Sime Murelle 25 BF Installer'S Instructions Download Page 27 | Manualshive

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5.3

HEAT EXCHANGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.4

RE-ASSEMBLY

5.5

RE-COMMISSIONING

6

FAULT FINDING

6.1

EARTH CONTINUITY CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.2

SHORT CIRCUIT CHECK

6.3

POLARITY CHECK

6.4

RESISTANCE TO EARTH CHECK

6.5

FAULT FINDING LEDS

6.6

C.H. MODE - FAULT FINDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.7

D.H.W. MODE - FAULT FINDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7

INTERNAL WIRING DIAGRAMS AND VIEWS

7.1

FUNCTIONAL FLOW WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7.2

INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8

REPLACEMENT OF PARTS

8.1

HEAT EXCHANGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8.2

COMBUSTION CHAMBER INSULATION

8.3

FAN ASSEMBLY

8.4

MAIN BURNER

8.5

IGNITION/DETECTION ELECTRODE

8.6

GAS VALVE

8.7

AIR PRESSURE SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.8

OVERHEAT THERMOSTAT

8.9

THERMISTOR

8.10

DRIVER PCB

8.11

PUMP MOTOR

8.12

D.H.W. HEAT EXCHANGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.13

DIVERTOR VALVE - COMPLETE

8.14

DIVERTOR VALVE - MICROSWITCH ASSEMBLY

8.15

C.H. EXPANSION VESSEL

8.16

THERMOHYDROMETER

8.17

SAFETY VALVE

8.18

AUTOMATIC AIR VENT

8.19

TIME CLOCK

9

SHORT LIST OF PARTS

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Summary of Contents for Murelle 25 BF

Page 1: ...pipe for the outlet of the products of the combustion is unobstructed and has been pro perly installed Make sure that any shutoff valves are open Make sure that the system is charged with water and i...

Page 2: ...h electronic ignition and modulation natural draught FORMAT 25 BF 30 BF with electronic ignition and modulation room sealed forced draught The instructions given in this manual are provided to ensure...

Page 3: ...1 1 CH setting range C 40 80 40 80 40 80 40 80 D H W setting range C 40 60 40 60 40 60 40 60 D H W flow rate EN 625 l min 10 5 12 7 10 5 12 7 Continuous D H W flow rate t 30 C l min 11 1 13 6 11 1 13...

Page 4: ...r 16 Automatic by pass 17 D H W filter 18 C H return cock optional 19 C H flow cock optional 20 D H W cock optional 21 Gas cock optional 22 Fixing jig 23 Limit stat 24 C H water filter 1 5 MAIN COMPON...

Page 5: ...her makes optional The kit code 8093900 is supplied comple te with mounting instructions 2 3 CONNECTING UP SYSTEM Before proceeding to connect up the boiler you are recommended to make the air cir cul...

Page 6: ...ation or smokes coo ling in particular if located outside the building or in unheated ambiences Be set at an adequate distance from combustible or easily inflammable mate rial by means of an air gap o...

Page 7: ...code 8084805 2 a Extension L 1000 code 8096100 2 b Extension L 500 code 8096101 3 Vertical extension L 200 with take off point code 8086908 4 Supplementaty 90 elbow code 8095800 TABLE 1 Siting of term...

Page 8: ...mm H2O vers 25 and 11 00 mm H2O vers 30 For head losses in the fittings refer to Table 2 79 TABLE 2 Accessories 80 Head loss mm H2O 25 version 30 version Inlet Outlet Roof outlet Inlet Outlet Roof out...

Page 9: ...xceed 7 00 mm H2O 25 vers and 11 00 mm H2O 30 vers When calculating the lengths of pipe take into account the parameters given in the Table 2 80 Fig 13 120 80 160 KEY 1 Sponge rubber gasket 125 95 2 F...

Page 10: ...the front casing panel and the two screws holding the control panel to the sides see point 4 7 The panel will tilt forward at a sufficient angle to allow access to the components To remove the protect...

Page 11: ...EV2 Gas valve coil EA Ignition electrode ER Sensing electrode A SIT 503 control box TS 100 C safety stat TF Smoke stat PA Water pressure switch P Circulation pump VP Divertor valve TAG Antifreeze sta...

Page 12: ...nals 22 23 2 10 5 25 OF 30 OF wiring diagram with HONEYWELL control box Fig 20 b KEY EV1 Gas valve coil EV2 Gas valve coil EA Ignition electrode ER Sensing electrode A HONEYWELL S4565CF control box TS...

Page 13: ...temperature set on the potentio meter The adjustment range is between 40 and 60 C When the heating flow sensor is at 75 C the electronic limiter will trip and switch off the burner The burner will re...

Page 14: ...uent re ignition will depend on a tempe rature difference of 3 C detected by the SM sensor heating flow sensor ATTENTION It is essential that the opera tions described above be carried out by authoriz...

Page 15: ...KE SAFETY DEVICE This is a safety device against possible smoke emission into the ambience 9 fig 3 The safety device goes into action by blocking operation of the gas valve when the return of the smok...

Page 16: ...ettore TA 22 23 L N TA TA1 P R P1 R1 CIRCUITO CON VALVOLE DI ZONA CIRCUITO CON POMPE DI ZONA Fig 26 KEY TA TA1 Zone room stat VZ VZ1 Zone gas valve R R1 Zone relay CR CR1 Zone microvalve or relay cont...

Page 17: ...sures at the maximum and mini mum values are factory set Consequently they must not be altered Only when you switch the appliance from one type of gas supply methane to another butane or propane it is...

Page 18: ...modulator With the hot water potentiometer knob set to the maximum the hot water tap turned on and the burner lit hold nut 3 locked in place and simulta neously turn nut 2 using a fixed 7 wrench to id...

Page 19: ...t of the boiler Unscrew the connection 1 and the lock nut 5 Remove the bracket and the expansion vessel 4 NOTE Before refilling the system using a pressure gauge attached to the valve 3 make sure that...

Page 20: ...t The modulator has a break in winding replace it Check that the current to the modulator complies with the specifications The electronic card is faulty replace it Main burner fails to start in D H W...

Page 21: ...ure that the requi red temperature is kept constant With the rotary switch in the winter position once the boiler has reached the value set on the heating potentiome ter it will start to modulate in a...

Page 22: ...entive maintenance and checking of the efficient operation of the equipment and safety devices must be carried out exclusively by the authorized technical staff The boiler is supplied with an electric...

Page 23: ...the clock display together with an indication of the incorrect program me To cancel all the programmes move the selector to the P position and press buttons 3 and 5 simultaneously Setting the SKIP fun...

Page 24: ...Format C installation and servicing instructions...

Page 25: ...the system and boiler full of water and the correct pressure showing on the pressure gauge Is the Auto Air Vent open Has the pump been rotated manually Is the gas supply working pressure correct Is th...

Page 26: ...7 3 INSTALLING THE BOILER 3 1 UNPACKING THE BOILER 8 3 2 FIXING THE WALL MOUNTING BRACKET 3 3 HANGING THE BOILER 3 4 FLUE AND TERMINAL PREPARATION 3 5 FLUE AND TERMINAL INSTALLATION 10 3 6 SEPARATE D...

Page 27: ...ING DIAGRAM 20 7 2 INTERNAL VIEW 21 8 REPLACEMENT OF PARTS 8 1 HEAT EXCHANGER 22 8 2 COMBUSTION CHAMBER INSULATION 8 3 FAN ASSEMBLY 8 4 MAIN BURNER 8 5 IGNITION DETECTION ELECTRODE 8 6 GAS VALVE 8 7 A...

Page 28: ...th sealed primary water sys tems and is supplied fully assembled and equipped with com plete valve packs If the wall thickness is less than 0 5 m 19 in the appliance can be installed from inside the r...

Page 29: ...000 4 1 1 7 14 1 48 000 18 2 62 000 5 2 2 1 X 15 9 54 000 20 3 69 000 6 3 2 5 17 7 60 000 22 4 76 000 7 5 3 0 19 6 67 000 24 5 84 000 8 9 3 6 21 5 73 000 26 6 90 000 10 3 4 1 23 4 80 000 28 7 98 000 1...

Page 30: ...capacity l gal 3 4 0 75 4 7 1 00 Minimum water flow D H W l min gal min 2 0 5 2 0 5 D H W flow rate at a temperature rise of 30 C l min gal min 11 2 2 5 13 8 3 0 35 C l min gal min 9 6 2 1 11 9 2 6 St...

Page 31: ...current I E E Wiring Regula tions BS 7671 and in Scotland the electrical provisions of the Building Regulations applicable in Scotland A compartment used to enclose the appliance MUST be designed and...

Page 32: ...be suitable for mains voltage Wiring should be in 3 core PVC insulated cable NOT LESS than 0 75 mm2 24 x 0 2 mm to BS6500 Table 16 Wiring external to the boiler MUST be in accordance with current l E...

Page 33: ...uld be fitted as shown above Take note of the requirements relative to container capacity height above system inclusion of a non return valve stop cock and automatic air vent in the feed pipe as shown...

Page 34: ...nection The final 600 mm 24 in of the mains supply pipe to the boiler must be copper A maximum D H W flow rate of 10 3 l m 2 3 gpm for FORMAT 80 C 13 l m 2 9 gpm for FORMAT 100 C is recommended Higher...

Page 35: ...nd the flue air duct hole on the appropriate wall s Remove the template s and drill the two fixing holes using a 10 mm masonry drill Fit the plastic plugs provided Cut the hole in the wall for the flu...

Page 36: ...ir duct larger duct and starting at the formed end mark off the length to be cut which is the wall thick ness X the clearance Y plus 145 mm 5 3 4 in for the FORMAT 80 C model and 170 mm 6 3 4 in for t...

Page 37: ...4 in Push the flue duct assembly into the air duct until it stops against the terminal From inside or outside the building slide the duct assem bly into the wall until the sealing ring forms a good s...

Page 38: ...s Part No 8089904 is supplied for this purpose The sectored diaphragm is to be used according to the max imum head loss allowed in both pipes as given in fig 14 11 Example of allowable installation ca...

Page 39: ...ig 14 Fig 16 a b 5 IMPORTANT The three housings on the diaphragm permit assembly of the air intake in one position only Model FORMAT 100 C N segments Total load loss to remove mm H2O Pa n 1 0 1 0 9 8...

Page 40: ...inlet connection using a suitable jointing compound Connect the gas supply pipe 3 9 SAFETY VALVE CONNECTION The appliance safety valve is located towards the R H S of the boiler and the discharge pipe...

Page 41: ...If the burner pressure is low check that the appliance has not begun to modulate this will occur if the D H W flow rate is low If modulation is suspected open all D H W taps to maximise flow and rech...

Page 42: ...or valve until a D H W temperature rise of approx 35 C is achieved This corresponds to the flowrates shown in Table 4 turn off the tap remove the pressure gauge and refit the sealing screw Remember th...

Page 43: ...ews Inspect and if necessary clean the injectors electrodes and the main burner bars 5 2 FAN ASSEMBLY Disconnect the electrical connections to the fan Note the position of the earth conductor Remove t...

Page 44: ...race the faulty component It is possible that a fault could occur as a result of local burning arcing but no fault could be found under test However a detailed visual inspection should reveal evi denc...

Page 45: ...spark now Turn the clock in the right position Close room thermostat contact Replace the fan Is there voltage available to the pump Replace the clock Check pump connection Is pump shaft free to rotat...

Page 46: ...ailable at the fan terminals Replace the PCB Replace the pump Replace the divertor valve Replace the fan Clean or replace filter at inlet of hydraulic group Has the PCB ignition locked out after 10 se...

Page 47: ...y thermostat OP Time clock PF Air pressure switch V Fan PI Circulating pump VP Divertor valve C Rotary switch TA Room thermostat FL Flow water switch M Modulator SM C H sensor F1 Fuse 1 6 AT TR Transf...

Page 48: ...2 Ignition transformer 3 Combustion chamber 4 Fan 5 Combustion analysis intakes 6 Negative pressure intake 7 Positive pressure intake 8 Smoke pressure switch 9 C H sensor SM 10 Main exchanger 11 100...

Page 49: ...tion 5 1 Disconnect the electrical connections and the pressure sensing pipes to the fan Note the position of the earth conductor Unscrew the three screws securing the fan Drop and tilt the fan forwar...

Page 50: ...connections one at a time to ensure that they are not incorrectly re fitted to the new switch Re assemble in reverse order referring to the wiring dia grams section 7 if necessary Ensure that the pres...

Page 51: ...nel as described in section 5 1 Isolate the C H flow and return valves 17 18 fig 2 and drain the appliance through the drain plug 13 fig 2 Unscrew the expansion vessel union on the C H return pipe If...

Page 52: ...8 Overheat thermostat 1 6146701 9 a D H W heat exchanger 80 C 1 6281508 9 b D H W heat exchanger 100 C 1 6281522 10 a Heat exchanger 80 C 1 6174230 10 b Heat exchanger 100 C 1 6174231 11 a Fan assemb...

Page 53: ...26...

Page 54: ...d in depth technical training courses FREE LUNCH Certificate on completion of the course Please fill in the form below for more details Combination Boilers Name Address Postcode Tel No Company Please...

Page 55: ...n g p ro d u c t s u k l t d Jubilee Works Middlecroft Road Staveley Chesterfield Derbyshire S 43 3XN Tel 01246 471950 Fax 01246 281822 For service enquiries and boiler faults contact our service comp...

Page 56: ...19 20 21 18 25 98 24 22 23 6 63 1 65 64 81 26 31 13 30 33 32 16 36 29 28 27 93 92 34 99 14 7 15 17 8 11 94 95 75 96 87 73 85 97 80 78 86 79 77 76 78 83 84 82 72 12 69 70 67 68 71 9 10 90 52 48 88 45 3...

Page 57: ...8 6287900 Air smoke manifold 19 6147406 Air smoke manifold plug M14x1 5 20 6226417 O ring 3043 21 6242602 Air smoke manifold screw 22 6248803 Lip seal for 60 pipe 23 6028706 Air smoke manifold gasket...

Page 58: ...rol panel cable cover 84 6290200 Room stat connection cover 85 6290100 Knob 40 86 6009585 Control panel bracket 87 6290001 Flap door 80C 87 A 6290002 Flap door 100C 88 6131401 Microswitch for flowmete...

Page 59: ...stock parts Componenti da tenere a scorta POSITION CODE DESCRIPTION MODEL NOTE 6281507 Split pin kit for hydraulic group 5185403 Convers kit to the nat gas 25 30 kW 5187307 Technyl hydraulic group Pro...

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