Ariston 47-116-12, A/23 MFFI, A/27 MFFI, 47-116-10 installation instructions Table of Contents

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TABLE OF CONTENTS

1.GENERAL INFORMATION

1.1General Instructions

1.2Technical Information

1.3Overall View

2.INSTALLATION

2.1Reference Standards

2.2Siting the Appliance

2.3Overall Dimensions

2.4Clearances

2.5Mounting the Appliance

2.6Electrical Connection

2.7Gas Connection

2.8Water Connections

2.9Flue Connection

2.10Room Thermostat Connection

2.11Electrical/System Diagrams

2.12Water Circuit Diagrams

3.COMMISSIONING

3.1Initial Preparation

3.2Removing the Front Panel

3.3Control Panel

3.4Initial Start-up

3.5Operational Adjustments

3.6Combustion Analysis

3.7Fume Discharge Monitoring

3.8Boiler Safety Systems

3.9Draining the System

4.GAS ADJUSTMENTS

Gas Adjustment Table

4.1 Changing the Type of Gas

5.MAINTENANCE

6.MISCELLANEOUS

6.1Wiring Diagram for Two Heating Zones

6.2Wiring Diagram for Connection to Ariston Unvented Cylinderl

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Contents Mffi A/27 Mffi Table of Contents General Information General InstructionsTechnical Information MffiMffi A/27 Mffi Overall ViewInstallation Reference Standards Siting the ApplianceOverall Dimensions ClearancesGas Connection Mounting the ApplianceElectrical Connection Pipe Work Safety Valve DischargeWater Connections By-passFilling Flue ConnectionsMains Water Feed Central Heating Terminal Position B023 Coaxial System Room Thermostat Connection Electrical Diagram ColoursB023 Initial Preparation Water Circuit DiagramMffi Commissioning Filling the Heating SystemSelector Knob for Summer/Winter/Flue Analysis Modes Removing the Front PanelControl Panel Initial Start-up Operational Adjustments Checks to be run before initial start-up are as followsOverheating Ignition FailureCirculation Failure Draining the System GAS AdjustmentsSafety Shut-off Limescale Build-upMaintenance Changing the Type of GasWiring Diagram for Two Heating Zones MiscellaneousWiring Diagram for Connection to Ariston Unvented Cylinder BlueB023 B023 B023 Cod 99 84 1260 112 B023 Manufacturer Merloni TermoSanitari SpA Italy