FEB-24E Combination Boiler User Manual
Contents
1. ROUTINE SERVICING To ensure continued safe and efficient operation of the appliance it is recommended that it is checked and serviced as necessary at regular intervals The freguency of servicing will depend upon the particular instal lation conditions and usage but in general once a year should be regarded as a minimum even if only occa sional usage has occurred It is the law that any service work MUST be carried out by a registered engineer such as CORGI registered personnel SAFETY It is essential that these instructions are strictly followed for the safe and economical operation of this appli ance The appliance is a fan assisted room sealed gas boiler and therefore the flue terminal MUST NOT BE OBSTRUCTED under any circumstances If it is damaged turn off the appliance and consult your installer or service engineer If it is Known or suspected that a fault exists on the appliance it MUST NOT be used until the fault has been rectified by a competent person PRECAUTIONS AGAINST FREEZING DURING WINTER STORAGE During cold periods and if the boiler is situated in a place liable to freeze the D H W circuit must be drained down as follows Turn off the cold water Supply Open all the hot water outlet taps on the installation Release the drain plugs fitted at the lowest point of the pipework NOTE There is no drain plug fitted to the DHW side of the boiler When the operation is finished close the hot water outlet taps and repl2. FEB 24E UK SUPERCOMPACT COMBINATION BOILER USER MANUAL BOILER OUTPUT To Domestic Hot Water Minimum 7 6 kW 25 932 26 Btu h EC TYPE EXAMINATION CERTIFICATE Maximum 23 7 kW 80 867 71 Btu h PINO099BN794 To Central Heating Minimum 7 6 kW 25 932 26 Btu h Maximum 23 7 kW 80 867 71 Btu h Morco Products Ltd Riverview Road Beverley East Yorkshire HU17 0LD Telephone 01482 325456 Fax 01482 212869 Asociaci n Espa ola de Normalizaci n y Certificaci n AENO CERTIFICADO DE EXAMEN C DE TIPO EC TYPE EXAMINATION CERTIFICATE N Certificado BO SAN ANDR S 18 20500 MONDRAGON Guip zcoa ESPANA Licensee Como consecuencia de la aplicaci n del art culo 1 del anexo II de la Directiva 90 396 CEE se ha ensayado una muestra del producto y ha resultado conforme con las exigencias esenciales de la Directiva Este certificado de conformidad no implica valoraci n del conjunto de los productos fabricados Este certificado ha sido extendido por un organismo notificado a los Estados Miembros y a la Comisi n de las Comunidades Europeas de acuerdo con las disposiciones del art culo 9 de la Directiva sobre los aparatos de gas 90 396 CEE Pg 1 2 LECTRODOMESTICOS 5 COOP As result of applying the article 1 of the Annex IJ of the 90 396 EEC Directive a sample of the product has been tested and considered in accordance with the essential requirements of the Directive This certificate of
3. conformity does not imply the assessment of all the products manufactured This certificate has been issued by a notified body to the Member States and the European Community Commission according to the article 9 of the Gas appliances Directive ESP 125 I3P 205359 II2H3 IDE3P PH 13 BP 0 30 37 20 37 20 30 37 37 BBP 0 BB DP 30 37 PL IDESP I2F I3P 20 37 20 37 FIFI SI SK DH 112H3P 20 20 37 CODIGO EVACUACION C12 C32 C42 C52 C82 B22 MODELO MODEL MORCO SERVICIO SERVICE Calefacci n y ACS Heating and production of sanitary hot FAGOR heating FE 24EC Fecha de emisi n 2002 10 03 Date of issue S lo calefacci n Only Fecha de modificaci n Modified on 2004 05 18 CONTENTS Section 1 USERS INSTRUCTIONS 2 GENERAL SPECIFICATIONS 3 TECHNICAL DATA 4 GENERAL INSTALLATION REQUIREMENTS 5 INSTALLATION INSTRUCTIONS 6 COMMISSIONING INSTRUCTIONS 7 ROUTINE SERVING INSTRUCTIONS 8 TROUBLESHOOTING SELF DIAGNOSTIC CODES 10 13 15 16 17 18 1 USERS INSTRUCTIONS GAS SAFETY INSTALLATION AND USE REGULATIONS 1998 AS AMENDED It is the law that all gas appliances are installed by a registered person in accordance with the above regu lations Failure to install appliances correctly could lead to pr
4. 230 V 50Hz It should be fitted to a shuttered socket outlet complying with BS 1363 WARNING THIS APPLIANCE MUST BE EARTHED ROOM THERMOSTAT This appliance may be used in conjunction with an external room thermostat The voltage between the contacts of the room ther mostat is 24V normally closed Any 24V controls may be used but gold contacts are recommended DO NOT under any circumstances use a mains sup ply to the stat as you will blow the P C B in the boil er Only voltage free switching stats should be used Connection of a room thermostat optional Proceed as follows eUnscrew the screw A as it shows figure 1 open the bottom cover where the connector of the room thermostat is placed ePress out the plastic disc B using a screwdriver to form a hole so you can pass through the wires of the room stat e Replace cover The room thermostat must be installed on a wall which is free from any objects and free from direct contact with either sunlight or draughts 5 4 WATER AND GAS CONNECTION Connect the boiler up in such a way as to leave the connecting pipes self supporting and free from any stress Check that the gas pipe complies with the require ments of section 4 6 In order for the boiler to function correctly and to have a long working life the central heating system must be properly designed making sure that the temper ature difference between the flow and the return will not be greater t
5. SETTINGS Before leaving the factory the boiler is pre set in accordance with the information on the data plate and therefore needs no further adjustment 6 5 INITIAL OPERATION 6 5 1 Preliminary warnings Make sure that the central heating circuit is completely full and vented The pressure gauge should indicate a pressure of between 0 8 and 1 6 bar Make sure that the air intake and the flue outlet are not blocked 6 5 2 Domestic hot water service To turn on the boiler turn the main control switch on so the green light shows The boiler is then ready to supply D H W on demand Whenever a hot tap is opened the boiler automatical ly fires up to deliver hot water The temperature selector control should be set at maximum If the ambient water temperature is high as in a hot cli mate then the hot water temperature may be reduced by using this knob 6 5 3 Hot water and central heating service Set the tappets on the time clock to an on position and the main control switch on so the green light is on The room stat if fitted to max temp Then turn the central heating selector clockwise The boiler will fire up By means of the central heating temperature selector control knob any water temperature of between 60 and 85 C may be selected The boiler will remain on until the temperature selected on the room thermostat or on the boiler itself is reached Whenever there is a demand for D H W on the cen tral heating set
6. access to the gas isolation cock 4 4 VENTILATION REQUIREMENTS The following notes are for general guidance The Morco FEB 24E is a room sealed appliance and needs no purpose provided combustion air ven tilation f the boiler is to be built into a small cupboard or compartment i e at minimum clearances and over heating can be forseen i e close proximity to a cook ing appliance etc permanent air vents are recom mended for cooling purposes in the cupboard or compartment The following table gives the minimum effective areas of the vents Air from room int Air direct from space outside 13000 mm2 Position of air vent HIGH LEVEL 7500 mm2 LOW LEVEL 13000 mm2 7500 mm2 4 5 ELECTRICITY SUPPLY 3 amp fused three pin plug for use with 230V 50Hz is supplied fitted to the appliance It should be used with a shuttered socket outlet com plying with BS 1363 THIS APPLIANCE MUST BE EARTHED 4 6 GAS SUPPLY A Propane gas supply at 37m bar is reguired Ensure the regulator is of sufficient capacity to carry the maximum boiler input plus the demand for any other installed appliances Ensure the connection between the supply bottle and the caravan holiday home or park home is designed so that no pressure drop occurs No more than 3 m of 15mm pipe should be used Where the supply exceeds 3 m the pipe should be suitably sized only reducing to 15mm before the boil er A full bore isolation coc
7. shower is suitable but if the unit has a loose head which may become immersed in bath water either an anti syphonage device must be fitted or the length of the flexible hose must be reduced so that it cannot fall closer than 13 mm 1 2 in to the top of the bath 12 5 INSTALLATION INSTRUCTIONS 5 1 BOILER PACKAGING The boilers are supplied in different packagings Boiler Flue system separate packaging 5 2 FITTING THE BOILER Decide where the boiler is to be fixed on the wall taking into account the installation requirements detailed in section 4 2 and the clearances and dimen sions described in the the technical data The centres for the hanging strap fixing are 85mm below the top of the boiler casing see fig below The flue pipe centre is 213mm above the hanging strap centres NOTE a fall of about 2 3 should be allowed on the flue pipe to stop water ingress into the boiler A screw fixing should be made on the bottom rail of the boiler to secure it during transport f IL 128 213 5 85 5 MOUNTING BRACKET MINIMUM SIDE AND FRONT HOLE CENTRES CLEARANCE 5mm p 390 A 5 3 WIRING INSTRUCTIONS Warning observe the usual precautions to ensure that the electricity supply is isolated before com mencing any installation or service work The appliance is fitted with a 3 amp fused 3 pin plug for use with
8. to return to within operating range before reset Also some faults may take up to 3 minutes before lockout is displayed E G Fan failure water overheating CODE DESCRIPTION FAULT Lack of gas or ignition problems Flame supervision failure Burner on but flame indicator off Minimum burner pressure too low One 1 second flash Air pressure switch failure Fan failure Two 1 second flashes Water Pressure below 0 7 bar Three 1 second flashes Hi limit thermostat failure Four 1 second flashes Printed circuit board failure Repeating 5 second flashes only with no 1 second flashes burner off Twelve 1 second Central heating thermistor failure flashes ES Five 1 second flashes Flame supervision failure indicator light on 12 7 04 18 19 For more detailed servicing information workshop manuals technical advice spare parts product training please phone us on 01482 325456 or contact us at the address below Our qualified C O R GI registered personnel are ready to help and advise you MORCO PRODUCTS LTD MORCO HOUSE RIVERVIEW RD BEVERLEY HU17 OLD TEL 01482 325456 FAX 01482 212869 EMAIL SALES MORCOPRODUCTS CO UK WEBSITE WWW MORCOPRODUCTS CO UK 20 24 06 05 N51J017F7
9. valve Flame control by ionisation Ignition control Anti frost control in the central heating circuit Anti seizure of the pump 27 Expansion vessel valve 28 Draining valve DIMENSIONS AND CONNECTIONS DETAILS vyu i lt 146 P 6 8 4 amp 1 3 4 BSP Central heating return 2 Mains cable 3 1 2 BSP Domestic cold water inlet 4 3 4 BSP Gas inlet Ode 5 1 2 BSP D H W outlet O O 6 3 4 BSP Central heating flow 8 Pressure Relief Valve 9 Draining valve for central heating T A Room thermostat connection ELECTRICAL CIRCUIT DIAGRAM 1 Surge arrestor 2 Mains connection 3 Earth 4 Fan 5 Pump 6 Ignition 7 Burner solenoid valve 1 d 8 Burner solenoid valve 2 9 Front panel control 10 3 way valve 11 Air pressure switch 12 Room stat optional 13 Room stat connector block 14 Clock connection 15 Modulating solenoid valve 16 Flame sensor 17 High limit stat 21 Hot water thermistor 22 Central heating thermistor 23 Pressure switch 25 Burner functioning indicator 26 Lock out indicator light 30 Clock S4 Gas change bridge Made Propane Break Nat Gas P1 Maximum power adjustment P2 Minimum Ligh
10. 0 Height 680 Dimensions mm Width 390 Depth 254 Top 200 a Bottom 150 Minimum clearance mm Sides 5 Front 5 Gas inlet 18 Domestic cold water inlet 15 D H W outlet 15 Central heating flow 22 Central heating return 29 Net weight kg 29 Type of gas Propane G 31 FEB 24E UK GLP x 92 42 EEC Directive 4 GENERAL INSTALLATION REQUIREMENTS 4 1 RECOMMENDATIONS FOR THE USER This appliance must be installed adjusted or adapt ed for use with another type of gas only by a guali fied and competent person 5 guality and a correct installation will ensure that your heater works properly GAS SAFETY INSTALLATION AND USE REGU LATIONS 1998 As amended It is the law that all gas appliances must be installed by a registered person in accordance with the above regulations Failure to install appliances correctly may lead to prosecution It is in your own interest and that of safety to ensure that the law is complied with In addition to the above regulations this appliance must be installed in accordance with the current IEE Wiring regulations Heath and Safety Document No 635 The Electricity at Work Regulations It should also be in accordance with the relevant rec ommendations in the current editions of all relevant National Standards Your particular attention is drawn to the following standards relevant to an installation in Leisure Accommodation Vehicles BS 5482 part 2 Installations in caravans an
11. ace the drain plug To put the boiler back into service open the cold water supply NOTE In a Caravan Holiday Home installation there may be a drain cock on the cold inlet under the van directly below the boiler which may be used It is not necessary to drain the heating circuit if it has been filled with antifreeze 6 pre winter check of the amount of antifreeze protection is strongly recommended The level may have fallen due to leaks in the system requiring frequent refilling from the filling loop 2 GENERAL SPECIFICATIONS The Fagor FEB 24E is 8 wall hung room sealed fan assisted microprocessor controlled fully modu lating gas combination boiler for providing both cen tral heating and domestic hot water It is particularly suitable for Caravan Holiday Home and Park Home use Maximum heat output in either heating or hot water mode is 23 7 KW 80 840 Btu h and priority is always given to the supply of hot water NOTE The central Heating power is factory set at 70 of its maximum The appliance is supplied with a standard concentric air flue duct and wall terminal however additional extension kits vertical flue kit are available as optional extras The appliance is intended for use with sealed central heating systems and is supplied for use with propane gas The appliance includes the following components Induced draught fan for the extraction of combus tion products and induction of combustion air Modul
12. allows free passage of air across it at all times It is ESSENTIAL TO ENSURE that products of combustion discharging from the terminal cannot re enter the building or vehicle through ventilators windows or other sources of natural air infiltration such as other flues etc with the exception of doors but not the opening windows thereof The minimum acceptable dimensions from the ter minal to obstructions and ventilation openings is as follows Where the terminal is fitted in a position to which children the elderly or disabled people have access less than 1 5m above steps decking or ground a suitable terminal guard should be fitted Directly below an opening fixed vent windows etc Adjacent to an opening fixed vent windows etc 300mm 75mm 200mm 75mm 300mm 1500mm Below gutters Below eaves From a vertical drain pipe or soil pipe From an internal or external corner Vertically from a terminal on the same wall Horizontally from a terminal on the 300mm same wall In certain weather conditions the terminal may emit a plume of steam 4 4 MINIMUM CLEARANCES Minimum clearances of 5mm to the front and sides of the boiler must be observed However full access from the front in the form of an opening door must be given to allow access to the controls and for serv icing 200mm above the top of the boiler case is required for the flue assembly 150mm is required below the boiler to allow easy
13. ance necessary for carrying out maintenance operations is 200mm Distance at the bottom The minimum distance necessary for carrying out maintenance operations is 250 mm Distance at the front The minimum distance necessary for access during maintenance operations is 250mm although this distance may be reduced to 5 mm as long as a door is installed which can be removed when it comes to carrying out maintenance work FRONT COVER REMOVAL 16 The cover is held in place by four spring clips and can be removed by grasping it at the top and pulling for ward sharply to release Further access can be gained by removing the con trol panel Four screws and moving down the elec tronic box BURNER AND HEAT EXCHANGER INSPECTION AND CLEANING The front of the sealed air box must first be removed 8 screws and care should be taken to avoid dam aging the seal The combustion chamber cover can then be removed 6 screws and gas connections taking care not to damage the delicate insulation material inside Inspect the burner and heat exchanger fins for debris and soot Check also for rubbish below the burner IGNITION AND DETECTION ELEC TRODES With the combustion chamber cover removed check the condition of the electrodes for any sign of wear or damage WATER CIRCUIT CHECKS Inspect the pipe work inside the boiler for leaks Check that the pressure in th
14. ating gas valve with double safety valves Circulation pump with manual anti seizure device Schematic diagram Hydraulic circuit 1 Expansion vessel 2 Pump with Automatic air bleed 3 Water pressure switch 4 Central heating thermistor 5 Three way valve 6 Overheat thermostat 7 Air pressure switch 8 Venturi 9 Fan 10 Sealed air box 11 Copper heat exchanger 12 Combustion chamber 13 Ignition electrode 14 Burner 15 Flame sensing electrode 16 Modulating gas valve 17 Gas inlet 18 D H W Thermistor 19 Hot Water outlet 20 Plate heat exchanger 21 C H flow 23 Cold water inlet 24 C H return 25 Pressure relief valve 26 Automatic By pass Central heating expansion vessel Differential air pressure switch Prevents the boil er firing if there is insufficient air supply due to a fault or blockage Water pressure switch Prevents the boiler firing if there is less than 0 8 bar in the system Thermistors NTC There are two thermistors fitted for automatic control of the domestic hot water and the central heating flow temperature Safety thermostat Shuts down the boiler in the event of overheating Resets after a few minutes cooling Electronic controls incorporating the following fea tures Temperature selection for central heating from between 60 to 85 C Temperature selection for domestic hot water from between 35 to 60 C Continuous modulation of the gas
15. d non permanent dwellings BS 5482 Part 3 Installations in Boats BSEN721 Leisure accommodation vehicles ventila tion reguirements BSEN 1949 Installation of LPG System for Habitational Purposes in Leisure Accommodation Vehicles IMPORTANT Manufacturers instructions must NOT be taken in any way as over riding statutory regula tions 4 2 BOILER LOCATION In positioning the boiler the following limitations MUST be observed The position must allow for a suitable flue termina tion to be made The combination boiler must be installed on a flat vertical wall capable of supporting its weight If the boiler is in a room containing a bath or show er the boiler controls and power supply must be so situated that they can not be touched by the person using the bath or shower Attention is drawn to the current IEE Wiring Regulations and in Scotland the electrical provisions of the Building Regulations applicable in Scotland A compartment used to enclose the appliance MUST be designed and constructed specifically for the purpose An existing cupboard or compartment may be used provided it is modified accordingly 10 Ventilation requirements as stated in this manual must be observed Minimum clearance as stated in the technical data must be observed 4 3 FLUE TERMINAL POSITION The boiler MUST be installed so that the terminal is exposed to the external air It is important that the position of the terminal
16. e system is correct 0 8 to 1 6 bar Check the operation of the relief valve by turning 74 turn and check it closes without further leakage Check the correct operation of the gauge The pres sure should increase slightly as the temperature rises Finally check the filters which is situated in the 8 TROUBLESHOOTING The FEB 24E has a self diagnostic system built into its printed circuit board Should a safety related or various other faults occur then the boiler will failsafe by locking out which is indicated by the red neon on the control panel The fault can be identified by the different sequences in which the red neon flashes and the duration the neon stays illuminated The electronic failsafe is also backed by a mechanical means of protection should the electronics fail to detect a fault These mechani cal forms of protection will protect and ensure the safe shutdown of the boiler The software protection built into the P C B will run a system check on components which are essential to the safe operation of the boiler This occurs before any ignition sequence takes place If any component is found to be faulty or out of a predetermined range then lockout will be displayed cold water inlet pipe BURNER PRESSURE This is factory set but should you suspect a problem proceed as follows There is an easily accessible burner pressure nipple on the gas feed pipe between the burner and the modulating gas valve The burne
17. hen 20 C 13 5 5 AIR FLUE SYSTEM The standard flue kit supplied with the FEB 24E is a 1m horizontal coaxial air flue kit as shown below There are various other options available including a vertical flue kit and other variations on the horizontal kit Please ask for details Never use a flue system which is not specifically approved for use with this appli ance The horizontal pipe may be cut down to the length required The flue must be fitted with a 2 or 3 down wards incline to prevent any water or condensation from entering in the boiler Where a short run of less than 1 m is used such as in a caravan holiday home the air restrictor ring must be inserted into the boiler flue spigot before fitting the elbow HORIZONTAL FLUE Y 60 100mm COAXIAL Y 3 2 gt Q 60 100 Coaxial pipe 0 5m 1m Fr 2100 restrictor gt gt ring 14 6 COMMISSIONING INSTRUCTIONS Before commissioning the appliance the whole gas installation including the meter if fitted MUST be purged and tested for gas soundness IMPORTANT open all doors and windows extin guish naked lights and DO NOT SMOKE whilst purging the gas line Before commencing the commissioning procedure ensure that the central heating system and the domestic hot and cold water system have been flushed This will remove contamination which could cause the boiler to fail 6 1 DOMESTIC HOT WATER Turn on the DHW isolation va
18. k must be fitted in the sup ply close to the boiler or use morco part number FW0391 The complete installation must be tested for gas soundness 4 7 WATER SYSTEMS GENERAL This appliance is designed for connection to sealed central heating water systems 11 Prior to filling the central heating system see sec tion 6 2 It is recommended that where the system is installed in a caravan holiday home subject to non continuous use anti freeze is used 4 8 REQUIREMENTS FOR SEALED WATER SYSTEMS The heating system design should be based on the following information The available pump head is given below Aminimum flow rate corresponding to a heating dif ferential of 20 C must be obtained at all times A heating by pass should be fitted to ensure that the above condition is satisfied If thermostatic radi ator valves are to be installed at least one radiator should be without a thermostatic valve usually the bathroom radiator Asealed system must only be filled by a competent person using an approved filling loop connected between the mains water supply pipe and the central heating return pipe Once filled the loop should be disconnected and left adjacent to the boiler AVAILABLE PUMP HEAD 500 400 1 300 200 100 0 Flow I h 1000 Pressure mbar 0 200 400 600 800 by pass closed by pass open The following paragraphs outline the s
19. lve Fill and vent the installation by turning on the various hot water taps in the installation Make sure that there are no leaks in the installation 6 2 CENTRAL HEATING CIRCUIT In order for the boiler to function correctly the pres sure in the central heating circuit must be between 0 8 and 1 6 bar when cold Both the boiler and the central heating installation must be purged of any air in the water pipes which may cause noise and the incorrect functioning of the system The boiler is fitted with an automatic air vent In order to fill the installation correctly the following sequence must be followed Open one or more radiator bleed vent screws Fill the central heating circuit using the approved method given in section 4 8 Turn off each of the air vents as water starts to appear from them Turn off the filling tap when the pressure gauge exceeds 1 6 bar Turn the main control switch to the winter setting making sure that the pump runs The pump will not run if there is insufficient pressure Vent the central heating circuit once more Then let the pressure in the circuit settle at 1 6 bar If neces sary open the pressure relief valve to reduce the pressure in the system Make sure that there are no leaks in the installation 6 3 GAS CIRCUIT Purge the gas circuit as described above Turn on the gas cock to the installation and check that there are no leaks using leak detection fluid 6 4
20. nec essary a pressure reducing valve should be fitted to the mains supply before D H W inlet connection The DHW performance is summarised in the graph D HW Performance graph 60 C 7 55 l min o e u 4 B wW Q uu u E w E 2 5 a 4 2 3 4 5 6 7 8 9 10 11 12 13 14 FLOW D H W l min COLD WATER INLET TEMPERATURE 15 C The final 1000 mm 40 in of the mains supply pipe to the boiler must be copper If the appliance is installed in an area where the temporary hardness of the water supply is high say over 150 ppm the fitting of an in line scale inhibitor may be an advantage Devices capable of preventing the flow of expan sion water e g non return valves and or loose jumpered stop cocks should not be fitted unless sep arate arrangements are made for expansion water If a non return valve is fitted in the incoming water supply e g in line with scale inhibitor then a D H W expansion vessel MUST be obtained and fitted For specific information relating to fittings exAmPLe Shower washing machines etc suitable for connection in the D H W circuit consult the Local Water Undertaking however the following informa tion is given for guidance Domestic hot cold water supply taps and mixing taps All equipment designed for use at mains water pressure is suitable Showers Any mains pressure
21. ng selector knob clockwise from the summer set ting The boiler will fire up automatically when either the time clock room stat or boiler stat calls for central heating or a hot tap is opened for hot water If a hot tap is opened the boiler gives pri ority to hot water delivery with the central heating on standby until the tap is closed The temperature of the radiators can be selected between 60 C and 80 C by turning the knob USING THE PROGRAMMABLE CLOCK 1 Set the correct time by rotating the minute hand until the arrowhead points at the correct time on the 24 hour dial 2 Check the position of the manual override switch just to the bottom of the clock face This has three positions Left is ON overriding the timer mode i is ti i i CL EE ape timer mode with ON OFF times governed by the S Right position is OFF The heating will not work at all regardless of the main boiler control switch except if triggered by the built in frost protection thermostat 3 To set on off times move all the white tappets in the outer ring between the required on and off times to the outer posi tion For example if you want the heating to come on at 6am and switch off at 10am move all the tappets outwards between these two times Each tappet represents a quarter of an hour Set as many on off times as required within a 24 hour period RED LIGHT LOCK OUT Should the boiler fail to ignite due to lack of gas poor weather condi
22. osecution It is in your own interest and that of safety to ensure that the law is complied with Read these instructions carefully before attempting to operate the appliance Comply with all applicable warn ings Do not interfere with any sealed components and use the appliance only in accordance with these instructions INTRODUCTION The Fagor FEB 24E is a wall hung room sealed fan assisted microprocessor controlled fully modulating gas combination boiler for providing both central heating and domestic hot water SUPER compact FEB 24E 1 Pressure gauge 4 Clock 2 Heating service and heating temperature selector 5 Green light power on and flashing burner on 3 Main control reset and D H W temperature selec 6 Red light lock out tor DOMESTIC HOT WATER SERVICE Turn the main control switch setting in order to turn the boiler on The green light will come on indicating that the boiler is ready to supply domestic hot water whenever there is a demand for it When a hot tap is opened the boiler automatically fires to deliv er hot water and the green light flashes indicating the burner is on A water temperature of between 35 and 60 C can be selected by turning the domestic hot water temperature regulat ing knob HOT WATER AND CENTRAL HEATING SERVICE With the main control switch on and the green light displayed turn the heati
23. out IMPORTANT Whenever the boiler has been left idle for any length of time or when a new gas bottle is installed propane models the appliance may switch off due to the presence of air in the pipes In cases such as these repeat the ignition operation until all of the air has been purged from the system FROST PROTECTION Providing the boiler power supply and gas supply is connected the boiler will automatically fire on minimum when near freezing conditions are detected When the temperature in the system reaches 20 C it will switch off For winter storage see notes at the end of this section NOTE It is still necessary to drain the domestic hot and cold water system ANTI PUMP SEIZURE DEVICE When central heating is not being used but the boiler is in the summer setting for domestic hot water only the pump will automatically run for one minute every 24 hours to prevent it seizing If the appliance has been shut down with the electrical supply switched off for a period this device will not work The pump may be found to have jammed when the appliance is switched back on If so consult your installer or service engi neer NOTE seized pumps are not covered under warranty PRESSURE GAUGE The pressure gauge should indicate approximately between 0 8 and 1 6 bar If the pressure is seen to decrease over a period of time there is a water leak The boiler is fitted with a safety device to prevent it work ing below a pressure of 0 8 bar
24. pecifications of the items fitted to the boiler Expansion vessel The following table gives the maximum system vol ume that the integral 7 expansion vessel can sustain under different temperature conditions If the system volume exceeds that shown an additional expansion vessel must be fitted and connected to the heating system primary return pipe as close as possible to the appliance If an extra vessel is required ensure that the total capacity of both vessels is adequate If the pressure gauge indicates 2 2 bar or greater when the appliance is at maximum temperature with all radiators in circulation an extra expansion vessel is required 50 100 P Cold pressure bar C System capacity litres Pressure relief valve A pressure relief valve set 3 bar 43 5psi is fitted and a discharge pipe is routed to the outside of the appli ance This discharge pipe should be extended to ter minate safely away from the appliance to a point where a discharge would not cause damage to per sons or property but would be detected The pipe should be able to withstand boiling water be a mini mum of 15mm in diameter and not include any upward pipe runs or horizontal runs prone to freezing 4 9 D H W SYSTEMS Check that mains supply pressure is within the pre scribed limits refer to technical data page 7 If
25. r pressure nipple should give a reading of 35 mbar when the boiler is at full power on D H W mode Remove the main cable plug to the gas valve to get a minimum burner pressure reading which should be 4 4 mbar N B There is a logic program built into the central heating enabling it to detect when it is connected to a small system This may pre vent the burner from firing on full max press so ensure burner pressure is only tested in DHW mode FINAL CHECKS Turn all the controls to their max position so that the appliance begins to function Check for gas leaks using a suitable detector Check the boiler functions correctly in both central heating and domestic hot water modes The green light will start flashing when the boiler is firing in either mode FAULT CODES Each fault code begins and finishes with the red neon illuminated for 5 seconds the relevant fault is then indicated by the number of 1 second flashes which occur between the 5 second illuminations These range from none to 12 flashes Please be patient when counting the sequence as the correct identifi cation of the fault will save time on isolating and rec tifying the problem 17 EXAMPLES Fault 4 P C B failure would display the following sequence of the red neon 5 seconds 1 586 1 8606 1sec 1sec 5 seconds N B The sequence repeats itself until either the reset button is depressed or the fault is rectified Some faults require the component temperature
26. rate and increase the temperature For example the shower ensure the head is free from blockages caused by scale Due to the restrictive nature of simple mixer showers it is wise to turn the temperature selector down on the boiler before using the shower If a tap or shower head is too restrictive due to a fault or blockage the flow rate will be reduced to below the rate at which the boiler is able to modulate resulting in a wide swing in temperatures Either fix the restric tion or turn the temperature selector on the boiler down Caution The boiler can produce water at over 70 C when in central heating mode If you run a hot tap when the boiler has been heating the radiators the initial flow through the hot tap could be very hot DO NOT PLACE YOUR HANDS under the tap or use the shower until this initial flow has passed Allow time 30 seconds for the temperature to stabilise after making an adjustment at the tap before mak ing further adjustments APPLIANCE SAFETY LOCK OUT This boiler has a cut out indicator built in to it Whenever a malfunction is detected in the boiler the boiler switches off automatically and the cut out indicator lights up red indicator light To reset the boiler rotate the main control knob to the position and go back to the chosen position Some lockout sequences require the thermistors to cool to within normal operating temperatures before the boiler will reset The red indicator light should go
27. ting the boiler is ready to supply it giv ing priority to the D H W with the central heating on standby until the D H W demand ceases 6 5 4 Turning the boiler off Turn the main control switch to the O setting Turn off the gas supply to the boiler 6 5 5 Appliance safety lock out This boiler has a cut out indicator built in to it Whenever a malfunction is detected the boiler switches off automatically and the indicator lights up 15 red pilot light To restart the boiler Set the main control on the position and then turn it back to the chosen position The red indicator should go out IMPORTANT Whenever the boiler has been left idle for any length of time or when a new gas bottle is installed propane models the appliance may switch off due to the presence of air in the pipes In cases such as these the main control switch may be turned to position several times until all the air is expelled 6 6 FINAL CHECKS Re light and test for gas soundness Set the C H and D H W temperature selectors to the reguired settings Ensure that the time clock and or room stat if fit ted are set to the reguired setting s 6 7 USER S INSTRUCTIONS Upon completion of testing the system the installer should Give the users Instructions to the owner and emphasise their responsibilities under the Gas Safety Installation and Use Regulations 1998 Explain and demonstrate the lighting and shut do
28. ting pressure P3 Output for central heating adjustment PE eT 3 TECHNICAL DATA Model FEB 24EUK Category 112H3P Type C12 C32 042 052 C82 B22 KW 23 7 Maximum output Central heating and domestic Btu h 80 840 hot water performances kW 76 Minimum output Btu h 26 151 Nominal central heating and Maximum kW 28 9 domestic hot input Gross Minimum kW 92 Nominal central heating and Maximum kW 26 domestic hot water input Nett Minimum kW 83 Domestic hot water flow rate at 25 C I min 13 6 Domestic hot water flow rate at 35 C l min 9 7 Nominal D H W flow rate at 34 C l min 10 Minimum flow rate for activating D H W l min 2 Maximum Central heating 2 5 Operating pressure bar Maximum D H W 10 Minimum D H W activation 0 3 Expansion vessel capacity 1 7 Temperature selection range Central heating circu it 60 85 C D H W circuit 35 60 Natural G 20 20 Gas inlet pressure mbar Propane G 31 37 Natural G 20 m3 h 2 75 Gas consumption Hi Propane G 31 kg h 2 04 Electrical supply V Hz 230V 50Hz Max power consumption W 12
29. tions etc It will lockout and the red neon will be dis played To reset turn the main control switch to off then turn on again If the boiler constantly locks out call your service engi neer TURNING THE BOILER OFF Turn the main control switch to the position NOTE In this position the automatic safety devices such as frost protection and anti pump seizure are still operative To shut down completely and isolate the mains supply the plug must be removed from the wall GENERAL GUIDANCE NOTES ON HOT WATER DELIVERY The temperature of the hot water is governed by both the ambient temperature of the cold water supply and its flow rate through the boiler I E at a flow rate of 13 6L min there will be a maximum rise of 25 C above ambient At a flow rate of 6 8L min there will be a rise of 50 C above ambient the slower the flow rate the greater the temperature rise The flow rate of the hot water is controlled by the hot outlet tap The temperature selector on the boiler is effective only when there is either a low water flow rate or a high ambient water temperature The boiler can theoretically supply more than one outlet simultaneously However in practice the tap which is nearest will receive the most hot water If the shower is in use and a kitchen tap is opened virtually all the hot water will be diverted to the kitchen as it offers the least resistance If an outlet is too restrictive it will slow down the flow
30. wn procedures Advise the owner on the efficient use of the system including the use and adjustment of all system con trols for both D H W and C H Advise the user of the precautions necessary to prevent damage to the system and to the building in the event of the system remaining inoperative during frost conditions Explain the function of the boiler lock out devices and how to reset it Emphasise that if cut out per sists the boiler should be turned off and the installer or service engineer consulted Stress the importance of an annual service by a CORGI registered heating engineer 7 ROUTINE SERVICING INSTRUCTIONS To ensure continued efficient operation of the appli ance it is recommended that it is checked and serv iced as necessary at regular intervals The frequen cy of servicing will depend upon the particular instal lation conditions and usage but in general once a year should be adequate It is the law that any service work must be carried out by registered personnel C O R G Before commencing any service operation ISOLATE the mains electric supply and TURN OFF the gas supply at the main service cock Service the appli ance by following the full procedure detailed below MINIMUM CLEARANCE REQUIRED FOR SERVIC ING AND REPLACEMENT OF PARTS Distance at the side The minimum distance necessary for carrying out maintenance operations is 5 mm Distance at the top The minimum dist
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