Instructions for installation and servicing For the heating engineer Instructions for installation and servicing ecoTEC ecoTEC plus ecoTEC pro GB, IE
Contents Contents 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 Introduction ................................................................4 Notes on the documentation ...................................4 Applicable documents ...............................................4 Retention of documents............................................4 Safety instructions and symbols.............................4 Validity of the manual ...............................................4 Introduction......................
Contents 6 6.1 6.1.1 6.1.2 6.1.3 6.1.4 6.2 6.3 7 7.1 7.1.1 Functional checks (commissioning part II).........................................47 Functional checks .....................................................47 Procedure ...................................................................47 Heating ........................................................................47 Water heating (combination boilers only) ..........47 Final flush of the heating system (“hot”) ...........
1 Introduction 1 Introduction 1.5 Validity of the manual This installation manual applies exclusively to units with the following part numbers: 1.1 Notes on the documentation The following information is intended to help you throughout the entire documentation. Further documents apply in combination with this installation and maintenance manual. We assume no liability for any damage caused by nonobservance of these manuals. 1.
Introduction boiler for central heating and domestic hot water (where a separate indirect hot water storage cylinder is also incorporated in the system). The ecoTEC system boiler consists of models with outputs of 12, 15, 18, 24, 30 and 37 kW. All ecoTEC system boilers are available in Natural Gas. The ecoTEC plus 618 and 630 are also available in LPG. 1.
1 1.10 Introduction Gas council numbers Applaince Gas council numbers ecoTEC pro 24 47-044-36 ecoTEC pro 28 47-044-30 ecoTEC plus 824 47-044-31 ecoTEC plus 831 47-044-32 ecoTEC plus 831 Propane 47-044-34 ecoTEC plus 837 47-044-33 ecoTEC plus 612 41-044-44 ecoTEC plus 615 41-044-45 ecoTEC plus 618 41-044-46 ecoTEC plus 618 Propane 41-044-51 ecoTEC plus 624 41-044-47 ecoTEC plus 630 41-044-48 ecoTEC plus 630 Propane 41-044-50 ecoTEC plus 637 41-044-49 Table 1.
Boiler specifications 2 2 2.1 Boiler specifications Technical data 824 ecoTEC plus 831 6.7 – 19.0 6.9 – 19.6 7.1 – 20.2 7.2 – 20.6 23.0 19 6.7 8.7 – 24.0 9.0 – 24.7 9.2 – 25.5 9.4 – 26.0 31.0 24 8.7 88.5 88.
2 Boiler specifications ecoTEC plus Technical data CH heat output range 80 °C flow/60 °C return 60 °C flow/40 °C return 50 °C flow/30 °C return 40 °C flow/30 °C return Category SAP Seasonal Efficiency Inlet gas working pressure required (G20, natural gas) Inlet gas working pressure required (G31, Propane) Connected load (if needed, related to stored charge/water heating) at 15 °C and 1013 (mbar) hPa Exhaust mass rate at minimum thermal load (40 °C flow/30 °C return at maximum thermal load (80 °C flow/60 °C
Boiler specifications 2 2.2 Dimensions 9 65 8 190 440 175 241 7 6 642 720 883 125 10 11 12 20 5 4 3 2 1 35 100 45 300 75 130 180 ecoTEC plus 630: 334 ecoTEC plus 637, ecoTEC plus 837: 368 35 100 5 4 3 2 1 Fig. 2.
2 Boiler specifications 2.3 Installation 14 14 1 13 2 1 3 13 2 4 3 4 5 12 5 12 11 6 11 7 10 7 9 8 Fig. 2.3 Function elements of system boilers 9 Fig. 2.2 Function elements of combination boilers Legend: 1 Expansion vessel 2 Air intake pipe 3 Burner module 4 Ignition electrode 5 Fan 6 Diverter valve with by-pass 7 Pump 8 Aqua-Sensor 9 Electronics box 10 Hot water heat exchanger 11 Gas valve 12 Pressure sensor 13 Heat exchanger 14 Flue pipe connection 2.
General requirements 3 3 3.1 General requirements Preliminary remarks for room sealed appliances This appliance should only be installed in conjunction with either a Vaillant flue system or an alternative approved system (details of flue approval categories can be found in the technical section of the installation manual). Install the flue system as detailed in the separate flue installation instructions supplied with this boiler. 3.
3 General requirements > Avoid the use of naked flames (e.g. lighters, matches). > Do not smoke. > Do not use any electrical switches, mains plugs, doorbells, telephones or other intercommunication systems in the building. > Close the gas meter isolator device or the main isolator device. > If possible, close the gas stop cock on the unit. > Warn other occupants in the building by yelling or banging on doors or walls. > Leave the building.
General requirements 3 1 8 1 8 2 7 2 7 3 6 4 5 3 6 4 5 Fig. 3.1 Contents included with delivery of ecoTEC plus system boilers Fig. 3.2 Contents included with delivery of ecoTEC plus combination boilers DO NOT remove the boiler from the polystyrene base at this stage. DO NOT remove the boiler from the polystyrene base at this stage.
3 General requirements 1 rent ETCI rules, in respect of the installation of a boiler in a room containing a bath or shower. 2 e Danger! Risk of death from electric shock when installing an appliance that is independent of ambient room air in a room with a bath or shower! If electric switches and controls are installed too close to a bath or shower, there is a risk of electric shock for the person using the facility.
General requirements 3 3.6.1 Standard 100 mm flue system 48 667 87 65 30 74 adhesives etc. contain the kind of substances that can lead to corrosion even in the exhaust system when the appliance is operated depending on the ambient air in the worst case scenario.
3 General requirements 1103 A G B F G BCD 70 F 70 H, I A 15 F F L K LK A G 650 Fig. 3.8 Flue termination 70 1530 880 A E Fig. 3.6 Art. No. 303 209 Fig. 3.7 Art. No. 303 200 3.7 J M i Vertical flues must not terminate within 600 mm of an openable window, air vent or any other ventilation opening. b Caution! Possible material damage caused by lubricating the seals! Mineral oil-based lubricants may damage the seals. The seals should therefore not be lubricated.
General requirements 3 The flue assembly shall be so placed or shielded as to prevent ignition or damage to any part of the building. Terminal position mm A Directly below an opening, above an opening or hori300 zontal to an opening, air brick, opening window, etc.
3 General requirements 3.10 Guide to system requirements 3.10.1 Water circulation system Detailed recommendations for the water circulation system are given in BS 6798 and BS 5449: Part 1 (for small bore and micro bore central heating systems). Pipework not forming part of the useful heating surface should be insulated to help prevent heat loss and possible freezing, particularly where pipes are run through roof spaces and ventilated underfloor spaces.
General requirements 3 Inform the operator of the necessary measures in case you have used any of these additives. Inform the operator of the required procedures for frost protection. Observe the applicable national regulations and technical standards for the treatment of filling and top-up water.
3 General requirements b b Caution! Risk of damage from aluminium corrosion resulting in leakages caused by unsuitable heating water! Unlike materials such as steel, cast iron or copper, aluminium is reactive to alkalised heating water (pH-value > 8,5) which results in significant corrosion. > With aluminium, ensure that the pH value of the heating water ranges between 6.5 up to a maximum of 8.5.
Lift [mbar] General requirements 3 400 300 200 1. Step 100 2. Step 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 Volumeflow [l/h] Fig. 3.10.2 Pump specifications only ecoTEC 637 and 837 Lift [mbar] only ecoTEC pro: The circulating pump is included in the boiler. The ecoTEC pro appliances are fitted with a single-stage pump. The residual pump discharge height depending on the by-pass valve is shown in Fig. 3.11.
4 Boiler installation sequence 4 4.1 Boiler installation sequence Transporting the appliance i With regards to the Manual Handling Operations, 1992 Regulations, the following lift operation exceeds the recommended weight for a one man lift. General recommendations when handling Clear the route before attempting the lift. Ensure safe lifting techniques are used – keep back straight – bend using legs. Keep load as close to body as possible. Do not twist – reposition feet instead.
Boiler installation sequence 4 Positioning of Appliance for Final Installation – in roof space restricting installation. This appliance is deemed to be a one person lift when removed from the carton. Obtain firm grip on front and sides of appliance, lift upwards, ensure stable balance achieved and lift upwards to drop into place onto bracket. If 2 persons positioning onto bracket obtain firm grip at front and sides/base of boiler.
4 Boiler installation sequence > The boiler can be correctly flued, i.e. the flue terminal position is located in accordance with these instructions and the air/flue duct can be installed in accordance with the flue installation instructions supplied. > All necessary pipework can be connected, including the pressure relief valve and condensate drain. 4.2.3 Using boiler template 20 4.2.
Boiler installation sequence 4 > Mark the position of the hanging bracket fixing holes. > Drill 2 holes Ø 10 mm for the hanging bracket. i 4.3 Use alternative fixing holes where necessary. Flue exit > If using rear flue mark the position of the air/flue duct and its circumference. Other flue options Flue instructions for other flue systems such as vertical RSF flues, flues run to the side of the boiler and the use of additional bends etc.
4 Boiler installation sequence 4.8 General instructions for heating system b Caution! Risk of damaged boiler caused by contaminated lines! Foreign bodies such as welding remnants, sealing residue or dirt in the water lines can cause damage to the boiler. > Flush the heating installation thoroughly prior to installation. – The appliance is fitted with an expansion vessel (10 l/(0.75 bar) 75 kPa). > Before assembling the appliance check if this volume is adequate.
Boiler installation sequence 4 4.10 Cold water mains inlet and hot water outlet (ecoTEC combination boilers only) 1 2 7 3 4 6 5 6 7 1 2 Fig. 4.5 Fitting the gas connection (example ecoTEC plus combination boiler) > Fit the union nut (2) and the compression olive (3) to the gas connection pipe (1) of the boiler. > Fit the union nut (6) and the compression olive (5) to the pre-formed tail provided with ecoTEC plus appliances (7).
4 Boiler installation sequence b i Caution! Risk of damage to isolation valves caused by heat transfer! If the final connections are soldered, the heat transferred during the process may damage the isolation valves. > Do not solder fittings to the pipes whilst connected to the isolation valves. > Cool and clean the pipes before fitting them into the valves. > Ensure all subsequent soldering operations are carried out at least 450mm away from the valves.
Boiler installation sequence 4 trap. If the connection is only possible upstream, then an air break is needed between the two traps. This is normally provided by the sink waste. c) terminating in a gully (5) below grid level (6) and above the water level. The external pipe length should be kept as short as possible to minimise the risk of freezing and should not be more than 3 m. d)at a condensate absorption point (soakaway) (7). The external pipe length should not be more than 3 m. 4.
4 Boiler installation sequence > Fit the union nuts (4) and (7) as well as the compression olives (3) and (8) to the pre-bended 22 mm copper tails (5) and (6). > Fully insert pipes (5) and (6) into the service valves. Tighten the union nuts in this position. > Fit the handle for the filling loop with a countersunk screw to the service valve (9). ecoTEC pro combination boiler > Fit a union nut (4) and a compression olive (3) to the 22 mm pre-bended copper tail (5).
Boiler installation sequence 4 b Caution! Risk of poisoning from escaping exhaust gas! If the condensate trap is not filled with water before the boiler is switched on, exhaust gas may escape through the trap. > Install the discharge pipework so as not to interfere with the removal and refitting of the condensate trap. > Do not shorten the discharge pipe for the pressure release valve supplied. > Leave a bottom clearance of at least 180 mm below the condensate trap for removal and refitting. 4.
4 Boiler installation sequence e Danger! Risk of electrocution as a result of an improper electrical connection! An improper electrical connection may negatively affect the operational safety of the boiler and result in material damage or personal injury. > The electrical connection must be carried out by a suitably qualified competent person who is responsible for complying with the existing standards and guidelines. > > Connect the boiler in accordance with BS 7671 (IEE Regulations).
Boiler installation sequence 4 - + 7 89 L N 3 45 - + 7 89 L N 3 45 Fig. 4.14 Wiring system > Connect the flex to the L, N and earth plug to the terminal block. Green/yellow (earth) wire – boiler terminal Earth sign Blue (neutral) wire – boiler terminal N Brown (live) wire – boiler terminal L i i Do not connect any power voltage to the connections 7-8-9 or BUS (+,-). Ensure that the wires are securely fixed in the terminal block.
4 Boiler installation sequence 4.14.3 Electric board layout eBUS accessory connection Burner cable harness Accessory module connection Diagnosis via eBUS, vrnetDIALOG outer probe ext.
Boiler installation sequence 4 NTC return NTC flow Ignition electrode X 20/5 red X 20/7 black X 20/8 blue X 20/7 black X 20/13 black Thermal fuse X 20/12 black Gas valve assembly Fan unit Plug in coupling X 20/16 blue (earth) X 20/4 grey (PWM) X 20/3 black (Hall signal) X 20/18 red (24 VDC) X 20/17 red (24 VDC) X 20/9 blue (earth) X 2/16 black A X 2/7 pink B X 2/15 brown C Water pressure sensor X 2/8 blue D Diverter valve X 2/9 black X 2/11 red X 2/12 green Pump Aqua sensor X 2/4 orange X 2/3
4 Boiler installation sequence NTC return NTC flow Ignition electrode X 20/5 red X 20/7 black X 20/8 blue X 20/7 black X 20/13 black Thermal fuse X 20/12 black Fan unit Gas valve assembly Plug in coupling X 20/16 blue (earth) X 20/4 grey (PWM) X 20/3 black (Hall signal) X 20/18 red (24 VDC) X 20/17 red (24 VDC) X 20/9 blue (earth) X 2/10 black Hot water contact C1/C2 X 2/14 brown Pump Water pressure sensor X 2/9 black X 2/11 red X 2/12 green X 2/4 orange tank NTC connection X 2/10 black X2
Boiler installation sequence 4 4.15 Controls 4.15.1 Vaillant controls and accessories Controller Item no.
4 Boiler installation sequence 4.15.3 Connection details for external time switches and boiler terminal strip 20 VDC 7 8 9 (DO NOT USE 7, 8, 9 IN UK!) L N 5 3 4 N L SWITCH CONTACTS 3 A FUSE ROOM THERMOSTAT the room containing the room thermostat should not be fitted with a TRV). 4.17 Frost protection The boiler has an integral frost thermostat which is designed for protection of the boiler.
Commissioning Part I 5 5 5.1 Commissioning Part I i Preliminary electrical checks Check the electrical installation by carrying out short circuit, earth continuity and resistance to earth tests and a check for correct polarity. 5.2 Gas supply The complete gas installation including the gas meter must be inspected, checked for leaks and purged in accordance with BS 6891. In IE the current edition of IS 813.
5 Commissioning Part I 5.4.2 ecoTEC plus combination boiler filling loop 4 3 Fig. 5.3 Double check valve detached while heating 5.4.3 1 2 Fig. 5.2 Filling device ecoTEC plus combination boiler The ecoTEC plus combination boiler will be delivered with a filling loop. > Insert the double check valve (1) of the filling pipe at the cold water shutoff valve and secure the double check valve with the spring clip (2). > To fill, first open the stop valve (3).
Commissioning Part I 5 > Slowly open the filling valve and let the water flow into the heating system. Bleed the lowest radiator until the water flows out at the bleed valve without bubbles. > Bleed all other radiators until the heating system is completely filled with water, all bleed valves have been shut and the manometer pointer is in the centre of the dark grey area. Bleed the heating pump by loosening the central screw. Close the filling valve and the cold water dispensing valve.
5 Commissioning Part I 5.8 Adjusting the by-pass The appliances have an adjustable by-pass valve. The pressure can be adjusted between 170 and 350 (mbar) hPa. Approx. 250 (mbar) hPa is preset (midposition). The pressure changes by approx. 10 (mbar) hPa each time the adjusting screw is rotated. By turning right, the pressure increases and turning left decreases it. 1 5.
Commissioning Part I 5 5.9.1 Checking for tightness of the flue gas installation and flue gas recirculation > Check the integrity off the flue gas installation according to TB 200. > Should the flue gas installation be longer than 2 m we strongly recommend to check the system for flue gas recirculation as described below. > Ensure that all other gas appliances in the property are turned off. > Measure the gas flow rate at the gas meter. > Check that the gas flow rate is as stated in Table 5.1.
5 Commissioning Part I Gas flow rate Nominal net heat input in kW as per BS EN 483 nominal + 5% - 10% nominal + 5% - 10% ecoTEC plus 612 12.2 1.29 1.36 1.16 0.95 1.00 0.85 ecoTEC plus 615 15.3 1.62 1.70 1.46 1.19 1.25 1.07 1.29 Boiler Natural gas in m3/h Propane in kg/h ecoTEC plus 618 18.4 1.95 2.04 1.75 1.43 1.50 ecoTEC plus 624 24.5 2.59 2.72 2.33 1.90 2.00 1.71 ecoTEC plus 630 30.6 3.24 3.40 2.91 2.38 2.50 2.14 ecoTEC plus 637 37.8 4.00 4.20 3.
Commissioning Part I 5 Fig. 5.8 Measuring the gas inlet working pressure > Loosen the sealing screw marked “in” (1) on the gas valve. > Connect a digital pressure gauge or U-tube manometer (2). > Open the gas isolation valve of the boiler. > Start the boiler by activating the test program P.1 as described in section 8.2. > In addition, ensure that maximum heat can be dissipated into the heating system by turning up the room thermostat.
5 Commissioning Part I Natural gas (G20) ecoTEC appliance ecoTEC plus 612/615/618/624/630 824/831 LPG (G31) Minimum pressure at reference test point in (mbar) hPa Maximum pressure at reference test point in (mbar) hPa Minimum pressure at reference test point in (mbar) hPa Maximum pressure at reference test point in (mbar) hPa 16 23 32 43 15 23 32 43 ecoTEC pro 24/28 ecoTEC plus 637/837 Table 5.
Commissioning Part I 5 5.10 Refitting the case 2 1 > Press the “i” and “+” buttons simultaneously to cancel adjustment mode. Adjustment mode is also cancelled if no button is operated for a period of 4 minutes. Appliance ecoTEC plus 612 ecoTEC plus 615 ecoTEC plus 618 ecoTEC plus 624 ecoTEC plus 630 ecoTEC plus 637 ecoTEC plus 824 ecoTEC plus 831 ecoTEC plus 837 ecoTEC pro 24 ecoTEC pro 28 Heating output in kW 5 – 12 5 – 15 7 – 18 9 – 24 10 – 30 12 – 37 7 – 19 9 – 24 12 – 28 7 – 19 9 – 24 Table 5.
6 Functional checks (commissioning part II) 6 Functional checks (commissioning part II) the appliance is running correctly in normal mode and the display shows “S. 4”. plus 6.1 Functional checks 6.1.1 Procedure After installing and checking the gas supply pressure, perform a function check before commissioning the appliance and handing over to the user. > Commission the appliance according to the relevant operating manual.
Functional checks (commissioning part II) 6 > Shut off the appliance, open the drain valve and all bleed valves on the radiators and allow the water to flow out of the heating system and the boiler quickly and fully. > Close the drain valve. > Fill the heating system again with water as described in Section 5.4.4. > Release water from the system until the system design pressure of (1.0 bar) 0.1 MPa is attained. (The actual reading on the digital pressure gauge should ideally be (0.5 bar) 0.
7 Inspection and maintenance 7 7.1 Inspection and maintenance Inspection and maintenance intervals a a Danger! Risk of injury and risk of damage to property due to neglected inspection and maintenance! Neglected inspection and maintenance works or not observing the stated inspection and maintenance intervals can interfere with the operational safety of the boiler and can result in damage to property and to persons.
Inspection and maintenance 7 During any inspection and maintenance or after change of parts of the combustion circuit, the following must be checked: > When removing any water carrying components ensure that water is kept away from all electrical components. - The appliance has been installed in accordance with the relevant installation instructions. - The integrity of the flue gas installation and flue seals is in accordance with the relevant flue installation instructions enclosed.
7 Inspection and maintenance 7.1.4 4 Adjusting the CO2 concentration (or the air ratio) 1 3 a 2 Fig. 7.1 Measuring the CO2 concentration, specifying the air ratio (gas setting) Legend: 1 Main throttle 2 Screw 3 Air intake pipe 4 Flue gas analysis point i > > > > > > 52 The boiler is fitted with a flue gas analysis point (4). A suitable flue gas analyser can be connected to this point to establish the combustion performance of the boiler. Remove the front casing. Start the testing program P.1.
Inspection and maintenance 7 Settings Natural gas (H) Propane Tolerance Tolerance CO2 after 5 min. full load mode with appliance front closed CO2 after 5 min. full load mode with appliance front removed Set for Wobbe-Index W0 CO value with full load CO/CO2 Unit 9.2 1,0 10.2 0,5 Vol.–% 9.0 1,0 10.0 0,5 Vol.–% 15 < 250 < 0,0031 22.5 < 250 < 0,0026 kWh/m3 ppm Table 7.1 Factory gas setting a Danger! Risk to life due to poisoning! CO is an extremely toxic gas.
7 Inspection and maintenance 7.1.5 Inspection and maintenance work steps Column 2 Maintenance Column 1 Insmust be carried pection must be out at regular carried out each intervals – but year no longer than 5 years No. Activity Check the air flue gas installation for leaks and for proper fixation and ensure it is not blocked or damaged and is fitted correctly, complying with the relevant installation instructions. 2 Carry out a general inspection of the boiler for dirt and dust and clean as necessary.
Inspection and maintenance 7 7.2 Servicing the burner module 7.2.1 Removing the burner module The burner module consists of the burner, fan, gas valve and the gas supply (mixer tube). These four components make up the complete assembly, the burner module. a 1 2 Danger! Risk of being burned or scalded by hot components! There is danger of being burned or scalded at the burner module and at all water-carrying components. > Only carry out work on these components if they have cooled down.
7 Inspection and maintenance 7.2.2 4 10 Cleaning the integral condensation heat exchanger b 9 5 Caution! Risk of damage from water spray! If you fail to protect the electronics box adequately, water can penetrate the box during cleaning and may damage the electronics. > Protect the folded down electronics box against sprayed water. 1 6 8 7 Fig. 7.3 Dismantling burner module > Disconnect HT lead (5) and earth lead (6) from spark electrode. > Remove four nuts (4) from burner manifold.
Inspection and maintenance 7 7.2.3 Checking the burner 4 10 1 9 5 Fig. 7.5 Checking burner 6 The burner (1) is maintenance-free and needs no cleaning. > Check the burner surface for damage, replace the burner if necessary. > After checking/replacing the burner, re-assemble the burner module in the boiler as described in Section 7.2.4. 8 7 Fig. 7.7 Refitting the burner module 7.2.4 Refitting the burner module 1 Fig. 7.6 Replacing the burner door seal > Insert a new seal (1) in the burner door.
7 Inspection and maintenance > Reconnect the gas supply (3) to the gas valve, ensuring that a new sealing washer is used and correctly located. Use the spanner flat at the flexible gas line to hold the gas fittings. > Remove the lower part (1) of the condensate siphon by turning the bayonet catch in anticlockwise direction. > Clean the siphon part section by rinsing it out with water. > Fill the lower part with water until about 10 mm below the upper edge.
Inspection and maintenance 7 > Check gas flow rate as previously detailed. > Check for water leaks. > Refit case, ensuring that a good seal is obtained. 7.6 Test operation Always perform the following checks after completing any maintenance task: > Commission the appliance according to the relevant operating manual. > Check the appliance for gas and water leaks. > Check the air/flue gas installation for leaks, check its fastening. > Check for ignition and an even flame on the burner.
8 Troubleshooting 8 8.1 Troubleshooting The display shows the status code, e.g. S.4 for “Burner mode - Heating”. Logical fault finding procedure These checks must be carried out before attempting to use the fault finding guide. 1. Carry out electrical safety checks (see section ‘Preliminary Electrical Checks’). 2. Check that the external electricity supply to the boiler is on, and a supply of 230 V~ is present between boiler terminals ‘L’ and ‘N’. 3.
Troubleshooting 8 Display Meaning Heating mode (all models): S. 0 S. 1 S. 2 S. 3 S. 4 S. 5 S. 6 S. 7 S. 8 No heat demand Fan running Water pump running Ignition sequence Burner ignited Fan and pump running Fan over run Pump over run Anti cycling mode Domestic hot water mode (ecoTEC combination boilers only): S.10 S.11 S.13 S.14 S.15 S.16 S.
8 Troubleshooting Display Meaning Display value/adjustable value d. 0 Heating part load Adjustable heating part load in kW (factory setting: max. output) d. 1 Water pump over run time for heating mode 2 - 60 min (factory setting: 5 min) d. 2 d. 3 d. 4 d. 5 Max.
Troubleshooting 8 Display Meaning Display value/adjustable value d.36 Hot water flow sensor in l/min d.40 Flow temperature Actual value in °C d.41 Return temperature Actual value in °C d.44 Digitised ionisation potential Display range of 0 to 102, > 80 no flame, < 40 even flame d.47 Outside temperature (with weather compensating Vaillant controller only) Actual value in °C d.67 Remaining burner anti cycling time in min d.76 Appliance variant (device specific number) 00 to 99 d.
8 Troubleshooting Display Meaning Display value/adjustable value d.50 Offset for minimum speed in rpm/10, adjustment range: 0 to 300 d.51 Offset for maximum speed in rpm/10, adjustment range: -99 to 0 d.58 From the third quarter of 2006: Activation of solar reheating Setting range: 0 to 3 0 = solar reheating disabled (factory setting) 3 = activation of min. hot water target value = 60 °C for solar reheating Quantity d.60 Number of safety temperature limiter cut offs d.
Troubleshooting 8 8.1.4 Fault memory The fault memory stores details of the ten most recent faults. > Press the ”i” and ”–” buttons simultaneously. > Use the ”+” button to scroll back through the list of memorised errors. To cancel fault error memory display mode, proceed as follows: > Press the ”i” button below the display or > Do not touch any key for about four minutes. The display will now revert back to showing the current flow temperature.
8 Troubleshooting Code Meaning F. 0 Flow–NTC open circuit Cause F.10 Flow NTC short circuit NTC broken, NTC cable broken, Defective connection at NTC, Defective connection at electronics NTC broken, NTC cable broken, Defective connection at NTC, Defective connection at electronics NTC defective, short circuit in cable harness, cable/casing shortcut F.11 Return NTC short circuit NTC defective, short circuit in cable harness, cable/casing shortcut F.13 Tank NTC short circuit F.
Troubleshooting 8 8.2 Test programs Special functions can be triggered on the appliances by activating various test programs. These programs are given in detail in the Table 8.5. > The test programs P.0 to P.6 will be started when “Power ON” is turned on and the “+” key is pressed for 5 s. The display shows “P.0”. > Press the “+” key to start counting the test number upwards. > Press the “i” to operate the appliance now and to start the test program.
9 Parts replacement 9 Parts replacement The tasks listed below in this section may be carried out only by a competent person approved at the time by the Health and Safety Executive and in accordance with the Gas Safety (Installation and Use) Regulations 1998. > Only use genuine spare parts for repairs. > Make sure the parts are correctly fitted and that their original position and alignment are retained. 9.1 9.
Parts replacement 9 > After completing the work, check for gas leaks and perform a function check (see section 7.6). 9.4 1 2 4 Replacing expansion vessel a Danger! Risk of personal injury and/or material damage as a result of improper installation! You need to follow the corresponding safety instructions in order to safely replace the component. > Before replacing the component, comply with the safety instructions in section 9.1.
9 Parts replacement > Pull out the expansion vessel (3) forwards. > Guide the new expansion vessel back into the appliance. > Re-connect the new expansion vessel using a new seal. > Refix the retaining plate. > Check the pressure of the expansion vessel (minimum pressure (0.75 bar) 75 kPa). If necessary, adjust the pressure to the static height of the heating system. > Fill and vent the boiler. > After completing the work, check for water leaks and perform a function check (see section 7.6). 9.
Parts replacement 9 > Disconnect the plug-in connection (2) of the thermal fuse in the primary heat exchanger. > Remove the three screws (3) on the primary heat exchanger holder. > Turn the holder to the side around the rivet (1), pull the primary heat exchanger downwards to the right and remove it from the appliance. > Mount the new primary heat exchanger in reverse order and replace the seals.
10 Recycling and disposal 10 Recycling and disposal Both the Vaillant ecoTEC and the associated transport packaging consist primarily of recyclable raw materials. The Vaillant ecoTEC and all accessories and packaging must not be disposed of in the normal household rubbish. Make sure that the old unit and any existing accessories and the transport packaging is handed over to a proper disposal organisation.
Vaillant service 11 11 Vaillant service To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Contact Vaillant Service Solutions (0870 6060 777) for further details.
EC declaration of conformity EC declaration of conformity 74 Instructions for installation and servicing ecoTEC 839592_13
Installation, Commissioning and Service Record
Please affix the label from the top of the boiler over this area. Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This does not affect the customer’s statuatory rights.
Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Interval 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. Always use the manufacturer’s specified spare part when replacing controls. Service 1 Date: Service 2 Date: Engineer Name: Engineer Name: Company Name: Company Name: Telephone No.
Manufacturer 839592_13 GBIE 012012 – Subject to change Supplier
