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ecoTEC plus

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1. X51 Display X22 Pump PWM signal Connection 2 x Gas valve 5 Holding magnet 2 T 3 X25 in Z white 10 3 Stepper motor 4 z 9 Mass flow 6 sensor 12 8 TS 17 Pe M Diverter 7 18 55 valve 14 Water pressure 13 3 sensor X2 11 ed blue gt D D 4 Z 12 white 79 Cylinder sensor optional 1 H i W int 16 white fener contact C1 C2 2 red za Flow sensor 3 blue z Return sensor 12 5 X20 13 5 Safety fuse pink 2 gt Coding resistor output range 15 16 4 3 17 X24 3 ED codi i era 7 sad Coding resistor gas group Circulation pump remote control X41 External temperature sensor Flow sensor optional Edge DCF connection connector Earth 1 Earth w blue a BO Contact thermostat burner off E N X100 ho m 12 de N i SS 24 V DC room thermostat gt iad p ISe Bus connection ve pin ml igi x 24 V OS Controller room th digital z 230 V Fa X16 i 29 Auxiliary relay ie grey OLIES Selection by D 026 XI NE blue OE LIES Internal pump N D X18 green mr Vs Ignition Ignition S No function electrode trans RT 2E 230 V AC room thermostat f L l O Orme X1 N 6o Mains connec
2. YY nM MM Or UI A Wy gt DHW mode VU boiler with cylinder or VUW comfort mode warm start S 20 DHW demand S 21 DHW mode fan start up S 22 DHW mode pump running 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 Special cases S 30 Room thermostat RT is blocking heating mode S 31 Summer mode active or no heat requirement from eBUS controller S 32 Waiting period because of fan speed deviation S 34 Frost protection mode active S 39 Burner off contact has triggered e g contact thermo stat or condensate pump S 40 Comfort safety mode is active Boiler running with lim ited heating comfort gt section 13 2 3 S 41 Water pressure gt 2 8 bar S 42 Flue non return flap return signal blocks burner opera tion only in connection with VR40 accessory or con densate pump faulty heat requirement is blocked S 46 Comfort safety mode flame loss at minimum load S 53 Boiler is in waiting period of modulation block operation block function due to water shortage supply return spread too large S 54 Boiler is in waiting period of operation blocking function as a result of water shortage temperature gradient S 57 Waiting period comfort safety mode S 58 Modulation limitation due to noise wind S 61 Gas family check unsuccessful T
3. Installation and maintenance instructions ecoTEC plus 0020116700_03 12 7 Cleaning the condensate siphon gt Remove the lower part 1 of the condensate siphon by turning the bayonet fitting anti clockwise Clean the bottom of the siphon by flushing it out with water Fill the lower section of the siphon with water up to about 10 mm below the upper edge Re fit the lower part of the condensate siphon Flush through all discharge pipe work ensure route and termination are correct and it is unlikely to freeze up in severe weather 12 4 5 Clean the filter in the cold water inlet VUW boilers only There is a filter in the cold water inlet of the boiler which must be cleaned during maintenance work 12 8 Removing the filter from the cold water inlet gt Installation and maintenance instructions ecoTEC plus 0020116700_03 Close the cold water stop valve gt Drain the hot water from the boiler gt Undo the nut 1 gt fig 12 8 of the cold water supply line from the casing of the boiler 12 9 Removing the pipe with the cold water filter Fold the electronics box forwards gt section 8 2 Detach the clamp 1 gt fig 12 9 from the flow sensor Pull off the cold water pipe from the flow sensor Remove the pipe 2 gt fig 12 9 from the boiler Rinse the filter under a jet of water holding against the direction of flow Refit the pipe with the cleaned filter in the rev
4. Fault memory Filling Eofidensate sipRON sees KERR Ge SES SS ERGE ASe ES REG Ne Heating installation Hot water system with filling device ie a xA si Filling deVlE iss Ese EENS SEE SS EO Ee ESE BESK Eo N Ke Gee EE Re gek eiere Filling PresSUF user Se ER Se Eg dek ND Se EG oe ok Ge bee ek eke gek ee Fitting EORLrollEES EE ER a as FROME CASING dsssscscstsarscesscsvenestsessessssevcoess es sossevvteavsesssecsserseastees Side panel es BEd Gee eke Be Gee EE ke Ee ae eke ke Ese Ee eds EERS NG iesse ssri ie Frost protection se ae was Function MOM EE ee Ee ee een Ge De Ge ee G Gas Council NUMDED uu sesse se see se Re Se Re Se Re Se Re Se Re RR 4 Gas family checCK iese sesse se see se ee Se Re Se Re Se Re Se Re ee ee ee Gas flow pressure Gas flow rate avi c es ERA ad Ae PEA EE OE H Heatind mode siese ESE Ee GR Ek ge ESE DEON SE eg ok Gen ER gee gee eek eg 47 Heating partial load se sesse se ee Se ee Se Re Ge Re Ge Re Re 40 Heating water delde AE RE EE 9 Installation and maintenance instructions ecoTEC plus OO20116700 03 l Sid amie ENE EA A os a 19 MT AA RE OE OE ase 75 Installation assistant sesse se se se Se Se Se Ge Ge GR Ge Ge Ge GR GR GR GR RR Installation clearance Installation site Installation template Installer l6VESlisasisssscsssssssessestscsesssassssssstscessssczseesscascensssescasssdtacensits L Setting Appliance variant sesssse
5. gt Use a normal commercial mains connection cable that is compliant with standards gt Route the mains connection cable through the left cable duct gt fig 8 1 pos 4 on the base of the unit Installation and maintenance instructions ecoTEC plus 0020116700_03 8 2 Cable routing of the mains connection cable gt Use the strain reliefs 1 provided gt Shorten the mains connection cable as necessary gt Only strip the outer sheathing of flexible cables for a maximum of 3cm gt Ensure inner conductor insulation is not damaged during stripping of outer sheathing gt Only strip inner conductors sufficient to make good sound connections gt Crimp pin terminals to ensure a secure connection free from loose strands to prevent short circuits gt Connect the provided green ProE plug 2 for the mains connection to the mains connection cable using a screw driver gt Insert the ProE plug into the corresponding PCB slot L N and earth gt fig 8 2 gt Lay the lines correctly gt Secure the cable in the electronics box using the strain reliefs gt Close the electronics box section 8 2 8 4 Make sure that the connection cables are securely fastened to the plug terminals Connecting the controller 8 4 1 Fitting the controller gt Fit the controllers in accordance with the relevant oper ating and installation
6. 12 11 General inspection and maintenance instructions To ensure the faultless operation long term availability of all functions and long working life of your Vaillant boiler and to prevent modifications to the approved series status only genuine Vaillant spare parts must be used when carry ing out inspection maintenance and repair work For an overview of the available original Vaillant spare parts contact the Vaillant sales office on 0870 6060 777 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 rele vant installation instructions The integrity of the flue gas installation and flue seals is in accordance with the relevant flue installation instruc tions enclosed 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 as described in gt section10 11 4 The gas flow rates as described in gt section 10 1 3 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 heating system and dripping taps gt Correct any faults before proceeding 12 1 2 Safety instructions Danger Danger of life and limb by electr
7. 7 1 Scope of delivery of horizontal air flue gas duct Article number 303933 A concentric air flue gas duct with an outer diameter of 100 mm that can be extended depending on the boiler out put range is available You can also get a vertical system For more information refer to the gt installation manual for the air flue gas duct 87 elbows and 45 elbows are also available for greater flexibility during installation 1456 48 po 901 ii 7 2 Scope of delivery of vertical air flue gas duct Article number 0020060570 and 0020065937 Optional 125 mm air flue gas duct A concentric air flue gas duct with an outer diameter of 125 mm is available that can be extended depending on the boiler output range The flues gas spigot 80 125 with 2 measuring apertures Art No 0020147469 will be required You can also get a vertical system For more information refer to the installation manual for the air flue gas duct 1020 7 3 Scope of delivery of horizontal air flue gas duct Article number 303209 7 4 Scope of delivery of vertical air flue gas duct Article number 303200 Installation and maintenance instructions ecoTEC plus 0020116700_03 25 7 2 Flue termination The following details refer to all flue systems a The terminal must be positioned such that the prod ucts of combustion can disperse freely at all ti
8. Warning Combustion gt Start test program P O1 and quality insuffi adjust the CO value with the cient CO value adjusting screw in the venturi and CO CO gt section 12 1 4 ratio are incor gt If the correct CO value cannot rect be set Check the gas restrictor for correctness yellow H gas grey liquid gas and damage gt Repeat gas family check F 93 Gas Combustion gt Damaged or incorrect gas group fault quality outside restrictor yellow H gas grey liquid gas wrong gas group internal pressure measuring point in venturi blocked do not use lubricants on O ring in ven turi recirculation faulty seal gt Resetting the boiler gt Set correct CO value using test program P O1 adjusting screw in venturi gt section 12 1 4 gt Repeat the gas family check 12 2 Results and measures after gas family check Installation and maintenance instructions ecoTEC plus 0020116700_03 12 2 Inspection and maintenance work steps Column 1 Column 2 Inspection Maintenance must be car must be car ried out each ried out at year regular inter Activity Check the air flue gas installation for leaks and for proper fixation and ensure it is not blocked or damaged and is fitted correctly complying with the relevant installation instructions Visually inspect the complete heat engine for its general condition and for signs of corrosion sooting or other forms of damage paying particular
9. 12 4 Self tests in the function menu 12 3 1 Carrying out electronics self tests Menu gt Installer level gt Test programs gt Electronics self test In case service is required you should use the electronic self test to check the PCB in advance 12 4 Carrying out maintenance work 12 4 1 Removing the compact thermal module Danger Risk of being burned or scalded by hot components There is danger of being burned or scalded at the compact thermal module and at all water carrying components gt Only carry out work on these compo nents if they have cooled down The compact thermal module consists of five main compo nents 1 Speed regulated fan 2 Gas valve including support plate 3 Venturi including mass flow sensor and gas supply pipe 4 Burner door 5 Premix burner gt Switch off the boiler using the on off switch Installation and maintenance instructions ecoTEC plus 0020116700_03 y Close the gas isolator cock on the boiler Close the service valves on the boiler Remove the front casing from the boiler gt section 4 7 Fold the electronics box forwards gt section 8 2 y y y gt Unscrew the retaining screw 2 gt fig 12 3 and detach the air intake pipe 1 gt fig 12 3 from the intake stub Caution Risk of damage to the gas pipe The corrugated gas pipe may become dam aged gt Do not suspend the compact thermal module on the
10. 615 VU GB 156 5 5 618 VU GB 186 5 5 837 VUW GB 376 5 5 624 VU GB 246 5 5 is 824 VUW GB 246 5 5 831 VUW GB 316 5 5 630 VU GB 306 5 5 369 637 VU GB 376 5 5 403 4 5 Dimension B for installation depth on VU and VUW boilers 4 6 Wall mounting the boiler 4 7 Removing fitting the front casing Danger Risk of death if the load bearing capacity of the fixing elements used is insuffi cient If the fixing elements or wall do not have sufficient load bearing capacity the boiler can come loose and fall down This may also cause leaks in the gas line which is potentially fatal gt When fitting the boiler ensure that the fixing elements and the wall have a suffi cient load bearing capacity gt Check the quality of the wall 4 5 Wall mounting the boiler gt Mount the hanging bracket 1 on the wall using the wall plugs and screws 2 provided with the unit gt Hang the boiler 3 on the hanging bracket from above using the hanging bracket 18 4 6 Removing the front casing Removing the front casing gt Loosen the screw 1 on the bottom of the boiler using a screwdriver or small spanner gt Push in both retaining clips 2 on the bottom of the boiler so that the front casing is released gt Pull the front casing forwards using the bottom edge gt Lift the front casing upwards from the bracket Fitting the front casing
11. If the flue gas value needs to be adjusted proceed as fol lows The adjusting screw for making the air ratio setting is located beneath a covering cap 1 which is easy to unscrew gt To do this push a small slotted screwdriver through the covering cap at the mark and unscrew it Set the relevant CO value value with removed front casing gt table 12 1 by turning the screw 2 To do this use a small slotted screwdriver or a 2 5mm Allen key Turn to the left higher CO concentration Turn to the right lower CO concentration Natural gas Only perform the adjustment in increments of 1 turn and wait approximately 1 minute after each adjustment until the value stabilises Liquid gas Only perform the adjustment in small increments approximately 1 2 turns and wait approximately 1 minute after each adjustment until the value stabilises Press the Cancel selection button once the settings have been adjusted When the adjusting work is complete screw the covering cap back in again Put the front casing back on gt section 4 7 59 Settings Unit Natural gas H Propane CO after 5 minutes full load mode with Vol 7 8 10 2 boiler front casing fitted CO after 5 minutes full load mode with boiler Vol 7 6 10 0 front casing removed Set for Wobbe index Ws kWh m 15 22 5 CO value with full load ppm lt 250 lt 250 CO CO2 lt 0 0031 lt 0 0026 12 1
12. Insert the ProE plug into the associated PCB slot gt figs 8 3 and 8 4 Lay the lines correctly Secure the cable in the electronics box using the strain reliefs If you connect a 230 V AC time and temperature control to the boiler then remove the bridge at input 24 V RT X100 or X106 if a bridge exists 30 Cylinder charging pump Extractor hood External solenoid valve External fault signal Solar pump not active eBUS remote control not active Legionella protection pump not active Solar valve not active 8 5 1 Connecting the auxiliary relay grey Installation and maintenance instructions ecoTEC plus OO20116700 03 connector on PCB You can connect the additional component to the integrated auxiliary relay using the grey plug on the PCB gt Perform the wiring in the same way as in gt section 8 4 gt To start up the connected components select the com ponents using diagnosis code D 026 at installer level gt section 11 1 8 5 2 Connect VR 40 2 from 7 multi functional module You can connect additional components to the ecoTEC plus using the Vaillant multi functional module 2 in 7 accesso ries gt Fit the components in accordance with the correspond ing operating and installation instructions gt Select diagnostics code D 027 to actuate relay 1 on the multi functional module at installer level 2 section 11 1 gt Select diagnostics code D 028 to actuate relay 2 on
13. Check whether the burner is dirty and clean it if necessary Check the condensate siphon in the boiler clean and fill Flush through all discharge pipe work ensure route and termination are correct and it is unlikely to freeze up in severe weather 16 Install the compact thermal module Caution Use new seals and nuts X For VUW boilers 17 Replace the hot water heat exchanger if the volume of water is insufficient or the output temper X ature is not reached For VUW boilers 18 Remove the impeller sensor clean the filter in the cold water inlet of the sensor and refit the xX sensor 19 Service the domestic hot water cylinder see note below 20 Open the gas isolation valve reconnect the boiler with the power mains and switch on the boiler Open the service valves and fill up the boiler appliance to approximately 0 1 0 2 MPa 1 0 2 0 bar depending on the static height of the system Start the purging program P OO Perform a test operation of the boiler and heating installation including hot water generation and purge again if necessary 23 Perform the gas family check gt section 12 1 5 24 Check visually the ignition and burner performance 25 21 22 If you had problems with the CO CO2 CO COz values in Step 6 before the maintenance check 26 them again now gt table 12 1 If they are outside of the tolerances of gt table 12 1 make an adjustme
14. GB Great Britain and l24 618 VU GB 186 5 5 E Ire GB Great Britain and ll2uap 624 VU GB 246 5 5 E Ire GB Great Britain and ll2uap 630 VU GB 306 5 5 E Ire GB Great Britain and llaH3p 637 VU GB 376 5 5 E Ire GB Great Britain and l2uap 824 VUW GB 246 5 5 E Ire GB Great Britain and ll2uap 831 VUW GB 316 5 5 E Ire GB Great Britain and ll2uap 837 VUW GB 376 5 5 1 2 Type overview E Ire GB Great Britain and lane 2 Safety 2 1 Safety and warning information gt When installing the ecoTEC plus take account of the general safety instructions and the warning notes that appear before all of the actions 2 1 Classification of warnings The warning notes are classified in accordance with the severity of the possible danger using the following warning signs and signal words Warning Signal Explanation sign word Immediate danger to life or A Danger risk of severe personal injury Risk of death from electric Danger shock Warning Risk of minor personal injury Risk of material or environ Caution mental damage 2 1 Classification of warnings 2 1 2 Structure of warnings Warning signs are identified by an upper and lower separat ing line and are laid out according to the following basic principle Signal word Ty
15. VU 618 9 VU 624 14 VU 630 20 VU 637 6 VUW 824 10 VUW 831 17 VUW 837 D O77 Limit on cylinder charging output Limit on cylinder charging output in kW in kW D 078 Limit on cylinder charging temperature 55 C 80 C 75 C 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 ot adjustable D 081 Operating hours hot water generation In hours h ot adjustable D 082 Number of burner start ups in heating Number of start ups ot adjustable mode D 083 Number of burner start ups in hot water Number of start ups ot adjustable mode D 084 Maintenance indicator Number of hours Setting range O to 3000 hrs and for deactivated until the next maintenance D 088 Start delay for hot water draw off detec 1 5 I min and no delay 1 5 I min and tion via impeller VUW boilers only 37 I min and 2 s delay no delay D O9O Status of digital controller recognised not recognised Not adjustable 11 1 Diagnosis codes continued 52 Installation and maintenance instructions ecoTEC plus 0020116700_03 Code Parameter Adjustable values D O91 Status DCF with external sensor con No reception nected Reception Synchronised Valid D O93 Setting of device specific number DSN Setting range O to 99 Factory setting Your own setting Not adjustable D O94 Delete fault history Delete fault list D O95 Software version of PeBU
16. as described in gt section 10 7 gt Check that the expansion relief valve of the heating sys tem is functioning correctly by turning the handle on the valve gt Check the pressure in the heating system and top up with water if necessary gt Close the filling valve and the cold water valve 10 8 Avoiding low water pressure To prevent damage to the heating installation caused by low water pressure the ecoTEC plus is fitted with a water pressure sensor If the water pressure falls below 0 08 MPa 0 8 bar the boiler indicates low pressure by displaying a flashing pres sure value If the water pressure falls below 0 05 MPa 0 5 bar the boiler switches off The fault message F 22 appears in the display gt Top up the water and switch the boiler on again A flashing pressure value appears on the display until a pressure of 1 1 bar or higher has been reached 10 8 1 Top up VUW boilers using a filling device If you notice frequent drops in pressure then determine and eliminate the cause i e water leaks in the system Failure to do so along with frequent topping up will result in system corro sion and subsequent failures 10 3 Filling the VUW boiler using a filling device Installation and maintenance instructions ecoTEC plus 0020116700_03 The VUW boilers are equipped with a filling device gt Insert the double non return valve 1 of the filling line into the cold water stop valve and secure t
17. burner door and premix burner Condensing technology Technology which maximises the use of the calorific value of the fuel The flue gas is cooled until the water vapour that it contains condenses The condensation heat that this releases can also be used In particular the flue gas losses are greatly reduced The losses from conduction of heat and radiation are also reduced by the lower system temperatures The entire heat ing installation should therefore be designed for low system temperatures flow return temperature for the effective use of the calorific value The level of efficiency attainable for boilers is always given based on the heating value of the gas Due to the additional condensation heat used the cal culated values can exceed 100 Digital information and Analysis system DIA The Vaillant ecoTEC plus boiler is fitted with a digital infor mation and analysis system DIA If additional settings are Installation and maintenance instructions ecoTEC plus 0020116700_03 required which have not been configured using the installa tion assistant then you can view and modify these using the DIA eBUS eBUS is an abbreviation for energyBUS The eBUS is a spe cial bus used in heating technology which assists the com munication between intelligent components in the heating technology In a Vaillant system up to eight different heat generators can be connected via the eBUS The eBUS communications protocol simplif
18. 1 Fitting the gas connection example VUW boiler gt Make the gas connection as shown Installation and maintenance instructions ecoTEC plus 0020116700_03 6 Hydraulic installation The work described in this section must only be carried out by a competent person 6 1 Preparing for installation Danger Risk of death caused by an incorrectly installed system Heating water that leaks from the discharge pipe of the expansion relief valve can cause severe burns gt Install the expansion relief valve and its discharge pipe work termination ensur ing that there is no danger to persons in or about the building This may be out side or to a suitable open drain in the installation room gt Make sure that the drain is visible Caution Risk of damage caused by contaminated lines Foreign bodies such as welding remnants sealing residue or dirt in the water lines can cause damage to the boiler gt Flush the heating installation thoroughly prior to installation Caution Risk of damage from 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 generator circuit and the boiler gt If using non diffusion tight plastic pipes in the heating installation separate the system by installing an external heat exchanger between the boiler and the heating installation Danger Risk of scalding a
19. 5 Ee MX S 3 Stepper motor white 10 gt a p c S 4 gt 5 9 A Mass flow sensor 813 8 gt I id 2 2T ME Diverter me i ed St valve 14 gt Water pressure 13 gt c3 sensor x2 1 gt 4 blue gt D D d white z ad Cylinder sensor optional A white J evtinder contact C1 C2 I 2 2 red Zn T Flow sensor 2 blue 4 Return sensor 12 gt gt m X20135 3 Safety fuse en ae Coding resistor output range 15 g 1 p g 16 gt 4 gt 3 gt 17 gt X24 3 D s 7 b_ Coding resistor gas group Circulation pump remote control X41 External sensor External temperature sensor A Edge DCF connection connector Earth Earth 5 D m blue TES Bs gt Contact thermostat burner off X100 ha dl N 3 ID 24 V DC room thermostat f lo mie Bus connection pink Ps ml O Controller room th digital 24 V 230 V i 55 i Auxiliary relay X16 XERS Selection by D 026 L Internal pump N X18 green OH ROY 2 SR Ignition Ignition 5 No function electrode trans RT 2E 230 V AC room thermostat former L l DO 3 X1 29 Mains connection mm turguoise ml j gt Appliance earth variant dependent 8 3 Connection diagram for electronics box ecoTEC plus 612 615 618 624 630 32 Installation and maintenance instructions ecoTEC plus 0020116700_03
20. 50 30 C Nominal heat output range P at 80 60 C Maximum heat output for hot water generation Maximum heat input for hot water generation Maximum heat input at the heating side Unit EI cee EIER 824 VUW GB 831 VUW GB 837 VUW GB 246 5 5 316 5 5 376 5 5 19 5s N 0 od UI io Water volume at AT 42 K Minimum heat input G20 kW 5 Minimum heat input G31 kW Minimum heat output with G31 kW Heating output setting range kW 6 28 Heating Max flow temperature 85 Max flow temperature setting range factory setting 75 C C 30 BO Min pressure for full operation MPa bar 0 8 Permissible total over pressure MPa bar 0 3 3 Expansion vessel capacity 10 Circulation water quantity with reference to AT 20 K l h 817 1032 1204 Condensate rate approx pH value 3 5 4 0 in heating mode 50 C supply 30 C return n 2 0 2 5 29 Remaining feed head of pump at nominal circulation water volume MPa bar 0 025 0 25 0 020 0 20 DHW mode VUW boiler only Lowest water volume I min 1 5 Water volume at AT 35 K Water volume at AT 30 K Permitted overpressure Required connection pressure l min 8 2 10 3 13 0 MPa bar 0 035 0 35 Hot water output temperature range 35 65 General Gas connection boiler side Flue gas spigot Flow return heating connections boiler side mm 22 Hot and cold water connection boiler side Inches G 3 4 Connector expansion r
21. Communication fault between display and PCB in the electronics box Code Meaning F 93 Gas group fault Commu No communication with the PCB nication fault 13 2 Fault codes continued 13 3 Using the function menu In order to remedy boiler problems you can use the func tion menu which allows you to actuate and test individual components of the heating installation section 12 3 13 4 Running test programs By activating various test programs you can trigger special functions on the boiler gt table 10 1 The display shows which test program you have chosen gt Read how to start the test programs in gt section 10 4 13 5 Resetting parameters to factory settings As well as the option to manually reset individual parame ters to the factory settings specified in gt table 11 1 you can also reset all parameters at once gt Set the value of the diagnosis code parameter D 096 to 1 section 11 1 You have now reset all parameters to factory settings Installation and maintenance instructions ecoTEC plus 0020116700_03 71 14 Replacing components The work described in this section must only be carried out by an approved competent person gt Only use genuine Vaillant spare parts for repairs An overview of the available genuine Vaillant spare parts can be obtained From your parts wholesaler Alternatively contact Spares Technical Enquiries on 01773 596615 or via email technicalspar
22. Factory gas setting Danger Risk to life due to poisoning CO is an extremely toxic gas Risk to life due to excessive CO concentrations gt If you are not able to adjust the boiler correctly and the flue gas values remain higher than allowed in gt table 12 1 call the Vaillant Service Solutions 0870 6060 777 gt Do not start up the boiler 12 1 5 Performing the gas family check Danger Risk to life due to poisoning CO is an extremely toxic gas Risk to life due to excessive CO concentrations Fault codes F 92 or F 93 may occur as result of the gas family check gt Correct the failure unconditionally before starting up the boiler for continuous operation Menu gt Installer level gt Test programs Gas family check The gas family check checks the boiler setting with regard to combustion quality gt Perform the gas family check as part of regular boiler maintenance after replacing components or working on the gas route 60 No CO CO or CO measurement is possible dur ing the gas family check Result Meaning F 92 Coding resistor fault The coding resistor on the PCB does not Response gt Check the coding resistor repeat the gas family check and enter the correct gas fam the permitted range match the ily entered gas family successful Combustion None quality is good Appliance con figuration matches the specified gas family
23. If you contact Vaillant Service Solutions 0870 6060 777 or your Vaillant service partner if possible please mention the fault code displayed F xx the boiler status that is displayed S xx in the Live Monitor section 13 2 1 13 2 Performing diagnostics You can use the function menu to control and test individ ual components of the boiler in the fault diagnosis Menu gt Installer level gt Test programs gt Function menu gt Use the function menu for fault diagnosis gt section 12 3 13 2 1 Call up Live Monitor status codes Menu gt Live monitor You can call up the boiler status codes in the display which provide information on the current operating status of the boiler S 04 Heating mode Burner on 13 1 Status code display view Installation and maintenance instructions ecoTEC plus 0020116700_03 13 2 2 Status codes Overview Display Meaning Heating mode S OO Heating no heat demand S 01 Heating mode fan start up S 02 Heating mode pump flow S 03 Heating mode ignition S 04 Heating mode burner on S 05 Heating mode pump fan overrun S 06 Heating mode fan overrun S 07 Heating mode pump overrun S 08 Heating mode burner anti cycling time DHW mode VUW boiler 10 Hot water demand via impeller sensor DHW mode fan start up DHW mode ignition DHW mode burner on DHW mode pump fan overrun DHW mode fan overrun S 17 DHW mode pump overrun
24. Re Re Rg 21 Connecting the hot and cold water VUW boiler 22 Connecting the domestic hot water cylinder 22 Connecting the heating flow and heating return 22 WOW BOM C Rea RE Se ee ee ee 22 VU sel EE EE EE RE 22 Low loss header ui ie EER EES SERE DERE BE De see Ese Eie 23 Connecting the condensate discharge pipework 23 Connecting the discharge pipe to the expansion relief valve on the boiler iese sesse ee ee ee ee Re Re ee 23 Flue gas installation sesse sesse se Re Se Re Re 25 Air flle gas dut ie EE ee ee GE ee 25 FUG Term Natl ONE RE EE EG ee 26 Electrical installation Preparing for installation Opening closing the electronics box Establishing the mains CONNECTION eeseeeeeeeeee 28 Connecting the controller Fitting the controller eise sesse sesse se Re Se Re Re Connecting controllers to the electronic system 30 Connecting additional components sesse sees 30 Connecting the auxiliary relay grey connector ON PEB EE EE EE See EG Ge es de ese sd 30 Connect VR 40 2 from 7 multi functional module SEE See GE SE ae ee ee nee Ee 31 Actuating the circulation pump demand controlled ii sesse sesse sesse ee ee Se Se Se ee se se 31 Connection diagraMS esse sesse se see se ee SR ee SR ee Se ee 32 Operation esse ree oes es eg eg ee Ee ke ee Calling up the installer level Overview of the menu structure COMMISSIONING ccescscesesescssesecssssesesesseee
25. Solar pump not active eBUS remote control not active Legionella protection pump not active Solar valve not active D 028 Switching of relay 2 on the 2 in 7 Circulation pump multi functional module VR 40 External pump Cylinder charging pump Extractor hood External solenoid valve External fault message Solar pump not active Remote control eBUS not active Legionella protection pump not active Solar valve not active D O33 Fan speed target value In rpm ot adjustable D O34 Fan speed actual value In rpm EE ot adjustable D O35 Position of the diverter valve Heating mode Not adjustable Parallel operation DHW mode D O36 Hot water flow quantity impeller sen In I mi ot adjustable SON D O39 Solar feed temperature Actual value in C Not adjustable D O4O Flow temperature Actual value in C Not adjustable D O41 Return temperature Actual value in C ot adjustable D 044 Digitised ionisation value Display range O to 1020 Not adjustable gt 800 no flame lt 400 good flame D O46 Pump type Disable via relay Disable via Disable via PWM relay D O47 Outside temperature with weather con Actual value in C Not adjustable trolled Vaillant controllen D O50 Offset for minimum speed In rpm setting range O to 3000 Nominal value set in factory D O51 Offset for maximum speed In rpm setting range 990 to O Nominal value set in factory D O58 Activation of solar post heating for VUW Solar post heating mode deactivated Solar post
26. and setting facilities of the operator level are also described in the gt operating instructions The following overview shows the read off and setting facili ties of the installer level 9 1 Calling up the installer level Caution Risk of damage caused by incorrect han dling Incorrect settings at installer level can cause damage to the heating installation gt You should only access installer level if you are an approved competent person Installer level is secured against unauthorised access with a password as incorrect parameter settings at this level can cause functional faults and damage to the heating installa tion gt Press the left and right selection buttons i simultaneously The following menu appears on the display gt Scroll using the minus button or the plus but ton until the menu point installer level appears gt Press the right selection button to select the menu point Enter code and the value OO appear in the display gt Select the value 17 code using the minus button C dor the plus button F __ gt Press the right selection button to confirm the entered code The installer level appears with a selection of menu points In the following a path specification at the beginning of an action instruction specifies how to access this function in the installer level e g Menu gt Installer level gt Test programs gt Test programs If you exit the instal
27. any damage resulting from such use The user alone bears the risk Intended use includes the following observance of accompanying operating installation and maintenance instructions for Vaillant products as well as for other parts and components of the system installing and fitting the appliance in accordance with the boiler and system approval complying with all of the inspection and maintenance conditions listed in the instructions Caution Any improper use is forbidden 2 3 Basic safety instructions gt Observe the following safety instructions at all times European installation directive Installation and maintenance of the appliance should only be undertaken by a competent person referred to in these instructions as competent person or skilled trade com pany and thereby indicating male and female persons approved at the time by the Health and Safety executive and in accordance with the gas safety installation and use regulations 1998 The existing regulations rules and guide lines must be observed when doing so The competent per son is also responsible for inspection maintenance and repairs to the unit as well as alterations to the gas volume setting Installation and maintenance instructions ecoTEC plus 0020116700_03 Only IE The installation must comply with the current Ver sion of 1 S 813 Domestic Gas Installations and the current Building Regulations The current ETCI Regulations for inst
28. boiler Switch on the connected domestic hot water cylinder gt Make sure that the cylinder thermostat is requesting heat gt Activate the Live monitor 2 section 13 2 1 y If the cylinder is being charged correctly status code S 24 appears in the display The status code that is displayed is also explained by the plain text display DHW mode Burner on 47 DHW mode Burner on 10 11 Display during cylinder charging VU boilers only gt If you have connected the controller for the heating installation using a two wire eBUS line then set the hot water temperature at the boiler to the maximum possible temperature gt table 11 1 gt Adjust the target temperature for the connected domes tic hot water cylinder to the controller 10 13 Final flush of the heating system hot gt Operate the appliance until the boiler and the heating system are up to temperature Check the heating system for leaks Connect a hose to the drain valve located at the lowest position of the heating system Shut off the boiler open the drain valve and all purging valves on the radiators and allow the water to flow out of the heating system and the boiler quickly and fully Close the drain valve Fill the heating system again with water as described in gt section 10 7 3 Re fill the system until the system design pressure of 0 1MPa 1 0 bar is attained The actual reading on the digital pressure gauge sh
29. boilers DHW activation target value minimum 60 C heating mode Switch hot water mode deactivated 11 1 Diagnosis codes continued Installation and maintenance instructions ecoTEC plus 0020116700_03 51 Code Parameter Adjustable values Factory Koun own setting setting D 060 Number of temperature limiter shut Number of shutdowns Not adjustable downs D O61 Number of ignition device cutoffs Number of unsuccessful ignitions in the last attempt ot adjustable D O64 Average ignition time In seconds ot adjustable D 065 Maximum ignition time In seconds ot adjustable D 067 Remaining burner anti cycling time In minutes Not adjustable D 068 Unsuccessful ignitions at Ist attempt Number of unsuccessful ignitions Not adjustable D O69 Unsuccessful ignitions at 2nd attempt Number of unsuccessful ignitions ot adjustable D O7O Setting diverter valve position Normal operating mode Normal oper Mid position parallel operation ating mode Continuous heating adjustment D O71 Target value maximum heating flow 40 to 80 C temperature D O72 Internal pump overrun after cylinder Adjustable from O 10 minutes in increments of 1 charging minute D O73 Warm start target offset Adjustable from 15 K to5 K o D 075 Max charging time for domestic hot 20 90 min water cylinder without independent con trol system D O76 Device specific number 1 VU 612 Not adjustable 3 VU 615 4
30. circulation pump the low loss header ensures that a suffi ciently high minimum quantity of water is always circulating through the boiler No electrical accessories are required in order to use a low loss header 6 6 Connecting the condensate discharge pipework Danger Risk of death from flue gases An empty or insufficiently filled condensate water siphon can generate flue gas in the room air gt Make sure that the condensate water siphon is filled with water when switching on the boiler The ecoTEC plus boilers are equipped with a condensate siphon The filling height is 145 mm The siphon collects the condensate that has formed in a vessel with a capacity of approx 200 ml and intermittently deposits the contents to the discharge pipe This minimises the risk of the dis charge pipe freezing up ae b c E N Gulley Internal discharge system Internal stackpipe Soakaway 6 4 Condensate discharge pipework gt Connect the condensate discharge 1 of the boiler to a condensate discharge pipework 3 which has a minimum internal diameter of 19 mm 22 mm outside diameter for all external pipes and is made from an acid resistant material e g plastic overflow pipe Installation and maintenance instructions ecoTEC plus 0020116700_03 The condensate discharge pipework must have a continuous fall 45 mm per metre and should whenever possible terminate at a suitable dis charge
31. ecoTEC plus 0020116700_03 12 1 Measuring the CO concentration The boiler is fitted with a flue gas analysis point 1 A suitable flue gas analyser can be con nected to this point to establish the combustion performance of the boiler gt Remove the front casing gt section 4 7 gt Start the testing program P O1 gt section 10 4 gt Wait at least 5 minutes until the boiler reaches its oper ating temperature gt Measure the CO concentration at the flue gas analysis point 1 Compare the measured value with the corre sponding value in gt table 12 1 gt If all these points are as required proceed as described in gt section 12 2 gt If one of the flue gas values is greater than the accepta ble values in table 12 1 then proceed as described in the following gt section 12 1 4 12 1 4 Adjusting the CO concentration or the air Danger Increased risk of poisoning due to incor rect settings If one of the flue gas values is greater than the acceptable values in gt table 12 1 then gt Check the integrity of the complete flue gas installation gt Check the integrity of the combustion circuit seals gt Check the gas inlet working pressure gt Check the gas flow rate Installation and maintenance instructions ecoTEC plus 0020116700_03 12 2 Removing the covering cap for the air ratio setting adjust ing screw gas setting and making the air ratio setting
32. ensure that no third parties enter the building gt Alert the police and fire brigade when you are outside the building gt Use a telephone outside the building to inform the gas supply company or National Grid Transco 0800 111999 What to do if you smell exhaust fumes Installation errors damage manipulation unauthorised installation sites or the like can cause flue gas to escape and result in a risk of poisoning If there is a smell of exhaust fumes in the building proceed as follows gt If possible open doors and windows fully and ensure adequate ventilation gt Switch the boiler off gt Check the flue gas route in the boiler and the flue gas pipes Installation and maintenance instructions ecoTEC plus 0020116700_03 Material damage caused by corrosion To prevent corrosion on the boiler and also on the air flue gas duct note the following gt Do not use sprays solvents chlorinated cleaning agents paint adhesives or similar substances in the vicinity of the boiler Under unfavourable circumstances these substances may cause corrosion Material damage due to improper use and or unsuitable tools The use of unsuitable tools or improper use thereof may cause damage such as gas or water leaks gt When tightening or loosening threaded connections always use suitable open end spanners but do not use pipe wrenches extensions etc 2 4 Important information regarding propane fired boilers P
33. expectancy The leak detection spray can damage the heating device gt Do not spray the leak detection spray on the cover cap on the filter of the Ven turis gt Check the boiler for gas leaks gt Reattach the front casing gt section 4 7 gt Perform a function check section 10 12 14 2 Replacing the burner gt Remove the compact thermal module gt section 12 4 1 14 1 Replacing the burner gt Undo the four screws 1 on the burner gt Remove the burner gt Fit the new burner with a new seal Make sure that the nose on the burner window grips the seal inside the recess in the burner gt Reinstall the compact thermal module section 12 4 6 Installation and maintenance instructions ecoTEC plus 0020116700_03 14 3 Replacing the fan gt Remove the air intake pipe gt section 12 4 1 gt Remove the three plugs from the gas valve 5 gt fig 14 2 The plugs on the fan motor and the venturi have latching lugs with which they engage in the slot You have to push in the latching lug to pull off the plug gt Remove the plug from the sensor of the venturi 3 gt fig 14 2 gt Remove the plug s depending on the boiler version 4 gt fig 14 2 from the fan motor gt Unscrew the two cap nuts at the top 7 gt fig 14 2 and bottom 6 gt fig 14 2 from the gas valve Counterhold at the opposite side of gas valve when unscrewing o
34. flexible corrugated gas pipe gt Do not suspend any loads from the cor rugated gas pipe gt Either unscrew the cap nut 3 gt fig 12 3 from the gas valve or the cap nut 4 gt fig 12 3 between the corrugated gas pipe and the fixed gas pipe Installation and maintenance instructions ecoTEC plus 0020116700_03 gt AK At ZA Sy 12 4 Removing the compact thermal module The plugs at the fan motor and the venturi have latching lugs with which they engage in the slot You have to push in the latching lug to pull off the plug Remove the plug of the ignition line 7 gt fig 12 4 and the ground connection 6 gt fig 12 4 from the ignition electrode Remove the plug 4 gt fig 12 4 from the fan motor Remove the three plugs from the gas valve 5 gt fig 12 4 Remove the plug from the venturi 3 gt fig 12 4 Release the cable harness from the clip on the gas valve retainer Unscrew the four nuts 8 gt fig 12 4 Remove the entire compact thermal module 2 gt fig 12 4 from the heat exchanger 1 gt fig 12 4 Once removed check the burner and the heat exchanger for damage and dirt If necessary clean the components according to the fol lowing sections Check the burner flange insulation on the module If signs of damage other than small cracks are apparent you must replaced it article number 193 595 63 12 4 2 Cleaning the heat exchanger 12
35. 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 unsuccessful Gas meter defective or gas pressure regulator has triggered air in gas gas flow pressure too low thermal isolator device TAE has triggered condensate duct blocked incorrect gas restrictor incorrect ET 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 boiler electronics defective F 29 Failure during operation Re ignition unsuccessful Gas supply temporarily stopped flue gas recirculation condensate duct blocked faulty earthing of boiler ignition transformer has spark failure F 32 Fan fault Plug at 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 35 Air flue gas duct fault Air flue gas duct blocked F 42 Coding resistor fault possible in combination with Short circuit interruption in coding resistor output range in cable har F 70 ness at heat exchanger or gas group resistor on PCB 13 2 Fault codes Installation an
36. instructions 29 8 4 2 Connecting controllers to the electronic Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far can cause short circuits and damage the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables for a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs Caution Risk of damage from incorrect installa tion A mains voltage at the incorrect plug termi nals on the ProE system can destroy the electronics gt Do not connect a mains voltage to the eBUS terminals Make sure that the conductors are securely fas tened to the plug terminals of the ProE plug gt Open the electronics box gt section 8 2 gt Lead the supply lines of the components to be connected e g external controllers external sensors through the If you connect a weather compensator or room tempera ture control via eBUS then bridge input 24 V RT X100 or X106 if no bridge exists If using low voltage 24 V controls connect these in place of the bridge marked RT 24 V X100 or X106 Close the electronics box section 8 1 In order to achieve pump operating mode Comfort continuously running pump for multi circuit controllers change diagnosis code D 018 Pump operating mode from Eco intermittent pump to Comfort section 11 1 2 Ple
37. neces sary replacing individual components that are subject to wear In any case regular servicing in line with column 2 in gt table 12 3 must be carried out to ensure continued efficient and reliable operation of the boiler You must carry out an annual inspection of the Vaillant ecoTEC The annual inspection can be effectively performed without removing components by requesting data from the DIA sys tem carrying out the simple visual checks indicated in gt table 12 3 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 gt table 12 3 Danger Risk of poisoning and burns caused by escaping hot flue gas Hot flue gas can escape and cause poison ing and burning if the boiler is operated with an incompletely mounted or open air flue gas duct or if the boiler is operated with internal leaks with the front casing open gt Operate the boiler for commissioning for testing purposes in continuous operation only when the front casing is fitted and closed and the air flue gas duct is com pletely mounted Exclusively for test purposes such as gas working pressure testing the boiler may be operated with the front casing removed for short durations ONLY but must have a completely mounted air flue gas duct 57
38. on the boiler gt Never modify the factory setting for the gas pressure regulator of the gas valve 14 5 Installing the gas valve gt Refit the components in the reverse order It is impera tive that you use new seals 4 and 5 gt fig 14 5 gt 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 gt fig 14 5 gas pressure regulators 14 6 Tightening the cap nuts on the gas valve gt Screw the flexible gas pipe to the gas valve Use new seals When the cap nuts are being screwed to the gas valve counterhold the opposite side of the gas valve or screw both cap nuts to the gas valve simultaneously gt Perform a gas family check after fitting the new fan gt section 12 1 5 Gas valves with gas pressure regulators 1 gt fig 14 7 are not installed in all boilers There are also versions without 14 8 Replacing the gas valve gt Remove the air intake pipe gt section 12 4 1 gt Remove the three plugs from the gas valve 2 gt fig 14 8 TA Installation and maintenance instructions ecoTEC plus OO20116700 03 The plug on the venturi has latching lugs with which it engages in the slot You have to release the latching lug by pushing it in to pull off the plug gt Remove the plug from the sensor of the venturi 1 gt fig 14 8 gt Unscrew the t
39. 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 condensate dis charge pipe to minimise any risk of freezing and beware when crossing cavities that the fall is maintained and the pipe sleeved gt The condensate discharge pipework must terminate in a suitable location Further information can be obtained from BS 6798 Specifi cation for installation of gas fired boilers of rated input not exceeding 70 kW net The condensate siphon 2 must be filled with water as described in the relevant section before the boiler is commissioned 6 7 Connecting the discharge pipe to the expansion relief valve on the boiler The expansion relief valve for the heating installation is integrated in the boiler gt Install the discharge pipe for the expansion relief valve so that it does not interfere with the removal and fitting of the condensate trap gt Leave an installation space of at least 180 mm beneath the condensate siphon We recommend not to shorten the discharge pipe supplied 6 5 Fitting the discharge pipe to the expansion relief valve example VUW boiler 23 24 Insert a seal 1 i
40. pump fault No response from flue non return flap or condensate pump defective F78 Interruption to DHW outlet sensor at external UK link box is connected but hot water NTC not bridged controller F 83 Flow and or return temperature sensor tempera When the burner starts the temperature change registered at flow and or ture change fault return temperature sensor is non existent or too small Not enough water in the boiler Flow and return temperature sensor not in correct position at pipe F 84 Fault Flow return temperature sensor tempera Flow and return temperature sensors returning implausible values ture difference implausible Flow and return temperature sensors have been inverted Flow and return temperature sensors have not been correctly fitted F 85 Fault Flow and return temperature sensors incor Flow and or return temperature sensors rectly fitted have been fitted to the same pipe wrong pipe F 92 Coding resistor fault The coding resistor on the PCB does not match the entered gas family Check the resistor repeat the gas family check and enter the correct gas family 13 2 Fault codes continued 70 Installation and maintenance instructions ecoTEC plus 0020116700_03 Cause Combustion quality outside the permitted range Wrong gas restrictor recirculation wrong gas group internal pressure measuring point in ven turi blocked do not use lubricant on O ring in venturi Gas family check prematurely terminated
41. the boiler gt section 4 7 Close the gas isolation valve of the boiler 45 77 ng FA 73 is amp ty a3 MCN N gt Undo the sealing screw of the measuring nipple 1 lower screw at the gas valve using a screwdriver gt Connect a digital pressure gauge or U tube manometer 2 to the measuring nipple 1 gt Open the gas isolation valve of the boiler gt Start the boiler by activating the test program POT as described in gt section 13 4 gt In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo stat gt Alternatively for VUW boilers fully open the hot water taps to ensure full flow rate through the boiler gt With the boiler operating at full load check that the gas inlet working pressure at the reference test point 1 complies with the requirements of gt table 10 3 gt Should the pressure recorded at the reference test point in the boiler be lower than indicated gt table 10 3 check if there is any blockage in the pipework or if the pipe work is undersized If the supply pressure is out of tolerance contact your Emergency Service Provider If the gas inlet working pressure at the reference test point 1 is not within the permissible range and you cannot cor rect the failure notify the gas supply company or the Vail lant Service Solutions 0870 6060 777 and proceed as fol lows gt Take the boiler out of operation
42. with suitable straps Ensure safe lifting techniques are used keep back straight bend using legs Keep load as close to body as possible If 2 persons performing lift ensure co ordinated move ments during lift Avoid upper body top heavy bending do not lean forward sideways Clear the route before attempting the lift If removing boiler from truck straddle the load and tilt forwards to facilitate secure grip Ensure safe lifting techniques are used keep back straight bend using legs Do not twist reposition feet instead Take care to avoid trip hazards slippery or wet surfaces and climbing steps and stairs Always use assistance if required Carriage of carton from point of delivery to point of installation roofspace gt gt gt 14 Recommend 2 person lift Ensure co ordinated movements during lift Avoid upper body top heavy bending do not lean forward sideways Clear the route before attempting the lift Take care to avoid trip hazards slippery or wet surfaces and climbing steps and stairs When transferring appliance into roofspace recommend 1 person to be in roofspace to receive the appliance and other person to be below to pass up and support appliance Ensure safe lifting techniques are used keep back straight bend using legs Keep load as close to body as possible Always use assistance if required It is assumed safe access flooring and adequate lighting are provided i
43. 24 on the old PCB and insert it into the new PCB If you are replacing only one of the two components PCB or display the parameter matching functions automati cally By switching on the boiler the new component takes over the previously set parameters from the unreplaced component 14 8 2 Replacing the PCB and the display at the same time Setting the language and appliance type If you are replacing both components you must detach the coding resistor gt fig 14 14 pos 1 plug X24 at the front left from the old PCB and plug it into the new PCB 14 15 Setting the language If you are replacing both components at the same time spare part case the boiler switches directly to the menu for selecting the language after switching on The default language setting is English You can select the language that you require using the minus and plus buttons and con firm with OK You are then automatically taken to the appliance type set ting D 093 gt Select the correct value for the relevant appliance type in accordance with gt table 14 1 After confirmation the display restarts itself automatically and then starts the installation assistant ecoTEC plus AE IE 612 VU GB 126 5 5 1 615 VU GB 156 5 5 3 618 VU GB 186 5 5 4 624 VU GB 246 5 5 9 630 VU GB 306 5 5 14 637 VU GB 376 5 5 20 824 VUW GB 246 5 5 6 831 VUW GB 316 5 5 10 837 VUW GB 376 5 5 17 14 1
44. 4 3 Checking the burner Caution Risk of damage from water spray If you fail to protect the electronics box adequately water can penetrate the box during cleaning and may damage the elec tronics gt Protect the folded down electronics box against sprayed water gt Remove the compact thermal module gt section 12 4 1 12 5 Cleaning the heat exchanger Caution Risk of damage to heat exchanger gt You should neither loosen nor tighten the four screws 1 gt The water flows out of the heat exchanger through the con Clean the heating coil 3 of the heat exchanger 4 using water or if required commercially available white vinegar Allow the vinegar to act on the heat exchanger for 20 minutes 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 sur face 2 on the back of the heat exchanger densate siphon 64 N ae KAA 12 6 Checking the burner As the burner 1 is maintenance free it does not require cleaning gt Check the surface of the burner for damage gt If necessary replace the burner 12 4 4 Cleaning the condensate siphon Danger Risk of death caused by improper main tenance If you operate the boiler with an empty condensate siphon flue gas can escape into the room air gt Top up the condensate siphon after each cleaning session
45. Avoiding low water DreSSUF iis sesse sesse se ee Re 43 Top up VUW boilers using a filling device 43 Fill and purge the hot water system Filling the condensate siphon Checking the gas setting Factory setting ss ER Ee i Ge Ge Checking for tightness of the flue gas installation and flue gas recirculation ees 45 Checking the gas flow rate Checking the gas inlet working presSure 0 45 Carrying out a full FUNCTION test se see ee 46 Checking the heating mode sesse se see Re 47 Checking hot water generation VUW boilers ONIY sesse sesse se ee Se Re Se Re Se Re ee 47 Checking hot water generation CV ULB OINES ONLY ee Ee ed Ge oe ES ee de 47 Final flush of the heating system hot 48 Adapting the boiler to the heating installation 49 Diagnosis codes OVerVi W iese sesse sesse se Re RR 49 Setting the heating partial load sesse se sesse se see 53 Setting pump overrun time and pump operating mode ie esse sesse se ee Re Se Re Se Re ee Setting the maximum flow temperature Setting the return flow temperature control 54 Burner anti cycling tiME esesss se sesse se ee Se Re RR Setting the maintenance interval Setting the PUMP OUTPUT see sesse se ee SR ee RE Setting the by pass ValVe esse se sesse se se ee SR ee ee Handing over the boiler to the operator 56 Inspection and maintenance esse sesse se ee 57 Inspection and maint
46. B Installation and maintenance instructions For the competent person Installation and maintenance instructions ecoTEC plus VU VUW Vaillant BEFORE PROCEEDING ENSURE BOILER IS CORRECT FOR GAS GROUP SUPPLIED Table of Contents 11 12 13 1 4 1 5 1 6 1 7 21 211 21 2 2 2 2 3 2 4 2 5 2 5 1 2 5 2 2 5 3 2 5 4 2 5 5 2 5 6 2 5 7 2 5 8 2 5 9 2 5 10 41 411 41 2 4 2 4 21 4 2 2 4 2 3 4 3 4 4 4 41 4 4 2 4 5 4 6 47 48 Notes on the documentation eee 4 Storing document sesse se ee ee Se Re SR Re Se Re 4 SymbDols used sarsies ese ESE EER GER ER EES SES Nee EE ees Ged 4 Applicability of the instructions vase sea Identification Plate see sesse se ee Se Re Re Se Re ee 4 CE label ti et Ee ke ee ed ge ee de eed deed Ke eed be ed ed ed 4 B nchmiarkK RR REKE EE gee ee a 5 TYDE OVEr VIEW ees ees ese ee oek Gee be Gees ek oe ee 5 SPCC RE EE ONT Structure of warnings Intended use sesse sesse ee Basic safety instructions Important information regarding propane fired boilerS i esse sesse se ee Se Re Se Re Se Re ee 7 General reguirements 8 Related documents 18 Installation site ees ee ee ee ee ee ee Ge Ge Ge Ge ee 8 Gas SUDDIV sesse EG ESE ge GE gek Ee eek ee gee bee eed eke ee 9 Air supply site ii as Compartment Ventilation sesse se sesse se ee SR Re Se Re 9 Electrical supplies esse BEE EE GEES Se GEE ees Gee 9 Water supply Combination
47. Device specific numbers for the appliance types The electronics are now set to the appliance type and the parameters of all adjustable diagnosis codes are set to fac tory settings gt Make the system specific settings gt section 11 78 Installation and maintenance instructions ecoTEC plus 0020116700_03 15 Decommissioning 15 1 Temporarily shutting down the boiler Caution Risk of frost damage due to incorrect shutdown If you switch off the boiler using the on off switch or disconnect it from the power mains this can cause frost damage to the heating installation gt Only shutdown the boiler fully if the heating installation is otherwise pro tected from frost gt Drain the heating installation fully 15 1 Switching off the boiler gt Close the gas isolator cock gt Close the cold water stop valve gt Drain the heating installation fully gt section 12 2 2 gt Press the on off switch 1 The display 2 goes off 15 2 Taking the boiler permanently out of service gt Close the gas isolator cock gt Close the cold water stop valve gt Drain the heating installation fully gt section 12 2 2 gt Press the on off switch 1 The display 2 goes off gt Isolate the boiler from the power mains gt Dispose of the boiler correctly gt section 15 3 Installation and maintenance instructions ecoTEC plus 0020116700_03 15 3 Disposing of the boi
48. ESE Soe ee Gee eek Ge ee eek gen gese ged ene geseses DA Water DresSUF ies ESSEN ESE GER SE Ge Ke GE SEE ee ge EG Se ESE eg 43 67 Purge 43 68 69 Heating installation sesse se se see se ee ee Se Re Se Re Se Re AZ WIFING GIAQKAM EG Ee 32 R Removing BRUIT EER RE EE Re Ek Ee 72 Compact thermal module esse sesse se se ee Re Re RE 62 Be ER EE EO 77 EA SE SG GE Ee Ee 73 TA PONE CASING RR EE EE E EE 18 GaS Vale EG ee ge ede 74 H at OXCHANG SN esse se gees eo ene de se ee oe Ged ge ee de 76 PCB ES EE Ge ee Ge Ge Ge Ee ee ees 71 Installation and maintenance instructions ecoTEC plus OO20116700 03 89 Supplier Vaillant Ltd Nottingham Road 8 Belper 8 Derbyshire DE561JT Telephone 0845 602 2922 8 www vaillant co uk info vaillant co uk Manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid 8 Telefon O 21 91 18 0 Telefax O 21 91 18 2810 wwwyaillant de info vaillant de Subject to change 0020116700_03 GBIE 072012
49. If necessary cut the wall breakthrough for the air flue gas duct Installation and maintenance instructions ecoTEC plus 0020116700_03 4 5 Dimension drawing and connection measurements 4 4 Connection measurements in mm 440 at aal lt ry T al N N ts BVaillant AA X XOX gt ODDO Oo N 35 35 gt 100 100 _ r Key 1 Wall breakthrough for air flue gas duct 2 Hanging bracket 3 Heating flow 22 x1 5 4 Hot water connection 15 x1 5 only for VUW boilers 5 Gas connection 15x1 5 ecoTEC 837 22 x1 5 6 Cold water connection 15x1 5 only for VUW boilers 7 Heating return 22 x1 5 8 Air flue gas duct connection 9 Condensate siphon 10 Condensate discharge connection 19mm 11 Heating expansion relief valve discharge pipe connection 15 mm Minimum dimension from wall bracket to center line of air flue gas duct wall break through Dimension A mm 60 100 with elbow 87 PP 175 80 125 with elbow 87 PP 223 4 4 Dimension A for air flue gas duct wall breakthrough with VU and VUW boilers Installation and maintenance instructions ecoTEC plus 0020116700_03 8 1N N 3 4 5 7 11 A a O IN fee A Y 9 10 ecoTEC plus installation depth Dimension B mm 612 VU GB 126 5 5
50. LPG G31 Minimum Maximum Minimum Maximum Boiler pressure at pressure at pressure at pressure at reference reference reference reference test point in test point in test point in test point in kPa mbar kPa mbar kPa mbar kPa mbar 612 615 618 624 1 6 16 2 3 23 2 3 23 4 3 43 630 824 831 aa 15 5 2 3 23 2 3 23 4 3 43 10 3 Gas inlet working pressure at the reference test point 10 12 Carrying out a full function test gt After completing the installation and the gas setting per form a complete function check of the boiler before start ing up the boiler and handing it over to the operator Installation and maintenance instructions ecoTEC plus 0020116700_03 gt Start up the boiler in accordance with the relevant oper ating instructions If you have still not successfully completed the installation assistant and subsequently confirmed this it will be restarted when you switch on the boiler Before continuing complete the installation assistant section 10 2 Ay 10 8 Checking for leaks Caution Malfunction or shortened life expectancy The leak detection spray can damage the heating device gt Do not spray the leak detection spray on the cover cap on the filter of the Ven turis 3 gt fig 3 1 and 3 2 Heating mode Burner on 10 9 Live monitor display during heating mode If the boiler is operating cor
51. RF Programmable Room Control Weather Compensating Controls VRC 470 Weather Compensator VRC 470f RF Weather Compensator Communication vrnetDIALOG comDIALOG Accessories VR 65 Control Centre VR 66 Control Centre VR 61 2 Two Zone Wiring Centre VR 81 2 Remote Control Unit VR 68 2 Solar Module 4 1 Controller accessories Note 392f RF transmitter wired external to boiler 4 1 2 Installation and operation Optional accessories are available for use in conjunction with the installation and operation of the ecoTEC 12 4 1 Scope of delivery for ecoTEC plus VU boiler Installation and maintenance instructions ecoTEC plus 0020116700_03 Item Qty Description Wall bracket Boiler Lower cover Supply pipes gas heating expansion relief valve Service valves Installation template Enclosure documentation OC HOUR Bags with parts incl electrical plug and cable clamps 1 1 1 4 3 1 1 3 1 Additional for propane boilers sticker for tank 4 2 Scope of delivery for ecoTEC plus VU boiler Description Wall bracket Boiler Lower cover Supply pipes gas heating water expansion relief valve Service valves Installation template Enclosure documentation Bags with parts incl electrical plug and cable clamps Additional for propane boiler
52. S components PCB BMU Display AD actoSTOR APC HBI VR34 D O96 Factory setting Reset all adjustable parameters to factory setting Not adjustable D O98 Value of coding resistors for gas group Display xx yy range 09 VU 624 VUW 831 10 VU 630 11 VU 637 VUW 837 02 P Gas 03 H Gas and output range xx Coding resistor 1 in cable harness for output 08 VU 612 VU 615 VU 618 VUW 824 yy Coding resistor 2 on PCB for gas group Not adjustable 11 1 Diagnosis codes continued 11 11 Setting the heating partial load The heating partial load of the Vaillant ecoTEC plus boiler is factory set to auto This means that the boiler independ ently determines the optimum heating output depending on the current heat demand of the system A setting is nor mally no longer required If you still want to set a fixed maximum heating partial load you can set a value under diagnosis code D OOO which equates to the boiler output in kW 11 1 2 Setting pump overrun time and pump operating mode The pump overrun time for the heating mode is set at the factory to a value of 5 minutes You can set the pump over run time under diagnosis code D 001 within the range of 1minute to 60 minutes You can set a different pump oper ating mode under diagnosis code D 018 Here you have the choice between Eco and Comfort Comfort continuously operating pump The internal pump is switched on when the heating fl
53. Telephone Number Address Commissioned by print name Engineer ID 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 Time and Temperature Control to Heating Room Thermostat and Programmable Load Weather Optimum Start Programmer Timer Room Thermostat Compensation 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 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 litres CENTRAL HEATING MODE Measure and Record Gas Rate Burner Operating Pressure if applicable Gas Inlet Pressure Central Heating Flow Temperature Central Heating Return Temperature COMBINATION BOILERS ONLY Is
54. White 0020060585 Black Installation and maintenance instructions ecoTEC plus 0020116700_03 7 6 Termination of air flue gas duct under balcony or eaves 27 8 Electrical installation 8 1 Preparing for installation Danger Risk of death from electric shock Touching live connections can cause seri ous personal injury gt Switch off the power supply gt Secure the power supply against being switched on again Danger Risk of electrocution as a result of an improper electrical connection An improper electrical connection may neg atively affect the operational safety of the boiler and result in material damage or per sonal injury gt The electrical connection must be car ried out by a suitably qualified compe tent person who is responsible for com plying with the existing standards and guidelines gt Connect the boiler in accordance with BS 7671 IEE Regulations gt For IE Please observe the latest edition of the ETCI regulations Electro Technical Council for Ireland gt Earth the boiler 8 2 Opening closing the electronics box Opening the electronics box gt Remove the front casing from the boiler gt section 4 7 28 8 1 Opening the back wall of the electronics box gt Fold the electronics box 1 forwards gt Undo the 4 clips of the rear cover 2 of the electronics box from the brackets 3 at the rear and sides of the electronics box gt F
55. a competent person in accordance with the Gas safety installation and use regu lations In the UK this is considered to be a person approved at the time by the Health and Safety Executive In addition BS 6798 2009 Specification for installation and maintenance of gas fired boilers of rated input not exceeding 70 kW net advises that The person carrying out a combustion measurement must be assessed as competent in the use of a flue gas analyser and the interpretation of the results The flue gas analyser used must be one meeting the requirements of BS 7927 or BS EN50379 3 and be cali brated in accordance with the analyser manufacturers requirements Competence can be demonstrated by satisfactory com pletion of the relevant ACS standard assessment which covers the use of electronic portable flue gas analysers in accordance with BS 796 parts 1 to 4 The flue gas analyser is set to the correct fuel setting Installation and maintenance instructions ecoTEC plus 0020116700_03 We recommend the conclusion of an inspection and mainte nance contract with an approved company or installer The inspection serves to determine the actual condition of the respective boiler and compare it with the specified con dition This is done by measuring checking and observing Maintenance is required in order to eliminate any deviations of the actual condition from the specified condition This normally is done by cleaning adjustment and if
56. ad gt Keep boiler as close as possible to body throughout lift to minimise strain on back gt Ensure co ordinated movements to ensure equal spread of weight of load gt Always use assistance if required gt Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance Positioning of Appliance for Final Installation above worktop foreseeable obstructions etc gt If appliance weight is over 25 kg always use 2 persons to move where practical gt Fit bracket securely onto wall before lifting appliance into position gt Obtain firm grip on front and sides of appliance lift upwards onto worktop if practicable gt Ensure stable balance achieved and lift upwards to position in place on bracket gt If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler gt Ensure coordinated movements during 2 person lifts to ensure equal spread of weight of load gt Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level gt Do not twist reposition feet instead gt Keep boiler as close as possible to body throughout lift to minimise strain on back gt Avoid upper body top heavy bending do not lean forward sideways Installation and maintenance instructions ecoTEC plus 0020116700_03 gt Always use assistance if required gt Recommend wear su
57. aining purposes For situations where the discharge cannot be easily routed Vaillant have a remote pressure relief valve mounting kit available which can be used to provide a suitable way to achieve this 2 5 10 Venting The boiler is fitted with an automatic air vent Other meas ures need to be taken to allow the heating system to be either automatically or manually vented during filling and during commissioning Installation and maintenance instructions ecoTEC plus 0020116700_03 3 Description of the appliance Design 31 Functional elements of the VU system boiler Key Gas valve Water pressure sensor Venturi with mass flow sensor Heat exchanger Connection for the air flue gas duct Expansion vessel Air intake pipe Compact thermal module Ignition electrode 10 Fan 11 Automatic air vent 12 Pressure gauge 13 Internal pump 14 By pass valve 15 Expansion relief valve 16 Electronics box OmANnADU KRWN Installation and maintenance instructions ecoTEC plus 0020116700_03 3 2 Functional elements of the VUW combination boiler Key VOHNOU KRU Gas valve Water pressure sensor Venturi with mass flow sensor Heat exchanger Connection for the air flue gas duct Expansion vessel Air intake pipe Compact thermal module Ignition electrode Fan Automatic air vent Pressure gauge Internal pump By pass valve Expansion relief valve Electronics box Diverter valve with bypass Im
58. alling electrical equip ment must also be observed Installation and settings In the following cases the boiler must be operated only with the front casing fitted and closed and with a com pletely mounted air flue gas duct starting up test purposes continuous operation Otherwise under unfavourable operating conditions injury death or material damage may occur Exclusively for test purposes such as gas working pressure testing the boiler may be operated with the front casing removed for short durations ONLY but must have a com pletely mounted air flue gas duct What to do if you smell gas Installation errors damage manipulation an unauthorised installation site or similar can cause gas to escape and result in a risk of poisoning and explosion If there is a smell of gas in the building proceed as follows gt Avoid rooms that smell of gas gt If possible open doors and windows fully and ensure air is circulating gt Avoid the use of naked flames e g lighters matches gt Do not smoke gt Do not use any electrical switches plugs doorbells tele phones or other communication systems in the building gt Close the gas meter isolator device or the main isolator device gt If possible close the gas stop cock on the unit gt Warn the occupants in the building by knocking or call ing gt Leave the building gt If you can actually hear gas leaking leave the building immediately and
59. anometer 10 1 Switching on the boiler gt Press the on off button Operating instructions The basic display appears on the display 10 2 Installation assistant The installation assistant is launched when switching on the boiler for the first time It provides easy access to the most important test programs and configuration settings for Installation and maintenance instructions ecoTEC plus 0020116700_03 installing the boiler The installation assistant is displayed whenever the boiler is switched on until it has been suc cessfully completed You must confirm the start of the installation assistant Once confirmed all of the heating and hot water demands from the boiler are blocked This status remains until the installation assistant is completed or cancelled If you do not confirm the start of the installation assistant it will be closed 10 seconds after being switched on and the basic display will appear The next time the boiler is switched on using the on off button the installation assist ant will be started again 10 2 1 Language gt Select the required language using the minus or plus button gt Press the right selection button to confirm the selected language The language change must be confirmed a second time in order to avoid an unintentional change Press the right selection button and the plus button simultaneously and hold them down gt Press the fault clearance key for a short time gt Kee
60. ase note that the bridge at the ProE plug Burner off must be removed when connecting a maximum thermostat contact thermostat for underfloor heating 8 5 Connecting additional components Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far can cause short circuits and damage the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables for a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs left cable duct gt fig 8 1 pos 4 on the underside of the You can actuate an additional component with the aid of boiler the auxiliary relay that is installed in the ecoTEC plus only gt Use the strain reliefs provided ecoTEC 637 837 and two other components with the multi gt Shorten the supply lines as necessary functional module gt Only strip the outer sheathing of the supply lines for a maximum of 3 cm gt Ensure inner conductor insulation is not damaged during The following components can be actuated Circulation pump stripping of outer sheathing External pump Only strip inner conductors sufficient to make good sound connections Fit the stripped ends of the conductors with crimp pin terminals to ensure a secure connection free from loose strands to prevent short circuits Connect the ProE plug to the supply lines of the control ler using a screwdriver
61. attention to the burner door seal If dam age is evident proceed to column 2 Measure the gas flow rate during operation with maximum load gt section 10 11 3 If the gas flow rate complies to the table 10 2 continue with column 1 if not proceed to column 2 Check the gas inlet working pressure 2 section 10 11 4 operation with maximum load If the gas inlet working pressure complies to the gt table 10 3 continue with column 1 if not proceed to col umn 2 Check combustion by measuring CO CO and CO CO If the values are outside the tolerances of gt table 12 proceed to maintenance column 2 You must not proceed with the main tenance if a new burner door seal kit is not available Isolate the boiler from the power mains Check whether the electrical plug connections and the other electrical connections are fitted tightly and correct them if necessary Close the gas isolation valve and the service valves Drain the pressure in the boiler on the water side observe pressure gauge and check the charge pressure of the expansion vessel Top up if necessary Only with VUW boilers with actoSTOR Check the charge pressure in the expansion vessel of the layered storage tank Correct the pressure if necessary Remove the compact thermal module Check the integrity of all combustion circuit seals especially the burner door seal Ensure any damage found is repaired before proceeding Clean the heat exchanger gt section 12 4 2
62. be maintained and the boiler kept clear of any clothing Installation and maintenance instructions ecoTEC plus 0020116700_03 Caution Risk of damage caused by aggressive vapours and dust Aggressive vapours and dust in the installa tion room may cause corrosion damage to the boiler and to the flue gas installation gt Ensure that the boiler is room sealed if the air in the installation room contains aggressive vapours or dust gt Observe the following when choosing the installation site and operating the boiler Do not install the boiler in rooms prone to frost Do not install the boiler in rooms in which the com bustion air contains chemical substances e g fluoride chlorine sulphur dust etc e g sprays solvents cleaning agents paint adhesives gt Please ensure that the boiler is room sealed or in a sepa rate installation room if the combustion air supply contains the aforemen tioned substances you install the boiler in hairdresser salons painter s or joiner s workshops cleaning businesses or similar gt Do not route the combustion air through an old oil fur nace chimney as this can also cause corrosion 2 5 3 Gas supply An existing gas meter should be checked to ensure that it is capable of passing the rate of gas supply required Installation pipes should be fitted in accordance with BS 6891 in IE in accordance with the current issue of IS 813 Pipework from the meter to th
63. boilerS iese sesse sesse 9 Water Circulation SYSteM esse esse sesse se ee Se Re Se Re 9 Pressure relief valve Venting Description of the appliance Installation ACEESSOFIGS Ek ee eek ee bed ee ek ke i GControllef i tr se ses ai Installation and operation Scope of delivery Unpacking the boiler ese Checking the scope Of deliVer VY sesse sesse ee ee Disposing of the PACKAGING ees sesse se ee Re RE Transporting the appliance uuu Requirements for the installation site Required minimum clearances installation CLEA ANCES dee Re ee n Ede GE Ed ee Ee ek Ese ks 15 Using installation templates esse se see Re Re 15 Dimension drawing and connection measuremenNtS Eess TREE ies BEE Ee REEL SR ERF E EER e ERGER Gee Rg 17 Wall mounting the boiler sesse sesse see ee Re ee 18 Removing fitting the front CASING uiesessesse sesse ses 18 Removing fitting the side panel csessececseeeeeeees 19 51 5 2 61 6 2 6 3 6 4 6 41 6 4 2 6 5 6 6 6 7 7A 7 2 8 1 8 2 8 3 8 4 8 411 8 4 2 8 5 8 5 1 8 5 2 8 6 8 7 91 9 2 10 10 1 10 2 10 2 1 10 2 2 10 2 3 10 2 4 10 2 5 10 2 6 10 2 7 10 2 8 10 2 9 10 210 10 2 11 10 3 10 4 10 5 10 6 10 7 Gas installation sesse se se se se Se ee GR GR GR GR Re Preparing for installation CONNECTING the gas pipe iis sesse se see se Re Re ee Hydraulic installation sees see se see Re Re ee 21 Preparing for installation iese sesse se se see
64. by 46 terminating test program P O1 as described in gt section 10 4 Only for VUW boilers Allow the boiler to cool down by turning off water taps and allow pump overrun to operate for a minimum of two minutes gt Close the gas isolation valve of the boiler Remove the pressure gauge and retighten the sealing screw 1 for the measuring nipple Turn on gas at the gas isolation valve Make sure that there is no leakage at the sealing screw Turn off gas at the gas isolation valve Put the front casing back on Turn off electrical supply to the boiler You must not start up the boiler y VY VY VV y If the gas inlet working pressure is within the permissible range proceed as follows gt Take the boiler out of operation by terminating test program P O1 as described in gt section 10 4 Only for VUW boilers Allow the boiler to cool down by turning off water taps and allow pump overrun to operate for a minimum of two minutes gt Close the gas isolation valve of the boiler Remove the pressure gauge and retighten the sealing screw 1 for the measuring nipple Open the gas isolation valve of the boiler Make sure that there is no leakage at the sealing screw Put the front casing back on Reset boiler controls for normal operation Record the boiler gas inlet working pressure kPa resp mbar in the Benchmark gas boiler commissioning checklist y VY VY VY Natural gas G20
65. cable harness cable casing Fl Return NTC short circuit NTC defective short circuit in cable harness cable casing F12 Short circuit at cylinder charging sensor NTC NTC defective short circuit in cable harness cable casing only in combination with F 91 F13 VU VUW boiler Short circuit warm start sensor NTC defective short circuit in cable harness cable casing cylinder sensor VUW boiler with actoSTOR Short circuit cylinder sensor NTC only in combination with F 91 F 20 Safety switch off temperature limiter Incorrect earth connection between cable harness and boiler 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 to low water pressure in the boiler water pressure sensor defec tive cable to pump or water pressure sensor loose not connected defec tive F 23 Safety switch off Temperature difference too great Pump blocked insufficient pump output air in boiler flow and return NTC interchanged F 24 Safety switch off Temperature rise too fast Pump blocked poor pump performance air in boiler system pressure too low non return valve blocks incorrectly installed F 25 Safety switch off Flue gas temperature too high Break in plug connection for optional flue gas safety thermostat 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
66. chimnari THE MARK OF QUALITY FOR THE INSTALLATI JONING AND SERVICING OF DOMESTIC HEATING AND STEMS SERVICE 1 Date Energy Efficiency Checklist completed SERVICE 2 Date Energy Efficiency Checklist completed Engineer Name Engineer Name Company Name Company Name Telephone Number Telephone Number Engineer ID Number Engineer ID Number Comments Comments Signature SERVICE 3 Date Energy Efficiency Checklist completed Signature SERVICE 4 Date Energy Efficiency Checklist completed Engineer Name Engineer Name Company Name Company Name Telephone Number Telephone Number Engineer ID Number Engineer ID Number Comments Comments Signature Signature SERVICE 5 Date Energy Efficiency Checklist completed SERVICE 6 Date Energy Efficiency Checklist completed Engineer Name Engineer Name Company Name Company Name Telephone Number Telephone Number Engineer ID Number Comments Engineer ID Number Comments Signature Signature SERVICE 7 Date Energy Efficiency Checklist completed SERVICE 8 Date Energy Efficiency Checklist completed Engineer Name Engineer Name Company Name Com
67. ct thermostat burner off 5 X100 R 3 S hah N 3502 24 V DC room thermostat k kp S0 Bus connection pin _ dane 24V OS Controller room th digital 230 V isa aa Auxiliary relay X16 D IBS Selection by D 026 i l l l ET Internal pump N X18 og N eye Ignition Ignition IS No function electrode trans RT i 230 V AC room thermostat former L mm v 7 IN om 29 Mains connection urquoise T mml g i a Appliance earth variant dependent 8 5 Connection diagram for electronics box ecoTEC plus 824 831 34 Installation and maintenance instructions ecoTEC plus 0020116700_03 X51 X22 ER Display Pump PWM signal Connection 8 7 AE ES Gas valve F in 7 Holding magnet 5 gt Ts 3 Xx z X25 11 gt Ca 7 N white 10 Em EE M Stepper motor al ESE 9 gt Mass flow 8 2 sensor af 8 gt T 17 gt 3 M Diverter it x ia valve blue 14 13 5 3 Water pressure gt i 4 sensor X p Impeller A 3 sensor Warm start sensor orange p violet TE red za Flow sensor blue Ea ra Return sensor Safety fuse Hot water sensor NONU UNA ONW N X20 13 pink 2 15 16 4 3 17 gt gt X24 3 EDE coding resi hate 7 Coding resistor gas group GEB Circulation
68. ctions ecoTEC plus 0020116700_03 If the boiler is in error condition you cannot start any test programs You can detect an error condition by the fault symbol shown in the left bottom corner of the display You must first reset 10 5 Preparing the heating water Pay attention to the specifications concerning heating water preparation in gt section 2 5 7 10 6 Read off the filling pressure The boiler is equipped with an analogue pressure gauge gt fig 3 1 and 3 2 and also has a symbolic bar display for the filling pressure of the heating installation and a digital pressure and temperature display You can see the pressure gauge once you have removed the front casing of the boiler Press the right selection button twice to read off the digital filling pressure value 10 7 Filling and purging the heating installation Caution Risk of damage caused by contaminated lines Foreign bodies such as welding remnants sealing residue or dirt in the water lines can cause damage to the boiler gt Flush the heating installation thoroughly prior to commissioning The system is filled via a customer installed filling connec tion which must be attached in a suitable position in the heating circuit This connection must be removed again after the filling process is complete If the local Water Authority regulations do not allow temporary connection a sealed system filler pump with break tank must be used The heating sys
69. d maintenance instructions ecoTEC plus 0020116700_03 69 Code Meaning Cause F 49 eBUS fault Short circuit on eBUS eBUS overload or two power supplies with different polarities on the eBUS F 52 Mass flow sensor connection fault Mass flow sensor not connected disconnected plug not connected or incorrectly connected F 53 Mass flow sensor fault Mass flow sensor faulty filter below venturi filter cap wet or blocked gas flow pressure too low F 54 Gas pressure fault in combination with F 28 F 29 No or too little gas supply pressure gas valve closed F 56 Fault Mass flow sensor regulation Gas valve defective cable harness to gas valve defective F 57 Fault during comfort safety mode Ignition electrode highly corroded F 61 Fault Gas valve regulation Short circuit short to earth in cable harness for the gas valve Gas valve defective coils shorted to earth Electronics defective F 62 Fault Gas valve switch off delay Delayed shutdown of gas valve Delayed extinguishing of flame signal Gas valve leaking Electronics defective F 63 EEPROM error Electronics defective F 64 Electronics NTC fault Supply or return NTC short circuited electronics defective F 65 Electronic temperature fault Electronics overheating due to external influences electronics defective F 67 Electronics flame fault Implausible flame signal electronics defective F 68 Unstable flame signal fault Air in gas gas flow pressure to
70. d the boiler Before commencement of any works the installer should carry out a full risk assessment in accordance with Health and Safety executive regulations The boiler may be installed in any room although particular attention is drawn to the requirements of BS 7671 IEE Reg ulations the electrical provisions of the Building Regula tions Scotland and in IE the current edition of IS 813 and the current ETCI rules in respect of the installation of a boiler in a room containing a bath or shower In case of installation of the boiler in an unusual location special procedures may be necessary and BS 5546 and BS 6798 give detailed guidance on this aspect The boiler must be mounted on a flat vertical wall which must be suf ficiently robust to take the weight of the boiler The boiler may be installed on a combustible wall subject to the requirements of the Local Authorities and Building Regulations A compartment used to enclose the boiler must be designed and constructed specifically for this pur pose An existing cupboard or compartment may be used provided that it is modified for the purpose Details of essential features of cupboard compartment design includ ing airing cupboard installations are given in BS 6891 In IE the current edition of IS 813 If the boiler is to be installed in an airing cupboard it is not required to separate the boiler with a non combustible partition However installation and servicing clearances must
71. de of the gas valve or tighten both of the gas valve cap nuts simultaneously 66 y Open the gas isolator cock on the boiler and ensure there are no leaks gt Check that the sealing ring in the air intake pipe is posi tioned correctly in the seal seat gt Insert the air intake pipe 1 gt fig 12 3 back into the intake stub gt Attach the air intake pipe using the retaining screw 2 fig 12 3 12 4 7 Checking the charge pressure of the expansion vessel N gt 12 12 Checking the charge pressure of the expansion vessel The service valves of the boiler must be closed gt Measure the charge pressure of the expansion vessel at the testing nozzle 1 of the vessel with the boiler depres surised gt Top up the expansion vessel at a pressure of less than 0 75 bar in accordance with the static height of the heat ing installation ideally with nitrogen otherwise with air Ensure drain valve on boiler is open during topping up gt If water escapes from the measuring stub pipes 1 of the expansion vessel you must replace the expansion vessel 12 5 Checking the gas flow pressure gt Check the gas flow pressure section 10 11 4 12 5 1 Checking CO content gt Check the CO content gt section 12 1 3 Installation and maintenance instructions ecoTEC plus 0020116700_03 13 Troubleshooting 13 1 Contact Vaillant Service Solutions 0870 6060 777 gt
72. ded minimum clearances installation clearances Key A 165 mm air flue gas duct 60 100 mm 246 mm air flue gas duct 80 125 mm B 180mm C 5mm optimum approx 50mm 500 mm in front of the boiler to enable easy access for servicing may be provided by an opening door Clearance at the side is not required but the side panels can also be removed if there is adequate side clearance at least approx 50 mm in order to facilitate maintenance or repair work section 4 8 It is not necessary to ensure sufficient clearance between the boiler and combustible materials or components as the temperature of the boiler will always be less than the maxi mum permissible temperature of 85 C due to its nominal heat output 4 4 2 Using installation templates An installation template is supplied with the boiler to aid wall mounting The template shows the following 15 The position of the fixing holes for the hanging bracket The position of the connections The position of the wall breakthrough of the air flue gas duct Position the installation template vertically over the instal lation site gt gt gt 16 Attach the template to the wall using tacks for example Mark the drill holes for the hanging bracket on the wall If necessary mark the position for the wall breakthrough for the air flue gas duct Remove the installation template from the wall Drill 2 holes 10 mm for the hanging bracket in the wall
73. dule gt section 12 4 6 Installation and maintenance instructions ecoTEC plus 0020116700_03 gt Fill and purge the boiler and if necessary the heating installation section 10 7 14 8 Replacing the PCB and or the display Danger Risk of death from electric shock Mains connection terminals L and N remain live even if the continuous voltage on off switch is turned off gt Before carrying out repair work on the boiler switch the boiler off using the on off button gt Disconnect the boiler from the power mains by disconnecting the mains plug or by de energising the boiler via a parti tion with a contact opening of at least 3mm e g fuses or power switches Caution Risk of material damage caused by incor rect repairs Using an incorrect spare part display can cause damage to the electronics gt Before replacing check that the correct spare part display is available gt ONLY fit the correct spare part display Comply with the assembly and installation instructions provided with the spare parts 7 14 8 1 Replacing either the display or the PCB gt Replace the PCB or display according to the assembly and installation instructions supplied anguage Cancel 14 14 Coding resistor If you replace the PCB you must remove the front left coding resistor 1 plug X
74. e Re Re ee 67 Contact Vaillant Service Solutions 0870 GOGO 777 ees ee ee RR Ge ee GR Ge ee RR Gee ee Performing diagnostics sesse ses see eg Call up Live Monitor status codes Status codes Overview esse ese ee Service MESSAGES enrenar iiini Calling up diagnosis levels sesse ee Re RE Reading off the fault codes ae Querying the fault MEMOFY ce sesse se se se se se se Ge Ge ee Reset fault MEMOFY ees see sesse se ee Se Re Se Re RR Overview of fault code see se se se Se ee Ge Ge Ge ee Using the function MENU iese sesse se ee ee Re RE Running test programs ai Resetting parameters to factory settingS 0 71 Replacing components i se sesse sesse ee ee 72 Preparing for and completing replacement work 72 Preparing for replacement work Completing replacement WOFK esse sesse se sesse se see Replacing the burner esse sesse sesse ee ee SR ee Re ee Replacing the fan aa sie Replacing the gas valVe ese sesse sesse se ee Se Re Se Re Replacing the venturi including the mass flow SOMSON EES ER AE ED ED Ee ee 75 Replacing the expansion vessel esse sesse ee 76 Replacing the heat exchanger Replacing the PCB and or the display 77 Replacing either the display or the PCB 0 78 Replacing the PCB and the display at the same ELIMI OS ices ER N 78 De COMMISSIONING ccscsseseseesesescesessseesesseeeceeenees 79 Temporarily shutting down the boiler 79 Tak
75. e Se Re Comfort MOA Eissii cernitis SeSe FEES Ee GE EE Oe N GR EER doeke og Geen Ed RGN eN Eie COMMISSIONING ee sesse se see se ee Se Re Se Re Se Re Se Re Se Re ee ee ee Compact thermal module Es Condensate discharge DiDEWOFK e sesse se se see se ee ee ee Se ee 23 Condensate SIphoOn s sessssessssssessssesesessesesesseseosesesesseseseesss 43 64 Condensing technology sessssesessssesessssesessssesessssesessssessssssesseses 83 Connecting Additional component se sesse see ee Se Re ee ee 30 Auxiliary relay ese ES EG ee doek Re de ed eek ee 30 Cold and NOt water sesse se se se se se Se Ge Ge Ge GR RR RR GR GR GR RR eg 22 Condensate discharge pipework ie wi 23 CONTONE erisin z sd 29 Domestic hot water cylinder see ieee w 22 Flow and retUFN sesse sesse se see ee ee ee Ge Se Ge Ge Ge Ge Ge Ge Ge Ge Ge ee 22 Gas NS ER N N N N Ie Bis ee 20 Multi functional module He ah ral Connection diagraM ae eds a 32 Connection measurements ae an sa 17 CUSTOMER SErVlCe iss eke N ek ee dee dees Ede ee 80 D DIAGNOSIS COdeS ees see ee SR Re ee ee 49 50 51 52 DIA system Disposal tele EE EE EI EE oe Ee 79 88 Packaging Ee gee Es ee ee ee dee ee ee ee ee ees gee 13 Domestic hot water cylinder iessse sesse se se see se ee 22 52 61 Draining BOOP EK Sk ek ee iy Heating installation E US EE EE 83 EXxpansionvessel iss dees de dee eed oe Sk ge ed ed 76 F Ed Geur ee Fault codes
76. e boiler must be of an ade quate size Do not use pipes of a smaller size than the boiler gas con nection The complete installation must be tested and purged in accordance with IGE UP IB for systems up to 0 035 m3 capacity for larger systems IGE UP 1A and for LPG installations refer to BS 5482 1 or IGE UP1 Edition 2 for larger volume installations 2 5 4 Air supply Detailed recommendations for air supply are given in BS 5440 Part 2 It is not necessary to have an air vent in the room or internal space in which the boiler is installed 2 5 5 Compartment ventilation The boilers are very high efficiency appliances As a conse quence the heat loss from the appliance casing during operation is very low Compartment ventilation is required if the flue used is not concentric and air is supplied from the room or compartment the boiler is installed in Installation and maintenance instructions ecoTEC plus 0020116700_03 2 5 6 Electrical supply Danger Risk of death from electric shock If the appliance is not earthed it may hold voltage if a defect occurs gt Earth the appliance A 230 V 50 Hz single phase electricity supply fused to 3 Amp must be provided in accordance with the latest edition of BS 7671 IEE Wiring Regulations and any other local reg ulations that may apply In IE reference should be made to the current edition of the ETCI rules The method of con nection to the mains electricity supp
77. e hot water taps to ensure full flow rate through the boiler Wait at least 5 minutes until the boiler has reached its operating temperature Ensure that all other gas appliances in the property are turned off Measure the gas flow rate at the gas meter Check that the gas flow rate is as stated in gt table 10 2 the measured gas flow rate lies outside the tolerance lim its specified in gt table 10 2 do not operate the boiler and inform the Vaillant Service Solutions 0870 6060 777 If the measured gas flow rate is within the tolerance limits shown in gt table 10 2 then proceed as follows gt gt Take the boiler out of operation by terminating test program P O1 as described in gt section 10 4 Only for VUW boilers Allow the boiler to cool down by turning off water taps and allow pump overrun to operate for a minimum of two minutes Record the boiler maximum gas flow rate onto the Benchmark gas boiler commissioning checklist Gas flow rate as per BS EN 483 nomna net Natural gas in m h Propane in kg h output in kW 12 15 24 1 92 30 2 40 37 2 96 24 2 61 274 2 35 2 02 173 31 330 3 47 297 2 54 218 37 415 4 36 374 320 275 10 2 Gas flow rates 10 11 4 Checking the gas inlet working pressure gt Ensure that the gas inlet working pressure can be obtained with all other gas appliances in the property working Remove the front casing from
78. e more frequently activated because of backflow which causes unnecessary energy loss Vessel volume in 1 Initial system pressure in bar Expansion relief valve setting in MPa bar 0 3 3 0 With system volumes greater than 1001 multiply the volume by the adjacent factor 6 1 Size of an additional expansion vessel 21 6 2 Connecting the hot and cold water 6 4 Connecting the heating flow and heating VUW boiler return 6 4 1 VUW boiler 6 1 Fitting the hot and cold water connection gt Make the domestic hot and cold water connections as 6 2 Fitting the heating flow and heating return VUW boiler shown gt Ensure correct water pressure and flow requirements gt Make the water connections as shown and that any expansion can be accommodated with the cold supply pipe work gt section 2 5 7 6 4 2 VU boiler 6 3 Connecting the domestic hot water cylinder gt When connecting the domestic hot water cylinder to the ecoTEC plus follow the installation instructions for the domestic hot water cylinder 6 3 Fitting the heating flow and heating return VU boiler gt Make the water connections as shown 22 Installation and maintenance instructions ecoTEC plus 0020116700_03 6 5 Low loss header A low loss header disconnects the boiler from the heating system The system is no longer dependent on the remain ing feed head of the boiler In conjunction with the boiler
79. elief valve minimum mm 15 Condensate discharge pipework minimum mm 19 60 100 concentric optional 80 125 concentric Gas connection pressure gas inlet working pressure natural gas G20 kPa mbar 0 20 20 Gas connection pressure gas inlet working pressure propane G31 Gas flow rate at 15 C and 1013 mbar based on hot water generation if applicable G20 G31 Flue gas mass flow min max Flue gas temperature min max Certificated flue gas connections NOx class NOx kPa mbar 0 37 37 m h 2 6 3 3 41 kg h 1 924 2 42 3 05 1 8 1 1 2 4 14 0 3 0 17 6 40 70 C13 C33 C43 C53 C83 C93 B53P o O mg kWh 217 27 4 SEDBUK 2005 SEDBUK 2009 G20 G31 89 1 89 3 90 3 89 3 Boiler dimensions H x W x D mm 720 x 440 x 335 720 x 440 x 369 Mounting weight approx kg 36 38 41 Electrical connection V Hz 230 50 Built in fuse 2 A slow blow Electrical power consumption min max W 80 105 70 105 100 130 Electrical power consumption at 30 partial load WwW 45 50 50 Standby electrical consumption W lt 2 lt 2 lt 3 3 Level of protection IP X4D Certification number CE 0085CM0320 17 2 Technical data for ecoTEC plus VUW boiler 82 Installation and maintenance instructions ecoTEC plus OO20116700 03 18 Glossary Air flue gas duct An air flue gas duct is a line system with two separate flow channels The flue gas is routed into separate chambers at t
80. emove the gas connecting pipe 1 gt fig 14 10 from the venturi 2 gt fig 14 10 by detaching the clamp 3 gt fig 14 10 and pulling out the gas connecting pipe vertically Dispose of the seal 6 gt fig 14 10 Pull off the gas restrictor 5 gt fig 14 10 in a straight direction and dispose of it Check whether the venturi is free of residue at the gas inlet side y y Danger Risk of poisoning due to increased CO levels Using the wrong gas restrictor size can cause higher CO levels gt When replacing the venturi ensure that you use the correct gas restrictor colour coding and position of pins on the under side of the gas restrictor gt Insert the gas restrictor for the gas group in question into the new venturi Ensure that the colour of the gas restrictor corresponds with the colour of the coding resistor on the PCB in the electronics box When inserting the gas restrictor ensure that the gas restrictor is correctly aligned using the specified position marks on the top of the venturi and also the positioning pins 4 on the bottom of the gas restrictor Installation and maintenance instructions ecoTEC plus 0020116700_03 75 Caution Risk of damage to boiler and possible malfunctions The use of lubricant can block function related channels in the venturi gt Never use lubricant when installing the gas restrictor 14 7 Replacing the heat exchanger Caution Risk o
81. enance intervals 57 General inspection and maintenance INStructION SEE es IE Oe ee EG Se EE ese Reese Safety instructions Checking the CO CO ratio and the CO concentrati Meiate E 58 Adjusting the CO concentration or the air ratio 59 Performing the gas family Ch CkK sssessessseesesssseseses 60 Inspection and maintenance work steps Filling the boiler and the heating installation 62 Draining the Boiler oe eeeseseseesesescesesescseeseeeeeeseees 62 Draining the entire heating installation 62 Using the function menu Carrying out electronics Self teSts uses sesse sees 62 Carrying out maintenance WOFK ccsceseececeseeeeeeees 62 Removing the compact thermal module sesse 62 Cleaning the heat exchange esse sesse se ee RE Checking the burner ese sesse sesse Cleaning the condensate siphon Clean the filter in the cold water inlet VUW boilers Only sesse se see se ee Re Re GR ee RE Installing the compact thermal module Checking the charge pressure of the expansion VESSEL EDE ee Ee Ee EG ee Gee be eg ee 66 12 5 12 5 1 13 13 1 13 2 13 2 1 13 2 2 13 2 3 13 2 4 13 2 5 13 2 6 13 2 7 13 2 8 13 3 13 4 13 5 14 141 1411 1412 14 2 14 3 14 4 14 5 14 6 14 7 14 8 14 811 14 8 2 15 15 1 15 2 15 3 16 16 1 16 2 17 18 Checking the gas floW pressure esse sesse sesse ee 66 Checking CO content sesse ese see Se Re Re ee 66 Troubleshooting e esse sesse ee e
82. enu point Menu gt Installer level gt Appliance configuration All of the settings for more complex systems can be found in the diagnosis menu Menu gt Installer level gt Diagnosis menu 11 1 Diagnosis codes Overview Menu gt Installer level gt Diagnosis menu With the use of the parameters that are marked as adjusta ble in gt table 11 1 you can adapt the boiler to the heating installation and the needs of the customer You can enter your settings in the last column after setting the system specific parameters gt Press the minus button or the plus button to switch between the displayed diagnosis codes With modifiable parameters gt Press the right selection button Selection to select the parameter to make a change gt Press the minus button or the plus button to change the current setting gt Press the right selection button Ok to confirm the change The change is saved Installation and maintenance instructions ecoTEC plus 0020116700_03 11 1 Diagnosis codes 50 Code Parameters Adjustable values Facto ry oun own setting setting D OOO Heating partial load Adjustable heating partial load in KW Auto Auto Boiler automatically adjusts max partial load to cur rent system demand D 001 Overrun time of internal pump for 1 60 min 5 min heating mode D OO2 Max burner anti cycling time heating 20 min at 20 C flow tem
83. er household devices such as showers Vaillant cannot accept responsibility for damage caused to the boiler or its surroundings where an appliance has been fitted to sup plies with mechanical back flow prevention In these cases the requirement would be that a competent installer cor rectly installs a suitable shock arrestor mini expansion vessel adjacent to the boiler in the cold water supply pipe 2 5 8 Water circulation system Detailed recommendations concerning the water circuit sys tem can be taken from BS 6798 and BS 5449 Part1 for Small Bore and Micro Bore central heating installa tions Lines which do not form part of the usable heating surface should be insulated to prevent heat losses and pos sible freezing up especially where the lines run under rooves and ventilated cellar rooms The drain connections must be easily accessible so that the entire system includ ing the boiler and hot water system can be drained The drain connections should be at least 1 2 BSP nominal size and must be in accordance with BS 2879 The boiler is suitable for Minibore and Microbore systems Water lines are to be copper pipes in accordance with BS 2871 Part1 These must be thoroughly cleaned espe cially when connecting a new boiler to an existing system Risk of damage if the heating water is treated with unsuitable frost or corrosion protection agents Frost and corrosion protection agents can cause changes to seals noise d
84. erse order Always use new seals vVvvvvyvy y Y 12 4 6 Installing the compact thermal module Danger Risk of death and risk of damage caused by hot flue gas If you do not renew the seal and the self locking nuts on the burner door hot flue gases may escape and cause personal injury and material damage gt Replace the seal each time you open the burner door gt Replace the self securing nuts each time you open the burner door gt If the burner flange insulation on the module shows signs of damage other than small cracks it must be replaced article number 193 595 65 gt Attach the compact thermal module 2 gt fig 12 10 to the heat exchanger 1 gt fig 12 10 Tighten the four nuts 9 gt fig 12 10 crosswise until the burner door fits closely and uniformly onto the mating surfaces If a torque spanner is available set at 6 Nm Attach the plug of the ignition line 7 gt fig 12 10 and the ground connection 8 gt fig 12 10 to the ignition electrode Attach the plug 4 gt fig 12 10 to the fan motor Attach the three plugs to the gas valve 5 gt fig 12 10 Attach the cable to the venturi 3 gt fig 12 10 12 11 Tightening the cap nuts on the gas valve gt Connect the gas supply 6 gt fig 12 10 to the gas valve with a new seal When the cap nuts are being screwed to the gas valve counterhold the opposite si
85. es groupservice co uk 14 1 Preparing for and completing replacement work 14 11 Preparing for replacement work Danger Risk of death from electric shock Mains connection terminals L and N remain live even if the continuous voltage on off switch is turned off gt Before carrying out maintenance work on the boiler switch the boiler off using the on off button gt Disconnect the boiler from the power mains by disconnecting the mains plug or by de energising the boiler via a parti tion with a contact opening of at least 3mm e g fuses or power switches When carrying out any repair to the boiler make sure that you observe the following instructions for your own safety and to avoid material dam age to the boiler gt Switch off the boiler gt Disconnect the boiler from the power mains gt section 11 3 gt Remove the front casing section 4 7 gt Close the gas isolator cock gt Close the service valves in the heating flow and in the heating return gt Close the service valve in the cold water supply pipe gt Drain the boiler if you want to replace components that carry water 2 section 11 3 2 gt Make sure that water does not drip on live components e g the electronics box gt Use only new Seals and O rings 72 14 1 2 Completing replacement work gt Perform a gas family check after working on the gas route 2 section 12 1 5 Caution Malfunction or shortened life
86. esseeneees Switching on the boilef ssesessssesessssesessssesessssesessssese Installation assistant Language Filling mode PUP GING RE EE EE EG EE Target feed temperature sesse se se see Re se Re ee Hot water temperature Comfort mode 2a Heating partial load sesse se sesse se ese ee ee SR ee eg Auxiliary relay and multi functional module 40 Competent person telephone number sees Terminating the installation assistant Restarting the installation assistant sesse Appliance configuration and diagnosis menu 40 Using test DrOOraMS esse sesse sesse se Re ee ee Re ee 40 Preparing the heating water sessssesessssesessssesessssese 41 Read off the filling pressure dese Filling and purging the heating installation 41 Installation and maintenance instructions ecoTEC plus 0020116700_03 10 71 10 7 2 10 7 3 10 8 10 8 1 10 9 10 10 10 11 10 111 10 11 2 10 1 3 10 11 4 10 12 10 12 1 10 12 2 10 12 3 10 13 11 11 1 11 1 1 11 1 2 11 1 3 11 1 4 11 1 5 11 1 6 11 1 7 118 11 2 12 124 1244 12 1 2 12 1 3 12 1 4 121 5 12 2 12 21 12 2 2 12 2 3 12 3 12 3 1 12 4 12 41 12 4 2 12 4 3 12 4 4 12 4 5 12 4 6 12 4 7 Installation and maintenance instructions ecoTEC plus 0020116700_03 Filling the heating installation sesse sesse ee 42 Purging the heating system esse sesse se ee RR 42 Flushing the system for the first time cold 42
87. f damage to the heat exchanger gt You can neither loosen nor tighten the four screws gt fig 14 13 pos 1 gt Refit the components in the reverse order Use new Seals gt After installing the new venturi perform a gas family check gt section 12 1 5 and a gas ratio setting gt section 10 11 14 6 Replacing the expansion vessel gt Drain the boiler gt section 12 2 2 gt Slacken the screw connection 4 at the water connec tion on the underside of the expansion vessel Remove both screws 1 on the support plate 2 Remove the support plate 2 Pull out the expansion vessel 3 from the front Insert the new expansion vessel into the boiler VY VY VY Use a new seal for this Attach the support plate using both screws 1 gt If necessary adjust the pressure to the static height of the heating installation section 12 4 7 gt Fill and purge the boiler and the system if necessary y after installing the new expansion vessel 2 section 10 7 gt On completion of the work check for water leaks 76 Screw the new expansion vessel to the water connection gt Drain the boiler gt section 12 2 2 gt Remove the compact thermal module gt section 12 4 1 gt Detach the condensate drain hose from the heat exchanger 14 12 Replacing the heat exchanger gt Detach the clamps 2 gt fig 14 12 and 3 gt fig 14 12 from the flow connect
88. fe lifting techniques are used keep back straight bend using legs gt Keep load as close to body as possible gt If 2 persons performing lift ensure co ordinated move ments during lift gt Always use assistance if required Carriage of carton from point of delivery to point of installation ground floor Recommend 2 person lift or 1 person with use of sack truck gt If1person is performing lift straddle the load tilt and place carton into position on truck gt Recommend secure appliance onto truck with suitable straps gt Ensure safe lifting techniques are used keep back straight bend using legs gt Keep load as close to body as possible gt If 2 persons performing lift ensure co ordinated move ments during lift gt Clear the route before attempting the lift If removing boiler from truck straddle the load and tilt forwards to facilitate secure grip Ensure safe lifting technigues are used keep back straight bend using legs Do not twist reposition feet instead Take care to avoid trip hazards slippery or wet surfaces and climbing steps and stairs Always use assistance if required Carriage of carton from point of delivery to point of installation first or higher floor cellar Recommend 2 person lift or 1 person with use of sack truck gt If 1 person is performing lift straddle the load tilt and place carton into position on truck Recommend secure appliance onto truck
89. for a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs If you install the boiler in safety area 2 it can only be operated if it is room sealed Installation method B53P is not permitted in this case Please pay attention to the latest edition of the IEE Wiring Regulations BS7671 Requirements for Electrical Installation In IE reference should be made to the current edition of the ETCI Electro Technical Council for Ireland rules The boiler is supplied for connection to 230 V 50Hz sup ply fused at 3A rating Connection to the mains supply shall be made via a fused 3 pin plug to an unswitched shuttered socket both complying with the requirements of BS 1363 Alternatively connection may be made via a 3 A fused double pole isolator having a contact opening of at least 3mm in all poles and supplying the boiler and controllers only The point of connection to the mains supply must allow complete electrical isolation of the boiler and its ancil lary controllers It should be readily accessible and adjacent to the boiler A flexible cord fulfilling BS6500 or compara ble standard conductor diameter between 0 75 and 1 5 mm and an allowed temperature range including 90 C should be used The nominal voltage of the mains must be 230 V at mains voltages greater than 253 V and less than 190 V the func tions may be impaired gt Open the electronics box gt section 8 2
90. g installation gt The filling pressure of the heating installation must not fall below 0 08 MPa 0 8 bar when purging is in progress as otherwise this will not be carried out properly The test program P OO runs for 7 5 minutes per circuit At the end of the filling procedure the filling pressure of the heating installation should be at least 0 02 MPa 0 2 bar above the counterpressure of the expansion vessel Pinstallation 2 PExp 0 02 MPa 0 2 bar gt If there is still too much air in the heating installation at the end of test program P OO repeat the test program gt Check all connections for leaks 10 7 3 Flushing the system for the first time cold gt Check whether all thermostatic radiator valves and both service valves on the boiler are open gt Connect a hose to the drain valve that is located at the lowest position in the heating system gt Open the drain cocks and all the purging valves on the radiators so that the water flows quickly and completely out of the heating system and the boiler in order to remove the contamination caused during installation out of the heating system before the boiler is started up gt Close the drain cocks The entire heating system must be flushed through completely at least twice once cold and once hot in accordance with the following instructions Installation and maintenance instructions ecoTEC plus 0020116700_03 gt Refill the heating system with water
91. g the on off switch Fill the heating circuit of the boiler to a pressure of between 0 1 and 0 2 MPa 1 0 and 2 0 bar if required If you have topped up with water purge the heating installation using test program P OO gt section 10 7 2 Open the gas isolation valve Check the boiler for gas and water leaks Replace the front casing to the boiler section 4 7 If you have worked on the gas route carry out a gas family check gt section 12 1 5 gt Carry out a functional check of the boiler section 10 12 gt Always check earth continuity polarity and resistance to earth with a multimeter after any service work and after replacing any electrical component gt If necessary refill and re purge the heating installation gt Complete the benchmark gas boiler commissioning serv ice record on the back pages of these instructions y Yyyy yvy VY VY yY 12 1 3 Checking the CO CO ratio and the CO concentration Danger Danger of explosion fire or poisoning caused by incorrect flue gas value adjustment Safe combustion can only be verified by measuring CO CO ratio gt Make sure that the CO CO ratio does not exceed the value shown in table 1241 Checking adjustment of the CO2 concentration is required in the following instances replacement of gas valve conversion to or from Natural Gas LPG or if an incorrect combustion is suspected Installation and maintenance instructions
92. gt Place the front casing on the upper brackets gt Push the front casing onto the boiler so that until both retaining clips 2 snap into place at the front casing gt Fasten the front casing by screwing in the bolt 1 on the underside of the boiler Installation and maintenance instructions ecoTEC plus 0020116700_03 4 8 Removing fitting the side panel gt Unscrew the two screws 2 from the top and bottom of the side panel You can also remove a side panel for installation or mainte gt Hold onto the side panel 3 when doing this nance purposes gt Swivel the side panel outwards and remove it from below by pulling it downwards 4 Caution gt Install the side panel in reverse order Risk of damage caused by mechanical tension Removing both side panels may cause mechanical distortion in the boiler which can cause damage to the piping and poten tially result in leaks gt Always only remove one side panel never both side panels at the same time 4 7 Removing fitting the side panel Caution Risk of damage to the side panel Unscrewed side panels that are merely sus pended from the back wall can fall down gt Hold onto the side panel when you are unscrewing it and always remove it from the boiler gt Fold the electronics box 1 forwards Installation and maintenance instructions ecoTEC plus 0020116700_03 19 5 Gas installation The work described in th
93. he coding resistor on the PCB does not match the entered gas family see also F 92 13 1 Status codes 67 Display Meaning S 62 Gas family check unsuccessful CO CO values at limit Check combustion S 63 Gas family check unsuccessful Combustion quality out side permissible range see also F 93 S 76 System pressure too low top up water S 96 Return temperature sensor test running heating demands are blocked S 97 Water pressure sensor test running heating demands are blocked S 98 Flow return temperature sensor test running heating demands are blocked 13 1 Status codes continuation 13 2 3 Service messages If the open end spanner maintenance symbol appears on the display a service message is present The mainte nance symbol appears if you have set a maintenance inter val for example gt section 11 1 6 and it has elapsed The boiler is not in fault mode but continues to operate To obtain more information about the service message gt Call up the Live Monitor section 13 2 1 If status code S 40 is displayed as well as the maintenance symbol the boiler is in comfort protection mode This means that the boiler continues to operate with restricted comfort after it has detected a fault e g because of a severe storm gt In this case read out the fault memory in order to deter mine whether a boiler component is defective gt section 13 2 5 If no fault message
94. he same time as the required combustion air is pumped to the boiler The air flue gas duct can be designed as a con centric or adjacent double flue gas line the exhaust gas channel is sealed from the air channel Floor standing boil ers and gas fired wall hung boilers can be operated inde pendent of room air through the air flue gas duct As a result boilers can be installed in new buildings that do not offer sufficient combustion air for open flued heat genera tors due to their airtight construction Burner anti cycling time The burner is electronically locked for a specific time after each time it is switched off restart interlock to avoid fre quent switching on and off of the burner energy losses and to extend the working life of the boiler The burner anti cycling time is only activated for the heat ing mode Hot water handling is not affected if burner anti cycling time is running Calorific value Unlike the heating value the calorific value of a fuel describes the total useable heat during combustion based on the quantity of fuel used including the condensation heat in the steam The energy contained in steam can also be used if the steam liquefies on cooling Compact thermal module The compact thermal module is an assembly of Vaillant condensing units that consists of the following five main components in the ecoTEC plus speed regulated fan gas valve including support plate venturi including gas supply pipe
95. he valve with the spring clip 2 gt To fill first open the stop valve 3 gt Open the stop valve 4 so that the water flows into the heating system Fill the heating system as described in gt section 10 7 gt After filling close both stop valves and disconnect the filling device by pulling the double non return valve from the cold water stop valve 10 9 Both stop valves must be closed during the operation of the heating system and the filling line must be removed from the double non return valve again Fill and purge the hot water system gt Open the cold water stop valve on the boiler only for VUW boilers gt Fill the hot water system by opening all the hot water draw off points until water comes out As soon as water comes out of all the hot water draw off points the hot water circuit is filled completely and also purged 10 10 Filling the condensate siphon Danger Risk of poisoning from escaping flue gas An empty or insufficiently filled condensate siphon may allow flue gas to escape into the room air gt Fill the condensate siphon with water before starting up the boiler 43 10 4 Filling the condensate siphon gt Remove the lower part 1 of the condensate siphon by turning the bayonet fitting anti clockwise gt Fill the lower section with water until about 10 mm below the upper edge gt Re attach the lower section to the condensate siphon 10 11 Checking the ga
96. ic shock The supply terminals of the boiler are under mains voltage even if the boiler main switch is off gt Don t touch the supply terminals gt Protect the electronic box from any water or spray gt Before working on the boiler turn off the power and secure against restart If it is necessary to keep the electricity to the boiler switched on for certain inspection and maintenance this is indicated in the description of the maintenance task Always perform the following steps prior to inspection or maintenance work gt Switch off the main switch gt Disconnect the boiler from the power mains by disconnecting the mains plug or 58 de energising the boiler via an isolating device with a contact opening of at least 3mm e g fuses or power switches Further check for electrical isolation of the appliance by use of a test meter Close the gas isolation valve Close the service valves in the heating flow and return Remove the front casing from the boiler When removing any water carrying components ensure that water is kept away from all electrical components y VY VY VV Always perform the following steps after performing any inspection or maintenance work gt Always use new seals and O rings when parts are replaced Open the service valves in the heating flow and return Open the cold water stop valve if necessary Reconnect the boiler to the power mains Switch on the boiler usin
97. ies the control related linking of different system components within a heating installation It provides particular flexibility for ret rofitting and expanding the system This simplifies the installation of boiler cascades or the subsequent addition of components such as solar hot water generation The eBUS provides extended facilities for connecting con trollers Multi functional module The multi functional module is an accessory that controls additional functions or components in combination with Vaillant boilers with eBUS electronics It also allows you to select and control 2 in 7 e g circulation pump external heating pump external solenoid valve or response from the flue non return flap 83 19 Appendix Installation Commissioning and Service Record DCNCHINIGT COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS 84 Installation and maintenance instructions ecoTEC plus 0020116700_03 Er are Re oa ease affix the label Ed This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference Failure to install and commission this equipment to the manufacturer s instructions will invalidate the warranty but does not affect statutory rights Customer Name
98. ing the boiler permanently out of service 79 Disposing of the boiler esse sesse ee Se Re Re 79 Guarantee and customer service 80 Factory guarantee iese sesse sesse se Re ee ee ee ee ee 80 ETIES eN SR cosets cascaestsasconscsctzeeatantzesstesszers 80 Technical data ee ee ee ee Ge ee ee Ge 81 Glossar Vi Mes seed Ee ee Ee Ee Eg 83 AppendiX ee EE Ge RE oe EE DE ee 84 Benchmark Log BOOK sesse se ee se ee ee 85 EC declaration of conformity 87 ME race Ea aca ED once Ne 88 3 1 Notes on the documentation The following instructions are intended to guide you throughout the entire documentation Further documents apply in combination with these installation and mainte nance instructions We accept no liability for any damage caused by non observance of these instructions Other applicable documents gt Follow all installation instructions for the various parts and components of the system without exception when installing the ecoTEC plus These installation instructions are enclosed with the various system components as well as additional components gt Also observe all the operating instructions included with the system components 1 1 Storing documents gt Pass these installation instructions and all other applica ble documents and if necessary any required aids to the system operator The operator will store the instructions and aids so that they are available when required 1 2 Symbols used The symbo
99. into the dwelling Vertically from a terminal on the same wall Horizontally from a terminal on the same wall From the wall on which the terminal is mounted From a vertical structure on the roof Above intersection with roof Horizontally to a window or opening on pitched or flat roofs Above a window or opening on pitched or flat roofs Below a window or opening on pitched or flat roofs 71 Position of the termination in a fan assisted air flue gas duct BS 5440 1 It is recommended that the fanned flue terminal should be positioned as follows a at least 2 m from an opening in the building directly opposite and b so that the products of combustion are not straightly directed to discharge across a boundary 1 Dimensions D E F and G These clearances may be reduced to 25mm without affecting the performance of the boiler In order to ensure that the condensate plume does not affect adjacent surfaces the terminal should be extended as shown in gt fig 7 6 2 Dimension H This clearance may be reduced to 25mm without affecting the performance of the boiler However in order to ensure that the condensate plume does not affect adjacent surfaces a clearance of 300 mm is pre ferred For IE recommendations are given in the cur rent edition of IS 813 For 1 and 2 above you can use the Variable Termination Kit to move the termination point away from the building fab ric Article numbers 0020060584
100. ion and the return connection gt Detach the flow connection from the heat exchanger gt Detach the return connection from the heat exchanger gt Remove two screws 1 gt fig 14 12 from each of the two brackets of the heat exchanger Installation and maintenance instructions ecoTEC plus 0020116700_03 14 13 Heat exchanger brackets gt Disconnect the plug connection 2 gt fig 14 13 of the thermal fuse in the heat exchanger gt Remove the bottom three screws 3 gt fig 14 13 from the rear part of the heat exchanger bracket gt Swivel the bracket around the top screw 1 gt fig 14 13 to one side gt Pull the heat exchanger downwards and to the right and remove it from the boiler Caution Risk of damage to the boiler Mineral oil based lubricants may damage the seals The seals should therefore not be lubricated gt Only use water or commercially available soft soap if necessary to assist with installation With the new heat exchanger ensure that you use the cable with the coding resistor and the correct plug gt Install the new heat exchanger in the reverse order gt Replace the seals gt 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 gt Re install the expansion vessel 2 section 14 6 gt Reinstall the compact thermal mo
101. is present the boiler will automatically switch back to normal operation after a certain time Com fort safety mode may then have been triggered by a severe storm for example 13 2 4 Calling up diagnosis levels Menu gt Installer level gt Diagnosis menu You can use the diagnosis menu to inspect parameters and modify certain parameters An overview of the diagnosis codes can be found in gt table 11 1 13 2 5 Reading off the fault codes If a fault develops in the boiler the display shows a fault code F xx A plain text display explains the displayed fault code Example F 10 Flow temperature sensor short circuit 68 Fault codes have priority over all other displays If a fault occurs the display no longer shows the current heating flow temperature of the heating installation If multiple faults occur at the same time the display shows the corresponding fault codes for two seconds each in sequence gt Remedy the fault gt To restart the boiler press the reset button Operating instructions gt If you are unable to remedy the fault and the fault reoc curs despite having carried out several resets contact Vaillant customer service Vaillant Service Solutions 0870 6060 777 13 2 6 Querying the fault memory Menu gt Installer level gt Fault list The boiler has a fault memory Here you can query the last ten faults that occurred in chronological order The display shows the number of fault
102. is section must only be carried out by a competent person 5 1 Preparing for installation Danger Risk of death from incorrectly installed gas system An incorrect gas installation can result in leaks and an explosion gt During installation the legal directives and the local regulations for gas supply companies must be observed Danger Risk of death from incorrectly installed gas system Tension in the gas line can result in leaks or an explosion gt Make sure there are no stresses in the gas lines when it is installed gt Caution Risk of damage caused by incorrect gas installation Excess test pressure or operating pressure can cause damage to the gas valve gt When the entire gas installation is tested for leaks the maximum pressure at the gas valve must not exceed 0 75 kPa 75 mbar Caution Risk of damage caused by contaminated lines Foreign bodies such as welding remnants sealing residue or dirt in the connection lines for gas can cause damage to the boiler gt Blow the gas line clean prior to installa tion Caution Risk of damage caused by using the wrong gas type Using the wrong gas type can cause a fault shutdown on the boiler Furthermore igni tion and combustion noise may occur in the boiler gt Only use propane gas for propane fired boilers in accordance with BS 4250 Part 1 1987 20 5 2 Connecting the gas pipe 5
103. itable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance Positioning of Appliance for Final Installation within compartment etc restricting installation gt If appliance weight is over 25 kg always use 2 persons to move where practical gt Fit bracket securely onto wall before lifting appliance into position gt Obtain firm grip on front and sides of appliance lift upwards onto worktop if practicable gt Ensure stable balance achieved and lift upwards to drop into place onto bracket gt If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler gt Ensure coordinated movements during 2 person lifts to ensure equal spread of weight of load gt If1person positioning onto bracket recommend obtain firm grip supporting base of boiler gt Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level gt Do not twist reposition feet instead gt Keep boiler as close as possible to body throughout lift to minimise strain on back gt Always use assistance if required gt Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance Positioning of Appliance for Final Installation in roof space restricting installation gt If appliance weight is over 25 kg always use 2 persons to move
104. ittently operating pump D O19 Operating mode of 2 stage pump Setting for operating mode of 2 stage pump 2 O Burner operation stage 2 Flow overrun stage 1 1 Heating Overrun stage 1 Hot water stage 2 2 Like 1 but rotational speed during heating mode depending on heating partial load 3 always stage 2 4 Rotational speed during heating mode depending on heating partial load otherwise always stage 1 D O20 Max setting for cylinder target value Setting range 50 C 70 C actoSTOR 65 C 65 C D 022 Hot water requirement via C1 C2 On Off Not impeller or APC adjustable D 023 Summer winter operating mode Heating on heating off summer mode Not heating on off adjustable D O25 Hot water generation enabled by On Off Not eBUS controller adjustable Installation and maintenance instructions ecoTEC plus 0020116700_03 Code Parameters Adjustable values Facto TY Koun own setting setting D O26 Auxiliary relay control Circulation pump External External pump pump Cylinder charging pump Extractor hood External solenoid valve External fault message Solar pump not active eBUS remote control not active Legionella protection pump not active Solar valve not active D O27 Switching of relay 1 on the 2 in 7 multi Circulation pump functional module VR 40 External pump Cylinder charging pump Extractor hood External solenoid valve External fault message
105. ixteenth num bers constitute the article number The serial number can also be found on the lift out badge located behind the front flap at the bottom of the boiler The serial number can also be shown on the display of the boiler gt Operating instructions 1 5 C Directive 2009 142 EEC of the Commission with amend ments Directive for Harmonisation of Legal Regulations of the Member States for Gas Cosumption Appliances Gas equipment directive Directive 92 42 EEC of the Commission with amend ments Directive Concerning the Efficiency of New Hot Water Heating Boilers Fired by Liquid or Gaseous Fuels Efficiency directive CE label The CE label shows that the boilers comply with the basic requirements of the applicable directives as stated on the identification plate Installation and maintenance instructions ecoTEC plus 0020116700_03 Directive 2006 95 EC of the Council with amendments Directive Concerning Electrical Equipment for Use Within Specific Voltage Limits Low voltage directive Directive 2004 108 EC of the Council with amendments Directive Concerning Electromagnetic Compatibility The boilers comply with the type sample described in the EC Type Sample Test Approval PIN No CE O085CM320 The boilers comply with the following standards EN 483 EN 625 EN 677 EN 55014 EN 60335 1 EN 60335 2 102 EN 61000 3 2 EN 61000 3 3 1 6 Benchmark Vaillant Ltd supports the Be
106. k act and ensure safety of themselves and others with regard to manual handling and working at height requirements Attention shall be paid to but not restricted to the follow ing Gas Safety Installation and Use regulations All Building Regulations 2000 for England and Wales as amended Includes Approved Codes of Practice and Approved Doc uments for building regulations e g L1 L1A L1B L8 The Building Standards Scotland and any requirements determined by the local authorities within The current Version of S 813 Domestic Gas Installa tions and the current Building Regulations for IE The current ETCI Regulations for installing electrical equipment for IE BS 7671 Requirements for electrical installations IEE Wiring Regulations The Electricity at Work Regulations The Water supply water fittings regulations 1999 BS 5854 Code of practice for flues and flue structures in buildings BS EN 12828 Design of water based heating systems BS EN 806 parts 1 5 BS 8558 BS 6880 Code of practice for low temperature heating systems with outputs greater than 45 KW Part 1 Fundamental and design considerations Part 2 Selection of equipment Part 3 Installation commissioning and maintenance BS 6981 Installation of low pressure gas pipework of up to 35mm in domestic premises BS 4814 Specification for Expansion vessels using an internal diaphragm for sealed hot water and hea
107. l part 2 38 Installation and maintenance instructions ecoTEC plus 0020116700_03 10 Commissioning At the time of commissioning complete all relevant sec tions of the benchmark checklist found within the back pages of this document Ensure that the filling and purging programs P O6 and P OO have been allowed to run fully before the boiler is ignited for the first time Danger Risk of poisoning and burns caused by escaping hot flue gas Hot flue gas can escape and cause poison ing and burns if the boiler is operated with an incompletely mounted or open air flue gas duct or if the boiler is operated with internal leaks with the front casing open gt Operate the boiler for commissioning for testing purposes in continuous operation only when the front casing is fitted and closed and the air flue gas duct is com pletely mounted gt Exclusively for test purposes such as gas working pressure testing the boiler may be operated with the front casing removed for short durations ONLY but must have a completely mounted air flue gas duct The automatic air vent cap must be loosened before filling the heating circuit or recharging circuit and during operation Purge the heating circuit and the recharging cir cuit using the purging program P OO gt section 10 4 Auxiliary service equipment The following test and measuring equipment is required for commissioning CO measuring instrument Digital or U tube m
108. lation if required Explain to the operator how to correctly set the tempera tures the controllers and the thermostatic radiator valves economically Complete and sign off the Benchmark commissioning check list Complete and sign off the guarantee documentation Installation and maintenance instructions ecoTEC plus 0020116700_03 12 Inspection and maintenance After servicing complete the relevant Service Record sec tion of the Benchmark Checklist located on the inside back pages of this document 12 1 Inspection and maintenance intervals Danger Risk of injury and risk of damage to prop erty due to neglected inspection and maintenance Neglected inspection and maintenance works or not observing the stated inspec tion and maintenance intervals can inter fere with the operational safety of the boiler and can result in damage to property and to persons gt Point out to the operator that he must observe the demanded inspection and maintenance intervals as a minimum gt Carry out proper regular inspections once a year gt Carry out regular maintenance as dic tated by findings during the inspection process Danger Danger of life and limb due to improper inspection maintenance Inspections Maintenance work carried out improperly can result in leakages and explo sion gt The boiler may only be inspected main tained by a competent person All service work must be carried out by
109. ler The Vaillant ecoTEC plus boiler consists primarily of materi als that can be recycled The boiler and its accessories must not be disposed of with household waste gt Make sure that the boiler and any existing accessories are disposed of properly 79 16 Guarantee and customer service 16 1 Factory guarantee Two year guarantee for ecoTEC plus appliances Vaillant undertakes to rectify any manufacturing defect that occurs within twenty four months of the installation date For the 2nd year of the guarantee to be valid an annual service must be carried out by a competent person approved at the time by the Health and Safety Executive one year after installation The cost of this annual service is not included in the guar antee Registering with us Registration is simple Just complete the Guarantee Regis tration Card and return to Vaillant within 30 days of instal lation Your details will then be automatically registered within the Vaillant scheme Note No receipt will be issued Immediate help If your Vaillant boiler develops a fault your first action should be to contact your installer as his professional assessment is needed under the terms of our Guarantee If you are unable to contact your installer phone Vaillant Service Solutions 0870 6060 777 16 2 Vaillant Service To ensure regular servicing it is strongly recommended that arrangements are made for a Maintenance Agreement Please contact Vaillant Se
110. ler level and then access it again within 15 minutes you do not have to enter the code again 36 Installation and maintenance instructions ecoTEC plus 0020116700_03 9 2 Overview of the menu structure Information Reset burner off time Installer level Interruption Flow sensor Installer level Fault list Test programmes Test programmes Appliance config Function menu Gas type check Test programmes Function menu Gas type check EET Self test Electronics Gas type check Self diagnosis Function menu of the electronics Installer level Test programmes Language Target EE temp DHW temperature Diagnosis menu Appliance config Target flow temp Language DHW temperature Appliance config DHW temperature Language Target flow temp DHW temperature Cancel 9 1 Overview of the menu structure for installer level part 1 Installation and maintenance instructions ecoTEC plus 0020116700_03 Comfort operation Target flow temp DHW temperature DHW temperature Comfort mode Comfort mode Auxiliary relay Auxiliary relay Accessory relay 1 Accessory relay 1 Accessory relay 2 Accessory relay 2 Heating partial load Heating partial load Reset to Contact data factory settings Installer level Testprogramme Appliance config Diagnosis menu Appliance config Diagnosis menu 9 2 Overview of the menu structure for installer leve
111. ls used in the text are explained below Symbol that denotes useful tips and infor mation gt Symbol for a required action 1 3 Applicability of the instructions These installation instructions are only valid for boilers with the following article numbers Article Gas Boiler Type designation es eed Council Number ecoTEC plus 612 VU GB 126 5 5 0010010677 41 044 60 ecoTEC plus 615 VU GB 156 5 5 0010011678 41 044 61 ecoTEC plus 618 VU GB186 5 5 O010011679 41 044 62 ecoTEC plus 6 8 VU GB 186 5 5 01001680 41 044 66 LPG ecoTEC plus 624 VU GB 246 5 5 0010011681 41 044 63 ecoTEC plus 630 VU GB 306 5 5 00100682 41 044 64 ecoTEC plus 630 VU GB 306 5 5 0010011683 41 044 67 LPG ecoTEC plus 637 VU GB 376 5 5 0010011684 41 044 65 ecoTEC plus 824 VUW GB 246 5 5 0010011685 47 044 40 ecoTEC plus 831 VUW GB 316 5 5 0010011686 47 044 41 ecoTEC plus Ee GB 316 5 5 0010011687 47 044 46 ecoTEC plus 837 VUW GB 376 5 5 0010011688 47 044 42 1 1 Appliance types article numbers and Gas Council Number The article number of the boiler can be found on the identi fication plate 1 4 Identification plate The identification plate of the Vaillant ecoTEC plus is attached to the underside of the boiler in the factory The article number of the gas fired wall hung boiler can be found in the serial number The seventh to s
112. ly must provide a means of completely isolating the boiler and its ancillary controllers Isolation is preferably by the use of a fused three pin plug and unswitched shuttered socket outlet both complying with the requirements of BS 1363 Alternatively a 3 Amp fused doublepole switch with a 3mm contact open ing on both poles may be used 2 5 7 Water supply Combination boilers Designers and installers must ensure that all pipe work and fittings connected to the ecoTEC complies with the neces sary water fittings regulations See related documents above ref BS 6700 and new BSEN 806 parts 1 5 plus BS 8558 For combination boilers the incoming water supply should be checked to ensure that sufficient pressure and flow rate are available to suite the intended use see the technical data at the back of this manual All mains water heated by the ecoTEC combination boiler will be classed as Category 2 fluid and small expansion vol umes created during warm up must be allowed to flow back into the supply pipe No back flow prevention is necessary with this appliance as the very small expansion volume is unlikely to heat the incoming service pipe above 25 Deg C Note that where back flow prevention devices are fitted this may include water meters these can prevent the per mitted expansion into the cold supply This along with the effects of pumping and or water hammer can result in a pressure build up that may cause damage to the boiler and oth
113. mes b A plume of water vapour will sometimes be visible from the flue terminal Positions where this could be a nuisance should be avoided C If the terminal is fitted less than 2 m above a balcony above ground or above a flat roof to which people have access then a suitable terminal guard must be provided and fitted contact Tower Flue Components Tonbridge TN9 1TB Vertical flues must not terminate within 600 mm of an openable window air vent or any other ventilation terminal The flue system shall be so placed or shielded as to prevent ignition or damage to any part of the building 7 5 Termination of the air flue gas duct 26 Installation and maintenance instructions ecoTEC plus 0020116700_03 Minimum Location F F dimensions Directly below an opening air brick opening win dows etc Above an opening air brick opening window etc Horizontally to an opening air brick opening win dow etc Below temperature sensitive building components e g plastic gutters soil pipes or drain pipes Below eaves Below balconies or car port roof From a vertical drain pipe or soil pipe From an internal or external corner balcony eaves flue adeguately flue extended to Supported clear any overhang Above ground roof or balcony level From a surface facing the terminal From a terminal facing the terminal From an opening in the car port e g door win dow
114. n heating connections boiler side mm 22 Hot and cold water connection boiler side Inches G 3 4 Connector expansion relief valve minimum mm 15 Condensate discharge pipework minimum mm 19 Flue gas spigot mm 60 100 concentric optional 80 125 concentric Gas connection pressure gas inlet working pres sure natural gas G20 kPa mbar 0 20 20 Gas connection pressure gas inlet working pres kPa mbar 0 37 37 sure propane G31 Gas flow rate at 15 C and 1013 mbar based on hot water generation if applicable G20 m h 1 3 1 6 2 0 2 6 3 3 4 0 G31 kg h 0 96 1 2 1 44 1 92 2 4 2 96 Flue gas mass flow min max g s 1 4 5 6 1 4 7 0 1 8 8 4 2 4 1 2 7 3 9 3 0 171 Flue gas temperature min max C 40 70 Certificated flue gas connections C13 C33 C43 C53 C83 C93 B53P NOx class 5 NOx mg kWh 19 7 229 259 32 3 30 2 36 0 A 89 0 89 3 90 3 89 4 90 4 B92 mm 720 x 440 x 335 720 x 440 720 x 440 X 369 x 403 Electrical connection V Hz 230 50 Built in fuse 2 A slow blow Electrical power consumption min max W 65 90 70 95 75 100 70 100 75 10 100 130 Electrical power consumption at 30 partial load W 40 40 45 50 50 50 Standby electrical consumption W lt 2 lt 2 lt 2 lt 2 lt 2 lt 3 3 Level of protection IP X4D Certification number CE O085CM0320 17 1 Technical data for ecoTEC plus VU boiler Installation and maintenance instructions ecoTEC plus 0020116700_03 81 ecoTEC plus Nominal heat output range P at
115. n the cap nut 2 Screw the discharge pipe 3 onto the expansion relief valve Make the discharge line routing as short as possible and sloping away from the boiler Allow the line to terminate in such a way that nobody can be injured and no cable or other electrical compo nents can be damaged if water or steam is ejected Note that the end of the line must be visible If the pipe cannot fall to a safe discharge point then the Vaillant remote pressure relief valve mounting kit can be used to provide a suitable way to achieve this Ensure the discharge pipe work is installed routed and terminated correctly to minimise the risk of freezing up Installation and maintenance instructions ecoTEC plus 0020116700_03 7 Flue gas installation 7 1 Air flue gas duct Danger Risk of death and risk of damage from use of non approved air flue gas ducts Vaillant boilers are system certified only in combination with genuine Vaillant air flue gas ducts The use of other accessories can cause personal injury and material damage as well as operating faults gt Only use genuine Vaillant air flue gas ducts The CE mark is valid only if the appliance is operated with Vaillant air flue gas ducts All ecoTEC plus boilers feature a 60 100 mm diameter air flue gas connection as standard Selecting the most suita ble system depends on the individual installation and appli cation conditions Standard 100 mm air flue gas duct
116. n the roof space It is recommended a risk assessment of the roof space area be carried out before moving the appliance into the area to take into account access stability of flooring lighting and other factors and appropriate measures taken Unpacking of appliance from carton gt Recommend 2 persons unpack appliance from carton gt Always keep working area clear gt Recommend straps and open carton flaps then remove items from the top including the polystyrene packing and remove carton by sliding up over the boiler gt Ensure safe lifting techniques are used keep back straight bend using legs Keep load as close to body as possible Always use assistance if required Dispose of packaging in a responsible manner Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance outside packaging VY VY y Positioning of Appliance for Final Installation no obstructions gt If appliance weight is over 25 kg always use 2 persons to move where practical gt Fit bracket securely onto wall before lifting appliance into position gt Obtain firm grip on front and sides of appliance lift upwards ensure stable balance achieved and lift upwards to position in place on bracket gt Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level gt Do not twist reposition feet inste
117. nchmark Initiative You will find the Benchmark Logbook on the last pages of this instruction manual It is very important that this docu ment be filled out properly when installing commissioning and fully explained at hand over to the operator of the installation Installers should point out also the service record section for completion following service calls to this appliance Vaillant Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water sys tems in the UK and to encourage regular servicing to opti mize safety efficiency and performance Benchmark is managed and promoted by the Heating and Hot water Industry Council gt For more information visit www centralheating co uk penchmar COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Vaillant supply a special self adhesive sticker on top of the boiler for use in entering the serial number details straight onto the commissioning checklist found in the last pages of this docu ment Installation and maintenance instructions ecoTEC plus 0020116700_03 1 7 Type overview Appliance type ecoTEC plus Designated country designation in accordance with ISO 3166 Approval category 612 VU GB 126 5 5 GB Great Britain E Ire and l24 615 VU GB 156 5 5 E Ire
118. nd or damage due to incorrect installation leading to leaking water Stresses in the supply line can cause leaks gt Make sure there are no stresses in the supply lines when they are installed Installation and maintenance instructions ecoTEC plus 0020116700_03 Caution Risk of damage caused by heat transfer when soldering Heat that is transferred during soldering can cause damage to the seals in the serv ice valves gt Do not solder the connection pieces if the connection pieces are screwed to the service valves Seals made of rubber like materials may be sub ject to plastic deformation which can lead to pressure losses We recommend using seals made of a paste like fibre material The Vaillant ecoTEC boiler is equipped with a 10 expansion vessel with a gas side filling pressure of 0 075 MPa 0 75 bar which is suitable for a closed heating system with a maximum water volume of 100 litres gt Before installing the boiler check whether the volume of the installed expansion tank is sufficient gt If the volume of the expansion vessel is insufficient then install an additional expansion vessel connected as close to the boiler as possible into the boiler return pipe When using an external expansion vessel together with a VUW boiler it is advisable to install a non return valve in the outlet boiler flow or take the internal expansion vessel out of service Otherwise the warm start function may b
119. nd supplementary water quantity during the operating life of the system exceeds three times the nominal volume of the heating installation or If the limit values shown in the tables are not observed Total heating Overall hardness at smallest boiler heating output surface 20 VKW hae he gt 50 I kW KW mol m mol m mol m mg l CaCO3 mg l CaCO3 mg l CaCO3 ment or 2 lt 50 lt 30 200 lt 300 gt 50 to lt 200 2 200 1 5 gt 200 to lt 600 gt 600 1 on systems with circulation water heaters and for systems with electric heating elements 2 from the specific system volume nominal capacity in litres heating output for multiple boiler systems the lowest individual heating output should be used This data only applies up to 3 times the system volume for filling and top up water If 3 times the system volume figure is exceeded the water must be treated in exactly the same way as if the limits quoted in table 2 2 were exceeded softening desalination hardness stabilisation or desludging 2 2 Guideline values for heating water water hardness 2 5 9 Pressure relief valve The boiler is equipped with a pressure relief valve This safety device is required for all sealed central heating sys tems is preset to 3 bar and is fitted with a 15 mm compres sion connection for the discharge pipe whose diameter must not be less than 15 mm The pressure relief valve must not be used for dr
120. nt see gt section 12 1 4 27 Complete the Benchmark gas boiler commission service record on the back pages of this manual xX 12 3 Inspection and maintenance steps Additional checks and procedures will be required where the boiler is used with a cylinder or solar thermal system These are not covered in this manual Installation and maintenance instructions ecoTEC plus 0020116700_03 61 12 2 1 Filling the boiler and the heating installation A description of how to fill the boiler and the heating instal lation is provided in section 10 7 12 2 2 Draining the boiler gt Close the service valves of the boiler gt Start test program P O6 diverter valve mid position gt section 10 7 gt Open the drain valves on the service valves gt Make sure that the cap of the automatic air vent on the internal pump is open so that the boiler can be drained fully 12 2 3 Draining the entire heating installation gt Attach a hose to the draining device on the system gt Bring the open end of the hose to an appropriate drain point gt Start test program P O6 diverter valve mid position gt section 10 7 gt Make sure that the service valves on the boiler and the cap of the automatic air vent on the internal pump is open gt Open the drain cock gt Open the purging valves of the radiators Start from the highest radiator and then work from top to bottom gt Once the water has drained off cl
121. nti cycling time The current burner anti cycling time appears in the display gt Confirm the reset of the burner anti cycling time by pressing the right selection button Select 2nd option gt Press the fault clearance key Operating instructions 11 1 6 Setting the maintenance interval You can define maintenance intervals for the ecoTEC plus Using this function the message that the boiler must be serviced appears in the display after a defined configurable number of burner operating hours After the expiry of the set burner operating hours the maintenance symbol open end spanner appears next to the current flow temperature The display on the eBUS con troller accessory shows the information Maintenance MAIN fest demand Ramer Peotone E persons depending on the system type 5 0 kW ne A 10 0 KW ae i256 15 0 kW a foo i 20 0 kW ae ooo n 25 0 kW ee ra h gt 27 0 kW ae 1000 i 11 3 Guideline values for operating hours gt Set the operating hours until the next service using diag nosis code d 084 Guideline values for the setting can be found in gt table 11 3 The values stated correspond to an average boiler operat ing time of one year You can set the operating hours in increments of ten from O to 3 000 h If you do not enter a figure under diagnosis code D 084 but instead enter the symbol then the Maintenance display function is not active On completion
122. o auto This means that the boiler independ ently determines the optimum heating output depending on the current heat demand of the system A setting is nor mally no longer required The setting can also be changed later using diagnostics point D OOO If you have activated return control under D 17 the automatic heating output determination function is not active If you set d OO to auto anyway the boiler operates with the maximum possible heating partial load 10 2 8 Auxiliary relay and multi functional module Additional components that are attached to the boiler can be adjusted directly here This setting can be changed using diagnostics codes D 026 D 027 and D 028 10 2 9 Competent person telephone number You can store telephone numbers in the menu The operator can display these in the information menu The telephone numbers can be up to 16 digits long and must not contain any spaces If the telephone number is shorter end the entry after the last digit by pressing the right selection button All of the digits to the right will be deleted 10 2 10 Terminating the installation assistant If you have successfully run through and confirmed the installation assistant it will not start up automatically next time the unit is switched on 40 10 2 11 Restarting the installation assistant You can restart the installation assistant any time by calling it up manually in the menu Menu gt Installer level gt Installati
123. o low wrong air ratio condensate route blocked wrong gas restrictor ionisation flow interruption cables elec trodes flue gas recirculation condensate route F7O Invalid device specific number DSN Spare part case Display and PCB replaced at same time and DSN not set wrong or missing output range coding resistor 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 Interruption short circuit of water pressure sensor interruption short cir too low cuit to GND in supply line to water pressure sensor or water pressure sen sor defective F 74 Water pressure sensor signal outside correct Cable to water pressure sensor has short circuited at 5 V 24 V range or internal fault in water pressure sensor too high F75 Fault no pressure change detection when start Water pressure sensor and or pump defective air in heating installation ing pump too low water pressure in boiler check adjustable bypass connect external expansion vessel to return F 76 Overheating protection on primary heat Cable or cable connections for safety fuse in primary heat exchanger or exchanger has responded primary heat exchanger defective F 77 Flue non return flap condensate
124. of regular maintenance by a competent specialist company to the operator It is strongly recommended that a maintenance contract be taken out to ensure regular maintenance Important information is available from Vaillant Service Solutions 0870 6060 777 Fully complete the Benchmark gas boiler commissioning checklist which will be found at the back of this manual If this boiler is not installed and commissioned in accord ance with manufacturer s instructions this may void the 56 guarantee Note Your legal rights remain unaffected by this gt Handover the boiler to the operator gt Explain the basic operation of the heating installation to the operator Provide the operator with all relevant instructions and boiler documentation Go through the operating instructions with the operator Reply to his questions if necessary Make the operator aware of the need to keep the instruc tions in a handy location near the boiler but not in or on the boiler Draw special attention to the safety instructions which the operator must follow Instruct the operator that no changes or adaptations must be made to the flue system or combustion air sup ply These must both terminate outside of the building and be constructed only from approved components Explain to the operator how he should monitor the water level filling pressure of the system Explain to the operator which measures are required to top up and purge the heating instal
125. of the set operating hours you must set the maintenance interval again in diag nosis mode Installation and maintenance instructions ecoTEC plus 0020116700_03 11 1 7 Setting the pump output The ecoTEC plus boiler is equipped with a 2 stage pump The output of the two stage pump can be adjusted to the requirements of the heating installation gt If necessary change the setting of the pump speed according to the operating mode under diagnostic point D 019 Setting options gt table 11 1 D 019 Pump operating mode of 2 stage pump settings 0 Burner mode stage 2 pump flow overrun stage 1 1 Heating mode and pump flow overrun stage 1 DHW mode stage 2 2 Automatic heating mode pump flow overrun stage 1 DHW mode stage 2 3 Stage 2 4 Rotational speed during heating mode depending on heating partial load otherwise always stage 1 11 1 8 Setting the by pass valve The boilers have a by pass valve The pressure is adjustable in the range between 17 0 MPa 170 mbar and 35 0 MPa 350 mbar Approx 25 0 MPa 250 mbar is pre set mid position The pressure changes by approx 1 0 MPa 10 mbar each time the adjusting screw is rotated By turning right the pressure increases and turn ing left decreases it 11 1 Adjusting the by pass valve gt Regulate the pressure using the setting screw 1 55 Position of the setting screw Pressure in MPa Notes application down mbar If the radiat
126. old up the cover Closing the electronics box gt Close the rear panel on the electronics box gt Push in the panel until it clicks into place in the clips gt Fold up the electronics box gt Push the right and left clips of the box against the side panels on the boiler until they click into place gt Replace the front casing on the boiler gt section 4 7 8 3 Establishing the mains connection Danger Risk of death from electric shock Mains connection terminals L and N remain live even if the continuous on off switch is turned off gt Before establishing a mains connection switch off the power supply Caution Risk of damage from erroneous con nected voltage At mains voltages greater than 253 V and less than 190 V the functions may be impaired gt Make sure that the rated voltage of the mains is 230 V Installation and maintenance instructions ecoTEC plus 0020116700_03 Caution Risk of damage caused by incorrect installation A mains voltage at the incorrect plug termi nals on the ProE system can destroy the electronics gt Only connect the mains connection cable to the terminals marked for the purpose Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far can cause short circuits and damage the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables
127. on assistant 10 3 Appliance configuration and diagnosis menu If you have already filled and purged the heating installa tion and have terminated the installation assistant but wish to set the most important system parameters again you can also call up the Appliance configuration menu point Menu gt Installer level gt Appliance configuration All of the setting options for more complex systems can be found in the diagnosis menu gt section 11 Menu gt Installer level gt Diagnosis menu 10 4 Using test programs As well as the installation assistants you can also call up the test programs for commissioning Menu gt Installer level gt Test programs As well as the function menu gt section 12 3 an electron ics self test facility section 12 3 1 and the gas family check gt section 12 1 5 you will also find the test programs here Menu gt Installer level gt Test programs gt Test programs If you activate different test programs you can trigger spe cial functions on the boiler The following four test programs are available Installation and maintenance instructions ecoTEC plus 0020116700_03 Display Meaning P 0O Purging test program The heating circuit and the hot water circuit are purged using the automatic air vent the cap of the automatic air vent must be released 1x right selection button Start heating circuit purging 2 x right selection button i gt ay Start purging ho
128. or tightness of the flue gas installation and flue gas recirculation gt Check the integrity off the flue gas installation according to TB 008 gt Should the flue gas installation be longer than 2m we strongly recommend to check the system for flue gas recirculation as described below 10 6 Flue gas and air measure points Legend 1 Flue gas measure point 2 Air measure point For checking the system for recirculation use the air meas ure point 2 gt Use the flue gas analyser gt If you detect any CO or CO in the fresh air search for the flue gas leakage or recirculation gt Correct the defects gt Check again as described before if there is any CO or CO in the fresh air gt If you cannot correct the defects you must not start up the boiler 10 11 3 Checking the gas flow rate The boiler is fitted with an electronic gas air system which ensures that the precise air gas ratio is provided under 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 follows Installation and maintenance instructions ecoTEC plus 0020116700_03 If Start the boiler by activating the test program P 01 as described in gt section 10 4 In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo stat Alternatively for VUW boilers fully open th
129. ors do not get Right hand stop properly hot in the factory turned all the way 35 0 350 Setting Note In this case you must set the pump to the maximum stage Mid position 5 turns to the left 25 0 250 Factory setting 5 further turns to the left from the mid posi tion If noises in the radiators or 17 0 170 radiator valves are produced 11 4 Setting value for the by pass valve feed head 11 2 gt Handing over the boiler to the operator Danger Risk of poisoning and burns caused by escaping hot flue gas Hot flue gas can escape and cause poison ing and burns if the boiler is operated with an incompletely mounted or open air flue gas duct or if the boiler is operated with internal leaks with the front casing open gt Operate the boiler for commissioning for testing purposes in continuous operation only when the front casing is fitted and closed and the air flue gas duct is com pletely mounted gt Exclusively for test purposes such as gas working pressure testing the boiler may be operated with the front casing removed for short durations ONLY but must have a completely mounted air flue gas duct After completing the installation stick the 835593 sticker in the user s language to the front of the unit The sticker is delivered with the boiler You must brief the operator of the boiler on the handling and function of the ecoTEC plus gt Explain the importance
130. ose the purging valves of the radiators and the drain cock 12 3 Using the function menu You can use the function menu to service the ecoTEC plus as it allows you to actuate and test individual components of the heating installation Menu gt Installer level gt Test programs gt Function menu gt Use the minus button or the plus button to go to the components of the heating installation gt Confirm your selection using the right selection button Select Cancelling the function test gt Press the left selection button Cancel to stop the function test You can test the operation of the heating installation com ponents listed below using the self tests in the function menu 62 Display Test programs Action T 01 Check internal You can switch the internal pump on pump and off T 02 Check 3 way You can move the diverter valve to valve the heating position or to the hot water position T 03 Check fan You can switch the fan on and off The fan runs at maximum speed T 04 Check cylinder You can switch the cylinder charging charge pump pump on and off T 05 Check circulation You can switch the circulation pump pump on and off T 06 Check external You can switch the external pump on pump and off T 08 Check burner The boiler starts carries out the nec essary self test and switches to mini mum load The flow temperature is shown in the display
131. ould 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 10m head equals an additional 1bar reading on the pressure gauge The minimum pressure should not be less than O 1MPa 1bar 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 instruc tions Further information can be obtained from Sentinel Betz Dearborn Ltd Tel 0151 420 9595 or Fernox Alpha Fry technologies Tel 0870 8700362 gt Refit the boiler casing gt section 4 7 gt Attach the bottom cover to the boiler by sliding the front edge of the cover into the lip at the bottom front edge of the appliance chassis gt Carefully push the rear of the bottom cover upwards until the spring retaining clips engage at the side of the appliance It may be necessary to adapt the bottom cover by removing the easy break sections y y y y y y 48 Installation and maintenance instructions ecoTEC plus 0020116700_03 11 Adapting the boiler to the heating installation The installation assistant is started when the boiler is switched on for the first time gt section 10 2 If you have already filled the heating installation and termi nated the installation assistant but wish to set the most important system parameters again You can also call up the Appliance configuration m
132. ow temperature is not at Heating off Operating instruc tions and the heating requirement is enabled via an exter nal controller Installation and maintenance instructions ecoTEC plus 0020116700_03 53 Eco intermittently operating pump Pump operating mode Eco is the factory setting This pump operating mode is useful for removing residual heat after hot water generation when the heat demand is extremely low and large temperature spreads exist between the hot water generation and heating mode target values This pre vents living rooms from being under supplied If there is a heat demand the pump is switched on every 25 minutes for 5 minutes once the overrun time has elapsed 11 1 3 Setting the maximum flow temperature The maximum flow temperature for the heating is set at the factory to 75 C This can be set to a value in the range of 40 C to 80 C under diagnosis code D 071 11 1 4 Setting the return flow temperature control If the boiler is connected to an underfloor heating system the temperature control can be changed from flow temper ature regulation factory setting to return flow tempera ture control under diagnosis code D 017 11 1 5 Burner anti cycling time Setting the burner anti cycling time To prevent frequent switching on and off of the burner and therefore energy loss an electronic restart lockout is acti vated for a specific period each time the burner is switched off You can adjust the bu
133. p the right selection button and the plus button pressed until the option for changing the language appears on the display gt Select the language of your choice using the minus key or the plus key gt Confirm the change by pressing the right hand selection button OK If you unintentionally select a language that you cannot understand you can change it again as described below y 10 2 2 Filling mode Filling mode test program P O6 is activated automatically in the installation assistant for as long as it appears on the display gt section 10 4 10 2 3 Purging gt Start test program POO to purge the system gt section 10 4 Unlike the way in which it is started in the test programs menu the purge program P OO is started in the installa tion assistant by pressing the minus button or the plus button In order to change the circuit that is being purged you can press the right selection button 39 10 2 4 Target feed temperature Use the minus button and the plus button to set the target feed temperature Confirm your setting with OK 10 2 5 Hot water temperature Use the minus button and the plus button to set the hot water temperature Confirm your setting with OK 10 2 6 Comfort mode Use the minus button and the plus button to enable or disa ble comfort mode Confirm your setting with OK 10 2 7 Heating partial load The heating partial load of the Vaillant ecoTEC plus boiler is factory set t
134. pany Name Telephone Number Telephone Number Engineer ID Number Comments Engineer ID Number Comments Signature Signature SERVICE 9 Date Energy Efficiency Checklist completed SERVICE 10 Date Energy Efficiency Checklist completed Engineer Name Engineer Name Company Name Company Name Telephone Number Telephone Number Engineer ID Number Comments Engineer ID Number Comments Signature Signature 21 EC declaration of conformity EC declaration of conformity Name and Address of the Vaillant Group UK Ltd Belper manufacturer Nottingham Road DE56 1JT Belper Derbyshire United Kingdom Identification of product Gas fired wall hung high efficiency condensing boiler Appliance type VU GB 126 5 5 156 5 5 186 5 5 246 5 5 306 5 5 376 5 5 VUW VUI GB 246 5 5 316 5 5 376 5 5 VUW GB 246 5 3 286 5 3 The appliance types satisfy the essential requirements of the relevant directives and Standards 2009 142 EEC including amendments Designed and built to CE type examination certifi Directive on the approximation of the law of the cate member states relating to appliances burning gaseous fuels PIN CE 0085CM0320 92 42 EEC including amendments Directive of efficiency relating to boiler burning gaseous fuels Designed and buil
135. pe and source of danger Explanation of the type and source of danger gt Measures for averting the danger 2 2 Intended use The Vaillant ecoTEC plus boilers are state of the art units which have been constructed in accordance with recognised safety regulations Nevertheless there is still a risk of injury or death to the operator or others or of damage to the boiler and other property in the event of improper use or use for which it is not intended This boiler is not designed to be used by persons including children with limited mental and sensory capabilities or by persons who do not have enough experience and or knowl edge unless they are supervised by a person who is respon sible for their safety or they have been instructed by him her about how to use the boiler Children must be supervised to ensure that they do not play with the boiler The boiler is intended as a heater for closed hot water cen tral heating installations and for hot water generation The use of the ecoTEC plus in vehicles such as mobile homes and caravans is not classed as intended use Units that are not classed as vehicles are those that are installed in a fixed and permanent location and that do not have any wheels fixed installation Any other use or use beyond that specified shall be con sidered as improper use Any direct commercial or indus trial use is also deemed to be improper The manufacturer or supplier is not liable for
136. peller sensor hot water Secondary heat exchanger 11 4 Installation BEFORE PROCEEDING ENSURE BOILER IS CORRECT FOR GAS GROUP SUPPLIED The work described in this section must only be carried out by a competent person 4 1 Accessories 4 11 Controller To control the ecoTEC Vaillant offers various controller ver sions for connecting to the switching rail or for plugging into the operator control screen Room Thermostats VRT 30 Room Thermostat 230 V VRT 50 Room Thermostat eBUS Timers Programmers The current price list shows the complete range of hydraulic accessories for the ecoTEC plus series The pipes can be routed upwards behind the boiler in front of the wall surface installation using the spacer frame Which means the dis tance between the wall and the boiler increases by 65mm 4 2 Scope of delivery The Vaillant ecoTEC plus is delivered pre mounted in a packaging unit 4 21 Unpacking the boiler gt Remove the boiler from its box gt Remove the protective film from all parts of the boiler 4 2 2 Checking the scope of delivery gt Check that all parts have been delivered and are intact gt fig 4 1 and gt table 4 2 or gt fig 4 2 and gt table 4 3 timeSWITCH 150 mechanical clock timeSWITCH 160 7 day programmer Digital Room Temperature Controls VRT 350 Programmable Room Control VRT 392f RF Programmable Room Control VRT 350f
137. pen all thermostatic radiator valves gt Check that both service valves on the boiler are open gt Slowly open the stop valve on the filling line so that the water flows into the heating system Filling the heating installation Ensure that the filling and drainage cock on the heating installation is connected to a cold water valve as per standard If the water pressure in the heating system is too low the display switches between fault mes sage F 22 and the display of the current pressure when the boiler is switched on 42 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 Close all purging valves gt Use the display to monitor the rising filling pressure in the heating installation gt Top up with water until the pressure gauge display is in the middle of the grey area and the required filling pres sure appears on the display gt After filling close the stop valve at the filling line and the cold water valve gt Check all connections and the entire system for leaks 10 7 2 Purging the heating system gt To purge the heating installation select test program POO gt section 10 4 The boiler does not start up the internal pump operates intermittently and as an option purges the heating circuit or the hot water circuit The display shows the filling pres sure of the heatin
138. perature D OO3 Outlet temp actual value Not adjustable D OO4 Measured value of hot water sensor In SC Not adjustable D OOS Flow temperature target value In C max of the value set in d 71 limited by an eBUS con Not or return target value troller if connected adjustable D OO6 Hot water temperature target value 35 to 65 C Not VUW boilers only adjustable D OO7 Warm start temperature target value 40 to 65 C Not only with VUW boilers 15 C frost protection then 40 to 70 C adjustable Cylinder temperature target value max temperature can be adjusted under D 020 only with VU boilers D OO8 Room thermostat at terminal RT Room thermostat open no heat requirement Not Room thermostat closed heat requirement adjustable D OO9 Target value from external eBus con In C Not troller adjustable D O1O Status of internal pump On Off Not adjustable D OT Status of external heating pump On Off Not adjustable D O12 Status of cylinder charge pump On Off Not adjustable D O13 Status of hot water circulation pump On Off Not adjustable D O14 Target pump speed Not relevant Not high efficiency pump adjustable D O15 Actual pump speed Not relevant Not high efficiency pump adjustable D O16 Room thermostat 24 V DC open Heating mode Off On Not closed adjustable D O17 Heating flow return regulation Control type flow return Flow changeover D O18 Pump operating mode setting Comfort continuously operating pump Eco Eco interm
139. pump remote control Coding resistor output range X41 External sensor External temperature sensor Edge DCF connection connector Earth Earth Ww blue Bs Contact thermostat burner off Perri a gt O 12 45 X100 R35 8 24 V DC room thermostat gt a Ze of b l Bus connection NS EE pin _ es MG 24V DS Controller room th digital z 230 V X16 k EN Auxiliary relay san gey QDS Selection by D 026 H XI Ne ES blue OE HE Internal pump N X18 green Ignition Ignition SS No function electrode trans RT S 230 V AC room thermostat former L gt O 3 X1 IN 29 Mains connection mm turquoise d mm 2 Rad Appliance earth variant dependent 8 6 Connection diagram for electronics box ecoTEC plus 837 Installation and maintenance instructions ecoTEC plus OO20116700 03 9 Operation The Vaillant ecoTEC plus boiler is fitted with a digital infor mation and analysis system DIA If additional settings are required which have not been configured using the installa tion assistant you can view and modify further parameters using the DIA The operating concept and operation of the boiler is described in the gt operating instructions of the boiler The read off
140. r unscrew both cap nuts at the same time gt Unscrew the three screws 2 7 fig 14 2 between the mixture pipe 1 gt fig 14 2 and the fan flange Caution Risk of damage to the gas pipe The corrugated gas pipe can be damaged by incorrect handling gt Do not suspend the gas valve on the flex ible corrugated gas pipe gt Do not suspend any loads on the corru gated gas pipe Installation and maintenance instructions ecoTEC plus 0020116700_03 14 3 Removing the gas valve and venturi from fan gt Remove the entire fan venturi gas valve unit from the boiler gt Unscrew the fixing screw 2 7 fig 14 3 of the gas valve out of the bracket gt Remove the gas valve from the bracket gt Remove the venturi 3 gt fig 14 3 with the gas connect ing pipe 1 gt fig 14 3 out of the fan by turning the bayo net fitting of the venturi anti clockwise as far as it will go and pulling it out of the fan straight 14 4 Removing the bracket of the gas valve gt Remove the bracket 1 gt fig 14 4 of the gas valve from the fan by unscrewing the three screws 2 gt fig 14 4 73 14 Replacing components gt Replace the defective fan 14 4 Replacing the gas valve Caution ing not permissible setting Risk of material damage caused by mak Modifications to the gas pressure regulator on the gas valve can destroy the gas valve and cause operating faults
141. rectly the display will show sta tus code S 04 The status code displayed will also be explained by the plain text display Heating mode Burner on 10 12 2 Checking hot water generation VUW boilers only gt Switch on the boiler gt Open a hot water valve all the way gt Activate the Live monitor gt section 13 2 1 If hot water generation is working correctly the display shows S 14 The displayed status code is also explained by the plain text display DHW mode Burner on DHW mode Burner on gt Check the gas supply line the flue gas installation the heating installation and the hot water pipes for leaks gt Check the air flue gas duct for correct installation gt Make absolutely sure that the front casing is properly fit ted gt Check the heating mode gt section 10 12 1 gt Check the operation of the hot water generation gt section 10 12 2 and 10 12 3 You can display the current operating condition of the boiler in the Live monitor on the boiler display gt section 13 2 1 Menu gt Live monitor 10 12 1 Checking the heating mode gt Switch on the boiler gt Make sure that there is a heat requirement gt Activate the Live monitor gt section 13 2 1 Installation and maintenance instructions ecoTEC plus 0020116700_03 10 10 Display during hot water generation VUW boilers only 10 12 3 Checking hot water generation VU boilers only gt Switch on the
142. rner anti cycling time to the con ditions of the heating installation The burner anti cycling time is only activated for the heat ing mode Hot water handling during a burner anti cycling time does not affect the timer You can set the maximum burner anti cycling time at installer level under diagnosis code D 002 within the range 2 minutes to 60 minutes factory setting 20 min The effective burner anti cycling time depends on the cur rent target flow temperature and the maximum burner anti cycling time set The effective burner anti cycling times with respect to the target flow temperature and the maximum set burner anti cycling time can be found in the following table The remaining burner anti cycling time following a regular shutdown in heating mode can be called up under diagnosis code d 067 Treca target Set maximum burner anti cycling time min C 20 A 2 25 230 27 5 36 5 30 g 20 5 25 0 33 0 37 0 41 0 45 0 49 5 35 g 18 5 22 0 29 5 36 5 40 5 40 16 5 19 5 260 290 32 0 35 5 45 25 0 33 0 50 21 0 28 0 55 17 0 22 5 60 13 0 17 0 65 9 0 11 5 70 5 0 f f 6 5 75 1 0 11 2 Effective burner anti cycling times 54 Installation and maintenance instructions ecoTEC plus 0020116700_03 Reset remaining burner anti cycling time You have two options to reset the remaining burner anti cycling time 1st option Menu gt Reset burner a
143. rvice Solutions 0870 6060 777 for further details 80 Installation and maintenance instructions ecoTEC plus 0020116700_03 17 Technical data SEDBUK 2005 SEDBUK 2009 G20 G31 Boiler dimensions H x W x D Mounting weight approx 612 VU 615 VU 618 VU 624 VU 630 VU 637 VU ecoTEC plus GB GB GB GB GB 126 5 5 156 5 5 186 5 5 246 5 5 376 5 5 Nominal heat output range P at 50 30 C 3 3 12 9 3 3 161 4 2 19 3 57 257 71 39 6 Nominal heat output range P at 80 60 C 3 0 12 2 3 0 15 4 3 8 18 5 5 2 24 4 6 4 37 6 Maximum heat output for hot water generation 37 6 Maximum heat input 18 6 24 7 381 Minimum heat input G20 4 0 5 5 6 8 Minimum heat input G31 5 3 6 4 9 0 Minimum heat output with G31 8 5 Heating output setting range 6 37 Heating Max flow temperature de 85 Max flow temperature setting range a 7 factory setting 75 C c 30 80 Min pressure for full operation MPa bar 0 08 0 8 Permissible total over pressure MPa bar 0 3 3 Expansion vessel capacity 10 Circulation water quantity with reference to AT 20 K I n 516 645 774 1032 1290 1591 Condensate rate approx pH value 3 5 4 0 in heating mode 50 C supply 30 C return Vn 1 6 12 2 5 31 3 8 Remaining feed head of pump at nominal circula MPa bar 0 025 0 25 0 020 0 20 tion water volume General Gas connection boiler side mm 15 15 15 15 15 22 Flow retur
144. s sticker for tank 4 3 Scope of delivery for ecoTEC plus VUW boiler Installation and maintenance instructions ecoTEC plus 0020116700_03 4 2 3 Disposing of the packaging gt Dispose of the cardboard packaging used on the eco TEC plus at a cardboard recycling site gt Dispose of the plastic film and plastic filling at an appro priate plastic recycling site gt Observe national regulations 4 3 Transporting the appliance Important With regards to the Manual Handling Operations 1992 Reg ulations the following lift operation exceeds the recom mended weight for a one man lift General recommendations when handling gt Clear the route before attempting the lift gt Ensure safe lifting techniques are used keep back straight bend using legs gt Keep load as close to body as possible Do not twist reposition feet instead gt If 2 persons performing lift ensure co ordinated move ments during lift gt Avoid upper body top heavy bending do not lean forward sideways gt Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip gt Always use assistance if required Removal of carton from delivery van Recommend 2 person lift or 1 person with use of sack truck gt If1person is performing lift straddle the load tilt and place carton into position on truck gt Recommend secure appliance onto truck with suitable straps gt Ensure sa
145. s setting Caution Risk of damage caused by a not permis sible setting Modifications to the gas pressure regulator on the gas valve can destroy the gas valve and cause operating faults on the boiler gt Never modify the factory setting for the gas pressure regulator of the gas valve A l Ve 10 5 Gas pressure regulator 44 Gas valves with gas pressure regulators 1 are not installed in all boilers There are also versions without gas pressure regulators 10 11 1 Factory setting Caution An incorrect gas group setting can cause operating faults or a reduction in the working life of the boiler If the boiler version does not correspond to the local gas group there will be malfunc tions or you have to change components of the boiler ahead of schedule e g do not use a LPG boiler on natural gas gt Before starting up the boiler compare the details of the gas group specified on the identification plate with the gas group supplied at the installation site If the boiler version corresponds to the local gas family gt Proceed as described below If the boiler version does not correspond to the local gas family gt Call Vaillant Service Solutions 0870 6060 777 Gas conversions must only be carried out by Vaillant Service Solutions gt You must not start up the boiler yourself The combustion of this boiler has been checked adjusted and preset at the fac
146. s that have occurred the fault currently selected with fault number F xx a plain text display explaining the fault y You can display the last 10 faults that occurred using the minus button C Jor the plus button L_ _ 13 2 7 Reset fault memory You can delete the entire fault list gt Press the right selection button Delete gt Confirm the deletion of the fault memory by pressing the right selection button again OK Installation and maintenance instructions ecoTEC plus OO20116700 03 13 2 8 Overview of fault codes Code Meaning Cause F OO 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 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 03 Interruption cylinder sensor actoSTOR NTC NTC defective NTC cable defective defective plug connection on NTC only in combination with F 91 defective plug connection on actoSTOR electronics F10 Flow NTC short circuit NTC defective short circuit in
147. sessssesessssesesessesesessesesssseseesssesessssese Lafiduade EE Ee TE EE Burner anti cycling time Low loss header BY PASS ValVe esse sesse ik Heating partial load esse sesse see se ee Se Re Re ee ee ee Language Ed ed eke ed Ne dee ee ee ed eke M Maintenance interval sesse sesse se ee se Se Se Se Se Ge Ge Ge Ge Ge Ge ee Maximum flow temperature sesse sesse se see Se GR ee Se ee 54 Mains Connect Oeics sesse Ee RS GE oek Ge eek Ee eke Poes De Ge eg dd Pump operating mode 53 Manufacturer s guarantee Pump Output eee w 55 Minimum clearance 6 PUMP OVeFUN esse se sesse se ee ee ee ee su O3 Multi functional module ee sesse se se ee Re Re Re Return flow temperature control sesse se Re 54 StatUsicOdeS EE EE EA aa 67 0 T Overview Inspection and maintenance WOFK e ssesessssesessssesesessesseses 61 Test prograMS e sessssessssssesessesessssesesessesesessesesessesesessesesessese 40 71 Menu dele dt RE ONE OE OE ed EYE eo de SA RE GE OO eE E Seri inst 5 ParamelerS siese EES ESR cestiti ees Ed SR Ee REEN ES BE GER ee Be dee ES 50 51 52 StatusscodeS EE EE EE EE SE Ee ee Ge Re be ig 67 V P Vaillant customer service sesse se se se see Se Se Se Se Ge Ge GR RR gese 80 Preparing Electrical instalati tina ee OR OE NE ee 28 W GaSsIMStallAbl OM se EE ER RE Ee ee ER Ee 20 Hydraulic installation sesse se see se SR ee GR ee ee Re ee 21 Wall mounting Pump operating mode ie AE OE OE 18 PUMP OVEr FUN is sesse ese G
148. t according to European Stan 2006 95 EEC including amendments dards Directive on the harmonization of the laws of EN 483 EN 483 A4 E Member States relating to electrical equip EN 677 ment designed for use within certain voltage limits EN 625 EN 60335 1 2004 108 EEC including amendments EN 60335 2 102 Directive on the approximation of the law of the EN 60529 member states relating to electromagnetic com EN 55014 patibility EN 61000 3 2 EN 61000 3 3 Any change to the appliance and or any use not according to the instructions will lead to the invalidation of this Declaration of Conformity N 5 2 Remscheid 07 02 2012 A a 4 Place date Program Manager Certification Group Manager LV Th Lindenbeck iM M Imann gt Installation and maintenance instructions ecoTEC plus 0020116700_03 Index A ACCOSSOMIOS OO 12 Air flue gas duct Air flue system sees Article numbers NE dIE AA AG EE OE eeesiieia B ESE OR ER EE a 62 64 Burner anti cycling time eesesse sesse se ee Re Re 54 67 83 C solied 83 Checking dal AE EE EE EE N 64 Connection PreSSUF i esse sesse se sesse ee w 45 Expansion vessel charge pressure vs 66 Function of boiler esse ee ee uk 46 EA OE EE 45 He atind mode sur ses Se See Sk Ee Se Gee ok Ge bee ek EEND ek Gee Eg 47 Leaks aa ste a ck Scope of deliVerV iese se se see se Re Se Re Se Re Se Re Se Re ee Circulation PUMP esse sesse sesse se Re Se R
149. t water circuit 3 x right selection button R gt tii Restart heating circuit purging 1x left selection button Cancel Exit purging pro gram The internal pump is cyclically actuated Note The purge program runs 7 5 min per circuit P O1 Maximum load test program The boiler is operated at maximum heat input after suc cessful ignition P O2 Minimum load test program The boiler is operated at minimum heat input after suc cessful ignition PO6 Filling mode test program The diverter valve VUV is moved to the mid position The burner and pump are switched off to fill or drain the boiler 10 1 Overview of the test programs d Purging the heating circuit Diverter valve in heating position actuation of internal pump for 9 cycles 30s on 20 s off Display Active heating circuit Purging the hot water circuit After the above mentioned cycles have run or the right selec tion button has been pressed again Diverter valve in the hot water position actuation of the internal pump as above Display Active hot water circuit If you do not press a button for more than 15 minutes the test programs are stopped auto matically The boiler switches to normal operat ing mode To terminate the test programs you can press the left selection button Cancel at any time POO Exhaust Heating circuit 1 0 bar o Cancel 10 1 Boiler in error condition Installation and maintenance instru
150. tem will not be filled automatically from the domestic hot water side Alternative methods of filling sealed systems are given in BS 5449 The ecoTEC plus combination boilers can be filled via the built in filling lopp under the boiler fig 10 3 To ensure the correct operation of the heating installation the indicator on the pressure gauge must point to the upper half of the grey area or in the middle of the bar graph display marked by the dashed limit value when the heating installation is cold This corresponds to a filling pressure of between O1MPa and 0 2 MPa 1 0 bar and 2 0 bar You can display the exact filling pressure section 10 6 41 If the heating installation extends over several storeys higher filling pressures may be reguired to avoid air enter ing the heating installation gt Remove the front casing from the boiler gt section 4 7 10 2 Automatic air vent gt Release the cap of the automatic air vent 1 by up to two rotations gt Open all thermostatic radiator valves gt Only for VUW boilers Select test program P O6 gt section 10 4 The ecoTEC plus purges the heating circuit inde pendently during continuous operation via the automatic air vent The diverter valve moves to the central position the pumps do not run and the boiler does not switch to heating mode 10 7 1 gt In order to fill the heating installation first open the cold water valve gt O
151. the multi functional module at installer level gt section 11 1 8 6 Actuating the circulation pump demand controlled You can actuate the circulation pump for a domestic hot water cylinder demand controlled using the ecoTEC plus Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far can cause short circuits and damage the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables for a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs gt Perform the wiring in the same way as in gt section 8 4 gt Connect the supply line of the external button with ter minals X41 1 0 and X41 6 FB of the PCB fig 8 3 and 8 4 The edge connector required for this is included i with your controller Installation and maintenance instructions ecoTEC plus 0020116700_03 31 8 7 Connection diagrams X51 Display X22 Is Pump PWM signal Connection 8 gt om 7 IS i Gas valve i 2 EF Holding magnet 2 afro if 9 a Sa 3 3 Ua X25 l
152. the installation in a hard water area above 200ppm If yes has a water scale reducer been fitted What type of scale reducer has been fitted DOMESTIC HOT WATER MODE Measure and Record Gas Rate m hr OR Burner Operating Pressure at maximum rate mbar 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 If required by the manufacturer record the following CO OR CO ppm OR CO CO Ratio 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 manufacturer 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 ben
153. ting sys tems BS 7074 Application selection and installation of expan sion vessels and ancillary equipment for sealed water systems Part 1 Code of practice for domestic heating and hot water Part 2 Code of practice for low and medium temperature hot water systems BS 7593 Code of practice for treatment of water in domestic hot water central heating systems BS EN 13831 Closed expansion vessels with built in dia phragm BS EN 14336 Heating systems in buildings Installation and commissioning of water based heating systems BS 5440 1 Installation of flues and ventilation for gas appliances of rated input not exceeding 70 kW BS 5440 2 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW 1st 2nd and 3rd family gases BS EN 6798 Installation amp maintenance of gas fired hot water boilers of rated input not exceeding 70 kW net Institute of Gas Engineers Publications IGE UP 1B Edition 2 Tightness testing and direct purg ing of small natural gas installations IGE UP 7 Edition 2 Gas in timber and light steel framed buildings IS 813 Domestic Gas Installations 2nd edition Ire land BS 5482 Part 1 Domestic butane and propane gas burning installations 2 5 2 Installation site The location chosen for the boiler must permit the provi sion of a satisfactory flue termination The location must also provide adequate space for servicing and air circula tion aroun
154. tion turquoise D lS 9 Appliance earth variant dependent 8 4 Connection diagram for electronics box ecoTEC plus 637 Installation and maintenance instructions ecoTEC plus OO20116700 03 33 X51 k X22 Pump PWM signal Display 8D A onnection X Gas valve 3 i gt 1E ieee A Holding magnet t ma X25 IR el N white 10 3 3 M Stepper motor l 5 4 44 z 9 gt 3 Mass flow 6 2 T sensor 12 T 8 gt 1 lt 7 iM Diverter A valve 18 44 14 44 1 Water pressure 13 4 z sensor X2 11 2 T 4 blue 3 x z Impeller Zz 6 i 5 sensor orange sm A Warm start sensor I p gt l violet Za ra Hot water sensor Z T 5 gt 7 5 red Es Flow sensor 2 i blue a za Return sensor A 12 gt l X2013 si Safety fuse pink 22 i gt Coding resistor output range 15 16 gt t 4 gt t 3 gt 17 4 X24 3 gt coding resi nite 7 D Coding resistor gas group Circulation pump remote control X41 External sensor External temperature sensor ak Edge DCF connection connector Earth L Earth 5 2 l O blue amp l5 Conta
155. tory for operation on the gas group defined on the identification plate No measurement of the combustion is necessary to set up the boiler If a gas conversion to liquid gas has been carried out by Vaillant Service Solutions the smallest possible partial load is higher than is shown in the display The current values can be found in the technical data 2 section 17 Do not adjust the gas valve gt Ensure that the boiler has been installed in accordance with these instructions the integrity of the flue system and the flue seals as described in the gt flue installation instructions enclosed with this boiler and as described below a visual check is carried out on the boiler combustion circuit and the relevant seals that any defects have been corrected at this stage To further validate the integrity of the flue system and con firm correct operation of the boiler it is possible to conduct Installation and maintenance instructions ecoTEC plus 0020116700_03 flue gas and air measurements on this boiler for details see section gt section 10 11 2 Proceed to put the boiler into operation as follows gt Check the maximum gas flow rate as detailed in gt sec tion 10 11 3 gt Check the gas inlet working pressure as detailed in gt section 10 11 4 gt Note that you must re measure the gas flow rate or the gas inlet working pressure if changes were required to correct any issues found 10 11 2 Checking f
156. urging the liquid gas tank when installing the system gt Before installing the boiler make sure that the gas tank has been purged The liquid gas supplier is responsible for proper ventilation of the tank Ignition problems can result if the tank is not purged properly gt In such cases first contact the person in charge of filling the tank gt Also observe the information on conversion to liquid gas in gt section 10 11 of this manual Using the correct gas group Using the wrong gas group may cause a fault shutdown on the boiler Furthermore ignition and combustion noise may occur in the boiler gt Only use propane gas G31 Affix tank sticker Affix the enclosed tank sticker propane quality to the tank where it will be clearly visible or on then cylinder cabinet near the filler nozzle if possible 2 5 General reguirements 2 51 Related documents To ensure the safe installation and continued satisfactory operation of your appliance all works shall be carried out by a competent installer fully conversant with the reguired current and up to date acts standards laws and regulations relevant for this range of equipment at the time of installa tion In addition any special requirements of Local Authori ties gas undertakings or insurers must be complied with Installers shall carryout a full site risk assessment and put into place all necessary steps and procedures to comply with Health and safety at wor
157. uring heating mode and may lead to other consequential damage gt Do not use any unsuitable frost or corrosion protection agents Mixing additives with the heating water can result in mate rial damage However no incompatibility with Vaillant boil ers has been detected with proper use of the following products over a long period gt When using additives follow the manufacturer s instruc tions without exception Vaillant accepts no liability for the compatibility of any addi tive or its effectiveness in the rest of the heating installa tion 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 system Fernox Antifreeze Alphi 11 Sentinel X 500 gt Inform the operator of the necessary measures if you have used these additives gt Inform the operator about the required measures for frost protection Permissible water hardness gt Observe all valid national and technical regulations when conditioning filling and supplementary water 10 Provided the national regulations and technical standards do not stipulate more stringent requirements the following applies gt You must condition the heating water in the following cases If the entire filling a
158. where practical gt Obtain firm grip on front and sides of appliance lift upwards ensure stable balance achieved and lift upwards to drop into place onto bracket gt If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler gt Ensure co ordinated movements during 2 person lifts to ensure equal spread of weight of load gt If1person positioning onto bracket recommend obtain firm grip supporting base of boiler gt Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level gt Do not twist reposition feet instead gt Keep boiler as close as possible to body throughout lift to minimise strain on back gt Always use assistance if required gt Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance gt It is recommended a risk assessment of the roof space area be carried out before moving the appliance into the area to take into account access stability of Installation and maintenance instructions ecoTEC plus 0020116700_03 flooring lighting and other factors and appropriate measures taken 4 4 Requirements for the installation site 4 41 Required minimum clearances installation clearances gt When using accessories observe the minimum clear ances installation clearances gt fig 4 3 Vaillant 4 3 Recommen
159. wo cap nuts at the top 5 gt fig 14 8 and bottom 4 gt fig 14 8 of the gas valve Counterhold at opposite side of gas valve when unscrewing or unscrew both cap nuts at the same time gt Unscrew the fixing screw of the gas valve 3 gt fig 14 8 out of the bracket gt Remove the gas valve from the bracket gt Refit the new gas valve in the reverse order Use new seals gt When the cap nuts are being screwed to the gas valve counterhold at the opposite side of the gas valve or tighten both cap nuts simultaneously gt fig 14 6 gt After installing the new gas valve perform a gas family check section 12 1 5 and a gas ratio setting gt section 10 11 Since the fixing screw is difficult to access beneath the retaining plate alternatively you can remove the entire fan assembly gt section 14 3 14 5 Replacing the venturi including the mass flow sensor 14 9 Replacing the venturi including the mass flow sensor gt Remove the air intake pipe gt section 12 4 1 gt Remove the plug from the sensor of the venturi 1 gt fig 14 9 gt Unscrew the cap nut 3 gt fig 14 9 of the gas connecting pipe 2 gt fig 14 9 from the gas valve gt Remove the venturi including the gas supply pipe from the fan by turning the bayonet fitting on the venturi anti clockwise as far as it goes and removing it from the fan 14 10 Removing the gas connecting pipe gt R

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