Home

User manual and Installation instructions

1. Gas supply pressures Maximum condensing Minimum condensing Central heating Maximum flow temp z o lt m l E Minimum flow temp Maximum pressure Minimum pressure Available head in 1000 I h Seasonal efficiency Restrictors references Gas Air mm color 5 65 Fuchsia 4 30 Fuchsia TECHNICAL INFORMATION Electrical Data Other specifications Power consumption Protection degree eight dry ater volume in the boiler External fuse rating Internal fuse rating Referred to the net calorific value at 15 C and 1013 25 mbar G20 34 02 MJ m G31 46 34 MJ kg Flue design Referred to the gross calorific value at 15 C and Coaxial flue pipe diameter 1013 25 mbar G20 37 78 MJ m G31 50 37 MJ kg Twin split pipes diameter The value is used in the UK Government s Standard Roofl flue pipe diameter Assessment Procedure SAP for energy rating of dwellings The test data from which it has been calcu lated have been certified by a notified body Nominal heat flow rate Exhaust temperature Values subject to tolerance Smoke production Values refer to tests with a 1 m flue working at the nominal heat input CO contents CO content with gas G20 range min max ICO content with gas G31 r
2. C Therefore when the boiler is not lit or used in cold weather with consequent risk of freezing do not switch off the boiler at the fused spur isolation switch or close the gas inlet cock When you do not expect to use the boiler for a long period and the boiler is not to be used for frost protection then follow the in structions given in section Extinguishing to page 13 2 2 Refilling procedure Isolate the boiler from the electrical sup ply at the fused spur Reconnect the filling loop as demonstrated in Fig 2 1 Control valve Double check valve Temporary connection 5t Supply pipe cold water inlet J Control valve C h return pipe Fig 2 1 Open the valves of the filling loop and watch the gauge until it reaches normal filling pressure as shown in Fig 2 2 pressure Fig 2 2 10 INSTRUCTIONS FOR USE Close the valves and remove the filling loop If you experience any difficulty with the operation of the boiler switch off the boiler immediately at the fused spur iso lation switch and contact your Installer or an approved Service Engineer Air introduced into the boiler during this fill ing process will vent through the automatic air purger fitted to the boiler You may also find it necessary to vent air from your radia tor circuit using your radiator key however be aware that excessive venting will cause the pressure in the system to drop Always ensu
3. Fig 4 4 model M110B 32SM Operation of integral By pass valve The boiler is equipped with an automatic by pass valve 45on page 24 which protects the condensing primary exchanger The integral automatic by pass will ensure a minimum flow through the primary heat exchanger of the boiler in the event that the flow around the central heating circuit is restricted due to closure of thermostatic or System control valves 4 4 Expansion vessel Note this boiler is designed for opera tion only in a sealed central heating sys tem The height difference between the pressure relief valve and the highest point in the sys tem may be 10 m at most For greater differences increase the pre load pressure in the expansion vessel and the system when cold by 0 1 bar for each additional 1 m Capacity Pre load pressure Maximum volume of water in the Where conditions are Average maximum temperature of the sys tem is 85 C Initial temperature when filling up the sys tem is 10 C For systems with volumes great Q er than 109 I an additional ex pansion vessel must be provid ed 25 z o lt x m l 7 TECHNICAL INFORMATION 4 5 Technical data mod M110B 24SM Domestic hot water net Maximum temperature Minimum temperature gross Maximum pressure net Minimum pressure gross 30 rise 35 rise
4. Precautions for installation For the installation proceed as follows 250 25 25 200 All measures are in mm Fig 6 1 When installing the boiler in a cupboard cover or alcove allow at least 50 mm per manent clearance from the front face of the boiler Also ensure sufficient clearance to allow free access for servicing and the lowering of the front control panel If the boiler is installed outside cover the appliance to protect it against the ele ments and add some special anti freeze neutralised to the c h system 96 INSTALLATION Before installing the boiler on an existing c h system flush it out thoroughly be fore fitting the boiler so as to remove muddy deposits It is advisable to equip the system with a sediment filter or use a water treatment product in the circulating water The latter option in particular not only cleans out the system but also has an anti corrosive effect by promoting formation of a protective skin on metal surfaces and neu tralising gases present in the water We recommend the use of a suitable uni versal inhibitory to protect the c h system from corrosion 6 3 Installing the bracket Precautions Before mounting the bracket check that the dimensions for fitting the exhaust fume duct are complied with refer to the leaflet includ ed with the flue kit packed separately Utilise the paper template supplied with the boiler to determine the fixing posit
5. and that it meets the requirements of the appropriate Building Regulations The Benchmark Checklist can be used to dem onstrate compliance with Building Regula tions and should be provided to the cus tomer for future reference Installers are required to carry out instal lation commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heat ing and Hotwater Industry Council who manage and promote the Scheme Visit www centralheating co uk for more infor mation Our Company supports the Benchmark ini tiative The Benchmark Checklist is locat ed at the back of this manual and should be completed by the Installing Commis sioning Engineer and handed over to the User for future reference by other visiting Engineers Also included is the Service In terval Record card that should be complet ed by the Service Engineer following the annual service maintenance of the boiler and system For Ireland IE it is necessary to complete a Declaration of Conformity to indicate compliance to 1 S 813 2002 This appliance must be installed by a com petent person in accordance with the Gas Safety installation amp Use Regulations 5 1 Related documents The installation of this appliance must be in accordance with the relevant requirements of the current Gas Safety Installation amp Use Regulations the Local Building Regulations the current E E Wiring Regulations the R
6. ing to the current day considering that but ton 1 Monday button 2 Tuesday and so on The clock starts by moving the switch A to the AUTO position Setting example shown in Fig 2 14 14 Current time 16 30 day Thursday Setting the switching time and day or days 20 memory locations are available corre sponding to 10 on off sequences Set the mode selector switch A to the C1 position The symbols shown in Fig 2 15 appears in the display LA Es BI TIMER Fig 2 15 Press the buttons D or E to set the desired ON time Press the buttons G to set the desired day or days of operation Press the enter button C to confirm the setting and to continue programming the OFF time Set the OFF time as explained above for the ON setting and confirm by pressing the en ter button C Proceed in the same way for other settings Setting example shown in Fig 2 16 ON time 7 45 day Monday to Friday K OFF time 10 30 day Monday to Friday INSTRUCTIONS FOR USE Fig 2 16 Activating the timed settings Set the mode selector switch A to the AUTO position shown in Fig 2 17 The current time and day appears in the display The ON OFF display J indicates the current state of operation according to the settings O 0 Os 0 000 Fig 2 17 Note when the mode selector switch A is in the AUTO position and the boiler is switched off at the fused spur isolation switch the display J indicates o
7. Connect the earth wire yellow green Connection of a room thermostat The room thermostat must be connected to the terminal block situated next to the con trol panel Any external controls and connection lines must be rated at 230 V but under no circumstances should external live voltage be connected to the room ther mostat link on the boiler When connecting any type of external control the link W in Fig 6 15 must be removed 42 INSTALLATION To the fused spur isolation L N switch I S terminal block w ems 8 2 Ae ri HOLS External controls OO terminal block Oro ov Fig 6 15 Connect the room thermostat between ter minals 1 and 3 as shown in Fig 6 16 or Fig 6 17 Do not connect live wires to ter A minals to which the room ther mostat must be connected Room thermostat 230V rating L N K IK tal COLO 3 2 1 WON Power supply S I S L S terminal block Oo o OIOLA External controls terminal block Room thermostat with delay resistor 230V rating Power supply terminal block LG 2 External controls terminal block SD Fig 6 17 Route the electrical supply flexible cord and the external control flexible cord as illustrated in Fig 6 18 Lock the flexible c
8. The temporary connection must be re moved immediately after filling Control valve Double check valve Temporary Z connection Control valve Supply pipe cold water inlet C h return pipe Fig 5 4 The installer should ensure that no leaks ex ist either inside the boiler or on the system as frequent filling of the system could cause pre mature scaling of the heat exchanger 5 9 Domestic water The domestic water installation must be in ac cordance with the relevant recommendations of BS 5546 Copper tubing to BS EN 1057 is recommended for water carrying pipework and must be use for pipework carrying potable water For Ireland IE refer to 1 S 813 2002 5 10 Water treatment C h circuit Where a new boiler is fitted to a new system with either plastic or copper pipes it is impor tant the system is fully flushed on completion to ensure flux residues swarfs oils and other installation debris is removed Where a new boiler is fitted to an existing sys tem it is important the debris from the existing system is fully removed in order to ensure the efficiency of the new appliance is maintained s345 GENERAL REQUIREMENTS Details on flushing procedure are given in the section Initial filling of the system to page 45 of this manual D h w circuit scale protection In areas where the water is hard i e more than 200 ppm total hardness as defined by BS 7593 19
9. and the other ap pliance when they are in use at the same time Pipework must be of adequate size Pipes of a smaller size than the boiler inlet connection should not be used Installation pipes should be fitted in accord ance with BS 6891 and the complete installa tion should be tested for tightness For Ireland IE refer to 1 5 813 2002 5 5 Airsupply The room in which the boiler is installed does not require a purpose provided air vent 5 6 Ventilation If installed in a cupboard or compartment it is not necessary to provide additional ventilation for cooling for this particular product However consideration must be given to clearance re quirements for maintenance section Precau tions for installation to page 36 and under no circumstances must stored articles be al lowed to come into contact with the boiler or flue pipe 5 7 Condensate drain Ensure that the condensate discharge com plies with the national or local regulations in force The condensate pipe must be fitted in accordance with Building Regulations Drain pipe material should be resistant to acid as the condensate is slightly acid with a pH less than 6 5 The boiler includes a trap 320n page 24 that prevents the combustion prod ucts entering the drain The boilers incorporate a condensate trap with a 75 mm seal to comply with BS6798 2000 The schematic diagrams of possible connec tions are given in Fig 5 2 and Fig 5 3 The length of the cond
10. boiler on for the boiler to operate on heat ing for a few seconds then switch off After 3 4 minutes has elapsed the boiler will then re ignite and operate perfectly normally The ignition delay cycle does not prevent normal operation of the boiler to provide d h w If external controls are fitted e g Timeclock room thermostat ensure they call for heat Turn on the electricity supply to the boil er switching on the fused spur isolation Switch The appliance operation light 10 will flash every 4 seconds Turn the function selector 8 as in Fig 7 6 The appliance operation light 10 will flash every 2 seconds The boiler will now go through an ignition sequence and the burner will light If after four ignition attempts about four minutes the boiler fails to light the boiler will go to lockout and the lock out signal lamp 6 will appear To reset the boiler press and release the boiler reset button 7 For the first lighting up and following main tenance procedures for the gas supply it may be necessary to repeat the resetting operation several times so as to remove the air present in the pipework After five consecutive resetting attempts the reset button is inhibited To restore its func tion it is necessary to switch the boiler off and on from the electrical mains using the fused spur isolation switch fitted adjacent to the appliance 47 Z O x E E amp 2 z zZ le x E
11. mbar G20 37 78 MJ m G31 50 37 MJ kg Twin split pipes diameter The value is used in the UK Government s Standard Roofl flue pipe diameter Assessment Procedure SAP for energy rating of dwellings The test data from which it has been calcu lated have been certified by a notified body Nominal heat flow rate Exhaust temperature Values subject to tolerance Smoke production Values refer to tests with a 1 m flue working at the nominal heat input CO contents CO content with gas G20 range min max ICO content with gas G31 range min max At nominal heat input of 25 7 kW CO content with gas G20 range min max CO content with gas G31 range min max z io lt m At minimum heat input of 6 0 kw Other flue gas figures At nominal heat input non condensing Exhaust temperature 29 z o lt x m a E N GENERAL REQUIREMENTS 5 GENERAL REQUIREMENTS DEN CHING THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Benchmark places responsibilities on both manufacturers and installers The purpose is to ensure that customers are provided with the correct equipment for their needs that it is installed commissioned and ser viced in accordance with the manufac turer s instructions by competent persons
12. setting to be modified or deleted The day display H gives a flashing indica tion of the active day or group of days Press the button or the buttons G corre sponding to the day or days for which it is intended to apply the modification The cor 17 INSTRUCTIONS FOR USE responding day display stops flashing and a new switching time can be set or deleted The time setting can be modified now by pressing button D or E and the operation can be switched on or off by pressing the button F To delete a time set press the button D or E until the symbols shown in Fig 2 22 ap pears in the time display I The new settings are memorised by press ing the button A Manual operation The operation of the time switch can be forced on or off constantly or for a timed period To force constantly on or off the timer op eration press repeatedly the button A until the display shows the symbol TIMER The symbols shown in Fig 2 25 appears on the display orr i M i TA D O O Q 000 0090 Fig 2 25 The operation can be switched permanently on or off by pressing the button F and leav ing the display shows the symbol TIMER To force a timed delay on or off operation press repeatedly the button A until the dis play shows the symbol TIMER Set the time delay by pressing the button D or E and the operation can be forced on or off by pressing the button F The time delay ca
13. the pipe that discharges the exhaust gasses Consequently it is pos sible to extend the flue system to a greater distance than that provided by the standard horizontal co axial flue If either an additional 45 or 90 accessory elbow is used then the maximum permissi ble length of either pipe must be reduced by 0 90 m or 1 65 m respectively Referring to Fig 6 7 the minimum length required for pipes a and b is 0 3 m 39 z o ras lt x m l E 7 z O E lt x E a E INSTALLATION Flue outlet pipe a 90 1 65m Q 45 0 9m Air intake pipe LA A p r Type C43 a Fig 6 7 N B The air intake and the flue outlet must not terminate on opposite sides of the building Vertical roof kit Fig 6 8 This kit allows vertical termination of the flue pipe through the roof The kit is 1 2 min length Extension pieces Co axial are also available which allows the flue system to be extended to a total overall maximum per missible length of 10 m Optional 45 and 90 elbows can be used to offset the flue route Each additional elbow reduces the overall acceptable length of the flue system as fol lows 0 5 m 1m For the elbow of 45 loss For the elbow of 90 loss 40 Type C33 90 1m Q F1 45 0 5m max 10 m 9125 e al Pluming kit Fig 6 9 Co axial 60 100 mm vertical part 60 mm flue outlet This kit a
14. used as shown in Fig 8 8 By turning the knob 9 the lock out signal lamp 6 blinks quickly 2 per seconds indicating that the setting has changed and must be memorised To memorize the setting keep pressed the reset button 7 for about 5 seconds until the lamps 10 briefly blinks simultaneously Gas setting second step Press the reset button 7 repeatedly 5 times until the lamps 10 give the indica tion as in Fig 8 10 gas type mode 2 Where Lamp OFF O e Oo a e Lamp ON Fig 8 10 At this step it is possible to visualize the current setting by keeping the reset button 7 pressed for more than 5 seconds The lamps 10 will flash a number of times cor responding to the setting of the knob 9 in Fig 8 8 To change the setting turn the knob 9 on a position corresponding to the gas used as shown in Fig 8 8 By turning the knob 9 the lock out signal lamp 6 blinks quickly 2 per seconds indicating that the setting has changed and must be memorised To memorize the setting keep pressed the reset button 7 for about 5 seconds until the lamps 10 briefly blinks simultaneously Open the gas cock 13 in Fig 8 11 BA W gt gt 13 Open position e Fig 8 11 To leave the gas setting mode and normal ly run the boiler turn it ON by the function selector 8 Fig 8 12 on the desired opera tion and checking that the burner lights up uniformly In any case the boiler automati cally r
15. 2 0 020 22005 9 e GasSaver optional lisse 41 6 10 Electrical connections 42 2 INSTRUCTIONS FORUSE 10 6 11 External frost protection 44 2 1 Warnings eee hdd ka Unees stp deeds 10 22 Refiling procedure 04 10 7 COMMISSIONING ehh rr rr n ntn 45 2 8 Ignition s oss errien nEn aS ease 11 7 4 Wamings sese eee iss 45 2 4 C h circuit temperature 11 7 2 Electrical installation 45 2 5 D h w temperature 0 00000 12 7 3 Gas supply installation 45 2 6 jExtinguishing Len ceded ates 13 7 4 Filling the d h w system lusus 45 2 7 Buliltin time switchA 13 7 5 Initial filling of the system lusus 45 2 8 Builtin time switch B 04 16 2 quoe pe and traps p ighting the boiler llis esses 3 HORE CEU MD S 1 7 8 Checking the gas supply pressure 48 32 Frost protecti Gresset bxesonekd mbar 19 7 9 Maximum output in c h mode 49 33 Cord pro ws ds Be capt ie gested pps 19 7 10 External temperature probe setting optional 49 34 Eu Enc e niet Pide aey t caer 48 7 11 Checking the ignition device 50 35 Ee danna e AG a NUUS E 19 7 12 Checking the flue system 51 36 O tional f i Sie fe reper E ert DI cU E 20 7 13 Checking the condensate drain pipe 51 P
16. 8 4 GAS CONVERSION Restrictors Fig 8 4 Re assemble the pipe gas the front panel of the combustion chamber and the lid of the sealed chamber After any service operation on the com ponents of the gas circuit check all the connections for gas leaks Gas setting first step Switch on the appliance at the mains iso lating spur Turn the boiler OFF positioning the func tion selector 8 as indicated in Fig 8 5 Disconnect the C h temperature probe NTC 18 in Fig 8 6 Keep pressed the reset button 7 for about 10 seconds until the lock out signal lamp 6 blinks Connect the C h temperature probe NTC 18 in Fig 8 6 Press the reset button 7 repeatedly 4 times until the lamps 10 give the indica tion as in Fig 8 7 gas type mode 1 Where Lamp OFF e o e P amp Lamp ON Fig 8 7 At this step it is possible to visualize the cur rent setting by keeping the reset button 7 pressed for more than 5 seconds The lamps 10 will flash a number of times correspond ing to the setting of the knob 9 in Fig 8 8 Gas type Gas type Setting No 4 Setting No 3 i 5 bs td 2 sy NATURAL 1 7 L P G 2583 LL 5 zZ lt z Lu zZ lt x MAINTENANCE GAS CONVERSION Position of knob 9 Natural gas G20 1 L P G G31 7 Fig 8 9 Gas supply To change the setting turn the knob 9 on a position corresponding to the gas
17. 93 Table 2 it is recommended that a proprietary scale reducing device is fitted into the boiler cold supply within the requirements of the local water company 5 11 Electrical supply Warning this appliance must be earthed External wiring to the appliance must be car ried out by a competent person and be in ac cordance with the current E E Regulations and any local regulations which apply Reference should be made to the current ETCI rules for electrical installations For Ireland IE refer to 1 5 813 2002 The boiler is supplied for connection to a 230 V 50 Hz supply The supply must be fused at 3A The method of connection to the electricity supply must facilitate complete electrical iso lation of the appliance by the use of a fused double pole isolator having a contact separa tion of atleast 3 mm between poles or alterna tively by the use of a 3A fused three pin plug and unswitched shuttered socket outlet both complying with BS 1363 The point of connection to the electricity sup ply must be readily accessible and adjacent to the appliance except were the appliance is installed in a bathroom this must then be sited outside the bathroom z o lt x m 7 35 z O lt x m N INSTALLATION 6 INSTALLATION 6 1 Warnings The use of gas appliances is subject to statutory control it is essential to observe the current regulations and laws in force see also chapte
18. ErATONA TAUS casado eiti k Re RAS ee 7 14 Instructing the user 000 51 3 TECHNICALINFORMATION 7a sesan 22 8 GAS CONVERSION 52 4 1 OVervioW iln e REPERI epe be ees 22 8 1 Warnin 52 Ads S oris pietas drin 4 2 Main diagram vga TENERE EA KEALE spams 23 6 2 POCOO ici cing da seas dd due a ENA 52 4 3 Hydraulic specifications 25 44 Expansion vessel 0 00 0 25 9 MAINTENANCE Se 55 4 5 Technical data mod M110B 24SM 26 94 Wamings nn 55 4 6 Technical data mod M110B 32SM 28 E Pismanting bonis panels i mptying the d h w system 5 GENERAL REQUIREMENTS 30 9 4 Emptying the c h system 0 55 5 1 Related documents 0 00 005 30 9 5 Combustion analysis check 56 5 2 Location of appliance 30 9 6 Cleaning the condensing heat exchanger and 5 3 Flue system e eb e RR re 31 D mer D noe Er RE 56 54 Gas supply iisee e 32 9 7 Checking the pressurisation in the expansion S S Air supply d ne Ea ME qd MR MA 32 V8SS6l ki eoe eoe dtervocetim sie EEEN 57 5 6 Ventilation Sina eae ded Wy ars E 32 9 8 Cleaning the burer 57 5 7 Condensate drain 00005 32 9 9 Checking the flue 57 8 Water circulation c h 0 00 0000 33 c dup pua UERSUM E 9 D ti t 34 9 10 Drain pipe inspection 57 5 10 WAGE
19. N E amp N COMMISSIONING 7 8 Checking the gas supply pressure This boiler has been factory tested to the highest quality control standards and set for the minimum and maximum gas working pressures connected to a 1 m flue and a gas supply pressure of 20 mbar Any variation in gas supply pressure or flue length may result in the customer experiencing a harmonic noise from the boiler In these circumstances it may be neces sary to reset the burner gas pressures in accordance with section 11 Gas Valve of the Service Manual It should be noted that a Flue Gas Ana lyser is required for this procedure Checking the inlet pressure Fig 7 7 Remove the front panel of the case see section Dismantling the external panels to page 55 and lower the control panel see Electrical connections to page 42 48 Loosen the internal screw on the Inlet Pressure Test Point 42 Fig 7 7 on the Outlet Pressure Test Point of the Gas Valve and connect a pressure gauge us ing a suitable hose Open the gas inlet valve 13on page 8 Turn on the electricity supply to the boil er switching on the fused spur isolation Switch The appliance operation light 10 will flash every 4 seconds Set the function knob 8 as illustrated in Fig 7 8 Open at least one hot water tap fully Read the inlet pressure value and ensure that it is within the limits given in the ta ble Gas supply pressur
20. Os 0 0 060 Fig 2 18 The operation can be switched permanently on or off by pressing the button F and leaving the switch A in the TIMER position To force a timed delay on or off operation set the mode selector switch A in the TIMER position Set the time delay by pressing the button D or E and the operation can be forced on or off by pressing the button F 215 INSTRUCTIONS FOR USE The time delay can be set within the follow ing ranges 1 to 23 hours with steps of 1 hour 1 to 27 days with steps of 1 day The time delay setting is activated by mov ing the switch A to the AUTO position The ON OFF display J flashes indicating that the current state of operation has been forced To delete the timed delay setting set the mode selector switch A in the TIMER posi tion press the button D or E until the sym bols shown in Fig 2 18 appears in the dis play and then set the mode selector switch Ato the AUTO position Setting example shown Fig 2 18 forced ON state for 4 hours Resetting To completely reset the timer press the re set button with a pointed object pencil CAUTION pushing the reset button will completely erase the settings as well as all the data including the current time and day 2 8 Built in time switch B The combi boilers are equipped with a built in electronic time switch 5on page 8 which controls the c h operation 16 J Tug Cita 99 M H B
21. PET Gps produ RU RUM tee E R 34 9 11 Visual inspection of appliance 58 541 Electrical j A 35 9 12 Gas pressures and soundness 58 a A i ictdces 9 13 Water inhibitor concentration 58 Mirror bM ene ener aes 38 GAS BOILER SYSTEM COMMISSIONING 6 2 Precautions for installation 36 CHECKLIST iiir asa acia ni rd eee 59 6 3 Installing the bracket 0 37 SERVICE RECORD 60 Abbreviations used in the manual C h Central heating D h w Domestic hot water D c w Domestic cold wate Appliance category IIZH3P Gas G20 20 mbar G31 37 mbar Country of destination United Kingdom GB Ireland IE This appliance conforms with the following EEC directive Gas Directive 2009 142 CE Boiler Efficiency Directive 92 42 CEE Electromagnetic Compatibility Directive 2004 108 CE Low Voltage Directive 2006 95 CE The manufacturer in the continuous process to improve his products reserves the right to modify the data expressed in the present documentation at any time and without prior notice The present documentation is an informative support and it can not be considered as a contract to wards third parties nm APPLIANCE DESCRIPTION 1 APPLIANCE DESCRIPTION 1 4 Overview The model and serial number of the boiler are printed on bottom right side Fig 1 1 1 Case front panel 2 Control panel 3 Control panel cover 1 2 Control
22. Service 10 Date Engineer Name Company Name Company Name Telephone No Telephone No Gas Safe Register No Gas Safe Register No Comments Comments Signature Signature NOTES 61 NOTES 62 uo 10 9 EIQUE UA T IL IU IN OLIMNI S 17962 1454 1 0412 64A5 UK Biasi UK Ltd Commercial Road Leamore Enterprise Park WALSALL WS2 7NQ Sales Tel 01922 714600 Tech Service Tel 01922 714636 www biasi co uk
23. Wall hung fanflue roomsealed high efficiency gas boiler User manual and Installation instructions GARDA PLUS HE Models G C Appl No M110B 24SM E 47 583 13 M110B 32SM E 47 583 14 C ss WARNING Congratulations on your choice GARDA PLUS HE are condensing high efficiency sealed chamber fan flue gas boilers They are fully electronically controlled and have electronic ignition The materials they are made of and the control systems they are equipped with give you safety a high level of comfort and energy savings to allow you to get the greatest benefit out of independent heating GARDA PLUS HE allow a higher efficiency by reducing the flue gas temperature such that the water vapour formed during the combustion is condensed out This allows a gain of useful heat that otherwise would be lost pen Cchinan THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Biasi UK Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety efficiency and performance Benchmark is managed and promoted by the Heating and Hot water Industry Council For more information visit www centralheating co uk A A A A DANGER The indications marked with this symbol must be observed to pre vent accidents
24. able drain pipe o Z z X E WARNING 4 On detecting the smell of gas don t operate any electrical switches the telephone or any device that may produce sparks open the windows and doors at once to create a draught of air which will purge the area shut off the gas cocks get the assistance of a qualified person Emergency telephone number Tel 0800 111999 Do not touch the appliance with parts of the body that are wet or damp and or bare feet Do not block or modify the condensate outlet and pipe work In case of structural work or maintenance near the exhaust duct and or fume exhaust devices or their attachments turn off the appliance On completion of the work have a professionally qualified person check their efficiency 4 Repairs under guarantee must be carried out only by a Biasi an approved engineer us ing genuine spare parts Thus do no more than switching off the boiler yourself see the instructions Your boiler allows heating up of water to a temperature less than boiling point must be connected to a central heating system and or a hot water supply system com patible with its performance and output can be used only for those purposes for which it has been specially designed must not be touched by children or by those unfamiliar with its operation must not be exposed to weather conditions 4 During the operation it is quite normal that the boiler produces a white plume of cond
25. ange min max At nominal heat input of 25 7 kW CO content with gas G20 range min max CO content with gas G31 range min max zZ io lt m At minimum heat input of 6 0 kw Other flue gas figures At nominal heat input non condensing Exhaust temperature 27 TECHNICAL INFORMATION 4 6 Technical data mod M110B 32SM Domestic hot water net Maximum temperature Minimum temperature gross Maximum pressure net Minimum pressure gross 30 rise 35 rise Gas supply pressures Maximum condensing Minimum condensing Central heating Maximum flow temp z o lt m l E Minimum flow temp Maximum pressure Minimum pressure Available head in 1000 I h Seasonal efficiency Restrictors references Gas Air mm color 6 90 5 00 TECHNICAL INFORMATION Electrical Data Other specifications Power consumption Protection degree eight dry ater volume in the boiler External fuse rating Internal fuse rating Referred to the net calorific value at 15 C and 1013 25 mbar G20 34 02 MJ m G31 46 34 MJ kg Flue design Referred to the gross calorific value at 15 C and Coaxial flue pipe diameter 1013 25
26. ation For unusual locations special procedures may be necessary and BS 6798 gives detailed guidance on this aspect Acompartment used to enclose the appliance must be designed specifically for this purpose This appliance is not suitable for external in stallation 5 3 Flue system The provision for satisfactory flue termination must be made as described in BS 5440 part 1 For Ireland IE refer to 1 5 813 2002 The appliance must be installed so that the flue terminal is exposed to external air It must not be installed so that the terminal discharges into an other room or space as an outhouse or lean to It is important that the po sition of the terminal allows a free passage of air across at all times The terminal should be located with due regard for the damage or discoloration that might oc cur to building products in the vicinity In cold and or humid weather water vapour may con dense on leaving the flue terminal the effect of such steaming must be considered Pluming may easily occur at the terminal Where possible terminal position which could cause a nuisance should be avoided The minimum acceptable spacing from the terminal to obstructions and ventilation open ings are specified in Fig 5 1 Fig 5 1 Terminal position mm A Directly below the window or other opening 300 B Below gutters soil pipes or drain pipes 75 C Below eaves 200 D Below balconies 600 E Below car port roof NO F From vertical
27. ave received a full and clear explanation of its operation The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations England and Wales All installations must be notified to Local Area Building Control either directly or through a Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer who should on receipt write the Notification Number on the Bench mark Checklist This product should be serviced regularly to optimise its safety efficiency and performance The service engineer should complete the relevant Service Record on the Benchmark Checklist after each service The Benchmark Checklist will be required in the event of any warranty Using the boiler 4 Before lighting the boiler you are advised to have a Gas Safety Registered Engineer check that the installation of the gas supply is gas tight is of the correct gauge for the flow to the boiler is fitted with all the safety and control devices required by the current Regulations 4 Ensure that Check with the Installer that he has connected and terminated the pressure relief valve in a manner which allows safe discharge The manufacturers are not responsible for damage caused by opening of the pressure relief valve and consequent escape of wa ter if this is not connected and terminated The installer has connected the condensate outlet to a suit
28. d In order to achieve optimal settings for economy and comfort we recommend ad justing the operating temperature of the c h water according to the outside temperature positioning the knob as follows Between From 5 to 15 C 5and 5 C CRORE Lower than 5 C Fig 2 7 Your qualified installer will be able to recom mend the most suitable adjustment for your system The temperature and pressure gauge 4 Fig 1 3 on page 8 will allow you to check that the set temperature is obtained Adjustment of temperature WITH the ex ternal temperature probe optional When the boiler is connected to the external temperature probe optional the tempera ture of the c h flow is automatically adjusted with reference to the external temperature In this case the boiler must be properly set by the Installer section External tempera ture probe setting optional to page 49 and the c h flow temperature control knob 8 must be positioned as illustrated in Fig 2 8 Fig 2 8 2 5 D h w temperature The temperature of the d h w leaving the boiler can be varied from a minimum of about 35 C to a maximum of about 55 C Fig 2 9 by turning the temperature con trol knob 9 Minimum af s 2 8 AS Maximum P Fig 2 9 Adjustment of the d h w temperature is completely separate from that of the c h circuit The adjustment system integrated within the boiler automatically controls the flo
29. d by the external temp probe The relationship between the external tem perature and the c h flow temperature is represented by the coefficient K Fig 7 9 that can be set between 0 and 6 as hereaf ter explained E g to obtain a flow temperature setting of 60 C when the external temperature is 5 C K must be set to 1 5 dashed line in Fig 7 9 C h flow temperature C K 6 K 4 K 3 80 70 60 50 40 30 KLA 20 20 15 10 5 0 5 10 15 20 25 External temperature C Fig 7 9 The appropriate value of the coefficient K depends on the design temperatures of the c h system as the minimum external tem perature and the corresponding c h flow temperature The coefficient K is factory set to 0 that is the setting for the operation with no external temperature probe fitted To set the coefficient K Turn on the electricity supply to the boil er switching on the fused spur isolation Switch Set the function knob 8 as illustrated in Fig 7 10 Keep pressed the reset button 7 for about 10 seconds until the lock out signal lamp 6 blinks The lamps should give the indication as in 49 z o lt x m a E 7 z o lt x E E COMMISSIONING Fig 7 11 coefficient K setting If not press the reset button repeatedly to obtain it Where O Lamp OFF O e i e Lamp ON Fig 7 11 To change the setting turn th
30. d side panels of the case section Dismantling the external panels to page 55 and the sealed cham ber lid Unscrew the condensing heat exchanger air purger valve 17 Fig 7 2 zZ o lt x m z E 7 45 z o lt x B 7 COMMISSIONING Fig 7 2 Lift the cap on the automatic air purger valve 25 in Fig 7 3 one full turn and leave open permanently Fig 7 3 Gradually open stopcock at the filling point connection to the c h system until water is heard to flow do not open fully Close the condensing heat exchanger air purger valve 17 Fig 7 2 when water be gins to flow out Open each radiator air vent starting at the lowest point of the system and close it only when clear water free of bubbles flows out Purge the air from the pump by unscrew ing the pump plug 28 Fig 7 3 release the pump shaft by turning in the direction indi cated by the arrow on the information plate 46 Replace the pump plug Continue filling the system The actual reading should ideally be 1 3 bar and not less than 0 3 bar Close all air release valves on the c h system Inspect the boiler and the system for wa ter soundness and remedy any leaks dis covered Cold flush the system to remove any loose particles and any system debris before starting the boiler for the first time The flushing procedure must be in line with BS7593 2006 Treatmen
31. drain pipes and soil pipes 150 G From internal corners 450 H From external corners 300 Above ground or balcony level 300 J Froma next door boundary 2500 K From a terminal facing a terminal 2500 L From an opening in the car port e g door window into dwelling NO M Vertically from a terminal in the same wall 1500 N Horizontally from a terminal in the same wall 300 O Above the roof pitch with roof slope less than or equal to 30 350 O Above the roof pitch with roof slope more than 30 600 P From wall face 300 Q From above or to side of an opening 600 Wherever practicable to do so the flue should be extended beyond the perimeter 31 z o r lt x m l E 7 Z o lt x E 7 GENERAL REQUIREMENTS of the balcony Consideration should be given to adding protection against condensate to the adja cent structure Wall terminals with horizontal discharge less than 2 5 m from a car parking space and less than 2 1 m above the ground Wall terminals less than 2 1 m above the ground with horizontal discharge of the flue products across a public footway or a frequently used private access route or a patio hard surface area 5 4 Gas supply The Gas meter is connected to the service pipe by the local gas region or a local gas re gion contractor If the gas supply for the boiler serves other appliances ensure that an adequate supply is available both to the boiler
32. e correct concentration of inhibitor in the heating water 58 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference Failure to install and commission according to the manufacturer s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty This does not affect the customer s statutory rights Customer Name Telephone Number Address Boiler Make and Model Boiler Serai Number _ 1111101101111111 ee Ee Commissioned by print name Gas Safe Register Number Company Name Telephone Number Company Address Commissioning Date To be completed by the customer on receipt of a Building Regulations Compliance Certificate Building Regulations Notification Number if applicable CONTROLS Tick the appropriate boxes Time and Temperature Control to Heating Room Thermostat and Programmable Load Weather Optimum Start Programmer Timer Room Thermostat Compensation Control Time and Temperature Control to Hot Water Cylinder Thermostat and Programmer Timer Comb
33. e flue system should be visually checked for soundness Check all clamps gaskets and fixing are secure and tight Ensure that the flue terminal is sited cor rectly in accordance with the flue fitting in structions and Fig 5 1 on page 31 of this manual To carry out a combustion check refer to the instructions given in the section Combus tion analysis check to page 56 Reference figures are given in the Techni cal Data section page 26 of this manual Flue gas figures 7 13 Checking the condensate drain pipe Check the soundness and integrity of the condensate drain pipe Verify the cleanness and correct filling of the condensate traps 7 14 Instructing the user Hand over this combined User amp Installation manual and the Service manual to the end user and explain how to use the unit in both c h and d h w modes Take the User step by step through the light ing instructions Show the User how to switch off the appli ance quickly and indicate the position of the electric supply isolator Explain the proper use and adjustment of all system controls this will ensure the great est possible fuel economy Explain the function and use of the function selector Explain and demonstrate the function of time and temperature controls if fitted Explain how to turn off the appliance for both short and long periods and advise on the precautions necessary to prevent dam age should the appliance be inoperative whe
34. e knob 9 on a position corresponding to the desired coefficient K By turning the knob 9 the lock out signal lamp 6 blinks quickly 2 per seconds indicating that the setting has changed and must be memorised Coeff K Setting No Fig 7 12 To memorize the setting keep pressed the reset button 7 for about 5 seconds until the lights 10 briefly blinks simultaneously To reset the boiler to the normal operation turn it OFF and ON by the function selec tor knob 8 In any case the boiler automat ically resets to its normal operation after 10 minutes After setting the coefficient K position the knob 8 as shown in Fig 7 13 in order to ob tain the c h flow temperature accordingly with the chart of Fig 7 9 Fig 7 13 However the setting point of the c h flow temperature can be manually increased or decreased within a range of 15 C by turn ing the knob 8 The effect of the knob 8 for a coefficient K setto 1 5 is illustrated in Fig 7 14 80 70 60 50 40 30 20 20 15 10 5 0 5 10 15 20 25 External temperature C Fig 7 14 7 11 Checking the ignition device With the burner on high flame close the gas cock After three ignition attempts within about three minutes the lock out signal lamp 6on page 8 must appear To reset the boiler press and release the boiler reset button 7on page 8 50 COMMISSIONING 7 12 Checking the flue system Th
35. ec tor 8 to the position shown in Fig 2 11 The appliance operation light 10 will flash every 4 seconds When you do not expect to use the boiler for a long period Switch off the electricity supply to the boil er by means of the fused spur isolation Switch Shut off the gas supply cock 14 and the valves for the water circuits fitted under the boiler Fig 2 12 Empty the water circuits if necessary as shown in the installation instructions in the section maintenance m TEE 13 Closed position Fig 2 12 2 7 Built in time switch A The combi boilers are equipped with a built in electronic time switch 5 Fig 1 3 on page 243 INSTRUCTIONS FOR USE 8 which controls the c h operation fara amas E a mt EEG 5 oO o e 0 0 0 6 AS eet Display and control panel Mode selector switch Reset button Enter button Increase setting button Decrease setting button On off button Day selection buttons Day display Time display ON OFF display Fig 2 13 cC I rommoou p Setting the current time and weekday Note with a new unit or when the reset but ton B has been pressed the first day indi cator H on the left and the time display is flashing Set the mode selector switch A to the po sition and press the buttons D or E until the current time appears in the display I Press the day selection button correspond
36. egulations and by laws of the local water un dertaking and in Scotland in accordance with the Building Standards Scotland Regulation Health and safety document n 635 Electricity at work regs It should also be in accordance with the British Standard Codes of Practice In Ireland IE The installation must be car ried out by a Competent Person and installed in accordance with the current edition of 1 5 813 2002 Domestic Gas Installations the current Building Regulations and reference should be made to the current ETCI rules for electrical installations 5 2 Location of appliance The appliance may be installed in any room or internal space although particular attention is drawn to the requirements of the current I E E Wiring Regulations and in Scotland the elec trical provisions of the Building Regulations applicable in Scotland with respect to the in stallation of the combined appliance in a room containing a bath or shower For Ireland IE reference should be made to the current edition of 1 5 813 2002 and the current ETCI rules for electrical installations Where a room sealed appliance is installed in a room containing a bath or shower any 30 GENERAL REQUIREMENTS electrical switch or appliance control uti lising mains electricity should be so situ ated that it cannot be touched by a person using the bath or shower The location must permit the provision of an adequate flue and termin
37. en sation vapour from the flue terminal This is due to the high efficiency of the appliance and may be particularly evident with low outdoor temperatures SSS Safe handling of substances Biasi products are manufactured in accordance with ISO 9001 and do not and will not contain any hazardous materials or substances such as asbestos mercury or C F C s The appliance packaging does not contain any substances which may be considered a hazard to health When handling or lifting always use safe techniques Keep your back straight bend your knees don t twist Move your feet avoid bending forwards and side way sand keep the load as close to your body as possible Where possible transport the boiler using a sack truck or other suitable trolly Always grip the boiler firmly and before lifting feel where the weight is concentrated to estab lish the centre of gravity repositioning yourself as necessary fie Combustion chamber panels Material mineral fibres Known hazards Some people can suffer reddening and itching of the skin Fibre entry into the eye will cause foreign body irritation which can cause severe irritation to people wearing contact lenses Irritation to respiratory tract Precautions Dust goggles will protect eyes People with a history of skin complaints may be particularly susceptible to irritation High dust levels are only likely to arise following harsh abrasion In general normal handling and use w
38. ensate pipe should be kept to a minimum any external pipe should not be more than 3 m in 32 mm pipe and insulated to prevent freezing To avoid condensate being trapped the drain pipe should be run with a fall of at least 2 5 45 mm m away from the boiler the number of bends and joints should be kept at minimum the drain pipe should be adequately fixed to prevent pipe sagging If a part of the drainpipe runs externally this part should be kept as short as possible and protected to reduce the risk of freezing zo GENERAL REQUIREMENTS Connection of condensate drainage pipe to in ternal soil and vent stack A Condensate drain Ys D UI Dimensions in mm Fig 5 2 A Boiler B Visible air break C 75mmtrap D Internal soil and vent stack E Invert F 450mm up to three storeys Connection of condensate drainage pipe downstream of a sink waste trap A Condensate drain Dimensions in mm Fig 5 3 A Boiler B Visible air break C 75mm trap G Sink H Open end of condensate drainage pipe direct into gully below grating but above water level Sink lip 5 8 Water circulation c h Detailed recommendations are given in BS 6798 and BS 5449 the following notes are given for general guidance For Ireland IE refer to 1 5 813 2002 Pipework Copper tubing to BSEN 1057 is recommended for water pipes Jointing should be either with capillary soldered or with compressio
39. erature on primary circuit If the lights combination observed is not included in the above table a fault may be indicated Reference should be made to the following table In this case switch off the boiler as de scribed in section Extinguishing to page 13 and call a competent and responsible Service Engineer VM V Faulty c h temperature O MV ANM probe NTC O ae o Faulty d h w temperature AMAN probe NTC ary o O Faulty primary circuit no oS water or absence of flow EN l 4 Sy l t lt O Q X Lack of burner ignition ZN Zay e ae ee Safety thermostat lock NV Uu out V n O4 Faulty fan control system N e N Flue temperature probe v NTC lock out e ec Open flue temperature U probe NTC 3 ly zQ 26 X a w M N N Faulty external probe if fitted temp yiz ly WANE SOS Z 0 Flame detection error ZTN ZAN ly x ps ZTN Other faults O Lack of power supply or fauly electr control p c b O O Meaning of symbols O Lamp OFF Lamp ON ly c8 s ZA M N Flashing lamp alone or simultane ously with an other lamp NI on ea x N Flashing lamp alternate with another lamp INSTRUCTIONS FOR USE 2 INSTRUCTIONS FOR USE 2 4 Warnings Biasi UK Ltd support the Benchmark initiative The Benchmark Checklist is located at the back of this manual and should be completed by the Insta
40. ermostat 21 Flame detecting electrode 22 Transformer 23 Air manifold 24 C h pressure relief valve 23 TECHNICAL INFORMATION 25 Automatic air purger valve 26 Main circuit drain valve 27 Pump 28 Pump vent plug 29 Gas valve 30 D h w temperature probe NTC 31 Primary circuit flow switch 32 Condensate trap 33 D h w heat exchanger 34 Three way diverter valve 35 Fan 36 Spark generator 37 Ignition electrode 38 Burner 39 Flue temperature probe NTC 40 Safety thermal fuse 41 D h w flow switch 42 Gas valve inlet pressure test point 43 Gas valve outlet pressure test point 44 C h expansion tank 45 By pass valve 46 Domestic water circuit filter 47 D h w flow limiter 48 Flue outlet pipe 49 Air intake pipe 50 Flue exhaust sampling point 51 Air sampling point z o E lt x m l n 24 TECHNICAL INFORMATION 4 3 Hydraulic specifications The hydraulic specifications in Fig 4 3 and Fig 4 4 represent the pressure available head for the central heating system as a function of the flow rate The load loss due to the boiler has already been subtracted kPa bar 60 0 6 50 0 5 40 0 4 30 0 3 20 0 2 10 0 1 0 0 0 0 200 400 600 800 1000 1200 1400 l h Fig 4 3 model M110B 24SM kPa bar 60 0 6 50 0 5 40 0 4 30 0 3 20 0 2 10 0 1 0 0 0 0 200 400 600 800 1000 1200 1400 V h
41. es in the sections Technical Data on pag 26 or pag 28 If it does not comply with the required pressure check the gas supply line and governor for faults and or correct adjust ment Where the boiler is connected to a gas supply which has a zero set governor then itis necessary under the Gas Safety Installation and Use Regulations 26 9 to perform a combustion analysis test for CO CO The limits for the boiler is given in section 4 3 and 4 4 Technical data CO contents Other flue gas fig ures and complete the Certificate of Ex emption section of the Benchmark COMMISSIONING Switch off the boiler close the gas inlet valve and close the water tap Disconnect the pressure gauge and close the Inlet Pressure Test Point 42 Fig 7 7 Important after the checks all of the test points must be sealed 7 9 Maximum output in c h mode The maximum useful output in c h mode of model can be varied and on model M110B 32SM is factory set to 24 kW To change the maximum useful output value in c h mode refer to the electronic control ignition pcb section of the service manual 7 10 External temperature probe setting optional The external temperature probe if fitted al lows to adjust automatically the temperature of the c h flow with reference to the external temperature The curves given in the chart of Fig 7 9 rep resent the c h flow temperature setting as a function of the external temperature meas ure
42. esets to its normal operation after 10 minutes H 7 6 Calibrate the gas valve according to the instructions given in the Service manual section Gas valve Adjustment To adjust if necessary the maximun use ful central heating output required see section Maximum output in c h mode to page 49 Stick on the inside of the left hand side pan el adjacent to the data badge the self adhe sive label included with the conversion kit indicating the type of gas and the gas pres sures to which the appliance has been set Replace the adjustment protection cap Replace the front panels of the case MAINTENANCE 9 MAINTENANCE 9 1 Warnings The procedures detailed in this chapter must be carried out only by a profes sionally qualified person Thus you are advised to contact an Authorised Service Agent For Ireland IE the servicing work must be carried out by a competent Person For efficient and continuous operation of the boiler you are advised to have at least once a year maintenance and cleaning done by an Approved Service Engineer Isolate the appliance from the electricity supply by turning off the fused spur isola tion switch adjacent to the appliance and turn off the gas cock before carrying out any procedures whatsoever for cleaning maintenance opening or dismantling boiler panels The Engineer should complete the Service Interval Record at the back of the manual 9 2 Dismantli
43. g i Q esocdooome N 0000000 c90 00000 A OK TAIM F D E C Fig 2 20 Display and control panel Mode selector switch Reset button OK button Increase setting button Decrease setting button On off button Day selection buttons Day display Time display ON OFF display cC c r0ommoou Setting the current time and weekday Note with a new unit or when the reset but ton B has been pressed the first day indica tor H on the left and the time display are flashing Press repeatedly the button A until the dis play shows the symbol Press the buttons D or E until the current time appears in the display I Press the day selection button G corre sponding to the current day considering that button 1 Monday button 2 Tuesday and so on The clock starts by pressing the button A to show the symbol AUTO Setting example shown in Fig 2 21 INSTRUCTIONS FOR USE Current time 16 30 day Thursday n An e M 5 3 LI PUR 2 2 0 9 D 0000000 Fig 2 21 Setting the switching time and day or days 28 memory locations are available corre sponding to 14 on off sequences Press repeatedly the button A until the dis play shows the symbol C1 The symbols shown in Fig 2 22 appears in the display LA ol ON a Fig 2 22 Press the buttons D or E to set the desired ON time Press the buttons G to set the desired day or days of operation Press t
44. he OK button C to confirm the setting and to continue programming the OFF time Set the OFF time as explained above for the ON setting and confirm by pressing the OK button C Proceed in the same way for other settings Setting example shown in Fig 2 23 L ON time 7 45 day Monday to Friday M OFF time 10 30 day Monday to Friday TIC 7 nan t oe ILI 3L j 00000 O00000 L M Fig 2 23 Activating the timed settings The current time and day appears in the display The ON OFF display J indicates the current state of operation according to the settings E A Ir Ws OL A 0000000 00000000Q Fig 2 24 Note when the display shows the symbol AUTO and the boiler is switched off at the fused spur isolation switch the display J in dicates only the OFF state The other indi cations are blanked Reading the timed settings Press repeatedly the button A until the dis play shows the symbol C1 Fig 2 22 The symbols shown in Fig 2 22 appears in the display Press the OK button C Each time the but ton is pressed the display shows the details of the next setting The day display H gives a flashing indica tion of the active day or group of days Changing or deleting the timed settings Press repeatedly the button A until the dis play shows the symbol C1 Fig 2 22 The symbols shown in Fig 2 22 appears in the display Press the OK button C until the display shows the
45. ill not present high risk follow good hygiene practices wash hands before touching eyes consuming food drinking or using the toilet First aid Medical attention must be sought following eye contact or prolonged reddening of the skin Thermostat Temperature gauge Description Sealed phial and capillary containing liquid Known hazards irritating to skin eyes and throat Vapour is harmful Inflammable do not extinguish with water Precautions Do not incinerate Avoid contact with broken leaking phials Do not purposely puncture First aid medical attention must be sought following eyes skin contact wash with clean water Sharp Edges Caution should be taken when handling the boiler to avoid sharp edges on the boiler Boiler installation and commissioning tips 4 The installation must be carried out by a qualified Gas Safety Registered Engineer who will be responsible for observing the current Regulations and the completion of the Benchmark Gas Boiler System Commissioning Checklist located at the back of this User manual o Z z a E WARNING 4 4 Installing the boiler Do not forget to remove the transit caps and plugs from the boiler connections these are fitted to every boiler Keep the boiler clear of dust during installation and in particular do not allow any dust or debris to enter the top of the boiler where the flue connection is made It is recommended that you put a dust sheet over the top
46. ination Boiler Heating Zone Valves Fitted Not Required Hot Water Zone Valves Fitted Not Required Thermostatic Radiator Valves Fitted Not Required Automatic Bypass to System Fitted Not Required Boiler Interlock Provided ALL SYSTEMS The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer s instructions Yes What system cleaner was used What inhibitor was used Quantity litres CENTRAL HEATING MODE Measure and Record Gas Rate m hr OR ft hr Burner Operating Pressure if applicable mbar OR Gas Inlet Pressure mbar Central Heating Flow Temperature C Central Heating Return Temperature C COMBINATION BOILERS ONLY Is the installation in a hard water area above 200ppm Yes No If yes and if required by the manufacturer has a water scale reducer been fitted Yes No What type of scale reducer has been fitted DOMESTIC HOT WATER MODE Measure and Record Gas Rate m hr__OR ft hr Burner Operating Pressure at maximum rate mbar OR ___ Gas Inlet Pressure at maximum rate mbar Cold Water Inlet Temperature C Hot water has been checked at all outlets Yes Temperature C Water Flow Rate limin CONDENSING BOILERS ONLY The condensate drain has been installed in acc
47. ion for the bracket and boiler Securely mount the bracket to the wall using appropriate fixings suitable for the type of wall construction and capable of supporting the total wet load Refer to the weight given in the technical data tables specific for each model 6 4 Overall dimensions The boiler E d the p dimensions C Pm 245 803 cC r rommocoou p 217 i2 Pino E DA Boiler front z o lt x m l E 7 Air intake flue outlet pipe co axial Flue outlet pipe 80 mm twin kit Air intake pipe 80 mm twin kit Electric connections area C h flow D h w outlet Gas D c w inlet C h return Condensate drain connection area 37 z o z lt x m l E N INSTALLATION 6 5 Joints Pipe sizes o d 22 g 15 15 15 25 plastic Functions Gas c h return c h flow D c w inlet D h w outlet Pressure relief valve Condensate drain sizes in mm o d 6 6 Mounting the boiler Take the protective caps off the boiler pipework Thoroughly clean the connections Mount the boiler on its bracket Fix the c h valves L and gas cock K 24 to the boiler using the 77 gaskets Fig 6 3 Fix the 22 mm pipes N c h circuit to the c h valves L and the 22 mm pipe M gas to the cock K using the gaskets Fig 6 3 Repeat the abo
48. ipe and traps for cleanness In this case and in case of persist Q ent lock out call a competent and responsible Service Engineer If noises due to air bubbles are heard during operation You should check that the pressure on the temperature and pressure gauge Fig 2 2 on page 10 is not below the correct setting If required top up the system correctly as described in the section Refilling proce dure to page 10 Bleed any air present in the radiators if nec essary If the pressure on the temperature and pressure gauge 4on page 8 has gone down It is necessary to top up the appliance with water again so as to raise the pressure to an adequate level as described in the sec tion Refilling procedure to page 10 If top ping up with water has to be done very fre quently have the system checked for leaks If water comes out of the pressure relief valve Check on the temperature and pressure gauge 4on page 8 that the pressure in the central heating circuit is not close to 3 bars In this case temperature rise in the circuit can cause the pressure relief valve to open So that this does not happen and to de crease the pressure to a normal value it is advisable to vent some of the water in the appliance through the bleed valves present in the radiators If in time a reduction in domestic hot water supply is observed The likely causes may be impurities caught in the domestic hot water flow switch fi
49. ir from the central heating system general check of the appliance s operation 3 5 External cleaning Before carrying out any clean Oo ing disconnect the appliance from the electrical mains using the fused spur isolation switch fitted adjacent to the appliance To clean the external panels use a cloth soaked in soapy water Do not use solvents abrasive powders or sponges Do not carry out cleaning of the appliance and or its parts with readily flammable sub 19 USEFUL ADVICE stances for example petrol alcohols naph tha etc 3 6 Operational faults If the lock out signal lamp comes on This indicates that the safety lock out 6 Fig 3 2 has stopped the boiler To re start the boiler it is necessary to press the boiler reset button 7 Fig 3 2 Lit v 76 69 C amp Fig 3 2 For the first lighting up and following main tenance procedures for the gas supply it may be necessary to repeat the resetting operation several times so as to remove the air present in the pipe work After five consecutive resetting attempts the reset button is inhibited To restore its func tion it is necessary to switch the boiler off and on from the electrical mains using the fused spur isolation switch fitted adjacent to the appliance Safety lock out may occur even in case of a blockage of the condensate drainage e g plugged drain pipe It is advisable to check the condensate drainage p
50. length 1 m This kit is normally supplied with the boil er and can be fitted to allow discharge to the rear or either side of the boiler via the flanged boiler adapter elbow Minimum length required is 0 3 m Maximum equiva lent length of 10 metres can be achieved utilising extensions This flue system can only be used to discharge horizontally it is not designed to enable termination in the vertical plane Vertical kit with 90 elbow Fi Co axial 60 100 mm Supplied with a straight flanged adapter a co axial elbow and a co axial pipe with ter minal this kit allows for a vertical rise of 0 5 m from the boiler In all circumstances the flue terminal must discharge horizontally and the equivalent flue length must not ex ceed 10 metres 6 5B Elbows 45 amp 90 Fig 6 5 C Coaxial 60 100 mm Elbow kits enable the standard flue kits to be offset to overcome obstructions or ensure the correct clearances for the flue terminal Each elbow used in addition to the standard flanged elbow reduces the overall accept able length of the flue system as follows For the elbow of 45 loss 0 5 m For the elbow of 90 loss 1m Twin pipe kits 80 mm Fig 6 6 Fig 6 7 Fig 6 6 Various twin split pipes kits and optional accessories elbows are available to as sist in the termination of the flue where the boiler is installed in a location remote to an outside wall These kits allow for separation of the air supply pipe from
51. lling Commissioning Engineer and handed over to the User for future reference by other visiting Engineers Also included is the Service Interval Record card that should be completed by the Service Engineer following the annual service maintenance of the boiler and system All Gas Safe Registered Installers carry a Gas Safe ID card and have a registration number Both should be recorded in your Benchmark Checklist You can check your Installer is registered by calling Gas Safe direct on 0800 408 5500 or go on line at www GasSafeRegister co uk In order to guarantee safety and correct op eration it is essential that all the tests are carried out by a competent and responsible service engineer before lighting up the boiler The tests are described in the installation instructions in section 7 commissioning Ensure that the c h circuit is regularly filled with water even if the boiler is only used for d h w supply checking that the pressure indicated on pressure gauge 4 is not lower than that shown in Fig 2 2 If the pressure reading on the pressure gauge is below that shown in Fig 2 2 then the system will require topping up A filling loop is normally provided by the Installer for this purpose If you are in any doubt regarding this procedure you are advised to contact your Installer or an Approved Engineer This appliance is provided with a built in anti freeze system that operates the boiler when the temperature is below 5
52. llows the combustion air to be sucked up and expel the burnt gases di rectly to the outside through a telescopic co axial flue 450 950 mm 1 U Fig 6 8 Type C53 90 0 85 m gs 60mm 45 0 65 m id 2 60 100 mm Fig 6 9 In the last section the fumes are expelled through a vertical section INSTALLATION Extensions and elbows can be added to ex tend the kit s length Maximum equivalent length a b Fig 6 9 of 15 metres can be achieved utilising ex tensions Each additional elbow reduces the overall acceptable length of the flue system as fol lows For the elbow of 45 60 100 mm loss 0 5 m For the elbow of 90 60 100 mm loss 1m For the elbow of 45 60 mm loss 0 65 m For the elbow of 90 60 mm loss 0 85 m 6 9 GasSaver optional The majority of boilers lose a notable amount of heat through the flue GasSav er recuperates this heat from the flue and re uses it for generating hot water for do mestic use MEL 5 t Hot Flue Gases Boiler Central Heating C H return Domestic Hot Water A Blend Valve Domestic Cold Water Fig 6 10 GasSaver is installed on the outlet of the boiler flue exhaust The heat recuperated from the GasSaver is transferred to the cold water for domestic use before entering the boiler This raises the water temperature and at the same time reduces the quan
53. lter or limescale deposited in the domestic hot wa ter heat exchanger It is advisable to have the appliance cleaned out by an Authorised Service Centre Engineer 20 USEFUL ADVICE If water should occasionally leak from the boiler Shut off the valves positioned under the boiler Fig 2 12 on page 13 and call an Au thorised Service Centre Engineer In this case or in case of prob o lems other than those men tioned here switch off the boil er as described in section Extinguishing to page 13 and call a competent and responsi ble Service Engineer 221 5 TECHNICAL INFORMATION 4 TECHNICAL INFORMATION 4 1 Overview 17 39 40 z Oo ul q E l amp 0 z Fig 4 1 Epe TECHNICAL INFORMATION 4 2 Main diagram 42 15 13 Fig 4 2 11 C h return valve 12 D c w inlet valve 13 Gas inlet valve 14 D h w outlet pipe 15 Condensate drain pipe 16 C h flow valve 17 Condensing heat exchanger z o z Ae c HI E 24 34 41 EY z 45 x30 267 1 3j X X X 11 16 12 14 18 C h temperature probe NTC 19 Condensing heat exchanger 20 Safety th
54. m Expansion vessel The appliance has an integral sealed expan sion vessel to accommodate the increase of water volume when the system is heated Re fer to Fig 4 5 on page 25 for its technical data If the heating circuit has an unusually high wa ter content calculate the total expansion and add an additional sealed expansion vessel with adequate capacity Mains water feed central heating There must be no direct connection to the mains water supply even through a non return valve without the approval of the Local Water Authority Mains water feed hot water supply The domestic section of the boiler is designed to withstand an internal domestic water pres sure of 10 bar Where it is likely that the mains domestic water pressure may exceed 5 bar it is possible due to internal water hammer effects that the pressure within the domestic system can increase to a level in excess of the 10 bar limit In these circumstances it is therefore recom mended that a 3 bar pressure reducing valve be fitted to the incoming mains water supply and a mini expansion vessel installed on the domestic circuit These devices will protect the boiler and the domestic system from damage due to exces sive domestic water pressure Filling A method for initially filling the system and replacing water lost during servicing must be provided and it must comply with local water authority regulations The correct method is shown in Fig 5 4
55. n Expansion vessel to page 25 If the pressure is lower take steps to correct the pressure level 9 8 Cleaning the burner The burner 380n page 24 does not need special maintenance but it is sufficient to dust it with a bristle paintbrush To reach the burner do the operations de scribed in the section Cleaning the con densing heat exchanger and burner to page 56 9 9 Checking the flue Have the integrity of the flue outlet pipe 480n page 24 air intake pipe 490n page 24 checked periodically at least once a year For all the above maintenance operations it is advisable to call an approved Service Engineer 9 10 Drain pipe inspection Check the soundness and integrity of the condensate drain pipe 57 Ww 9 z lt z Ww z X zm MAINTENANCE MAINTENANCE Verify the cleaness and correct filling of the condensate traps 9 11 Visual inspection of appliance Visually inspect all water joints seals and connections for any evidence of leakage and retighten grease or replace them as necessary 9 12 Gas pressures and soundness Check appliance for gas soundness Re check operational pressures as described in section Checking the gas supply pres sure to page 48 9 13 Water inhibitor concentration Where chemical products are used the level of water treatment should be checked on an annual basis and re treated after full or par tial drain down A conductivitymeter can be used to check th
56. n be set within the follow ing ranges 1 to 23 hours with steps of 1 hour 18 1 to 27 days with steps of 1 day Press the button A until the display shows the symbol AUTO The ON OFF display J flashes indicating that the current state of operation has been forced To delete the timed delay setting press repeatedly the button A until the display shows the symbol TIMER press the button D or E until the symbols shown in Fig 2 26 appears in the display and then press the button A until the display shows the symbol AUTO Setting example shown in Fig 2 26 forced ON state for 4 hours TIMER Fig 2 26 Resetting To completely reset the timer press the re set button with a pointed object pencil CAUTION pushing the reset button will completely erase the settings as well as all the data including the current time and day USEFUL ADVICE 3 USEFUL ADVICE 3 4 Central Heating For reasonably economical service install a room thermostat Never shut off the radia tor in the area where the room thermostat is installed If a radiator or a convector does not heat up check that no air is present in it and that its valve is open If the ambient temperature is too high do not alter the radiator valves Reduce the central heating temperature in stead by means of the room thermostat and the function selector 8 in Fig 3 1 Fig 3 1 3 2 Frost protection This appliance is pr
57. n fittings Where possible pipes should have a gradient to ensure air is carried naturally to air release points and water flows naturally to drain taps The appliance has a built in automatic air re lease valve it should be ensured as far as possible that the appliance heat exchanger is not a natural collecting point for air Except where providing useful heat pipes should be insulated to prevent heat loss and to avoid freezing Particular attention should be paid to pipes passing through ventilated spaces in roofs and under floors By pass The appliance includes an automatic by pass valve which protects the main heat exchanger in case of reduced or interrupted water circu lation through the heating system due to the closing of thermostatic valves or cock type valves within the system The by pass is calibrated to assure a mini mum flow of 200 300 Its hr through the main heat exchanger If you are installing a system that includes thermostatic radiator valves TRV and or small bore 8 10 mm it may be necessary to fit an external by pass to facilitate correct op eration of the boiler The fitting of an external bypass helps to pre vent and limit system noise 33 z o lt x m l E 7 z o lt x 7 GENERAL REQUIREMENTS Air release points These must be fitted at all high points where air will natural collect and must be sited to fa cilitate complete filling of the syste
58. n freezing conditions may occur Fill in the details required on the Boiler Guarantee Certificate and hand to the User advising them to return the correct section for boiler Guarantee registration Finally advise the User that for continued safe and efficient operation the appliance must be serviced by a competent person at least once a year 51 z o lt x m 7 MAINTENANCE GAS CONVERSION 8 GAS CONVERSION 8 1 Warnings The commissioning of this boiler and system must only be undertaken by a professionally qualified person in ac cordance with the requirements of the Gas Safe Installation and Use Regula tions and be approved by Gas Safe Components used to adapt it to the type of gas available must be genuine parts only Factory setting Natural gas 8 2 Procedures Check that the gas cock 13 in A Fig 8 1 fitted under the boiler is turned off and the appliance is switched off at the mains isolat ing spur 13 Fig 8 1 Closed position Remove the front panel of the case see the section Dismantling the external pan els to page 55 and lower the control pan el see section Electrical connections to page 42 Take off the lid of the sealed chamber Unscrew the connector A Fig 8 2 re move the fixing fork B and remove the pipe 52 C Fig 8 3 Carry out the conversion for the type of gas replacing the restrictors gas correctly Fig
59. ng the external panels Front panel Loosen the three screws A Fig 9 1 Lift and remove the panel B Flue exhaust Sampling points Fig 9 1 Side panels Loosen the screws C Bring the bottom of the panels away from the boiler and lift them freeing them from the top hooks Fig 9 2 Fig 9 2 9 3 Emptying the d h w system Turn off the d c w inlet isolating valve 12 in Fig 9 3 and turn on the hot water taps and any drain cocks Closed position rH S 9 4 Emptying the c h system e Close the c h isolating valves 11 and 16 in Fig 9 3 55 LLI 5 z lt z Lu zZ lt x MAINTENANCE MAINTENANCE Open the central heating drain cock 26 in Fig 9 4 Ld Fig 9 4 Asmall quantity of water will remain in the d h w heat exchanger after draining If the boiler is being drained to prevent freez ing the d h w heat exchanger must be removed and inverted to drain fully or an antifreeze solution added 9 5 Combustion analysis check It is recommended that a combustion analy sis check is made Remove the plug as in dicated in Fig 9 1 and carry out combustion analysis check and adjustment if necessary as described in the section Gas valve Ad justment of the Service manual Reference figures are given in the sections Technical Data on pag 26 or pag 28 of this manual 9 6 Cleaning the condensing heat exchanger and bu
60. nly the OFF state The other indications are blanked Reading the timed settings Set the mode selector switch A to the C1 position The symbols shown in Fig 2 15 appears in the display Press the enter button C Each time the button is pressed the display shows the de tails of the next setting Changing or deleting the timed settings Set the mode selector switch A to the C1 position The symbols shown in Fig 2 15 appears in the display Press the enter button C until the display shows the setting to be modified or deleted The day display H gives a flashing indica tion of the active day or group of days Press the button or the buttons G corre sponding to the day or days for which it is intended to apply the modification The cor responding day display stops flashing and a new switching time can be set or deleted The time setting can be modified now by pressing button D or E and the operation can be switched on or off by pressing the button F To delete a time set press the button D or E until the symbols shown in Fig 2 15 ap pears in the time display I The new settings are memorized by moving the switch A to a different position Manual operation The operation of the time switch can be forced on or off constantly or for a timed period To force constantly on or off the timer op eration set the mode selector switch A to the TIMER position The symbols shown in Fig 2 18 appears on the display O 0
61. of mechanical or generic origin e g Injuries or bruises DANGER The indications marked with this symbol must be observed to pre vent accidents of electric origin electrocution DANGER The indications marked with this symbol must be observed to pre vent the risk of fire or explosion DANGER The indications marked with this symbol must be observed to pre vent accidents of heat origin burns ATTENTION The indications marked with this symbol must be observed to prevent malfunctioning and or damage to materials of the appliance or other objects ATTENTION The indications marked with this symbol is important informa tion that must be carefully read 2 Q Remember that Q 4 The manual must be read thoroughly so that you will be able to use the boiler in a safe and sensible way must be carefully kept It may be necessary for reference in the future 4 The lighting up must be carried out by competent and responsible engineer 4 The manufacturer disclaim all liability for any translations of the present manual from which incorrect inter pretation may occur cannot be held responsible for non observance of instructions contained in this manual or for the consequences of any procedure not specifically described Please ensure that the installer has fully completed the Benchmark Checklist on the inside back pages of the installation instructions supplied with the product and that you have signed it to say that you h
62. of the boiler until you are ready to make the flue connection Because every boiler is fired and tested live at the factory a small amount of water re mains within the boiler It is possible for this water to initially cause the pump to seize It is therefore recommended that the pump rotor be manually turned to free its rotation before turning the boiler on Remember to release the auto air purge before filling the boiler See the instructions to identify the location of this device This boiler allows to control the flow temperature of the central heating system at very low levels In case of underfloor heating system a temperature limiting device e g a safety thermostat is recommended to stop the boiler in case that the water temperature exceeds the design temperature You are strongly advised to the British Standard BS 7593 2006 Code of practice flush out the system both cold and hot in order to remove system and installation debris It is also sensible to initially fire and commission the boiler before connecting any external controls such as a room thermostat By following this procedure if you have a subsequent problem this method if you have a subsequent problem following the addition of an exter nal control you can eliminate the boiler from your fault analysis If the boiler is fitted with a digital programmer when setting the times for automatic opera tion remember that for every ON time there must be an OFF time to follow and
63. ordance with the manufacturer s instructions and or BS5546 BS6798 Yes If the condensate pipe terminates externally has the pipe diameter been increased and weatherproof insulation fitted Yes ALL INSTALLATIONS If required by the manufacturer record the following CO 96 OR CO ppm OR CO CO Ratio The heating and hot water system complies with the appropriate Building Regulations Yes The boiler and associated products have been installed and commissioned in accordance with the manufacturer s instructions Yes The operation of the boiler and system controls have been demonstrated to and understood by the customer Yes The manufacturer s literature including Benchmark Checklist and Service Record has been explained and left with the customer Yes Commissioning Engineer s Signature Customer s Signature To confirm satisfactory demonstration and receipt of manufacturer s literature A l installations in England and Wales must be notified to Local Authority Building Control LABC either directly or through a Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer anion comin AND HOT WATER Heating and Hotwater Industry Council HHIC www centralheating co uk Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Inter
64. ords in place with the flexible cord clamps To the external To the fused control device spur isolation a Fig 6 18 It is not necessary to cut away the plas tic service panel to route the electrical cords 43 z o lt x m l E 7 INSTALLATION 6 11 External frost protection Connect the frost thermostat between ter minals 1 and 2 as shown in Fig 6 19 or Fig 6 20 Do not connect live wires to terminals to which the room thermostat must be connected Room thermostat 230V rating Frost Thermostat 230V rating 3 2 1 Power supply S S erminal block External controls OO O terminal block D 9 9 zZ 9 Fig 6 19 lt x j R lt Frost thermostat thermostat T with anticipating 230V rating resistor cS 230V rating e L N CC OQ K2 3 2 1 a supply terminal block OLOLA External controls e terminal block D K2 Fig 6 20 44 COMMISSIONING 7 COMMISSIONING 7 1 Warnings The commissioning of this boiler and system must only be undertaken by a professionally qualified person in ac cordance with the requirements of the Gas Safe Installation and Use Regula tions and be approved by Gas Safe Ensure
65. ovided with a built in anti freeze system that operates the boiler when the temperature is below 5 C Therefore when the boiler is not lit and used in cold weather with consequent risk of freezing do not switch off the boiler at the fused spur isolation switch or close the gas inlet cock 3 3 Condensate drain The condensate drain must not be modi fied or blocked Blockage of the condensate drain caused by debris or freezing can cause automatic shutdown of the boiler If freezing is suspected and the pipe run is accessible an attempt may be made to free the obstruction by pouring hot water over the exposed pipe an cleaning any blockage from the end of the pipe If this fails to remedy the problem the assist ance of a Gas Safe registered installer or in IE a competent person should be sought 3 4 Periodic maintenance For efficient and continuous operation of the boiler it is advisable to arrange mainte nance and cleaning by an Authorised Serv ice Centre Engineer at least once a year During the service the most important com ponents of the boiler will be inspected and cleaned This service can be part of a maintenance contract In particular you are advised to have the following checks carried out domestic hot water heat exchanger condensing heat exchanger burner exhaust fume duct and flue pressurisation of the expansion tank filling up of the central heating circuit bleeding of a
66. panel 4 C h circuit temperature and pressure gauge 5 Time switch c h control Lock out signal lamp 7 Lockout reset button o 8 Function selector and c h temp control knob 9 D h w temperature control knob 10 Appliance operation lights 1 3 Isolation valves Q Provide for the installation of a stop valve on the D c w inlet pipe 11 ail 46 14 13 12 15 Fig 1 2 11 C h return valve 12 D c w inlet valve 13 Gas inlet valve 14 D h w outlet pipe 15 Condensate drain pipe 16 C h flow valve 4 8 s 55 Jg QOO Q o pl d T 10 9 5 4 Fig 1 3 zB APPLIANCE DESCRIPTION 1 4 Technical data For detailed technical data see sections Technical Data on page 26 or page 28 1 5 Operation lights Three lights 10 in Fig 1 3 give detailed in dication regarding the operation of the boiler The following table gives the relationship between each of the possible light combina tions and their meaning LUDMI A short pulse every 4 sec onds stand by condition E Function selector in position Anti freeze system active 1 second pulse every 2 seconds normally op erating boiler Function selector in oh or po sition ma 5 E l 5 OC IO C h operation JIN TIN le aly ZO ZO D h w operation PES Frost protect operation z ZTA N vu D h w operation O ZQX Excessive temp
67. r 5 The appliance must discharge combustion products directly outside or into a suitable ex haust duct designed for this purpose Combustion products must be discharged using origi nal flue kits only since they are integral parts of the boiler For Propane the appliance must also con form with the requirements of the distribu tors and comply with current Regulations and laws in force The safety relief valve and the condensate drain must be connected to a suitable drain or discharge in a safe manner The electrical wiring must conform with cur rent Regulations in particular The Aoiler must be earthed using the cor rect bonding clamp a fused spur isolation switch with a gap of at least 3 mm between the contacts must be installed near to the boiler Refer to section Electrical connections to page 42 in this chapter for the electrical connections In no circumstances will the manufac turer be held responsible if the warnings and instructions contained in this manu al have not been complied with 6 2 The boiler must be fixed to a strong wall The dimensions for the exhaust fume duct detailed in section Choice of flue to page 38 and the correct procedures for installing the duct depicted in the instruc tion leaflet included with the flue kit must be complied with during installation To allow maintenance procedures it is necessary to leave the minimum gaps in dicated in Fig 6 1
68. re that the pressure gauge is set at the required pressure 2 3 Ignition Check that the valves located in the lower part of the boiler are open Fig 2 3 Open A n Fig 2 3 Turn on the electricity supply to the boil er switching on the fused spur isolation Switch The appliance operation light 10 Fig 2 4 will flash every 4 seconds stand by condition If the boiler is to be used for c h and d h w position the function selector 8 as in Fig 2 4 The appliance operation light 10 will flash every 2 seconds operating boiler f d h w supply only is required position the function selector 8 as in Fig 2 5 The appliance operation light 10 will flash eve ry 2 seconds operating boiler 2 4 C h circuit temperature The output temperature of c h water is ad justable from a minimum of about 40 C to a maximum of about 85 C Fig 2 6 by turn ing the knob 8 Adjustment of the boiler temperature alters the gas flow at the burner according to the thermal demand in the system So it is usual to see the burner lit at the minimum level for more or less long periods The following instructions indicate how to set the output temperature of the c h water depending on the outside temperature f INSTRUCTIONS FOR USE Minimum Maximum amp amp 9 8 Fig 2 6 Adjustment of temperature WITHOUT the external temperature probe option al fitte
69. rner To remove the burner fan group D Fig 9 5 Take off the front and side panels of the case Remove the sealed chamber lid Disconnect the connectors of the ignition electrodes E and detection electrode F Fig 9 5 56 Disconnect the rubber pipe Fig 9 6 Unscrew the gas connector G Fig 9 5 Remove the fixing fork J and remove the gas pipe K Fig 9 6 Fig 9 6 Disconnect the connector of the fan L by pressing the plastic hook M placed on the rear side of the connector Fig 9 7 MAINTENANCE Remove the nuts H Fig 9 5 and the burner fan group D If you notice dirt on the coil of the condens ing heat exchanger 190n page 23 brush out it with a bristle paintbrush and remove the dust with a hoover Fig 9 8 Caution After any periodical servicing or disturbance the combustion chamber silicon seal N Fig 9 8 must be fully inspected and replaced at the discretion of the service engineer After any disturbance to the chamber door seal the appliance must undergo a full ana lytical combustion performance check Reassemble the parts carrying out the re moval operations in reverse order 9 7 Checking the pressurisation in the expansion vessel Empty the central heating system as de Scribed in section Emptying the c h sys tem to page 55 and check that the expan Sion vessel pressure is not less than 1 bar See also sectio
70. t of Water in d h w c h Systems When the installation and second fill ing are completed turn on the c h sys tem and run it until the temperature has reached the boiler operating tempera ture The system must then be immedi ately flushed through This procedure must be repeated twice more During this operation we highly recom mend the use of a c h flushing detergent in the quantities as specified by the ap propriate manufacturer whose function it is to dissolve any foreign matter which may be in the system INHIBITION Primary Heating Circuit On the final refilling of the heating system it is important to ensure the system water is treated with a suitable scale and corrosion inhibitor in accordance with the manufactur ers instructions 7 6 Condensate pipe and traps The full length of the condensate pipe should be check for leaks COMMISSIONING Before to run the boiler ensure that the built in condensate trap and any other trap in the drain system is correctly filled with water Fill the built in condensate trap Q by removing the flue elbow and pouring a cupful of water into the flue outlet Fig 7 4 Fig 7 4 An alternative to avoid the removal of the flue elbow pour the water through the flue sampling point Fig 7 5 Sampling points Flue exhaust Fig 7 5 7 7 Lighting the boiler Some products incorporate an anti cycling time delay It is normal when first switching the
71. that on every occasion you enter a time you must also indicate which days that you want the boiler to follow the timed settings Some products incorporate an anti cycling time delay It is normal when first switching the boiler on for the boiler to operate on heating for a few seconds then switch off After 3 4 minutes has elapsed the boiler will then re ignite and operate perfectly normally The igni tion delay cycle does not prevent normal operation of the boiler to provide d h w If you are in any doubts as to the installation or operation of the boiler please read the instruction manuals thoroughly and then if necessary contact Biasi UK for advice and as sistance Guarantee conditions The guarantee registration form must be returned within 30 of purchase failure to comply will invalidate the guarantee Please remember that if you are in any doubt about the installation of this product you can contact our Technical Help line on tel 01922 714 600 TABLE OF CONTENTS 1 APPLIANCE DESCRIPTION 8 6 4 Overall dimensions 005 37 Wid JOVervioW cuu ceeds ae DRIED d Rb ERROR 8 6 5 doifilS 25d meon ib ptem oie Poser 38 12 Control panel cesso cese eee meh 8 6 6 Mounting the boiler llle 38 1 3 Isolation valves l sess 8 6 7 Fitting the flue system 0 38 1 4 Technical d ta 5 5 ise nene eas 9 6 8 Choice of flUe 20 cece eee 38 1 5 Operation lights
72. that the Benchmark Checklist is satisfactorily completed during the com missioning process The Checklist is located at the end of this manual This manual should be handed to the User following completion of the installation and commissioning process Failure to comply with these requirements may in validate the manufacturers guarantee For Ireland IE it is necessary to com plete a Declaration of Conformity to indicate compliance to I S 813 2002 7 2 Electrical installation Preliminary electrical system checks to en sure electrical safety shall be carried out by a competent person i e polarity earth con tinuity resistance to earth and short circuit If a fault has occurred on the appliance the fault finding procedure should be followed as specified in the service manual 7 3 Gas supply installation Inspect the entire installation including the gas meter test for tightness and purge all as described in BS 6891 For Ireland IE refer to 1 S 813 2002 Open the gas cock 13 Fig 7 1 on the ap pliance and check the gas connector on the appliance for leaks UB Open position e Fig 7 1 7 4 Filling the d h w system e Close all hot water draw off taps Open the cold water inlet valve 12 Fig 7 1 Slowly open each draw off tap and close it only when clear water free of bubbles flows out 7 5 Initial filling of the system Open the c h flow and return valves Remove the front an
73. tity of energy necessary to the boiler for heating it GasSaver Fig 6 11 The addition of the GasSaver on the air flue circuit reduces the overall acceptable length of the flue system of 3 meters 44 INSTALLATION z o lt x m a E 7 INSTALLATION 6 10 Electrical connections Connection to the electricity supply Remove the front panel of the case see the section Dismantling the external pan els to page 55 Remove the screws S and T Fig 6 12 Loosen the screws U Fig 6 12 Remove the side panels or move the low er part of the side panels as indicated in Fig 6 13 and pull the control panel When completely pulled out the panel can rotate 45 downwards to facilitate the operations on the internal parts Loosen the screws V and remove the ser vice panel Fig 6 14 For the electrical connection to the boiler use electric wires which conform to the cur rent regulations with flexible cord each core having a cross section area not less than 0 75 mm Connect the electrical supply flexible cord coming from the fused spur isolation Switch to the power supply terminal block of the boiler Fig 6 16 keeping the same connections for the live brown wire and the neutral blue wire External 3 A fuse or fused plug with same current rating is rec ommended Do not connect live wires to terminals to which the room thermostat must be connected
74. val Record is completed Service Provider Before completing the appropriate Service Record below please ensure you have carried out the service as described in the manufacturer s instructions Always use the manufacturer s specified spare part when replacing controls Service 1 Date Engineer Name Service 2 Date Engineer Name Company Name Company Name Telephone No Telephone No Gas Safe Register No Gas Safe Register No Comments Comments Signature Signature Service 3 Date Engineer Name Service 4 Date Engineer Name Company Name Company Name Telephone No Telephone No Gas Safe Register No Gas Safe Register No Comments Comments Signature Signature Service 5 Date Engineer Name Service 6 Date Engineer Name Company Name Company Name Telephone No Telephone No Gas Safe Register No Operative ID No Comments Comments Signature Signature Service 7 Date Engineer Name Service 8 Date Engineer Name Company Name Company Name Telephone No Telephone No Gas Safe Register No Gas Safe Register No Comments Comments Signature Signature Service 9 Date Engineer Name
75. ve procedure for the d c w inlet utilising the 72 cold water inlet valve O the 15 mm copper tail P with its con nection nut and two 72 gaskets Fix the 15 mm copper tail Q with the 72 connection nut and a 77 gasket Fig 6 3 Connect the pipe R Fig 6 4 from the pressure relief valve to the safety dis 38 charge pipework Fit the condensate drain 15 Fig 6 4 in the air brake connected to the drainage pipework See also section Condensate drain to page 32 Fig 6 4 6 7 Fitting the flue system Refer to the assembly instructions con tained within the chosen flue kit packaging for the correct assembly and installation In general it has to be taken in considera tion that the horizontal sections of the flue pipe must have an horizontal sloping not less than 1 5 deg 25 mm per metre to wards the boiler In the standard horizontal flue kit Fig 6 6 A the flue pipe is angled within the air duct therefore the air duct must be horizontally installed If one or more extensions have to be used they must be adequately supported so that there is no sag in the flue pipe and a mini mum fall of 1 5 deg 25 mm per metre over the whole length towards the boiler is en sured 6 8 Choice of flue The following flue kits are available for con necting to the boiler INSTALLATION Standard horizontal flue kit Fig 6 5 A Type C13 60 100 Co axial 60 100 mm nominal
76. w of gas to the burner in order to keep the tem perature of d h w delivered constant be 212 INSTRUCTIONS FOR USE tween the limits of maximum and minimum output Where the demand is at a low level or with the temperature set to the minimum it is normal to see a cycle of lighting and extin guishing of the burner when running Adjustment It is advisable to adjust the d h w tempera ture to a level commensurate with the de mand minimising the need to mix with cold water In this way the automatic control fa cilities will be fully exploited Where lime scale is present in the water supply hard water areas it is also advis able not to exceed the setting position of the d h w temperature control knob 9 as indi cated in Fig 2 10 This will help to minimise the incidences of scale deposits clogging the domestic hot water heat exchanger of the boiler Fig 2 10 In these cases however it is advisable to install a small water treatment device or sof tener With such a device you should avoid periodic de scaling Consequently the d h w heat exchanger will keep its performance consistent for a longer period of time with resulting gas savings If the demand for d h w is so great as to pre vent reaching a high enough temperature have the appropriate output limiting valve installed by your installer or an Authorised Service Engineer 2 6 Extinguishing To turn the boiler off set the function sel

User manual and Installation instructions

Contents

Download Pdf Manuals

Related Search

Related Contents