Biasi 47-583-46, Service Manual

Page 1: ...300V 3035 SM 47 583 48 COMBI BOILER Leave this manual adjacent to the gas meter Warning Service repairs must be carried out only by a qualified Gas Safe Registered Engineer who will be responsible for...

Page 2: ......

Page 3: ...ent Chimney Sweep Function 31 11 4 Automatic calibration of the gas valve 32 11 5 Checks 33 11 6 Removal of the gas valve 33 12 PRIMARY CIRCUIT PRESSURE SWITCH 35 12 1 Function 35 12 2 Removal 35 13 E...

Page 4: ...vessel Fan Condensate trap Air gas mixer C H pressure relief valve Automatic air purger valve D H W heat exchanger Pump Electric actuator diverter valve D H W temperature probe Three way diverter valv...

Page 5: ...re 2 2 lift the panel and remove it Figure 2 2 Bottom view of the boiler A B B Pull the lower part of the front panel and lift it upwards Figure 2 3 Figure 2 3 C C To remove the side panels loosen the...

Page 6: ...the control panel F see section 2 3 Control panel on page 5 3 Unscrew the screw G and lift the cover H to access the electric power supply terminal block remote and external sensor Figure 2 5 Figure 2...

Page 7: ...els of the boiler 3 Loosen the central heating drain cock O Figure 2 11 until the boiler is completely emptied Figure 2 11 OPEN CLOSED O 4 To make draining easier lift the plug P of the automatic re l...

Page 8: ...hermostat flow C h temperature probe NTC Fan Safety Flue temp probe NTC thermal fuse Ignition Flame detection electrode pressure switch Primary circuit return C h temperature probe NTC D h w outlet te...

Page 9: ...rner on during C H or D H W operation only during C H operation only during D H W operation 230 Safety thermostat 5 Vdc Fan 1 2 Vdc Supply network 230 Pump 230 230 0 3 way diverter valve 24dc 65 ohm G...

Page 10: ...c b Main electronic p c b Boiler settings Control panel electr p c b Gas valve Main circuit pressure switch D H W filter Main circuit temp probe D H W temp probe By pass valve Fan air restrictor Igni...

Page 11: ...ain electronic p c b Boiler settings Control panel electr p c b Gas valve Main circuit pressure switch D H W filter Main circuit temp probe D H W temp probe By pass valve Fan air restrictor Ignition D...

Page 12: ...ier Poor C H D H W temperature 9 Poor D H W temperature Regular opera tion in C H mode 8 Low D H W flow rate Water leaks from the safety valve during op eration on C H Water leaks from the safety valv...

Page 13: ...tion of incorrect mains frequency E42 Buttons fault E44 Fault of cumulative gas valve timeout without flame E50 OT communication fault E62 Calibration request E65 System fails to control combustion an...

Page 14: ...ol Awill disappear from the display 7 By pressing key B Figure 4 1 confirmation of the inserted value is obtained The display will show the following Figure 4 6 for 5 seconds then move up to the next...

Page 15: ...ion electrode connector D 4 Disconnect the fan connector E by pressing the plastic hook placed on the side of the connector Figure 5 2 5 Unscrew the nuts F Figure 5 2 6 Remove the fan burner group G 7...

Page 16: ...s as detailed in chapter 11 3 Adjust ment Chimney Sweep Function on page 31 sec tion 11 GAS VALVE on page 31 Figure 5 4 O Caution After any periodical servicing or disturbance the combustion chamber s...

Page 17: ...e the control panel following the instructions from 4 in section 2 3 4 Remove main electronic p c b box following the instructions from 5 in section 2 4 5 Completely unscrew the Allen key screws B in...

Page 18: ...e impeller is correctly connected to the rotor shaft and that the rotor moves freely With the boiler off remove the front and right hand side case pan els lower the control panel and empty the primary...

Page 19: ...indle when the boiler operates in C H mode In both figures the relationship between the position of the actua tor and the resistance of the motor windings the motor must be disconnected from the wirin...

Page 20: ...tible to be in con tact with foods and approved by the local water Au thorities 8 5 Removal of the diverter group 1 Remove the front and both side case panels 2 Empty the primary circuit and the D H W...

Page 21: ...the fan regulating its speed The Main electronic control ignition p c b has a safety function and any incorrect interventions or tampering can result in condi tions of dangerous functioning of the boi...

Page 22: ...to an electric signal by means of temperature probes The user setting the desired temperature with the control panel p c b key or If the power requested is lower than 40 of the maximum power output th...

Page 23: ...cted menu press key B Figure 9 5 for 1 second Figure 9 7 4 To enter the selected parameter press key B Figure 9 5 for 1 second The display will show the following Figure 9 8 Figure 9 8 5 To enter the...

Page 24: ...METER DIGIT VALUES External relay operating mode 1 0 OFF 1 Zone by remote 2 Alarm P38 External relay operating mode 2 0 OFF TA2 OFF 1 Zone heat 2 TA2 active 2 EVG ext TA2 Active 3 Anomaly TA2 Active 4...

Page 25: ...move the Main electronic control ignition p c b Figure 9 11 D E 7 Re assemble the Main electronic control ignition p c b fol lowing the removal procedures in the reverse order Important When re assemb...

Page 26: ...cels lock Is fan rpm exact YES Is flue temperature higher than 110 C YES NO beginning of wait period End of wait period YES NO YES starts ignition discharges Opens gas valve beginning of ignition peri...

Page 27: ...ck Is fan rpm exact NO YES Is flue temperature higher than 110 C YES NO beginning of wait period flame presence End of wait period YES NO YES starts ignition discharges Opens gas valve beginning of ig...

Page 28: ...present Flashing drain upon ignition in progress A Stays on maintenance due pre warning Flashing maintenance required or maintenance due b Stays on lockout error The boiler can be restarted by the use...

Page 29: ...oltage low E99 Card not configured L1 Primary limitation in D H W mode Boiler stand by the dashes light up in sequence to simulate a scrolling motion antifreeze protection activated When powering ON t...

Page 30: ...2 1 4 The following is displayed LP minimum D H W hP minimum output in heating mode cP maximum output in heating mode dP maximum D H W The transition occurs with buttons A increase and D decrease D H...

Page 31: ...D Figure 11 2 of the Gas valve and connect a pressure gauge using a suitable hose 4 Open the gas inlet valve 5 Read the inlet pressure value and ensure that it is within the limits given in the table...

Page 32: ...ler has a correct CO2 reading in LP but is incorrect CO2 in dP before adjusting the boiler ensure the supply pressure is within accept able limits Figure 11 8 21 Allow the analyser to give a stable re...

Page 33: ...ors coils 1 Remove the front panel of the case 2 Disconnect the electrical connector C Figure 11 2 3 Measure the electrical resistance between the connector pins of the on off operators as illustrated...

Page 34: ...sing the flue analyser as described in section 11 3 Adjustment Chimney Sweep Function on page 31 After any service operation on the components of the gas circuit check all the connections for gas leak...

Page 35: ...s manual has occurred 12 2 Removal Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent 1 Remove the front and right hand side panels of the case tu...

Page 36: ...pressure gauge Figure 13 2 B 3 Check the pre load pressure and refer to the section Expan sion vessel in the User manual and installation instructions for the correct value 13 3 Removal of the expans...

Page 37: ...gure 14 2 1 3 4 2 Figure 14 3 5 14 3 Removal of the sensor Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent Figure 14 4 B 1 Remove the front pan...

Page 38: ...or compo nent 1 Please remove the sensor first as previously described and ensure it remains dry 2 Remove the front panel of the case and empty the D H W circuit 3 Remove the sensor holder E and unsc...

Page 39: ...t A B C 15 2 Checks Temperature resistance relationship Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent Disconnect the cable from the Temperatu...

Page 40: ...trici ty supply before removing any covering or compo nent 1 Remove the front panel of the case and lower the control panel 2 Empty the D H W circuit of the boiler 3 Remove the electric connector G Fi...

Page 41: ...group Figure 16 1 A 16 2 Removal Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent 1 Remove all the case panels 2 Empty the primary circuit of t...

Page 42: ...ss and emptying hydraulic circuits on page 5 3 Unscrew the gas connector D and remove the gas pipe E Figure 17 2 4 Disconnect the connectors C 5 Unscrew the nuts F 6 Remove the fan A with the air box...

Page 43: ...el by sliding it forward Figure 18 3 3 Assemble the new front insulation carrying out the removal operation in reverse order When fitting the new panel ensure that the electrode hole coincide with the...

Page 44: ...light a possible cause is a faulty spark generator and it is advisable to replace it to locate the fault Check the position of the electrode edges Warning isolate the boiler from the mains electrici t...

Page 45: ...earing contact lenses Irritation to respiratory tract Precautions Dust goggles will protect eyes People with a histo ry of skin complaints may be particularly susceptible to irritation High dust level...

Page 46: ...ntervention of this safety device the heat exchanger part shown in Figure 19 3 may be damaged and must be re placed Figure 19 3 19 2 Removal Warning isolate the boiler from the mains electrici ty supp...

Page 47: ...E NTC AND SAFETY THERMAL FUSE Figure 19 4 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 10500 11000 11500 12000 12500 20 25 30 35 40 45 50 55 60 6...

Page 48: ...he condensate drain pipe A Figure 20 2 does not require any particular maintenance but just check 1 That no solid deposits have formed if so remove them 2 That the condensate drain piping is not clogg...

Page 49: ...H W heat exchanger mod M300V 2025 SM 1 BI1001 101 D H W heat exchanger mod M300V 2530 SM M300V 3035 SM 1 BI1001 102 9 Motor pump 1 BI2112 103 10 Pump 1 BI2112 104 11 D H W temperature probe NTC 1 BI1...

Page 50: ...50 SHORT SPARE PARTS LIST 6 2 3 4 7 8 10 9 11 12 18 19 20 21 13 14 15 16 17 1 5 Figure 21 1...

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Page 52: ...Biasi UK Ltd Commercial Road Leamore Enterprise Park WALSALL WS2 7NQ Sales Tel 01922 714600 Tech Service Tel 01922 714636 www biasi co uk 1796234660 17962 3466 0 4221 52A4 UK...