Ariston 47-116-15 installation instructions Servicing Instructions, Removing the front panel

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1.SERVICING INSTRUCTIONS

To ensure efficient safe operation, it is recommended that the boiler is serviced annually by a competent person.

Before starting any servicing work, ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool.

Before and after servicing, a combustion analysis should be made via the flue sampling point (please refer to the Installation Manual for further details).

After servicing, preliminary electrical system checks must be carried out to ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and short circuit).

1.1REPLACEMENT OF PARTS

The life of individual components varies and they will need servicing or replacing as and when faults develop.

The fault finding sequence chart in chapter 2 will help to locate which component is the cause of any malfunction, and instructions for removal, inspection and replacement of the individual parts are given in the following pages.

1.2TO GAIN GENERAL ACCESS

All testing and maintenance operations on the boiler require the control panel to be lowered. This will also require the removal of the casing.

Removing the front panel

1.Loosen the fastening screws “A” of the control panel located on the lower part of the panel itself. (FIG. 1.1);

FIG. 1.1

A

19.eps

FIG. 1.2

14.eps

13.eps

FIG. 1.3

B063

2.The control panel moves downward and when pulled forward, rotates on two lateral hinges; the panel stays in a semi- horizontal position, which allows access to the inner parts of the boiler (FIG. 1.2);

3.In order to increase the manouvering space, it is possible to raise the control panel and rotate it to a fully horizontal position (FIG. 1.3);

4.Remove the screws “B” from the front panel bottom lip (FIG. 1.4);

5.Lift the front panel from the raised screws at the the top of the casing (FIG. 1.5).

FIG. 1.4

B

FO016A/15.eps

 

 

 

 

 

 

16.eps

FIG. 1.5

3

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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 Morley Road TonbridgeKent TN9 1RA 80 mm Extension Piping not insulated Piping insulated Restrictor Extension Piping not insulated Piping insulatedSystems Restrictor No RestrictorCalculating the lengths of the pipes, Electrical Diagram Central Heating Return Commissioning Control Panel Initial START-UP Operational Adjustments Status ANTI-FROST Device 16.0 GAS AdjustmentsMethane Liquid Gas Butane G20 Gas G30Maintenance Boiler MiscellaneousProgrammer Technical Service Hot Line 01494 Technical InformationManufacturer Merloni TermoSanitari SpA Italy Servicing Instructions Type C Boilers Fault Finding Removing the front panel Servicing InstructionsRemoving the side panels Removing the sealed chamber frontal coverRemoving the combustion cover Removing the burner and jetsRemoving the electrodes Removing the main heat exchanger Removing the fan Removing the air pressure switchSetting pressure for soft ignition Setting the gas pressuresSetting the minimum and the maximum power of the boiler Setting the maximum heating circuit powerRegulating the heating power for Natural gas G20 Regulating the heating power for Butane gas G30Regulating the heating power for Propane gas G31 Removing the spark generator Removing the D.H.W. secondary exchanger Removing the gas valveRemoving the safety valve Removing the main circuit flow switchRemoving the automatic air vent Removing the pump Removing the expansion vessel Removing the pressure gaugeRemoving the overheat thermostat Removing the D.H.W. temperature sensor N.T.CRemoving the heating temperature sensor N.T.C Removing the D.H.W. flow switchRemoving 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