Wherever possible all materials appliances and components to be used shall comply with the requirements of British Standards Where no British Standards exist material
23. f within the boiler casing by pushing two cable clips supplied loose on to the top edge of one side casing as shown as P or AP in diagram 6 2 11 COVER 0878 MAINS INLET CONNECTOR Diagram 6 1 221808B 6 Electrical Wiring 6 3 Flue Blockage Safety Device Capillary and Interrupter Electrical Leads For transit the capillary is taped to the side of the boiler Remove tape and place capillary into cable clips provided see diagram 6 2 Note Capillary must not touch the heat exchanger side Secure the interrupter electrical leads so as not to strain them see diagram 6 2 6 4 System Controls The electrical installation must be in accordance with the current issue of BS7671 The electrical isolator must isolate both the boiler and system controls 6 5 Testing Checks to ensure electrical safety should be carried out by a competent person In the event of an electrical fault after installation of the boiler preliminary system checks must be carried out that is earth continuity polarity and resistance to earth as described in a multimeter instruction book SAFETY DEVICE CAPILLARY 3 CLIP POSITION 2 Fit 2 pump cable clips at positions P Alternative pump cable clips if feed is on the left hand side at positions AP Fit 3 control box feed cable clips at INTERRUPTER positions CB ELECTRICAL LEADS CLIP CABLE CLIP POSITIONS Diagram 6 2 7 Comm
24. g compound on the external thread only to make a gas tight seal Replace thermostat phial as relevant part of Section 8 1 Refer to diagram 9 2 to connect electrical leads It will be necessary to purge the system of air after changing the gas valve Follow the instructions in Section 7 1 17 9 2 Boiler Thermostat Follow the relevant instructions in Section 8 1 and 9 1 Pull off the thermostat control knob Remove the two screws which secure the boiler thermostat to the control box see diagram 9 1 Tilt the thermostat so that the electrical connections can be removed Withdraw boiler thermostat from control box complete with capillary tube and phial Refer to diagram 9 2 to connect electrical connectors Replace the thermostat phial as the relevant part of Section 8 1 9 3 Piezo Unit Pull door forward at the top to disengage the studs and lift to release from slots see diagram 7 4 Remove mains inlet connector by pulling upward see diagram 8 1 Remove the control box cover by removing screw and unhooking from slot at the side see diagram 9 1 Disconnect the ignition lead at the piezo unit Remove the nut inside the control box and remove piezo unit 221808B 9 Replacement of Parts 240V 50Hz MAINS SUPPLY FUSED AT 3A CONTROL BOX WIRING THERMOSTAT 6124 Diagram 9 2 9 4 Thermocouple Remove the door and plinth from the front as relevant parts of Section 8 1 Remove lint arreste
25. h appliances must be taken into account The ventilation opening areas are given in Air Vent Table A The figures quoted refer to the minimum acceptable effective area 221808B 3 5 Ventilation for Boilers Installed in a Cupboard or Compartment When the boiler is fitted in a cupboard or compartment high and low level purpose designed permanent openings must be provided to supply air for combustion and compartment ventilation The air vents must have minimum areas in accordance with Compartment Air Vent B The figures quoted refer to the minimum acceptable effective area Both the high and low level openings must communicate with the same room or must both be on the same wall to outside air If air vent grilles are fitted to a cavity wall the opening through the wall must be ducted Where ventilation air to a compartment is taken from a room or space then the room or space must be fitted with a ventilation opening as specified in Air Vent Table A For information regarding compartment requirements refer to the appropriate section of the current issue of BS6798 AIR VENT TABLE A FOR ROOM SPACE INSTALLATIONS EFFECTIVE 55 AREA OF VENT in 8 COMPARTMENT AIR VENT TABLE B COMPARTMENT VENTILATION HIGH LEVEL LOW LEVEL REQUIREMENTS VENT AREA VENT AREA VENTILATION 344cm2 52in FROM ROOM OR SPACE FROM 86cm 13in 172cm 26in OUTSIDE 3 6 Extract Fans If
26. il O is against its setting point Pushin slightly and turn gas control knob A anticlockwise until 4 is against its setting point then push fully and hold in Push and release piezo ignition button C until the pilot burner lights Air may be present in the supply pipe so the lighting of the pilot may need to be repeated until all the air has been expelled When the pilot is alight view through window E keep gas control knob A fully pushed in for about 15 seconds then release If the burner fails to stay alight wait three minutes then repeat the lighting procedure only now keep control knob A depressed for a little longer before releasing The Flue Blockage Safety Device may also need resetting refer to instructions above If the gas control knob A is turned to a safety lock prevents it being turned on again for a short period No attempt should be made to relight the pilot for at least three minutes Make sure that the pilot is alight and stable then switch on the electrical supply Press in and turn gas control knob A anticlockwise until amp is against its setting point Set any remote controls to call for heat Turn the boiler thermostat knob B clockwise until MAX is against its setting point and the main burner will light Adjust thermostat to required setting between MIN and MAX MAX is about 82 C 180 F Refit the door by
27. inding chart diagram 10 3 and diagnosis graph diagram 10 4 10 3 Pilot and Ignition Refer to pilot and ignition fault finding chart see diagram 10 6 and 10 3 10 4 Flue Blockage Safety Device If the device operates it indicates there is a problem with the chimney Make sure that the air vents are free from obstruction Carry out spillage checks as BS5440 Part 1 and put right as necessary 221808B 20 0900 THERMOSTAT GAS VALVE CONTROL SOLENOID 3 4 ORANGE BLUE RED N FUNCTIONAL FLOW WIRING Diagram 10 1 10 Fault Finding Electrical Carry out preliminary electrical checks to make sure the electrical supply is available at the boiler Check that external controls are calling for heat Make sure that the system is filled the flue blockage safety device is reset the gas supply is available and the pilot is lit Isolate electrical supply to the control box Remove the control box cover and check all cables Turn boiler thermostat to Max Is there continuity between C and NC YES Turn boiler thermostat to O Is there open circuit between C and NC YES Restore electrical supply with pilot burner lit and boiler thermostat set NO between MIN and MAX does the main burner light YES YES Boiler controls in order ELECTRICAL FAULT FINDING 0899 A a
28. ingle flow and return is taken from the boiler a minimum static head of 1 metre 39in must be provided between the water level in the cold water cistern and the centre of the waterway see diagram 2 2 2 5 Circulation Pump Normally the pump should be set to give atemperature difference of 11 C 20 F across the boiler Atthe appropriate flow rate the resistance through the boiler can be found by reference to the pressure loss graph diagram 2 3 Use a pump with integral valves or fit valves as close to the pump as possible 2 6 Domestic Hot Water Cylinder For all systems supplying domestic hot water the cylinder must be indirect 2 7 Safety Valve A safety valve need not be fitted to an open vented system 2 8 Draining Tap A drain tap must be fitted at the lowest points of the system which will allow the draining of the entire system including the boiler and domestic hot water cylinder REFER TO BS 5546 0869 22mm VENT 15mm COLD FEED INDIRECT CYLINDER Shown with recommended thermostat and valve 27metres Max BOILER To Heating Circuit DRAIN OFF Distributor tube in COCK pumped return connection PUMPED HEATING AND GRAVITY DOMESTIC DIAGRAMMATIC Diagram 2 1 22mm VENT 0870 15mm COLD FEED 1 metre MIN 27metres MAX TO INDIRECT CYLINDER To Heating Circuit Distributor tube in pumped return connection FULLY PUMPED SYS
29. issioning Please ensure the Benchmark logbook is completed and left with the user 7 1 Commissioning and Testing the Boiler The whole of the system should be thoroughly flushed out with cold water with pump removed Make sure that all valves are open Refit the pump and fill the system Examine for water soundness and vent all air from the system including the pump Caution The following should be done by a competent person Identify the controls refer to diagram 7 1 Check that the gas cock K is closed that is slot is horizontal Open all windows and put out any naked lights pipes or cigarettes Purge air from the gas supply in accordance with the current issue of BS6891 Carefully unwind the thermostat capillary insert the phial fully into pocket J and secure the location washer behind the retaining split pin supplied in the loose items pack see diagram 7 2 Check that the mains electrical supply is switched off Set thermostat control knob B to O Remove gas test pressure point screw G and fit a suitable pressure gauge Open gas cock K slot vertical Note Make sure the Flue Blockage Safety Device reset button N is fully pushed in Turn gas control knob A to fe the pilot and ignition position and push in At the same time press and release the ignition button C until the pilot lights At this stage air may be present in the gas supply pipes and this o
30. nt details may vary slightly from those shown in these instructions 221808B 24
31. ostat calibration screw Test the boiler for spillage of the flue products at the draught diverter as detailed in the current issue of BS5440 Part 1 If an extract fan is fitted in the premises refer to Section 3 6 P D 7 2 Commissioning the System PHIAL POCKET Allow the system to warm up and set the pump adjuster to a design position which gives the correct temperature difference RETAINING of 11 C 20 F between the flow and return There should be no SPLIT PIN undue noise in the system pumping over or entry of air at the open vent above the cold water feed and expansion cistern SECURING THE Allow the system to reach maximum working temperature and THERMOSTAT PHIAL Diagram 7 2 examine for water soundness The system should then be drained down as rapidly as possible to complete the flushing process The system should then be refilled vented and examined for water soundness 13 221808B 7 Commissioning 7 3 Completion Instruct and demonstrate the efficient and safer operation of the boiler heating and domestic hot water system Hand the Instructions for Use to the user for them to keep making sure that they fully understand them Advise the user that to ensure the continued efficient and safe operation of the boiler is recommended that it is checked and serviced at regular intervals The frequency of servicing will depend upon the particular installation and usage butin general once a year should be enough Draw atten
32. peration may need to be repeated When the pilot burner lights keep control knob A 221808B 12 fully pushed in for about 15 seconds If the pilot fails to remain alight repeat lighting procedure but now keep the control button pushed in for a little longer If the control knob A is turned to a safety device prevents relighting in an unsafe condition No attempt should be made to push knob A in until 3 minutes have gone by Note Should the boiler fail to operate correctly refer to the Fault Finding Section 10 Make sure that the pilot is alight and stable see diagram 7 3 for flame length switch on the electrical supply Set any remote controls so that they are calling for heat Turn control knob A to main burner position Set boiler thermostat control knob B between MIN and MAX against the setting point on the control box the main burner will light MAX is about 82 C 180 F Test for gas soundness around boiler gas components with a suitable leak detection fluid Set the burner gas pressure required ten minutes after lighting see Data label L for settings or refer to Section 1 2 Adjust screw F diagram 7 1 to obtain the required heat input Turn clockwise to decrease After adjusting seal the screw If any doubt exists the gas rate should also be checked at the meter This should be in the range of Hideaway 50 1 8 to 2 2m h 51 to 63ft8 h Th
33. proved type and must be connected in accordance with the current issue of BS7671 and any local regulations which may apply Connection of the boiler and any system controls to the mains supply should be through a 3A fused double pole isolating switch having a minimum double pole contact separation of 3mm serving only the boiler and system controls Heat resistant flexible cable of at least 0 75mm to the current issue of BS6500 Table 16 must be used for all connections within the boiler casing 1 7 Boiler Location The boiler must not be installed in a room used or intended to be used as sleeping accommodation or a room containing a bath or shower This boiler is not suitable for installation out of doors The boiler must stand on a level floor conforming with local authority requirements and building regulations The base temperature is within the requirements of the current issue of BS5258 The boiler may be stood on a wooden floor but a metal plate is required to protect plastic tiles and similar floor coverings Suitable clearance needs to be available at the sides of the boiler to ease connection of pipework The actual clearances will vary according to site conditions When the boiler is to be installed level with work surfaces minimum clearances to fixtures walls and the like should be provided see diagram 1 2 To ease minimum clearances it may be necessary to modify units or fixtures A front access clearance shoul
34. r as in Section 8 2 Disconnect the thermocouple by unscrewing nuts at the gas valve and pilot burner see diagram 9 1 and 9 3 Release cable clips and the thermocouple can be withdrawn Do not tighten nut at gas valve more than a quarter turn beyond finger tight Replace lint arrester as Section 8 2 9 5 Spark Electrode Remove the door plinth as the relevant part of Section 8 2 Remove the lint arrester as Section 8 2 Disconnect the ignition lead see diagram 9 3 Disconnect the thermocouple nut and withdraw the thermocouple from the pilot burner Disconnect the nut retaining the spark electrode The spark gap dimension is shown on diagram 9 4 9 6 Ignition Lead Remove the door and plinth as the relevant parts of Section 8 1 Remove the lint arrester as in Section 8 2 Disconnect the ignition lead at the piezo unit see diagram 9 1 Disconnect ignition lead at the spark electrode see diagram 9 3 When reconnecting the lead make sure that the clear end is fitted to the spark electrode and the protective sleeve is fitted where the lead passes through the lint arrester see diagram 8 5 221808B 18 Ye m SHIELD PILOT F BURNER PILOT ASSEMBLY a ASSEMBLY INJECTOR n m Q D Z O n O pe m 0935 IGNITION LEAD CLEAR END PILOT TUBE f Diagram 9 3 T SPARK GAP DIMENSIONS 3 4 SPARK GAP 1538 Diagram 9 4 9 Replacement of Parts
35. rk or fittings do not stick out more than as shown in diagram 4 4 If only limited space is available itis recommended that the front connections are used CAPTIVE CASING e A BRACKET x f SS L No 8 SCR Ey CAPTIVE NUT A BRACKET CASING BRACKETS FITTING Diagram 4 1 ALTERNATIVE g HEATINGOR amp DOMESTIC lt lt HOT WATER SN A FLOW G Xs S Q ALTERNATIVE A HEATING L y RETURN Y With distributor GRAVITY G tube not shown DOMESTIC RETURN TO ANY OF THE 3 REMAINING LOWER CONNECTIONS WATER CONNECTIONS GRAVITY DOMESTIC PUMPED HEATING Diagram 4 2 Y Notch on DISTRIBUTOR must lie within the shaded area BETWEEN TWO MARKERS NIU DISTRIBUTOR TUBE must be in pumped return MARKERS connection DISTRIBUTOR TUBE Diagram 4 3 221808B 4 Installation Fit plugs into all unused tappings Do not route any pipes across the front of the boiler thermostat pocket controls or combustion chamber cover Pipework must not be routed directly below the draught diverter across the boiler but is allowed to be routed under the edges of the draught diverter 4 5 Pump in Boiler Casing If the pump is to be fitted inside the boiler casing position it as shown in diagram 4 6 to either of the front connections There must be sufficient clearance X between the pump body andthe cleaning door to allow for removal of the door for flueway cleaning 4 6 Gas
36. s and equipment should be fit for their purpose and of suitable quality and workmanship 1 1 Data Approx weight of boiler 76kg 168 Ib 5 76litre 1 27 gal Rc BSP Rel linch BSP 240V 50Hz fused at 3A Water content Gas connection Water connection Electrical supply Burner Aeromatic The Seasonal Efficiency Domestic Boilers UK SEDBUk is 71 0 The value is used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings The test data from which it has been calculated have been certified by B S I 1 2 Range Rating This boiler is range rated and may be adjusted to suit individual systems The table gives settings and outputs The boiler input is supplied preset to maximum and should be adjusted to suit system requirements HIDEAWAY 50 RANGE RATING min max NOMINAL kw 15 06 16 80 18 64 HEAT INPUT GROSS Btu h 51 400 57 300 63 600 NOMINAL kW 11 72 13 19 14 65 HEAT OUTPUT Btu h 40 000 45 000 50 000 BURNER mbar 13 9 SETTING PRESSURE in w g 5 6 HOT INJECTOR 205752 1 3 Statutory Requirements The installation of this boiler must be carried out by acompetent person in accordance with the relevant requirements of the current issue of Manufacturer s instructions supplied The Gas Safety Installation and Use Regulations The Building Regulations Local Water Company Byelaws The Building Standards Scotland
37. stic hot water flow any one connection of the remaining upper connections may be used Heating return the distributor tube MUST be fitted into either one of the front lower connections on ALL installations see diagram 4 3 The distributor tube is packed in the top carton fitment Gravity domestic hot water return any one connection of the three remaining lower connections may be used When the front connections are used it is essential that any pipework or fittings do not stick out more than the amount shown in diagram 4 4 If limited space only is available itis recommended that the front connections are used Fit plugs into unused tappings Do not route any pipes across the front of the boiler thermostat pocket controls or the combustion chamber cover Pipework must not be routed directly below the draught diverter across the boiler but may be routed under the edges of the draught diverter 4 4 Water Connections Fully Pumped Systems It is important that all connections are made as shown in diagram 4 5 Fit suitable fittings into the boiler tappings as required see diagram 4 5 The water distributor tube MUST be fitted into the return connection see diagram 4 3 The distributor tube is packed in the top fitment Connect pipework into prepared fittings making sure that all pipes are taken backwards and will clear the casings see diagram 1 1 When the front connections are used it is essential that any pipewo
38. t Is there a spark across gap ii NO YES Pull ignition lead off piezo unit Using blade of a screwdriver touch unit chassis and leave approx 4mm gap from connection tag on piezo unit Operate piezo Is there a spark across gap 1 NO YES l Change Change piezo unit ignition unit e r e Check electrode gap Reposition or replace electrode as necessary Diagram 10 6 23 221808B 11 Spare Parts 11 1 Part Identification 11 2 Ordering The key number in the first column of the list will help identify When ordering spare parts quote the part number and each part shown in diagram 1 1 1 description stating the model and serial number off the data label L see diagram 7 1 If ordering from British Gas also quote the GC appliance number off the data label and the required spare part GC number A 7 Diagram 11 1 Key No Part No Description GC Part No 1 425568 Electrical control box assy 312 451 2 203329 Gas control valve 384 345 3 205752 Injector 50 4 203414 Pilot burner assy 312 246 5 203508 Injector pilot 395 674 6 900001 Thermocouple c w nut 7 202571 Thermostat c w screws 8 FF2228 Control knob assy 355 241 9 900501 Piezo unit 382 585 10 WW4613 Ignition lead 136 399 11 202605 Spark Electrode 395 720 12 425794 Flue Blockage Safety device E02686 Because of our constant endeavour for improveme
39. they encourage local cooling Always choose a flue route which will cause the least cooling of the flue There should be a vertical rise of at least 600mm 2ft before using a bend 90 elbows should not be used End with a certificated flue terminal preferably above ridge height but at least above the eaves of a pitched roof An existing chimney must be thoroughly swept and all debris cleared away before lining 3 3 Timber Frame Buildings If the boiler is to be installed in a timber frame building it should be fitted in accordance with the Institute of Gas Engineers document IGE UP 7 1998 Ifin doubt seek advice from the local gas undertaking or Hepworth Heating Ltd 3 4 Ventilation for Boiler Installed in a Room or Space If the boiler is to be installed in a room or space a purpose designed permanent ventilation opening to supply air for combustion must be provided on an outside wall to external air refer to the current issue of BS5440 Part 2 for details The opening may be directly into the room or the space containing the boiler or an outside wall of an adjacent room or space which has an internal permanent air vent of the same size into the room or space containing the boiler Do not ventilate through a bedroom bedsitting room private garage or a room containing a bath or shower When the boiler is installed in a room or internal space already containing other fuel burning appliances then the air supply of suc
40. tified Notified body 0086 The CE Mark on this appliance shows compliance with 1 Directive 90 396 EEC on the approximation of the Laws of the Member States relating to appliances burning gaseous fuels CONTENTS DESCRIPTION INSTRUCTIONS Introduction FOR USE Lighting the Boiler INSTALLATION General Data INSTRUCTIONS Water Systems Flue and Ventilation Installation Casing Location Electrical Wiring Commissioning SERVICING Servicing INSTRUCTIONS Replacement Parts Fault Finding Spare Parts 221808B 2 Directive 73 23 EEC on the harmonization of the Laws of the Member States relating to electrical equipment designed for use within certain voltage limits 3 Directive 89 336 EEC on the approximation of the Laws of the Members States relating to electromagnetic compatibility Information for the Installer and Service Engineer Control of Substances Hazardous to Health Under Section 6 of The Health and Safety at Work Act 1974 we are required to provide information on substances hazardous to health The adhesives and sealants used in this appliance are cured and give no known hazard in this state Insulation Pads Ceramic Fibre Glassyarn These can cause irritation to skin eyes and the respiratory tract If you have a history of skin complaint you may be susceptible to irritation High dust levels are usual only if the material is broken Normal handling should not cause discomfort but follow normal good hygiene and w
41. tion if applicable to the current issue of the Gas Safety Installation and Use Regulations Section 35 which imposes a duty of care on all persons who let out any property containing a gas appliance It is the law that servicing is carried out by a competent person Advise that the boiler is fitted with a Flue Blockage Safety Device and refer to the Instructions for Use Reminder Leave these instructions and the Benchmark logbook with the user Fit the plinth front by locating the sides over the boiler plinth then lowering to engage the upper and lower hooks see diagram 7 4 Fit four plastic pegs into the required holes in the top panel see diagram 7 5 The plastic pegs are a tight fit and are best pushed home with a flat faced tool Push the casing top on to all four side panel locations From inside the casing check that all the rivets have engaged into the holes Fit the door by locating the hooked runner at the bottom into the slots in side casings and pushing on to the studs on the side casings see diagram 7 4 1009 FLAME 13 1 5 in APPROX VIEWING a WINDOW PILOT BURNER ASSEMBLY FLAME DIMENSION Diagram 7 3 PLINTH PLINTH DOOR FITTING 0887 Diagram 7 4 PLASTIC PEG 4 TOP CASING PEG POSITIONS IN TOP CASING A FRONT EDGE FLUSH B 10mm 3 3 in FRONT OVERHANG TOP CASING FITTING oO 00 y Diagram 7 5 221808B 14
42. y a competent person To obtain service please call your installer or Heatcall Glow worm s own service organisation using the telephone number given on the inside of the front panel Please be advised that the Benchmark logbook should be completed by the installation engineer on completion of commissioning and servicing All CORGI Registered Installers carry a CORGI ID card and have a registration number Both should be recorded in your boiler Logbook You can check your installer is CORGI registered by calling CORGI direct on 01256 372300 Boiler Electrical Supply WARNING This boiler must be earthed The boiler must only be connected to a 240V 50Hz supply protected by a 3A fuse maximum All wiring must be in accordance with the current issue of BS7671 Heat resistant cable having a conductor size of 0 75mm 24 0 22mm to BS6500 Table 16 must be used To Connect an Electrical Plug The colours of three core flexible cable are Brown live Blue neutral Green and yellow earth As the markings on your plug may not correspond with these colours continue as follows The wire coloured brown must be connected to the terminal marked L or Red The wire coloured blue must be connected to the terminal marked N or Black The wire coloured green and yellow must be connected to the terminal marked E Green or the earth symbol L FLUE BLOCKAGE SAFETY DEVICE RESET BUTTON GAS CON
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