Ariston 47-116-15 installation instructions MicroGENUS 23/27 Mffi

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microGENUS 23/27 MFFI

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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 Restrictor Extension Piping not insulated Piping insulated SystemsRestrictor 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 GAS Adjustments Methane Liquid Gas ButaneG20 Gas G30 16.0Maintenance Miscellaneous BoilerProgrammer Technical Service Hot Line 01494 Technical InformationManufacturer Merloni TermoSanitari SpA Italy Servicing Instructions Type C Boilers Fault Finding Servicing Instructions Removing the front panelRemoving the sealed chamber frontal cover Removing the side panelsRemoving the combustion cover Removing the burner and jetsRemoving the electrodes Removing the main heat exchanger Removing the air pressure switch Removing the fanSetting the gas pressures Setting the minimum and the maximum power of the boilerSetting the maximum heating circuit power Setting pressure for soft ignitionRegulating 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 gas valve Removing the D.H.W. secondary exchangerRemoving the safety valve Removing the main circuit flow switchRemoving the automatic air vent Removing the pump Removing the pressure gauge Removing the expansion vesselRemoving the D.H.W. temperature sensor N.T.C Removing the heating temperature sensor N.T.CRemoving the D.H.W. flow switch Removing the overheat thermostatChecking the fuses Removing the time clockRemoving the P.C.B Fault Finding Finding diagrams described in this chapterYES 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