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ecoTEC plus

1. X25 x24 28l z 2 z 2 x z z X24 X2 X100 7 z o l X16 3 3 x16 N x11 k X18 N x1 Le 1 Main PCB 4 Mass flow sensor Operator control panel PCB 5 Outside temperature sensor flow temperature Gas valve sensor optional external DCF receiver 0020209591_00 ecoTEC plus Installation and maintenance instructions 55 6 Circulation pump remote control 15 Water pressure sensor 7 Power coding resistor 16 Impeller sensor 8 Return temperature sensor 17 Warm start sensor 9 Flow temperature sensor 18 Hot water sensor 10 Fan 19 Gas group coding resistor 11 Contact thermostat burner off 20 Auxiliary relay select via D 026 12 24 V DC room thermostat 21 Internal pump 13 Bus connection digital room thermostat controller 22 Ignition electrode 14 Diverter valve ij Depending on product type F Inspection and maintenance work Overview The table below lists the manufacturer requirements with respect to minimum inspection and maintenance intervals If na tional regulations and directives require shorter inspection and maintenance intervals you should observe these instead of the intervals listed in the table Mainten Inspection vidi No Work pecs At least annual i every five years Check
2. Main PCB 4 Mass flow sensor Operator control panel PCB 5 Outside temperature sensor flow temperature Gas valve sensor optional external DCF receiver 0020209591_00 ecoTEC plus Installation and maintenance instructions 53 N OD 11 12 13 14 54 Circulation pump remote control Power coding resistor Return temperature sensor Flow temperature sensor Fan Contact thermostat burner off 24 V DC room thermostat Bus connection digital room thermostat controller Diverter valve 15 16 17 18 19 20 21 22 Installation and maintenance instructions ecoTEC plus 0020209591_00 Water pressure sensor Impeller sensor Warm start sensor Hot water sensor Gas group coding resistor Auxiliary relay select via D 026 Internal pump Ignition electrode Depending on product type E 4 Connection diagram product with integrated hot water generation 2 37 kW H X25 DAON X41 X20 X100 X40 X51 X35 X20 X2 gt x lt N N
3. H 1 Positioning of the opening of a fan supported flue gas pipe Installation site sr dimen A Directly below an opening air bricks opening windows etc that can be opened 300 mm B Above an opening air bricks opening windows etc that can be opened 300 mm Horizontally to an opening air bricks opening windows etc that can be opened 300 mm D eae temperature sensitive building components e g plastic gutters down pipes or wastewater 75 mm pipes E Below eaves 200 mm F Below balconies or car port roofs 200 mm G From vertical wastewater pipes or down pipes 150 mm H From external or internal corners 200 mm l Above floors roofs or balconies 300 mm J From a surface facing a terminal 600 mm K From a terminal facing a terminal 1200 mm L From an opening in the car port e g door window which leads into the dwelling 1200 mm M Vertical from a terminal on the same wall 1500 mm N Horizontal from a terminal on the same wall 300 mm O From the wall on which the terminal has been installed 0 mm P From a vertical structure on the roof N A Q Above the roof area 300 mm R Horizontal from adjacent windows on pitched or flat roofs 600 mm S Above adjacent windows on pitched or flat roofs 600 mm T Below adjacent windows on pitched or flat roofs 2000 mm 62 Installation and maintenance instructions ecoTEC plus 0020209591_00 l Text from BS 5440 1 on fan supported flue gas pipes
4. Nominal value ir H gas in m h P gas in kg h the net heat supply in kW in gece ape Nom 5 10 Nom 5 10 with BS EN 483 12 1 31 1 38 1 18 0 96 1 01 0 86 15 1 64 1 72 1 48 1 20 1 26 1 08 18 1 97 2 07 1 77 1 44 1 51 1 30 24 2 61 2 74 2 35 1 92 2 02 1 73 30 3 27 3 43 2 94 2 40 2 52 2 16 37 4 03 4 23 3 63 2 96 3 11 2 66 25 2 72 2 86 2 45 2 00 2 10 1 80 32 3 41 3 58 3 07 2 52 2 65 2 27 35 3 78 3 97 3 40 2 78 2 92 2 50 38 4 15 4 36 3 73 3 05 3 20 2 75 24 Conditions Gas flow rate not in the permissible range gt Check all of the piping and ensure that the gas flow rates are correct gt Only put the product into operation once the gas flow rates have been corrected Conditions Gas flow rate in the permissible range gt End the check programme P 01 gt Allow the boiler to cool down by allowing pump overrun to operate for a minimum of two minutes gt Record the boiler maximum gas flow rate onto the Benchmark gas boiler commissioning checklist 7 15 4 Checking the gas flow pressure 1 Ensure that the gas inlet working pressure can be obtained with all other gas appliances in the property working 2 Close the gas isolator cock 3 Use a screwdriver to undo the measuring nipple screw 1 lower screw at the gas valve 4 Conn
5. gt Perform the gas family check as part of routine product maintenance work after replacing components carrying out work on the gas route and following gas conversion 20 7 7 Result Meaning Measure F 92 See the table of See the table of fault fault codes in the codes in the appendix appendix Successful Combustion None quality is good Unit configur ation matches the specified gas group Warning Combustion Start check programme quality inad P 01 and adjust the equate COz content with the CO content is adjusting screw in the incorrect Venturi If the correct CO2 con tent cannot be set Check that the gas re strictor is correct yellow G20 natural gas blue G25 natural gas grey Liquid gas and undam aged Repeat the gas family check F 93 See the table of See the table of fault fault codes in the codes in the appendix appendix Note It is not possible to perform COz measure ments during the gas family check Using check programmes Menu gt Installer level Test programs gt Check pro grams Display P 00 Meaning Purging check programme The internal pump is cyclically actuated The heating circuit and the hot water circuit are purged via the automatic air vent the cap of the automatic air vent must be released 1 x Start heating circuit purging 2 x tl Start hot water circuit purging 3 x O A i Restart heati
6. P 00 Purging Yes No P 01 Maximum load Yes No P 02 Minimum load Yes No P 06 Filling mode Yes No Installer level gt Test programs gt Function menu gt T 01 Internal pump On Off T 02 3 way valve On Off T 03 Fan On Off T 04 Cyl charging pump On Off T 05 Circulation pump On Off T 06 External pump On Off T 08 Burner On Off Installer level gt Test programs gt Electronics self test gt Self test Yes No Installer level gt Appliance config gt Language Deutsch English Frangais Italiano Dansk English Nederlands Castellano Turkce Magyar Pyccxun YKpaiHcbka Svenska Norsk Pol ski e tina Hrvatski Sloven ina Romana Sloven ina Portugu s Srpski Flow temp setpoint 30 75 C 1 DHW temperature 30 60 C 1 Product with hot water generation or connected domestic hot water cylinder Comfort mode On Off Off Fault lists are only displayed and can only be deleted if faults have occurred 38 Installation and maintenance instructions ecoTEC plus 0020209591_00 Setting level Values Default Unit Increment select explanation 7 Min Max setting Auxiliary relay 1 10 1 Circulation pump 2 2 Ex
7. ccceeceeeeeeeeeteeeeeeeees 27 Maintenance work carrying OUt eee eeeeeeeeeeeeeeeeeeeee 33 69 Maintenance work COMpleting ceeeeeeeeeeeeeeeeeeeeeneeeee 36 Mass flow Sensor replacing ceeecceeeeeeeeeeeeesteeeeeeeeenneeee 31 Minimum clearance eee ceeeeceeeeeee eee eeeeeeeeneeeeeeaeeeeeeeeeneeee 12 Multi functional module eee eee eect eeeeeeeeeneeeeeneeeeeeeees 19 oO Operating Concept nedisan eee eel aie ceeds 18 P PCB and display replacing eeeseeeeeeeeeieeererreerrrern 33 PCB or display replacing eeeeeeeeereeererreerrerrnen 33 Performing gas family check s es 20 Power SUPPI y ciei a e eee e a e 17 Pre charge pressure for the internal expansion vessel Checkih gearre aena eara Eae AAE EREA EETAS ERE SERENE 36 Preparing repair WOFK sssssssssrsssiisrrieerireiresrireriiesrnnrrrerens 29 Pr ss re Jage naa aad a adia ddaa 9 Product dimensions onient iii 11 Product draining ei a r a and 36 Product Switching Off cccceceeceeeeeeeeeeeeeseeaeeeeseeeeeeeeees 36 Pump output Setting 0 ccccceecceee eee eeceeeeeeseeaeeeeseeeeeeeeees 27 Pump remaining feed head 000 eee eeeeeeeeeeeeneeeeeeeeneeeees 27 atire LIne Ee a E AA AEE TAE is 23 R Regulations e sisi xiii iit eae ieee ad aet 6 Remaining feed head PUMP eee eeeeeeeceseeeenneeeeeeeeneeeees 27 Removing compact thermal module 34 Removing unit connection piece for the air flue pipe 1
8. BS 5440 1 It is recommended that the fanned flue gas system terminal is positioned as follows Atleast 2 m from an opening in the building directly opposite and So that the combustion products are not discharged directly across a property boundary Dimensions D E F and G These clearances may be reduced to 25 mm without affecting the performance of the boiler In order to ensure that the condensate vapour plume does not damage adjacent surfaces the terminal should be exten ded as shown Dimension H This clearance may be reduced to 25 mm without adversely affecting the performance of the boiler How ever in order to ensure that the condensate vapour plume does not damage adjacent surfaces a clearance of 300 mm is preferred For IE recommendations are given in the current issue of the IS 813 Adequately secured air flue gas pipe a The flue pipe must protrude beyond any overhang Balcony eaves K Technical data Technical data General Opening of the flue pipe below eaves and balconies and 1013 mbar based on hot water generation if applicable G20 612 VU GB 615 VU GB 618 VU GB 624 VU GB 630 VU GB 637 VU GB 126 5 5 A 156 5 5 A 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Designated country des GB Great GB Great GB Great GB Grea
9. External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Contact data Phone number 0 9 End the installation assistant Yes No Fault lists are only displayed and can only be deleted if faults have occurred B Overview of diagnostics codes Code Parameter Values or explanations Detault Ownisetting setting D 000 Heating partial load Adjustable heating partial load in kW Auto Auto Product automatically adjusts max partial load to current system demand D 001 Overrun time of internal heating 1 60 min 5 min pump for heating mode D 002 Max burner anti cycling time heating 2 60 min 20 min at 20 C flow temperature D 003 Outlet temp actual value In C Not ad justable D 004 Measured value of hot water sensor In C Not ad justable D 005 Flow temperature target value or In C max of the value set in D 071 limited by an eBUS Not ad return target value controller if connected justable D 006 Hot water temperature target value 35 65 C Not ad only products with integrated hot justable water generation 40 Installation and maintenance instructions ecoTEC plus 0020209591_00 Code Parameter Values or explanations Derault Own Sering setting D 007 Warm start temperature target value 35
10. eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active D 028 Switching of relay 2 on the VR 40 2 1 Circulation pump 2 External in 7 multi functional module 2 External pump pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active D 033 Fan speed target value In rpm Not ad justable D 034 Fan speed actual value In rpm Not ad justable D 035 Position of the diverter valve Heating mode Not ad Parallel operation mid position justable DHW mode D 036 Hot water flow volume impeller In l min Not ad sensor justable D 039 Solar feed temperature Actual value in C Not ad justable D 040 Flow temperature Actual value in C Not ad justable D 041 Return temperature Actual value in C Not ad justable D 044 Digitised ionisation value Display field 0 to 1020 Not ad gt 800 no flame justable lt 400 good flame D 046 Pump type 0 Relay with disable facility 0 Relay 1 PWM with disable facility with disable facility D 047 Outside temperature with Vaillant Actual value in C Not ad weather compensator justable D 050 Offset for minimum speed In rpm setting range 0 to 3000 Nominal value set in factory D 051 Offset for maximum speed In rpm setting range 990 to 0
11. ecoTEC plus ecoTEC plus ecoTEC plus Gas flow rate at 15 C 1 5 kg h 1 9 kg h 2 4 kg h 3 0 kg h and 1013 mbar based on hot water generation if applicable G31 Min flue gas mass rate 1 44 g s 1 44 g s 1 80 g s 2 47 g s 2 78 g s 3 05 g s G20 Min flue gas mass rate 2 40 g s 2 90 g s 4 08 g s 4 08 g s G31 Max flue gas mass rate 5 6 g s 7 0 g s 8 4 g s 11 1 g s 13 9 g s 17 4 g s Min flue gas temperature 40 C 40 C 40 C 40 C 40 C 40 C Max flue gas temperat 70 C 70 C 70 C 70 C 70 C 70 C ure Approved gas fired units C13 C33 C13 C33 C13 C33 C13 C33 C13 C33 C13 C33 C43 C53 C43 C53 C43 C53 C43 C53 C43 C53 C43 C53 30 efficiency 108 108 108 5 109 109 108 5 NOx class 5 5 5 5 5 5 SEDBUK 2005 A A A A A A SEDBUK 2009 89 3 89 3 89 3 89 3 89 3 89 3 G20 G31 Boiler dimension width 440 mm 440 mm 440 mm 440 mm 440 mm 440 mm Boiler dimension height 720 mm 720 mm 720 mm 720 mm 720 mm 720 mm Boiler dimension depth 338 mm 338 mm 338 mm 338 mm 372 mm 406 mm Mounting weight 36 kg 36 kg 36 kg 37 kg 38 kg 43 kg 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5 GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Designated country des GB Great GB Great GB Great GB Great ignation in accordance Britain IE Britain IE Britain IE Britain IE with ISO 3166 Ireland Ireland Ireland Ireland Approved unit categories Il243p Ilou
12. ALL SYSTEMS The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer s instructions What system cleaner was used What inhibitor was used Quantity Has a primary water system filter been installed CENTRAL HEATING MODE measure and record Gas rate OR Burner operating pressure if applicable OR Gas inlet pressure Central heating flow temperature Central heating return temperature COMBINATION BOILERS ONLY Is the installation in a hard water area above 200ppm If yes and if required by the manufacturer has a water scale reducer been fitted What type of scale reducer has been fitted DOMESTIC HOT WATER MODE Measure and Record Gas rate OR Burner operating pressure at maximum rate OR Gas inlet pressure at maximum rate Cold water inlet temperature Hot water has been checked at all outlets Yes Temperature Water flow rate CONDENSING BOILERS ONLY The condensate drain has been installed in accordance with the manufacturer s instructions and or BS5546 BS6798 ALL INSTALLATIONS At max rate co ppm CO CO Record the following At min rate where possible co ppm CO CO The heating and hot water system complies with the appropriate Building Regulations The boiler and associated products have been installed and commissioned in accordance with the manu
13. After switching on the product switches directly to the menu to select the language The default lan guage setting is English 6 Select the required language and confirm by pressing O lt You are automatically taken to D 093 to set the device specific number 7 Set the correct value for the relevant product type in ac 0020209591_00 ecoTEC plus Installation and maintenance instructions cordance with the table below and confirm by pressing O Product type number 612 VU GB 126 5 5 A ecoTEC 1 plus 615 VU GB 156 5 5 A ecoTEC 3 plus 618 VU GB 186 5 5 A ecoTEC 4 plus 624 VU GB 246 5 5 A ecoTEC 9 plus 630 VU GB 306 5 5 A ecoTEC 14 plus 637 VU GB 376 5 5 A ecoTEC 20 plus 825 VUW GB 256 5 5 ecoTEC 6 plus 832 VUW GB 326 5 5 ecoTEC 10 plus 835 VUW GB 356 5 5 ecoTEC 13 plus 838 VUW GB 386 5 5 ecoTEC 17 plus lt The electronics are now set to the product type and the parameters of all diagnostics codes are set to default settings lt The installation assistant starts 8 Make the system specific settings 9 7 Completing repair work 1 Establish the power supply 2 Switch the product back on if this has not yet been done gt Page 19 3 Install the front casing 4 Open all service valves and the gas isolator cock 5 Check that it works correctly and is leak tight gt Page 26 10 Inspection and maintenance
14. GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Nominal heat output 4 2 5 7 6 4 7 1 range P at 50 30 C 20 4 kw 25 7 kW 32 2 kW 30 1 kW Nominal heat output 3 8 5 2 5 8 6 4 range P at 80 60 C 19 3 kW lt 24 4 kW 30 4 kW 28 6 kW Maximum heat output for 25 4 kW 31 8 kW 35 0 kW 38 7 kW hot water generation Maximum heat input for 25 9 kW 32 4 kW 35 7 kW 39 5 kW hot water generation Maximum heat input 19 6 kw 24 7 kW 31 0 kW 28 9 kW heating side Minimum heat input 4 0 kw 5 5 kW 6 2 kW 6 8 kW Heating adjustment range 4 19 kW 5 24 kW 6 30 kW 6 29 kW 65 Technical data Power loading G31 tion water volume 618 VU GB 624 VU GB 630 VU GB 637 VU GB 825 VUW 832 VUW 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A GB 256 5 5 GB 326 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Nominal heat output 5 5 6 7 9 4 9 4 5 5 6 7 range P at 50 30 C 19 3 kW 25 7 kW 32 1 kW 39 6 kW 19 3 kW 25 7 kW Nominal heat output 5 0 6 0 8 5 8 5 5 0 6 0 range P at 80 60 C 18 5 kW lt 24 4 kW 30 4 kW 37 6 kW 19 3 kW 24 4 kW Maximum heat output for 18 5 kW 24 4 kw 30 4 kW 37 6 kW 25 4 kW 31 8 kW hot water generation Maximum heat input for 18 9 kW 24 9 kW 31 0 kw 38 4 kW 25 9 kW 32 4 kW hot
15. Remove both screws 1 on the support plate 2 Remove the support plate 2 Pull out the expansion vessel 3 towards the front Installation and maintenance instructions ecoTEC plus 0020209591_00 Insert the new expansion vessel into the product Screw the new expansion vessel to the water connec tion Use a new seal for this Attach the support plate using both screws 1 Fill and purge the product and if necessary the heating installation gt Page 22 9 6 7 Replacing the PCB or the display Note If you only replace one component when the product is switched on the new component ad opts the parameters that were previously set from the component that was not replaced Open the electronics box gt Page 17 2 Replace the PCB or display according to the assembly and installation instructions supplied E TA 3 Ifyou are replacing the PCB remove the coding resist ance 1 plug X24 from the old PCB and plug the plug onto the new PCB 4 Close the electronics box 9 6 8 Replacing the PCB and the display 1 Open the electronics box gt Page 17 2 Replace the PCB and display according to the assembly and installation instructions supplied E Te 3 Remove the coding resistance 1 plug X24 from the old PCB and plug the plug into the new PCB 4 Close the electronics box 5 Press the on off button on the product gt Page 19 lt
16. cocks that are installed upstream from the product before you carry out the gas leak tightness test gt If during gas leak tightness tests you have closed the gas isolator cock that is installed upstream of the product relieve the gas line pressure before you open this gas isolator cock Caution Risk of material damage due to corrosion If non diffusion tight plastic pipes are used in the heating installation this may cause air to enter the heating water and corrosion of the heat generation circuit and the heat generator gt If using non diffusion tight plastic pipes in the heating installation partition the system by installing an external heat ex changer between the heat generator and the heating installation Caution Risk of material damage due to heat trans fer during soldering gt Do not solder the connection pieces if the connection pieces are screwed to the service valves 13 5 1 Installation requirements 5 1 1 In the as delivered condition the product is preset for opera tion with the gas group indicated on the identification plate Information on liquid gas operation If you have a product that has been preset for operation with natural gas you must convert it to run on liquid gas You will need a conversion kit for this The conversion procedure is described in the manual supplied with the conversion kit 5 1 2 Purging the liquid gas tank If the liquid gas tank is not purged properly
17. max three times to restart the product gt If you are unable to remedy the fault and the fault recurs despite fault clearance attempts contact customer ser vice 9 3 Calling up and clearing the fault memory The last 10 fault messages are stored in the fault memory gt Navigate to the Fault list menu lt The display shows the number of faults that have occurred the fault numbers and the corresponding plain text display gt Press or to call up individual fault messages gt Press twice to delete the fault list 9 4 Resetting parameters to factory settings 1 Navigate to Menu gt Installer level gt Diagnostics menu gt D 096 Reset to factory settings and con firm by pressing 2 Set the diagnostics code to 1 and confirm by pressing 0020209591_00 ecoTEC plus Installation and maintenance instructions 9 5 Preparing the repair work Decommission the product Disconnect the product from the power mains Remove the front casing gt Page 13 Close the gas isolator cock Close the service valves in the heating flow and in the heating return Close the service valve in the cold water pipe Drain the product if you want to replace water bearing components of the product 8 Make sure that water does not drip on live components e g the electronics box 9 Use only new seals aRWNS NO 9 5 1 The original components of the product were also certified as part of the declaratio
18. product are open gt Slowly open the filling and drainage tap so that the water flows into the heating system gt Purge the lowest radiator until water flows out of the purging valve without bubbles gt Purge all other radiators until the entire heating system has been filled with water gt Close all purging valves gt Monitor the rising filling pressure in the heating installa tion gt Fill with water until the required filling pressure is reached gt Close the filling and drainage tap and the cold water valve 7 12 Purging the heating installation 1 Select the check programme P 00 lt The product does not start up the internal pump operates intermittently and purges either the heating circuit or the hot water circuit lt The display shows the filling pressure of the heating installation 2 Make sure that the filling pressure of the heating install ation does not fall below the minimum filling pressure 20 08 MPa 20 80 bar lt At the end of the filling procedure the filling pres sure of the heating installation should be at least 0 02 MPa 0 2 bar above the counter pressure of the expansion vessel Exp Pinstaliation 2 Pexp 0 02 MPa 0 2 bar 3 If there is still too much air in the heating installation at the end of the check programme P 00 repeat the check programme 7 13 Filling and purging the hot water system Applicability Product with integrated hot water generation
19. with reference to AT 20 K Approx condensate rate 1 2 l h 1 6 I h 1 9 I h 2 5 I h 3 1 I h 3 8 I h pH value 3 5 to 4 0 in 50 30 C heating mode Remaining feed head of 0 025 MPa 0 025 MPa 0 025 MPa 0 025 MPa 0 025 MPa 0 025 MPa pump at nominal circula 0 250 bar 0 250 bar 0 250 bar 0 250 bar 0 250 bar 0 250 bar 66 Installation and maintenance instructions ecoTEC plus 0020209591_00 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5 GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Maximum flow temperat 85 C 85 C 85 C 85 C ure Max flow temperature 30 80 C 30 80 C 30 80 C 30 80 C adjustment range default setting 75 C Permissible total over 0 3 MPa 0 3 MPa 0 3 MPa 0 3 MPa pressure 3 0 bar 3 0 bar 3 0 bar 3 0 bar Minimum pressure for 0 08 MPa 0 08 MPa 0 08 MPa 0 08 MPa full operation 0 80 bar 0 80 bar 0 80 bar 0 80 bar Expansion vessel capa 101 101 101 101 city Circulation water volume 830 l h 1 049 I h 1 307 I h 1 230 l h with reference to AT 20 K Approx condensate rate 2 0 I h 2 5 W h 3 1 I h 2 9 I h pH value 3 5 to 4 0 in 50 30 C heating mode Remaining feed head of 0 025 MPa 0 025 MPa 0 025 MPa 0 025 MPa pump at nominal circula 0 250 bar 0 250 bar 0 250 bar 0 250 bar tion water volume Tec
20. 1 Open the cold water stop valve on the product 2 Fill the hot water system by opening all the hot water draw off valves until water escapes 0020209591_00 ecoTEC plus Installation and maintenance instructions 7 14 Filling the condensate trap 1 Remove the lower section from the condensate trap 1 2 Fill the lower section with water up to 10 mm below the upper edge 3 Attach the lower section to the condensate trap 7 15 7 15 1 Checking the factory set gas ratio setting Gas ratio setting Caution Risk of material damage caused by mak ing unauthorised settings gt Never modify the factory setting of the gas pressure regulator of the gas valve gt Before you start up the product compare the gas group information on the identification plate with the gas group available at the installation site Conditions The product design is not compatible with the local gas group Only Vaillant Service Solutions may perform a gas conver sion If a gas conversion to liquid gas has been carried out the smallest possible partial load is higher than is shown on the display The correct values can be found in the Technical data in the appendix gt Call Vaillant Service Solutions 0330 1003 143 gt Do not start up the product Conditions The product design is compatible with the local gas group gt Proceed as described below 23 7 15 2 Checking the leak tightness of the flue gas system and for
21. 10 mm be low the upper edge 4 Attach the lower section to the condensate trap 10 7 Cleaning the filter in the cold water inlet Applicability Product with integrated hot water generation 1 2 Close the cold water stop valve Drain the product on the hot water side 35 3 A UA 9 10 11 12 10 8 Unscrew the cap nut 2 and the lock nut 1 from the 9 Secure the air intake pipe with the retaining screw product s casing 10 Check the gas flow pressure U 10 9 Draining the product S ISN 1 Close the service valves of the product 2 Start the check programme P 06 diverter valve mid A position 3 Open the drain valves Po 4 Make sure that the cap of the automatic air vent on the internal pump is open so that the product can be VIP drained fully 2 1 40 10 Checking the pre charge pressure for the Tilt the electronics box forward internal expansion vessel Remove the clamp 2 1 Close the service valves and drain the product Remove the pipe 1 from the product 2 Measure the pre charge pressure of the expansion ves Rinse the filter under a jet of water holding it against sel at the vessel valve the direction of flow If the filter is damaged or it can no longer be cleaned sufficiently you must replace the filter Conditions Pre charge pressure lt 0 075 MPa 0 75 bar gt Ideally you should top up the expansion vessel with Refit the pipe nitrogen
22. 1JT Telephone 03 30 100 34 61 Telephone renewables 02 07 022 09 28 Vaillant Service Solutions 03 30 100 31 43 Spares Technical Enquiries 177 359 66 15 info vaillant co uk technicalspares groupservice co uk www vaillant co uk These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent
23. 65 C Not ad only products with integrated hot justable water generation Frost protection is at 15 C then 40 to 70 C max Cylinder temperature target value temperature can be adjusted under D 020 only products with heating mode only D 008 Room thermostat at terminal RT Room thermostat open no heat requirement Not ad Room thermostat closed heat requirement justable D 009 Target value from external eBUS In C Not ad controller justable D 010 Status of internal heating pump On Off Not ad justable D 011 Status of external heating pump On Off Not ad justable D 012 Status of cylinder charge pump On Off Not ad justable D 013 Status of hot water circulation pump On Off Not ad justable D 014 Target pump speed high efficiency Target value of internal high efficiency pump in Pos 0 Auto pump sible settings 0 Auto 1 53 2 60 3 70 4 85 5 100 D 015 Actual pump speed high efficiency Actual value for internal high efficiency pump in Not ad pump justable D 016 24 V DC room thermostat Heating mode off on Not ad open closed justable D 017 Heating flow return flow temperature Control type 0 Flow control changeover 0 Flow 1 Return Return Automatic detection function for heating output inactive Max possible heating partial load when D 000 is on Auto D 018 Pump operating mode setting 1 Comfort continuously operating pump 3 Eco Internal pump is switched on when the heating flow
24. Bulletin TB008 The flue gas analyser should be of the correct type as specified by BS 7967 Prior to its use the flue gas analyser should have been maintained and calibrated as specified by the manufacturer The installer must have the relevant competence for use of the analyser Check and zero the analyser IN FRESH AIR as per analyser manufacturer s instructions NOTE THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER If any such adjustment is recommended and further checking of the boiler is required the installer service engineer must be competent to carry out this work and to use the flue gas analyser accordingly If the boiler requires conversion to operate with a different gas family e g conversion from natural gas to LPG separate guidance will be provided by the boiler manufacturer SET BOILER TO MAXIMUM RATE In accordance with boiler instructions set boiler to operate at max rate full load condition Allow sufficient time for combustion to stabilise NOTE Do not insert analyser probe during this period to avoid possible flooding of sensor CARRY OUT FLUE INTEGRITY CHECK USING ANALYSER Insert analyser probe into air inlet test point and allow readings to stabilise NOTE where no air inlet test point is provided then a flue integrity check with the analyser is not possible The installer should verify that f
25. Code Parameter Values or explanations perault Own seting setting D 088 Start delay for hot water draw off 0 1 5 I min and no delay 1 5 l min and detection via impeller only products 1 3 7 I min and 2 sec delay no delay with integrated hot water generation D 090 Status of digital controller Recognised not recognised Not ad justable D 091 Status of DCF with external temper No reception Not ad ature sensor connected Reception justable Synchronised Valid D 092 actoSTOR module recognition 0 Not connected Not ad 1 Connection error No communication via PeBus justable actoSTOR module detected previously 2 Connection active D 093 Setting the Device Specific Number Setting range 0 to 99 DSN D 094 Delete fault history Delete fault list 0 No 1 Yes D 095 Software version of PeBUS compon PCB BMU Not ad ents Display Al justable actoSTOR APC HBI VR34 D 096 Default setting Reset all adjustable parameters to factory setting 0 No 1 Yes D 098 Value of coding resistances for gas Display xx yy Not ad group and output range xx Coding resistance 1 in cable harness for output justable range 8 612 VU GB 126 5 5 A 615 VU GB 156 5 5 A 618 VU GB 186 5 5 A 825 VUW GB 256 5 5 9 624 VU GB 246 5 5 A 832 VUW GB 326 5 5 10 630 VU GB 306 5 5 A 835 VUW GB 356 5 5 11 637 VU GB 376 5 5 A 838 VUW GB 386 5 5 yy Coding resistance 2 on PCB for gas group 02 P gas 03 H gas C Stat
26. Otherwise top it up with air Ensure that the Reinsert the clamp drain valve is open when topping up Always use new seals and retighten the cap nuts and 3 If water escapes from the valve of the expansion the lock nut vessel you must replace the expansion vessel Open the cold water stop valve gt Page 32 4 Fill the heating installation Page 22 Installing the compact thermal module 5 Purge the heating installation Page 23 10 11 Completing inspection and maintenance work Once you have completed all maintenance work gt Check the gas flow pressure gt Page 24 gt Check the COz content and if necessary adjust it air index setting gt Page 25 gt If required reset the maintenance interval gt Page 27 11 Decommissioning 11 1 Temporarily decommissioning the product gt Press the on off button lt The display goes out gt Close the gas isolator cock 36 gt For products with hot water generation and products with Connect the compact thermal module 2 to the heat a connected domestic hot water cylinder you must also exchanger 1 close the cold water stop valve Tighten the four new nuts 8 across the diagonal until the burner flange fits closely and uniformly onto the mating surfaces Tightening torque 6 Nm Reconnect the plugs 3 to 7 Connect the gas line using a new seal In the process secure the gas pipe against twisting Open the gas isola
27. accordingly each time X maintenance work is carried out 11 Clean the heat exchanger X 12 Check the burner for damage and replace it if necessary X 13 Check the condensate trap in the product clean and fill this if required x x 14 Install the compact thermal module Caution Replace the seals X 15 Products with integrated hot water generation only If the volume of water is insufficient or the x outlet temperature is not reached replace the secondary heat exchanger if necessary Products with integrated hot water generation only Clean the filter in the cold water inlet Re 16 place the filter if impurities can no longer be removed or if the filter is damaged In this case also x check the impeller sensor for dirt and damage clean the sensor do not use compressed air for this and replace the sensor if it is damaged 17 Open the gas isolator cock reconnect the product to the power mains and switch the product on x X 48 Open the service valves fill up the product heating installation to 0 1 0 2 MPa 1 0 2 0 bar de x pending on the static height of the heating installation and start the purging programme P 00 19 Perform a test operation of the product and heating installation including hot water generation x x and purge the system once more if necessary 56 Installation and maintenance instructions ecoTEC plus 0020209591_00 Mainten Inspection foee No Work pect At least annua
28. and 4 until the display shows the language setting option gt Select the required language gt Press L twice to confirm this change 7 3 2 Filling mode Filling mode check programme P 06 is activated automatic ally in the installation assistant for as long as the filling mode appears on the display 7 3 3 Purging 1 Unlike in the Check programs menu to purge the sys tem start up the check programme P 00 by pressing or C4 2 If you need to change the circuit that is being purged press L3 7 3 4 Target feed temperature hot water temperature Comfort mode 1 To set the target flow temperature hot water temperat ure and Comfort mode use and 2 Press to confirm this setting 7 3 5 Heating partial load The heating partial load of the product is set to Auto at the factory The product independently determines the optimum heating output depending on the current heat demand of the system You can retroactively change the setting in the Diagnostics menu under D 000 7 3 6 Auxiliary relay and multi functional module 1 If you have connected additional components to the product assign these components to the individual re lays 2 In each case confirm by pressing D Note This setting can be retroactively changed in the Diagnostics menu using D 026 D 027 and D 028 19 7 3 7 Contact data gt If required store your telephone number in the Appli ance config max 16 digits no blank
29. blocked D Overview of fault codes Code Meaning Cause F 00 Flow temperature sensor interruption NTC plug not plugged in or has come loose multiple plug on the PCB not plugged in correctly interruption in cable harness NTC defective F 01 Return temperature sensor interruption NTC plug not plugged in or has come loose multiple plug on the PCB not plugged in correctly interruption in cable harness NTC defective F 02 Interruption cylinder charging sensor NTC defective NTC cable defective defective plug connection on NTC actoSTOR NTC only in combination with defective plug connection on actoSTOR electronics F 91 F 03 Interruption cylinder sensor actoSTOR NTC defective NTC cable defective defective plug connection on NTC NTC only in combination with F 91 defective plug connection on actoSTOR electronics F 10 Flow NTC short circuit NTC defective short circuit in cable harness cable casing F 11 Return NTC short circuit NTC defective short circuit in cable harness cable casing F 12 Short circuit at cylinder charging sensor NTC defective short circuit in cable harness cable casing NTC only in combination with F 91 F 13 Product with integrated hot water NTC defective short circuit in cable harness cable casing generation Short circuit warm start sensor cylinder sensor Product with integrated hot water genera tion and actoSTOR Short circuit cylinder sens
30. flue gas recirculation 1 Check the integrity of the flue gas system 2 Ifthe flue gas system is longer than 2 m we urgently recommend that you test the system for flue gas recir culation as described below 3 Use the air analysis point to check for flue gas recircula tion 4 Use the flue gas measuring instrument 5 If you discover CO or CO2 in the fresh air search for a leak in the flue gas system or for the flue gas recircula tion 6 Eliminate the damage 7 Repeat the above mentioned test to determine if the fresh air contains CO or CO2 8 If you cannot eliminate the damage you must not start up the boiler 7 15 3 Checking the gas flow rate The boiler is fitted with a multifunctional automatic gas valve which ensures that the precise air gas ratio is provided un der all operating conditions The gas flow rate has been set during production and does not require adjustment With the front casing fitted check the gas flow rate of the boiler as fol lows gt Start up the product with the check programme P 01 gt In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo stat gt Wait at least 5 minutes until the boiler has reached its operating temperature gt Ensure that all other gas appliances in the property are turned off gt Measure the gas flow rate at the gas meter gt Compare the measured values with the corresponding values in the table
31. gas fired units PMS Permissible total overpressure in heating mode PMW Permissible total overpressure during hot water generation Wiese Max flow temperature ED 92 42 Current efficiency directive fulfilled with 4 rating Mains voltage and mains frequency Max electrical power consumption Level of protection Heating mode Hot water generation Nominal heat output range Heat input range Nominal hot water draw off rate Proper disposal of the product XXXXXXYYYYYYYYYYZZZZZZZ7777Z Bar code with serial number 7th to 16th digit product article number 3 5 Energy Saving Trust Endorsed Products Only the most energy efficient products can carry the Energy Saving Trust Endorsed Product brandmark making it easy for consumers to choose products that have met strict energy performance criteria Available for Boilers Heating controls and chemical inhib itors the Energy Saving Trust endorsed product brandmark gives consumers confidence that a product will cost less to run help lower energy bills and reduce carbon emissions About the Energy Saving Trust Energy Saving Trust is an independent and impartial organ isation that provides trusted energy saving advice to em power millions of people to lead affordable low energy life styles For more information visit energysavingtrust org uk 4 Installation 4 1 1 Remove the product from its box 2 Remove the
32. gt Press the on off button on the product lt The basic display appears on the display 7 3 The installation assistant is displayed whenever the product is switched on until it has been successfully completed It provides direct access to the most important check programmes and configuration settings for starting up the product Running the installation assistants To recheck and reset the most important system parameters call up the Appliance config Menu gt Installer level Appliance config The settings options for more complex systems can be found in the Diagnostics menu Menu gt Installer level Diagnostics menu gt Press to confirm installation assistant start up lt All heating and hot water requests are blocked whilst the installation assistant is active 0020209591_00 ecoTEC plus Installation and maintenance instructions Note If you do not confirm the launch of the install ation assistant within 10 seconds of switching the system on the basic display reappears gt To access the next point confirm by pressing L in each case 7 3 1 gt Set the required language gt To confirm the set language and to avoid unintentionally changing it press C3 to confirm this twice Language If you have unintentionally set a language that you do not understand proceed as follows to change it gt Press and hold C3 and 4 at the same time gt Also briefly press G gt Press and hold C3
33. pump on pump and off T 08 Checking the Product starts up and burner switches to minimum load The flow temperature is shown in the display 10 2 Electronics self test oe Menu gt Installer level gt Test programs gt Electronics 5 Unscrew the retaining screw 2 and remove the air self test intake pipe 1 from the intake stub You can use the electronics self test to check the PCB 6 Unscrew either the cap nut on the gas valve 3 or the 10 3 Removing the compact thermal module Note The compact thermal module consists of five main components Speed regulated fan Gas valve including support plate Venturi including mass flow sensor and gas connection pipe Burner flange Premix burner 34 cap nut 4 between the corrugated gas pipe and the fixed gas pipe Installation and maintenance instructions ecoTEC plus 0020209591_00 7 Remove the plugs of the ignition line 7 and of the ground connection 6 from the ignition electrode 8 Remove the plug 4 from the fan motor by pushing in the latching lug 9 Remove the three plugs from the gas valve 5 10 Remove the plug from the Venturi 3 by pushing in the latching lug 11 Release the cable harness from the clip on the gas valve retainer 12 Unscrew the four nuts 8 13 Remove the entire compact thermal module 2 from the heat exchanger 1 14 Check the burner and the heat exchanger for d
34. to 5 100 using diagnostics code D 014 gt Remove the front casing gt Page 13 28 gt Regulate the pressure using the adjusting screw 1 Pres Position of the sure Notaclacplication adjusting screw in MPa PP mbar If the radiators do not heat Right hand stop 0 035 up sufficiently at the default turned all the 350 setting In this case you way down must set the pump to the maximum speed Mid position 0 025 5 turns to the Default setting 250 left 5 further turns to If noises are produced in 0 017 the left from the the radiators or radiator aa 170 mid position valves gt Install the front casing 8 5 Handing the product over to the operator gt When you have finished the installation affix the en closed sticker which requests that the user reads the instructions to the front of the product in the operator s language gt Explain to the operator how the safety devices work and where they are located gt Inform the operator how to handle the product gt In particular draw attention to the safety information which the operator must follow gt Inform the operator of the necessity to have the product maintained according to the specified intervals gt Pass all of the instructions and documentation for the product to the operator for safe keeping gt Inform the operator about measures taken to ensure the supply of combustion air and flue
35. water generation Maximum heat input 18 6 kW 24 7 kW 30 9 kW 38 1 kW 19 6 kw 24 7 kW heating side Minimum heat input 5 3 kW 6 4 kW 9 0 kW 9 0 kW 5 3 kW 6 4 kW 835 VUW 838 VUW GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus Nominal heat output 9 4 9 4 range P at 50 30 C 32 1 kW 30 1 kW Nominal heat output 8 5 8 5 range P at 80 60 C 30 4 kW 28 6 kW Maximum heat output for 35 0 kW 38 7 kW hot water generation Maximum heat input for 35 7 kW 39 5 kW hot water generation Maximum heat input 30 9 kW 28 9 kW heating side Minimum heat input 9 0 kw 9 0 kw Technical data Heating 612 VU GB 615 VU GB 618 VU GB 624 VU GB 630 VU GB 637 VU GB 126 5 5 A 156 5 5 A 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Maximum flow temperat 85 C 85 C 85 C 85 C 85 C 85 C ure Max flow temperature 30 80 C 30 80 C 30 80 C 30 80 C 30 80 C 30 80 C adjustment range default setting 75 C Permissible total over 0 3 MPa 0 3 MPa 0 3 MPa 0 3 MPa 0 3 MPa 0 3 MPa pressure 3 0 bar 3 0 bar 3 0 bar 3 0 bar 3 0 bar 3 0 bar Minimum pressure for 0 08 MPa 0 08 MPa 0 08 MPa 0 08 MPa 0 08 MPa 0 08 MPa full operation 0 80 bar 0 80 bar 0 80 bar 0 80 bar 0 80 bar 0 80 bar Expansion vessel capa 101 101 101 101 101 101 city Circulation water volume 525 l h 662 I h 796 l h 1 049 I h 1 307 l h 1 617 W h
36. 15 0 18 5 22 0 40 2 0 3 5 65 10 0 13 0 16 5 19 5 45 2 0 3 0 60 85 11 5 14 0 17 0 50 2 0 3 0 50 7 5 9 5 12 0 14 0 55 20 25 45 6 0 8 0 10 0 11 5 60 2 0 2 0 35 50 60 7 5 9 0 65 20 15 25 35 45 55 65 70 2 0 15 20 25 25 30 3 5 75 2 0 1 0 1 0 1 0 1 0 1 0 1 0 Trion Set maximum burner anti cycling time target min C 35 40 45 50 55 60 35 25 5 29 5 33 0 36 5 40 5 44 0 40 22 5 26 0 29 0 32 0 35 5 38 5 45 19 5 22 5 25 0 27 5 30 5 33 0 50 16 5 18 5 21 0 23 5 25 5 28 0 55 13 5 15 0 17 0 19 0 20 5 22 5 60 10 5 11 5 13 0 145 15 5 17 0 65 7 0 8 0 9 0 10 0 11 0 11 5 70 4 0 4 5 5 0 5 5 6 0 6 5 75 1 0 1 0 1 0 1 0 1 0 1 0 8 1 2 Resetting the remaining burner anti cycling 8 2 0020209591_00 ecoTEC plus Installation and maintenance instructions time Alternatives 1 2 gt Navigate to Menu Reset anti cycl time lt The current burner anti cycling time appears in the display gt Press to reset the burner anti cycling time Alternatives 2 2 gt Press 0 Setting the maintenance interval Navigate to Menu gt Installer level gt Diagnostics menu gt D 084 Maintenance in and confirm by press ing B Set the maintenance interval operating hours until the next maintenance work is due and confirm by pressing O Guideline value for burner operating hours un
37. 3p Ilou3p Iou3p Gas connection boiler 15mm 15 mm 15 mm 15 mm side Flow return heating con 22 mm 22 mm 22 mm 22 mm nections boiler side Hot and cold water con G 3 4 G 3 4 G 3 4 G 3 4 nection boiler side Expansion relief valve 15 mm 15 mm 15 mm 15 mm connector min Air flue gas connection 60 100 mm 60 100 mm 60 100 mm 60 100 mm Condensate drain pipe 19 mm 19 mm 19 mm 19 mm work min G20 natural gas flow 2 0 kPa 2 0 kPa 2 0 kPa 2 0 kPa pressure 20 0 mbar 20 0 mbar 20 0 mbar 20 0 mbar G31 propane gas flow 3 7 kPa 3 7 kPa 3 7 kPa 3 7 kPa pressure 37 0 mbar 37 0 mbar 37 0 mbar 37 0 mbar Gas flow rate at 15 C 2 7 m h 3 4 m h 3 8 m3 h 4 2 m h and 1013 mbar based on hot water generation if applicable G20 Gas flow rate at 15 C 2 0 kg h 2 5 kg h 2 8 kg h 3 1 kg h and 1013 mbar based on hot water generation if applicable G31 Min flue gas mass rate 1 80 g s 2 47 gls 2 78 g s 3 05 g s 0020209591_00 ecoTEC plus Installation and maintenance instructions 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5 GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Min flue gas mass rate 2 40 g s 2 90 g s 4 08 g s 4 08 g s G31 Max flue gas mass rate 8 4 g s 11 1 g s 16 2 g s 17 9 g s Min flue gas temperature 40 C 40 C 40 C 40 C Max flue gas te
38. 6 Repair work completing 0 0 0 eeeeeeeceeeeeeeeeeeeeeneeeeeeeeeeeeees 33 Repair work Preparing c cececeeseeeeeeeeeeeeeeesaeeeeeeeeneeee 29 Replacing the DUPED o oo ee eee eeeeeeeeeeenneeeenaeeeeeeeeeneeens 29 Replacing fan cc 0i sete int Ma ai ee ia 30 Replacing gas valve ooo eeeeeeeeeeeeneeeeeeeetneeeenaeeeeeeeeeneeee 30 Replacing heat Exchangel eeecceeeeeseeeeesneeeeeeeeneeeee 32 Replacing internal expansion vessel 32 Replacing Mass flow SENSOM eee eeeeeeeeeeeeneeeeeeeeenteeees 31 Replacing PCB and display eeeceeseeeeeeeeeneeeeeneeeneeeees 33 Replacing PCB or display 33 Replacing unit connection piece for the air flue pipe 16 Replacing Venturtis areitan eaa aa a aiias 31 Resetting burner anti cycling time 2 a 27 S Safety AOVICE 20s prirni a ENS 5 Schematic Arawing cect ssces cceeceiee esas eeeedeeeeecceesesteeeedaeees 5 Scope Of delivery eee eeeeccccceeeeececeeeeeaeeeeesanaeeeeseneeeeeseneeees 10 SOMASSE arpin aiat aari e aaner Oideetinel deena 34 Serial MUMBE sha e e a aae a n a e aa a a 10 Service Message w in dee Men ene 29 Setting burner anti cycling time eee eee eeeeeeeeeeeeneees 26 Setting bypass valve oe eee eeneeeceeeeseeeeeeneeeenaeeeneees 28 Setting CO2 Content ccccecceeceeeceeeeeeseaeeeeeeneeeeeeeeneeeees 25 Setting maintenance interval ccccecesceeeeeeeeeeeeeseeees 27 Setting pump output eee eee ceetee c
39. ER SYSTEMS For more information visit www centralheating co uk 2 5 Local regulations 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 manufacturer s instructions by a competent person approved at the time by the Health and Safety Executive and that it meets the requirements of the appropriate Building Regu lations The Benchmark Checklist can be used to demon strate compliance with Building Regulations and should be provided to the customer for future reference Installers are required to carry out installation commission ing 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 Installation and maintenance instructions ecoTEC plus 0020209591_00 3 3 1 3 1 1 Product description Product design Functional elements product for heating mode only 3 1 2 Functional elements product with hot water generation RZ PW Le A 0020209591_00 ecoTEC plus Installation and maintenance instructions Gas valve Water pressure sensor Venturi with mass flow sensor Heat exchanger Connection for the flue pipe Flue gas measuring stub pipe Expansion vess
40. Mass flow sensor Venturi defective F 53 Combustion regulation fault The combustion regulation has detected a fault Gas flow pressure too low Liquid gas coding resistance used when operating with natural gas Ifthe fault occurs again after being cleared Gas valve defective Mass flow sensor Venturi defective wet or blocked if the fault occurs again after being cleared Do not wet the sensor do not use any lubricants on the O ring on the Venturi F 54 Fault in the gas supply in combination with F 28 F 29 There is insufficient gas supply to operate the unit Gas isolator cock s closed Gas flow pressure is too low Gas valve defective F 56 Combustion component fault A component in the combustion regulation is defective Contact fault at the gas valve plug not plugged in correctly or not plugged in plug defective slot is defective loose connection Natural gas coding resistance used when operating with liquid gas Ifthe fault occurs again after being cleared The gas valve is defect ive F 57 End comfort protection mode Active comfort protection mode has detected a regulation fault Ignition electrode highly corroded F 61 Gas valve actuation fault The gas valve cannot be actuated Cable harness supply line to the gas valve is defective short to earth short circuit Gas valve defective PCB defective F 62 Gas valve switch off delay De
41. Nominal value set in factory 42 Installation and maintenance instructions ecoTEC plus 0020209591_00 Code Parameter Values or explanations Dal Own Setting setting D 058 Activating solar post heating only 0 Solar post heating deactivated 0 Solar products with integrated hot water 3 DHW activation target value minimum 60 C thermo post heating generation static mixer valve required between product and draw off deactivated point D 060 Number of temperature limiter shut Number of shutdowns Not ad downs justable D 061 Number of ignition device cutoffs Number of unsuccessful ignitions in the last attempt Not ad justable D 064 Average ignition time In seconds Not ad justable D 065 Maximum ignition time In seconds Not ad justable D 067 Remaining burner anti cycling time In minutes Not ad justable D 068 Unsuccessful ignitions at 1st attempt Number of unsuccessful ignitions Not ad justable D 069 Unsuccessful ignitions at 2nd at Number of unsuccessful ignitions Not ad tempt justable D 070 Set diverter valve position 0 Normal operating mode 0 Normal 1 Parallel operation mid position operating 2 Permanent heating mode position mode D 071 Target value maximum heating flow 40 80 C 75 C temperature D 072 Internal pump overrun after cylinder Adjustable from 0 10 minutes in increments of 1 minute 2 mins charg
42. Operator control panel PCB 5 Outside temperature sensor flow temperature Gas valve sensor optional external DCF receiver 0020209591_00 ecoTEC plus Installation and maintenance instructions 51 N OD 11 12 13 14 52 Circulation pump remote control Power coding resistor Return temperature sensor Flow temperature sensor Fan Contact thermostat burner off 24 V DC room thermostat Bus connection digital room thermostat controller Diverter valve 15 16 17 18 19 20 21 Installation and maintenance instructions ecoTEC plus 0020209591_00 Water pressure sensor Cylinder temperature sensor Cylinder contact C1 C2 Gas group coding resistor Auxiliary relay select via D 026 Internal pump Ignition electrode Depending on product type E 3 Connection diagram product with integrated hot water generation 12 35 kW H X25 DAON X41 X20 X100 X40 X51 X35 X20 X2 gt x lt N N X X25 x24 28l ale ee 2 X24 x2 H xoo o x6 g amp x16 N
43. W GB 256 5 5 ecoTEC plus 338 mm 832 VUW GB 326 5 5 ecoTEC plus 338 mm 835 VUW GB 356 5 5 ecoTEC plus 372 mm 838 VUW GB 386 5 5 ecoTEC plus 406 mm 4 5 Minimum clearances N a P y Minimum clearance A 165 mm Air flue pipe 60 100 mm diameter 275 mm Air flue pipe 80 125 mm diameter B 180 mm optimum approx 250 mm 5 mm optimum approx 50 mm D 500 mm in front of the heat generator to enable easy access for maintenance work may be provided by an opening door 12 4 6 Clearance from combustible components It is not necessary to maintain a clearance between the product and components made of combustible materials 4 7 Using the installation template gt Use the installation template to ascertain the locations at which you need to drill holes and make breakthroughs 4 8 Wall mounting the product 1 Check whether the wall has sufficient load bearing ca pacity to bear the operational weight of the product 2 Check if the supplied fixing material may be used for the wall Conditions The load bearing capacity of the wall is sufficient The fixing material may be used for the wall gt Wall mount the product as described gt Install the product bracket 1 on the wall gt Hang the product on the product bracket from above using the suspension bracket Conditions The fixing material may not be used for the wall gt Wall moun
44. You can actuate an additional component with the aid of the auxiliary relay that is installed and you can actuate two other components with the multi functional module 5 9 6 1 Using the auxiliary relay 1 Connect an additional component directly to the integ rated auxiliary relay using the grey plug on the PCB 2 Carry out the wiring 3 To start up the connected component select the com ponent in diagnostics code D 026 gt Page 26 5 9 6 2 Using the VR 40 2 in 7 multi functional module 1 Install the components in accordance with the respect ive instructions Conditions Components connected to relay 1 gt Activate D 027 gt Page 26 Conditions Components connected to relay 2 gt Activate D 028 gt Page 26 5 9 7 Actuating the circulation pump according to requirements 1 Carry out the wiring 2 Connect the supply line for the external button using terminals 1 0 and 6 functional drawing on the X41 edge connector which is supplied with the controller 3 Plug the edge connector into the PCB slot X41 6 Operation 6 1 The operating concept and the read off and setting facilities of the operator level are described in the operating instruc tions Operating concept An overview of the reading and setting options for the in staller level is included in the table in the appendix Installer level Overview gt Page 38 6 2 Calling up the installer level 1 Only call up the inst
45. ability of the instructions These instructions apply only to Product article number Article num Gas Council ber Number 612 VU GB 126 5 5 A 0010018531 41 044 78 ecoTEC plus 615 VU GB 156 5 5 A 0010018532 41 044 79 ecoTEC plus 618 VU GB 186 5 5 A 0010018533 41 044 80 ecoTEC plus 618 VU GB 186 5 5 A 0010018534 41 044 81 LPG ecoTEC plus 624 VU GB 246 5 5 A 0010018535 41 044 82 ecoTEC plus 630 VU GB 306 5 5 A 0010018536 41 044 83 ecoTEC plus 630 VU GB 306 5 5 A 0010018537 41 044 84 LPG ecoTEC plus 637 VU GB 376 5 5 A 0010018538 41 044 85 ecoTEC plus 825 VUW GB 256 5 5 0010018353 47 044 57 ecoTEC plus 832 VUW GB 326 5 5 0010018354 47 044 58 ecoTEC plus 832 VUW GB 326 5 5 0010018355 47 044 59 LPG ecoTEC plus 835 VUW GB 356 5 5 0010016540 47 044 53 ecoTEC plus 838 VUW GB 386 5 5 0010018356 47 044 60 ecoTEC plus 2 4 Benchmark Vaillant is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and com missioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety ef ficiency and performance Benchmark is managed and promoted by the Heating and Hotwater Industry Council DCNCHINIG COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WAT
46. afe register No At max rate Record At min rate Where Possible At max rate Record At min rate Where Possible Comments Comments Signature SERVICE 03 Signature SERVICE 04 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate Record At min rate Where Possible At max rate Record At min rate Where Possible Comments Comments Signature SERVICE 05 Signature SERVICE 06 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate Record z At min rate Where Possible At max rate Record At min rate Where Possible Comments Signature SERVICE 07 Signature SERVICE 08 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate Record At min rate Where Possible At max rate Record At min rate Where Possible Comments Commen Signature SERVICE 09 Signature SERVICE 10 Engineer name Engin
47. al gas gas COz after 5 minutes in full load mode with Vol 9 2 1 0 10 4 0 5 front casing closed COz after 5 minutes in full load mode with Vol 9 0 1 0 10 2 0 5 front casing removed Set for Wobbe index We kWh m 14 09 21 34 Oz after 5 minutes in full load mode with Vol 4 5 1 8 5 1 0 8 front casing closed CO value with full load ppm lt 250 lt 250 CO COz lt 0 0031 lt 0 0026 Conditions The CO2 content must be adjusted v Pierce the covering cap 1 at the mark using a small flat blade screwdriver and unscrew it After performing the adjustments tilt the air intake pipe back up Check the COz content again If necessary repeat the setting process Set the COz content value with front casing removed by turning the screw 2 Higher CO content Turn anti clockwise Lower COz content Turn clockwise For natural gas only Only perform the adjustment in in crements of 1 turn and wait approx 1 minute after each adjustment until the value stabilises For liquid gas only Only perform the adjustment in small increments approx 1 2 turn and wait approx 1 minute after each adjustment until the value stabilises Check the CO content again If necessary repeat the setting process Press Cancel once the adjustments have been made gt If an adjustment is not possible in the specified adjust ment range you must not star
48. aller level if you are a competent person 2 Navigate to Menu gt Installer level and confirm by pressing L 3 Set the value 17 code and confirm by pressing L3 Installation and maintenance instructions ecoTEC plus 0020209591_00 6 3 Menu gt Live Monitor Live Monitor status codes Status codes in the display provide information on the pro duct s current operating status Status codes Overview gt Page 44 6 4 Setting the hot water temperature Applicability Product with integrated hot water generation Conditions Water hardness gt 3 57 mol m Danger A Risk of death from Legionella Legionella multiply at temperatures below 60 C gt Ensure that the operator is familiar with all of the Anti legionella measures in or der to comply with the applicable regula tions regarding legionella prevention gt Set the hot water temperature to a maximum of 50 C 7 Start up 7 1 Carrying out the initial start up Initial start up must be carried out by a customer service technician or an authorised competent person using the commissioning checklist The commissioning checklist in the appendix gt Page 58 of the installation instructions must be filled in and stored carefully along with the unit s documenta tion gt Carry out the start up procedure using the commissioning checklist in the appendix gt Fill in and sign the commissioning checklist 7 2 Switching the product on and off
49. amage and dirt 15 If necessary clean or replace the components accord ing to the following sections 16 Fit anew burner flange seal 17 Check the insulating mat on the burner flange and on the back wall of the heat exchanger If you notice any signs of damage replace the relevant insulating mat 10 4 Cleaning the heat exchanger 1 Protect the folded down electronics box against sprayed water 1 2 Never undo the four nuts on the stud bolt 1 or tighten them 3 Clean the heating coil 3 of the heat exchanger 4 us 0020209591_00 ecoTEC plus Installation and maintenance instructions ing water or if required vinegar to a maximum of 5 acid Allow the vinegar to act on the heat exchanger for 20 minutes 10 5 Rinse away any loose dirt with a sharp jet of water or use a plastic brush Do not point the water jet directly at the insulating mat 2 on the back of the heat ex changer lt The water flows out of the heat exchanger through the condensate trap Checking the burner Check the surface of the burner 1 for damage If you see any damage replace the burner 2 Fita new burner flange seal 3 3 Check the insulating mat 2 on the burner flange If you notice any signs of damage replace the insulating mat 10 6 Cleaning the condensate trap 1 Remove the lower section of the condensate trap 1 2 Flush out the lower section with water 3 Fill the lower section with water up to about
50. ate dis charge pipe to minimise any risk of freezing and beware when crossing cavities that the fall is maintained and the pipe sleeved gt Ensure that the condensate drain pipework terminates in a suitable location Further information can be obtained from BS 6798 Specification for installation of gas fired boilers of rated input not exceeding 70 kW net gt Leave an installation space of at least 180 mm beneath the condensate trap 15 5 7 Installing the discharge pipe on the expansion relief valve 1 Install the discharge pipe for the expansion relief valve so that it does not interfere with the removal and fitting of the lower section of the condensate trap 2 Install the discharge pipe as shown do not shorten 3 Make sure that the end of the pipe is visible 4 Ensure that discharged water or steam cannot cause injury to persons or damage to electronic components 5 Ensure the discharge pipe work is installed routed and terminated correctly to minimise the risk of freezing up 5 8 Flue gas installation 5 8 1 1 You can find out which flue pipes may be used by con sulting the enclosed flue pipe installation manual 2 Observe the information on positioning the opening for the flue pipe This information can be found in the appendix Installing and connecting the flue pipe Conditions Installation in damp rooms gt You must connect the product to a room sealed air flue gas installation Th
51. ate trap is always full 1 3 13 Risk of material damage caused by using an unsuitable tool gt Use the correct tool to tighten or loosen screw connections 1 3 14 Risk of material damage caused by frost gt Do not install the product in rooms prone to frost 1 3 15 Risk of corrosion damage due to unsuitable combustion and room air Sprays solvents chlorinated cleaning agents paint adhesives ammonia com pounds dust or similar substances may lead to corrosion on the product and in the air flue pipe gt Ensure that the supply of combustion air is always free of fluorine chlorine sulphur dust etc gt Ensure that no chemical substances are stored at the installation site gt Ensure that the combustion air is not routed through an old floor standing oil fired boiler chimney gt If you are installing the product in hairdressing salons painter s or joiner s workshops cleaning businesses or similar locations choose a separate installation room in which a combustion air supply is ensured that is technically free of chemical substances 1 3 16 Risk of material damage caused by leak detection sprays and liquids Leak detection sprays and liquids block the filter of the mass flow sensor on the Venturi and thus destroy the mass flow sensor gt During repair work do not apply any leak detection sprays or liquids to the covering cap on the filter of the Venturi 1 3 17 Risk of damage to th
52. cause otherwise the internal condensate trap may be drained fully and flue gas may escape gt Do not connect the condensate drain pipework tightly to the waste water pip ing 0020209591_00 ecoTEC plus Installation and maintenance instructions A Soakaway o w Internal stackpipe Internal discharge system Gulley The product is equipped with a condensate trap 2 The filling height is 145 mm The condensate trap collects the condensate that has formed in a vessel with a capacity of approximately 200 ml and intermittently releases the con tents into the discharge pipe This minimises the risk of the discharge pipe freezing gt Connect the condensate discharge 1 to condensate drain pipework 3 which has a minimum internal dia meter of 19 mm 22 mm outside diameter for all external pipes and is made from an acid resistant material e g plastic overflow pipe The condensate discharge pipework must have a continuous fall 45 mm per metre and should whenever possible terminate at a suitable discharge point within the heated envelope of the building that will remain frost free under long periods of low external temperatures gt During installation remove all burs from inside of cut pipe work and avoid excessive adhesive which may trap small pockets of water close to the pipe wall which can freeze and build into a larger ice plug gt As with other pipe work insulate the condens
53. e air intake pipe Remove the three plugs from the gas valve 2 Remove the plug from the sensor on the Venturi 1 by pushing in the latching lug Unscrew the two cap nuts 5 and 4 on the gas valve Use an open ended spanner to counterhold the oppos ite side of the gas valve 4 and 5 when unscrewing Either remove the unit comprising the fan with gas valve Replacing the fan gt Page 30 or use an offset screw driver or Torx T20 socket to unscrew the fixing screw of gas valve 3 from the retainer Note The screw in the gas valve retainer secures the gas valve against turning and must be screwed back in once the gas valve has been replaced Remove the gas valve from the retainer Reinstall the new gas valve in the reverse order Use new seals for this When tightening the cap nuts on the gas valve use an open ended spanner to counterhold the opposite side of the gas valve 4 and 5 After installing the new gas valve perform a leak tight ness test gt Page 26 gas family check gt Page 20 and gas ratio setting gt Page 23 0020209591_00 ecoTEC plus Installation and maintenance instructions 9 6 4 Replacing the Venturi Remove the air intake pipe Remove the plug from the sensor on the Venturi 1 by pushing in the latching lug Unscrew the cap nuts 3 of the gas connection pipe 2 on the gas valve Remove the Venturi including the gas connection pipe from the fan by turni
54. e combustion air must not be taken from the installation site A Caution Risk of poisoning due to escaping flue gas Mineral oil based greases can damage the seals gt Instead of grease use only water or com mercially available soft soap to aid install ation 3 Install the flue pipe using the installation manual 16 5 8 2 Replacing the connection piece for the air flue pipe as required 1 Replace the connection piece for the air flue pipe as required The product specific standard equipment is listed under Technical data 2 Remove the connection piece for the air flue pipe gt Page 16 3 Alternatives 1 2 gt f required install the connection piece for the air flue pipe 80 125 mm diameter gt Page 16 3 Alternatives 2 2 gt If required install the connection piece with offset for the air flue pipe 60 100 mm diameter gt Page 16 5 8 2 1 Removing the connection piece for the air flue pipe 1 Insert a screwdriver into the slot between the measuring stub pipes 2 Press the screwdriver carefully down 1 3 Turn the connection piece anticlockwise 2 as far as it will go and then remove it by pulling it upwards 3 5 8 2 2 Installing the connection piece for the air flue pipe 80 125 mm diameter 1 Remove the connection piece for the air flue pipe gt Page 16 2 Insert the alternative connection piece In doing so pay attention to the latching lugs 3 Tu
55. e flexible gas pipe The corrugated gas pipe may become dam aged if weight is placed on it gt Do not suspend the compact thermal mod ule on the flexible gas pipe for example during maintenance work 1 4 Regulations directives laws standards Installation and maintenance of the boiler must only be performed by a competent per son with valid accreditation from the Health and Safety Executive in accordance with the Gas Safety Installation and Use Regula tions 1998 hereinafter abbreviated to com petent person or heating specialist com pany The existing regulations rules and guidelines must be observed when doing so Any special requirements of Local Author ities gas undertakings or insurers must be complied with The competent person is also responsible for inspection maintenance and repairs to the boiler and for checking gas volume setting and flue gas analysis Installers shall carryout a full site risk as sessment and put into place all necessary steps and procedures to comply with Health and safety at work act and ensure safety of themselves and others with regard to manual handling and working at height requirements During the appliance installation and any subsequent work such as the replacement of major parts it will be necessary to em ploy caution All installers and operatives in volved from unloading the appliance until it is fully mounted on the wall in its final installed locati
56. e to water pressure sensor or water pressure sensor defective 0020209591_00 ecoTEC plus Installation and maintenance instructions 47 Code Meaning Cause F 74 Water pressure sensor signal outside cor Line to water pressure sensor has a short circuit to 5 V 24 V or internal rect range too high fault in the water pressure sensor F 75 Fault No pressure change detection when Water pressure sensor and or pump defective air in the heating installa starting pump tion insufficient water in the product check adjustable bypass connect external expansion vessel to the return F 77 Fault Flue non return flap condensate No response from flue non return flap or condensate pump defective pump F 78 Interruption to DHW outlet sensor at the UK link box is connected but hot water NTC not bridged external controller F 80 Interruption or short circuit of secondary NTC defective NTC cable defective defective plug connection on NTC heat exchanger inlet sensor only in con defective plug connection on actoSTOR electronics nection with F 91 Sensor plug has short to earth to the casing short circuit in cable har ness sensor defective F 81 actoSTOR charging pump defective only in Cylinder is not fully charged after specified time combination withik 31 Check cylinder charging sensor and cylinder sensor Air in the actoSTOR pump Inspect cable harness for pump Check the impeller senso
57. eceiver Circulation pump remote control Power coding resistor Return temperature sensor Flow temperature sensor Fan Contact thermostat burner off 24 V DC room thermostat 13 14 15 16 17 18 19 20 21 Installation and maintenance instructions ecoTEC plus 0020209591_00 Bus connection digital room thermostat controller Diverter valve Water pressure sensor Cylinder temperature sensor Cylinder contact C1 C2 Gas group coding resistor Auxiliary relay select via D 026 Internal pump Ignition electrode Depending on product type E 2 Connection diagram product for heating mode only 2 37 kW H AON X25 n X41 X20 4 PWM 5 Masse mt 2 10 Zz I 2 Hallsignal SS l l X100 X40 X51 X35 X20 gt x lt N N X2 X X25 x24 28l z2 akj g X24 N X2 X100 z x16 lg 4 Q x16 N X1 Main PCB 4 Mass flow sensor
58. ect a pressure gauge 2 to the measuring nipple 1 5 Open the gas isolator cock 6 Start up the product with the check programme P 01 7 In addition ensure that maximum heat can be dissip ated into the heating system by turning up the room thermostat 8 With the boiler operating at full load check that the gas inlet working pressure at the reference test point com plies with the requirements Installation and maintenance instructions ecoTEC plus 0020209591_00 Permissible gas flow pressure for operation with G20 natural gas 1 3 2 3 kPa 13 0 23 0 mbar Permissible gas flow pressure for operation with G31 liquid gas 2 3 4 3 kPa 23 0 43 0 mbar 9 Should the pressure recorded at the reference test point in the boiler be lower than indicated check if there is any blockage in the pipework or if the pipework is un dersized Conditions Gas flow pressure not in the permissible range Caution Risk of material damage and operating faults caused by incorrect gas connec tion pressure If the gas connection pressure lies outside the permissible range this can cause oper ating faults in and damage to the product gt Do not make any adjustments to the product gt Do not start up the product gt If you cannot correct the failure notify the gas supply company and proceed as follows gt End the check programme P 01 gt Allow the boiler to cool down by allowing pump overrun to op
59. ed connection and a partition with a contact opening of at least 3 mm e g fuses or power switches Route a three core mains connection cable that com plies with the relevant standards through the cable duct and into the product Mains connection line Flexible line Carry out the wiring gt Page 17 Remove the supplied plug from the bracket in the elec tronics box and screw the plug onto the mains connec tion cable Close the electronics box Make sure that access to the mains connection is al ways available and is not covered or blocked 17 5 9 4 Installing the product in a moist environment Danger Risk of death from electric shock If you install the product in a room with high levels of moisture e g a bathroom observe the nationally recognised technical standards for electrical installations If you use the fact ory installed connection cable if installed with an earthed plug there is a risk of death from electric shock gt Never use the factory installed connection cable with earthed plug when installing the product in a moist environment gt Connect the product using a fixed connec tion and a partition with a contact open ing of at least 3 mm e g fuses or power switches gt Use a flexible line for the mains connec tion line which is routed through the cable duct into the product 1 Open the electronics box gt Page 17 2 Detach the plug from the PCB slot for the mains c
60. ee ceeeeeeeeeteeeeeeeeeeees 27 Side section installing cccccecceeeeeeeeeeeeeceeeeeeteeeeeeeeaees 13 Side section FEMOVING c cceceeeeseeeeeeceaeeeeeeeteeteeseneeees 13 Spar Parts Arpiar e tials a 29 Starting installation assistants 0 ccesceeeeeteeeeeeeteees 20 DSLALUS COG S ivecicecses a a a a a a 19 44 Supply of combustion aif eeee eenen rererere 5 SWITCHING Ko I Aena E T OT 19 Switching off product eesesseessesriieriserinsriiesrirerinrsrnnns 36 SWITCHING ON aair ee Meal aai a 19 T Target feed temperature i ssssssiinniineiiersiiereiniernirnnstneiennt 19 70 Telephone number competent person csceeee 20 Test ProQrarmMes ierisinde iagi 20 OOM s atra aa uses a cevue dat fusetaecisneel tne a E 6 Treating the heating water eee eeeeeeeeeeeneeeeeeeeesteeeeeaes 21 U Unit connection piece for the air flue pipe removing 16 Unit connection piece for the air flue pipe replacing 16 Unit connection piece with offset installing 16 Unit connection piece 80 125 mm diameter installing 16 Unloading the DOX irienn apan 11 V VeRtUM ritrae eiaeia eiee eara 30 Venturi replacing isinisisi diiri ieii 31 Voltage n iau ieda atA 5 w AAT ETTE LA i ae E EERTE SEE SEAE EEEE E E E A EEA 12 Installation and maintenance instructions ecoTEC plus 0020209591_00 0020209591_00 21 05 2015 Vaillant Ltd Nottingham Road Belper Derbyshire DE56
61. eeeeneees 26 Burner anti cycling time resetting eee eeeeeesteeeereees 27 Burner anti cycling time Setting 00 eeeeeeeeeesteeeeeees 26 B rher TEPIACING 3 sese zecesce ten ceccteeseteseccenceceeeesstebecceeesceeeescte s 29 Bypass valve Setting cccccecesecececeeeeeceeeeeeeeeeeeseseeeees 28 Cc Calling up diagnostics codes s 26 Calling up fault MEMOTY eee eeeeeeeeeeeceeeeeneeeeenaeeeeeeees 29 Calling up installer leVel eee eeseeeeeneeeeneeeeneeeeaees 18 Carrying out INSPECtION WOFK 0 00 ee eeeeeeecenteeeeeeeeeneeeeeeees 33 Carrying out maintenance WOFK ceeecesseeeeteeeenneeeeeees 33 CE laDG P E E E ET 10 Check programmes eccceeeeceseeeeeeeeeeneeseneeesneeeeenneeenaees 20 Checking the BUNE sisarena tone eteesene estes 35 Checking DUO e a e e aia 35 Checking CO2 Content ccccceeceseeeceeseneeceeeeeeeeeeeeseaeees 25 Checking pre charge pressure for the internal expansion a E E T 36 Circulation PUMP siisii tedadi 18 Cleaning cold water inlet filter n00nnneosene nasenne rneer 35 Cleaning heat exchanger sscsceereriiiiireriiersrrns 35 Clearing fault Memory sseeeeeeeeeerrierirrirsrriesrireernsrrens 29 CO2 content ChECKING c cceeceseeeeeeeeeeeeeeeeeeeeeeeenaees 25 COz Content setting ienie a aes 25 Cold water COnnection eeeeeeeeeirieerirrirerriesrirerrnerrrsns 14 Cold water inlet filter cleaning ccceceeeeeee
62. eenteeeeaa 32 Fle ating 1OWs cz eter EE ativere 15 Heating partial load 0 0 cece eee eeeeeeeeeneeeeeaeeeeeeeeenneeeeea 19 Heating fetu sssdccccecececcce soto i a iiaeaa 15 Hot water Connection sssesisssiesreieriireiisrriesrirerrirsrrsrens 14 Hot water temperature eee eeseeeeeeeeeeeeeeeneeeeeeeeenneeeeaa 19 l Identification plate i scc cides ccseveedene de soeneeesideenscheecenectnees 9 If you Smell Gas eiia nate eed este ete ia 4 Inspection work Carrying OUt eee eeeeeeeeneeteeeeeeeneeeeee 33 Inspection work completing eee ceeeeeeeeeeeeneeeeeeeeenneeeeee 36 Installation assistant ending cccceceeeeeeeeeeeeteeeeeeeees 20 Installation assistants restarting ccceeseeeeeseeeeeeeees 20 Installation Site eee eee eeeeeeeeeneeeeeeeeeeeeeesneeeeeeeeeenees 5 6 Installer level calling Up eee eeeeeeeeeeeeneeeeeneeeeeeeeneeeee 18 Installing compact thermal module 36 Installing unit connection piece with offset eee 16 Installing unit connection piece 80 125 mm diameter 16 Intended Useisiin id a ere eae h ee 4 Internal expansion vessel replacing eeeeseeeeeeee 32 ISolator dOVICES iiine iieii in 36 L WAN QUAGC 2 isiin aa aiea a eniai 19 Leak detection Spray ccccceceeceececeeeeneeeeeeeeaeeeeseeneeeeeseaaes 6 Liquid G S i a E E RE 4 14 M Mains CONNECTION w ss0202 ceseiecsstee ioeo ea aaa 17 Maintenance interval Setting
63. eer name Company name Company name Telephone No Telephone No Gas safe register No Gas safe register No At max rate Record At min rate where Possible At max rate Record At min rate Where Possible Comments Comments Signature All installations in England and Wales must be notified to Local Authority Building Control LABC either directly or through a Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer Heating and Hotwater Industry Council HHIC Signature COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS www centralheating co uk 60 Installation and maintenance instructions ecoTEC plus 0020209591_00 PRIOR TO CO AND COMBUSTION RATIO CHECK The boiler manufacturer s installation instructions should have been followed gas type verified and gas supply pressure rate checked as required prior to commissioning As part of the installation process especially where a flue has been fitted by persons other than the boiler installer visually check the integrity of the whole flue system to confirm that all components are correctly assembled fixed and supported Check that manufacturer s max flue lengths have not been exceeded and all guidance has been followed e g Gas Safe Technical
64. el Air intake pipe 10 11 12 13 14 15 16 17 18 Compact thermal mod ule Ignition electrode Fan Automatic air vent Pressure gauge Internal pump Bypass valve Expansion relief valve Diverter valve Electronics box 1 Gas valve 10 Ignition electrode Water pressure sensor 11 Fan Venturi with mass flow 12 Automatic air vent pensor 13 Pressure gauge Heat exchanger 14 Internal pump Connection for the flue 15 Bypass valve pipe 6 Flue gas measuring 16 Expansion relief valve stub pipe 17 Electronics box Expansion vessel 18 Diverter valve Air intake pipe 19 Impeller sensor hot water Secondary heat ex changer Compact thermal mod ule 20 3 2 The identification plate is mounted on the underside of the product in the factory Information on the identification plate Information on the identification plate Meaning gt CE label section Read the instructions CE AR VU Vaillant gas fired wall hung boiler for heating VUW Vaillant gas fired wall hung boiler for heating and hot water generation Information on the identification plate 6 5 5 Meaning Calorific value power product generation equipment ecoTEC plus Product description 2H G20 20 mbar 2 0 kPa Gas group and gas connection pressure as set at the factory ww yyyy Date of manufacture Week year Cat Permissible gas categories Types Approved
65. enance instructions ecoTEC plus 0020209591_00 Num ber Description Expansion relief valve connector Gas connection pipe Heating flow return connection pipe Cold water hot water connection pipe Service valve Bag with small parts A N N gt Lower cover Installation template Condensate drain hose Enclosed documentation 4 3 4 3 gt gt gt 4 3 gt gt gt gt gt gt 4 3 gt gt 0020209591_00 ecoTEC plus Installation and maintenance instructions Transporting the product 1 General Hold the load as close as possible to your body Do not twist your body instead reposition your feet If the unit is being lifted by two persons ensure your movements are coordinated during lifting Avoid bending your upper body do not lean forwards or to the side Wear appropriate cut resistant and non slip gloves to protect yourself against sharp edges and maintain a safe and secure grip If required get somebody to assist you in this 2 Unloading the box from the delivery van It is recommended that two people lift the unit together Lift the box using the straps provided Use safe lifting techniques keep your back straight and bend your legs at the knee Hold the load as close as possible to your body If the unit is being lifted by two persons ensure your movements are coordinated du
66. eplace the gas restrictor with an appropriate spare part 14 Perform a gas family check gt Page 20 9 6 5 Replacing the heat exchanger 1 Drain the product gt Page 36 2 Remove the compact thermal module gt Page 34 3 Detach the condensate drain hose from the heat ex changer 4 Remove the clamps 2 and 3 from the flow connec tion and the return connection 5 Detach the flow connection Detach the return connection 7 Remove two screws 1 on each of the two retainers D 32 11 12 13 14 15 16 Remove the lower three screws 2 on the rear section of the retainer Swing the retainer to the side around the top screw 1 Pull the heat exchanger downwards and to the right and remove it from the product Install the new heat exchanger in reverse order Replace the seals Insert the flow and return connections into the heat exchanger as far as they will go Make sure that the brackets are seated correctly on the flow and return connections Install the compact thermal module gt Page 36 Note Instead of grease use only water or com mercially available soft soap to aid installa tion Fill and purge the product and if necessary the heating installation gt Page 22 9 6 6 Replacing the expansion vessel 1 Drain the product gt Page 36 gt a INU 2 NO sT gi oe w N Undo the screwed connection 4
67. er to the controller lt The product adopts the set target temperature that is set on the controller 7 417 Thoroughly flushing the heating installation hot 1 Operate the appliance until the boiler and the heating system are up to temperature 2 Check the heating system for leaks 3 Connect a hose to the drain valve located at the lowest position of the heating system 4 Shut off the boiler open the drain valve and all purge valves on the radiators and allow the water to flow out of the heating system and the boiler quickly and fully 5 Close the drain valve 26 6 Fill the heating system again with water as described in Filling the heating installation gt Page 22 and Purging the heating installation gt Page 23 7 Re fill the system until the system design pressure of 0 1 MPa 1 0 bar is attained Note The actual reading on the digital pressure gauge should ideally be 0 05 MPa 0 5 bar plus an additional pressure corresponding to the highest point of the system above the base of the boiler 10 m head equals an ad ditional 1 bar reading on the pressure gauge The minimum pressure should not be less than 0 1 MPa 1 bar in any installation If the system is to be treated with an inhibitor it should be applied at this stage in accordance with the manufacturer s instructions Further information can be obtained from Sentinel Betz Dearborn Ltd Tel 0151 420 9595 or Fernox Alpha Fry technologie
68. erate for a minimum of two minutes Close the gas isolator cock Remove the pressure gauge and retighten the sealing screw 1 for the measuring nipple Open the gas isolator cock Check the measuring nipple for gas tightness Close the gas isolator cock Install the front casing Disconnect the product from the power mains You must not start up the boiler vv vvvvvy Conditions Gas flow pressure in the permissible range gt End the check programme P 01 gt Allow the boiler to cool down allowing pump overrun to operate for a minimum of two minutes Close the gas isolator cock Remove the pressure gauge and retighten the sealing screw 1 for the measuring nipple Open the gas isolator cock Check the measuring nipple for gas tightness Install the front casing Reset boiler controls for normal operation Record the appliance gas inlet working pressure kPa resp mbar in the Benchmark gas boiler commissioning checklist vv vvvvy 7 15 5 Checking the CO2 content and if necessary adjusting it air index setting 1 Start up the product with the check programme P 01 2 Wait at least five minutes until the product reaches its operating temperature 3 Measure the COz and CO CO content at the flue gas analysis point 4 Compare the measured value with the corresponding value in the table 0020209591_00 ecoTEC plus Installation and maintenance instructions Settings Unit G20 G31 liquid natur
69. f Installation and maintenance instructions For the competent person Installation and maintenance instructions ecoTEC plus VU VUW GB IE Publisher manufacturer Vaillant GmbH Berghauser Str 40 8 D 42859 Remscheid Tel 4921 9118 0 8 Fax 4921 91 18 28 10 info vaillant de www vaillant de Vaillant Contents 1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4 2 5 3 1 3 2 3 3 3 4 3 5 4 1 4 2 4 3 44 4 5 4 6 4 7 4 8 4 9 4 10 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 1 6 2 6 3 6 4 7 1 7 2 7 3 7 4 7 5 I A AA 4 Action related warnings cccccesseseeeeeeeeees 4 Intended USE iniii aei e a aa 4 General safety information aeeceeeeee 4 Regulations directives laws standards 6 Notes on the documentation cccceseeeeees 8 Observing other applicable documents 8 Storing documents 8 Applicability of the instructions 0 eee 8 Benchmark isss ponian ii 8 Local regulations 2 ccscsecsedsseseceeseceeeeteeeseeeee 8 Product description 2 ccccesscceeeeseeeeeeeeeeeees 9 Product design sosi ee eee 9 Information on the identification plate 9 Seral NUMDET ssas nesai aiie 10 CE label aree e aeaaee a anaa ee dl 10 Energy Saving Trust Endorsed Products 10 Installation ceeessseeeeeeeeeeeeenseeeeeeeeeeeeeesnseeenes 10 Unpacking the product 10 Checking the scope of delivery 10 Transporting
70. facturer s instructions The operation of the boiler and system controls have been demonstrated to and understood by the customer The manufacturer s literature including Benchmark Checklist and Service Record has been explained and left with the customer Commissioning Engineer s Signature Customer s Signature To confirm satisfactory demonstration and receipt of manufacturer s literature All installations in England and Wales must be notified to Local Authority Building Control LABC either directly or through a Y VLA Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer EE ranean AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Heating and Hotwater Industry Council HHIC www centralheating co uk 0020209591_00 ecoTEC plus Installation and maintenance instructions 59 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 01 SERVICE 02 Engineer name Engineer name Company name Company name Telephone No Telephone No Gas safe register No Gas s
71. g suitable insu lating material 14 5 2 Installing the gas connection 1 Install the gas line in accordance with the recognised rules of technology 2 Connect the product to the gas line as shown in ac cordance with the recognised rules of good engineering practice 3 Remove the residues from the gas line by blowing through the gas line beforehand 4 Purge the gas line before start up 5 Check the gas line for leak tightness 5 3 Installing the hot and cold water connection Applicability Product with integrated hot water generation 1 Make the water connections as shown in accordance with the relevant standards 2 Ensure correct water pressure and flow requirements and that any expansion can be accommodated with the cold supply pipe work Installation and maintenance instructions ecoTEC plus 0020209591_00 5 4 Connecting the domestic hot water cylinder Applicability Product with heating mode only gt When connecting the domestic hot water cylinder follow the Installation instructions for the domestic hot water cylinder 5 5 Connecting the heating flow and heating return gt Make the heating connections as shown in accordance with the relevant standards 5 6 Connecting the condensate drain pipework Danger Risk of death from escaping flue gases The condensate drain pipework for the si phon must not be connected tightly to waste water piping be
72. gas guiding and in struct the operator that he must not make any changes gt Inform the operator that they must not store or use ex plosive or highly flammable substances such as petrol paper or paint in the installation room of the product gt Complete and sign off the Benchmark commissioning check list gt Complete and sign off the guarantee documentation Installation and maintenance instructions ecoTEC plus 0020209591_00 9 Troubleshooting 9 1 Checking service messages appears if you have set a maintenance interval for ex ample and this has passed or a service message is issued The product is not in fault mode gt Navigate to Menu gt Live Monitor and confirm by press ing OQ Conditions S 40 is displayed The product is in Comfort protection mode The product con tinues to run with restricted comfort after it has detected a fault gt To establish whether or not a component is defective read the fault memory gt Page 29 9 2 Rectifying faults gt If fault messages F XX appear rectify the fault by re ferring to the table in the appendix or using the Function Note If no fault message is present the product will automatically switch back to normal operating mode after a certain time menu gt Page 34 and the Check programs gt Page 20 If several faults occur at the same time the display shows the corresponding fault messages for two seconds each in alternation gt Press
73. gt You must carry out an annual inspection of the product The annual inspection can be effectively performed without removing components by requesting data from the DIA system carrying out the simple visual checks in dicated in the table in the appendix and performing a flue gas measurement The maintenance intervals and their scope are determined by the heating engineer based on the condition of the boiler found during the inspection All inspection and maintenance work should be performed in the order specified in the table in the appendix Inspection and maintenance work Overview gt Page 56 During any inspection and maintenance or after change of parts of the combustion circuit the following must be checked The boiler has been installed in accordance with the rel evant installation instructions The integrity of the flue gas installation and flue seals is in accordance with the relevant flue installation instruc tions enclosed 33 Visual the integrity of the boiler combustion circuit and relevant seals paying particular attention to the burner door seal The gas inlet working pressure at maximum rate The gas flow rates Correctness of electrical water and gas connections Correctness of the water pressure The condition of the whole system in particular the con dition of radiator valves evidence of leakage from the gt Replace the seal each time you open the heating syste
74. hnical data Hot water handling 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5 GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Lowest water volume 2 0 I min 2 0 I min 2 0 l min 2 0 l min Water volume at 12 3 I min 15 2 I min 16 7 I min 18 5 I min AT 30 K Water volume at 10 5 I min 13 0 I min 14 3 l min 15 9 l min AT 35 K Water volume at 8 8 l min 10 9 I min 11 9 I min 13 2 l min AT 42 K Permitted overpressure 1 0 MPa 1 0 MPa 1 0 MPa 1 0 MPa 10 0 bar 10 0 bar 10 0 bar 10 0 bar Required connection 0 035 MPa 0 035 MPa 0 035 MPa 0 035 MPa pressure 0 350 bar 0 350 bar 0 350 bar 0 350 bar Hot water output temper 35 65 C 35 65 C 35 65 C 35 65 C ature range Technical data Electrics 612 VU GB 615 VU GB 618 VU GB 624 VU GB 630 VU GB 637 VU GB 126 5 5 A 156 5 5 A 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Electric connection 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz Permissible connected 190 253 V 190 253 V 190 253 V 190 253 V 190 253 V 190 253 V voltage Built in fuse slow blow 2A 2A 2A 2A 2A 2A Min electrical power con 35 W 35 W 35 W 35 W 45 W 55 W sumption Max electrical power 50 W 55 W 65 W 70 W 80 W 115 W consumption Standby electrical power lt 2W lt 2W lt 2W lt 2W lt 2W lt 3W consumption Level
75. ice TAE has triggered condensate duct blocked incorrect gas restrictor incorrect spare part gas valve fault on the gas valve multiple plug on PCB incorrectly plugged in break in cable harness ignition system ignition transformer ignition cable ignition plug ignition electrode defective ionisation current interrupted cable electrode incorrect earthing of product electronics defective F 29 Failure during operation Re ignition unsuc Gas supply temporarily stopped flue gas recirculation condensate duct cessful blocked defective earthing of product ignition transformer has spark failure F 32 Fan fault Plug on fan not correctly plugged in multiple plug on PCB not correctly plugged in break in cable harness fan blocked Hall sensor defective electronics defective F 42 Coding resistance fault possible in combin Short circuit interruption in output range coding resistance in cable ation with F 70 harness at heat exchanger or gas group resistor on PCB 46 Installation and maintenance instructions ecoTEC plus 0020209591_00 Code F 49 Meaning Fault eBUS Cause Short circuit on eBUS eBUS overload or two power supplies with differ ent polarities on the eBUS F 52 Contact fault mass flow sensor Venturi The mass flow sensor Venturi is not connected electrically The plug is not plugged in correctly The plug is not plugged in The plug is defective The slot is defective loose connection
76. ing D 073 Warm start target offset Adjustable from 15 K to 5 K 0 D 074 actoSTOR anti legionella function 0 Off 1 On 1 0n D 075 Max charging time for domestic hot 20 90 min 45 mins water cylinder without independent control system D 076 Device Specific Number Device 1 612 VU GB 126 5 5 Not ad specific number DSN 3 615 VU GB 156 5 5 justable 4 618 VU GB 186 5 5 9 624 VU GB 246 5 5 14 630 VU GB 306 5 5 20 637 VU GB 376 5 5 6 825 VUW GB 256 5 5 10 832 VUW GB 326 5 5 13 835 VUW GB 356 5 5 17 838 VUW GB 386 5 5 D 077 Limit on cylinder charging output in Adjustable cylinder charging output in kW kW D 078 Limit on cylinder charging temperat 50 C 80 C 75 C ure in C Note The chosen value must be at least 15 K or 15 C above the set cylinder target value D 080 Operating hours heating In hours h Not ad justable D 081 Operating hours hot water genera In hours h Not ad tion justable D 082 Number of burner start ups in heat Number of burner start ups Not ad ing mode justable D 083 Number of burner start ups in hot Number of burner start ups Not ad water mode justable D 084 Maintenance indicator Number of Adjustment range 0 to 3000 hrs and for deactivated hours until the next maintenance 0020209591 _00 ecoTEC plus Installation and maintenance instructions 43
77. installation Fit the double non return valve 1 of the filling line to the cold water stop valve and secure the valve with the spring clip 2 To fill first open the stop valve 3 Open the stop valve 4 so that the water flows into the heating system Fill the heating system gt Purge the lowest radiator until water flows out of the purging valve without bubbles v vv gt Purge all other radiators until the entire heating system has been filled with water gt Close all purging valves gt Monitor the rising filling pressure in the heating installa tion gt Fill with water until the required filling pressure is reached gt After filling close both stop valves and disconnect the filling device by removing the double non return valve from the cold water stop valve Note Both stop valves must be closed while the heating system is operating and the filling line must be removed from the double non return valve again Conditions Applies to Products with heating mode only gt Connect the filling and drainage tap in the heating in stallation to a heating water supply if possible with the Installation and maintenance instructions ecoTEC plus 0020209591_00 cold water valve in accordance with the relevant stand ards gt Open the heating water supply gt Open all radiator valves thermostatic radiator valves of the heating installation gt f necessary check that both service valves on the
78. l i every five years 20 Perform the gas family check X 21 Visually inspect the ignition and burner behaviour X X 22 Check the CO2 content the air ratio of the product again X 23 Check the product for gas flue gas hot water and condensate leaks and repair if necessary x X 24 Record the inspection maintenance work carried out X X 0020209591_00 ecoTEC plus Installation and maintenance instructions 57 G Commissioning Checklist Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the manufacturers instructions and the data fields on the commissioning checklist completed in full To instigate the boiler guarantee the boiler needs to be registered with the manufacturer within one month of the installation To maintain the boiler guarantee it is essential that the boiler is serviced annually by a Gas Safe registered engineer who has been trained on the boiler installed The service details should be recorded on the Benchmark Service Interval Record and left with the householder DCNCHINIA COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS www centralheating co uk Heating and Hotwater Industry Council HHIC 58 Installation and maintenance instructions ecoTEC plus 0020209591_00 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklis
79. layed shutdown of gas valve detected Secondary light ignition and monitoring electrode indicates delayed extinguishing of the flame signal Gas valve defective PCB defective F 63 Fault EEPROM Electronics defective F 64 Fault Electronics NTC Flow or return NTC short circuited electronics defective F 65 Fault Electronics temp Electronics overheating due to external influences electronics defective F 67 Fault Electronics flame Implausible flame signal electronics defective F 68 Fault Unstable flame signal Air in gas gas flow pressure too low incorrect air ratio condensate duct blocked incorrect gas restrictor ionisation flow interruption cable electrode flue gas recirculation condensate duct F 70 Invalid device specific number DSN If spare parts fitted Display and PCB replaced at same time and DSN not reset incorrect or missing output range coding resistance F 71 Flow NTC fault Flow temperature sensor signalling constant value Flow temperature sensor incorrectly positioned at supply pipe Flow temperature sensor defective F 72 Flow return NTC fault Flow return NTC temperature difference too great gt flow and or return temperature sensor defective F 73 Water pressure sensor signal in the wrong range too low Interruption short circuit of water pressure sensor interruption short circuit to GND in supply lin
80. ling Up eeeeeeeseeeeteeeeteeeeneeeeeeees 26 Discharge pipe expansion relief valve 16 Disposal packaging 0 00 eeeseeceeceeeeeeeseneeseeeeeeneeeeenaeeteenees 37 0020209591_00 ecoTEC plus Installation and maintenance instructions Disposing of the packaging eeeeeeeeeeeeeetteeeeeeeeeneeeeeea 37 Document inne a E EE EE ER 8 Draining product etae perei aeieeiaii 36 E Electricity a ehlo eect 5 Electronics box CIOSING ccccccceeeeseceeeeeeeeeeeeeeseneeeeeeeees 17 Electronics box Opening cccceceeeeceeeceeeeeeeeeeseneeeeeeees 17 Electronics self test ccccecceseccceeeeeeceeeeeeeeeeeeeseaeeeeeeees 34 Ending installation assistant 0 ccccccccseceeeeeteeeeeeees 20 F Fan repla ihg e aea a vee tats deeatesees 30 Fault codes Frosi rerios peen a e iaae eai Function menu G GaS CONVeErS ON 2 s ccssecrccesecetencsssecssssnestsiesteteeeseonee cneeteeen tes 23 Gas family check performing 20 Gas ratio Setting s csee eich vene eee geese denen eeeti geste eeenedeetiaees 23 Gas restricton i 4 Mis aveet ie ei avon Me el A Beak 31 Gas VaIVG siaaa ha dea 30 Gas valve replacing cee cecseeescecesneecenneeseneeeeneeseneeeeeees 30 H Handing over to the operator 28 FIANCIIING 2 8 cxse act ece tees ne a E e aen ara Aea raea 11 Heat exchanger cleaning eeeeeeireeerieeerreerrrernre 35 Heat exchanger replacing eeseceeseeeeeeeesneeeeeee
81. lue integrity has been visually checked in accordance with the Prior to CO and combustion ratio check box above before proceeding to the Check CO and combustion ratio at maximum rate stage below VERIFY FLUE INTEGRITY Analyser readings indicate that combustion products and inlet air must be mixing Further investigation of the flue is therefore required Check that flue components are assembled fixed and supported as per boiler flue manufacturer s instructions Check that flue and flue terminal are not obstructed Is O 20 6 and CO lt 0 2 Is O 20 6 and CO lt 0 2 NO TURN OFF APPLIANCE AND CALL MANUFACTURER S TECHNICAL HELPLINE FOR ADVICE THE APPLIANCE MUST NOT BE COMMISSIONED UNTIL PROBLEMS ARE IDENTIFIED AND RESOLVED CHECK CO AND COMBUSTION RATIO AT MAX RATE With boiler still set at maximum rate insert analyser probe into flue gas sampling point Allow readings to stabilise before recording NOTE If no flue gas sampling point is present and the correct procedure is not specified in the manual consult boiler manufacturer for guidance CO less than 350ppm and CO CO ratio less than 0 004 Check all seals around the appliance burner NO internal flue seals door and case seals Rectify where necessary YES Is COless than 335ppm and CO CO ratio less than 0 004 YES SET BOILER TO MINIMUM RATE In accordance with boiler in
82. lus 0020209591_00 are any leaks In this case there is a risk of explosion gt Make sure that liquid gas cannot escape from the product or the gas line under any circumstance 1 3 4 Risk of death due to blocked or leaking flue gas routes Installation errors damage tampering unau thorised installation sites or similar can cause flue gas to escape and result in a risk of pois oning What to do if you smell flue gas in the prop erty gt Open all accessible doors and windows fully to provide ventilation gt Switch off the product gt Check the flue gas routes in the product and the flue gas diversions 1 3 5 Risk of poisoning and burns caused by escaping hot flue gases gt Only operate the product if the air flue pipe has been completely installed gt With the exception of short periods for testing purposes only operate the product when the front casing is installed and closed 1 3 6 Risk of death due to explosive and flammable materials gt Do not use or store explosive or flammable materials e g petrol paper paint in the installation room of the product 1 3 7 Risk of death due to cabinet type casing Cabinet type casing can give rise to danger ous situations when used on a product which is operated with an open flue gt Ensure that the product is supplied with sufficient combustion air 0020209591_00 ecoTEC plus Installation and maintenance instructions 1 3 8 Risk of
83. m and dripping taps burner flange gt Replace the self locking nuts on the burner flange each time you open the burner flange gt Ifthe insulating mat on the burner flange or on the back wall of the heat exchanger shows signs of damage replace the insu Danger Risk of death and risk of material damage caused by hot flue gas The seal insulating mat and self locking nuts on the burner flange must not be damaged Otherwise hot flue gases may escape and cause personal injury and material damage gt Correct any faults before proceeding 10 1 Function menu Menu gt Installer level Test programs gt Function menu The function menu allows you to actuate and test individual components in the heating installation lating mat Test Display Programme Action 1 Switch off the product using the on off button 2 Close the gas isolator cock T 01 Check internal Switch the internal pump on 3 Remove the front casing gt Page 13 ing gt pump and off T 02 Check 3 way Move the diverter valve to d Silk Mielec Tonite Box foward valve the heating position or to the hot water position T 03 Check fan Switch the fan on and off The fan runs at maximum rotational speed T 04 Check cylinder Switch the cylinder charging charge pump pump on and off T 05 Check circula Switch the circulation pump tion pump on and off T 06 Check external Switch the external
84. mperat 70 C 70 C 70 C 70 C ure Approved gas fired units C13 C33 C13 C33 C13 C33 C13 C33 C43 C53 C43 C53 C43 C53 C43 C53 30 efficiency 108 5 109 109 109 NOx class 5 5 5 5 SEDBUK 2005 A A A A SEDBUK 2009 89 3 89 3 89 3 89 3 G20 G31 Boiler dimension width 440 mm 440 mm 440 mm 440 mm Boiler dimension height 720 mm 720 mm 720 mm 720 mm Boiler dimension depth 338 mm 338 mm 372 mm 406 mm Mounting weight 36 kg 37 kg 38 kg 43 kg Technical data G20 power loading G20 612 VU GB 615 VU GB 618 VU GB 624 VU GB 630 VU GB 637 VU GB 126 5 5 A 156 5 5 A 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Nominal heat output 3 3 3 3 4 2 5 7 6 4 7 1 range P at 50 30 C 12 9 kw 16 1 kW 19 3 kW 25 7 KW 32 2 kW 39 6 kW Nominal heat output 3 0 3 0 3 8 5 2 5 8 6 4 range P at 80 60 C 12 2 kW 15 4 kW 18 5 kW lt 24 4 kW 30 4 kW 37 6 kW Maximum heat output for 12 2 kW 15 4 kW 18 5 kW 24 4 kw 30 4 kW 37 6 kW hot water generation Maximum heat input for 12 4 kw 15 7 kW 18 9 kW 24 9 kW 31 0 kW 38 4 kW hot water generation Maximum heat input 12 4 kw 15 5 kW 18 6 kW 24 7 kW 30 9 kW 38 1 kW heating side Minimum heat input 3 2 kW 3 2 kW 4 0 kw 5 5 kW 6 2 kW 6 8 kW Heating adjustment range 3 12 kW 3 15 kW 4 19 kw 5 24 kW 6 30 kW 6 38 kW 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5
85. n of conformity If you do not use cer tified Vaillant original spare parts for maintenance or repair work this voids the conformity of the product We therefore strongly recommend that you fit Vaillant genuine spare parts Information about available Vaillant original spare parts is available by contacting the contact address provided on the reverse of this document Procuring spare parts gt If you require spare parts for maintenance or repair work use only Vaillant genuine spare parts 9 6 Replacing defective components 9 6 1 1 Remove the compact thermal module gt Page 34 Replacing the burner Undo the four screws 1 on the burner Remove the burner Install a new seal 2 on the new burner Install the compact thermal module gt Page 36 akwWDN 29 9 6 2 Replacing the fan 11 Remove the gas valve retainer 1 from the fan by un screwing the three screws 2 pemeve te A A pipe 12 Replace the defective fan Remove the three plugs from the gas valve 5 Remove the plug from the sensor on the Venturi 3 by pushing in the latching lug Remove the plug plugs 4 depending on the unit design from the fan motor by pushing in the latching lug in each case Unscrew the two cap nuts 7 and 6 on the gas valve Use an open ended spanner to counterhold the oppos ite side of the gas valve when unscrewing Unscrew the three screws 2 between the mix
86. nance instructions ecoTEC plus 0020209591_00 E Connection diagrams cesseceeeeeeerereeeees 49 E 1 Connection diagram product for heating mode ONY 1235 KWo e ipii aaie 49 E 2 Connection diagram product for heating mode ONY 32 E TAAN E E EES 51 E 3 Connection diagram product with integrated hot water generation 12 35 KW ssssssssesssesen 53 E 4 Connection diagram product with integrated hot water generation 37 KW ceeeeeee 55 F Inspection and maintenance work OVEVIOW a eaaa oraraa anarai aaraa 56 G Commissioning Checklist csscseeeeesseeees 58 H Opening of the flue pipe 2 eeeeeeeeeees 62 H 1 Positioning of the opening of a fan supported fluegas pipes i r eed tena econ 62 l Text from BS 5440 1 on fan supported flue GAS PPO AE A ena ce ocean T 63 J Opening of the flue pipe below eaves and DalCOMlOS E a E EA TA 63 K Technical data c cccccesseeceeseeeeeeeeeeeeeeeees 63 IN ED E eevee cee ii eet ae heel ee ees 69 0020209591_00 ecoTEC plus Installation and maintenance instructions 1 Safety 1 1 Classification of action related warnings The action related warnings are classified in accordance with the severity of the possible danger using the following warning signs and signal words Action related warnings Warning symbols and signal words Danger Imminent danger to life or risk of severe personal injury Danger Risk of death from elect
87. nd maintenance instructions Total Water hardness at specific system volume heating output lt 20 I kW chee gt 50 I kW ppm ppm ppm kW CaCO mol m CaCO mol m CaCO mol m lt 50 lt 300 lt 3 200 2 2 0 02 gt 50 200 2 150 1 5 2 0 02 to lt 200 gt 200 150 1 5 2 0 02 2 0 02 to lt 600 gt 600 2 0 02 2 0 02 2 0 02 1 Nominal capacity in litres heating output in the case of multi boiler systems the smallest single heating output is to be used Caution Risk of material damage if the heating water is treated with unsuitable additives Unsuitable additives may cause changes in the components noises in heating mode and possibly subsequent damage gt Do not use any unsuitable frost and cor rosion protection agents biocides or seal ants No incompatibility with our products has been detected to date with proper use of the following additives gt When using additives follow the manufacturer s instruc tions without exception We accept no liability for the compatibility of any additive or its effectiveness in the rest of the heating system Additives for cleaning measures subsequent flushing required Fernox F3 Sentinel X 300 Sentinel X 400 Additives intended to remain permanently in the system Fernox F1 Fernox F2 Sentinel X 100 Sentinel X 200 Additives for frost protection intended to remain permanently in the
88. ng circuit purging 1 x Cancel End purge programme Note The purge programme runs for 7 5 min per circuit and then terminates Purging the heating circuit Diverter valve in heating position actuation of in ternal pump for 9 cycles 30 sec on 20 sec off Display Active heating circuit Purging the hot water circuit After the above mentioned cycles have run or the right hand selection button has been pressed again Diverter valve in the hot water position actuation of the internal pump as above Display Active hot water circuit Installation and maintenance instructions ecoTEC plus 0020209591_00 Display P 01 Meaning Maximum load check programme After successful ignition the product is operated at maximum heat input P 02 Minimum load check programme After successful ignition the product is operated at minimum heat input P 06 Filling mode check programme The diverter valve is moved to the mid position The burner and pump are switched off to fill or drain the product 7 8 Checking and treating the heating water filling and supplementary water Caution Risk of material damage due to poor qual ity heating water gt Ensure that the heating water is of suffi cient quality gt Before filling or topping up the system check the quality of the heating water Checking the quality of the heating water gt Remove a little water from the heating ci
89. ng the bayonet fitting on the Venturi anti clockwise as far as it goes and removing it straight from the fan Remove the gas connection pipe 1 from the Venturi 3 by removing the clamp 4 and pulling the gas con nection pipe out vertically Dispose of the seal 7 Pull the gas restrictor 6 straight off and keep it for re use Check whether the Venturi is free of residue at the gas inlet side Caution Risk of material damage to the product Lubricant can block function related channels in the Venturi gt Do not use lubricant when installing the gas restrictor Ensure that you use the correct gas restrictor colour coding and position of pins on the underside of the gas 31 restrictor The colour of the gas restrictor must match the colour of the coding resistor on the PCB 9 Insert the gas restrictor for the gas group in question into the new Venturi yellow G20 natural gas grey Liquid gas When inserting the gas restrictor ensure that the gas restrictor is correctly aligned using the indicated pos ition marks on the upper side of the Venturi and also the positioning pins 5 on the underside of the gas re strictor 10 11 Refit the components in the reverse order Use new seals for this 12 After installing the new Venturi carry out a gas ratio setting gt Page 23 13 If you cannot adjust the CO2 content the gas restrictor has been damaged during installation In this case r
90. ntenance repairs and decommission ing must only be carried out by a compet ent person who is sufficiently qualified to ob serve all of the instructions that come with the product to proceed in accordance with the current state of the art and to comply with all applicable directives standards laws and other regulations 1 3 2 Risk of death from escaping gas What to do if you smell gas in the building gt Avoid rooms that smell of gas gt If possible open doors and windows fully and ensure adequate ventilation gt Do not use naked flames e g lighters matches gt Do not smoke gt Do not use any electrical switches mains plugs doorbells telephones or other com munication systems in the building gt If itis safe to do so close the emergency control valve or the main isolator gt If possible close the gas isolator cock on the product gt Warn other occupants in the building by yelling or banging on doors or walls gt Leave the building immediately and ensure that others do not enter the building gt Notify the gas supply company or National Grid Transco 44 0 800 111999 by tele phone from outside of the building 1 3 3 Risk of death from leaks if the product is installed below ground level Liquid gas is accumulating at floor level If the product is installed below ground level liquid gas may accumulate at floor level if there Installation and maintenance instructions ecoTEC p
91. of protection IP X4 D IP X4 D IP X4 D IP X4 D IP X4 D IP X4 D Test symbol registration CE CE CE CE CE CE no 0085CM0320 0085CM0320 0085CM0320 0085CM0320 0085CM0320 0085CM0320 0020209591_00 ecoTEC plus Installation and maintenance instructions 67 825 VUW 832 VUW 835 VUW 838 VUW GB 256 5 5 GB 326 5 5 GB 356 5 5 GB 386 5 5 ecoTEC plus ecoTEC plus ecoTEC plus ecoTEC plus Electric connection 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz Permissible connected 190 253 V 190 253 V 190 253 V 190 253 V voltage Built in fuse slow blow 2A 2A 2A 2A Min electrical power con 35 W 35 W 45 W 55 W sumption Max electrical power 65 W 85 W 90 W 120 W consumption Standby electrical power lt 2W lt 2W lt 2W lt 3W consumption Level of protection IP X4 D IP X4 D IP X4 D IP X4 D Test symbol registration CE CE CE CE no 0085CM0320 0085CM0320 0085CM0320 0085CM0320 68 Installation and maintenance instructions ecoTEC plus 0020209591_00 Index A Aif index setting erna e et 25 Air flu pipe canei ri aii 16 Air flue pipe installed eeeeeeeeerieserresrrrerrneernsres 5 Appliance CONFIG 1 0 eeeeceeeeeeeeeeeeennee cess eeneeeeeaeeseaeeenneeeeas 26 Article NUMDED sirni hareatan nasini aee aiae 10 Automatic air Vent sssini idi iadi 22 Auxillary relayi ni a ae a a sa a aa 19 B Burner anti cycling time eeceeeeeeseseeeeeeeeeseeeeena
92. on Mass flow sensor Venturi defective wet blocked Do not wet the sensor do not use any lubricants on the O ring on the Venturi LED actoSTOR electronics status LED on Communication OK actoSTOR LED flashing Communication not OK module LED off No power supply Commu No communication with the PCB Communication fault between display and PCB in the electronics box nication fault 48 Installation and maintenance instructions ecoTEC plus 0020209591_00 E Connection diagrams E 1 Connection diagram product for heating mode only 12 35 kW X40 X51 X24 24V sng ly 40g SENDAS X2 X100 Sna Av 1 _HO sung T E E i ORION e D ido X16 230V 1 Main PCB 0020209591_00 ecoTEC plus Installation and maintenance instructions Operator control panel PCB 49 N OD 11 12 50 Gas valve Mass flow sensor Outside temperature sensor flow temperature sensor optional external DCF r
93. on nection X1 3 Unscrew the plug of the factory installed mains connec tion cable if installed 4 Instead of the factory installed mains connection cable if installed use a suitable three core mains connection cable which complies with the relevant standards 5 Carry out the wiring gt Page 17 Close the electronics box 7 Observe the flue gas connection that is required on a room sealed air flue gas installation gt Page 16 D 5 9 5 Connecting controllers to the electronic system Install the controller if necessary Open the electronics box gt Page 17 Carry out the wiring gt Page 17 Observe the connection diagram in the appendix PoON gt s gt Conditions Connecting a weather compensator or a room temperature controller via eBUS gt Connect the controller to the eBUS connection gt Bridge the 24 V RT connection X100 or X106 if there is not already a bridge Conditions Connecting a low voltage controller 24 V gt Remove the bridge and connect the controller to the 24 V RT connection X100 or X106 Conditions Connecting a limit thermostat for underfloor heating gt Remove the bridge and connect the limit thermostat to the Burner off connection 5 Close the electronics box 6 For multi circuit controllers change D 018 from Eco in termittently operating pump to Comfort continuously operating pump gt Page 26 18 5 9 6 Connecting additional components
94. on parallel operation 2 Permanent heating mode position Purge programme Automatic adaptive purging of the heating circuit and hot water circuit Not active Active Flow temp setpoint 30 75 C 1 DHW temperature 35 60 C 1 Product with hot water generation Fault lists are only displayed and can only be deleted if faults have occurred 0020209591_00 ecoTEC plus Installation and maintenance instructions 39 Setting level Values Default Unit Increment select explanation f Min Max setting Comfort mode On Off Heating partial load kW Partial load only full load only auto Auto Auxiliary relay 1 10 1 Circulation pump 2 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Accessory relay 1 1 10 1 Circulation pump 2 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Accessory relay 2 1 10 1 Circulation pump 2 2 External pump 3 Cylinder charging pump 4 Extractor hood 5
95. on must exercise full duty of care for themselves and others with regard to safety When lifting and handling this appliance op eratives should employ assistance In certain situations it may be necessary to use mech anical handling aids Take care to avoid trip hazards slippery or wet surfaces Employers and installers should refer to the HSE web site for full advice and manual handling assessment charts MAC tool In addition where no specific instructions are given then reference shall be made but not restricted to all applicable and relevant Brit ish Standards and codes of practice such as the following Gas Safety Installation and Use regula tions All current Building Regulations for Eng land Northern Ireland and Wales as amended This includes Approved Codes of Practice and approved documents and Installation and maintenance instructions ecoTEC plus 0020209591_00 guidance for building regulations A to P and 7 The Building Standards Scotland and any requirements determined by the local authorities within The Health and safety at work act COSHH Control of Substances Hazardous to Health BS 7671 Requirements for electrical in stallations IEE Wiring Regulations The Electricity at Work Regulations The Water supply water fittings regula tions 1999 Water bylaws 2000 Scotland BS 5854 Code of practice for flues and flue structures in buildings BS EN 12828 Design of water based hea
96. or NTC only in combination with F 91 F 20 Safety switch off Temperature limiter Incorrect earth connection between cable harness and product flow or return NTC defective loose connection black discharge via ignition cable ignition plug or ignition electrode F 22 Safety switch off Low water pressure No or insufficient water in the product water pressure sensor defective cable to pump or water pressure sensor loose not connected defective F 23 Safety switch off Temperature difference Pump blocked insufficient pump output air in product flow and return too great NTC connected the wrong way round F 24 Safety switch off Temperature rise too fast Pump blocked insufficient pump output air in product system pressure too low non return valve blocked incorrectly installed F 25 Safety switch off Flue gas temperature too Break in plug connection for optional flue gas safety temperature limiter high STB break in cable harness F 26 Fault Gas valve without function Gas valve stepper motor not connected multiple plug on the PCB not plugged in correctly interruption in cable harness gas valve stepper motor defective electronics defective F 27 Safety switch off Flame simulation Moisture on the electronics electronics flame monitor defective gas solenoid valve leaking F 28 Failure during start up Ignition unsuccess Gas meter defective or gas pressure monitor has triggered air in gas ful gas flow pressure too low thermal isolator dev
97. paring the repair work ceeeseeeeeeeeeneeeeeees 29 9 6 Replacing defective components 29 9 7 Completing repair Work ecceeceeeeeeeeneeeeeeeeees 33 10 Inspection and maintenance 2 0 e 33 10 1 Function Men k i 34 10 2 Electronics self test 34 10 3 Removing the compact thermal module 34 10 4 Cleaning the heat exchanger 35 10 5 Checking the burner ee eee eeee cette eeeeneeenteeeeee 35 10 6 Cleaning the condensate trap 35 10 7 Cleaning the filter in the cold water inlet 35 10 8 Installing the compact thermal module 36 10 9 Draining the Product eee eeeeesseeeereeeeneeeeeaes 36 10 10 Checking the pre charge pressure for the internal expansion vessel n se 36 10 11 Completing inspection and maintenance work 36 11 DecomMmiSSIoning sssssessennrnnnrrnnrrnnrrennrnnnennne 36 11 1 Temporarily decommissioning the product 36 11 2 Decommissioning the product s es 37 12 Recycling and dispoSal s csssesseeeeeneeees 37 13 Customer SEPVICE cceeeceeeeeeeeeeeeeeeeeneeeeeneeneeees 37 Appe diX 3 csvissc nsec aaar rannani ea anaa a ranana e cus usana rae danin iua adaa aaea 38 A Installer level Overview ccseesseeeseeneeee 38 B Overview of diagnostics Codes cceeeeee 40 c Status codes Overview cscceeeeeeeneeeeees 44 D Overview of fault codes ssssssesesensnnrnnnrrnnnens 46 Installation and mainte
98. poisoning caused by insufficient supply of combustion air Conditions Open flued operation gt Ensure that the air supply to the product s installation room is permanently unobstruc ted and sufficient in accordance with the relevant ventilation requirements 1 3 9 Risk of death due to lack of safety devices The schematic drawings included in this doc ument do not show all safety devices re quired for correct installation gt Install the necessary safety devices in the system gt Observe the applicable national and inter national laws standards and guidelines 1 3 10 Risk of death from electric shock There is a risk of death from electric shock if you touch live components Before commencing work on the product gt Disconnect the product from the power supply by switching off all power supplies electrical partition with a contact opening of at least 3 mm e g fuse or line protec tion switch gt Secure against being switched back on again gt Wait for at least 3 minutes until the con densers have discharged gt Check that there is no voltage 1 3 11 Risk of being burned or scalded by hot components gt Only carry out work on these components once they have cooled down 1 3 12 Risk of death from escaping flue gas If you operate the product with an empty con densate trap flue gas may escape into the room air gt In order to operate the product ensure that the condens
99. protective film from all parts of the product Unpacking the product 4 2 Checking the scope of delivery gt Check that the scope of delivery is complete and intact 4 2 1 Scope of delivery Applicability Product with heating mode only Vak 3 3 Make absolutely sure that the product is compat ible with the gas group at the installation site Serial number The serial number can be found on a plastic label behind the front flap and on the identification plate Note 3 4 CE label CE The serial number can also be shown on the display of the product gt Operating instructions The CE label shows that the products comply with the basic requirements of the applicable directives as stated on the identification plate The declaration of conformity can be viewed at the manufac turer s site 10 Wie Description 1 Heat generator 1 Installation kit containing the following 1 Product retainer 1 Expansion relief valve connector 1 Gas connection pipe 2 Heating flow return connection pipe 3 Service valve 3 Bag with small parts 1 Lower cover 1 Installation template 1 Condensate drain hose 1 Enclosed documentation 4 2 2 Scope of delivery Applicability Product with integrated hot water generation ee Description 1 Heat generator 1 Installation kit containing the following 1 Product retainer Installation and maint
100. r and or limiter in the product Diverter valve defective Secondary heat exchanger blocked Pump faulty F 83 Fault Flow and or return temperature When the burner starts the temperature change registered at the flow sensor temperature change and or return temperature sensor is non existent or too small Insufficient water in product Flow or return temperature sensor not in correct position at pipe F 84 Fault Flow return temperature sensor tem Flow and return temperature sensors returning implausible values perature difference implausible Flow and return temperature sensors have been inverted Flow and return temperature sensors have not been correctly in stalled F 85 Fault Flow and return temperature sensors The flow and or return temperature sensors have been installed on the incorrectly installed same pipe incorrect pipe F 90 Communication with actoSTOR module Check cable harness from product to actoSTOR module PEBus interrupted If the product is to be operated without an actoSTOR module set D 092 0 F 91 Sensor actuator fault on actoSTOR module F 92 Coding resistance fault The coding resistance on the PCB does not match the entered gas group Check the resistance repeat the gas family check and enter the correct gas group F 93 Poor combustion quality Combustion regulation has detected poor combustion quality Incorrect gas restrictor has been installed for the gas family another gas family is present Recirculati
101. rcuit gt Check the appearance of the heating water gt If you ascertain that it contains sedimentary materials you must desludge the system gt Use a magnetic rod to check whether it contains mag netite iron oxide gt If you ascertain that it contains magnetite clean the sys tem and apply suitable corrosion protection measures or fit a magnet filter gt Check the pH value of the removed water at 25 C gt If the value is below 8 2 or above 10 0 clean the system and treat the heating water gt Ensure that oxygen cannot get into the heating water gt Page 26 Checking the filling and supplementary water gt Before filling the system measure the hardness of the filling and supplementary water Treating the filling and supplementary water gt Observe all applicable national regulations and technical standards when treating the filling and supplementary water Provided the national regulations and technical standards do not stipulate more stringent requirements the following applies You must treat the heating water in the following cases Ifthe entire filling and supplementary water quantity dur ing the operating life of the system exceeds three times the nominal volume of the heating installation or If the guideline values listed in the following table are not met or Ifthe pH value of the heating water is less than 8 2 or more than 10 0 0020209591_00 ecoTEC plus Installation a
102. responded e g con tact thermostat or condensate pump 5 40 Comfort protection mode is active Product i running with limited heating comfort S 41 Water pressure gt 2 8 bar S 42 Flue non return flap return signal blocks burner operation only in connection with VR 40 accessories or condensate pump faulty heat requirement is blocked S 46 Comfort protection mode flame loss at min imum load S 53 Product is within the waiting period of the modulation block operation block function as a result of low water pressure flow return spread too large S 54 Product is within the waiting period of the operation blocking function as a result of low water pressure temperature gradient S 57 Waiting period comfort safety mode S 58 Modulation limitation due to noise wind S 61 Gas family check unsuccessful The coding resistance on the PCB does not match the entered gas group see also F 92 S 62 Gas family check unsuccessful CO COz val ues at limit Check combustion S 63 Gas family check unsuccessful Combustion quality outside permissible range see F 93 Check combustion S 76 System pressure too low Top up water S 96 Return sensor test running heating demands are blocked 0020209591_00 ecoTEC plus Installation and maintenance instructions 45 Status code 97 Meaning Water pressure sensor test running heating demands are blocked S 98 Flow return sensor test running heating de mands are
103. ric shock Warning Risk of minor personal injury Caution Risk of material or environmental damage Pee gt 1 2 There is a risk of injury or death to the user or others or of damage to the product and other property in the event of improper use or use for which it is not intended Intended use The product is intended as a heat generator for closed heating installations and for hot water generation The products referred to in these instructions must only be installed and operated in con junction with the flue pipe accessories listed in other applicable documents Exceptions For C63 and B23P installation types follow the specifications in these in structions Intended use includes the following observance of accompanying operating installation and servicing instructions for the product and any other system compon ents installing and fitting the product in accord ance with the product and system approval compliance with all inspection and main tenance conditions listed in the instruc tions Any other use that is not specified in these instructions or use beyond that specified in this document shall be considered improper use Any direct commercial or industrial use is also deemed to be improper Caution Improper use of any kind is prohibited 1 3 1 3 1 Risk caused by inadequate qualifications General safety information Assembly and disassembly installation start up mai
104. ring lifting If required get somebody to assist you in this 3 Transporting the box from the delivery point to the installation site ground floor It is recommended that two people lift the unit together Use safe lifting techniques keep your back straight and bend your legs at the knee 4 4 Dimensions 720 624 20 Flue pipe wall duct Product holder Heating flow 22 x 1 5 diameter Hot water connection 15 x 1 5 diameter Gas connection 15 x 1 5 diameter Cold water connection 15 x 1 5 diameter 11 Heating return 22 x 1 5 diameter R1 tundish condensate trap connection Flue pipe connection Condensate discharge connection 19 mm diameter Condensate trap 11 12 Drain line heating ex ee pansion relief valve connection 15 mm dia meter Only products with integrated hot water generation Only products with heating mode only Consult the installation template that is supplied to find the dimension A Installation depth dimension B 612 VU GB 126 5 5 A ecoTEC plus 338 mm 615 VU GB 156 5 5 A ecoTEC plus 338 mm 618 VU GB 186 5 5 A ecoTEC plus 338 mm 624 VU GB 246 5 5 A ecoTEC plus 338 mm 630 VU GB 306 5 5 A ecoTEC plus 372 mm 637 VU GB 376 5 5 A ecoTEC plus 406 mm 825 VU
105. rn the connection piece clockwise until it clicks into position 5 8 2 3 Installing the connection piece with offset for the air flue pipe 60 100 mm diameter 1 Remove the connection piece for the air flue pipe gt Page 16 Installation and maintenance instructions ecoTEC plus 0020209591_00 165 mm 2 Insert the alternative connection piece with offset to wards the front 3 Use two screws 1 to secure the connection piece to the product 5 9 Electrical installation The electrical installation must only be carried out by a quali fied electrician Danger Risk of death from electric shock Mains connection terminals L and N remain live even if the on off switch is turned off gt Switch off the power supply gt Secure the power supply against being switched on again 5 9 1 Opening the electronics box gt Open the electronics box as shown in the illustration 5 9 2 Carrying out the wiring Caution rect installation Mains voltage at incorrect terminals and plug terminals may destroy the electronics gt Do not connect any mains voltage to the eBUS terminals 0020209591_00 ecoTEC plus Installation and maintenance instructions Risk of material damage caused by incor 1 2 3 gt Only connect the mains connection cable to the terminals marked for the purpose Route the supply lines of the components to be connec
106. s Tel 0870 8700362 8 Install the front casing 8 Adapting the unit to the heating installation To reset the most important system parameters use the Appliance config menu point Menu gt Installer level Appliance config Or manually relaunch the installation assistant Menu gt Installer level gt Start inst assistant You can find setting options in the Diagnostics menu Menu gt Installer level Diagnostics menu Overview of diagnostics codes gt Page 40 8 1 Burner anti cycling time To prevent frequent switching on and off of the burner and thus prevent energy losses an electronic restart lockout is activated for a specific period each time the burner is switched off The burner anti cycling time is only active for the heating mode Hot water handling during a burner anti cycling time does not affect the time function element default setting 20 mins 8 1 1 1 Navigate to Menu gt Installer level gt Diagnostics menu gt D 002 Max anti cycl time Heating and con firm by pressing L 2 Set the burner anti cycling time and confirm by pressing O Setting the burner anti cycling time Installation and maintenance instructions ecoTEC plus 0020209591_00 Triow Set maximum burner anti cycling time min tar get 1 5 10 15 20 25 30 PC 30 2 0 4 0 85 12 5 16 5 20 5 25 0 35 2 0 4 0 7 5 11 0
107. spaces The oper ator can view the telephone number 7 3 8 Ending the installation assistant gt Once you have run through the installation assistant suc cessfully confirm by pressing L lt The installation assistant will close and will not launch again when the product is next switched on 7 4 Restarting the installation assistants Menu gt Installer level gt Start inst assistant You can restart the installation assistant at any time by call ing it up in the menu 7 5 Menu gt Installer level Test programs Test programmes As well as the installation assistants you can also call up the following test programmes for start up service and troubleshooting Check programs Function menu Electronics self test Performing a gas family check Danger Risk of poisoning Inadequate combustion quality CO indic ated by F 92 93 leads to an increased risk of poisoning gt Make sure that the fault is completely eliminated before starting up the product for continuous operation Menu gt Installer level Test programs Gas family check The gas family check checks the product setting with regard to combustion quality Note If additional condensing units are connected to the same flue gas pipe in the heating installation en sure that none of these condensing units are in operation or start operating throughout the entire test programme so that the test result is not dis torted
108. structions set boiler to operate at minimum rate to minimum load condition Allow sufficient time for combustion to stabilise NOTE If manufacturer s instructions do not specify how to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas sampling point Allow readings to stabilise before recording NOTE If no flue gas sampling point is present and the correct procedure is not specified in the manual consult boiler manufacturer for guidance TURN OFF APPLIANCE AND CALL MANUFACTURER S TECHNICAL HELPLINE FOR ADVICE CO less than THE APPLIANCE MUST NOT BE 350ppm and COMMISSIONED UNTIL PROBLEMS ARE CO CO ratio IDENTIFIED AND RESOLVED IF less than 0 004 COMMISSIONING CANNOT BE FULLY COMPLETED THE APPLIANCE MUST BE DISCONNECTED FROM THE GAS SUPPLY IN ACCORDANCE WITH THE GSIUR NOTE Check and record CO and combustion ratio at both max and min rate before contacting the manufacturer BOILER IS OPERATING SATISFACTORILY no further actions required Ensure test points are capped boiler case is correctly replaced and all other commissioning procedures are completed Complete Benchmark Checklist recording CO and combustion ratio readings as required 0020209591_00 ecoTEC plus Installation and maintenance instructions 61 Opening of the flue pipe
109. system Fernox Antifreeze Alphi 11 Sentinel X 500 gt If you have used the above mentioned additives inform the operator about the measures required gt Inform the operator about the measures required for frost protection 21 7 9 To ensure that the heating installation operates smoothly the indicator on the pressure gauge must point to the upper half of the grey area or to the middle of the bar graph display in the display marked by the dashed limit values when the heating installation is cold This corresponds to a filling pres sure of between 0 1 MPa and 0 2 MPa 1 0 bar and 2 0 bar If the heating installation extends over several storeys higher filling pressures may be required to avoid air entering the heating installation If the filling pressure falls below 0 08 MPa 0 8 bar the product indicates low pressure by displaying a flashing pressure value If the filling pressure falls below 0 05 MPa 0 5 bar the product switches off The display shows F 22 Preventing low water pressure gt Top up the heating water to start the product up again The pressure value flashes in the display until a pressure of 0 11 MPa 1 1 bar or higher has been reached 7 10 1 Check whether all thermostatic radiator valves and both service valves on the product are open 2 Connect a hose to the drain valve that is located at the lowest position in the heating system 3 Open the radiator valves and the drain val
110. t ing systems BS EN 806 Parts 1 5 BS 8558 Guide to the design installation testing and maintenance of services sup plying water for domestic use within build ings and their curtilages BS 6880 Code of practice for low temper ature heating systems with outputs above 45 kW Part 1 2 and 3 BS 6891 Installation of low pressure gas pipe work of up to 35mm in domestic premises BS 4814 Specification for Expansion vessels using an internal diaphragm for sealed hot water and heating systems BS 7074 Application selection and install ation of expansion vessels and ancillary equipment for sealed water systems Part 1 and 2 BS 7593 Code of practice for treatment of water in domestic hot water central heating systems BS 12831 Heating systems in buildings Method for calculating design heat load BS EN 13831 Closed expansion vessels with built in diaphragm EN 14336 Heating systems in buildings Installation and commissioning of water based heating systems BS 5440 1 Installation of flues and vent ilation for gas appliances of rated input not exceeding 70kW 0020209591_00 ecoTEC plus Installation and maintenance instructions BS 5440 2 Flueing and ventilation for gas appliances of rated input not exceeding 70kW 1st 2nd and 3rd family gases BS 5449 Forced circulation hot water sys tems up to 45kW BS EN 6798 Installation amp maintenance of gas fired hot water boilers of rated input not e
111. t GB Great GB Great ignation in accordance Britain IE Britain IE Britain IE Britain IE Britain IE Britain IE with ISO 3166 Ireland Ireland Ireland Ireland Ireland Ireland Approved unit categories lon Ilou3p Ilou3p Iou3p Ioy3p Gas connection boiler 15mm 15 mm 15 mm 15 mm 15 mm 15 mm side Flow return heating con 22 mm 22 mm 22 mm 22 mm 22 mm 22 mm nections boiler side Hot and cold water con nection boiler side Expansion relief valve 15 mm 15 mm 15 mm 15 mm 15 mm 15 mm connector min Air flue gas connection 60 100 mm 60 100 mm 60 100 mm 60 100 mm 60 100 mm 60 100 mm Condensate drain pipe 19 mm 19 mm 19 mm 19 mm 19 mm 19 mm work min G20 natural gas flow 2 0 kPa 2 0 kPa 2 0 kPa 2 0 kPa 2 0 kPa 2 0 kPa pressure 20 0 mbar 20 0 mbar 20 0 mbar 20 0 mbar 20 0 mbar 20 0 mbar G31 propane gas flow 3 7 kPa 3 7 kPa 3 7 kPa 3 7 kPa pressure 37 0 mbar 37 0 mbar 37 0 mbar 37 0 mbar Gas flow rate at 15 C 1 3 m h 1 7 m h 2 0 m h 2 6 m h 3 7 m3 h 4 1 m h 0020209591_00 ecoTEC plus Installation and maintenance instructions 63 G20 64 Installation and maintenance instructions ecoTEC plus 0020209591_00 612 VU GB 615 VU GB 618 VU GB 624 VU GB 630 VU GB 637 VU GB 126 5 5 A 156 5 5 A 186 5 5 A 246 5 5 A 306 5 5 A 376 5 5 A ecoTEC plus ecoTEC plus ecoTEC plus
112. t 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 according to the manufacturer s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty This does not affect the customer s statutory rights Customer name Telephone number Address Boiler make and model Boiler serial number Commissioned by PRINT NAME Gas Safe register number Company name Telephone number Company address Commissioning date To be completed by the customer on receipt of a Building Regulations Compliance Certificate Building Regulations Notification Number if applicable CONTROLS tick the appropriate boxes Room thermostat and programmer timer Programmable room thermostat Time and temperature control to heating i Load weather compensation Optimum start control Time and temperature control to hot water Cylinder thermostat and programmer timer Combination Boiler Heating zone valves Fitted Not required Hot water zone valves Fitted Not required Thermostatic radiator valves Fitted Not required Automatic bypass to system Fitted Not required Boiler interlock Provided
113. t the product as described using the permitted fixing material provided on site Installation and maintenance instructions ecoTEC plus 0020209591_00 4 9 Removing the front casing ie gt Remove the front casing as shown in the illustration 4 10 Removing the side section rae 0020209591_00 ecoTEC plus Installation and maintenance instructions Caution Risk of material damage caused by mech anical deformation Removing both side sections may cause mechanical distortion in the product which may cause damage to the piping for ex ample and potentially result in leaks gt Always remove only one side section never both side sections at the same time gt Remove the side section as shown in the illustration 5 Installation Danger Risk of scalding and or risk of material damage due to incorrect installation lead ing to escaping water Stresses in supply lines can cause leaks gt Install the supply lines without tension Caution Risk of material damage due to the gas leak tightness test At a test pressure of gt 11 kPa 110 mbar gas leak tightness tests may cause damage to the gas valve gt If during gas leak tightness tests you also place the gas lines and the gas valve in the product under pressure use a max test pressure of 11 kPa 110 mbar gt If you cannot limit the test pressure to 11 kPa 110 mbar close any gas isolator
114. t up the product gt If this is the case inform Customer Service gt Screw the covering cap back in gt Install the front casing 7 16 Before you hand the product over to the operator Checking function and leak tightness gt Check the gas line the flue gas installation the heating installation and the hot water pipes for leaks gt Check that the air flue pipe and condensate drain pipe work have been installed correctly gt Check that the front casing has been installed correctly 7 16 1 Checking the heating mode 1 Make sure that there is a heat requirement 2 Call up the Live Monitor lt If the product is working correctly the display shows S 04 7 16 2 Checking the hot water generation Applicability Product with integrated hot water generation 1 Open a hot water valve all the way 2 Call up the Live Monitor lt If the hot water generation is working correctly S 14 appears in the display 7 16 3 Checking the hot water generation Applicability Product with heating mode only 1 Ensure that the cylinder charging mode is requesting heat 2 Call up the Live Monitor lt If the cylinder is charged correctly the display shows S 24 3 Ifyou have connected a controller which can be used to set the hot water temperature set the hot water temper ature on the boiler to the maximum possible temperat ure 4 Adjust the target temperature for the connected do mestic hot water cylind
115. tants 20 Test Programmes innnan 20 7 6 Performing a gas family check scce 20 7 7 Using check programmes ceecee 20 7 8 Checking and treating the heating water filling and supplementary water ecceeeeeeesteeeneees 21 7 9 Preventing low water pressure ec eeeeeeeeeeee 22 7 10 Flushing the heating installation for the first TIME COND dieat 22 7 11 Filling the heating installation 0 ee 22 7 12 Purging the heating installation 0 eee 23 7 13 Filling and purging the hot water system 23 7 14 Filling the condensate trap eeeseeeeseeeeteeeeees 23 7 15 Gas ratio Setting eee eee nenene 23 7 16 Checking function and leak tightness 26 7 17 Thoroughly flushing the heating installation CHOP aa iai a 26 8 Adapting the unit to the heating installation ssssssnsenneeeneenenrennrnnnnnnnnnnnnnennnnnnennn 26 8 1 Burner anti cycling time ccceeeeeseeeeeeeees 26 8 2 Setting the maintenance interval eee 27 8 3 Setting the pump output 27 8 4 Setting the bypass valve 28 8 5 Handing the product over to the operator 28 9 Troubleshooting cecceeseceeeeeseeeeeseeeseeeeeseees 29 9 1 Checking Service MESSAGES cee eeeeeeeeeeeeeeeeee 29 9 2 Rectifying faults a nn 29 9 3 Calling up and clearing the fault memory 29 9 4 Resetting parameters to factory settings 29 9 5 Pre
116. ted through the cable duct provided on the underside of the product on the left Use strain reliefs Shorten the supply lines as necessary E RES Sy Ee S 30 mm max re 4 o To prevent short circuits if a strand accidentally comes loose only strip the outer sheathing of flexible lines to a maximum of 30 mm Ensure the inner conductor insulation is not damaged when stripping the outer sheathing Only strip inner conductors just enough to establish good sound connections To avoid short circuits resulting from loose individual wires fit conductor end sleeves on the stripped ends of the conductors Screw the respective plug to the supply line Check whether all conductors are sitting mechanically securely in the terminals of the plug Remedy this if necessary 10 Plug the plug into the associated PCB slot see the connection diagram in the appendix 5 9 3 Establishing the power supply Caution Risk of material damage due to high con nected voltage At mains voltages greater than 253 V elec tronic components may be damaged gt Make sure that the rated voltage of the mains is 230 V Make sure that the nominal mains voltage is 230 V Provide one common electricity supply for the boiler and for the corresponding controller Power supply Single phase 230 V 50 Hz Fuse protection lt 3 A Open the electronics box gt Page 17 Connect the product using a fix
117. teeeeeeeeteees 35 Combustion airia aad ei aiaa 6 Comfort MOU eG ci s ssecetieecicbeetegeceteescs eevecgeetenecicnvce etene 19 Comfort protection MOdE eee eeececceeesneeceneeeneeeeeneeeeneees 29 Compact thermal module 00 ee eeesee secre eeeeeeeeseeteeeeeneeee 6 Compact thermal module installing ec eeeeeeeeeereees 36 Compact thermal module removing secere 34 Completing inspection work ce eeeceeeeeeerteeeeeeeeneeeeeeees 36 Completing maintenance Work ceeeeeeseeeeteeeenteeeeneees 36 Completing repair Work occ eeeseseseeeseeeceneeeneeeeenaeeeeeaees 33 Component test naisina eesiiiedioe Sa teestice donne ees 34 Condensate drain pipework cceecceeseecerteeenteeeeseeeeneees 15 Condensate Siphon ccccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeees 23 35 Condensate trap ccccccceecesececeeeeneeeeeeeseaeeeeeeseaeeeeess 23 35 Connecting Controller cccceceecesecceeeeeeeeceeeeeeeeeeeeeeeaees 18 Connection diIMENSIONS ee eee eeeeeenteeceneeeeneeeeenaeeeeeaees 11 Contactidetallss sete cceidsz headeec stattias Middec shia eh 20 Controller CONNECTING cecccceeeesecceeeeeeeeeeeeeeeeeeeeeeeaees 18 COMTOSION iinei a i a a a hiee tines 6 Corrugated gas Pipe eeceeeeeecesneeeeeeeeesneeeeaeeteeneeeseeees 6 D DECOMMISSIONING ov ec0 22 36 c tenesaeiescctdeeecenessvieeseieedeceeesceneesteeee 37 Decommissioning temporarily aeee 36 Diagnostics codes cal
118. tem perature is not at Heating off and the heat requirement is enabled via an external controller 3 Eco intermittently operating pump Internal pump is switched on every 25 minutes for 5 minutes once the overrun time has elapsed D 019 Operating mode of 2 stage pump Not relevant Not ad justable D 020 Max setting for cylinder target value Adjustment range 50 70 C actoSTOR 65 C 65 C D 022 Hot water requirement via C1 C2 On Off Not ad impeller or APC justable D 023 Summer winter mode heating off on Heating on heating off summer mode Not ad justable D 025 Hot water generation enabled by On Off Not ad eBUS controller justable 0020209591_00 ecoTEC plus Installation and maintenance instructions 41 Code Parameter Values or explanations perau Own seting setting D 026 Auxiliary relay control 1 Circulation pump 2 External 2 External pump pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active D 027 Switching of relay 1 on the VR 40 2 1 Circulation pump 2 External in 7 multi functional module 2 External pump pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8
119. ternal pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Accessory relay 1 1 10 1 Circulation pump 2 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Accessory relay 2 1 10 1 Circulation pump 2 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active Heating partial load kW Partial load only full load only auto Auto Contact data Phone 0 9 Auto num ber Default setting On Off Installer level Diagnostics menu gt D XXX D XXX Current value Installer level gt Start ins assistant gt Language Deutsch English Frangais Italiano Dansk English Nederlands Castellano Turkce Magyar Pyccxun Ykpa HcbKa Svenska Norsk Pol ski e tina Hrvatski Sloven ina Romana Sloven ina Portugu s Srpski Filling mode 3 way valve is in mid 0 2 0 Normal operating mode position 1 Mid positi
120. the air flue pipe for leak tightness and to ensure that it is fastened correctly Make sure 1 that it is not blocked or damaged and has been installed in accordance with the relevant Installa x X tion Manual 2 Check the general condition of the product Remove dirt from the product and from the vacuum x x chamber Visually inspect the general condition of the Thermoblock In doing so pay particular attention 3 to signs of corrosion rust and other defects If you notice any damage carry out maintenance x X work 4 Check the gas flow pressure at maximum heat input If the gas flow pressure is not within the x x correct range carry out maintenance work 5 Check the COz content the air ratio of the product and if necessary adjust it Keep a record of x x this 6 Disconnect the product from the power mains Check that the electrical plug connections and x x other connections are seated correctly and correct these if necessary 7 Close the gas isolator cock and the service valves X Drain the product on the water side observe the pressure gauge Check the pre charge pres 8 sure of the expansion vessel and top up the vessel if necessary approx 0 03 MPa 0 3 bar un X der the system filling pressure 9 Remove the compact thermal module X Check the insulating mats in the combustion area If you notice any damage replace the insu 10 lating mats Replace the burner flange seal each time it is opened and
121. the product ceceeseeeeeenereeees 11 DIMENSIONS oiie nt a 11 Minimum clearances 12 Clearance from combustible components 12 Using the installation template eee 12 Wall mounting the product sesse 12 Removing the front CASING eeeeeesteeeeteeeeees 13 Removing the side section ccecce 13 Installation ceecsseeeeeeeeeeeeeeeesseeenseeeeeeeneeees 13 Installation requirement cccceeseeeeeeeeees 14 Installing the gas connection 0ceeeee 14 Installing the hot and cold water connection 14 Connecting the domestic hot water cylinder 15 Connecting the heating flow and heating ELAO a a a E heeiuaeness 15 Connecting the condensate drain pipework 15 Installing the discharge pipe on the expansion reli6f ValVG vs cccsid een ait terete 16 Flue gas installation 0 0 cee eeeeeeseeeeeeeeeeeeeeeeees 16 Electrical installation eee eeeceeeeseeeeeeeeeneeeeeees 17 Operation sasia enia eaa a aaa es 18 Operating concept sssssseessseennesrrnneeserr rererere 18 Calling up the installer level eee eeeeeeeeeees 18 Live Monitor status codes 00 0 eee eeeseeeereeeeees 19 Setting the hot water temperature n 19 StartUp e an arate aa a e aana a aaa iaeiaiai 19 Carrying out the initial start up eee 19 Switching the product on and Off eee 19 Running the installation assistants 00 19 Restarting the installation assis
122. this may result in ignition problems gt Ensure that the liquid gas tank has been purged properly before installing the product gt If required contact the filler or the liquid gas supplier 5 1 3 Using the correct type of liquid gas Using the incorrect type of liquid gas may cause fault shut downs in the product Ignition and combustion noise may occur in the product gt Only use the gases listed on the identification plate 5 1 4 Required preliminary work 1 Install a stop cock in the gas line 2 Make sure that the existing gas meter is capable of passing the rate of gas supply required 3 Check that the volumetric capacity of the expansion vessel is sufficient for the system volume Conditions The volume of the installed expansion vessel is insufficient gt Install an additional expansion vessel connected as close to the product as possible in the heating return Conditions External expansion vessel installed gt Install a non return valve in the product outlet heating flow or decommission the internal expansion vessel in order to prevent the warm start function from being increasingly activated due to backflow 4 Install a tundish with siphon for the condensate dis charge and the exhaust pipe on the expansion relief valve Lay as short a drain line as possible at a down ward gradient away from the tundish 5 Insulate bare pipes exposed to environmental influ ences to protect them from frost usin
123. til the Number next inspection maintenance Heat de of per work is due for an average mand a sons operating time of one year dependent upon the system type 1 2 1500 h 10 0 kW 2 3 1600 h 2 3 1800 h 15 0 kW 3 4 1900 h 3 4 2600 h 20 0 kW 4 5 2700 h 3 4 2800 h 25 0 kW 4 6 2900 h 3 4 3000 h gt 27 0 kW 4 6 3000 h 8 3 Setting the pump output 1 Navigate to Menu gt Installer level gt Diagnostics menu gt D 014 Pump speed target value and confirm by pressing O 2 Set the required pump output Conditions Low loss header installed gt Switch off the speed regulation and set the pump output to a fixed value 8 3 1 Remaining feed head of the pump 8 3 1 1 Pump characteristic line for VU 126 VU 156 VU 186 w 400 oa a a a u NL a A 2 309 3 W 100 PWM z 7 85 2 200 70 o 60 i a Z G 53 f AG g 100 NZ o O 200 400 600 800 1000 1200 1400 1600 1800 Flow rate I hr 8 3 1 2 Pump characteristic line for VU 246 VUW 256 400 350 100 PWM v 80 8 300 Tok 5 250 lt 60 2 200 53 150 100 Me 50 SS o o 200 400 600 800 1000 1200 1400 Flow rate l hr Guideline value for burner operating hours until the Number next inspection maintenance Heat de Sand of per
124. tor cock Make sure that there are no leaks Check that the sealing ring in the air intake pipe is posi tioned correctly in the seal seat Reconnect the air intake pipe to the intake nozzle Installation and maintenance instructions ecoTEC plus 0020209591_00 11 2 Decommissioning the product gt Press the on off button lt The display goes out Disconnect the product from the power mains Close the gas isolator cock Close the cold water stop valve Drain the product gt Page 36 Yv v Vv 12 Recycling and disposal Disposing of the packaging gt Dispose of the packaging correctly gt Observe all relevant regulations 13 Customer service To ensure regular servicing it is strongly recommended that arrangements are made for a Maintenance Agreement Please contact Vaillant Service Solutions for further details Vaillant Service Solutions 03 30 100 31 43 0020209591_00 ecoTEC plus Installation and maintenance instructions 37 Appendix A Installer level Overview Setting level Values Default Unit Increment select explanation i Min Max setting Installer level gt Enter code 00 99 1 competent person code 17 Installer level gt List of faults gt F XX F XX Current value Installer level gt Test programs gt Gas type check Current value LPG natural gas Installer level Test programs gt Check programs gt
125. ture pipe 1 and the fan flange 13 Refit the components in the reverse order New seals 4 and 5 must be used for this Pay attention to the order in which the three screws between the fan and the mixture pipe are screwed in as per the numbering 1 2 and 3 14 Screw the flexible gas line to the gas valve Use new seals for this 15 When tightening the cap nut on the gas valve use an open ended spanner to counterhold the opposite side of the gas valve 16 Perform a gas family check after installing the new fan gt Page 20 9 6 3 Replacing the gas valve 30 Note To replace the gas valve you will need a Torx T20 To replace the gas valve directly from the front you will need an offset screwdriver or a Torx T20 socket If you do not have access to an off set screwdriver or the like you must first remove Remove the entire unit comprising the fan Venturi and gas valve from the product Unscrew the gas valve fixing screw 2 from the re tainer the entire unit comprising the fan with gas valve Remove the gas valve from the retainer before you can remove the gas valve from the re Remove the Venturi 3 including the gas connection tainer pipe 1 from the fan by turning the bayonet fitting on the Venturi anti clockwise as far as it goes and remov ing it straight from the fan Installation and maintenance instructions ecoTEC plus 0020209591_00 Remove th
126. us codes Overview Status code Meaning Heating mode S 00 Heating No heat demand S 01 Heating mode Fan start up 02 Heating mode Pump pre run 03 Heating mode Ignition 04 Heating mode Burner on 05 Heating mode Pump fan overrun S 06 Heating mode Fan overrun S 07 Heating mode Pump overrun S 08 Heating mode Remaining anti cycling time Hot water handling mode products with integrated hot water generation S 10 Hot water requirement via flow sensor S 11 DHW mode Fan start up 13 DHW mode Ignition 44 Installation and maintenance instructions ecoTEC plus 0020209591_00 Status code Meaning S 14 DHW mode Burner on S 15 DHW mode Pump fan overrun S 16 DHW mode Fan overrun S 17 DHW mode Pump overrun Comfort mode warm start or hot water handling mode with actoSTOR or cylinder charging mode S 20 DHW demand S 21 DHW mode Fan start up S 22 DHW mode Pump pre run S 23 DHW mode Ignition S 24 DHW mode Burner on S 25 DHW mode Pump fan overrun S 26 DHW mode Fan overrun S 27 DHW mode Pump overrun S 28 Hot water burner anti cycling time Others S 30 Room thermostat RT is blocking heating mode S 314 Summer mode active or no heat requirement i from eBUS controller 32 Waiting period because of fan speed devi ation 34 Frost protection mode active 39 Burner off contact has
127. ves so that the water can drain quickly Start at the next point in the system and open the purging valves on the radiators so that the contaminated water can completely drain 4 Close the drain cocks Refill the heating system with water 6 Check that the expansion relief valve of the heating system is functioning correctly by turning the handle on the valve 7 Check the pressure in the heating system and top up with water if necessary 8 Close the filling valve and the cold water valve Flushing the heating installation for the first time cold Note The complete heating system must be flushed at least twice Once with cold water and once with hot water in accordance with the following instructions gi 7 11 Filling the heating installation 1 Flush the heating installation through 2 Undo the cap of the automatic air vent 1 by one to two rotations and leave it open as the product purges itself via the automatic air vent even in continuous mode 22 3 Select the check programme P 06 lt The diverter valve moves to the mid position the pumps do not run and the product does not switch to heating mode 4 Observe the information on treating heating water gt Page 21 5 Check all connections and the entire system for leaks Conditions Applies to Products with integrated hot water generation gt Open all radiator valves thermostatic radiator valves of the heating
128. work is due for an average sons operating time of one year dependent upon the system type 1 2 1050 h 5 0 kW 2 3 1150 h 27 8 3 1 3 Pump characteristic line for VU 306 VUW 356 y 400 g LLL T TT RANK Z 100 PWM mol g 300 N 85 SAGE 70 v 200 XK oon MK 53 Z s 5 100 J ene g o O 200 400 600 800 1000 1200 1400 1600 1800 Flow rate I hr 8 3 1 4 Pump characteristic line for VUW 326 w Q o g 39 100 PWM 5 85 200 70 2 60 7 53 Ss 100 y amp vs Z o O 200 400 600 800 1000 1200 1400 1600 1800 Flow rate I hr 400 8 3 1 5 Pump characteristic line for VU 376 VUW 386 w 400 a rT j if 100 PWM 300 AE 85 70 60 200 X 53 2 iy 4 Minimum Z KAY with Auto T 100 a7 v g 0 O 200 400 600 800 1000 1200 1400 1600 1800 Flow rate I hr 8 4 Setting the bypass valve Caution Risk of material damage caused by incor rect setting of the high efficiency pump If the pressure at the bypass valve is in creased by turning it clockwise and the pump output is set to less than 100 the product may not operate correctly gt In this case set the pump output
129. xceeding 70kW net BS 5482 Part 1 Domestic butane and propane gas burning installations Institute of Gas Engineers Publications IGE UP 1B Edition 2 Tightness testing and direct purging of small natural gas installations IGE UP 7 Edition 2 Gas in timber and light steel framed buildings Additionally for gas boilers systems with out puts greater than 7OKW BS 6644 Installation of gas boilers between 60 kW and 2 MW 2nd and 3rd family gases BS 5449 IGE UP 1 Edition 2 Strength testing tightness testing and direct purging of in dustrial and commercial gas installations IGE UP 1A Edition 2 Strength testing tightness testing and direct purging of small low pressure industrial and com mercial natural gas installations IGE UP 10 Installation of gas appliances in industrial and commercial premises Part 1 Flued appliances The installation must comply with the cur rent version of the Clean Air Act S 813 Domestic Gas Installations S 820 Non Domestic Gas Installations Building Control Act 2007 ETCI Regulations for installing electrical systems 2 Notes on the documentation 2 1 Observing other applicable documents gt You must observe all the operating and installation in structions included with the system components 2 2 Storing documents gt Pass these instructions and all other applicable docu ments on to the system operator 2 3 Applic

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