Ariston 47-116-15 installation instructions Central Heating Return

Page 14

FIG. 2.13
N	O
		R
T	Q	S
		J	U
		K
	L
		M
			SF014A

2.13WATER CIRCUIT DIAGRAM

FIG. 2.14

LEGEND:

1.Fan

2.Main Heat Exchanger

3.Overheat Thermostat

4. Burner

5.Ignition Electrodes

6. Detection Electrode

7.Motorised Valve

8.Main Circuit Temperature Probe

9.Main Circuit Flow Switch

10.Automatic By-pass

11.Domestic Hot Water Temperature Probe

12.Secondary Heat Exchanger

13.Gas Valve

14.Domestic Hot Water Flow Switch

15.Domestic Water Inlet Filter

16.Pressure Gauge

17.Safety Valve

18. Circulation Pump with Automatic Air Release Valve

19. Expansion Vessel

20. Air Pressure Switch

	A.	Central Heating Flow
	B.	Domestic Hot Water Outlet
	C.	Inlet Gas
	D.	Domestic Cold Water Inlet
SI017A	E.	Central Heating Return

14

Image 14

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 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 Manufacturer Merloni TermoSanitari SpA Italy Technical Service Hot Line 01494Technical Information Servicing Instructions Type C Boilers Fault Finding Servicing Instructions Removing the front panelRemoving the sealed chamber frontal cover Removing the side panelsRemoving the electrodes Removing the combustion coverRemoving the burner and jets 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 Propane gas G31 Regulating the heating power for Natural gas G20Regulating the heating power for Butane gas G30 Removing the spark generator Removing the gas valve Removing the D.H.W. secondary exchangerRemoving the automatic air vent Removing the safety valveRemoving the main circuit flow switch 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