Ariston A/23 MFFI - Manuals

Ariston A/23 MFFI – Manual in PDF format online.

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Manual

Manual Ariston A/23 MFFI

Summary

Page 2 - TABLE OF CONTENTS; Gas Adjustment Table

2 B023 TABLE OF CONTENTS 1. GENERAL INFORMATION 1.1 General Instructions1.2 Technical Information1.3 Overall View 2. INSTALLATION 2.1 Reference Standards2.2 Siting the Appliance2.3 Overall Dimensions2.4 Clearances2.5 Mounting the Appliance2.6 Electrical Connection2.7 Gas Connection2.8 Water Connecti...

Page 3 - Check the following at least once a year:; General Instructions

3 B023 This manual is an integral and essential part of the product. It should be keptwith the appliance so that it can be consulted by the user and our authorisedpersonnel. Please carefully read the instructions and notices about the unit contained int h i s m a n u a l , a s t h ey p r o v i d e i...

Page 4 - Technical Information; - Check proper operation of the heating safety system:; the instructions shown in the installation instructions.

CE CertificationHeat Input max/min kW 25.6/11.0 Heat Output max/min kW 23.1/9.2 Efficiency of Nominal Heat Input % 90.2 Efficiency at 30% of Nominal Heat Input % 87.8 Heat Loss to the Casing (³T=50°C) % 1.2 Flue Heat Loss with Burner Operating % 8.6 Flue Heat Loss with Burner Off % 0.4 Maximum Disch...

Page 5 - Overall View

5 B023 A/23 MFFI - A/27 MFFI Legend: 1. Flue Connector 2. Combustion Chamber Hood 3. Main Heat Exchanger 4. Combustion Chamber Insulation Panel 5. Burner 6. Expansion Vessel 7. Overheat Thermostat 8. Spark Generator 9. Diverter Valve 10. Main Circuit Temperature Probe11. Main Circuit Flow Switch12. ...

Page 6 - Flues; INSTALLATION

6 B023 The technical information and instructions provided herein below are intendedfor the installer so that the unit may be installed correctly and safely. The installation and initial start up of the boiler must be by a CORGI ApprovedInstaller in compliance with the installation standards current...

Page 9 - Water Connections; Legend; This boiler is suitable only for sealed systems.

9 B023 2.9 Water Connections Legend A = Central Heating FlowB = Domestic Hot Water OutletC = Gas InletD = Domestic Cold Water InletE = Central Heating ReturnI = Safety Valve Central HeatingDetailed recommendations are given in BS 6798:1987 and BS 5449-1:1990,the following notes are given for general...

Page 10 - Flue Connections; Residual Head of the Boiler

10 B023 public access. Air Release Points: These must be fitted at all high points where air naturally collects and must be sited to facilitate complete filling of the system.The appliance has an integral sealed expansion vessel to accommodate the increase of water value when the system is heated.It...

Page 11 - TERMINAL POSITION

TERMINAL POSITION mm A - Directly below an open window or other opening 300 B - Below gutters, solid pipes or drain pipes 75 C - Below eaves 200 D - Below balconies or car-port roof 200 E - From vertical drain pipes and soil pipes 75 F - From internal or external corners 300 G - Above ground or belo...

Page 14 - Remove the grommet “D” shown in photo 5, make a hole in it and pass; the room thermostat wire through.; Only a two-wire type room thermostat can be used.; Room Thermostat

14 B023 5 Remove the grommet “D” shown in photo 5, make a hole in it and pass the room thermostat wire through. 6 Remove the link located on the terminal and connect the wire.7 Replace the grommet and the terminal to their original positions, close the cover on the grommet compartment and fasten the...

Page 15 - Electrical Diagram; Colours

15 B023 2.11 Electrical Diagram Legend: AT = High Voltage P.C.B. BT = Low Voltage P.C.B. B = Flame Failure L.E.D. C = Insufficient Water Pressure L.E.D. D = Water Temperature Indicator L.E.D.s E = Overheat Thermostat Warning L.E.D. F = System Reset Button G = Selector Knob for Operating Mode H = Dom...

Page 17 - Water Circuit Diagram; Detection Electrode; COMMISSIONING; Initial Preparation; Filling the Heating System:

2.12 Water Circuit Diagram 17 B023 A/23 MFFI - A/27 MFFI Legend1. Air Pressure Switch2. Fan3. Main Heat Exchanger4. Main Burner 5. Ignition Electrodes Detection Electrode 6. Gas Valve7. Overheat Thermostat 8. Main Circuit Temperature Probe9. Diverter Valve10. Main Circuit Flow Switch including Safet...

Page 18 - Front Panel

40 50 60 70 80 C C 3.3 Control Panel A - Ignition Lockout Reset Button/Safety (Overheat)Thermostat ResetB - Ignition Lockout L.E.D.C - Selector Knob for Summer/Winter/Flue Analysis Modes* D - Low System Water Level L.E.D.E - Temperature Adjustment Knob for Domestic Hot WaterF - Heating System Thermo...

Page 20 - and CO; Combustion Analysis

20 B023 The boiler is designed to make it easy to analyse the combustion by-products. Using the especially designed aper tures, readings can be taken on thetemperature of the combustion by-products and of the combustion air, as wellas of the concentrations of O 2 and CO 2 , etc. The best maximum-pow...

Page 21 - Draining the System; Draining the heating system.; water that comes out; Draining the domestic hot water system.; GAS ADJUSTMENTS; Methane Gas

21 B023 off status. After the system has been allowed to cool, the system can be resetby pressing the button “A”.4 - Limescale Build-upThis is an indirect control (actuated through the regulation of the temperature inthe primary heat exchanger) on the formation of limescale in the secondaryheat exch...

Page 22 - MAINTENANCE

22 B023 4.1 Changing the Type ofGas The boiler can be converted to use either methane (natural) gas (G20) orLPG (G30 - G31) by an Authorised Service Centre.The operations that must be performed are the following:1. Replace the jets on the main burner (see table in section 4);2. Adjust the maximum an...

Page 23 - MISCELLANEOUS

6. MISCELLANEOUS 6.1 Wiring Diagram for Two Heating Zones V4043H VALVE BROWN 8 BLUE 2 GREY 9 ORANGE 10 GREEN/YELLOW 3 Hone yw ell ST 699B 1002 63 N L Link L-5-8 ST 6400/ST 6300 ST 6200 3 4 N L Dr ayton T empus 7 3 4 N L Horstmann 425, 525, 527 14 E N L Link L-2-5 Landis & Gyr R WB2 34 N L Glo ww...

Page 25 - NOTES

Page 28 - Merloni TermoSanitari SpA - Italy

Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS BuildingHughenden Avenue,High WycombeBucks HP13 5FTTelephone: (01494) 755600 -Fax: (01494) 459775Technical Service Hotline: (01494) 539579 Cod. 23 99 84 1260 112 - B023 ST AMP A: Azienda Gr afica BIEFFE sr l ...