Ariston GENUS Información técnica

Installation and ServicingInstructionsType C BoilersmicroGENUS HE 24 MFFI G.C.N:47-116-37microGENUS HE 28 MFFI G.C.N:47-116-38microGENUS HE 32 MFFI G.

10123456123456ECII1. Internal termination of condensate drainage pipe to internal stack3. External termination of condensate drainage pipe via interna

114. External termination of condensate drainage pipe viacondensate siphonmixture of the boiler circuit and replace it when theamount measured is out

12TERMINAL POSITION mmA - Directly below an open window or other opening 300B - Below gutters, solid pipes or drain pipes 75C - Below eaves 200D - Bel

13WarningThe exhaust gas ducts must not be in contact with or close toinflammable material and must not pass through buildingstructures or walls made

14FIG. 2.122.9.2 FITTING THE 5” FLUE (Ø 80 / 125 HORIZONTAL /VERTICAL)Should the flue require extending, the flue connections are pushfit, however, on

15NOTE:SEEPAGE19 FOR MAXIMUM AND MINIMUM FLUE RUNS.CONTENTS:1X SILICONE O-RING (60mm)1X CONICAL ADAPTOR (60/100mm)1X VERTICAL FLUE KIT (80/125mm)3X SC

162.9.4. FITTING THE TWIN PIPE (Ø80 / 80)NOTE:SEEPAGE19 FOR MAXIMUM AND MINIMUM FLUE RUNS.Where it is not possible to terminate the flue within the di

17For further information relating to flue runs not illustrated, pleasecontact the Technical Department on 0870 241 8180.123,5 135230 MIN *200132Fig.

18For coaxial systems, the maximumdevelopment value, mentioned in thetable above also takes into accountan elbow.For twin flue systems the maximumdeve

1910NOTE:DRAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY.TYPE 1TYPE 5TYPE 4TYPE 3TYPE 2

2TABLE OF CONTENTS1. GENERAL INFORMATION PAGE.31.1 GENERAL INSTRUCTIONS PAGE.31.2 OVERALL VIEW PAGE.42. INSTALLATION PAGE.42.1 REFERENCE STANDARDS PAG

20123456123456ECIIIJKLEGEND:A -On/Off ButtonB - Domestic Hot Water Temperature AdjustmentC - Central Heating Temperature AdjustmentD - Reset Button/Fl

21In order to access the inside of the boiler, it is necessary to unscrewthe fastening screws “A” of the control panel located on the lowerpart of the

222.14. FITTING THE DIGITAL CLOCKThe microGENUS HE boiler is supplied with a factory fittedmechanical time clock. There is a digital clock available a

232.15. SETTING THE MECHANICAL TIME CLOCK2.16. SETTINGTHEDIGITALTIME CLOCK123456123456ECIIFIG. 2.281. General layoutThe mechanical clock covers a 24 h

24Automatic Manual ContinuousOperation Operation OperationThe switching If the current You can onlytimes corres- switching mode is return to

252.17 ELECTRICAL/SYSTEM DIAGRAMSFUSEFUSE12 45 63ON56A BCN203 CN206CN206CN205 CN203 CN201 CN303 CN302CN201CN300CN302CN303CN304CN205CN200HLMINOPQBlkBlk

26A - Dip SwitchesB - Summer/Winter Switch - Central Heating TemperatureRegulationC - Connector for Remote Control (Climate Manager)D - Domestic Hot W

271234567891011AB C D E12 13 14 15 161718201921222324LEGEND:1. Fan2. Heat Exchanger3. Overheat Thermostat 4.Central Heating Flow NTC5. Burner 6. Detec

28MTS (GB) Limited support the initiative. In Sections 11and 12 of this manual you will find the commissioningchecklist (

29Copal MB-1, or BetzDeaborn Sentinel X100 is recommended.NOTE:FAILURE TO CARRY OUT THE FLUSHING PROCEDURE WILL RESULT INTHE WARRANTY BECOMING VOID.In

3This manual is an integral and essential part of theproduct. It should be kept with the appliance so that it canbe consulted by the user and our auth

303.2 INITIALSTART-UPTHE CHECKS TO BE RUN BEFORE INITIAL START-UP ARE AS FOLLOWS:1. Make sure that:- the screw on the automatic air valve has been loo

31In the boiler, it is possible to monitor the correct operation of the flueexhaust/air intake, checking for a loss of general pressure in thesystem.

323.7 BOILER SAFETY SYSTEMSThe boiler is protected from malfunctioning by means of internalchecks by the P.C.B., which brings the boiler to a stop if

33DRAINING THE HEATING SYSTEMThe heating system must be drained as follows:- Turn off the boiler;- Attach a hose pipe and open the drain valve;- Drai

341. Hand over the copy of the End User Instructions supplied withthe appliance, together with these instructions, and explain howto use the timeclock

354. GAS ADJUSTMENTSCATEGORY II2H3+ Methane GasG20Liquid Butane GasG30Liquid Propane GasG31Lower Wobbe Index (15°C;1013mbar) MJ/m3hNominal Delivery Pr

Setting the minimum and the maximum power of the boiler1.Check that the supply pressure and dynamic working pressure tothe gas valve is a minimum of 2

371 2 4 5 63ONABCN203 CN206CN201CN200Soft-lightAdjustmentMax HeatingPowerSetting the maximum heating circuit power1. To set the maximum heating cir

38NOTE:THIS TABLE CAN BE USED IN CONJUNCTION WITH THE GRAPHS ON PAGE 39.NATURAL GAS (G20)kW 11.3 12 15 20 24 28 30.5mbar 1.8 2.0 3.2 5.2 7.4 10.1 12.0

39FIG. 4.1Regulating the heating power fornatural gas (G20)Regulating the heating power forbutane gas (G30)Regulating the heating power forpropane gas

425262724232221201918171615141312111098765432128LEGEND:1. Flue Manifold2. Air Intake for Twin Pipe Flue Systems3. Fan4. Combustion Chamber Hood5. Main

40It is recommended that the following inspections be carried outon the boiler at least once a year:1 - Check the seals for the water connections; rep

412. The control rotates on two lateral hinges; the panel stays in ahorizontal position, which allows access to the inner parts of theboiler (FIG. 6.2

426.2.2 Removing the sealed chamber front cover1.Remove the screws “C” (FIG.6.5);2. Lift the sealed chamber front cover from the locating pins(FIG. 6

436.3.3 Removing the electrodesBefore carrying out this procedure, unscrew and slide theburner forward (see previous section).1. Remove rubber gasket

44To replace, repeat the steps in reverse order, payingparticular attention to the following:a - Centre the electrode in the positioning hole carefull

451. Disconnect the electrical connections “L” and siliconepipes “M” from their connection points (FIG. 6.20);2. Remove screws “N” on the top of the s

461. Remove screw “P” and remove the fan collar clamp “Q”(FIG.6.24);2. Disconnect electrical connections “Q” and silicone pipe“Q” (FIG.6.25);3. Remove

471. Remove the U-clips “U” (FIG.6.30);2. Remove the clamp “V” to disconnect the condensate traptube (FIG.6.31);3.Loosen the nut “W” (FIG.6.32);4. Re

481. Remove the latent heat exchanger - see paragh. 6.3.82. Unscrew the two screws “Y” (FIG.6.36);3. Remove the recuperaor (FIG.6.37);4.Reassemble in

49FIG. 6.46FIG.6.47A5A56.4.2 Removing the gas valve (Honeywell)Important! Before removing the gas valve, ensure thegas supply is turned off.1. Disconn

52.1 REFERENCESTANDARDS2. INSTALLATIONThe technical information and instructions providedherein below are intended for the installer / ServicingTechni

50Important! Before any component is removed, the boilermust be drained of all water.6.5.1 Removing the D.H.W. (secondary) exchanger1.Remove the cond

516.5.2 Removing the pump pressure switch1.Remove the pump pressure switch electrical connections“A8” (FIG 6.52);2.Unscrew the pump pressure switch b

526.5.4 Removing the automatic air vent1. Remove the U-clip “B1” (FIG. 6.58);2.Remove valve complete with float using a screwdriver(FIG 6.59-FIG 6.60

53FIG.6.64FIG. 6.66FIG. 6.65B5B6B76.5.6 Removing the pressure gauge1. Remove the U-clip “B8” (FIG. 6.67)2.Push the pressure gauge through the control

546.5.7 Removing the expansion vessel1. If rear exit flue, remove the flue;2.Release nut “B9” (FIG.6.70);3. Remove back-nut “C1” (FIG. 6.71);4. Remov

556.5.10 Removing the D.H.W. temperature sensor (N.T.C.)1.Pull off the electrical connector and unscrew thesensor probe using a suitable spanner (FIG

56FIG. 6.80FIG. 6.81FIG. 6.82C56.5.12 Removing the D.H.W. flow switch1. Unplug the electrical connector “C5” (FIG. 6.80);2.Remove the D.H.W. flow swit

576.6.2 Removing the P.C.B.1. Isolate electricity;2.Remove the inspection cover from the reverse of thecontrol panel, unscrew the screws “C7” (FIG. 6

PRELIMINARY CHECKSMAKE SURE THAT:ISTHE POWERDISPLAYON?POSTIONOF THESELECTORNONOWINTERES TAT ENOYESYESYESYESYESNONONONONONONOYESYESYESTURN ON T

PRELIMINARY CHECKSMAKE SURE THAT:ISTHE POWERDISPLAYON?POSTIONOF THESELECTORNONOWINTERES TAT ENOYESYESYESYESYESNONONONONONONOYESYESYESTURN ON T

6After removing the boiler from its packaging, remove thetemplate from the separate box containing the connectionkit. NOTE: Pay particular attention t

1. Check the fan cable2. Replace the fan3. Replace the main P.C.B.1. Check/replace ignition electrode2. Check ignition cable3. Check/replace the ma

1. Check the fan cable2. Replace the fan3. Replace the main P.C.B.1. Check/replace ignition electrode2. Check ignition cable3. Check/replace the ma

628. SHORT SPARE PART LIST2341222041131415141585868484872724 25231928261831 34 36 36 3732171619211060 56 5567 636566 621064681097945838424751522910010

63401402403code 65100547code 65101257503502501504601606604601602610601611609603607603608605602701705701701702703704701701code 65102576

64Keyno.G.C. partno.DescriptionARISTONPart. No.18 Motor (3-Way Valve) 99714719 O-Ring 99842422 Gasket (3/4”) 57352025 Gasket (1/4”) 56939026 Low Water

659. TECHNICAL INFORMATIONNameCE CertificationFlue TypeHeat Input max/min (Central Heating) kWHeat Output max/min kWEfficiency of Nominal Heat Inp

66NameCE CertificationFlue TypeHeat Input max/min (Central Heating) kWHeat Output max/min kWEfficiency of Nominal Heat Input (60/80°C) %Efficiency

6711. BENCHMARK COMMISSIONING CHECKLIST

6812. SERVICE INTERVAL RECORD

69

7For safety purposes, have a competent person carefullycheck the electrical system in the property, as themanufacturer will not be held liable for dam

70

71

099 84 1915 000Manufacturer: Merloni TermoSanitari SpA - ItalyCommercial subsidiaries: MTS (GB) LIMITED MTS Heating LimitedMTS Building Damastown Indu

End UserManualmicroGENUS HE 24 MFFImicroGENUS HE 28 MFFImicroGENUS HE 32 MFFICountry of destination: GB123456123456IIEC

2TABLE OF CONTENTS1. GENERAL INFORMATION page 3Technical Information page 3Control Panel page 42. OPERATING INSTRUCTIONS page 43. USEFUL INFOR

3MTS (GB) Limited support the initiative. Your installer will give you, and showyou how to use, a Log Book which will give you importan

4KCONTROLPANEL2. OPERATING INSTRUCTIONSCAUTIONInstallation, start-up, adjustments and maintenance must be performed by acompetent person only, in acco

5PRACTICAL TIPS- If the water is very hard, it is recommended that a water softener be added to thesystem so as to reduce the formation of limescale i

6ECONOMY/COMFORT MODEThe selector knob “E” allows the user to choose the economy mode (position “E”) or thecomfort mode (position “C”).The economy mod

74.MAINTENANCE5.CHANGE OF GAS TYPEOther Shutdown SituationsShould a shutdown situation indicated on the display by the following letters andfigures oc

8VIEW OF THE BOILER CONNECTIONSLEGEND:A = Central Heating FlowB = Domestic Hot Water OutletC = Gas InletD = Domestic Cold Water InletE = Central Heati

Cod. 099841914000 UT011ApANOTE: the time clock is for central heating control only.The time clock is provided with 96 switches, called riders, each of

SPARE PARTS EXPLODED VIEWGAS WALL BOILERSModelsMICROGENUS 24 MFFI HE MICROGENUS 28 MFFI HE MICROGENUS 32 MFFI HE Edition 1 of 10 November 2004 ER20042

2341222041131415141585868484872724 25231928261831 34 36 36 3732171619211060 56 5567 636566 62106468109794583842475152291001037876777779120115224849501

PART. CODE DESCRIPTION REF. NOTE1 112 998616 Expansion vessel3 998776 Bush (expansion vessel)4 998581 3/8" lock nut5 990662 Clamp6 990665

PART. CODE DESCRIPTION REF. NOTE65 990678 Flue (exhaust manifold / header)66 998637 Gasket (flue collar - 5 pcs)67 998595 Plug (air intake)68 6510

PART. CODE DESCRIPTION REF. NOTE129 65102574 Plug 301 65101352 Case panel (L.H. side)302 998596 Insert case303 65101351 Case panel (R.H. side)304

401402403code 65100547code 65101257503502501504601606604601602610601611609603607603608605602701705701701702703704701701code 65102576- 6 -ER20042100470

9SAFETYVALVEDISCHARGE:The discharge should terminate facing downward on theexterior of the building in a position where discharging(possibly boiling w