Vaillant ecoTEC plus 938 Installation And Maintenance Instructions Manual Download

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Installation and maintenance instructions

ecoTEC plus

VUI 286/5-5 (H-GB) ecoTEC plus 938

0020244998_04 - 29.07.2020

Summary of Contents for ecoTEC plus 938

Page 1: ...en Installation and maintenance instructions ecoTEC plus VUI 286 5 5 H GB ecoTEC plus 938 0020244998_04 29 07 2020...

Page 2: ...itching the product on and off 28 9 3 Running the installation assistants 28 9 4 Restarting the installation assistants 28 9 5 Test programmes 28 9 6 Performing a gas family check 29 9 7 Using check p...

Page 3: ...oning 47 14 1 Temporarily decommissioning the product 47 14 2 Permanently decommissioning the product 47 15 Recycling and disposal 47 Appendix 48 A Inspection and maintenance work 48 B Installer level...

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: ...e to frost 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...

Page 7: ...illant 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 Benchma...

Page 8: ...g VUW 17 kg VIHCL Operating weight with water 51 kg VUW 32 kg VIHCL Shift load cylinder capa city 15 l Technical data G20 power loading G20 VUI 286 5 5 H GB ecoTEC plus 938 Nominal heat output range P...

Page 9: ...lus 938 Electrical power con sumption standby 2 7 W VUW 2 0 W VIHCL Level of protection IP X4 D 4 Notes on the documentation Always observe all operating instructions enclosed with the installation co...

Page 10: ...rature ED 92 42 Current efficiency directive fulfilled with 4 rating V Hz Mains voltage and mains frequency W Max electrical power consumption IP Level of protection Heating mode Hot water generation...

Page 11: ...igned to recognise the potential for an overheat lockout and will shutdown before this happens To restart the boiler press the reset button on the boiler interface If the boiler fails to resume normal...

Page 12: ...inder out connection pipe 1 Drain hose for the expansion relief valve on the shift load cylinder 1 Bag with small parts 1 Heat generator installation kit containing the following 1 Connector for the e...

Page 13: ...um clearance of 5 mm is maintained around the circumference of the flue air intake 2 The combustible surface and fixings are suitable for supporting the load 3 The minimum clearances from the boiler c...

Page 14: ...arance to noncombustible building material 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...

Page 15: ...oid wall staining and nuisance from pluming depending on site conditions Terminals must be positioned so to avoid combustion products entering the building Support the flue at approximately one metre...

Page 16: ...ard is required if persons could come into con tact with the terminal or the terminal could be subject to dam age If a terminal guard is required it must be positioned to provide minimum of 50 mm clea...

Page 17: ...accessories and how to install the flue system 6 7 Using the installation template Use the installation template to ascertain the locations at which you need to drill holes and make breakthroughs 6 8...

Page 18: ...Caution Risk of material damage caused by mech anical deformation Removing both side sections may cause mechanical distortion in the product which may cause damage to the piping for ex ample and pote...

Page 19: ...tional expansion vessel connected as close to the product as possible in the heating return Condition External expansion vessel installed and warm start active Install a non return valve in the produc...

Page 20: ...he waste water pip ing 1 2 3 min 180 The product is equipped with a condensate trap 2 The condensate trap collects the condensate that has formed in a vessel with a volumetric capacity of approximatel...

Page 21: ...y si phonic action It is not necessary to provide extra traps in the discharge pipe as there is already a trap inside the boiler Fitting an extra trap may cause the boiler siphon to work in correctly...

Page 22: ...undish 3 Using a pipe 7 8 1 9 Connection of condensate pump 32mm 22mm 3 m Preferred option for external connection 7 9 Installing the discharge pipe on the expansion relief valve 1 Install the dischar...

Page 23: ...nstall the air flue pipe using the set up instructions 7 11 2 Replacing the connector for the air flue pipe as required 1 Replace the connector for the air flue pipe as required The product specific s...

Page 24: ...he respective plug to the connection cable 8 Check whether all conductors are sitting mechanically securely in the terminals of the plug Remedy this if necessary 9 Plug the plug into the associated PC...

Page 25: ...3 mm e g fuses or power switches Use a flexible line for the power supply cable which is routed through the grom met into the product 1 Open the electronics box Page 24 2 Detach the plug from the PCB...

Page 26: ...mponents connected to relay 1 Activate D 027 Page 35 Condition Components connected to relay 2 Activate D 028 Page 35 7 12 8 Actuating the circulation pump according to requirements 1 Carry out the wi...

Page 27: ...competent person 2 Navigate to Menu Installer level and confirm by pressing 3 Set the value 17 code and confirm by pressing 8 3 Live Monitor status codes Menu Live monitor Status codes in the display...

Page 28: ...and until 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 all...

Page 29: ...ns on the product Check programmes Overview Page 60 9 8 Checking and treating the heating water filling and supplementary water Caution Risk of material damage due to poor qual ity heating water Ensur...

Page 30: ...or frost protection 9 9 Filling the condensate trap 1 1 Remove the lower section from the condensate trap 1 2 Fill the lower section with water up to 10 mm below the upper edge 3 Attach the lower sect...

Page 31: ...ose all purging valves 13 Monitor the rising filling pressure in the heating installa tion 14 Fill with water until the required filling pressure is reached 15 After filling close both stop valves and...

Page 32: ...me P 01 In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo stat Wait at least 5 minutes until the boiler has reached its operating temperature...

Page 33: ...check programme P 01 Allow the boiler to cool down allowing pump overrun to operate for a minimum of two minutes Close the gas stopcock Remove the pressure gauge and retighten the sealing screw 1 for...

Page 34: ...ed with an inhibitor it should be applied at this stage in accordance with the manufacturer s instructions 8 Install the front casing 9 17 Checking leak tightness Check the gas pipe the heating circui...

Page 35: ...3 5 4 5 5 5 6 5 70 2 0 1 5 2 0 2 5 2 5 3 0 3 5 75 2 0 1 0 1 0 1 0 1 0 1 0 1 0 TFlow target C Set maximum burner anti cycling time min 35 40 45 50 55 60 30 29 0 33 0 37 0 41 0 45 0 49 5 35 25 5 29 5 33...

Page 36: ...evant sec tions of the Benchmark commissioning checklist located at the rear of this document For IE Complete a Declaration of Conformity to indicate compliance to I S 813 An example of this is given...

Page 37: ...duct 2 Disconnect the product from the power grid 3 Remove the front casing Page 17 4 Close the gas stopcock 5 Close the service valves in the heating flow and in the heating return 6 Close the servic...

Page 38: ...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 rep...

Page 39: ...mating surfaces Tightening torque 6 Nm if a torque spanner is avail able 3 Reconnect the plugs 3 to 7 4 Connect the gas pipe using a new seal In the process secure the gas pipe against twisting 5 Ope...

Page 40: ...e cover 10 Repressurise the heat generator and the domestic hot water system 12 17 Checking the filling pressure of the heating installation 1 Check the filling pressure of the heating installation to...

Page 41: ...ress twice to delete the fault list 13 4 Resetting parameters to factory settings 1 Navigate to Menu Installer level Diagnostics menu D 096 Reset to factory settings and con firm by pressing 2 Set the...

Page 42: ...he Venturi anti clockwise as far as it goes and remov ing it straight from the fan 1 2 11 Remove the gas valve assembly retainer 1 from the fan by unscrewing the three screws 2 12 Replace the defectiv...

Page 43: ...ide of the gas valve assembly 4 and 5 9 After installing the new gas valve assembly perform a leak tightness test Page 34 gas family check Page 29 and gas setting Page 31 13 6 4 Replacing the Venturi...

Page 44: ...ainer 9 Swing the retainer to the side around the top screw 1 10 Pull the heat exchanger downwards and to the right and remove it from the product 11 Install the new heat exchanger in reverse order 12...

Page 45: ...rd 4 Open the electronics box 5 Pull the X12 plug out of the PCB 6 Pull the free end of the line carefully through the grom mets on the heat generator and on the shift load cylin der 7 Detach the pump...

Page 46: ...isplay according to the assembly and installation instructions supplied X31 X12 1 3 If you are replacing the PCB remove the coding res istor 1 plug X24 from the old PCB and plug the plug onto the new...

Page 47: ...Check that the product is leak tight Page 34 14 Decommissioning 14 1 Temporarily decommissioning the product Press the on off button The display goes out Close the gas stopcock For products with domes...

Page 48: ...ually 11 Checking and if required adjusting the CO content and the CO CO ratio air ratio setting Annually 33 12 Logging the CO2 content air ratio and CO CO2 ratio Annually 13 Disconnect the product fr...

Page 49: ...competent person code 17 Installer level Fault list F XX F XX Current value Installer level Test programs Gas family check Current value LPG natural gas Installer level Test programs Check programs P...

Page 50: ...ion 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 valve not active 2 Heating partial load...

Page 51: ...ctive 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 display...

Page 52: ...n Not 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...

Page 53: ...nal pump 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 Sol...

Page 54: ...heating 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...

Page 55: ...s actoSTOR 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 f...

Page 56: ...ated S 17 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 do...

Page 57: ...Since the code table is used for various products some codes may not be visible for the product in question Message Possible cause Measure F 00 Interruption Flow sensor Flow temperature sensor de fect...

Page 58: ...ted intermit tently Re ignition failed Check Flue gas recirculation condensate route blockage earthing cable to the gas valve assembly and electrode loose connection F 32 Fault Fan Fan defective or no...

Page 59: ...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 connected Check...

Page 60: ...cycles 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 Pr...

Page 61: ...6 3 3 1 4 2 1 3 L N X16 L N 1 2 3 8 17 7 18 6 4 3 1 M 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 X3...

Page 62: ...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 63: ...r and 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 man...

Page 64: ...left at 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...

Page 65: ...R delete 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...

Page 66: ...R delete 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...

Page 67: ...specify how to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas...

Page 68: ...Flexible hose expansion relief valve on the shift load cylinder 23 Frost protection 11 Function menu 37 60 G Gas conversion 31 Gas Council Number 9 Gas family check performing 29 Gas flow rate 32 Gas...

Page 69: ...lacing 46 Shift load cylinder PCB replacing 46 Shift load cylinder connecting 24 Shift load cylinder heat generator pipe connections 20 Side section installing 18 Side section removing 18 Spare parts...

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Page 72: ...lisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 492191 18 0 Fax 492191 18 2810 info vaillant de www vaillant de These instructions or parts thereof are protected by copyright...

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Vaillant ecoTEC plus 938, Installation And Maintenance Instructions Manual

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