Vaillant ecoTEC plus VU 6/5-5 Series Installation And Maintenance Instructions Manual Download

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0020244997_07 Installation and maintenance instructions

13.6

Replacing defective components......................... 46

13.7

Completing repair work........................................ 50

13.8

Checking the product for leak-tightness .............. 50

Decommissioning.............................................. 50

14.1

Temporarily decommissioning the product.......... 50

14.2

Permanently decommissioning the product......... 50

Recycling and disposal..................................... 50

Appendix ............................................................................ 51
A

Inspection and maintenance work................... 51

Installer level

–

Overview .................................. 52

Overview of diagnostics codes........................ 54

Status codes

–

Overview .................................. 59

Overview of fault codes .................................... 60

Check programmes

–

Overview ....................... 63

Function menu

–

Overview ............................... 63

Wiring diagrams................................................. 64

H.1

Wiring diagram, product for heating mode
only, 12 - 35 kW................................................... 64

H.2

Wiring diagram, product for heating mode
only,

≥

37 kW....................................................... 66

H.3

Wiring diagram, product with integrated
domestic hot water generation, 12

–

35 kW .......... 68

H.4

Wiring diagram, product with integrated
domestic hot water generation,

≥

37 kW ............. 70

Commissioning Checklist................................. 72

Commissioning Flow Chart .............................. 76

Index ................................................................................... 77

Summary of Contents for ecoTEC plus VU 6/5-5 Series

Page 1: ...en Installation and maintenance instructions ecoTEC plus VU VUW 6 5 5 0020244997_07 15 07 2021...

Page 2: ...the installation assistants 32 9 4 Restarting the installation assistants 32 9 5 Test programmes 32 9 6 Performing a gas family check 33 9 7 Using check programmes 33 9 8 Checking and treating the hea...

Page 3: ...work 51 B Installer level Overview 52 C Overview of diagnostics codes 54 D Status codes Overview 59 E Overview of fault codes 60 F Check programmes Overview 63 G Function menu Overview 63 H Wiring di...

Page 4: ...direct use in industrial or commercial processes Any use other than those described in these instructions and any use that goes beyond what is described here 1 2 Qualification The person carrying out...

Page 5: ...ply Unsuitable or insufficient combustion and room air may lead to material damage but also to life threatening situations To ensure that the combustion air supply is sufficient during open flued oper...

Page 6: ...rost 1 3 11 Safety devices Install the necessary safety devices in the installation 1 3 12 Risk of death from leaks if the product is installed below ground level Liquid gas accumulates at floor level...

Page 7: ...group com Spares Enquiries Telephone 01773 596 615 To register your Vaillant appliance visit https self service vaillant co uk warranty registration Vaillant is a licensed member of the Benchmark Sch...

Page 8: ...ar 2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar G31 propane gas flow pressure 3 7 kPa 37 0 mbar Gas flow rate at 15 C and 1013 mbar based on domestic hot water generation if...

Page 9: ...2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar G31 propane gas flow pressure 3 7 kPa 37 0 mbar 3 7 kPa 37 0 mbar Gas flow rate at 15 C and 1013 mbar based on domestic hot water generation if ap...

Page 10: ...gas flow pressure 2 0 kPa 20 0 mbar G31 propane gas flow pressure Gas flow rate at 15 C and 1013 mbar based on domestic hot water generation if applicable G20 4 2 m h Gas flow rate at 15 C and 1013 mb...

Page 11: ...107 0 107 0 Nominal heat input ef ficiency stationary at 50 30 C 106 0 108 0 108 0 107 0 106 0 106 0 Nominal heat input ef ficiency stationary at 60 40 C 101 0 101 0 101 0 101 0 101 0 101 0 Nominal h...

Page 12: ...6 5 5 H GB ecoTEC plus 630 Maximum flow temperat ure 85 85 85 85 85 85 Max flow temperature adjustment range default setting 75 C 30 to 80 30 to 80 30 to 80 30 to 80 30 to 80 30 to 80 Permissible oper...

Page 13: ...t ure 85 Max flow temperature adjustment range default setting 75 C 30 to 80 Permissible operating pressure 0 25 MPa 2 50 bar Minimum pressure for full operation 0 08 MPa 0 80 bar Expansion vessel cap...

Page 14: ...306 5 5 P GB ecoTEC plus 630 VU 386 5 5 H GB ecoTEC plus 637 VUW 196 5 5 H GB ecoTEC plus 825 VUW 246 5 5 H GB ecoTEC plus 832 VUW 246 5 5 P GB ecoTEC plus 832 VUW 306 5 5 H GB ecoTEC plus 835 Electr...

Page 15: ...onsumers to choose products that have met strict energy performance criteria Available for Boilers Heating controls and chemical inhib itors the Energy Saving Trust endorsed product brandmark gives co...

Page 16: ...valve assembly 2 Water pressure sensor 3 Venturi with mass flow sensor 4 Heat exchanger 5 Connection for the air flue pipe 6 Flue gas test point 7 Expansion vessel 8 Air intake pipe 9 Compact thermal...

Page 17: ...ing company or Vaillant service 5 7 3 Frost protection The appliance has a built in frost protection device that pro tects the boiler from freezing With the gas and electric sup plies ON and irrespect...

Page 18: ...xpansion relief valve connection pipe 1 Gas connection pipe 2 Heating flow return connection pipe 2 Cold water domestic hot water connection pipe 4 Service valve 3 Bag with small parts 1 Double Check...

Page 19: ...e work may be provided by an opening door It is not necessary to maintain a clearance between the product and components made of combustible materials that go beyond the minimum clearances 6 5 Compart...

Page 20: ...aterial Vertical flue clearance to combustible building material 500 mm 1 500 mm J Above below and either side of an opening door air vent or opening window 300 mm K Diagonally to an opening door air...

Page 21: ...pluming depending on site conditions Terminals must be positioned so to avoid combustion products entering the building Support the flue at approximately one metre intervals and at a change of direct...

Page 22: ...of the terminal and be central over the terminal The guard should be similar to that shown in the figure 6 6 3 3 Vertical Concentric Flue 60 100 mm or 80 125 mm C33 type installation Consult the separ...

Page 23: ...the side section 6 10 1 Removing the side section 2x B A C D Caution Risk of material damage caused by mech anical deformation Removing both side sections may cause mechanical distortion in the produc...

Page 24: ...due to backflow 6 Install the connection pipes such that they are free from mechanical stress 7 If you use non diffusion tight plastic pipes in the heat ing installation ensure that no air gets into t...

Page 25: ...ith the removal and fitting of the lower section of the condensate trap 2 Install the drain pipe as shown do not shorten 3 Make sure that the end of the pipe is visible 4 Ensure that discharged water...

Page 26: ...and build into a larger ice plug 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...

Page 27: ...te in rain water drain 7 10 1 6 Internal termination downstream of sink waste 100mm 32mm 22mm 3 m Open end of pipe direct into gulley below ground level but above water level Susceptible to siphonage...

Page 28: ...he test points 2 Press the screwdriver carefully down 1 3 Turn the connector anti clockwise 2 as far as it will go and then remove it by pulling it upwards 3 7 11 2 2 Installing the connector for the...

Page 29: ...e elec tronics box and screw the plug onto the power supply cable 11 Close the electronics box 12 Make sure that access to the power supply is always available and is not covered or blocked 7 12 4 Ins...

Page 30: ...Using the VR 40 2 in 7 multi functional module 1 Install the components in accordance with the respect ive instructions Condition Components connected to relay 1 Activate D 027 Page 39 Condition Compo...

Page 31: ...ng 3 Set the value 17 code and confirm by pressing 8 3 Live Monitor status codes Menu Live monitor Status codes in the display provide information on the pro duct s current operating mode Status codes...

Page 32: ...the display shows the language setting option Select the required language Press twice to confirm this change 9 3 2 Filling mode Filling mode check programme P 06 is activated automatic ally in the i...

Page 33: ...e product Check programmes Overview Page 63 9 8 Checking and treating the heating water filling and supplementary water Caution Risk of material damage due to poor qual ity heating water Ensure that t...

Page 34: ...the lower section from the condensate trap 1 2 Fill the lower section with water up to 10 mm below the upper edge 3 Attach the lower section to the condensate trap 9 10 Preventing low water pressure...

Page 35: ...sure in the heating installa tion Fill with water until the required filling pressure is reached After filling close both isolation valves and disconnect the filling device by removing the double non...

Page 36: ...installation instructions 2 For extended flue gas installations check for flue gas recirculation using the air analysis point 3 Use a flue gas analyser 4 If you discover unusual levels of CO or CO 2 i...

Page 37: ...verrun to operate for a minimum of two minutes Close the gas stopcock Remove the pressure gauge and retighten the sealing screw 1 for the measuring nipple Open the gas stopcock Check the test nipple f...

Page 38: ...Shut off the boiler open the drain valve and all purge valves on the radiators and allow the water to flow out of the heating system and the boiler quickly and fully 5 Close the drain valve 6 Fill th...

Page 39: ...Heating and confirm by pressing 2 Set the burner anti cycling time and confirm by press ing TFlow tar get C Set maximum burner anti cycling time min 1 5 10 15 20 25 30 30 2 0 4 0 8 5 12 5 16 5 20 5 25...

Page 40: ...ic line for VU 306 VUW 306 VUW 356 400 300 200 100 0 0 200 400 600 800 1000 1200 1600 1800 1400 Flow rate l hr Remaining feed head hPa 100 PWM 85 70 60 53 10 3 1 4 Pump characteristic line for VUW 246...

Page 41: ...the instructions to the front of the product in the end user s language Draw attention to the current issue of the Gas Safety Installation and Use Regulations Section 35 which imposes a duty of care o...

Page 42: ...2 Disconnect the product from the power grid 3 Remove the front casing Page 23 4 Close the gas stopcock 5 Close the service valves in the heating flow and in the heating return 6 Close the service va...

Page 43: ...s accord ing to the following sections 16 Fit a new burner flange seal 17 Check the insulating mat on the burner flange and on the back panel of the heat exchanger If you notice any signs of damage re...

Page 44: ...he diagonal until the burner flange fits closely and uniformly onto the mating surfaces Tightening torque 6 Nm if a torque spanner is available 3 Reconnect the plugs 3 to 7 4 Connect the gas pipe usin...

Page 45: ...nu Overview Page 63 Check programmes Overview Page 63 If several faults occur at the same time the display shows the corresponding fault messages for two seconds each in alternation Press max three ti...

Page 46: ...ng in the latching lug in each case 5 Unscrew the two union nuts 7 and 6 on the gas valve assembly Use an open ended spanner to coun terhold the opposite side of the gas valve assembly when unscrewing...

Page 47: ...Unscrew the two union nuts 5 and 4 on the gas valve assembly Use an open ended spanner to coun terhold the opposite side of the gas valve assembly 4 and 5 when unscrewing 5 Either remove the unit comp...

Page 48: ...als for this 12 After installing the new Venturi carry out a gas setting Page 36 13 If you cannot adjust the CO2 content the gas injector has been damaged during installation In this case replace the...

Page 49: ...nics box Page 28 2 Replace the PCB and display according to the set up and installation instructions supplied X31 X12 1 3 Remove the coding resistor 1 plug X24 from the old PCB and plug the plug into...

Page 50: ...ss the on off button The display goes out Close the gas stopcock For products with domestic hot water generation and products with a connected domestic hot water cylinder you must also close the cold...

Page 51: ...out the combustion analysis Measure the CO content CO content and the CO CO ratio For products with a rear air flue connection The combustion analysis can only be carried out when the unit casing has...

Page 52: ...F XX Current value Installer level Test programs Gas family check Current value LPG natural gas Installer level Test programs Check programs P 00 Purging Yes No P 01 Maximum load Yes No P 02 Minimum...

Page 53: ...od 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Anti legionella pump not active 10 Solar valve not active 2 Heating partial load kW Par...

Page 54: ...8 eBUS remote control not active 9 Anti legionella pump not active 10 Solar valve not active 2 Contact details Phone number 0 9 End the installation assistant Yes No Fault lists are only displayed and...

Page 55: ...ad justable D 016 Controller 24 V DC Heating mode Heating mode off on Not ad justable D 017 Control type Control type 0 Flow 1 Return Return Automatic detection function for heat output inactive Max p...

Page 56: ...mp 3 Cylinder charging pump 4 Extraction hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Anti legionella pump not active 10 Solar val...

Page 57: ...g position 0 Normal operating mode D 071 Max heating target flow temp 40 to 80 75 D 072 Pump overrun after cylinder char ging Adjustable from 0 10 minutes in increments of 1 minute 2 mins D 073 Offset...

Page 58: ...STOR module was previously detected 2 Connection active Not ad justable D 093 Adjust Device Specific Number Device Specific Number DSN Adjustment range 0 to 99 D 094 Clear fault history Delete fault l...

Page 59: ...DHW mode Pump over run The pump overrun for domestic hot water mode is activated S 20 DHW demand The domestic hot water demand is activated S 21 DHW mode Fan start up The fan start up for domestic ho...

Page 60: ...sed for various products some codes may not be visible for the product in question Code meaning Possible cause Measure F 00 Flow temperature sensor interruption Flow temperature sensor de fective or n...

Page 61: ...route blockage earthing cable to the gas valve assembly and electrode loose connection F 32 Fault Fan Fan defective or not connected Check Plug cable harness fan blockage function correct speed Hall s...

Page 62: ...ed 1 Check Accessory configuration electrical connection 2 The unit displays a fault but the unit has not malfunctioned F 80 Fault actoSTOR inlet sensor Inlet temperature sensor defect ive or not conn...

Page 63: ...les 30 sec on 20 sec off Display Active heating circuit Purging the domestic hot water circuit After the above mentioned cycles have run or the right hand selection button has been pressed again Prior...

Page 64: ...N L RT N X16 L N 1 2 3 8 17 7 18 6 4 3 1 M C1 C2 16 4 3 17 5 7 8 5 4 2 1 Masse PWM Hallsignal 24V 15 2 13 12 Burner Off BUS RT 24V X100 12 6 9 4 2 10 1 11 3 5 1 2 7 8 2 4 X24 17 3 X30 X40 X51 X35 X31...

Page 65: ...mperature sensor 9 Flow temperature sensor 10 Fan 11 Surface mounted thermostat burner off 12 24 V DC room thermostat 13 Bus connection digital room thermostat control 14 Prioritising diverter valve 1...

Page 66: ...nal 24V 15 2 13 12 Burner Off BUS RT 24V X100 12 6 9 4 2 10 1 11 3 5 1 2 7 8 2 4 X24 17 3 X30 X40 X51 X35 X31 X22 X90 2 1 T2 Fuse X12 X25 X2 Opt X16 Fan X11 X18 CH Pump X24 X20 24V RT BUS Burner off X...

Page 67: ...r off 12 24 V DC room thermostat 13 Bus connection digital room thermostat control 14 Prioritising diverter valve 15 Water pressure sensor 16 Cylinder temperature sensor 17 Cylinder contact C1 C2 18 G...

Page 68: ...ignal 24V 15 2 13 12 Burner Off BUS RT 24V X100 12 6 9 4 2 10 1 11 3 5 1 2 7 8 2 4 X24 17 3 X30 X40 X51 X35 X31 X22 X90 2 1 T2 Fuse X12 X25 X2 Opt X16 Fan X11 X18 CH Pump X24 X20 24V RT BUS Burner off...

Page 69: ...12 24 V DC room thermostat 13 Bus connection digital room thermostat control 14 Prioritising diverter valve 15 Water pressure sensor 16 Impeller sensor 17 Warm start sensor 18 Domestic hot water senso...

Page 70: ...15 2 13 12 Burner Off BUS RT 24V X100 12 6 9 4 2 10 1 11 3 5 1 2 7 8 2 4 X24 17 3 X30 X40 X51 X35 X31 X22 X90 2 1 T2 Fuse X12 X25 X2 Opt X16 Fan X11 X18 CH Pump X24 X20 24V RT BUS Burner off X100 X1 X...

Page 71: ...12 24 V DC room thermostat 13 Bus connection digital room thermostat control 14 Prioritising diverter valve 15 Water pressure sensor 16 Impeller sensor 17 Warm start sensor 18 Domestic hot water senso...

Page 72: ...they should be made aware it is ultimately their responsibility to register with the manufacturer within the allotted time period It is essential that the boiler is serviced in line with the manufactu...

Page 73: ...t factory settings Yes No If no what is the maximum central heating output selected kW Dynamic gas inlet pressure mbar C Central heating return temperature C System correctly balanced rebalanced Yes C...

Page 74: ...te as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate CO ppm CO CO CO Min rate CO ppm CO CO CO undertaken in accordance with manufacturers instructions and r...

Page 75: ...te as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate CO ppm CO CO CO Min rate CO ppm CO CO CO undertaken in accordance with manufacturers instructions and r...

Page 76: ...y how to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas sampli...

Page 77: ...45 Fault memory calling up 45 Fault memory deleting 45 Fault messages 45 Filling 35 Filling mode 32 Frost protection 17 Function menu 42 63 G Gas conversion 36 Gas Council Number 15 Gas family check p...

Page 78: ...ng 23 Side section removing 23 Spare parts 45 Status codes 31 Switching off 32 Switching on 32 T Target feed temperature 32 Technical data 8 Telephone number competent person 32 Test programmes 32 63...

Page 79: ......

Page 80: ...isher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 2191 18 0 Fax 49 2191 18 2810 info vaillant de www vaillant de These instructions or parts thereof are protected by copyrigh...

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