Ariston CLAS HE R Installation And Servicing Instructions
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Ariston CLAS HE R Installation And Servicing Instructions

Condensing wall-hung gas boiler
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G.C.N.: 41-116-46 (24 kW)
CLAS HE R
INSTALLATION AND SERVICING INSTRUCTIONS
CONDENSING WALL-HUNG GAS BOILER
Country of Destination: GB/IE
HOT WATER
I
HEATING
I
RENEWABLE
I
AIR CONDITIONING

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  • Page 1 G.C.N.: 41-116-46 (24 kW) CLAS HE R INSTALLATION AND SERVICING INSTRUCTIONS CONDENSING WALL-HUNG GAS BOILER Country of Destination: GB/IE HOT WATER HEATING RENEWABLE AIR CONDITIONING...

  • Page 2: Table Of Contents

    INDEX Overview .......................3 Commissioning ..................29 General Information ...................4 Initial Preparation ..................29 Advice for the Installer ................4 Electricity Supply ..................29 CE Labelling ....................4 Filling the Heating System ..............29 Data Plate Symbols ..................4 Filling of the DHW System ..............29 Safety Regulations ..................5 Gas Supply ....................

  • Page 3: Overview

    MTS recommend the use of protective clothing, when installing and working on the appliance i.e. gloves.. CUSTOMER CARE ARISTON, as a leading manufacturer of domestic and commercial water heating appliances is committed to providing high quality products and a high quality after sales service.

  • Page 4: General Information

    OVERVIEW aggressive detergents, insecticides or toxic products. If the appliance ATTENTION!! is used in full compliance with current legislation, it will operate in a THE INSTALLATION AND FIRST safe, environmentally-friendly and cost-efficient manner. If using kits or optional extras, make sure they are authentic. IGNITION OF THE BOILER MUST BE PERFORMED BY QUALIFIED PERSONNEL CE labelling...

  • Page 5: Safety Regulations

    OVERVIEW SAFETY REGULATION Use electrical equipment suitable for its intended use (in particular, make sure that the power Key to symbols: supply cable and plug are intact and that the parts Failure to comply with this warning featuring rotary or reciprocating motions are implies the risk of personal injury, in some fastened correctly);...
  • Page 6 OVERVIEW During all work procedures, wear individual protective clothing and equipment. This appliance can be used by children Personal injury caused by electrocution, falling aged from 8 years and above and person splinters or fragments, inhalation of dust, shocks, with reduced physical, sensory or mental cuts, puncture wounds, abrasions, noise and capabilities or lack of experience and knowledge vibration.

  • Page 7: Product Description

    PRODUCT DESCRIPTION Control panel Legend : 1. Display 2. R button eset 3. Red indicator lockout light 4. Button _ 5. Temperature regulation knob 6. Esc button 7. Menu / OK button (Programming key) 8. Button + 9. ON/OFF button / Green indicator ON/OFF 10.

  • Page 8: Overall View

    PRODUCT DESCRIPTION Overall view 1. Central heating return 2. Central heating flow 3. Burner 4. Detection electrode 5. C.H. Return temperature probe 6. C.H. Flow temperature probe 7. Manual air vent 8. Gas valve 9. Trap 10. Electrical box 11. Gas tap 12.

  • Page 9: Installation

    INSTALLATION Reference Standards Flue In the United Kingdom, the installation and initial start-up of the Detailed information on flue assembly can be found in the “Connecting the Flue” section. boiler must be by a Gas Safe registered installer in accordance with the installation standards currently in effect, as well as with any and The boiler must be installed so that the flue terminal is exposed to the all local health and safety standards i.e.
  • Page 10 Automatic by pass supply from the F & E tank to the boiler/heating circuit (via the Ariston recommend that an automatic by pass is installed a minimum cold feed) shall be unrestricted. of 1.5 metres away from the boiler to ensure the minimum required •...
  • Page 11 If anti-freeze substances are to be used in the system, check carefully Tundish that they are compatible with the metals used in the circuit. ARISTON suggests the use of suitable anti-freeze products such as Fernox ALPHI 11, which will prevent rust and incrustation taking place.
  • Page 12 INSTALLATION Codensate Discharge 2. External termination of condensate drainage pipe via internal The condensate discharge hose from the boiler must have discharge branch (e.g. sink waste) and condensate siphon. a continuous fall of 2.5 and must be inserted by at least 50mm into a suitable acid resistant pipe - e.g.

  • Page 13: Installing The Boiler

    INSTALLATION Installing the Boiler Gas connection Please check that you are familiar with the installation requirement Make sure, using the labels on the packaging and the data plate on before commencing work. the appliance itself, that the boiler is in the correct country and that The installation accessories described in the following list are the gas category for which the boiler was designed corresponds to included in the boiler packaging:...

  • Page 14: Central Heating Connection

    INSTALLATION Central Heating connection A. Central Heating Return (pipes 22mm) B. Central Heating Flow Note: For IE use 3/4"» + 1/2" olives provided Instructions for opening the casing and performing an internal inspection Before performing any work on the boiler, first disconnect it from the electrical power supply using the external bipolar switch, removing the fuse and shutting off the gas valve.

  • Page 15: Water Circuit Diagram

    INSTALLATION Water circuit diagram BEFORE THE EQUIPMENT IS USED, FOR THE FIRST TIME THE TRAP MUST BE FILLED WITH WATER. TO DO THIS, ADD APPROXIMATELY 1/4 LITRE OF WATER VIA THE FLUE OUTLET BEFORE FITTING THE FLUE SYSTEM, OR UNSCREW THE CAP ON THE TRAP POSITIONED UNDERNEATH THE BOILER, FILL IT WITH WATER AND REFIT IT WARNING!

  • Page 16: Connecting The Flue

    INSTALLATION Connecting the Flue Flue System The provision for satisfactory flue termination must be made as de- scribed in BS 5440-1. The appliance must be installed so that the flue terminal is exposed to outdoor air. The terminal must not discharge into another room or space such as an outhouse or lean-to.

  • Page 17: Fitting The Coaxial Flue (Ø 60/100 Horizontal)

    INSTALLATION Warning The exhaust gas ducts must not be in contact with or close to Important inflammable material and must not pass through building structures Ensure that the flue is not blocked. or walls made of inflammable material. Ensure that the flue is supported and assembled in accordance with When replacing an old appliance, the flue system must be changed.

  • Page 18: Fitting The 5" Flue (Ø 80/125 Horizontal / Vertical)

    INSTALLATION Clamp Screws Seal Fig. 4 Fitting the 5” Flue (Ø 80 / 125 Horizontal/vertical) Once the boiler has been positioned on the wall, it is necessary to insert the Ø80/125 adaptor (Fig. 5) for both horizontal and vertical flue runs into the boiler flue socket (not supplied with flue kit - Part No 3318095).

  • Page 19: Fitting The Coaxial Flue (Ø 60/100 Vertical)

    INSTALLATION Fitting the Coaxial Flue Note: See table for maximum and minimum flue runs. (Ø 60 / 100 Vertical) Contents: 1x Conical Adaptor (60/100mm) 1x Vertical Flue Kit (80/125mm) The vertical flue kit is supplied with a specially designed weather proof terminal fitted, it can be used either with a flat roof or a pitched roof.

  • Page 20: Fitting The Twin Pipe (Ø 80/80)

    Always ensure that the flue is adequately supported, using one flue bracket per extension and avoiding low points. (ARISTON supply suitable clamps as Part No. 705778). To utilise the air intake it is necessary to:...
  • Page 21 INSTALLATION Fig. 9 For coaxial systems, the maximum development value, mentioned in the table below also takes into account an elbow. For twin flue systems the maximum development value, mentioned in the table includes the exhaust gas/air intake terminal. AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST Twin flue systems outlets should respect the following instructions: AIR INTAKE...
  • Page 22 INSTALLATION Table of flue gas exhaust duct lengths Maximum Extension Diameter Exhaust-air (m) FLUE TYPE of pipe CLAS HE R (mm) 24 EU ø 60/100 ø 80/125 S1 = S2 ø 80/80 S1 + S2 ø 80/80 S1 = Air intake S2 = Flue gas exhaust...

  • Page 23: Electrical Connections

    INSTALLATION Electrical connection unit To access the electrical connection unit carry out the following steps: WARNING! - Disconnect the boiler from the power supply - Loosen the screws on the cover of the outside connection box BEFORE PERFORMING ANY WORK ON below the boiler (see diagram below) THE BOILER, FIRST DISCONNECT IT FROM - Open the cover...

  • Page 24: Electrical Diagram

    INSTALLATION Electrical diagram The manufacturer is not responsible for any damage caused by the For increased safety, ask a qualified technician to perform a thorough lack of a suitable earthing system or by the malfunctioning of the check of the electrical system. electricity mains supply.
  • Page 25 INSTALLATION S Plan system utilizing external 2 channel programmer and Ariston unvented hot water cylinder...
  • Page 26 INSTALLATION S Plan system utilizing integral 2 channel programmer and Ariston unvented hot water cylinder...
  • Page 27 INSTALLATION Y Plan system utilizing external 2 channel programmer...
  • Page 28 INSTALLATION Y Plan system utilizing integral 2 channel programmer...

  • Page 29: Commissioning

    COMMISSIONING Initial preparation Water Treatment: Ariston Thermo UK Ltd Ltd support the benchmark initiative. On pages 59 and 60 of this manual the Benchmark Commissioning The boiler is equipped with a stainless steel heat exchanger. Checklist and Service interval Record can be found. It is important...

  • Page 30: First Igniton Operation

    COMMISSIONING FIRST IGNITION OPERATION Date ......Installer ......1.

  • Page 31: Ignition Procedure

    COMMISSIONING Ignition procedure Press the ON/OFF button on the control panel to switch on the boiler. The display shows: The operating mode will be indicated by the three figures marked out on the diagram above. The first figure indicates the operating mode: 0 XX - Stand-by C XX - Boiler active...

  • Page 32: Test Function And Combustion Analysis

    To access these pressure test points, unscrew the screw which holds analysis. Check the CO2 value according to the table opposite. the blanking cover and its seal together. CLAS HE R 24 EU Maximum or minimum CO 2 CO 2 (%) from 8.3 to 9.7...
  • Page 33 (menu 2/sub menu 3/parameter 6), to a time between 0 and 7 minutes. Automatic selection means that the boiler will establish the delay time based on the set-point temperature. Gas setting CLAS HE R 24 EU parameters lower Wobbe index 45,67 70,69 (15°C, 1013 mbar) (MJ/m3)

  • Page 34: Auto Function

    COMMISSIONING AUTO function The AUTO function determines the best power output and flow tem- perature for the heating system by continually monitoring demand. It uses advanced modulating technology to closely track demand and matches output with the highest precision. This ensures that either with or without the addition of further controls the activation of the AUTO function will enhance boiler performance.

  • Page 35: Boiler Protection Devices

    BOILER PROTECTION DEVICES Table summarising error codes Boiler protection devices The boiler is protected from malfunctioning by means of internal Central Heating circuit checks performed by the P.C.B., which stops the boiler from Display Description operating if necessary. In the event of the boiler being shut off in this manner, a code 1 01 Overheat appears on the display which refers to the type of shut-off and the...

  • Page 36: Settings - Adjustment - Problem Identification Menus

    SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS Accessing the settings - adjustment - problem identification menus The boiler can be used to manage the heating system in its entirety. The parameters relating to each individual menu are listed in the Navigation within the menus enables the boiler system + connected following pages.
  • Page 37 SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS Description value 2 BOILER PARAMETER SETTING 1 Entering access code 222 press the programming "+" button to select 234 and press the m button 2 BOILER GENERAL SETTING 0 Slow ignition 0 to 99 RESERVED FOR SAT 1 Minimum ambient temperature for antifreeze from 2 to 10 °C...
  • Page 38 SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS Description value 3 NOT PRESENT 4 NOT PRESENT 5 NOT PRESENT 9 RESET MENU 2 0 Automatically resetting to the default setting in Reset To reset all default parameter settings, menu 2 OK = yes press the MENU button ESC = no 4 ZONE 1 PARAMETER...
  • Page 39 SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS Description value 4 ZONE DEVICE MANAGEMENT NOT PRESENT 5 ZONE 2 PARAMETER 0 ZONE 2 TEMPERATURE SETTING 0 NOT PRESENT 1 NOT PRESENT 2 NOT PRESENT 1 Entering access code 222 press the programming "+" button to select 234 and press the m button 2 CYLINDER SETTING...
  • Page 40 SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS Description value NOT PRESENT NOT PRESENT 3 BOILER TEMPERATURE 0 Heating adjustment temperature (°C) 1 Heating flow temperature (in °C) 2 Heating backflow temperature (in °C) NOT PRESENT 4 SOLAR APPLIANCE AND TANK NOT PRESENT NOT PRESENT NOT PRESENT...

  • Page 41: Maintenance

    MAINTENANCE Important We recommend the use of anti-freeze products which contain Maintenance is an essential part of the safe and efficient operation PROPYLENE GLYCOLS as these inhibit corrosion and that they of the boiler and ensures its durability. It should be performed are used in conjunction with the anti-scaling and anti-corrosion according to the instructions given in current legislation.

  • Page 42: Maintenance Guide

    MAINTENANCE GUIDE 1. GENERAL ACCESS Tools Time 3 min Remove the two screws Remove the front panel Lower the control panel Remove the combustion chamber front panel by releasing the clips...

  • Page 43: Electrical Unit

    MAINTENANCE GUIDE 2. ELECTRICAL UNIT 2.1 CONTROL BOX ACCESS Tools Time 4 min Pull and Lower the electrical box cover 2.2 FUSE Tools Time 4 min Remove the fuse...
  • Page 44 MAINTENANCE GUIDE 2.3 MAIN PCB Tools Time 7 min Unscrew the two screws and remove the PCB After opening the control box, dis- connect the electrical plug connectors 2.4 DISPLAY PCB Tools Time 7 min Remove the two screws Lower the door Remove the front panel Remove the control knob Disconnect the electrical plug connectors,...

  • Page 45: Hydraulic Unit

    MAINTENANCE GUIDE 3. HYDRAULIC UNIT 3.1 CONDENSE TRAP Tools Time 3 min Unscrew the condense trap from the condense body 3.2 TEMPERATURE SENSORS Tools Time 5 min NTC1 NTC2 Unplug the electrical connec- Remove the clip and the tem- NTC1 : Black wires tors perature sensor NTC2 : Grey wires...
  • Page 46 MAINTENANCE GUIDE 3. HYDRAULIC UNIT 3.3 MAIN HEAT EXCHANGEUR Tools Time 20 min Remove the two clips and disconnect Remove the four screws and dis- Remove the four screws to free the the two pipes connect the gas pipe from the gas heat exchanger Disconnect electrical gas valve, and valve...

  • Page 47: Burner Unit

    MAINTENANCE GUIDE 4. BURNER UNIT LEGEND 1. Burner 2. Fan 3. Silencer 4. Gas inlet 5. Air inlet 6. Gas valve 7. Mixing tube 8. Detection electrode 9. Ignition electrode 10. Spark generator...
  • Page 48 MAINTENANCE GUIDE 4.1 SPARK GENERATOR Tools Time 5 min Unplug the ignition electrode from Remove the screws and the spark the spark generator generator 4.2 ELECTRODES Tools Time 6 min Unplug the electrodes Remove the screws and pull the elec- trodes towards you...
  • Page 49 MAINTENANCE GUIDE: CLAS HE SYSTEM MAINTENANCE GUIDE BURNER BURNER Tools Time 15 min Isolate the gas supply. Remove the Pull the assembly towards Remove the silencer four screws and disconnect the gas pipe from the gas valve Remove the three screws Pull the burner toward you Remove the three screws to free Remove the screws to free the burner door...
  • Page 50 MAINTENANCE GUIDE Tools Time 15 min 4.4 FAN Remove the three screws to free the Remove the combustion fan. assembly (see 4.3) Twist the gas valve anti-clockwise to disengage it from the fan 1. Venturi 2. Gasket 3. Fan Fan & mixer venturi according to the model Power Venturi diameter 24 kW...
  • Page 51 MAINTENANCE GUIDE 4.5 GAS VALVE Time Tools 15 min Replacement Gas Valves are not fac- tory set and will need to be set up Remove the combustion Twist the gas valve anti-clockwise to disen- assembly (see 4.3) gage it from the fan LEGEND 1.

  • Page 52: Annual Maintenance

    MAINTENANCE GUIDE 5 ANNUAL MAINTENANCE Ignition & detection electroded Maintenance Interval : Annually How : Visual inspection / Clean as necessary / Distance from the burner / Ionisation current more than 1 µA Burner Maintenance Interval : Annually How : Visual inspection / Clean as necessary Maintenance Interval : Annually How : Visual inspection / Clean as necessary Primary heat exchanger...

  • Page 53: Technical Data

    TECHNICAL DATA Model CLAS HE R 24 EU CE Certification (pin) 0085BR0347 B23-B23p-B33 Boiler type C13-C33-C43-C53-C83 Max/min nominal calorific flow rate (Pci) 24.6/5.3 Max/min nominal calorific flow rate (Pcs) 27.3/5.9 Max/min power output (80°C-60°C) 24.1/5.0 Max/min power output (50°C-30°C) 26.0/5.4 Combustion efficiency (of flue gas) 97.5...

  • Page 54: Erp Data

    TECHNICAL DATA ErP Data - EU 813/2013 24 EU Model: CLAS HE R Condensing boiler yes/no Low-temperature boiler: yes/no B1 boiler yes/no Cogeneration space heater yes/no Combination heater yes/no ARISTON THERMO S.p.A. Viale A. Merloni 45 Contact details ( Name and address of the manufacturer or its authorised representative)

  • Page 55: Package Label - Instuctions To Filling

    TECHNICAL DATA Package fiche Instructions for filling the label for packages of space heater (or combination heater), temperature control and solar device. 1. supplier’s name or trademark; 2. supplier’s model identifier; 3. the seasonal space heating energy efficiency class of the space heater, already filled;...
  • Page 56 TECHNICAL DATA PACKAGES OF COMBINATION HEATER, TEMPERATURE CONTROL AND SOLAR DEVICE The fiche for packages of combination heater, temperature control and solar device shall contain the elements set out in points (a) and (b): a) the elements set out in Figure 1, respectively, for evaluating the seasonal space heating energy efficiency of a package of combination heater, temperature control and solar device, including the following information:...
  • Page 57 TECHNICAL DATA Figure 1 Seasonal space heating energy e ciency of boiler ‘I’ Temperature control Class From che of temperature control I = 1%, II = 2%, III = 1,5%, IV = 2%, V = 3%, VI = 4 %, VII = 3,5%, VIII = 5% Supplementary boiler Seasonal space heating energy e ciency (in %) From che of boiler...
  • Page 58 TECHNICAL DATA Figure 5 Water heating energy e ciency of combination heater ‘I’ Declared load pro le: Solar contribution - From che of solar device Auxiliary electricity (1,1 x ‘I’ - 10%) x ‘II’ - ‘III’ - ‘I’ = Water heating energy e ciency of package under average climate Water heating energy e ciency class of package under average climate <...

  • Page 59: Benchmark Commissioning Checklist

    GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failuretoinstallandcommissionaccordingtothemanufacturer’sinstructionsandcompletethisBenchmarkCommissioningChecklistwillinvalidatethe warranty.Thisdoesnotaffectthecustomer’sstatutoryrights.

  • Page 60: Benchmark Service Interval Record

    SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider BeforecompletingtheappropriateServiceRecordbelow,pleaseensureyouhavecarriedouttheserviceasdescribedinthemanufacturer’sinstructions. Alwaysusethemanufacturer’sspecifiedsparepartwhenreplacingcontrols. SERVICE 01 SERVICE 02 Date: Date: Engineername: Engineername: Companyname: Companyname: TelephoneNo: TelephoneNo: GassaferegisterNo: GassaferegisterNo: Atmax.rate: COppm AND CO ²...
  • Page 64 ITALIAN DESIGN Ariston Thermo UK Ltd Artisan Building Hillbottom Road High Wycombe Bucks HP124HJ Telephone: 01494 418500 ariston.com/uk Technical Advice: 0333 240 7777 Customer Service: 0333 240 8777...

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