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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

221790B.11.00

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.

Attached to the centre of these instructions is 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

Balanced Flue Boiler

This is a Cat I

2H

 Appliance

BS 6332
BS 5258

Reference in these instructions to British Standards and Statutory

Regulations/Requirements apply only to the United Kingdom.

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.

To   b e   l e f t   w i t h   t h e   u s e r

Instructions for Use

Installation and Servicing

G.C. No. 41 319 53

REGISTER YOUR GLOW-WORM APPLIANCE

FOR 1ST YEAR GUARANTEE PROTECTION

CALL 0208 247 9857

50BF

3790

Summary of Contents for Ultimate 50BF

Page 1: ...phoning 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 Balanced Flue...

Page 2: ...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 t...

Page 3: ...recorded in your boiler Logbook You can check your installer is CORGI registered by calling CORGI direct on 01256 372300 Cleaning WARNING This boiler contains metal parts components and careshouldbet...

Page 4: ...pilot fails to stay alight a safety device prevents immediate relighting Do not attempt to relight until the safety device has reset that is for at least three minutes Switch on the electrical supply...

Page 5: ...contained in the current issue of the following British Standards and Codes of Practice BS6798 BS5440Part1and2 BS5546 Part1 BS5449 BS6891 BS6700 BS7593 BS7478 BS7671 Manufacturer s instructions must n...

Page 6: ...stem with the water supply taken from a feed and expansion cistern having a head of 27m 90ft maximum This boiler must not be connected to a sealed water system 1 9 Drain System A draining tap must be...

Page 7: ...specialconsiderationwithrespecttoanyopenings doors vents or windows under the roof Care is required to protect the roof if it is made of plastic sheeting If the car port consists of a roof and two or...

Page 8: ...imber frame building it should be fitted in accordance with the Institute of Gas Engineers documentIGE UP 7 1998 Ifindoubtseekadvicefromthelocal gas undertaking or Hepworth Heating Ltd Diagram 2 1 A D...

Page 9: ...2 metres away from the boiler The flow through the boiler must not be allowed to fall such that thereisatemperaturedifferencegreaterthan20o Cbetweenthe flow and return 3 4 Water System The cold feed m...

Page 10: ...d Domestic Hot Water The connections for this type of system MUST be as shown in diagram 3 2 and 3 4 3 9 Inhibitor Attention is drawn to the current issue of BS5449 and BS7593 on the use of inhibitors...

Page 11: ...e faced off to the hole dimensions shown Use template again making sure that it is positioned both square and central to the flue hole marking the fixing points at the top bottom and clearance holes f...

Page 12: ...Diagram 4 4 3797 C L C L 168 122 122 112 112 FIXING POINTS FIXING POINTS FLUE HOLE CLEARANCE HOLE 2 420 35 119 119 220 325 3798 5mm wall plug No 12 X 2 long woodscrew 7mm dia drill WALL DUCT CLEARANCE...

Page 13: ...hole in the wall fit it around the wall duct slide in until the wall plate touches the wall surface Make sure the air duct wire guards are in position Sealthejointintheairductswiththeyellowtapeprovide...

Page 14: ...EMBLY Inner Baffle Flue Duct 5 2 Water Circulation System Complete the water connections to the boiler Fill vent and cold flush the system as recommended in the current issue of BS6798 Check for any w...

Page 15: ...clamp Make sure the cable is suitably secured When making connections make sure that the earth conductor is made of a greater length than the current carrying conductors so that if the cable is strain...

Page 16: ...FUNCTIONAL CONTROL CABLE EARTH TERMINAL CONTROL THERMOSTAT THERMOSTAT CAPILLARY MAINS CABLE 8051 8038 MULTI FUNCTIONAL CONTROL CONTROL THERMOSTAT KEY br BROWN g y GREEN YELLOW bl BLUE bk BLACK 230V 50...

Page 17: ...ights keep the button K pushed in for 20 seconds If the pilot fails to stay alight a safety device in the multi functional control prevents immediate relighting Do not attempt to relight until the saf...

Page 18: ...tempt to adjust the control thermostat calibration 6 5 Thermostatic Radiator Valves If thermostatic radiator valves are fitted care must be taken to make sure that an adequate flow rate through the bo...

Page 19: ...eway access door by removing the screws see diagram 8 1 Remove the combustion chamber front see diagram 8 1 Disconnect the pilot pipe union connector and ignition lead see diagram 8 2 Separate the pil...

Page 20: ...g for cleaning do not use a wire or sharp instrument on the hole Use a little suitable sealant on the external thread when refitting to make sure a gas tight seal is made 8 5 Electrode Pilot Burner an...

Page 21: ...ntrol knob is released Does pilot flame envelope thermocoupling Check aeration If necessary Clean pilot rectify blockage in pilot injector or replace Check thermocoupling circuit using Thermocoupling...

Page 22: ...lot now stay alight Change multi functional control YES NO YES NO NO 3816 MULTI FUNCTIONAL CONTROL CONNECTION A 9 1 Pilot Refer to Chart 9 1 9 2 Thermocouple To test the thermocouple a meter with a ra...

Page 23: ...burner light Replace multi functional control harness YES NO YES NO Ensure that all services are available at the appliance ie Gas Electricity Water Also turn control thermostat fully on and check to...

Page 24: ...the control thermostat body Release the control thermostat body by unscrewing the two screws and shakeproof washers in the front of the control box Remove the split pin and withdraw the control thermo...

Page 25: ...oning Refit multi functional control cover 10 7 Solenoid diagram 10 4 With the multi functional control cover removed disconnect the electrical leads remove the retaining clip and solenoid 10 8 Main B...

Page 26: ...TION CHAMBER FRONT INSULATION REAR INSULATION PANEL Diagram 10 6 SELF ADHESIVE ALUMINIUM FOIL GASKET MICA WINDOW PEEL OFF BACKING PAPER OPENING INSIDE FACE OF THE BOILER FRONT COVER 7907 10 12 Case Se...

Page 27: ...9 Thermostat control 313 915 10 204687 Control knob 11 202713 Piezo igniter 12 801236 Mica window and gasket 8048 1 5 8 6a 4 6 12 3 10 9 7 2 11 Key No Part No Description GC Part No 11 1 Part Identifi...

Page 28: ...28 221790B Because of our constant endeavour for improvement details may vary slightly from those shown in these instructions...

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