Ariston 47-116-15 Removing the combustion cover, Removing the burner and jets

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1.3ACCESS TO THE COMBUSTION CHAMBER

Removing the combustion cover

1.Remove the screws “E” (FIG. 1.10);

2.Lift off the combustion cover.

E

E

 

E

99.tif

FIG. 1.10

Removing the burner and jets

1.Remove the screws “F” from the burner (FIG. 1.11);

2.Remove the burner (FIG. 1.12);

3.Remove the jets using a No. 7 socket spanner;

4.Replace in reverse order.

FIG. 1.11

F

F

12 eps

 

 

 

 

 

 

 

 

 

78 eps

Fig. 1.12

 

 

 

 

 

Removing the electrodes

Before carrying out this procedure, unscrew and slide the burner forward (see previous section).

1.Remove rubber gasket “G” (Fig. 1.13);

2.To remove the detection electrode disconnect the cable at its connection point close to the P.C.B. (Fig. 1.14);

FIG. 1.13

G

49 eps

50 eps

FIG. 1.14

B063

5

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Contents Installation Instructions Type C Boilers Table of Contents General Information Overall View Installation Overall Dimensions Supply must be fused at 3 a Domestic Water Kent TN9 1RA Morley RoadTonbridge 80 mm Systems Restrictor Extension Piping not insulated Piping insulatedRestrictor No Restrictor Extension Piping not insulated Piping insulatedCalculating the lengths of the pipes, Electrical Diagram Central Heating Return Commissioning Control Panel Initial START-UP Operational Adjustments Status ANTI-FROST Device Methane Liquid Gas Butane GAS AdjustmentsG20 Gas G30 16.0Maintenance Boiler MiscellaneousProgrammer Manufacturer Merloni TermoSanitari SpA Italy Technical Service Hot Line 01494Technical Information Servicing Instructions Type C Boilers Fault Finding Removing the front panel Servicing InstructionsRemoving the side panels Removing the sealed chamber frontal coverRemoving the electrodes Removing the combustion coverRemoving the burner and jets Removing the main heat exchanger Removing the fan Removing the air pressure switchSetting the minimum and the maximum power of the boiler Setting the gas pressuresSetting the maximum heating circuit power Setting pressure for soft ignitionRegulating the heating power for Propane gas G31 Regulating the heating power for Natural gas G20Regulating the heating power for Butane gas G30 Removing the spark generator Removing the D.H.W. secondary exchanger Removing the gas valveRemoving the automatic air vent Removing the safety valveRemoving the main circuit flow switch Removing the pump Removing the expansion vessel Removing the pressure gaugeRemoving the heating temperature sensor N.T.C Removing the D.H.W. temperature sensor N.T.CRemoving the D.H.W. flow switch Removing the overheat thermostatRemoving the time clock Checking the fusesRemoving the P.C.B Finding diagrams described in this chapter Fault FindingYES YES ∆ P 1.2 mbar YES Electrical Diagrams MicroGENUS 23/27 Mffi MicroGENUS 23/27 Mffi Ariston Page Manufacturer Merloni TermoSanitari SpA Italy Microgenus 27 Mffi Cod Part Code Description 998924 Panel combustion chamber front 571770 Main flow switch top cap