Ariston 47-116-15 installation instructions Cod

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		cod. 998613					cod. 998940				cod. 999091
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		cod. 998099				cod. 997089
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		373								MODELS			CHARACTERISTICS					SERIAL	NO:			REF.
			374							MODELS			CHARACTERISTICS					SERIAL	NO:			REF.
																		VALIDITY
						321			MICROGENUS			27			METHANE			0002601386				A
		375				321				MFFI
		375							MICROGENUS			27			LPG			0002601388				B
									MICROGENUS			27			LPG			0002601388				B
										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 No Restrictor Restrictor Extension Piping not insulated Piping insulatedSystems 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 G20 Gas G30 GAS AdjustmentsMethane Liquid Gas Butane 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 maximum heating circuit power Setting the gas pressuresSetting the minimum and the maximum power of the boiler 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. flow switch Removing the D.H.W. temperature sensor N.T.CRemoving the heating temperature sensor N.T.C 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