Ariston E-COMBI 24 Installation And Servicing Instructions
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Ariston E-COMBI 24 Installation And Servicing Instructions

Gas fired condensing wall hung combination boiler
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Country of destination GB, IE
Gas fired condensing wall hung
combination boiler
G.C.N : 47-116 - 62 (24 kW)
G.C.N : 47-116 - 63 (30 kW)
G.C.N : 47-116 - 64 (38 kW)
E-COMBI 24
E-COMBI 30
E-COMBI 38

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  • Page 1 Gas fired condensing wall hung combination boiler G.C.N : 47-116 - 62 (24 kW) G.C.N : 47-116 - 63 (30 kW) G.C.N : 47-116 - 64 (38 kW) E-COMBI 24 E-COMBI 30 E-COMBI 38 Country of destination GB, IE...

  • Page 2: Table Of Contents

    overview INDEX Maintenance Overview General Comments ............34 General Information ............3 General Access ..............36 Advice for the Installer ............4 Electrical Unit ..............37 CE Labelling ................4 Hydraulic Unit ..............39 Data Plate Symbols ............. 4 Burner Unit ................47 Safety Regulations .............. 5 Fan Unit .................50 Gas Valve ................51 Product description...

  • Page 3: General Information

    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. Advice on installation or servicing can also be obtained by contacting the ARISTON Technical and Customer Service Departments at High Wycombe.

  • Page 4: Overview

    overview Advice for the installer Turn the boiler off and turn the external switch “OFF” The installation and first ignition of the to clean the exterior parts of the appliance. boiler must be performed by qualified personnel Clean using a cloth dampened with soapy water. Do in compliance with current national regulations not use aggressive detergents, insecticides or toxic regarding installation, and in conformity with...

  • Page 5: Safety Regulations

    overview Safety regulations ladders are fitted with handrails on either side of the ladder and parapets on the landing. Key to symbols: Personal injury caused by falling from a height. During all work carried out at a certain height Failure to comply with this warning implies the risk of (generally with a difference in height of more personal injury, in some circumstances even fatal.

  • Page 6: Product Description

    product description Control panel 60° 70° 50° 80° 40° 90° on/o Legend : 1. Green indicator : CH temperature and error indicator . ON/OFF button 3. Green indicator : ON/OFF 4. Pressure gauge 5. Winter / Summer switch - Heating temperature regulation knob 6.

  • Page 7: Overall View

    product description Overall view 1. Flue connector 14. Circulation pump with auto air vent . Manual air vent 15. Diverter valve 3. Burner 16. Low water pressure switch 4. Detection electrode 17. Silencer (according to model) 5. C.H. Return temperature probe 18.

  • Page 8: Overall Dimension

    product description Overall Dimensions 24/30/38 67 67 A. Central Heating Flow B. Domestic Hot Water Outlet C. Gas Inlet D. Domestic Cold Water Inlet E. Central Heating Return Minimum clearances In order to allow easy access to the boiler for maintenance operations, the boiler must be installed...

  • Page 9: Technical Information

    product description Technical Data Model E-COMBI CE Certification (pin) 0085BR0347 Boiler type B3-C13-C33-C43-C53-C83 Max/min nominal calorific flow rate (Pci) .0/5.5 8.0/6.5 31.0/7.5 Max/min nominal calorific flow rate (Pcs) 4.4/6.1 31.1/7. 34.4/8.3 Domestic hot water max/min nominal calorific flow rate (Pci) Qn 5.0/5.5 30.0/6.5 38.0/7.5...

  • Page 10: Installation

    installation Reference Standards Flue In the United Kingdom, the installation and initial Detailed information on flue assembly can be found in the “Connecting the Flue” section. start-up of the boiler must be by a CORGI registered installer in accordance with the installation standards The boiler must be installed so that the flue terminal currently in effect, as well as with any and all local is exposed to the free passage of external air at all...
  • Page 11 installation The minimum acceptable clearances are shown below: - A Directly below an opening, window, etc 300 mm - B Horizontally to an opening, window, etc 300 mm - C Below gutters, soils pipes or drain pipes 75 mm - D Below eaves 00 mm - E From vertical drain pipe or soil pipe 75 mm...
  • Page 12 These include cleansers produced by Fernox voltage free contacts should be used. (page 6). BetzDearbon, whose function is to disolve any ARISTON supply a range of wired and wireless foreign matter that may be in the system. system controls. Contact your supplier for more In hard water areas or where large quantities of details.

  • Page 13: Condensate Discharge

    installation Condensate Discharge . External termination of condensate drainage pipe The condensate discharge hose from the boiler via internal discharge branch (e.g. sink waste) and must have a continuous fall of .5 and must be condensate trap. inserted by at least 50mm into a suitable acid resistant pipe - e.g.

  • Page 14: Installing The Boiler

    installation Installing the Boiler Please check that you are familiar with the installation requirement before commencing work (pages 7 - 13). The installation accessories described in the following list are included in the boiler packaging: - Hanging bracket - A paper template (showing the dimensions of the boiler with 5 mm side clearances) - Connection valves (compression) - Washers...

  • Page 15: Gas Connection

    installation Gas connection . Loosen the two screws on the front casing (b), pull it forwards and unhook it from the upper pins (c) Make sure, using the labels on the packaging and the 3. Lower the control panel (d) data plate on the appliance itself, that the boiler is 4.
  • Page 16 installation To calculate the size of the heating installation, refer If the thermostat cannot be installed, the underfloor to the "Available pressure" graph below. heating equipment must be protected by a thermos- Graph representing the available circulation pump tatic valve, or by a by-pass to prevent the floor from pressure ΔT20 reaching too high a temperature.

  • Page 17: Connecting The Flue

    installation Connecting the Flue Flue System The provision for satisfactory flue termi- nation must be made as described 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 18: Fitting The Coaxial Flue (Ø 60/100 Horizontal)

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

  • Page 19: Fitting The 5" Flue (Ø 80/15 Horizontal / Vertical)

    installation Clamp Screws Seal Fig. 4 Once the boiler has been positioned on the wall, it is ne- Fitting the 5” Flue (Ø 80 / 15 Horizontal/vertical) cessary to insert the Ø80/15 adaptor (Fig. 5) for both horizontal and vertical flue runs into the boiler flue soc- ket (not supplied with flue kit - Part No 3318095).

  • Page 20: Fitting The Coaxial Flue (Ø 60/100 Vertical)

    installation Fitting the Coaxial Flue (Ø 60 / 100 Vertical) Note: See table for maximum and minimum flue The vertical flue kit is supplied with a specially de- runs. signed weather proof terminal fitted, which can be used either with a flat roof or a pitched roof. Contents: 1x Silicone O-Ring (60mm) The vertical flue kits useable lengths with the...

  • Page 21: Fitting The Twin Pipe

    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 22 installation Fig. 9 AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST AIR INTAKE EXHAUST AIR INTAKE Fig. 10 For coaxial systems, the maximum flue lengths listed in the table (see page 3) take into account an elbow. For twin flue systems the maximum flue lengths listed in the table (see page 3) includes the exhaust gas/air intake terminal.
  • Page 23 installation Table of flue gas exhaust duct lengths EQUIVALENT DIAMETER COAXIAL SYSTEM FLUE TYPE LENGTH LENGTH of PIPE 45° 90° 1 m 60/100 36 m 80/15 Flue gas exhaust and air 10 m 60/100 suction duct through 30 m 80/15 external wall in the same range of pressure 60/100...
  • Page 24 installation EQUIVALENT DIAMETER TWIN-PIPE SYSTEM FLUE TYPE LENGTH LENGTH of PIPE 45° 90° 36 m (S1=S) Flue gas exhaust and air 30 m 80/80 suction duct through (S1=S) external wall in the same range of pressure 18 m (S1=S) 60 m C 33 (S1=S) Flue gas exhaust and...

  • Page 25: Electrical Connections

    installation WARNING - Rotate the control panel while pulling it forwards Before performing any work on the boiler, - Unscrew the three screws on the back cover of first disconnect it from the electrical power the instrument panel supply using the external bipolar switch and - Unhook the right side clip and the right front clip;...
  • Page 26 installation Room Thermostat / Remote Clock Connection heN coNNectiNg the boiler to exterNal coNtrols The boiler connections for external controls are 1V 240V do Not ruN cables for switchiNg circuits which DC and so only controls of 1V DC that have voltage are low Voltage together use seperate cables to free contacts should be used.

  • Page 27: Electrical Diagram

    installation Electrical diagram For increased safety, ask a qualified technician to perform a thorough check of the electrical system. The manufacturer is not responsible for any damage caused by the lack of a suitable earthing system or by the malfunctioning of the electricity mains supply. CN16 CN16...

  • Page 28: Commissioning

    Slowly open each draw off tap and close them ARISTON (GB) Limited support the Benchmark only when clear water, free of bubbles, is visible. initiative. On pages pages 53 and 54 of this manual the Benchmark Commissioning Checklist Gas Supply: and Service interval Record can be found.

  • Page 29: First Igniton Operation

    commissioning FIRST IGNITION OPERATION Date ......Installer ......1.

  • Page 30: Ignition Procedure

    commissioning Electricity supply - Check that the voltage and frequency of the electricity supply correspond to the data shown on the boiler data plate; - Make sure that the earthing connection is efficient. First ignition 1. Make sure that: - The gas valve is closed; - The electrical connection has been properly carried out.
  • Page 31 commissioning SETTING REGULATING THE CENTRAL HEATING IGNITION DELAY Adjust the central heating ignition delay 60° 70° 50° 80° 40° 90° Push ON/OFF button for 10 seconds, the red reset led blinks. on/o Pressing the RESET button, the green led blinks. Adjusting with the CH knob (Temporisation 0, 1, , 3, 4, 5, 6 minutes see table).

  • Page 32: Test Function And Combustion Analysis

    commissioning Test function and combustion analysis The boiler has two pressure taps to measure the com- bustion gas temperature, the combustive air and the concentrations of O and CO on the outside of the flue gas header. To access these pressure taps, unscrew the screw which holds the blanking cover and its seal to- gether.

  • Page 33: Boiler Protection Devices

    boiler protection devices Boiler protection devices Important If this shutdown occurs frequently, contact an The boiler is protected from malfunctioning by means of internal checks performed by the electronic authorised Technical Service Centre for assistance. For safety reasons, the boiler will permit a maximum microprocessor P.C.B., which stops the boiler from of 5 resets in 15 minutes (5 presses of the operating if necessary.

  • Page 34: Maintenance

    maintenance Important Checklist located on page 54 of this manual. Maintenance is an essential part of the safe and 14. These checks are not exhaustive. Further efficient operation of the boiler and ensures its mechanical, electrical combustion durability. It should be performed according to the maintenance checks may be required.
  • Page 35 maintenance Draining procedures If a smell of burning is detected or smoke is seen The heating system must be drained using the leaking from the appliance, or there is a smell of gas, following procedure: disconnect it from the electricity supply, shut off the - Switch off the boiler, make sure the external gas valve, open the windows and call for technical bipolar switch is in the OFF position;...

  • Page 36: General Access

    MAINTENANCE GUIDE 1. GENERAL ACCESS GENERAL ACCESS Tools Time 3 min Unclip the cover to remove Remove the two screws Remove the front panel Remove the combustion cham- Lower the electrical box ber front panel by releasing the clips...

  • Page 37: Electrical Unit

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 2. ELECTRICAL UNIT 2 ELECTRICAL UNIT CONTROL BOX ACCESS CONTROL BOX ACCESS Tools Time 4 min Remove the two screws and Remove the front panel as above unlock the four clamps to gain and pivot the electrical box access to the control box FUSE FUSE...

  • Page 38: Maintenance Guide

    MAINTENANCE GUIDE: CLAS HE MAINTENANCE GUIDE MAIN PCB MAIN PCB Tools Time 7 min After opening the control box, Unscrew the two screws and disconnect the electrical plug remove the PCB connectors DISPLAY PCB DISPLAY PCB DISPLAY PCB DISPLAY PCB Tools Time 7 min...

  • Page 39: Hydraulic Unit

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 3. HYDRAULIC UNIT 3 HYDRAULIC UNIT RIGHT HAND HYDRAULIC BLOCK ASSEMBLY LEGEND RIGHT HAND HYDRAULIC BLOCK ASSEMBLY 1. Diverter valve motor LEGEND 2. Diverter valve Diverter valve motor 3. Auto air vent Diverter valve 4.

  • Page 40: Automatic Air Vent

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE DRAINING DRAINING Tools Time 5 min Turn the drain valve anti-clockwise to open and drain the water from the boiler. AUTOMATIC AIR VENT AUTOMATIC AIR VENT Tools Time 5 min Drain boiler (see 3.3). Remove the clip and lift the AAV from the assembly PRIMARY WATER PRESSURE SENSOR PRIMARY WATER PRESSURE SENSOR...
  • Page 41 MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE PUMP PUMP Tools Time 10 min Disconnect the pipe and then Drain boiler (see 3.3). Remove move the pump to the right Remove the pump the clip and the two screws disengage Remove the sensor (see 3.5) Remove the AAV (see 3.4) MAINTENANCE GUIDE: CLAS HE CH FILTER...
  • Page 42 Drain boiler (see 3.3) Remove the filter MAINTENANCE GUIDE Remove the clip DHW FLOW SWITCH ASSEMBLY DHW FLOW SWITCH ASSEMBLY Tools Time 5 min Drain boiler (see 3.3). Remove the clip and pull the Twist the flow switch assembly to disengage flow switch assembly towards you 3.9 LEFT HAND HYDRAULIC BLOCK ASSEMBLY Page.

  • Page 43: Secondary Heat Exchanger

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 3.11 SECONDARY HEAT EXCHANGER 3.10 SECONDARY HEAT EXCHANGER SECONDARY HEAT EXCHANGER Tools Time 10 min Drain primary and domestic hot water circuits. Remove the two screws and remove the heat exchanger 3.11 CONDENSATE TRAP 3.12 CONDENSE TRAP CONDENSE TRAP Tools...

  • Page 44: Safety Valve

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 3.12 SAFETY VALVE 3.13 SAFETY VALVE SAFETY VALVE Tools Time 5 min Drain boiler (see 3.3). Disconnect the Remove the first clip on the left and discharge pipe pull the safety valve towards you 3.13 BY-PASS ASSEMBLY 3.14 BY-PASS ASSEMBLY BY-PASS ASSEMBLY...
  • Page 45 MAINTENANCE GUIDE 3.14 TEMPERATURE SENSOR MAINTENANCE GUIDE: CLAS HE Tools Time 5 min 3.15 TEMPERATURE SENSORS & OVERHEAT THERMOSTAT TEMPERATURE SENSORS & OVERHEAT THERMOSTAT Tools Time 5 min NTC1 NTC2 Unplug the electrical connectors Remove the clip and the tempe- NTC1 : Black wires rature sensor NTC : Grey wires...

  • Page 46: Main Heat Exchanger

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 3.16 MAIN HEAT EXCHANGEUR 3.17 MAIN HEAT EXCHANGER MAIN HEAT EXCHANGER Tools Time 20 min Drain boiler (see 3.3). Remove the four clips and disconnect the Isolate the gas supply. Remove pipes between Remove the four screws to free the four screws and disconnect exchanger pump...

  • Page 47: Burner Unit

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 4 BURNER UNIT LEGEND 1. Burner 6. Gas valve 2. Fan 7. Mixing tube 3. Silencer 8. Detection electrode 4. Gas inlet 9. Ignition electrode 5. Air inlet 10. Spark generator Page. 18 of 24...
  • Page 48 MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE SPARK GENERATOR SPARK GENERATOR Tools Time 5 min Unplug the ignition electrode from Remove the screw and the the spark generator spark generator ELECTRODES ELECTRODES Tools Time 5 min Remove the screws and pull the Unplug the electrodes electrodes towards you.
  • Page 49 MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE 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 Pull the burner toward you Remove the three screws to free Replace any gaskets that are damaged or showing signs of the burner door...

  • Page 50: Fan Unit

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE Tools Time 15 min 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 Fan & mixer venturi according to the model Power Venturi diameter 24 KW...

  • Page 51: Gas Valve

    MAINTENANCE GUIDE MAINTENANCE GUIDE: CLAS HE GAS VALVE GAS VALVE Tools Time 15 min Replacement gas valves are Remove the combustion Twist the gas valve anti-clockwise to not factory set and will need to assembly (see 4.3) disconnect it from the fan be set up (see page 32) Bayonet connection...

  • Page 52: Annual Maintenance

    MAINTENANCE GUIDE: CLAS HE MAINTENANCE GUIDE 5 ANNUAL MAINTENANCE 5 ANNUAL MAINTENANCE Plate heat exchanger Maintenance Interval: As necessary How: To measure specification of DHW performance. By-pass & Safety valve Maintenance Interval: Annually How: Visual inspection / Clean as necessary Central heating filter Maintenance Interval: Annually How: Visual inspection / Clean as necessary...

  • Page 53: 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. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.

  • Page 54: Benchmark Service Interval Record

    SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

  • Page 55: Spare Parts Short List

    SHORT LIST SHORT LIST E-COMBI Manf. date Key N Description Type Manf. Pt.N from 24 30 0100 BURNER ASSEMBLY 0110 61317432 IGNITION ELECTRODE 0111 61317433 IONIZATION ELECTRODE 0112 61314753 GASKET D:85-66.5-2.5 0134 60000286 ELECTRODE GASKET 0135 60000297 COMBUSTION CHAMBER LINING KIT 0136 60000623 DOOR GASKET...
  • Page 56 Professional Team Limited Ariston Thermo UK Ltd Suites 9 & 10, Plaza 56 Hughenden Avenue Blanchardstown Corporate Park  High Wycombe Ballycoolin Bucks HP13 5FT Dublin 15 Telephone: (01494) 755600 Telephone: (01) 810 373 Fax: (01494) 459775 Fax: (01) 810 377 Internet: www.aristonthermo.co.uk...

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