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Biasi M275V.2024 SM, Руководство по обслуживанию

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- 19 -

THREE WAY DIVERTER VALVE

 

Warning: to lubricate the O-ring gaskets exclusively 

use a silicone base grease compatible 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. circuit of the boiler.
3  Remove the electric actuator (section "8.3 Removal of the 

electric actuator" on page 18).

4  Disconnect D.H.W. temperature probe NTC "7" (Figure 8.6).
5 

Unscrew the connector "8" (Figure 8.6), the C.H. flow con

-

nector and the D.H.W. outlet connector.

6  Remove the D.H.W. heat exchanger (see "6.2 Removal" on 

page 16).

7  Unscrew the screws "9" and remove the diverter group.

Figure 8 .6

7 

 

8 

 

9 

 

8  Reassemble the diverter group carrying out the removal op-

erations in the reverse order.

 

Warning: to lubricate the O-ring gaskets exclusively 

use a silicone base grease compatible to be in con-

tact with foods and approved by the local water Au-

thorities .

Содержание M275V.2024 SM

Страница 1: ...3 50 BASICA COND 32C M275V 2832 SM 47 583 51 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 respon...

Страница 2: ......

Страница 3: ...28 11 GAS VALVE 30 11 1 Function 30 11 2 Description of the parts 30 11 3 Adjustment Chimney Sweep Function 30 11 4 Checks 32 11 5 Removal of the gas valve 32 12 PRIMARY CIRCUIT PRESSURE SWITCH 34 12...

Страница 4: ...Burner Expansion 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...

Страница 5: ...e 2 2 lift the panel and remove it Figure 2 2 Bottom view of the boiler 6 7 7 Pull the lower part of the front panel and lift it upwards Figure 2 3 Figure 2 3 8 8 To remove the side panels loosen the...

Страница 6: ...rol panel 11 see section 2 3 Control panel on page 5 3 Unscrew the screw 12 and lift the cover 13 to access the electric power supply terminal block remote and external sensor Figure 2 5 Figure 2 5 11...

Страница 7: ...ls of the boiler 3 Loosen the central heating drain cock 20 Figure 2 11 until the boiler is completely emptied Figure 2 11 OPEN CLOSED 20 4 To make draining easier lift the plug 21 of the automatic re...

Страница 8: ...y gy wh wh wh wh wh bu bu bu bk bk bk bk rd rd rd rd rd rd bk wh wh bk bn brown bu blue bk black wh white rd red gy grey gn green ye yellow vt violet og orange gnye green yellow rdwh red white Electri...

Страница 9: ...ltages or frequency with burner on during c h or d h w operation only during c h operation only during d h w operation 230 Fan 1 2 Vdc Main circuit Supply network 230 Pump Gas valve 33 200 Hz 0 32 Hz...

Страница 10: ...nic p 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...

Страница 11: ...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...

Страница 12: ...ed but pressure is lower than the minimum pressure for boiler filling E58 Filling function of C H water completed but pressure is higher than the maximum pres sure for boiler filling Next maintenance...

Страница 13: ...g keys D or E Figure 4 3 it is possible to modify the value of parameter A51 from 1 to 52 weeks 52 1 year 8 Press A or B Figure 4 3 to confirm the value entered and return to the list of parameters Fi...

Страница 14: ...the detection ignition electrode connector 4 4 Disconnect the fan connector 5 by pressing the plastic hook placed on the side of the connector Figure 5 2 5 Unscrew the nuts 6 Figure 5 2 6 Remove the f...

Страница 15: ...sary to undertake a com bustion analysis as detailed in chapter 11 3 Adjust ment Chimney Sweep Function on page 30 Figure 5 4 15 Caution After any periodical servicing or disturbance the combustion ch...

Страница 16: ...emove 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 2...

Страница 17: ...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...

Страница 18: ...Figure 8 3 2 Spindle inside C H mode 8 3 Removal of the electric actuator Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent 1 Remove the front c...

Страница 19: ...3 Removal of the electric actuator on page 18 4 Disconnect D H W temperature probe NTC 7 Figure 8 6 5 Unscrew the connector 8 Figure 8 6 the C H flow con nector and the D H W outlet connector 6 Remove...

Страница 20: ...ns ignition cy cle which lead to the ignition of the gas at the burner It checks the presence of the flame during the entire period in which it is activated and supplies the fan regulating its speed T...

Страница 21: ...ctor safety thermal fuse 14 Connector D H W flow switch 15 Connector 3 way diverter valve 16 Fuse F1 3 15 AF 9 3 Checking the temperature The Main electronic control ignition p c b makes it possible t...

Страница 22: ...the various boiler control function modes hereafter named parameters by using the keys of the control panel p c b 1 To enter in the parameters setting mode press at the same time the 2 keys F and G F...

Страница 23: ...gure 9 5 it is possible to modify the value of parameter A01 Figure 9 15 00 Natural gas G20 01 Propane gas LPG G31 Figure 9 15 bar RESET 13 Press A or B Figure 9 5 to confirm the value entered and ret...

Страница 24: ...out four complete ignition cycles and then after about 4 minutes goes to lock out state Switch off and on the electricity supply to the boiler by means of the fused spur isolation switch the device m...

Страница 25: ...NIC CONTROL IGNITION P C B Warning After cleaning or replacement as detailed above it is deemed necessary to undertake a com bustion analysis as detailed in section 11 3 Adjust ment Chimney Sweep Func...

Страница 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...

Страница 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...

Страница 28: ...insufficient sys tem pressure E05 Fan control anomaly LCD FUNCTION E06 Heating NTC probe failure E07 DHW NTC probe failure E08 External NTC probe failure E09 Flue gas NTC probe failure interruption E1...

Страница 29: ...eating anti freeze phase the symbol flashes Heating set temperature all other symbols are disabled DHW set temperature all other symbols are disabled Boiler in chimney sweep function To activate the c...

Страница 30: ...Inlet Pressure Test Point 3 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...

Страница 31: ...ype gas CO2 value range COND 24C COND 28C COND 32C Natural G20 8 2 8 8 Propane G31 9 4 10 0 If the boiler starts up as expected it is already with in the limits indicated move on to checking the maxim...

Страница 32: ...mains electrici ty supply before removing any covering or compo nent Check the on off operators coils 1 Remove the front panel of the case 2 Disconnect the electrical connector 2 Figure 11 2 3 Measur...

Страница 33: ...e using the flue analyser as described in section 11 3 Adjustment Chimney Sweep Function on page 30 After any service operation on the components of the gas circuit check all the connections for gas l...

Страница 34: ...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...

Страница 35: ...pressure gauge Figure 13 2 2 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...

Страница 36: ...gure 14 2 2 4 5 3 Figure 14 3 6 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 7 1 Remove the front pan...

Страница 37: ...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 10 and unsc...

Страница 38: ...Warning isolate the boiler from the mains electrici ty supply before removing any covering or compo nent Disconnect the cable from the Temperature probe Measure the temperature of the pipe 3 only NTC...

Страница 39: ...39 TEMPERATURE PROBE Warning to lubricate the O ring gaskets exclusively use a silicone base grease compatible to be in con tact with foods and approved by the local water Au thorities Figure 15 4 5 2...

Страница 40: ...group Figure 16 1 1 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...

Страница 41: ...ss and emptying hydraulic circuits on page 5 3 Unscrew the gas connector 3 and remove the gas pipe 4 Figure 17 2 4 Disconnect the connectors 6 5 Unscrew the nuts 5 6 Remove the fan 1 with the air box...

Страница 42: ...ew sealing gasket must be used during refitting of the electrodes on all occasions of re moval 18 3 Removal of the front insulation panel See warning note at the end of this chapter before to remove t...

Страница 43: ...move this part Attention Cover the inner of the condensing heat exchanger to avoid that dirt and debris fall in the coil 1 Do the operations of section 18 4 Removal of the burner on page 42 from step...

Страница 44: ...art Warning Insulation panels material handling care Mineral fibres are used in this appliance for the insulation panels of the combustion chamber Excessive exposure to these materials may cause tempo...

Страница 45: ...eat 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 supply before removing any covering or comp...

Страница 46: ...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...

Страница 47: ...trap The condensate drain pipe 1 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...

Страница 48: ...ctronic control p c b 1 BI2605 113 8 D H W heat exchanger mod M275V 2024 SM 1 BI1181 122 D H W heat exchanger mod M275V 2428 SM M275V 2832 SM 1 BI1001 102 9 Motor pump 1 BI2112 103 10 Pump 1 BI2112 10...

Страница 49: ...49 SHORT SPARE PARTS LIST 6 2 3 4 7 8 10 9 11 12 18 19 20 13 14 15 16 17 1 5 Figure 21 1...

Страница 50: ...50 NOTE...

Страница 51: ......

Страница 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 1796234850 17962 3485 0 1622 52A4 UK 21 04 2022 N...

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