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Saunier Duval ISOMAX F 28 E, Installation And Operating Instructions Manual

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Saunier Duval ISOMAX F 28 E Installation And Operating Instructions Manual Download Page 31

31

FAULT FINDING

List of fault codes

Code

Fault

Additional display

information

00

No fault

02

Air flow fault

04

Ignition fault -flame detection

05

Overheating

06

Central heating thermistor/wiring fault

07

Domestic hot water thermistor/wiring fault

08

Storage vessel thermistor/wiring fault

09

System pressure sensor fault

10

Fan fault

11

Pump blockage

12

User interface fault

13

Main PCB fault

14

CTN2 > 97

°

C - pump will run

15

Gas mechanism fault

20

Communication fault

Summary of Contents for ISOMAX F 28 E

Page 1: ...1 THIS IS A CAT I2E APPLIANCE 01773 828100 IN WARRANTY TECHNICAL HELPLINE 01773 828400 ISOMAX...

Page 2: ...installation 9 10 Boiler location 11 Boiler installation 12 Flue installation 12 13 Electrical installation 14 Commissioning 15 18 Safety devices 18 19 Settings 20 USERS SECTION Mandatory warning for...

Page 3: ...ends etc For further information contact your supplier Substances Hazardous to Health The adhesives and sealants used in this appliance are cured and give no known hazard in this state INSULATION PADS...

Page 4: ...ure that The boiler is connected to the electrical supply The gas service cock is open Then follow the instructions below Press the On Off button 1 Hab 264 1 1 The pressure must be between 1 and 2 bar...

Page 5: ...ctrical supplies are left connected The frost protection device will light the boiler when the temperature of the boiler water falls below 6 C When the temperature reaches 16 C the boiler stops Note T...

Page 6: ...automatically variable from 10 4 kW to 27 6 kW from 35 484 BTU H to 94 170 BTU H Storage capacity 43 l Maximum hot water temperature 60 C Minimum hot water temperature 37 C Specific flow rate for 30...

Page 7: ...y air pockets and facilitate permanent venting of the installation Bleed fittings must be provided at every high point of the system and on all radia tors The total volume of water permitted for the h...

Page 8: ...estic heat exchanger 18 Heating pump 19 Heating expansion vessel 20 Heating thermistor 21 Overheat safety thermostat 22 Flame sensor electrode 23 Fan 24 Domestic safety valve 6 bar 25 Loss of water se...

Page 9: ...e diam 15mm Water connection Connect the copper connections supplied to the fixing jig fittings see diagram 7 Connect the sys Sch 173a Diagram 8 tem pipework to the boiler observing the correct flow a...

Page 10: ...y using the mixing valve supplied to provide hot water at boiler hot water set temperature to one tap and thermostatically controlled hot water to another tap s To pipe the hot water supply using the...

Page 11: ...tions with internal and external access use a 10 5 mm diameter core drill For installations with internal access only use a 125 mm diameter core drill Important When cutting the flue hole and when ext...

Page 12: ...5 mm to inner pipe measurement Calculation of cutting lengths when flueing to the right or left Measure wall thickness e mm see diagram 11 For right hand applications Measure distance from inside face...

Page 13: ...olar onto D and press down to lock into position Secure clips with screws provided Important If the flue has been cut ensure that there are no burrs that could damage the O ring For flue systems less...

Page 14: ...g This appliance must be wired in accord ance with these instructions Any fault arising from incorrect wiring cannot be put right under the terms of the Saunier Duval guarantee External controls The I...

Page 15: ...d that any air is purged from the supply at the gas inlet test point on the gas valve see diagram 18 Filling the system 4 I O 0 0 bar 1 L afficheur indique 0 bar de pression et clignote Le t moin lumi...

Page 16: ...2 bar Re fill system as necessary I O 1 5 bar mode Hab 265 8 5 7 6 Bleed each radiator to re move the air re tighten bleed screws Open various hot water taps to bleed system Leave the cap on the pump...

Page 17: ...o 87 C Visual indication of set temperature Lighting the boiler Press the mode button to select the winter symbol 1 3 2 Adjust heating temperature to maximum Check that any external controls if fitted...

Page 18: ...75 060 24 81 890 26 88 710 28 95 540 Setting the maximum heating temperature The maximum heating temperature can be preset at commissioning stage to suit the type of heating system For example for us...

Page 19: ...the fault has been cleared Overheat safety In case of boiler overheating the overheat ther mostat will turn the boiler off The thermostat lo cated on the heat exchanger flow pipe will need to be manu...

Page 20: ...alve coil Remove the protective cover from the gas valve adjuster Turn nut B see diagram 23 CLOCKWISE To increase the pressure ANTICLOCKWISE To decrease the pressure After adjustment refit the cover t...

Page 21: ...rew the three screws securing combustion chamber cover to combustion chamber see dia gram 2 Remove combustion chamber cover from boiler Undo but do not remove two burner support screws at rear of burn...

Page 22: ...ure that all joints are properly connected Cold water inlet filter Drain down hot water circuit of boiler only as fol lows Close isolating valve throttle m on cold water isolating cock see diagram 3 N...

Page 23: ...and restore electrical supply Open gas cock operate boiler and re check all joints for soundness To replace fan Remove fan as described in Routine Cleaning and Inspection Fit replacement fan in rever...

Page 24: ...valve head Pull out slotted metal clip from valve body and remove valve head from body Fit replacement valve head in reverse order to removal Note 1 When refiting clip ensure that letters OK are as sh...

Page 25: ...ram 9 Undo two screws securing modulating coil to gas valve and remove coil Diagram 9 Fit replacement coil in reverse order to removal Refit electrical connections in reverse order to re moval the pol...

Page 26: ...injector size marked on each injector is the same as that given in Technical Data for the type of gas being used Reassemble burner and fit into boiler in reverse order to removal To replace ignition...

Page 27: ...exchanger 18 Heating pump A B C D E D1 D1 D1 D2 D1 D3 2 3 6 4 26 7 5 8 9 1 12 13 10 28 15 14 16 18 17 19 20 22 21 23 11 25 24 27 19 Heating expansion vessel 20 Heating thermistor 21 Overheat safety th...

Page 28: ...ctor 1 20 mm Inlet pressure 20 mbar Maxi Burner pressure 13 8 mbar Mini Burner pressure 2 16 mbar Gas rate maximum 3 20 m3 h Gas rate minimum 1 32 m3 h Heating Hot water output automatically variable...

Page 29: ...de CTN1 hot water thermistor CTN2 heating thermistor CTN3 accumulator thermistor K4 overheating safety Pr air pressure switch Ex fan accessories Opt option card CD remote control SE external sensor HL...

Page 30: ...t area To carry out the electrical test gain access to the main Printed Circuit Board PCB as described pre viously and measure the voltages according to table 1 The ISOFAST has an on board fault diagn...

Page 31: ...detection 05 Overheating 06 Central heating thermistor wiring fault 07 Domestic hot water thermistor wiring fault 08 Storage vessel thermistor wiring fault 09 System pressure sensor fault 10 Fan fault...

Page 32: ...bar between 93 and 143 SPARE PARTS When ordering spare parts quote the part number and description stating the appliance model number and serial number from the data badge Short parts list No Descrip...

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