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Hepworth Heating Ltd.,

Nottingham Road, Belper, Derbyshire. DE56 1JT

General/Sales enquiries:

Tel: (01773) 824141  Fax: (01773) 820569

One Contact Local Service

Customer Services:

Tel: (01773) 828100

Fax: (01773) 828070

221899A.03.01

All replacement parts

All labour charges

All call-out charges

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 centre 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:

Guarantee Registration

Fanned Flue Boiler

This is a Cat I

2H

 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.

T o   b e   l e f t   w i t h   t h e   u s e r

7319

Instructions for Use

Installation and Servicing

G.C. No. 41-047-17

REGISTER YOUR GLOW-WORM APPLIANCE

FOR 1ST YEAR GUARANTEE PROTECTION

CALL 0208 247 9857

Micron

40FF

Summary of Contents for Micron 40FF

Page 1: ...ustomer Service number 01773 828100 Our Guarantee gives you peace of mind plus valuable protection against breakdown by covering the cost of Guarantee Registration Fanned Flue Boiler This is a Cat I2H 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 con...

Page 2: ... 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 2 Directive 73 23 EEC on the harmonization of the Laws of the Member States relating to the electrical equipment designed for use within certain voltage limits 3 Directive 89 336 EEC on the approximation of...

Page 3: ...ty Installation and Use Regulations Section 35 It is the law that any servicing is carried out by 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 front cover of these instructions Please be advised that the Benchmark logbook should be completed by the installation engineer on completion of comm...

Page 4: ... have been certified by B S I 1 3 Range Rating This boiler is range rated and may be adjusted to suit individual systemrequirements refertodiagram1 2fordatalabelposition ratings and settings 1 4 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 Not...

Page 5: ... suitable for outdoor installation This boiler may be installed in any room although particular attention is drawn to the requirements of the current issue of BS7671 with respect to the installation of a boiler in a room containing a bath or shower Any electrical switch or boiler control utilising mains electricity should be placed so that it cannot be touched by a person using the bath or shower ...

Page 6: ...f and two or more walls seek advice from the local gas company before installing the boiler If the terminal is fitted within 600mm below plastic guttering or painted soffit an aluminium shield 1500mm long should be fitted immediately beneath the guttering or eaves If the terminal is fitted within 450mm below painted eaves or a painted gutter an aluminium shield 750mm long should be fitted immediat...

Page 7: ...00 C between flow and return 3 4 Water System For an open vented system the boiler must be supplied from an unrestricted water supply taken from a feed and expansion cistern fitted at a maximum height of 27 metres above the boiler The cold feed must be 15mm minimum size It is important that the relative positions of the pump cold feed and open vent are as shown in diagram 3 1 Theunrestrictedopenve...

Page 8: ... pressure gauge with a set pointer and covering at least the range of 0 to 4bar 0 to 60lb in2 shall be permanently fitted to the system in a position where it can be seen when filling the system 3 13 Domestic Hot Water Cylinder SINGLE FEED INDIRECT CYLINDERS ARE NOT SUITABLE The domestic hot water cylinder must be of the indirect coil type It must be suitable for working at a gauge pressure of 0 3...

Page 9: ...IT X plus 47mm RH X plus 183mm LH flue length STD EXTD REAR FLUE Y plus 22 5mm flue length EASYFIT Y plus 50 5mm flue length Y X Y plus 67mm flue length Y STD EXTD Y plus 22 5mm flue length EASYFIT Y plus 50 5mm flue length Y 15mm 52mm Y plus 67mm flue length Y SCREW TAPE Total must not exceed 2m MAX SCREW TAPE STD REAR OUTLET FLUE PACK 1 METRE EXTENSION KIT FOAM SEAL 1 metre extension kits may be...

Page 10: ...spective of wall thicness 4 3 Rear Top and Side Flue Application Select the boiler location and flue application with due regard to the terminal position see diagram 2 1 Take the template from the boiler pack and temporarily position it on the wall making sure that the minimum clearances are maintained see diagram 4 3 Mark the centre line position of the flue Top or Rear as diagram 4 3 Forasideflu...

Page 11: ...side wall is not practical the flue system can be installed from inside Use of the optional wall liner kit is required 4 8 Rear Flue Fixing Fit the self adhesive foam seal provided in the flue pack around the air duct at the position shown in diagram 4 1 Make sure that the ductings do not slope down towards the boiler Make good around the flue outside after installation of the boiler Important Ift...

Page 12: ...agram 5 6 Note The spigot would only be fitted to the top flue outlet where averticalfluekitorincertainfluebendorientationsisincorporated Instructions are supplied with these kits Lift the boiler into position hooking over the top mounting bracket Note Anti theft screw kits are are available part no s 458113 458114 Important Securelowerbrackettowallwithscrewintowall plug already prepared Note It w...

Page 13: ...t do not fully tighten see diagram 5 8 Swing the air deflector out from right hand side the slot in air deflector allows you to do this to allow easy access to fitting fan assembly Note Apply soap to seals on flue duct extension piece to help it slide in be careful not to damage O ring Insert flue duct extension piece into top turret see diagram 5 7 Note Make sure that the flue duct extension piec...

Page 14: ...eseparateinstallationinstructionssupplied with programmer Take care not to damage any internal wiring Using heat resistant 85o C cable of at least 0 75mm2 24 0 2mm and of a suitable length thread through the grommet at the rear of the control box through the cable clamp and connect to appropriate terminals Tighten cable clamp screws see diagram 5 10 Standard colours are brown live L blue neutral N...

Page 15: ...system checks as below should be carried out Diagram 5 9 TOP TURRET 6793 GASKET SCREWS 4 TOP TURRET FLUE OUTLET FLUE DUCT EXTENSION HINGE PIN 7665 Diagram 5 8 CABLE CLAMP GROMMET 1 Test insulation resistance to earth 2 Test earth continuity and short circuit of all cables 3 Test the polarity of the mains The installer is requested to advise and give guidance to the user of the controls scheme used...

Page 16: ... 3 Initial Lighting and Testing CAUTION This work must be carried out by a competent person in accordance with the current issue of BS6798 Make sure that boiler case is fitted securely Make sure that all naked lights and cigarettes are out Open the control cover refer to Instructions for Use and identify the controls see diagram 9 1 Remove fascia see diagram 6 1 Check that the boiler is isolated f...

Page 17: ... is made Refit control box and fascia Note The fixing holes of the fascia are slotted to allow fine adjustment to align control cover with casing When the temperature control is turned to the 0 position by hand wait at least 30 seconds before turning On again There may be an initial smell given off from the boiler when new this is quite normal and it will disappear after a short period of time 6 6...

Page 18: ...l back electrode protection sleeve and disconnect electrode connection along with earth connection see diagram 8 6 Remove the burner retaining screw located at the right hand side of the burner see diagram 8 4 When completed take hold of burner and slide it to the left clearing the injector and remove Take care not to damage the combustion chamber insulation Use a vacuum cleaner or suitable stiff ...

Page 19: ...s required the breaking and remaking of the electrical connections the earth continuity polarity short circuit and resistance to earth checks must be repeated using a suitable multimeter Refer to Boiler Fault Finding see diagram 9 2 Fault Finding Wiring Diagram see diagram 9 3 Pictorial Wiring Diagram see diagram 9 4 9 2 Electrical Supply Failure Failure of the electrical supply will cause the bur...

Page 20: ... and then on Do not operate the boiler without combustion chamber front fitted Before carrying out fault finding ensure that gas electricity and water are available at the boiler Is neon 1 lit NO Check power supply Is neon 2 lit NO YES YES Faulty thermistor Replace Disconnect the 2 way thermistor plug from the PCB Check that there is a resistance between 14k 2 5kOhms Faulty PCB Replace Is neon 3 l...

Page 21: ...ITER P C B CONTROL BOARD GAS CONTROL VALVE BLOCK CONNECTOR THERMISTOR ELECTRODE AIR PRESSURE SWITCH NEON 1 NEON 5 NEON 4 NEON 6 NEON 2 NEON 3 F4A FUSE p y g p b bl bl bl b bl b r g y bl b LS LIVE Switched N LS N br br br br br r g y g y g y g y br b b br BROWN b BLUE g y GREEN YELLOW g GREY bl BLACK p PURPLE y YELLOW r RED KEY g y NEUTRAL EARTH MAIN KEY TO TERMINAL BLOCK 9 Fault Finding Diagram 9 ...

Page 22: ...wtheelectricalthermistor from its phial see diagram 10 2 Remove thermistor lead from the plastic R clips at rear of case and the cable clips these are located down left hand side of boiler Draw thermistor lead followed by thermistor out through the case grommet Re assembly note When fitting the thermistor make sure it is fully inserted into the phial see diagram 10 2 Take care when re threading as...

Page 23: ...supplied into recess before fitting the replacement multifunctional control After assembly test for gas soundness and purge in accordance with the current issue of BS6891 10 7 Solenoid diagram 10 4 Remove the electrical plug from the multifunctional control Remove the securing screw and then the solenoid assembly 10 8 Burner Remove the burner as Section 8 2 10 9 Injector Part No 205757 Remove the ...

Page 24: ...TUBE 11 1 Part Identification The part number and the diagram location will help to identify the part 11 2 Ordering Whenorderinganysparepartspleasequotethenumberanddescriptionfromthelisttogetherwiththemodelnameandserialnumber If ordering from the local gas undertaking also quote the GC number of the appliance and part 11 Spare Parts Part No Description Location GC Part No 801159 Multifunctional co...

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