Ariston L 64 Technical Information

Installation and Servicing InstructionsCLAS HE EVO CLAS HE EVO SystemCONDENSING WALL-HUNG GAS BOILERCountry of Destination. GB/IEG.C.N.:47-116-65 (24

10product description GENERAL NOTEModel: CLAS HE EVO SYSTEM 18 24 30 CE Certi cation (pin) 0085CL0440 Boiler typeC13(X)-C23-C33(X)-C43(X)-C53(X)-C

11installationReference StandardsIn the United Kingdom, the installation and initial start-up of the boiler must be by a Gas Safe registered installer

12installationGas SupplyThe gas installation and tightness testing must be in accordance with the requirements of BS6891. Ensure that the pipe size i

13installationCodensate DischargeThe condensate discharge hose from the boiler must have a continuous fall of 2.5o and must be inserted by at least 50

14installationInstalling the BoilerPlease check that you are familiar with the installation requirement before commencing work (pages 11 - 15).The ins

15installation Gas connection Make sure, using the labels on the packaging and the data plate on the appliance itself, that the boiler is in the corr

16installationTo calculate the size of the heating installation, refer to the "Available pressure" graph below. Graph representing the avail

17installation 1. Manual air vent 3. Burner 4. Detection electrode 5. C.H.  ow temperature probe 6. C.H. return temperature probe 7. Seconda

18installationConnecting the Flue Flue SystemThe provision for satisfactory  ue termination must be made as described in BS 5440-1.The appliance mus

19installationWarningThe exhaust gas ducts must not be in contact with or close to in ammable material and must not pass through building structures

INDEXOverview ...3General Information ...

20installation Fitting the 5” Flue (Ø 80 / 125 Horizontal/vertical)Once the boiler has been positioned on the wall, it is necessary to insert the Ø8

21installation Fitting the Coaxial Flue (Ø 60 / 100 Vertical) Note: See table for maximum and minimum  ue runs.Contents:1x Conical Adaptor (60/100m

22installationFitting the Twin Pipe (Ø80 / 80) Note: See table for maximum and minimum  ue runs.Where it is not possible to terminate the  ue within

23installation For coaxial systems, the maximum development value, mentioned in the table below also takes into account an elbow.For twin  ue systems

24installationTable of  ue gas exhaust duct lengths S1 = Air intake S2 = Flue gas exhaustS1 = S2 - Air intake and  ue gas exhaust equal lengthsS1 +

25installationWARNING Before performing any work on the boiler,  rst disconnect it from the electrical power supply using the external bipolar switch

26installationRoom Thermostat / Remote Clock ConnectionTo connect a room thermostat, it is necessary to:1. Open the control panel2. Loosen the cable c

27installationFitting instructions for:• Internal mechanical time clock• Internal RF receiver for Ariston programmable room thermostatThese instr

28installationElectrical diagramFor increased safety, ask a quali ed technician to perform a thorough check of the electrical system. The manufacture

29installationPeripheral unit connectionLV connectionBUSTBTA2 SETNK SOL TA1CN11DisplayC.H. Return temp. probeC.H. Flow temp. probeThermal fuse Switch

3overview These instructions are suitable for CLAS HE boilers :Do not forget the Log Book!The Benchmark SchemeBenchmark places responsibilities on bot

30installationEarths omitted for clarityR/STATREMOTE 2 CHANNEL PROGRAMMERTERMINALSTRIPC/H2 PORT VALVE240V3AMPLNEL NRemoveLinkCYL STATON OFFLNH/W2 POR

31installationEarths omitted for clarityR/STATREMOTE 2 CHANNEL PROGRAMMERTERMINALSTRIPC/H2 PORT VALVE240V3AMPLNEL NRemoveLinksCYL STATON OFFLNH/W2 PO

32commissioningInitial preparationThermo UK Ltd support the benchmark initiative. On pages pages 69 and 70 of this manual the Benchmark Commissionin

33commissioningFIRST IGNITION OPERATION1. Check the electrical supply.Complete . . . . . . . . . . . . . . . . . . . Date . .

34commissioningIgnition procedurePress the ON/OFF button on the control panel to switch on the boiler. The display shows:● the operating mode: winters

35commissioning Combustion checking procedureThe order of operations for this procedure must always be respected.Operation 1 - Supply pressure check

36commissioningOperation 4 - Checking the CO2 at minimum gas  owWith the Test function active, rotate the encoder to select the icom and . The b

37commissioningparameterCLAS HE EVOCLAS HE EVO SYSTEM18 24 30 38G20 G31 G20 G31 G20 G31 G20 G31 Lower Wobbe index (15°C, 1013 mbar) ( MJ/m3) 45,67 70,

38boiler protection devicesBoiler protection devicesThe boiler is protected from malfunctioning by means of internal checks performed by the electroni

39boiler protection devicesAnti-frost Device. The anti-frost function acts on the central heating  ow temperatu-re probe, independently from other re

4overviewCE labellingThe CE mark guarantees that the appliance conforms to the fol-lowing directives:- 2009/142/CEE relating to gas appliances - 20

40settings - adjustment - problem identi cation menusAccessing the settings - adjustment - problem identi cation menusThe boiler can be used to mana

41settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault settingSERVICE CODERotate encoder clockwise to sel

42settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault setting2 4 BOILER PARAMETER  PART 2243Post-ventil

43settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault setting2 7 TEST & UTILITIES270Test mode TEST+

44settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault setting423Parallel shift from - 7 to + 7 (low temp

45settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault setting524Compensation from 0 to 20 20 if setting

46settings - adjustment - problem identi cation menusmenusub-menuParameterDescription valuedefault setting6 3 DIAGNOSTICS634Zone 3 heat request 0 = O

47maintenanceImportantMaintenance is an essential part of the safe and e cient operation of the boiler and ensures its durability. It should be perf

48MAINTENANCE GUIDE1. GENERAL ACCESS1.1 General AccessTools TIME 3 minUnclip the cover to remove1Remove the two screws2Remove the front panel3

49MAINTENANCE GUIDE2. ELECTRICAL UNIT2.1 Control box accessTools TIME 4 minRemove the front panel as above and pivot the electricl box1Unhook

5overviewSafety regulationsKey to symbols:Failure to comply with this warning implies the risk of personal injury, in some circumstances even fatalFai

50MAINTENANCE GUIDE2.2 FuseTools TIME 5 minOpen the control box as above1Remove the fuse23 2.3 Main P.C.B.Tools TIME 5 minAfter openin

51MAINTENANCE GUIDE2.4 Display P.C.B.Tools TIME 5 minUnscrews the two screws and pull the assembly towards you1Disconnect the elctrical plug

52MAINTENANCE GUIDE3. HYDRAULIC UNIT3.1 RIGHT HAND HYDRAULIC BLOCK ASSEMBLYLegend:1 - Diverter valve motor2 - Diverter valve3 - Auto air vent4 - Prima

53MAINTENANCE GUIDE3.3 DrainingTools TIME 5 minTurn the drain valve anti-clockwise to open and drain the water from the boiler13.4 Automatic air

54MAINTENANCE GUIDE3.6 PumpTools TIME 10 minDrain the boiler (see 3.3). Remove the clip and the two screws1Disconnect the pipe and then move t

55MAINTENANCE GUIDE3.8 D.H.W. Flow switch assemblyTools TIME 10 minDrain the boiler (see 3.3). Remove the clip and pull the  ow switch assembly

56MAINTENANCE GUIDE3.11 Secondary heat exchangerTools TIME 10 minDrain primary and domestic hot water circuits. Remove the two screws and remov

57MAINTENANCE GUIDE3.12 Condensate trapTools TIME 5 minUnscrew the condensate trap from the condensate body13.13 Safety valveTools TIME

58MAINTENANCE GUIDE3.14 By-pass assemblyTools TIME 5 minDrain the boiler (see 3.3). Remove the second clip and pull the assembly towards you1233.

59MAINTENANCE GUIDE3.16 Manual Air ventTools TIME 5 minDrain boiler (see 3.3)Unscrew and lift the manual air vent from the exchanger12Remove t

6product description1234567891011121314151617181920212223249612I123456789101112Control panelLegend :1. Display2. Domestic Hot Water temperature adjus

60MAINTENANCE GUIDE3.17 Main heat exchangerTools TIME 20 minDrain boiler (see 3.3)Remove the silencer1Remove the two clips and disconnect t

61MAINTENANCE GUIDE4. BURNER UNIT12345678Legend:1 - Burner2 - Silencer3 - Gas diaphram4 - Mixing tube5 - Fan6 - Detection electrode7 - Ignition electr

62MAINTENANCE GUIDE4.1 Spark generatorTools TIME 5 minUnplug the ignition electrode from the spark generator.1Remove the screws and the spar

63MAINTENANCE GUIDE4.3 BurnerTools TIME 15 minRemove the silencer1Isolate the gas supply. Disconnect the gas pipe.2Pull the assembly toward

64MAINTENANCE GUIDE1324.4 FanTools TIME 15 minRemove the combustion assembly (see 4.3)1Remove the three screws to free the fan.2Legend:1 -

65MAINTENANCE GUIDE4.5 Gas ValveTools TIME 15 minRemove the two screws under the boiler and disconnect the gas pipe on the top of the gas

66MAINTENANCE GUIDE5. ANNUAL MAINTENANCEPlate heat exchangerMaintenance Interval: As necessaryHow: To measure speci cation of DHW performance.By-pass

67MAINTENANCE GUIDEPrimary Heat exchangerMaintenance Interval: AnnuallyHow : Visual inspection / Clean as necessaryCondensate trapMaintenance Interval

Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the

7product descriptionOverall view123456791012141619202122232481234567910121415192021222324 1. Flue connector 2. Manual air vent 3. Main heat ex

Service RecordIt is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.Service P

420010439400Ariston Thermo UK LtdHughenden AvenueHigh WycombeBucks HP13 5FTTelephone: (01494) 755600Fax: (01494) 459775Internet: www.ariston.co.ukTech

8product description28 200 150 315 mod. 24F385 mod. 30/38120 120 200 180 65 65 67 67 25 770 28200120 120200132 6567FOverall DimensionsA. Central

9product descriptionTechnical Data GENERAL NOTEModel: CLAS HE EVO 24 30 38 CE Certi cation (pin) 0085CL0440 Boiler typeC13(X)-C23-C33(X)-C43(X)-C5