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

overview

INDEX Overview General Information.. 3 Advice for the Installer.. 4. CE Labelling... 4 Data Plate Symbols.. 4 Safety Regulations... 5 Product description Control Panel... 6 Overall View... 7 Overall Dimension... 8 Minimum Clearances... 8 Technical Information.. 9 Installation Reference Standards..10 Condensate Discharge...13 Installing the Boiler..14 Gas Connection..15 Water Connection..15 Instructions for Opening the Casing and Performing an Internal Inspection..15 Connecting the Flue...17 Fitting the Coaxial Flue ( 60/100 Horizontal).18. Fitting the 5 Flue ( 80/125 Horizontal / Vertical)19 Fitting the Coaxial Flue ( 60/100 Vertical)..20 Fitting the Twin Pipe ( 80/80)..21 Electrical Connections..25 Peripheral Unit Connection..25 Room Thermostat Connection..26 Outdoor Sensor Connection..26 Electrical Diagram..27 Commissioning Initial Preparation...28 Electricity Supply...28 Filling the Heating System...28 Filling of the DHW System...28. Gas Supply...28 Water Treatment...28 First Igniton Operation...29 Ignition procedure...30 Test Function and Combustion Analysis..32 Boiler Protection Devices Boiler Protection Devices..33 Anti-Frost Device...33 Table summarising error codes..33 Maintenance General Comments..34 General Access...36 Electrical Unit...37 Hydraulic Unit...39 Burner Unit...47 Fan Unit....50 Gas Valve...51. Annual Maintenance..52 Benchmark Commissioning Checklist.53 Benchmark Service Interval Record..54 Spare Parts Short List...55
These instructions are suitable for E-COMBI boilers : Do not forget the Log Book! The Benchmark Scheme Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturers instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference. Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information. To The Installer As part of the commissioning of this appliance it is vital that the Log Book is completed and given to the Householder. Please ensure that your customer is aware of the importance of keeping the Log Book safe as a record of the installation and the appliance service history. Please ensure that your customer is aware of the correct operation of the system, boiler and controls. ARISTON 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. Advice on installation or servicing can also be obtained by contacting the ARISTON Technical and Customer Service Departments at High Wycombe. TECHNICAL DEPARTMENT CUSTOMER SERVICE DEPARTMENT Tel: 8180 Tel: 9888 Fax: Fax: GUARANTEE The manufacturers guarantee is for 2 years from the date of purchase. The guarantee is invalidated if the appliance is not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To assist us in providing you with an efficient after sales service, please return the guarantee registration card enclosed with the boiler without delay. CAUTION In the United Kingdom, installation, start-up, adjustments and maintenance, must be performed by a competent person only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions provided. In the Republic of Ireland, the installation and initial start up of the appliance must be carried out by a Competent Person in accordance with the current edition of I.S.813 Domestic Gas Installations, the current Buidling Regulations, reference should also be made to the current ETCI rules for electrical installation. All CORGI registered installers carry a CORGI ID card, and have a registration number. Both should be recorded in your boiler Log Book. You can check your installer is CORGI registered by calling CORGI directly on:- 0485. Improper installation may cause damage or injury to individuals, animals and personal property for which the manufacturer will not be held liable. To ensure efficient and safe operation it is recommended that the boiler is serviced annually by a competent person. If it is known that a fault exists on the appliance, it must not be used until the fault has been corrected by a competent person.

10 Gas mbar Gas mbar 19

Legend : 1. Brand 2. Manufacturer 3. Boiler model - Serial number 4. Commercial reference 5. Certification number 6. Destination country - gas category 7. Gas setting 8. Installation type 9. Electrical data 10. Maximum domestic hot water pressure 11. Maximum heating pressure 12. Boiler type 13. NOx class / Efficiency 14. Input rating nominal heating 15. Power ouput heating 16. DHW specific flow rate 17. Boiler output efficiency 18. Input rating nominal DHW 19. Gases which may be used 20. Minimum ambient temperature for use 21. Max. central heating temperature 22. Max. domestic hot water temperature
Safety regulations Key to symbols: Failure to comply with this warning implies the risk of personal injury, in some circumstances even fatal. Failure to comply with this warning implies the risk of damage, in some circumstances even serious, to property, plants or animals. Install the appliance on a solid wall which is not subject to vibration. Noisiness during operation. When drilling holes in the wall for installation purposes, take care not to damage any electrical wiring or existing piping. Electrocution caused by contact with live wires. Explosions, fires or asphyxiation caused by gas leaking from damaged piping. Damage to existing installations. Flooding caused by water leaking from damaged piping. Perform all electrical connections using wires which have a suitable section. Fire caused by overheating due to electrical current passing through undersized cables. Protect all connection pipes and wires in order to prevent them from being damaged. Electrocution caused by contact with live wires. Explosions, fires or asphyxiation caused by gas leaking from damaged piping. Flooding caused by water leaking from damaged piping. Make sure the installation site and any systems to which the appliance must be connected comply with the applicable norms in force. Electrocution caused by contact with live wires which have been installed incorrectly. Damage to the appliance caused by improper operating conditions. Use suitable manual tools and equipment (make sure in particular that the tool is not worn out and that its handle is fixed properly); use them correctly and make sure they do not fall from a height. Replace them once you have finished using them. Personal injury from falling splinters or fragments, inhalation of dust, shocks, cuts, pricks and abrasions. Damage to the appliance or surrounding objects caused by falling splinters, knocks and incisions. Use electrical equipment suitable for its intended use (in particular, make sure that the power supply cable and plug are intact and that the parts featuring rotary or reciprocating motions are fastened correctly); use this equipment correctly; do not obstruct passageways with the power supply cable, make sure no equipment could fall from a height. Disconnect it and replace it safely after use. Personal injury caused by falling splinters or fragments, inhalation of dust, knocks, cuts, puncture wounds, abrasions, noise and vibration. Damage to the appliance or surrounding objects caused by falling splinters, knocks and incisions. Make sure any portable ladders are positioned securely, that they are suitably strong and that the steps are intact and not slippery and do not wobble when someone climbs them. Ensure someone provides supervision at all times. Personal injury caused by falling from a height or cuts (stepladders shutting accidentally). Make sure any rolling ladders are positioned securely, that they are suitably strong, that the steps are intact and not slippery and that the ladders are fitted with handrails on either side of the ladder and parapets on the landing. Personal injury caused by falling from a height. During all work carried out at a certain height (generally with a difference in height of more than two metres), make sure that parapets are used to surround the work area or that individual harnesses are used to prevent falls. The space where any accidental fall may occur should be free from dangerous obstacles, and any impact upon falling should be cushioned by semi-rigid or deformable surfaces. Personal injury caused by falling from a height. Make sure the workplace has suitable hygiene and sanitary conditions in terms of lighting, ventilation and solidity of the structures. Personal injury caused by knocks, stumbling etc. Protect the appliance and all areas in the vicinity of the work place using suitable material. Damage to the appliance or surrounding objects caused by falling splinters, knocks and incisions. Handle the appliance with suitable protection and with care. Damage to the appliance or surrounding objects from shocks, knocks, incisions and squashing. During all work procedures, wear individual protective clothing and equipment. Personal injury caused by electrocution, falling splinters or fragments, inhalation of dust, shocks, cuts, puncture wounds, abrasions, noise and vibration. Place all debris and equipment in such a way as to make movement easy and safe, avoiding the formation of any piles which could yield or collapse. Damage to the appliance or surrounding objects from shocks, knocks, incisions and squashing. All operations inside the appliance must be performed with the necessary caution in order to avoid abrupt contact with sharp parts. Personal injury caused by cuts, puncture wounds and abrasions. Reset all the safety and control functions affected by any work performed on the appliance and make sure they operate correctly before restarting the appliance. Explosions, fires or asphyxiation caused by gas leaks or an incorrect flue gas exhaust. Damage or shutdown of the appliance caused by out-of-control operation. Before handling, empty all components that may contain hot water, carrying out any bleeding if necessary. Personal injury caused by burns. Descale the components, in accordance with the instructions provided on the safety data sheet of the product used, airing the room, wearing protective clothing, avoid mixing different products, and protect the appliance and surrounding objects. Personal injury caused by acidic substances coming into contact with skin or eyes; inhaling or swallowing harmful chemical agents. Damage to the appliance or surrounding objects due to corrosion caused by acidic substances. If you detect a smell of burning or smoke, keep clear of the appliance, disconnect it from the electricity supply, open all windows and contact the technician. Personal injury caused by burns, smoke inhalation, asphyxiation.

product description

Control panel

on/off

Legend : 1. Green indicator : CH temperature and error indicator 2. ON/OFF button 3. Green indicator : ON/OFF 4. Pressure gauge 5. Winter / Summer switch - Heating temperature regulation knob 6. Domestic Hot Water adjustment knob 7. Time clock 8. Green indicator : flame ON Red indicator : lockout light 9. Yellow indicator : flashing error light 10. Reset button
product description Overall view
1. Flue connector 2. Manual air vent 3. Burner 4. Detection electrode 5. C.H. Return temperature probe 6. C.H. Flow temperature probe 7. Gas valve 8. Secondary heat exchanger 9. Trap 10. C.H. pressure relief valve 11. Electrical box 12. C.H. circuit filter 13. D.H.W. Flow switch
14. Circulation pump with auto air vent 15. Diverter valve 16. Low water pressure switch 17. Silencer (according to model) 18. Modulating fan 19. Ignition electrodes 20. Ignitor 21. Thermal fuse 22. Combustion analysis test point

Overall Dimensions

200 120

24/30/38

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 in accordance with the clearances stated to the left (opposite).

Technical Data

Model E-COMBI CE Certification (pin) Boiler type Max/min nominal calorific flow rate (Pci) Qn Max/min nominal calorific flow rate (Pcs) Qn Domestic hot water max/min nominal calorific flow rate (Pci) Qn Domestic hot water max/min nominal calorific flow rate (Pcs) Qn Max/min power output (80C-60C) Pn Max/min power output (50C-30C) Pn Domestic hot water max/min power output Pn Combustion efficiency (of flue gas) Nominal calorific flow rate efficiency (60/80C) Hi/Hs Nominal calorific flow rate efficiency (30/50C) (condensation) Hi/Hs Efficiency at 30% at 30C (condensation) Hi/Hs Efficiency at 30% at 47C Hi/Hs Minimum calorific flow rate efficiency (60/80C) Hi/Hs Efficiency rating (dir. 92/42/EEC) Sedbuk Band Rating Loss when stopped (T = 50C) Loss of burner gas when operating Available air pressure NoX class Flue gas temperature (G20) (80C-60C) CO2 content (G20) (80C-60C) CO content (0%O2) (80C-60C) O2 content (G20) (80C-60C) Maximum flue gas flow (G20) (80C-60C) Excess air (80C-60C) Expansion vessel inflation pressure Maximum heating pressure Expansion vessel capacity Maximum water capacity with in the appliance (75C-35C) Min/max heating temperature (high temperature range) Min/max heating temperature (low temperature range) Domestic hot water max/min temperature Specific flow rate of domestic hot water (T=30C) Quantity of hot water T=25C Quantity of hot water T=35C Hot water comfort rating (EN13203) Hot water minimum flow rate Domestic hot water max/min pressure Power supply frequency/voltage Total electrical power absorbed Minimum ambient temperature for use Protection level for the electrical appliance Weight 0085BR0347 B23-C13-C33-C43-C53-C83 22.0/5.5 28.0/6.5 31.0/7.5 24.4/6.1 31.1/7.2 34.4/8.3 25.0/5.5 30.0/6.5 38.0/7.5 27.8/6.1 33.3/7.2 42.2/8.3 21.6/5.2 27.4/6.2 30.3/7.3 23.5/5.8 29.5/6.9 33.1/8.0 25.0/5.0 30.0/6.0 38.9/7.1 97.9 97.9 98.0 98.0/88.2 98.0/88.2 97.6/87.9 107.0/96.4 105.3/94.8 106.9/96.3 108.0/97.3 110.3/99.3 107.2/96.5 101.0/90.9 98.2/88.4 103.1/92.8 95.0/85.5 95.6/86.1 96.8/87.2 **** A / 90.3 0.2 2.9.0 < 100 4.5 41.6.5 100/300 35/82 20/45 36/60 12.0 14.4 10.3 *** <2 7/0.3 230/+5 X5D 32 **** A / 90.1 0.1 2.9.0 < 100 4.5 49.6.5 100/300 35/82 20/45 36/60 15.0 18.0 12.9 *** <2 7/0.3 230/+5 X5D 35 **** A / 90,1 0.1 2.9.6 < 125 3,5 59.6.5 100/300 35/82 20/45 36/60 18.2 21.8 15.6 *** <2 7/0.3 230/+5 X5D 35,5

Safety Valve Discharge and Condense Outlet The pressure relief valve pipe is made of copper. It should terminate below the boiler safely outside the premises. Care should be taken that it does not terminate over an entrance or window or where a discharge of heated water could endanger occupants or passers by. Warning ! Do not apply heat to the copper safety valve outlet pipe whilst it is connected to the 3 bar safety relief valve. Fill the central heating and DHW system and bleed air from the system as described in the Commissioning instructions (page 28). The system should be carefully checked for leaks, as frequent refilling could cause premature system corrosion or unnecessary scaling of the heat exchanger. The pipe from the trap should be connected to a drain as described in the relevant regulations. Pay special attention not to bend the condensate silicone drain pipe is such a way as to interrupt the flow. Please only use drain pipe material compatible with condensate products (refer to BS 6798:2000). The condensate flow can reach 2 litres/hour because of the acidity of the condensate products (Ph close to 2), take care before operation. See page 13 for condensate discharge options.
Method of positioning the boiler on the wall The paper template can be used to ensure the correct positioning of kitchen cabinets etc. The paper template has to be fixed to the wall and used to locate the position of the hanging bracket and the centre for the flue hole. Drill and plug the wall and secure the hanging bracket using the screws provided ensure the hanging bracket is level. Remove the boiler from its packaging and remove the front casing panel. Place the boiler on the hanging bracket. Note: The appliance must not be fitted on a combustible wall surface. Connecting the boiler to the system - Remove the boiler casing as described on page 15 - Remove the caps and connect the valves to the boiler using the washers provided - 4 x fibre washers for the CH flow and return, cold water inlet and hot water outlet connections
- remove the 2 screws A from the transport bar - dispose of the transport bar and reassemble the fixing screws.
Gas connection Make sure, using the labels on the packaging and the data plate on the appliance itself, that the boiler is in the correct country and that the gas category for which the boiler was designed corresponds to one of the categories available in the country where it will be used. The gas supply piping must be created and measured out in compliance with specific legal requirements and in accordance with the maximum power of the boiler; you should also make sure that the shutoff valve is the right size and that it is connected correctly. Check that the supplied gas corresponds to the type of gas for which the boiler was designed (see the data plate located on the appliance itself ). It is also important to check that the pressure of the gas (methane or LPG) you will be using to feed the boiler is suitable, because if it is insufficient the power may be reduced, causing inconvenience for the user. Water connection The illustration below shows the connections for the water and gas attachments of the boiler. See valves configuration on page 14. Check that the maximum water mains pressure does not exceed 6 bar; if it does, a pressure reducing valve must be installed. For the measuring of the pipes and of the heating bodies in the heating system, the residual head value should be calculated as a function of the requested flow rate, in accordance with the values shown in the circulation pump graph.

2. Loosen the two screws on the front casing (b), pull it forwards and unhook it from the upper pins (c) 3. Lower the control panel (d) 4. Unhook the two clips on the combustion chamber panel and lift off (e).

D F A I C B H

A. Central heating Flow B. Domestic Hot Water Outlet C. Gas Inlet D. Domestic Cold Water Inlet E. Central Heating Return F. Safety Valve Discharge H. Drain Valve I. Drain condensate
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. To access the inside of the boiler, the following is necessary: 1. Remove the casing by unhooking it from the control panel (a)
To calculate the size of the heating installation, refer to the "Available pressure" graph below. Graph representing the available circulation pump pressure T20oC

1100 1200

If the thermostat cannot be installed, the underfloor heating equipment must be protected by a thermostatic valve, or by a by-pass to prevent the floor from reaching too high a temperature. Water circuit diagram

30-38 kW 30-35 kW

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! Insufficient water in the trap can temporarily cause the flue gas to be expelled into the surrounding ambient air.

G D F A I C B H

Underfloor heating For appliances with underfloor heating, fit a safety thermostat onto the underfloor heating outlet. For the electrical connection of the thermostat see the section on Electrical connections. If the outlet temperature is too high, the boiler will stop both domestic hot water and the heating production and the error code floor thermostat contact open. Flashing light (Green Leds Temperature indicador 40 and 70) will restart when the thermostat is closed during automatic resetting.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
Manual air vent Burner Detection electrode C.H. flow temperature probe C.H. return temperature probe Secondary heat exchanger C.H. pressure relief valve By-pass Drain valve Condensate trap C.H. circuit filter D.H.W. Flow switch Diverter valve Low water pres switch Circulation pump Expansion vessel Modulating fan Ignition electrodes Thermal fuse

Connecting the Flue Flue System The provision for satisfactory flue termination 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. It is important that the position of the terminal allows a free passage of air across it at all times. The terminal should be located with due regard for the damage or discolouration that might occur on buildings in the vicinity, it must also be located in a place not likely to Fig. 1 cause nuisance. In cold or humid weather water vapour may - A Directly below an opening, window, etc 300 mm condense on leaving the flue terminal. - B Horizontally to an opening, window, etc 300 mm The effect of such steaming must be consi- C Below gutters, soils pipes or drain pipes 75 mm - D Below eaves200 mm dered. - E From vertical drain pipe or soil pipe 75 mm If the terminal is less than 2 metres above a - F From internal or external corner 300 mm balcony, above ground or above a flat roof to 300 mm which people have access, then a suitable stain- - G Above ground, roof or balcony level - H From a surface facing the terminal2500 mm less steel terminal guard must be fitted. - I From a terminal facing a terminal2500 mm The minimum acceptable spacing from the ter- - J Vertically from a terminal on the same wall 1500 mm 300 mm minal to obstructions and ventilation openings - K Horizontally from an terminal on the same wall - L Fixed by vertical flue terminal are specified in Fig. 1. See table on page 23 4

See table

180 mm 118

Fig. 2

118 mm
Warning The exhaust gas ducts must not be in contact with or close to inflammable material and must not pass through 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. Ensure that the flue is supported and assembled in accordance with these instructions. Installation without extension

150 mm

Fig. 3 Installation with extension

* slope pente

slope mm par mtre * pente mm per metre Fitting the Coaxial Flue ( 60 / 100 Horizontal) Contents: 1x Silicone O-Ring (60mm) 1x Elbow (90) 2x Wall Seals (Internal & External) 1x Flue Pipe including Terminal (1 metre - 60/100) 2x Flue Clamps 4x Screws 2x Seals Once the boiler has been positioned on the wall, fit the rubber flue seal into the internal flue turret (see diagram opposite), insert the elbow into the socket and rotate to the required position. Note: It is possible to rotate the elbow 360 on its vertical axis. Using the flue clamp, seals and screws supplied (Fig 4) secure the elbow to the boiler. The 1 metre horizontal flue kit (3318073) supplied is suitable for an exact X dimension of 753mm. Measure the distance from the face of the external wall to the face of the flue elbow (X - Fig 2), this figure must now be subtracted from 753mm, you now have the total amount to be cut from the plain end of the flue. Draw a circle around the outer flue and cut the flue to the required length taking care not to cut the inner flue, next cut the inner flue ensuring that the length between the inner and outer flue is maintained. (Fig 4). e.g. X = 555mm 753-555 = 198mm (Length to be cut from the plain end of the flue). Once cut to the required length, ensure that the flue is free from burrs and reassemble the flue. If fitting the flue from inside of the building attach the grey outer wall seal to the flue terminal and push the flue through the hole, once the wall seal has passed through the hole, pull the flue back until the seal is flush with the wall. Alternatively, the flue can be installed from outside of the building, the grey outer seal being fitted last. Should the flue require extending, the flue connections are push fit, however, one flue bracket should be used to secure each metre of flue. Note: See table for maximum and minimum flue runs. In the event that extension pieces need to be shortened, they must only be cut at the male end and it must be ensured that the inner and outer flue remain flush.

Total length of Vertical Kit 1355 mm
Useable length of Vertical flue 690 mm*

Fig. 8

Fitting the Twin Pipe (80 / 80) When running the twin flue pipe vertically it can be converted back to coaxial flue to enable vertical termination with a coaxial kit by use the pipe bridge (Twin - Coaxial Adaptor - Part No. 3318089). It is not possible to terminate concentrically horizontally. Termination is only possible with separate air and exhaust terminals. When siting the twin flue pipe, the air intake and exhaust terminals must terminate on the same wall, the centres of the terminals must be a minimum of 280 mm apart and the air intake must not be sited above the exhaust terminal (refer to Fig. 10). The air intake pipe can be run horizontally, however, the terminal and the final 1 metre of flue must be installed either horizontally or with a slight fall away from the boiler to avoid rain ingress. It is also strongly recommended that the air intake pipe run be constructed of insulated pipe to prevent condense forming on the outside of the tube. The maximum permissible flue length for twin flue is dependent on the type of run used (see table on page 23). Note: See table for maximum and minimum flue runs. Where it is not possible to terminate the flue within the distance permitted for coaxial flues, the twin flue pipe can be used by fitting a special adaptor to the flue connector and using the aperture for the air intake located on top of the combustion chamber. 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: 1) Take the air intake cover off the top of the appliance 2) Assemble the flange on the header supplied with the boiler 3) Insert the header on the tube or the elbow up until the lower stop (you do not have to use the washer). 4) Insert the elbow/header in the boiler air intake hole and fasten it with screws. The twin flue pipes can be fitted with or without additional elbows and need no clamps, simply ensure that the red o-ring is inserted in the female end of the flue pipe and push the extension piece fully into the previous section of flue pipe or elbow. Check that the o-ring is not dislodged when assembling the flue (greasing the seal will aid assembly). For further information relating to flue runs not illustrated, please contact the Technical Department on 8180.

- Rotate the control panel while pulling it forwards - Unscrew the three screws on the back cover of the instrument panel - Unhook the right side clip and the right front clip; then lift the flap The following connections are located here: - the room thermostat 1. Modulating device connection (BUS) For connection of the modulating device accessed directly via the electronic PCB - see the wiring diagram on the next page. If there are several modulating devices, connect them in parallel.

H05V2V2-F

The appliance is supplied with a fly-lead already connected, this must be connected to a 240V supply fused at 3 amp it must give complete electrical isolation of the appliance, by use of a fused double pole isolator having a contact separation of at least 3mm in all poles or alternatively by means of a 3A fused three pin plug and unswitched shuttered socket outlet both complying with BS1363. The use of multiplugs, extension leads or adaptors is strictly prohibited. It is strictly forbidden to use the piping from the hydraulic, heating and gas systems for the appliance earthing connection. The boiler is not protected against the effects caused by lightning. If the boiler fuses need to be replaced, use 2A rapid fuses. Peripheral unit connection To access peripheral unit connections carry out the following steps: - Disconnect the boiler from the power supply - Remove the casing by unhooking it from the instrument panel Caution! For the connection and positioning of the wires belonging to optional peripheral units, please refer to the installation manuals of these units.
Room Thermostat / Remote Clock Connection The boiler connections for external controls are 12V DC and so only controls of 12V DC that have voltage free contacts should be used. The boiler connections for external controls are 12V DC and so only controls of 12V DC that have voltage free contacts should be used. To connect a room thermostat, it is necessary to: 1. Open the control panel 2. Loosen the cable clamp using a screwdriver and insert the wires leading from the room thermostat 3. Connect the wires to the terminals as indicated in the figure below, removing the link 4. If a remote time clock is to be fitted, (using a volt free switching time clock) connect the switching wires from the time clock following points 1 - 3 above (Disconnect internal time clock) 5. If using an external time clock and room thermostat, these must be connected in series as shown in diagram C, (Disconnect internal time clock) 6. Ensure that they are well connected and not subject to stress when the control panel is closed Note: When connecting the boiler to external controls, do not run 240V cables for switching circuits (which are low voltage) together use seperate cables to prevent induced voltage on the low voltage circuits.

result in the warranty becoming void. to carry out the flushing procedure will

FIRST IGNITION OPERATION

Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installer. . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Check the electrical supply.
2. Check the type of gas and change the gas if necessary.
Complete. . . . . . . . . . . . . . . . . . . .
3. Check the gas tightness.
6. Measure the gas inlet pressure.
5. Check the exhaust flue. See page 17
6. Fill the installation. See page 28
7. Check the hydraulic water tightness.

8. Spin the pump.

9. Set the heating power. See page 31
10. Set up heating controls
11. Balance the central heating circuit.
12. Check the boiler in DHW mode.
13. Adjust DHW flow rate on the boiler (if necessary).
14. Make a combustion rate with once pressing on RESET button during 5 sec.
15. Check the ionisation current.
16. Explain to the end user the the boiler operation.
17. At the time of commissioning,
complete all relevant sections of the Benchmark Checklist located on the inside back pages of this document. Complete. . . . . . . . . . . . . . .
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. Make sure that the green/yellow earthing wire is connected to an efficient earthing system; - Use a screwdriver to lift the cap on the automatic air relief valve; - Switch on the boiler (by pressing the ON/OFF button), the green led 3 will illuminate indicating that the boiler is ready to operate.

- - 2.

Turn the CH button 5 between min. and max position. The pump will start and the burner will attempt to light, after 7 seconds the boiler will lock out because there is no gas; the red Led 8 illuminates. Bleed the air from the radiators; The flue should be suitable and free from any obstructions; Open the gas cock and check the connection seals, including the boiler connection joints, making sure that the meter does not detect any passage of gas. Eliminate any leaks. Unlock the boiler by pushing the reset button. The burner will light, if the first start fails repeat the operation until the burner lights.
SETTING REGULATING THE CENTRAL HEATING IGNITION DELAY Adjust the central heating ignition delay
Green Leds Temperature indicator *
TAC 0 min 1 min 2 min 3 min 4 min 5 min 6 min

= no led lit = lit

* This LED is red
REGULATING THE MAXIMUM CENTRAL HEATING POWER & SOFT IGNITION Regulate the maximum central heating power (between minimum and maximum) to adjust the central heating power and the soft ignition : Adjust the setting on the front panel 1. 2. 3. 4. Push ON/OFF button for 10 seconds, the red reset led blinks. Adjusting with the CH knob the maximum CH power between 0 and 99 % (see table). Adjusting with the DHW knob the soft ignition between 0 to 99 % (see table). The percentage level is visualized by the green led. To store the new values of settings, it is enough to push ON/OFF button.
Green Leds Max adjustable power = no led lit Temperature indicator = lit and soft ignition *
0 to 39 % 40 to 49 % 50 to 59 % 60 to 69 % 70 to 79 % 80 to 89 % 90 to 99 % 24 kW 30 kW 38 kW G20 G31 G20 G31 G20 G31 45,67 70,69 45,67 70,69 45,67 70,69 NO 3,80 NO 4,50 NO 5,25 2,65 1,94 3,17 2,33 4,02 2,95 2,33 1,71 2,96 2,17 3,28 2,41 0,58 0,43 0,69 0,50 0,79 0,58
gas setting lower Wobbe index (15C, 1013 mbar) (MJ/m3) gas valve restrictor() max D.H.W gas flow max/min (15C, 1013 mbar) max C.H. (nat - m3/h) (GPL - kg/h) min

1. 2. 3.

Push ON/OFF button for 10 seconds, the red reset led blinks. Pressing the RESET button, the green led blinks. Adjusting with the CH knob (Temporisation 0, 1, 2, 3, 4, 5, 6 minutes see table).
Test function and combustion analysis The boiler has two pressure taps to measure the combustion gas temperature, the combustive air and the concentrations of O2 and CO2 on the outside of the flue gas header. To access these pressure taps, unscrew the screw which holds the blanking cover and its seal together.
Only a 2.5 mm allen key must be used. Do not use a screwdriver
Checking the gas setting To carry out analyses of combustion, the test function must be activated. Maximum gas flow combustion analysis Activate the test function at the maximum heating power, pushing for 5 seconds the RESET until the yellow led 9 blinks (also 60C led is lit to indicate that Chimney is at max. CH absolute) The rotate the CH knob to the min., intermediate position or max position its possible to switch between min, max CH absolute and max DHW power (respectively the 40C, 60C and 80C are lit to indicate the power level. The function is automatically deactivated after 10 minutes or by pressing the RESET button. Wait for the boiler to stabilise before carrying out the combustion analyses. Check the CO2 value according to the table below. Important: do not remove silencer 17
CO2 maximum minimum G20 G9,0 0,2 10,7 0,CO2 (%) 9,0 0,2 10,0 0,9,4 0,2 10,6 0,2
Minimum gas flow combustion analysis Activate the test function at minimum power in either heating or domestic hot water production. Wait for the boiler to stabilise before carrying out the combustion analyses. Check the CO2 value according to the table above. Important: do not remove silencer 17 N.B. When the combustion chamber is open, the CO2 value drops by 0.3%. If the values taken differ from the table, adjust the gas valve following the procedure described below. To adjust the CO2 value, remove cap 2, adjust the CO2 content to 0.2 by turning setting screw 51 (4 mm allen key) - unscrew to lower the CO2 value - tighten to increase the CO2 value Set the content by turning the screw about a 1/4 of a turn then wait after each change for approximately 1 minute for the CO2 value to stabilise, then repeat. Once the settings and analyses are complete, exit test mode by pressing Reset and reposition the blanking cover and its seal correctly.

N.B. When the front combustion chamber panel is open, the CO2 value drops by 0.3%. If the values taken differ from the table, adjust the gas valve following the procedure described below. Adjust the CO2 content to 0.2 by turning setting screw 50 (2.5 mm allen key) - tighten to lower the CO2 value - unscrew to increase the CO2 value Set the content by turning the screw about a 1/4 of a turn then wait after each change for approximately 1 minute for the CO2 value to stabilise, then repeat.
Only a 4 mm allen key must be used. Do not use a screwdriver
boiler protection devices
Boiler protection devices The boiler is protected from malfunctioning by means of internal checks performed by the electronic microprocessor P.C.B., which stops the boiler from operating if necessary. In the event of the boiler being shut off in this manner, the led code shows the type of shut-off and the reason behind it. There are two types of shut-off: Safety shut-off This type of error is volatile, which means that the boiler starts up again automatically as soon as the problem which caused the shut-off is removed; the yellow led 9 blinks and green CH temperature leds 1 indicate the error code- see table below. As soon as the cause of the shut-off disappears, the boiler starts up again and continues to operate normally. Note : In the event of insucient water pressure inside the heating circuit, the boiler will perform a safety shutoff (yellow led 9 blinks - leds 50-60 light see table). To re-pressurise the boiler, it will be necessary to connect the silver flexible hose supplied to the two isolating points underneath the boiler, once the hose is connected, open up both of the black quarter turn handles until the pressure reads 1.5 bar on the pressure gauge. If the pressure drops very frequently, there may be a water leak at some point in the system. Shutdown This type of error is non-volatile, which means that it is not removed automatically. The red led 8 light and green leds 1 indicate the error code- see table below. To restore normal operation press the button on the control panel. Important If this shutdown occurs frequently, contact an authorised Technical Service Centre for assistance. For safety reasons, the boiler will permit a maximum of 5 resets in 15 minutes (5 presses of the button). Anti-frost Device. When the electrical supply is turned on the anti-frost function acts on the central heating flow temperature probe, independently from other safety devices. If the primary circuit temperature is between 3C and 8C the pump will run (with the diverter valve switching between central heating and hot water every 1 minute) until the temperature reaches > 9C. If the flow temperature remains between 3C and 8C the pump will continue to run for a maximum of 20 minutes unless a temperature above > 9C is detected in the central heating flow, after this the burner will fire (heating position) until a temperature of > 30C is detected. If the central heating flow temperature is < 3C, the burner will fire (heating position) at minimum power until the temperature reaches > 30C, the burner will go out. If lockout is caused by overheat the burner will not fire but the pump will continue to run (heating position). The anti-frost device activates only when the boiler operating correctly : - the system pressure is correct; - the boiler is electrically powered; - there is a supply of gas.

Table summarising error codes
Green Leds Temperature indicator yellow Reset red X X

Description

Overheat Insufficient circulation Insufficient water (request filling) C.H. Flow temp. probe circuit open / short circuit C.H. Return temp. probe circuit open / short circuit External sensor circuit open / short circuit Floor thermostat contact open Heating delivery probe problem Insufficient circulation EEPROM error Communication error Too many (> 5) resets in 15 minutes Main P.C.B. error Room sensor circuit open / short circuit No flame detected Flame detected with gas valve closed Flame lift 1st Ignition Failed 2nd Ignition Failed Flame cut-off Thermofuse open Fan speed error
Note = flashing light = lit

maintenance

Important Maintenance is an essential part of the safe and efficient operation of the boiler and ensures its durability. It should be performed according to the instructions given in current legislation. Perform combustion analysis regularly in order to check the operating efficiency of the boiler and to make sure any polluting substances released are within the boudaries set by current legislation. Before beginning maintenance work: - Disconnect the appliance from the electricity supply by turning the external bipolar switch to the OFF position; - Remove the fuse; - Close the gas valve and the central heating and domestic hot water system valves. After the work has been completed the initial settings will be restored. General comments It is recommended that the following inspections be carried out on the boiler at least once a year: 1. Check the seals in the water part and, if necessary, replace the gaskets and restore the seal to perfect working order. 2. Check the seals in the gas part and, if necessary, replace the gaskets and restore the seal to perfect working order. 3. Visually check the overall condition of the boiler. 4. Visually check the combustion and, if necessary, disassemble and clean the burner. 5. Following the inspection detailed in point 3, disassemble and clean the combustion chamber, if necessary. 6. Following the inspection detailed in point 4, disassemble and clean the burner and injector, if necessary. 7. Cleaning the primary heat exchanger 8. Make sure the following heating safety devices are operating correctly: - temperature limit safety device. 9. Make sure that the following gas part safety devices are operating correctly: - absence of gas or flame safety device (ionisation). 10. Check the efficiency of the domestic hot water production process (test the flow rate and temperature). 11. Perform a general inspection of the boiler operation. 12. Remove oxide from the detection electrode using an emery cloth. 13. After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on page 54 of this manual. 14. These checks are not exhaustive. Further mechanical, electrical and combustion maintenance checks may be required. Operational test After having carried out the maintenance operations, fill the heating circuit at a pressure of approximately 1.5 bar and release the air from the system. Fill the domestic hot water system at the same time. - Begin operating the boiler. - If necessary, release the air from the heating system again. - Check the settings and make sure all the command, adjustment and monitoring parts are working correctly. - Check the flue system is sealed and operating correctly.

60000297 60000623

60000537 60000622

Ind 01 - 07/03/2008

61002249
61002105-60001130 65104234
Technical Advice: 8180 Customer Service: 9888
Technical Advice: (01) Customer Service: (01) 437 0121

420010127601 - 05/2009

Ariston Thermo UK Ltd Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: www.aristonthermo.co.uk
Professional Team Limited Suites 9 & 10, Plaza 256 Blanchardstown Corporate Park 2 Ballycoolin Dublin 15 Telephone: (01) Fax: (01) Internet: www.aristonthermo.ie