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User manual and Installation instructions

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1. Other faults O Q O Lack of power supply or faulty electronic control p c b O O O Meaning of symbols O Lamp OFF Lamp ON Flashing lamp alone or simultaneously zO with an other lamp Flashing lamp alternate with another Dd lamp Dres 2 Instructions for use Warnings Biasi UK Ltd support the Benchmark initiat ive The Benchmark Log Book is located at the back of this manual and should be com pleted by the Installing Commissioning En gineer and handed over to the User for fu ture reference by other visiting Engineers Also included is the Service Interval Record card that should be completed by the Ser vice Engineer following the annual service maintenance of the boiler and system All CORGI Registered Installers carry a CORGI ID card and have a registration number Both should be recorded in your Benchmark Log Book You can check your Installer is registered by calling CORGI di rect on 01256 372400 In order to guarantee safety and correct oper ation 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 in structions 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 indi cated on the temperature and pressure gauge 4 is not lower
2. 2 25 D h w temperature 6 1 1 2 2 6 Extinguishing 7 12 Control panel 2 27 Builtin time switch A 7 1 3 Isolation valves 2 2 8 Builtin time switch B 9 1 4 Technical data 2 1 5 Operation lights 3 3 JUsefuladvice 12 2 Instructions for use 4 341 Centralheating 12 2 1 Warnings 4 93 2 Frostprotection 12 2 2 Refilling procedure 4 3 3 Periodic maintenance 12 2 3 Ignition n 4 3 4 External cleaning 12 2 4 C h circuit temperature 5 3 5 Operational faults 12 4 Technical information 14 6 2 Precautions for installation 41 Overview 14 6 3 Installing the bracket z 4 2 Main diagram 15 64 Overall dimensions 4 3 Technical data 6 5 t Joints oos shu a p e etin E mod M110B 24SM 16 6 6 Mounting the boiler lt 4 4 Technical data 6 7 Fitting the flue system 3 mod M110B 325M 18 68 Choice offlue lt 4 5 Hydraulic specifications 20 6 9 Electrical connections 5 4 6 Expansion vessel 20 6 10 External frost protection z 5 G
3. The following table gives the relationship between each of the possible light combinations and their meaning during the normal operation of the boiler L DU 00 A short pulse every 4 seconds stand by condition 205 O O Function selector in O position Anti freeze system active 1 second pulse every 2 seconds normally operating boiler Function selector in or position SO O 202 Ch operation O QE D h w operation 20 20 O Frost protect operation a D h w operation O O 0 Excessive temperature on i 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 described in section 2 6 on page 7 and call a competent and re sponsible Service Engineer J e Lt AE Faulty c h temperature Q Mo lt probe NTC SL Faulty d h w temperature probe Faulty primary circuit no water or absence of flow Q O e vty TA Lack of burner ignition vty vty vty TA Safety thermostat lock out Faulty fan control system vty vty Flue temperature probe OX NTC lock out D Open flue temperature e OS O probe NTC m Faulty external temp O XX 20 probe if fitted Flame detection error vty vty TA vty
4. 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 operation press repeatedly the button A until the display shows the symbol TIMER The symbols shown in Fig 2 25 appears on the display h 0000000 0000000 Fig 2 25 The operation can be switched permanently on or off by pressing the button F and leaving the dis play shows the symbol TIMER To force a timed delay on or off operation press repeatedly the button A until the display 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 pres sing the button F The time delay can be set within the following ranges M ev 1 to 23 hours with steps of 1 hour 1 to 27 days with steps of 1 day Pressthe button A untilthe display shows the sym bol 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 appearsin the display andthen press the button A until the display shows the sym bol AUTO Setting example shown in Fig 2 26 forced ON state for 4 hours Lt I gam 0000000 0000000 Fig 2 26 M Resetting To completely reset the timer press the reset but ton with a
5. Wall hung fan flue room sealed high efficiency gas boiler User manual and Installation instructions RIVA ADVANCE HE Models M110B 24SM C M110B 32SM C recommended A BIASI A RIVA ADVANCE 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 Congratulations on your choice independent heating RIVA ADVANCE 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 Remember that The manual must be read thoroughly so that you will be able to use the boiler in a safe and sen sible way mustbe carefully kept It may be necess ary for reference in the future First lighting up must be carried out by competent and responsible engineer The manufacturer disclaim all liability for any translations of the present manual from which incorrect in terpretation may occur cannot be held responsible for non ob servance of instructions contained in this manual or for the consequences of any pro cedure not specifically described Using the boiler Before lighting the
6. 5 4 24 The Installer should ensure that leaks exist either inside the boiler or on the system as fre quent filling of the system could cause premature scaling of the heat exchanger EJ Domestic water The domestic water installation must be in accord ance with the relevant recommendations of BS 5546 Copper tubing to BS EN 1057 is recom mended for water carrying pipework and must be use for pipework carrying potable water For Ireland IE refer to 1 5 813 2002 En Water treatment Central heating circuit Where a new boiler is fitted to a new system with either plastic or copper pipes it is important the system is fully flushed on completion to ensure flux residues swarfs oils and other installation de bris is removed Where a new boiler is fitted to an existing system it is important the debris from the existing system is fully removed in order to ensure the efficiency of the new appliance is maintained Details on flushing procedure are given in the sec tion 7 4 of this manual Domestic hot water circuit scale protection In areas where the water is hard i e more than 200 ppm total hardness as defined by BS 7593 2006 Table 2 itis recommended that a proprietary Scale reducing device is fitted into the boiler cold supply within the requirements of the local water company EXE Electrical supply Warning this appliance must be earthed External wiring to the appliance must be carried out
7. F From vertical drain pipes and soil pipes 150 G From internal corners 450 H From external corners 300 l Above ground or balcony level 300 J From a surface facing a terminal 600 From a terminal facing a terminal 1 200 L From opening in the car port e g door window into dwelling NO M Vertically from a terminal in the same wall 1 500 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 Above the roof pitch with roof slope morethan 305 pnus as x ue 600 From Wall face cesses xem eR yn 600 Q From above or to side of an opening 300 Wherever practicable to do so the flue should be ex tended beyond the perimeter of the balcony Qonsideration should be given to adding protection against condensate to the adjacent structure Gas supply The Gas meter is connected to the service pipe by the local gas region or a local gas region contrac tor If the gas supply for the boiler serves other appliances ensure that an adequate supply is available both to the boiler and the other appliance when they are in use at the same time 22 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 accordance with BS 6891 and the
8. Fig 7 2 Fig 7 2 4 Liftthe capontheautomatic air purger valve 25 Fig 7 3 one full turn and leave open perma nently 33 z g j E 2 j E 4 Commissioning 5 Gradually open stopcock at the filling point connection to the c h system until water is heard to flow do not open fully 6 Close the condensing heat exchanger air purger valve 17 Fig 7 2 when water begins to flow out 7 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 8 Purge the air from the pump by unscrewing the pump plug 28 Fig 7 3 release the pump shaft by turning in the direction indicated by the arrow on the information plate 9 Replace the pump plug 10 Continue filling the system The actual reading should ideally be 1 3 bar and not less than 0 3 bar 11 Close all air release valves on the c h system 12 Inspect the boiler and the system for water soundness and remedy any leaks discovered 13 Cold flush the system to remove any loose par ticles and any system debris before starting the boiler for the first time The flushing procedure must be in line with BS7593 2006 Treatment of Water in d h w c h Systems When the installation and second filling are completed turn on the c h system and run it until the temperature has reached the boiler operating temperature The system must the
9. viced by a competent person at least once a year 8 Gas conversion 4 Unscrew the connector A Fig 8 2 remove the fixing fork B and remove the pipe C Fig 8 3 EM Warnings The commissioning of this boiler and sys tem must only be undertaken by a pro fessionally qualified person in accordance with the requirements of the Gas Safety In stallation and Use Regulations and be ap proved by C O R G I Components used to adaptitto the type of gas available must be genuine parts only Factory setting Natural gas FEN Procedures RA Fig 8 3 5 Carryoutthe conversion for the type of gas re placing the restrictors gas correctly Fig 8 4 o lt W lt 13 Closed position Fig 8 1 1 Check that the gas cock 13 in Fig 8 1 fitted under the boiler is turned off and the appliance is switched off at the mains isolating spur Fig 8 4 6 Re assemble the pipe gas the front panel of the combustion chamber and the lid of the Fig 8 2 sealed chamber 2 Remove the front panel of the case see sec tion 9 2 and lower the control panel see sec tion 6 9 3 Take off the lid of the sealed chamber After any service operation on the components of the gas circuit check all the connections for gas leaks 39 o z lt lt Gas conversion Gas setting first step 7 Switch on the appliance at the mains is
10. 1 Warnings 42 9 9 Checking the flUue 44 9 2 Dismantling the external panels 42 9 10Drain pipe inspection 44 9 3 Emptying the d h w system 42 9 11 Visual inspection of appliance 44 E 9 4 Emptying the c h system 42 9 12 Gas pressures and soundness 44 EE 9 5 Combustion analysis check 43 9 13 Water inhibitor concentration 44 Abbreviations used in the manual C h Central heating D h w Domestic hot water D c w Domestic cold water 1 Appliance description Overview Fig 1 1 1 Case front panel 2 Control panel 3 Control panel cover EEN Contro pane 4 circuit temperature and pressure gauge 5 Time switch c h control 6 Lock out signal lamp 7 Lockout reset button 8 Function selector and c h temp control knob 9 D h w temperature control knob 10 Appliance operation lights KEN Isolation valves Fig 1 2 bottom view of the boiler 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 KEN Technical data For detailed technical data see section 4 3 or 4 4 of this manual s 0 9 8 Fig 1 3 Appliance description EE operation lights Three lights 10 in Fig 1 3 give detailed indication regarding the operation of the boiler
11. 4 2 Installation Electrical connections Connection to the electricity supply 1 2 3 Remove the front panel of the case see the section 9 2 in this manual Remove the screws and J Fig 6 9 Loosen the screws K Fig 6 10 30 Remove the side panels or move the lower part of the side panels as indicated in Fig 6 10 and pull the control panel When completely pulled out the panel can ro tate 45 downwards to facilitate the operations on the internal parts Loosen the screws L and remove the service panel Fig 6 11 Fig 6 11 For the electrical connection to the boiler use elec tric wires which conform to the current regulations with flexible cord each core having a cross sec tion area not less than 0 75 mm 6 Connect the electrical supply flexible cord coming from the fused spur isolation switch to the power supply terminal block of the boiler Fig 6 12 keeping the same connections for the live brown wire and the neutral blue wire External 3 Afuse or fused plug with same current rating is recommended Do not connect live wires to terminals to which the room thermostat must be con nected 7 Connectthe earth wire yellow green Connection of a room thermostat The room thermostat must be connected to the terminal block situated next to the control panel Any external controls and connection lines must be rated at 230 V but unde
12. 9 of this manual and the c h flow temperature control knob 8 must be positio ned as illustrated in Fig 2 8 15 Fig 2 8 To satisfy temporary changes or different room temperatures the c h water temperature can also be manually increased or decreased within a ran ge of 15 C by turning the knob 8 Fig 2 8 Mo re details are given in section 7 8 of this manual temperature Minimum Maximum Fig 2 9 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 control knob 9 Adjustment of the d h w temperature is complete ly separate from that of the c h circuit The adjustment system integrated within the boiler automatically controls the flow of gas to the burner in order to keep the temperature of d h w delivered constant between the limits of maxi mum and minimum output Where the demand is at a low level or with the tem perature set to the minimum it is normal to see a cycle of lighting and extinguishing of the burner when running Adjustment It is advisable to adjust the d h w temperature to a level commensurate with the demand minimis ing the need to mix with cold water In this way the automatic control facilities will be fully exploited Where lime scale is present in the water supply hard water areas it is also advisable not to ex ceed the setting
13. A k 3 b 0 Available head k 2 A referred to the net calorific value at 15 C and 1013 25 mbar G20 34 02 MJ m G31 46 34 MJ kg 8 referred to the gross calorific value at 15 C and 1013 25 mbar G20 37 78 MJ m G31 50 37 MJ kg C The value is used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings The test data from which it has been calculated have been certified by a notified body D Values subject to tolerance 18 Technical information Restrictors references CO contents Gas a mm Air color CO content with gas G20 9 0 9 8 Natural G20 6 90 Blue range min max Propane G31 5 00 Blue content with gas G31 10 0 11 0 range min max At nominal heat input of 25 7 kW A E Electrical Data CO content with gas G20 9 0 9 8 Voltage iis 230 range min max Frequency zy 50 FCO content with gas G31 10 0 11 0 Power consumption Ww 125 range min Protection degree IPX4D At minimum heat input of 6 0 kW AXE External fuse rating A 3 Internal fuse rating A N 2 3 15 AF Other flue gas figures Flue pipe diameter Exhaust temperature C 80 Coaxial 60 100 Twin split pipes mm 80 Other specifications Roof mm 80 125 Height mm 803 oe heat flow rate kW 34 0 Width mm 400 Depth mm 350 E 5 2 D 30 Weight dry kg 45 Smoke production g Water volume in the boiler kg 2 2 up to 1 bar z j E 4
14. C h Condensate flow drain connection area A air intake flue outlet pipe co axial B flue outlet pipe 80 mm twin kit C air intake pipe 80 mm twin kit D h w outlet Fig 6 2 all dimensions in mm CEN Joints Fipe sze od Gas c h return c h flow Dow outlet Pressure relief valve Condensate drain 25 plastic Tab 6 1 sizes in mm o d CO Mounting the boiler 1 Take the protective caps off the boiler pipe work 2 Thoroughly clean the connections 3 Mount the boiler on its bracket 4 Fixthec h valves and gas cock to the boiler using the Y gaskets Fig 6 3 5 Fixthe 22 mm pipes C c h circuit to the c h valves A and the 22 mm pipe D gas to the cock B using the Y gaskets 6 Repeatthe above procedure for the d c w inlet utilising the 1 2 cold water inlet valve E the 15 mm copper tail F with its connection nut and two gaskets 7 Fixthe 9 15 mm copper tail G with the Y con nection nut and a Y gasket SIDA oe B e eae F Z c A s 9 Fig 6 3 8 Connect the pipe H Fig 6 4 from the pres sure relief valve to the safety discharge pipe work 9 Fit the condensate drain 15 Fig 6 4 in the air brake connected to the drainage pipework See also section 5 7 in this manual 27 INSTALLATION 2 j E 4 Installation Fig 6 4 Fitting the flue s
15. by a competent person and be in accordance with the current I 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 isolation of the General requirements appliance by the use of a fused double pole isola a bathroom this must then be sited outside the tor having a contact separation of at least 3 mm bathroom between poles or alternatively 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 supply must be readily accessible and adjacent to the appliance except were the appliance is installed in z j E 4 z 25 j E 4 2 6 Installation EM 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 chapter 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 original flue kits only since they are inte gral parts of the boiler The safety relief valve and th
16. d h w If external controls are fitted e g Timeclock room thermostat ensure they call for heat 1 Turn on the electricity supply to the boiler switching on the fused spur isolation switch Commissioning The appliance operation light 10 will flash every 4 seconds 2 Turn the function selector 8 as in Fig 7 6 The appliance operation light 10 will flash every 2 seconds 10 8 7 6 1 D nn III ba Fig 7 6 The boiler will now go through an ignition se quence 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 re set button 7 Forthe first lighting up and following maintenance procedures for the gas supply it may be necess ary to repeatthe 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 function 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 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 pres sures connected to a 1 m flue anda gas supply pressure of 20 mbar Any vari
17. day The time delay setting is activated by moving 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 se lector switch A in the TIMER position press the button D or E until the symbols shown in Fig 2 18 appears in the display and then set the mode se lector switch A to the AUTO position Setting example shown in Fig 2 19 forced ON state for 4 hours Resetting To completely reset the timer press the reset but ton with a pointed object pencil CAUTION pushing the reset button will complete ly erase the settings as well as all the data includ ing the current time and day PES Built in time switch B The combi boilers are equipped with a built in elec tronic time switch 5 Fig 1 3 on page 2 which controls the c h operation Fig 2 20 Display and control panel Mode selector button Reset button OK button Increase setting button Decrease setting button On off button Day selection buttons Day display Time display ON OFF display Setting the current time and weekday Note with a new unit or when the reset button B has been pressed the first day indicator H on the left and the time display are flashing Press repeatedly the button A until the display shows the symbol Press the buttons D or E until the current time ap pears i
18. display shows the symbol AUTO and the boiler is switched off at the fused spur isolation switch the display J indicates only the OFF state The other indications are blanked Reading the timed settings Press repeatedly the button A until the display 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 button is pressed the display shows the details of the next setting The day display H gives a flashing indication of the active day or group of days Changing or deleting the timed settings Press repeatedly the button A until the display 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 setting to be modified or deleted The day display H gives a flashing indication of the active day or group of days Press the button or the buttons G corresponding to the day or days for which itis intended to apply the modification The corresponding 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 appears in the time display Instructions for use The new settings are memorised by pressing the button A
19. fuse rating A 3 Internal fuse rating A N 2 3 15 AF Other flue gas figures Flue pipe diameter Exhaust temperature C 85 Coaxial 60 100 Twin split pipes mm 80 Other specifications Roof mm 80 125 Height mm 803 oe heat flow rate kW 25 7 Width mm 400 Depth mm 350 E Exhaust load 10 C 85 Weight dry kg 44 5 Smoke production kg h 50 Water volume in the boiler kg 2 up to 1 bar z g j E 4 2 E Values refer to tests with a 1 m flue working at the nominal heat input INSTALLATION Technical information Technical data mod M110B 32SM Maximum temperature C 55 Minimum temperature C 35 Maximum pressure kPa 1 000 Nominal kW 34 0 BTU h 116 003 bar 10 kW 37 7 Minimum pressure Sis 5 BTU h 128627 2 Minimum KW owirate BTU h minimum I min kW 30 rise D l min EIU 35 rise D l min 40 rise D l min Maximum kW 33 1 BTUIh 112 933 Gas supply pressures Gas Minimum kW 8 2 on i BTU h 27 977 Maximum condensing kW 35 7 Norm Pa 2 000 3 700 BTU h 121 803 mbar 20 37 Minimum condensing kW 8 9 Max Pa 2 500 4 500 BTU h 30366 mbar 25 45 Min Pa 1700 2 500 A mbar 17 25 Central heating 1 mbar approximately equals 10 H2O Maximum flow temp 85 C O psm Maximum pressure kPa 250 3 Minimum pressure Natural G20 3 60 0 90 5 3 Propane G31 kg h 2 64 0 66 7 in 1000 I h 0 27 Seasonal efficiency
20. pointed object pencil CAUTION pushing the reset button will complete ly erase the settings as well as all the data includ ing the current time and day 11 3 Useful advice EXI Central heating For reasonably economical service install a room thermostat Never shut off the radiator 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 Ifthe ambient temperature is too high do not alter the radiator valves Reduce the central heating temperature instead by means of the room ther mostat and the function selector 8 in Fig 3 1 Fig 3 1 Frost protection This appliance is provided 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 isola tion switch or close the gas inlet cock Periodic maintenance For efficient and continuous operation of the boiler it is advisable to arrange maintenance and cleaning by an Authorised Service Centre En gineer at least once a year During the service the most important compo nents of the boiler will be inspected and cleaned This service can be part of a maintenance con tract In particular you are advised to have the following checks carried o
21. position of the d h w temperature control knob 9 as indicated 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 softener With Such a device you should avoid periodic descal ing 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 prevent reaching a high enough temperature have the ap propriate output limiting valve installed by your In staller or an Authorised Service Engineer Instructions for use 2 6 Extinguishing To turn the boiler off set the function selector 8 to the position shown in Fig 2 11 The appliance operation light 10 will flash every 4 Om ia seconds 8 gt hb Fig 2 11 When you do not expectto use the boiler for along period 1 Switch off the electricity supply to the boiler by means of the fused spur isolation switch 2 Shut off the gas supply cock 13 and the valves for the water circuits fitted under the boiler Fig 2 12 3 Empty the water circuits if necessary as shown in the installation instructions in the sec tion maintenance r3 J 13 Closed position Fig 2 12 Built in time switch A The combiboi
22. switch off the boiler immedi ately at the fused spur isolation switch and contact your Installer or an approved Service Engineer Air introduced into the boiler during this filling pro cess will vent through the automatic air purger fitted to the boiler You may also find it necessary to vent air from your radiator circuit using your radiator key however be aware that excessive venting will cause the pressure in the system to drop Always ensure thatthe pressure gauge is set atthe required pressure ignition 1 Check that the valves located in the lower part of the boiler are open Fig 2 3 Instructions for use 3 gt UG qa a Open position lt a 2 Turn on the electricity supply to the boiler switching on the fused spur isolation switch The appliance operation light 10 Fig 2 4 will flash every 4 seconds stand by condition 3 Iftheboileristo be usedfor c h and d h w posi tion the function selector 8 as in Fig 2 4 The appliance operation light 10 will flash every 2 seconds operating boiler Fig 2 8 10 8 CM s D DU III Fig 2 4 4 If d h w supply only is required position the function selector 8 as in Fig 2 5 The appliance operation light 10 will flash every 2 seconds operating boiler Fig 2 5 EXI circuit temperature The output temperature of c h water is adjustable from a minimum of about 25 C to a maximum
23. 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 pro cedure you are advised to contact your In staller 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 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 notto be used for frost protection then follow the instructions given in section 2 6 on page 7 Refilling procedure 1 Isolate the boiler from the electrical supply at the fused spur Reconnect the filling loop as demonstrated in Fig 2 1 Control valve Double check valve Temporary connection Control valve Supply pipe cold water inlet C h return pipe Fig 2 1 2 Open the valves of the filling loop and watch the gauge until it reaches normal filling pres sure as shown in Fig 2 2 Normal filling pressure Fig 2 2 3 Close the valves and remove the filling loop If you experience any difficulty with the oper ation of the boiler
24. 2 E Values refer to tests with a 1 m flue working at the nominal heat input g j E 4 Technical information EEN Hydraulic specifications 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 Wh 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 Vh Fig 4 4 model M110B 32SM The hydraulic specifications in Fig 4 3 and Fig 4 4 representthe 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 Operation of integral By pass valve The boiler is fitted with an automatic by pass valve 45 on page 14 which protects the primary heat exchanger Theintegral automatic by pass will ensure a mini mum flow through the primary heat exchanger of the boiler in the eventthatthe flow around the cen tral heating circuit is restricted due to closure of thermostatic or system control valves Expansion vessel Note this boiler is designed for operation only in a sealed central heating system The height difference between the pressure relief valve and the highest point in the system may be 10m at most For greater differences increase the pre load pressure in the expansion vessel 44 on page 14 and
25. 7 Ignition electrodes 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 Technical information 42 Main diagram z 33 S E WE 2 S N lt 18 29 so 44 31 47 A WI 42 34 41 owe x 7 X dur E 30 32 261 2 15 13 11 16 12 44 sFig 4 2 INSTALLATION Technical information EEN Technical data mod M110B 24SW Maximum temperature C 55 Minimum temperature C 35 Maximum pressure kPa 1 000 bar 10 Minimum pressure kPa 30 bar 0 3 Flow rate Nominal Minimum at minimum 30 rise D 35 rise D 40 rise D Maximum kW 251 BTU h 85638 Gas supply pressures Gas Minimum kW 5 8 on is BTU h 19 789 Maximum condensing kW 27 3 Norm Pa 2000 3700 BT
26. E COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 8 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 10 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE ES 9 17962 1339 1 4707 52A5 UK Biasi UK Ltd Newman Park Western Way Wednesbury WS10 7BJ Sales Tel No 0121 506 1340 Sales Fax No 0121 506 1360 Service Tel No 0121 506 1350 Service Fax No 0121 506 1370 www biasi co uk
27. H Fig 9 5 6 Remove the fixing fork and remove the gas EX Cleaning the condensing heat pipe J Fig 9 6 exchanger and burner Z lt 2 lt u _ Fig 9 7 rear view of the fan 7 Disconnectthe connector of the fan K by pres sing the plastic hook L placed on the rear side of the connector Fig 9 7 8 Remove the nuts M Fig 9 5 and the burner fan group D Fig 9 5 If you notice dirt on the coil of the condensing heat To remove the burner fan group D Fig 9 5 exchanger 19 on page 14 brush out it with a 1 Take off the front and side panels of the case 43 MAINTENANCE Maintenance bristle paintbrush and remove the dust with a hoover Fig 9 8 The siliconic gasket N Fig 9 8 must be re placed if damaged or anyway every 2 years Reassemble the parts carrying out the removal operations in reverse order Checking the pressurisation in the expansion vessel Empty the central heating system as described in section 9 4 of this chapter and check that the pres sure in the expansion vessel is not less than 1 bar See also section 4 6 page 20 of this manual If the pressure is lower take steps to correct the pressure level 19 8 Cleaning the burner The burner 38 on page 14 does not need special maintenance but it is sufficient to dust it with a bristle paintbrush 44 To reach the burner do the operati
28. INSTRUCTIONS THE OPERATION OF THE APPLIANCE AND SYSTEM CONTROLS HAVE BEEN DEMONSTRATED TO THE CUSTOMER THE MANUFACTURER S LITERATURE HAS BEEN LEFT WITH THE CUSTOMER COMMISSIONING ENG S PRNT CORGIIDNo SIGN DATE SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below Service Provider Before completing the appropriate Service Interval Record below please ensure you have carried out the service as described in the boiler manufacturer s instructions Always use the manufacturer s specified spare part when replacing all controls SERVICE 1 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 3 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 5 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 7 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 9 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 2 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 4 DATE ENGINEER NAME COMPANY NAME TEL No CORGI ID CARD SERIAL No COMMENTS SIGNATURE SERVICE 6 DATE ENGINEER NAM
29. U h 93 144 mbar 37 Minimum condensing kW 6 3 Max Pa 2 500 4 500 BTU h 21 495 mbar 25 45 Min Pa 1 700 2 500 A mbar 17 25 Central heating 1 mbar approximately equals 10 H2O Maximum flow temp 85 C O asme Maximum pressure kPa 250 ar Pa 3 Minimum pressure Natural G20 272 0 63 5 3 Propane G31 kg h 2 00 0 47 3 in 1000 I h 0 23 Seasonal efficiency A k 3 b 0 Available head k 2 A referred to the net calorific value at 15 C and 1013 25 mbar G20 34 02 MJ m G31 46 34 MJ kg 8 referred to the gross calorific value at 15 C and 1013 25 mbar G20 37 78 MJ m G31 50 37 MJ kg C The value is used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings The test data from which it has been calculated have been certified by a notified body D Values subject to tolerance 16 Technical information Restrictors references CO contents Gas a mm Air color CO content with gas G20 9 0 9 8 Natural G20 5 65 Fuchsia range min max Propane G31 430 Fuchsia content with gas G31 10 0 11 0 range min max At nominal heat input of 25 7 kW A E Electrical Data CO content with gas G20 9 0 9 8 Voltage iis 230 range min max Frequency zy 50 FCO content with gas G31 10 0 11 0 Power consumption w 108 range min max Protection degree IPX4D At minimum heat input of 6 0 kW AXE External
30. an approved engineer using genuine spare parts Thus do no more than switching off the boiler yourself see the in structions 1 Your boiler allows heating up of water to a temperature less than boiling point must be connected to a central heating A system and or a hot water supply system compatible 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 condi tions During the operation it is quite normal that the boiler produces a white plume of condensation vapour from the flue terminal This is due to the high efficiency of the ap pliance and may be particularly evident with low outdoor temperatures Safe handling of substances Biasi products are manufactured in accordance with ISO 9000 and do not and willnot contain any hazardous materials or substances such as as bestos mercury or C F C s The appliance packaging does not contain any substances which may be considered a hazard to health Combustion chamber panels Material mineral fibres Known hazards Some people can suffer red dening 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 P
31. at the appliance heat exchanger is not a natural col lecting 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 pas sing 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 circulation 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 minimum flow of 200 300 Its hr through the main heat ex changer If you are installing a system that includes thermo static radiator valves TRV and or small bore 8 10 mm it may be necessary to fit an external by pass to facilitate correct operation of the boiler The fitting of an external bypass helps to prevent and limit system noise Air release points These must be fitted at all high points where air will natural collect and must be sited to facilitate com plete filling of the system 23 z g j E j E 4 2 General requirements Expansion vessel The appliance has an integral sealed expansion vessel to accommodate the increase of water vol ume when the system is heated Refer to Tab 4 1 on page 20 for its technical data If the heating circuit has an unusually high water
32. ation in gas supply pressure or flue length may result the customer experiencing a harmonic noise from the boiler In these circumstances it may be necessary to reset the burner gas pressures in accordance with section 11 Gas Valve of the Service Man ual It should be noted that a Flue Gas Analyser is required for this procedure Checking the inlet pressure 1 Remove the front panel of the case see sec tion 9 2 and lower the control panel see sec tion 6 9 Fig 7 7 2 Loosen the internal screw onthe Inlet Pressure Test Point 42 Fig 7 7 of the Gas Valve and connect a pressure gauge using a suitable hose Open the gas inlet valve 13 on page 2 Turn on the electricity supply to the boiler switching on the fused spur isolation switch The appliance operation light 10 will flash every 4 seconds 5 Setthe function knob 8 as illustrated in Fig 7 8 10 8 7 6 pol On m h Fig 7 8 6 7 Open at least one hot water tap fully Read the inlet pressure value and ensure that it is within the limits given in the table Gas sup ply pressures sections 4 3 and 4 4 of this man 35 Z 3 g 3 E 4 2 Commissioning ual Ifit does not comply with the required pressure check the gas supply line and governor for faults and or correct adjustment Where the boiler is connected to a gas supply which has a zero se
33. boiler you are ad vised to have a professionally qualified per son 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 de vices required by the current Regulations Ensure that check with the Installer that he has con nected and terminated the pressure relief valve in a manner which allows safe dis charge The manufacturers are not respon sible for damage caused by opening of the pressure relief valve and consequent escape of water if this is not connected and termin ated the installer has connected the conden sate outlet to a suitable drain pipe 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 1 Do not touch the appliance with parts of the body that are wet or damp and or bare feet 1 Do not block or modify the condensate outlet and pipework In case of structural work or mainten ance near the exhaust duct and or fume ex haust devices or their attachments turn off the appliance On completion of the work have a professionally qualified person check their efficiency Repairs under guarantee must be car ried out only by
34. ce Fig 6 15 It is necessary cut away the plastic vice panel to route the electrical cords an External frost protection 10 Connect the frost thermostat between ter minals 1 and 2 as shown in Fig 6 16 or Fig 6 17 Do not connect live wires to terminals to which the frost thermostat must be con nected Room thermostat 230V rating Frost Thermostat 230V rating O Z 3 2 1 Power supply S S S erminal block xternal controls Ol terminal block 0 ORO Fig 6 16 31 j E 4 z Installation Room Frost thermostat thermostat T with anticipating 230V rating resistor 230V rating Z 3 EN lt N 3 2 1 Power supply 2 erminal block al SIONS External controls terminal block OD Fig 6 17 32 7 Commissioning WARNING The commissioning of this boiler and system must only be undertaken by a professionally qualified person in accordance with the re quirements of the Gas Safety Installation and Use Regulations and be approved by C O R G I Ensure that the Benchmark Log Book is satis factorily completed during the commissioning process The Log Book is located at t
35. complete installation should be tested for soundness For Ireland IE refer to 1 5 813 2002 EEN Air supply The room in which the boiler is installed does not require a purpose provided air vent EX Ventilation If installed in a cupboard or compartment it is not necessary to provide additional ventilation for cooling for this particular product However con sideration must be given to clearance require ments for maintenance see section 6 2 and under no circumstances must stored articles be al lowed to come into contact with the boiler or flue pipe Condensate drain Ensure that the condensate discharge complies with the national or local regulations in force The condensate pipe must be fitted in accordance with Building Regulations Drainpipe material should be resistant to acid as the condensate is slightly acid with a pH less than 6 5 The boiler includes a trap 32 page 14 that pre vents the combustion products entering the drain however an additional trap with a seal of at least 75 mm and an air break between the traps is required Fig 5 2 Fig 5 3 The length of the condensate pipe should be kept at minimum To avoid condensate being trapped thedrainpipe should be run with a fall of atleast 2 5 45 mm m away from the boiler the number of bends and joints should be kept at minimum the drainpipe should be adequately fixed to prevent pipe sagging If a part of the d
36. 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 pressure 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 do mestic system from damage due to excessive do mestic water pressure Filling A method for initially filling the system and replac ing water lost during servicing must be provided and it must comply with local water authority regu lations The correct method is shown in Fig 5 4 The temporary connection must be removed immediately after filling Control valve Double check valve Temporary rA connection 1 P Control valve Supply pipe cold water inlet C h return pipe Fig
37. cording to the in structions given in the Service manual section Gas valve Adjustment 21 To adjust if necessary the maximun useful central heating output required see section 7 8 in this manual 22 Stick on the inside of the left hand side panel adjacent to the data badge the self adhesive label included with the conversion kit indicat ing the type of gas and the gas pressures to which the appliance has been set Replace the adjustment protection cap 23 Replace the front panels of the case 41 MAINTENANCE 9 Maintenance Warnings The procedures detailed in this chapter must be carried out only by a professionally 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 isolation switch adjacent to the appliance and turn off the gas cock before carrying out any pro cedures whatsoever for cleaning mainten ance opening or dismantling boiler panels The Engineer should complete the Service In terval Record at the back of the manual EPS Dismantling the external panels MAINTENANCE Front panel 1 Loosen the three screws A Fig 7 5 2 L
38. 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 enter button C Proceed in the same way for other settings Setting example shown in Fig 2 16 A ON time 7 45 day Monday to Friday B OFF time 10 30 day Monday to Friday A Fig 2 16 Activating the timed settings Set the mode selector switch A to the AUTO posi tion 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 O Os 00060 Fig 2 17 Note when the mode selector switch A is in the AUTO position and the boiler is switched off atthe fused spur isolation switch the display J indicates only 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 details of the next setting The day display H gives a flashing indication ofthe active day or group of days 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 set
39. e 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 pipe and traps for cleanness In this case and in case of persistent lock out call a competent and responsible Service Engineer Useful advice If noises due to air bubbles are heard during operation you should check that the pressure on the tem perature and pressure gauge Fig 2 2 on page 4 is not below the correct setting If required top up the system correctly as de scribed in the section 2 2 of this manual Bleed any air presentin the radiators ifnecessary If the pressure on the temperature and pres sure gauge 4 on page 2 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 section 2 2 of this manual If topping 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 4 on page 2 that the pressure in the central heating circuit is not close to 3 bars In this case tempera ture rise in the circuit can cause the pressure relief valve to open So that this does not happen and to decrease 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 radiat
40. e appliance must be designed specifically for this purpose This appliance is not suitable for external installa tion EX 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 Theappliance mustbe installed so thatthe flue ter minal is exposed to external air It must not be installed so that the terminal dis charges into an other room or space as an out house or lean to It is important that the position ofthe terminal allows a free passage of air across at all times Theterminal should be located with due regard for the damage or discoloration that might occur to building products in the vicinity In cold and or humid weather water vapour may condense on leaving the flue terminal the effect of such pluming must be considered Pluming may easily occur at the terminal Where possible terminal position which could cause a nuisance should be avoided 21 z g j E 4 2 j E 4 2 General requirements The minimum acceptable spacing from the ter minalto obstructions and ventilation openings are specified in Fig 5 1 Flue terminal position mm A Directly below a window or other opening 300 B Below gutters soil pipes or drain pipes 75 D Below gaves eiue eee eet e eel 200 D Below balc nies 600 E Below car portroof NO
41. e condensate drain must be connected to a suitable drain or discharge in a safe manner The electrical wiring must conform with current Regulations in particular the boiler must be earthed using the cor rect bonding clamp a fused spur isolation switch with a gap of atleast 3 mm between the contacts must be installed near to the boiler Refer to section 6 9 in this chapter for the electrical connec tions In no circumstances will the manufacturer be held responsible if the warnings and in structions contained in this manual have not been complied with EN Precautions for installation For the installation proceed as follows The boiler must be fixed to a strong wall The dimensions for the exhaust fume duct de tailed in section 6 7 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 necess ary to leave the minimum gaps indicated in Fig 6 1 26 250 200 Fig 6 1 all dimensions in mm Wheninstalling the boiler in a cupboard cover or alcove allow atleast 50mm permanent clear ance from the front face of the boiler Also en sure sufficient clearance to allow free access for servicing and the lowering of the front con trol panel If the boiler is installed outside cover the ap pliance to protect it against the elements and add some sp
42. ecial anti freeze neutralised to the c h system Before installing the boiler on an existing c h system flush it out thoroughly before fitting the boiler so as to remove muddy deposits Itis advisable to equip the system with a sedi ment filter or use a water treatment product in the circulating water The latter option in particular not only cleans outthe system but also has an anti corrosive effect by promoting formation of a protective Skin on metal surfaces and neutralising gases present in the water We recommend the use of a suitable universal inhibitory to protect the c h system from cor rosion Installing the bracket Precautions Before mounting the bracket check that the di mensions for fitting the exhaust fume duct are complied with refer to the leaflet included with the flue kit packed separately Utilise the paper template supplied with the boiler to determine the fixing position 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 Installation total wet load Refer to the weight given in the technical data tables specific for each model Overall dimensions a ia af A Band C 217 245 803 700 Boiler front Electric connection area 257 Cold C h water Gas inlet return
43. eference figures are given in the sections 4 3 or 4 4 of this manual Flue gas figures Checking the condensate drain pipe Check the soundness and integrity of the conden sate drain pipe 37 j E 4 z j E 2 Commissioning Verify the cleanness and correct filling of the con densate traps Instructing the user Hand over this combined User amp Installation man ual and the Service manual to the end user and ex plain how to use the unit in both c h and d h w modes Take the User step by step through the lighting in structions Show the User how to switch off the appliance quickly and indicate the position of the electric supply isolator Explain the proper use and adjustment of all sys tem controls this will ensure the greatest possible fuel economy 38 Explain the function and use of the function selec tor 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 damage should the appliance be inoperative when freezing condi tions 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 reg istration Finally advise the User that for continued safe and efficient operation the appliance must be ser
44. eneralrequirements 21 7 Commissioning 5 1 Related documents 21 7 1 Electrical installation 5 2 Location of appliance 21 7 2 Gas supply installation 5 3 Flue 21 7 3 Filling the d h w system 5 4 Gassupply 22 7 4 Initial filling of the system 5 5 Airsupply 22 7 5 Condensate pipe and traps 5 6 Ventilation 22 7 6 Lighting the boiler 5 7 Condensate drain 2 7 7 Checking the gas supply pressure 5 8 Water circulation c h 23 7 8 Maximum output in c h mode 5 9 Domestic water 24 7 9 External temperature probe setting 5 10 Water treatment 24 optional o E 36 5 11 Electrical supply o4 710 Checking the ignition device 37 7 11 Checking the flue system 37 6 Installation 26 7 12 Checking the condensate drain pipe 37 6 1 Warnings 26 7 13 Instructing the user 38 8 Gas conversion 39 9 6 Cleaning the condensing 8 1 Warnings 39 heat exchanger and burner 43 MM 8 2 Procedures 39 9 7 Checking the pressurisation o in the expansion vessel 44 ES 9 Maintenance 42 9 8 Cleaning the burner 44 9
45. eople with a history of skin complaints may be particularly susceptible to irritation High dust le vels are only likely to arise following harsh ab rasion In general normal handling and use will not present high risk follow good hygiene prac tices wash hands before touching eyes consum ing food drinking or using the toilet First aid Medical attention must be sought fol lowing eye contact or prolonged reddening of the skin Thermostat Temperature gauge Description Sealed phial and capillary contain ing 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 follow ing eyes skin contact wash with clean water e Gas appliance Directive 90 396 CEE e Boiler Efficiency Directive 92 42 CEE e Low voltage Directive 73 23 CEE wards third parties Appliance category 112 Gas G20 20 mbar G31 37 mbar Country of destination United Kingdom GB Ireland IE This appliance conforms with the following EEC directive e Electromagnetic Compatibility Directive 89 336 CEE 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 in
46. formative support and it cannot be considered as a contract to Boiler installation and commissioning tips The installation must be carried out by a qualified person who will be responsible for observing the current Regulations 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 in stallation 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 rec ommended that you puta dust sheet over the top 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 Itis therefore recommended that the pump rotor be manually turned to free its rotation before turning the boiler on V 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 tem perature of the central heating system at very low levels In case of underfloor heating system a tem perature limiting device e g a safety thermo stat is recommended to stop the boiler in case that the water temperature exceeds the design temperature You are strongly advised to flush out the s
47. he end of this manual This manual should be handed to the User following completion of the installa tion and commissioning process Failure to comply with these requirements may invali date the manufacturers guarantee For Ireland IE it is necessary to complete a Declaration of Conformity to indicate com pliance to 1 S 813 2002 Electrical installation Preliminary electrical system checks to ensure electrical safety shall be carried out by a compet ent person i e polarity earth continuity resis tance to earth and short circuit If a fault has occurred on the appliance the fault find ing procedure should be followed as specified in the service manual Gas supply installation 1 Inspect the entire installation including the gas meter test for soundness and purge all as de scribed in BS 6891 For Ireland IE refer to 1 5 813 2002 2 Open the gas cock 13 Fig 7 1 on the appliance and check the gas connector on the appliance for leaks Filling the d h w system 1 Close all hot water draw off taps 2 Open the cold water inlet valve 12 Fig 7 1 3 Slowly open each draw off tap and close it only when clear water free of bubbles flows out Initial filling of the system 1 Open the c h flow and return valves 2 Remove the front and side panels of the case see the section 9 2 in this manual and the sealed chamber lid 3 Unscrew the condensing heat exchanger air purger valve 17
48. ift and remove the panel B Air Flue exhaust Sampling points B Z Fig 9 1 Side panels 3 Loosen the screws C Bring the bottom of the panels away from the boiler and lift them free ing them from the top hooks Fig 9 2 42 Fig 9 2 FEN Emptying the d h w system 1 Turn off the d c w inlet isolating valve 12 in Fig 9 3 andturn on the hot watertaps and any drain cocks Closed position 19 4 Emptying the c h system 1 2 3 Close the c h isolating valves 11 and 16 in Fig 9 3 Open the central heating drain cock 26 in Fig 9 4 A small quantity of water will remain in the d h w heat exchanger after draining If the boiler is being drained to prevent freezing the d h w heat exchanger must be removed and inverted to drain fully or an antifreeze solution added Maintenance 2 Remove the sealed chamber lid 3 Disconnectthe connectors of the ignition elec trodes E and detection electrode F Fig 9 5 i Fig 9 4 ESB Combustion analysis check If itis necessary to carry outa combustion analysis remove the plugs indicated in Fig 7 5 Reference figures are given in the sections 4 3 or 4 4 of this manual If the analysis results are not within the reference Fig 9 6 right side of the fan figures in the Service manual section Gas valve Adjustment 4 Disconnect the rubber pipe G Fig 9 6 5 Unscrew the gas connector
49. lers are equipped with a builtin elec tronic time switch 5 Fig 1 3 on page 2 which controls the c h operation H _ Lr nin LULULULG use TIMER p us us us us NU 2000 F E D C B Fig 2 13 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 cC T 0mnmoou Setting the current time and weekday Note with a new unit or when the reset button B has been pressed the first day indicator H on the left and the time display are flashing Set the mode selector switch A to the position and press the buttons D or E until the current time appears in the display l Press the day selection button corresponding to the current day considering that button 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 Current time 16 30 day Thursday Instructions for use Fig 2 14 Setting the switching time and day or days 20 memory locations are available corresponding 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 Fig 2 15 Press the buttons D or E to set the desired ON time Press the buttons G to set the
50. mp TEMPERATURE CONTROL TO HOT WATER CYLINDER T STAT amp PROGRAMMERTMER 1 COMBIBOLER HEATING ZONE VALVES FITTED NOT REQUIRED HOT WATER ZONE VALVES __ NOT REQUIRED THERMOSTATIC RADIATOR VALVES FITTED AUTOMATIC BYPASS TO SYSTEM L FiTTED NOT REQUIRED FOR ALL BOILERS CONFIRM THE FOLLOWING THE SYSTEM HAS BEEN FLUSHED IN ACCORDANCE WITH THE BOILER MANUFACTURER S INSTRUCTIONS THE SYSTEM CLEANER USED THE INHIBITOR USED FOR THE CENTRAL HEATING MODE MEASURE amp RECORD GASRATE mm BURNER OPERATING PRESSURE IF APPLICABLE Cl na mbar CENTRAL HEATING FLOW TEMPERATURE 1 CENTRAL HEATING RETURN TEMPERATURE FOR COMBINATION BOILERS ONLY HAS A WATER SCALE REDUCER BEEN FITTED ves noO WHAT TYPE OF SCALE REDUCER HAS BEEN FITTED FOR THE DOMESTIC HOT WATER MODE MEASURE amp RECORD GAS RATE MAXIMUM BURNER OPERATING PRESSURE IF APPLICABLE l wa mbar COLD WATER INLET TEMPERATURE be HOT WATER OUTLET TEMPERATURE L 7 WATER FLOW RATE lism FOR CONDENSING BOILERS ONLY CONFIRM THE FOLLOWING THE CONDENSATE DRAIN HAS BEEN INSTALLED IN ACCORDANCE WITH THE MANUFACTURER S INSTRUCTIONS _ YES _ FOR ALL INSTALLATIONS CONFIRM THE FOLLOWING THE HEATING AND HOT WATER SYSTEM COMPLIES WITH CURRENT BUILDING REGULATIONS THE APPLIANCE AND ASSOCIATED EQUIPMENT HAS BEEN INSTALLED AND COMMISSIONED IN ACCORDANCE WITH THE MANUFACTURER S
51. n be immediately flushed through This procedure must be repeated twice more During this operation a c h flushing detergent must be used in the quantities as specified by the appropriate 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 im portant to ensure the system water is treated with a suitable scale and corrosion inhibitor in accord ance with the manufacturers instructions Condensate pipe and traps The full length of the condensate pipe should be check for leaks 34 Before to run the boiler ensure that the built in con densate trap and any other trap in the drain sys tem is correctly filled with water Fill the built in condensate trap by removing the flue elbow and pouring a cupful of water into the flue outlet Fig 7 4 Fig 7 4 In alternative to avoid the removal of the flue elbow pour the water through the flue sampling point Fig 7 5 Flue exhaust Sampling points Fig 7 5 Lighting the boiler 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 sec onds 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 pro vide
52. n the display I Press the day selection button G corresponding 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 Current time 16 30 day Thursday c T ronmoou ox Instructions for use Fig 2 21 Setting the switching time and day or days 28 memory locations are available corresponding to 14 on off sequences Press repeatedly the button A until the display shows the symbol C1 Fig 2 22 The symbols shown in Fig 2 22 appears in the display LA M ka Fig 2 22 Press the buttons D or E to set the desired ON time Press the buttons G to setthe desired day or days of operation Pressthe 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 enter button C Proceed in the same way for other settings Setting example shown in Fig 2 23 A ON time 7 45 day Monday to Friday B OFF time 10 30 day Monday to Friday a del E F Wi y aye ILI ae 00000 00000 A B 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 10 o 0000 0000000 Fig 2 24 Note when the
53. of about 85 C Fig 2 6 by turning the knob 8 Adjustment of the boiler temperature alters the gas flow at the burner according to the thermal de mand in the system So itis 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 Minimum lt e d l he Maximum he Fig 2 6 Adjustment of temperature WITHOUT the ex ternal temperature probe optional fitted In order to achieve optimal settings for economy and comfort we recommend adjusting the oper ating temperature of the c h water according to the outside temperature positioning the knob as follows From 5 to 15 C Between 5 5 C Lower than 5 C Fig 2 7 Instructions for use Your qualified Installer will be able to recommend the most suitable adjustment for your system The temperature and pressure gauge 4 Fig 1 3 on page 2 will allow you to check that the set tem perature is obtained Adjustment of temperature WITH the external temperature probe optional When the boiler is connected to the external tem perature probe optional the temperature 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 7
54. olating spur 8 Turn the boiler OFF positioning the function se lector 8 as indicated in Fig 8 5 10 O00 m Fig 8 5 9 Disconnect the C h temperature probe NTC 18 in Fig 8 6 10 Keep pressed the reset button 7 for about 10 seconds until the lock out signal lamp 6 blinks 11 Connectthe C h temperature probe NTC 18 in Fig 8 6 12 Press the reset button 7 repeatedly 4 times until the lamps 10 give the indication as in Fig 8 7 gas type mode 1 Where LJ BD 000 Fig 8 7 Atthis step itis possible to visualize the current set ting by keeping the reset button 7 pressed for more than 5 seconds The lamps 10 will flash a number of times corresponding to the setting of the knob 9 in Fig 8 8 Q Lamp OFF Lamp ON 40 Gas type _ gt _ LPG Setting No 7 NATURAL GAS be 9 O Dn Fig 8 8 Gas supply Position of knob 9 Natural gas G20 1 L P G G31 7 Fig 8 9 13 Tochangethe setting turn the knob 9 on a posi tion 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 indicat ing that the setting has changed and must be memorised 14 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 15 Press the reset b
55. ons described in the section 9 6 of this manual EEN Checking the flue Have the integrity of the flue outlet pipe 48 on page 15 air intake pipe 49 on page 15 checked periodically at least once a year For all the above maintenance operations it is ad visable to call an approved Service Engineer EXT Drain pipe inspection Check the soundness and integrity of the conden sate drain pipe Verify the cleanness and correct filling of the con densate traps EXI Visual inspection of appliance Visually inspect all water joints seals and connec tions for any evidence of leakage and retighten grease or replace them as necessary Gas pressures and soundness Check appliance for gas soundness Recheck op erational pressures as described in section 7 7 page 35 of this manual EXE 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 partial drain down A conductivity meter can be used to check the cor rect concentration of inhibitor in the heating water BENCHMARK No Benchmar J GAS BOILER COMMISSIONING CHECKLIST BOILER SERIAL No _ _ NOTIFICATION No _ CONTROLS To comply with the Building Regulations each section must have a tick in one or other of the boxes TIME 8 TEMPERATURE CONTROL TO HEATING ROOMTISTAT 8 PROGRAMMER TIMER PROGRAMMABLE ROOMSTAT TIME a
56. ors 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 filter or limescale deposited in the domestic hot water heat ex changer It is advisable to have the appliance cleaned out by an Authorised Service Centre En gineer If water should occasionally leak from the boiler shut off the valves positioned under the boiler Fig 2 12 on page 7 and call an Authorised Ser vice Centre Engineer In this case or in case of problems other than those mentioned here switch off the boiler as described in section 2 6 on page 7 and calla competent and responsible Service Engineer 13 j E 4 Technical information EXE Overview 17 30 29 Fig 4 1 15 Condensate drain pipe 11 C h return valve 12 Domestic cold water inlet valve 13 Gas inlet valve 14 D h w outlet pipe 16 C h flow valve 14 17 Condensing heat exchanger air purger valve 18 C h temperature probe NTC 19 Condensing heat exchanger 20 Safety thermostat 21 Flame detecting electrode 22 Transformer 23 Air manifold 24 C h pressure relief valve 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 3
57. otland 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 carried out by a Competent Person and installed in accord ance with the current edition of 1 5 813 2002 Do mestic Gas Installations the current Building Regulations and reference should be made to the current ETCI rules for electrical installations Location of appliance The appliance may be installed in any room or in ternal space although particular attention is drawn to the requirements of the current I E E Wir ing Regulations and in Scotland the electrical provisions of the Building Regulations applicable in Scotland with respect to the installation 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 aroom containing a bath or shower any electri cal switch or appliance control utilising mains electricity should be so situated that it cannot be touched by a person using the bath or shower The location must permit the provision of an ad equate flue and termination For unusual locations special procedures may be necessary and BS 6798 gives detailed guidance on this aspect A compartment used to enclose th
58. r about 5 seconds until the lights 10 briefly blinks simultaneously 7 Toresetthe boiler to the normal operation turn it OFF and ON by the function selector knob 8 In any case the boiler automatically 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 obtain 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 tempera ture can be manually increased or decreased within a range of 15 C by turning the knob 8 The effect of the knob 8 for a coefficient K set to 1 5 is illustrated in Fig 7 14 C h flow temperature C k 5 10 15 20 25 External temperature C Fig 7 14 Checking the ignition device With the burner on high flame close the gas cock After four ignition attempts within about four min utes the lock out signal lamp 6 Fig 1 3 on page 2 must appear To reset the boiler press and release the boiler reset button 7 Fig 1 3 on page 2 Checking the flue system The 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 correctly in ac cordance with the flue fitting instructions and Fig 5 1 on page 22 of this manual To carry out a combustion check refer to the in structions given in the section 9 5 of this manual R
59. r no circum stances should external live voltage be con nected to the room thermostat link on the boiler Do not connect live wires to terminals to which the room thermostat must be connected When connecting any type of external control the link M in Fig 6 12 must be removed Installation To fused spur L isolation switch A Power supply terminal block g External controls Plor a terminal block e Fig 6 12 8 Connect the room thermostat between ter minals 1 and 3 as shown in Fig 6 13 or Fig 6 14 Room thermostat 230V rating LON 4 Ea RC NS Power supply Isl Ie 7 terminal block JOAN oo a External controls MM ESI terminal block Room thermostat with delay resistor 230V rating L N Power supply 0 9 19 terminal block ered 3 2 11 S S External controls LOO s terminal block aj Fig 6 14 9 Route the electrical supply flexible the external control flexible cord as illustrated in Fig 6 15 Lock the flexible cords in place with the flexible cord clamps aq To the fused spur isolation switch To the external control devi
60. rainpipe runs externally this part should be kept as short as possible and protected to reduce the risk of freezing General requirements Connection of condensate drainage pipe to in ternal soil and vent stack A Condensate drain Y B i n DUST gt C 450 E gt Dimensions in mm Fig 5 2 Boiler Visible air break 75 mm trap Internal soil and vent stack Invert 450 mm up to three storeys gt Connection of condensate drainage pipe downstream of a sink waste trap A Condensate drain B lv NI e WA Dimensions in mm Fig 5 3 Boiler Visible air break 75 mm trap Sink Open end of condensate drainage pipe direct into gully below grating but above water level Sink lip TIOOU gt ES 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 The return temperature must not be lower of 30 C Copper tubing to BS EN 1057 is recommended for water pipes Jointing should be either with capil lary soldered or with compression 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 release valve it should be ensured as far as possible th
61. t governor then itis necess ary 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 figures and complete the Certificate of Exemption section of the Benchmark 8 Switch off the boiler close the gas inlet valve and close the water tap 9 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 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 External temperature probe setting optional The external temperature probe if fitted allows 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 represent the c h flow temperature setting as a function of the external temperature measured by the exter nal temp probe The relationship between the external tempera ture and the c h flow temperature is represented by the coefficient K Fig 7 9 that can be set be tween 0 and 6 as hereafter explained E g to obtain a flow temperature setting of 60 C when the e
62. the system when cold by 0 1 bar for each additional 1m Capacity Pre load pressure Maximum volume of water in the system Tab 4 1 Where conditions are Average maximum temperature of the system is 85 C Initial temperature when filling up the system is 10 C For systems with volumes greater than 109 I an additional expansion vessel must be provided 20 5 Generalrequirements Biasi UK Ltd support the Benchmark initiative The Benchmark Log Book is located at the back of this manual and should be completed by the Installing 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 For Ireland IE it is necessary to complete a Declaration of Conformity to indicate com pliance to 1 S 813 2002 This appliance must be installed by a compet ent person in accordance with the Gas Safety installation 8 Use Regulations EXI Related documents The installation of this appliance must be in ac cordance with the relevant requirements of the current Gas Safety Installation amp Use Regula tions the Local Building Regulations the current E E Wiring Regulations the Regulations and by laws of the local water undertaking and in Scotland in accordance with the Building Stan dards Sc
63. tical rise of 0 5 m from the boiler In all circumstances the flue terminal must dis charge horizontally and the equivalent flue length must not exceed 10 metres Elbows 45 amp 90 Fig 6 5C Co axial 60 100mm Elbow kits enablethe 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 acceptable length of the flue system as follows 45 reduce length by 0 5 m 90 reduce length by 1 m Fig 6 5 Twin pipe kits o 80 mm Fig 6 6 Various twin split pipes kits and optional acces Sories elbows are available to assist in the ter mination 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 the pipe that discharges the exhaust gasses Consequently it is possible to extend the flue system to a greater distance than that pro vided by the standard horizontal co axial flue If either an additional 45 or 90 accessory elbow is used then the maximum permissible length of Installation either pipe must be reduced by 0 90 mor 1 65 lows the flue system to be extended to a total respectively overall maximum permissible length of 10 m Referring to Fig 6 6 the minimum length required Optional 45 and 90 elbows can be used to offset for pipes a and b is 0 3 m the flue route Maximum eq
64. ting to be modified or deleted The day display H gives a flashing indication ofthe active day or group of days Press the button or the buttons G corresponding tothe day or days for which it is intended to apply the modification The corresponding 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 untilthe symbols shown in Fig 2 15 appears in the time display The new settings are memorised 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 Instructions for use To force constantly on or off the timer operation set the mode selector switch A to the TIMER posi tion The symbols shown in Fig 2 18 appears on the display O 0 0 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 pres sing the button F The time delay can be set within the following ranges 1 to 23 hours with steps of 1 hour 1 to 27 days with steps of 1
65. uivalent length a b of 40 metres Each additional elbow reduces the overall accept can be achieved utilising extensions able length of the flue system as follows 45 reduce length by 0 5 m a Bp 90 reduce length by 1 m Pluming kit Fig 6 8 Co axial 60 100mm vertical part 60mm flue outlet Flue outlet pipe a 90 1 65m 90 0 85 m O Q5 260mm 45 0 9m iie 04 z g j E 4 z Fig 6 6 Vertical roof kit Fig 6 7 Co axial 80 125 mm Fig 6 8 I This kit allows the combustion air to be sucked up 90 and expel the burnt gases directly to the outside through a telescpic co axial flue 450 950 mm In the last section the fumes are expelled through a vertical section Extensions and elbows can be added to extend a 45 0 5m the kit s length max 10 7 Maximum equivalent length a b Fig 6 8 of 15 metres can be achieved utilising extensions 0125 ul Each additional elbow reduces the overall accept Ly able length of the flue system as follows 45 60 100 mm reduce length by 0 5 m 90 45 60 100 mm reduce length by 1 m Fig 6 7 90 60 mm reduce length by 0 65 m 60 mm reduce length by 0 85 m This kit allows vertical termination of the flue pipe through the roof The kit is 1 2 min length Exten sion pieces Co axial are also available which al DA 29 2 j E
66. ut domestic hot water heat exchanger condensing heat exchanger burner exhaust fume duct and flue 12 pressurisation of the expansion tank filling up of the central heating circuit bleeding of air from the central heating system general check of the appliance s operation External cleaning Before carrying out any cleaning 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 powd ers or sponges Do not carry out cleaning of the appliance and or its parts with readily flammable substances for example petrol alcohols naphtha etc EX Operational faults If the lock out signal lamp 6 in Fig 3 2 comes on this indicates that the safety lock out has stopped the boiler To re start the boiler it is necessary to press the boiler reset button 7 Fig 3 2 h 7 Fig 3 2 For the first lighting up and following maintenance procedures for the gas supply it may be necess ary 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 function it is necessary to switch the boiler off and on from the electrical mains using the fused spur isolation switch fitted adjacent to th
67. utton 7 repeatedly 5 times until the lamps 10 give the indication as in Fig 8 10 gas type mode 2 O e Where LI DU II Fig 8 10 Atthis step itis possible to visualize the current set ting by keeping the reset button 7 pressed for more than 5 seconds The lamps 10 will flash a O Lamp OFF Lamp ON Gas conversion number of times corresponding to the setting of the knob 9 in Fig 8 11 Gas type RJP P Setting No hn P 7 NATURAL GAS Fig 8 11 Gas supply Position of knob 9 Natural gas G20 1 L P G G31 7 Fig 8 12 16 To change the setting turn the knob 9 on a posi tion corresponding to the gas used as shown in Fig 8 11 By turning the knob 9 the lock out signal lamp 6 blinks quickly 2 per seconds indicat ing that the setting has changed and must be memorised 17 To memorize the setting keep pressed the reset button 7 for about 5 seconds until the lamps 10 briefly blinks simultaneously 18 Open the gas cock 13 in Fig 8 13 PA T x wA DB Open position Fig 8 13 19 To leave the gas setting mode and normally run the boiler turn it ON by the function selector 8 Fig 8 14 on the desired operation and checking that the burner lights up uniformly In any case the boiler automatically resets to its normal operation after 10 minutes O t am Fig 8 14 20 Calibrate the gas valve ac
68. xternal temperature is 5 K must be set to 1 5 dashed line in Fig 7 9 36 C h flow temperature C K 6 K 4 K 3 80 70 60 50 40 Z 20 20 15 10 5 0 5 10 15 20 25 External temperature C Fig 7 9 The appropriate value of the coefficient K de pends on the design temperatures of the c h sys tem as the minimum external temperature 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 tem perature probe fitted To set the coefficient K 1 Turn on the electricity supply to the boiler switching on the fused spur isolation switch 2 Set the function knob 8 as illustrated in Fig 7 10 Fig 7 10 3 Keep pressed the reset button 7 for about 10 seconds until the lock out signal lamp 6 blinks 4 The lamps should give the indication as in Fig 7 11 coefficient K setting If not press the reset button repeatedly to obtain it Commissioning O were LI DU II Fig 7 11 5 Tochangethe setting turn the knob 9 on a posi tion corresponding to the desired coefficient K By turning the knob 9 the lock out signal lamp 6 blinks quickly 2 per seconds indicat ing that the setting has changed and must be memorised O Lamp OFF Lamp ON 1 5 0 5 2 5 1 Coeff K Setting No Fig 7 12 6 To memorize the setting keep pressed the reset button 7 fo
69. ystem Refer to the assembly instructions contained with in the chosen flue kit packaging for the correct as sembly and installation In general it has to be taken in consideration that the horizontal sections of the flue pipe must have an horizontal sloping not less than 1 5 deg 25 mm per metre towards the boiler In the standard horizontal flue kit Fig 6 5A 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 minimum fall of 1 5 deg 25 mm per metre over the whole length towards the boiler is ensured Choice of flue The following flue kits are available for connecting to the boiler Standard horizontal flue kit Fig 6 5A Co axial 60 100mm nominal length 1m This kitis normally supplied with the boiler 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 Maxi mum equivalent length of 10 metres can be achieved utilising extensions This flue system can 28 only be used to discharge horizontally it is not de signed to enable termination in the vertical plane Vertical kit with 90 elbow Fig 6 5B Co axial 60 100 mm Supplied with a straight flanged adapter a co axial elbow and a co axial pipe with terminal this kit allows for a ver
70. ystem both cold and hot in order to remove system and installation debris 1 Itis also sensible to initially fire and com mission the boiler before connecting any ex ternal controls such as a room thermostat By this method if you have a subsequent prob lem following the addition of an external con trol you can eliminate the boiler from your fault analysis If the boiler is fitted with a digital pro grammer when setting the times for auto matic operation remember that for every ON time there must be an OFF time to fol low and that on every occasion you enter a time you must also indicate which days that you want the boiler to follow the timed set tings 14 Some products incorporate an anti cycl ing time delay It is normal when first switch ing 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 ignition delay cycle does not prevent normal operation of the boiler to provide d h w V f you are any doubts as to the installa tion or operation ofthe boiler please read the instruction manuals thoroughly and then if necessary contact Biasi UK for advice and assistance Please remember that if you are in any doubt aboutthe installation of this product you can contact our Technical Helpline on tel 0121 506 1350 TABLE OF CONTENTS 1 Appliance description

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