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Installation manual ecoTEC plus 937 installation & service manual

1. Code Parameters Adjustable values Factory set Ur own ting 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 OOT Overrun time of internal heating pump 1 60 min 5 min for heating mode D 002 Max burner anti cycling time heating 20 min at 20 C flow temperature D OO3 Outlet temp actual value Not adjusta ble D OO4 Measured value of hot water sensor IneC Not adjusta ble D OOS Flow temperature target value or In C max of the value set in d 071 limited by an eBUS Not adjusta return target value controller if connected ble D OO6 Hot water temperature target value 35 to 65 C Not adjusta ble D OO7 Warm start temperature target value 40 to 65 C Not adjusta ble D OO8 Room thermostat at terminal RT Room thermostat open no heat requirement Not adjusta Room thermostat closed heat requirement ble D OO9 Target value from external eBus con In C Not adjusta troller ble D 010 Status of internal heating pump On Off Not adjusta ble D ON Status of external heating pump On Off Not adjusta ble D O12 Status of cylinder charge pump On Off Not adjusta ble D O13 Status of hot water circulation pump On Off Not adjusta ble D O14 Target pump speed high efficiency Not relevant Not adjusta pump ble D O15 Actual pump speed high efficiency Not relevant Not adjusta
2. 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 programme P OO to purge the system gt sec tion 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 hand selection button Installation and maintenance instructions ecoTEC plus 0020134833_01 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 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 The setting can also be changed later using diagnostics code D OOO If you have activated the return flow tempera i ture control unde
3. 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 35 mm in domestic premises BS 4814 Specification for Expansion vessels using an internal diaphragm for sealed hot water and heating 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 BS EN 13831 Closed expansion vessels with built in dia phragm BS EN 14336 Heating systems in buildings
4. gt Ensure safe lifting techniques are used keep back straight bend using legs gt Do not twist reposition feet instead gt Take care to avoid trip hazards slippery or wet surfaces and climbing steps and stairs gt Always use assistance if required Installation and maintenance instructions ecoTEC plus 0020134833_01 Carriage of carton from point of delivery to point of installation roofspace gt gt gt 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 in 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 gt gt VY VY VV Recommend 2 persons unp
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 built 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 0020134833_01 Index A Neel de dl tovine ier nee N iN RETAS NS
6. EN 61000 3 2 EN 61000 3 3 1 6 Benchmark Vaillant Ltd supports the Benchmark 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 DCNCHINIGT COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS 1 7 Type overview Designated country Unit type designation in Approval cate ecoTEC plus accordance with ISO gory 3166 GB Great Britain 937 VUI GB 376 5 5 IE Ireland llaH3p 1 2 Type overview 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 Installa
7. connected 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 gt Caution Risk of damage caused by incorrect installation A mains voltage at the incorrect plug termi nals on the ProE system may destroy the electronics gt Only connect the mains connection cable to the terminals marked for the purpose gt Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far may cause short circuits and dam age 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 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 Observe the latest edition of the IEE Wiring Regulations BS7671 Requirements for Electri cal 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 3 A rating Connection to the mains supply shall be made via a fused 3 pin plug to an unswitched shut tered socket both complying with the requirements of BS 1363 Alternatively connect
8. gt Only use propane gas G31 Affixing the tank sticker Affix the enclosed tank sticker propane quality to the tank where it will be clearly visible or on the cylinder cabinet near the filler nozzle if possible Installation and maintenance instructions ecoTEC plus 0020134833_01 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 work 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
9. Positioning of Appliance for Final Installation above worktop foreseeable obstructions etc gt gt If appliance weight is over 25 kg always use 2 persons to move where practical Fit bracket securely onto wall before lifting appliance into position Obtain firm grip on front and sides of appliance lift upwards onto worktop if practicable Ensure stable balance achieved and lift upwards to position in place on bracket If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler Ensure coordinated movements during 2 person lifts to ensure equal spread of weight of load Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level Do not twist reposition feet instead Keep boiler as close as possible to body throughout lift to minimise strain on back Avoid upper body top heavy bending do not lean forward sideways Always use assistance if required 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 within compartment etc restricting installation gt 16 If appliance weight is over 25 kg always use 2 persons to move where practical Fit bracket securely onto wall before lifting appliance into position Obtain firm grip on front and sides of appliance lift upwards onto worktop if p
10. 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 slow down S 26 DHW mode fan slow down 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 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 flow 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 The coding resistor on the PCB does not match the entered gas family see also F 92 13 1 Status codes
11. covers the use of electronic portable flue gas analysers in accordance with BS 7967 parts 1 to 4 The flue gas analyser is set to the correct fuel setting 58 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 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 eco TEC 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 tab 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 tab 12 3 Danger Risk of poisoning and burning caused by escaping hot flu
12. gas pressure regulator of the gas valve Es AM Z Ye Ae 3 gt PZ 3 4 Ts 10 5 Gas pressure regulator 10 12 1 Factory setting 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 up to about 10 mm below the upper edge gt Re attach the lower section to the condensate siphon Caution An incorrect gas group setting may 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 45 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 factory for operation
13. gt Only fit the correct spare part display 14 16 Replacing the impeller sensor gt Remove the discharge pipe 1 from the expansion relief valve on the boiler gt Remove the plug from the impeller sensor gt Loosen the screwed connections 2 and 3 on the angle pieces 4 and 5 gt Turn the impeller sensor slightly to the side and pull it downwards to remove it from the casing gt Remove the pipe elbow from the impeller sensor gt Fit the pipe elbow to the new impeller sensor and use new seals for it gt Install the new impeller sensor in reverse order and use new seals for it gt Insert the plug for the connection cable into the new impeller sensor gt Refit the discharge pipe 1 and use new seals gt Fill and purge the boiler and the layered storage tank Installation and maintenance instructions ecoTEC plus 0020134833_01 Comply with the assembly and installation instructions provided with the spare parts 81 14 11 1 Replacing either the display or the PCB on the boiler gt Replace the PCB or display according to the assembly and installation instructions supplied 14 17 Coding resistor If you replace the PCB you must remove the front left coding resistor 1 plug X24 on the old PCB and insert it into the new PCB If you are replacin
14. ing installation ideally with nitrogen otherwise with air Ensure that the drain valve on boiler is open when top ping up gt If water escapes from the measuring stub pipes 1 of the expansion vessel you must replace the expansion vessel 68 12 4 8 Check the pressure of the expansion vessel on the layered storage tank One check every three years is sufficient gt Close the stop valve on the hot water system gt Release the pressure from the boiler gt Unscrew the bolt from the cover of the layered storage tank and remove the cover 12 12 Check the pressure of the expansion vessel on the lay ered storage tank The expansion vessel 1 is freely accessible gt Unscrew the sealing cap 2 from the expansion vessel gt Check that the pressure of the expansion vessel is approx 4 bar At a lower pressure the vessel must be repressurised using an air pump gt Screw the sealing cap 2 back onto the expansion ves sel gt Refit the cover gt Repressurise the boiler and the hot water system 12 5 Checking the gas flow pressure gt Check the gas flow pressure gt section 10 12 4 12 51 Checking the CO content gt Check the CO content gt section 12 1 3 Installation and maintenance instructions ecoTEC plus 0020134833_01 13 Troubleshooting 13 1 Contact Vaillant Service Solutions 0870 6060 777 gt If you contact Vaillant Service Solutions 0870 6060 777 or your Vaillant
15. section 12 2 2 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 0020134833_01 83 15 3 Disposing of the boiler The Vaillant ecoTEC plus VUI 937 with layered storage tank onsists primarily of materials 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 84 16 Guarantee and customer service 16 1 Factory guarantee Two year guarantee for ecoTEC plus appliances Vaillant provides this appliance with a parts and labour guarantee against defects that may occur 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 Immediate help If your Vaillant boiler develops a fault your first action should be to contact your installer as his professional assessme
16. y You can display the last 10 faults that occurred using the minus button Jor the plus button L_ _ 13 2 7 Resetting the fault memory You can delete the entire fault list gt Press the right hand selection button Delete gt Confirm the deletion of the fault memory by pressing the right hand selection button again OK Installation and maintenance instructions ecoTEC plus 0020134833_01 13 2 8 Overview of fault codes F 70 13 2 Fault codes Code Meaning Cause F 00 Flow temperature sensor interruption NTC plug not plugged in or has come loose multiple plug on the PCB not plugged in correctly interruption in cable harness NTC defective F 01 Return temperature sensor interruption NTC plug not plugged in or has come loose multiple plug on the PCB not plugged in correctly interruption in cable harness NTC defective F 02 Interruption cylinder charging sensor 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 cable harness cable casing Fl Return NTC short circuit NTC defective short circuit in cable harne
17. y y y y y 50 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 menu point Menu gt Installer level gt Appliance configuration AIl of the settings for more complex systems can be found in the diagnostics menu Menu gt Installer level gt Diagnostics menu 11 1 Diagnostics codes Overview Menu gt Installer level gt Diagnostics menu With the use of the parameters that are marked as adjusta ble in gt tab 11 1 you can adapt the boiler to the heating installation and the needs of the customer gt Press the minus button C or the plus button to switch between the displayed diagnostics codes With modifiable parameters gt Press the right hand selection button Selec tion 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 hand selection button OK to confirm the change The change is saved You can enter your settings in the last column after setting the system specific parameters Installation and maintenance instructions ecoTEC plus 0020134833 OI1
18. 0 1 5 0 02 0 02 gt 200 to lt 600 150 2 0 2 0 0 02 0 02 0 02 gt 600 2 0 2 0 2 0 1 on systems with circulation water heaters and for systems with electric heating elements 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 fill ing 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 tab 2 2 were exceeded softening desali nation hardness stabilisation or desludging 2 LS 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 draining 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 fil
19. 0 MPa 1 2 1 050 h 170 mbar and 35 0 MPa 350 mbar Approx 25 0 MPa SQ 2 3 1150h PRAN i 250 mbar is pre set mid position The pressure changes 10 0 kW Se eae i by approx 1 0 MPa 10 mbar each time the adjusting screw r is rotated By turning right the pressure increases and turn 2 3 1 800 h ing left decreases it DY 3 4 1900 n i 3 4 2 600 h EO 4 5 2700 h 3 4 2 800 h OE 4 6 2 900 h 3 4 3 000 h gt 27 0 kW 4 6 3 000 h 11 1 Setting the bypass valve gt Regulate the pressure using the setting screw 1 Installation and maintenance instructions ecoTEC plus 0020134833_01 rn Pressure RE en of the set in MPa Notes application ing screw mbar If the radiators do not get Right hand stop PEREN hot in the default set turned all the way 35 0 350 ge d Note In this case you must own i set the pump to the maximum stage Mid position 5 turns gt to the left 25 0 250 Factory setting SE tothe If noises in the radiators or left from the mid posi 17 0 170 tion radiator valves are produced 11 4 Setting value for the bypass valve feed head 11 2 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 fitted or open air flue gas duct or if the boiler is operated with inter nal leaks with the front casing open g
20. 2 15 3 16 16 1 16 2 Checking the pressure of the expansion vessel ontheboilEr se Eiis 68 Check the pressure of the expansion vessel on the layered storage tank ees sesse ese se ee Re 68 Checking the gas flOW pressure esse sesse se see ee 68 Checking the CO conteNE ese sesse ese se ee ee Re ee 68 Troubleshooting iee esse sesse se ee ee Re Re 69 Contact Vaillant Service Solutions 0870 6060 TT T use en Se ee Ee eg Performing diagnostics sees se see ee SR ee ee Calling up Live Monitor status codes Status codes Overview esse sesse see ee ee ee se Service MEessag ES ee ESE SAGE ES SES SEG eN Calling up diagnostics levels ees ses see se ee ee Reading off the fault codes Querying the fault memory Resetting the fault Memory uu cessessesescsseseeceeeeeeees Overview Of fault code sees ee se ee Se Ge ee Ge ee Using the function menu ba RUNNING test programs iese sesse sesse se Re Resetting parameters to factory settings 73 Replacing components iis sesse se ee ee Re 74 Preparing for and completing replacement work 74 Preparing for replacement work Completing replacement WOrK seb Replacing the burner esse sesse sesse ee ee GR ee Re ee Replacing the fan esse sesse se see Se Re Se GR ee GR ee Re ee Replacing the gas valVe ese sesse sesse se Re Se Re Se Re Replacing the Venturi including the mass flow IE EE NE AA 77 Replacing the expansion vessel
21. 3 5 2 Impeller 6 3 5 sensor ri orange a Warm start sensor 4 violet ea Hot water sensor gt A red za Flow sensor blue SET a Return sensor Pd 12 gt X20 13 5 Safety fuse si Coding resistor output range 16 gt 4 3 gt 17 gt X24 3 j i lite 7 D Coding resistor gas group FB m Circulation pump remote control X41 AF mm External sensor RF mm External temperature sensor Edge DC F m DCF connection connector Om Earth 1 om Earth D blue AE S32 Contact thermostat burner off Pree X100 ha 24 V DC room thermostat 12 45 white DS gt 7 EE f 5 IDe Bus connection AS Eg pink Ps lS Controller room th digital ta 24 V 3 230 V Ls Fan a x X16 NES Auxi iary relay Ni rey OLIES Selection by D 026 L lu XN NET blue DIEET D L Internal pump N X18 Gent P CJ Ignition M S No function electrode Ignition RT 2E 230 V AC room thermostat L l DS E f unit X x1 ysis Mains connection mm turguoise mm Appliance earth variant dependent 8 5 Connection diagram for the electronics box on the ecoTEC plus 937 Installation and maintenance instructions ecoTEC plus 0020134833_01 35 violet AI Storage tank Shift load storage tank electronics black charging sensor NTC orange j black R Storage tank sensor NTC blue Ek Inlet sensor secondary heat exchanger NTC aci Impeller sensor Storage tank ch
22. 5 5 in mm Key Wall breakthrough for air flue gas duct Hanging bracket Heating flow 22 x 1 5 Hot water connection 15 x 1 5 Gas connection 22 x 1 5 Cold water connection 15 x 1 5 Heating return 22 x 1 5 Air flue gas duct connection Condensate discharge connection 19 mm Condensate siphon Heating expansion relief valve discharge pipe connection 15mm SoQoUaNDUKRWN Minimum dimension from wall bracket to cen Dimension A tre line of air flue gas duct wall breakthrough mm 60 100 with elbow 87 PP 175 80 125 with elbow 87 PP 223 4 3 Dimension A for air flue gas duct wall breakthrough 18 Installation and maintenance instructions ecoTEC plus 0020134833_01 jat 1 al T 7 i lt i F n 5 ay Q dar y Y Y A o N 35 35 aa 100 100 gt lt gt N JT 180 198 4 4 Layered storage tank connection dimensions in mm Key Heating return 22 mm Cold water connection 15mm Hot water connection 15mm Heating flow 22 mm Hanging bracket Cover Connection for discharge hose expansion relief valve on the lay ered storage tank NOUR WN Installation and maintenance instructions ecoTEC plus 0020134833_01 19 4 6 Wall mounting the layered storage tank 4 7 Wall mounting t
23. C under diagnostics 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 control default setting to return flow temperature control under diagnostics code D O17 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 to prevent energy loss an electronic restart lock out is activated for a specific period each time the burner is switched off You can adjust the burner anti cycling time to the conditions 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 in the installer level under diagnostics code D OO2 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 that is 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 tab Resetting the remaining burner anti cycling time You have two options to reset the remaining burner anti cycling time The remaining burner anti cycling time fol
24. 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 rotational 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 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 If a 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 risk of being burned or scalded by the compact thermal module or by any of the 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 p
25. 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 around 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 containin
26. 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 F73 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 F74 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 F76 Overheating protection on primary heat Cable or cable connections for safety fuse in primary heat exchanger or exchanger has responded primary heat exchanger defective F77 Flue non return flap condensate 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 no
27. 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 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 m7 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 ppm OR CO CO Ratio The heating and hot water system complies with the appropriate Building Re
28. This boiler is not intended for use by persons including children having limited physical sensory or mental capaci ties or who have inadequate experience and or knowledge unless supervised by a person responsible 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 central 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 improper use Any direct commercial or industrial use is also deemed to be improper The manufacturer or supplier is not liable for any damage resulting from such use The user alone bears the risk Intended use includes the following observing the accompanying operating installation and maintenance instructions for the Vaillant product and any other parts and components of the system installing and fitting the boiler in accordance with the boiler and system approval compliance with all inspection and maintenance condi tions listed in the instructions Caution Any improper use is prohibited 2 3 Basic safety ins
29. Undo the nuts 2 on the expansion vessel 1 gt Detach the expansion vessel from the screwed pipe and remove it from the EPS insulation gt Insert the new expansion vessel into the EPS insulation gt Reconnect the new expansion vessel To do this use a new seal gt Check the filling pressure of the expansion vessel mini mum pressure is 4 bar gt Fill and purge the boiler and the layered storage tank 14 9 Replacing the cylinder charging pump on the layered storage tank gt Close the stop valve on the hot water system and drain the boiler and layered storage tank on the hot water side 80 14 15 Replacing the cylinder charging pump gt VY VY y y Remove the discharge pipe 1 from the expansion relief valve on the boiler Fold the electronics box forwards gt section 8 2 Open the electronics box gt section 8 2 Pull the plug X12 out of the PCB Pull the free end of the line carefully through the grom mets on the boiler and on the layered storage tank Loosen the pump sensor line from the cable harness by pulling the plug out of the cable harness Unscrew the pipe elbow 6 from the casing Undo the screwed connection 2 on the connection pipe 3 Undo the spring clip 5 on the casing of the cylinder charging pump 4 At the same time use your free hand to support the cylinder charging pump to ensure that it does not fall out of th
30. 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 the 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 are open gt Open the drain cock gt Open the purging valves on the radiators Start from the highest radiator and then work from the top to the bottom gt Once the water has drained off close 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 __ __J or the plus button to go to the components of the heating installation gt Confirm your selection using the right hand selection button Select Cancelling the function test gt Press the left hand selection button Can cel 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 Display Test programs Action T 01
31. dle OE e Description of the unit esse se see ee Re ee 12 Installati n ius esse ee ee ee es ed ee Ede Ed se AGCCOSSOMIOS se ae SR AA Ee a ke Controle RR EE EE RE ge Installation and operation Scope Of delivery ees sesse ee Unpack the layered storage tank Unpacking the DOr sesse sesse se ee Re Re ee Checking the scope of deliVer VY sesse sesse see ee Disposing of the packaging st Transporting the appliance re Requirements for the installation site Required minimum clearances installation clearances esse ee ee ee Se Se Ge Ge Ge 17 Using installation templates esse se see Re ee 17 Dimension drawing and connection dimensions 18 Wall mounting the layered storage tank 004 20 Wall mounting the boiler s sessssessssssesessssesessssesesessese 20 Removing fitting the front CASING cscs 21 Removing fitting the side panel sesse sees 21 51 5 2 61 6 2 6 3 6 4 6 5 6 6 6 7 6 8 7A 7 2 8 1 8 2 8 3 8 4 8 5 8 5 1 8 5 2 8 6 8 6 1 8 6 2 8 7 8 8 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 2 10 10 2 11 10 3 10 4 Gas installation sesse ee ee ee Se Ge Ge Ge Ge ee Ge Re Preparing for installation CONNECTING the gas LINE eesseseseseeseseeeseseseeeeeeneeees Hydraulic installation sesse sesse se see ee ee 23 Preparing for installation esse sesse se see se Re
32. 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 VY 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 PO1 as described in gt sec tion 10 4 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 check y VY VY i list Natural gas 620 LPG 631 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
33. kPa mbar kPa mbar 937 1 5 15 2 3 23 2 3 23 4 3 43 10 3 Gas inlet working pressure at the reference test point 48 10 13 Carrying out a full function test gt After completing the installation and the gas ratio set ting perform a complete function check of the boiler before starting up the boiler and handing it over to the operator 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 gt section 10 2 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 2 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 13 1 gt Check the operation of the hot water generation gt sec tion 10 13 2 You can display the current operating condition of the boiler in the Live monitor on the boiler dis
34. number 0020060570 and 0020065937 Optional 125 mm air flue gas duct A concentric air flue gas ducting with an outer diameter of 125 mm is available and it 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 infor mation refer to the gt installation manual for the air flue gas duct 1020 7 3 Scope of delivery for the horizontal air flue gas duct Article number 303209 7 4 Scope of delivery for the vertical air flue gas duct Article number 303200 Installation and maintenance instructions ecoTEC plus 0020134833_01 27 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 times 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
35. of death from electric shock as a result of an improper electrical connec tion 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 installation 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 ETC regulations Electro Technical Council for Ireland gt Earth the boiler 30 8 1 Opening the back wall of the electronics box gt gt gt Fold the electronics box 1 forwards 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 Fold up the cover Closing the electronics box gt gt gt gt Close the rear panel on the electronics box Push in the panel until it clicks into place in the clips Fold up the electronics box Push the right and left clips of the box against the side panels on the boiler until they click into place Attach the front casing of the boiler gt section 4 8 Installation and maintenance instructions ecoTEC plus 0020134833 OI1 8 3 Connecting the layered storage tank to the power supply Caution Risk of cable damage Cables may beco
36. 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 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 flue gas and air measurements on this boiler for details see section gt section 10 12 2 Proceed to put the boiler into operation as follows gt Check the maximum gas flow rate as detailed in gt sec tion 10 12 3 gt Check the gas inlet working pressure as detailed in gt section 10 12 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 46 10 12 2 Checking for tightness of the flue gas installation and flue gas recirculation gt Check t
37. 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 Flow 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 too low wrong air ratio condensate route blocked wrong gas restrictor ionisation flow interruption cables elec trodes flue gas recirculation condensate route F7O
38. pump ble D O16 Room thermostat 24 V DC open Heating mode Off On Not adjusta closed ble D O17 Heating flow return regulation Control type flow return Flow changeover D O18 Pump operating mode setting Comfort continuously operating pump Eco Eco intermittently 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 65 C 65 C D 022 Hot water requirement via C1 C2 On Off Not adjusta impeller or APC ble D 023 Summer winter operating mode heat Heating on heating off summer mode Not adjusta ing on off ble D O25 Hot water generation enabled by On Off Not adjusta eBUS controller ble 11 1 Diagnostics codes Installation and maintenance instructions ecoTEC plus 0020134833_01 51 Code D 026 D 027 Parameters Auxiliary relay control Switching of relay 1 on the 2 in 7 multi functional module VR 40 Adjustable values Circulation pump External pump Your own setting Factory set ting External pump Cylinder charging pump Extractor hood External solenoid valve External
39. result of the gas family check gt Make sure that the fault is completely eliminated 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 No CO CO or CO measurement is possible dur ing the gas family check Installation and maintenance instructions ecoTEC plus 0020134833 OI match the ily entered gas family successful Combustion None quality is good Appliance con figuration matches the specified gas family Warning Combustion gt Start test program P O1 and quality insuffi adjust the CO value with the cient CO2 value adjusting screw in the Venturi and CO CO2 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 the gas family check F 93 Gas Combustion gt Damaged or incorrect gas group fault quality outside restrictor yellow H gas grey the permitted range 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
40. sees 56 Setting the PUMP OUTPUT se sesse se ee SR ee RE 56 Setting the bypass valve iese sesse sesse ee SR ee Re 56 Handing over the boiler to the operator 57 Inspection and maintenance 58 Inspection and maintenance intervals sseecee 58 General inspection and maintenance INStrUCTIONS sees Safety instructions Checking the CO CO ratio and the CO CONCEMEFALION sess se seke EE ee se 59 Adjusting the CO concentration or the air TACO ER ee ee EG EE eg Performing the gas family check Inspection and maintenance work steps Filling the boiler and the heating installation 63 Draining the boiler ssesessessssssessssesessssssesessesesessesesesses 63 Draining the entire heating installation 63 Using the FUNCTION MENU esse sesse se see Re Re ee 63 Carrying out electronics Self teSts uses see sesse 63 Carrying out maintenance WOFK esse sesse se see se ee Removing the compact thermal module Cleaning the heat exchange sesse sesse see Re Checking the burner ese sesse se see ee Re GR ee Re Cleaning the condensate SiDPhON esse Cleaning the filter in the cold water inlet Installing the compact thermal module 12 4 7 12 4 8 12 5 12 51 13 13 1 13 2 13 21 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 9 14 10 14 11 14 111 14 1 2 14 1 3 15 15 1 15
41. the building 7 5 Termination of the air flue gas duct 28 Installation and maintenance instructions ecoTEC plus 0020134833_01 Location Ds De l dimensions balcony eaves 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 flue adeguately flue extended to supported clear any overhang From an internal or external corner Above ground roof or balcony level 7 6 Termination of air flue gas duct under balcony or eaves From a surface facing the terminal From a terminal facing the terminal From an opening in the car port e g door win dow 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 termi
42. top and bottom of the side panel gt Hold onto the side panel 3 when doing this gt Swivel the side panel outwards and remove it from below by pulling it downwards 4 gt Install the side panel in reverse order 21 5 Gas installation The work described in this section must only be carried out by a competent person 5 1 Preparing for installation Danger Risk of death caused by improper gas installation An incorrect gas installation may 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 caused by improper gas installation Tension in the gas line may 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 may 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 gt Caution Risk of damage caused by contaminated lines Foreign bodies such as welding remnants sealing residue or dirt in the supply lines for gas can cause damage to the boiler gt Blow the gas line thoroughly clean prior to installation Caution Risk of damage caused by using the wrong gas group
43. value using test program P O1 adjusting screw in the Venturi gt sec tion 12 1 4 gt Repeat the gas family check 12 2 Results and measures after gas family check 61 12 2 Inspection and maintenance work steps Column 1 Column 2 Inspection Maintenance Activity must be car must be car ried out each ried out at reg year ular intervals Check the air flue gas installation for leaks and for proper fixation and ensure it is not blocked x or damaged and is fitted correctly complying with the relevant installation instructions Carry out a general inspection of the boiler for dirt and dust and clean as necessary X Visually inspect the complete heat engine for its general condition and for signs of corrosion sooting or other forms of damage paying particular attention to the burner door seal If dam X age is evident proceed to column 2 Measure the gas flow rate during operation with maximum load 2 section 10 12 3 If the gas y flow rate complies to the gt tab 10 2 continue with column 1 if not proceed to column 2 Check the gas inlet working pressure gt section 10 12 4 operation with maximum load If the gas inlet working pressure complies to the gt tab 10 3 continue with column 1 if not proceed X to column 2 Check combustion by measuring CO CO and CO CO If the values are outside the tolerances of gt tab 12 proceed to maintenance column 2 You must not proceed with the maintenance if a new
44. way to the discharge line for the boiler Installation and maintenance instructions ecoTEC plus 0020134833_01 7 Flue gas installation 7 1 Air flue gas duct Danger Risk of death and risk of damage caused by using 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 may 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 suit able system depends on the individual installation and application conditions Standard 100 mm air flue gas duct 7 1 Scope of delivery for the 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 Y foe 0 4 D ii 7 2 Scope of delivery for the vertical air flue gas duct Article
45. 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 tab 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 60 12 2 Removing the covering cap for the air ratio setting adjust ing screw gas ratio setting and making the air ratio set ting 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 flate blade screwdriver through the covering cap at the mark and unscrew it Set the relevant CO value value with removed front casing gt tab 12 1 by turning the screw 2 To do this use a flat blade 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 a
46. 5 minutes until the boiler has reached its operating temperature gt Ensure that all other gas appliances in the property are turned off gt Measure the gas flow rate at the gas meter gt Check that the gas flow rate is as stated in gt tab 10 2 If the measured gas flow rate lies outside the tolerance lim its specified in gt tab 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 tab 10 2 then proceed as follows gt Take the boiler out of operation by terminating test program PO1 as described in gt sec tion 10 4 Allow the boiler to cool down by turning off water taps and allow pump overrun to operate for a minimum of two minutes gt Record the boiler maximum gas flow rate onto the Benchmark gas boiler commissioning checklist Gas flow rate as per BS EN 437 3 05 37 415 4 36 3 74 3 20 2 75 dealin net Natural gas in m h Propane in kg h ea output in kW NOMI Soy 10 MOM 5 10 nal nal 10 2 Gas flow rates Installation and maintenance instructions ecoTEC plus 0020134833_01 10 12 4 Checking the gas inlet working pressure y y y Ensure that the gas inlet working pressure can be obtained with all other gas appliances in the property working Remove the front casing from the boiler gt section 4 8 Close the gas isolation valve o
47. 69 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 sec tion 13 2 5 If no fault message is present the boiler will automatically switch back to normal operation after a certain time Com fort safety mod
48. AE ks EG ee eed 44 Filling device Filling pressure Fitting BOI Gh EE 20 CONtrONERS EE se i SG Ge Ges 33 Front CASING se EN ed sek Se AR oe ige eg ge 21 Layered storage tank uu sesse sesse se ee ee Se Re Se Re Se Re 20 Side panel sesse Flue gas system Frost protection Function MENU ER Se RS Ad ged Ede ee Ee ge se ed Ad ged G Gas Council Number iese ede ede ed Ge SA Rd EA EA GR Ke ke 5 Gas family check we 61 Gas TOW PLOSSULE iese esse EEU Ve RES SEG RGN Gegee Gee Ese ESE gee ed 47 Gas TOW Tale ss EE ARE censerent ereiteari ainaoikeaa AT Gas ratio setting sees ESE Gee Ek ee EE Gee ek gee gee ese oge 45 Installation and maintenance instructions ecoTEC plus 0020134833 OI1 H Heating mode reekse ESE SESSE SEE GR Ek ge gee DEK Ee Kg SE Gee eke Gee ge 49 Heating partial load sesde ed SN ok ed Oe ek oo ge oe Ged 41 Heating water Preparation Hi esse Se Ge de Ge ore ie 10 Installation assistaNE esse ses ese ee ee Re ee Re Re Re Re ee Re Re ee 40 Installation clearance Installation site 5 Installation template esse sesse se ee SR ee SR ee Se Re Se Re ee Installerlevelsb ai kA eA a ei L Languages ego klone bees ed ee ee Re ee ed bedek ed 40 Lowloss headelr res Ee eend Seeds ed ed ed N ee onge ieke ed 24 M Mains CONNECTION Manufacturer s guarantee ses Minimum clearanCe uie sesse se see Se ee Re SR ee Se Re Seri ea ien Multi functional module sesse sesse se ee Re Re Se Re 0 Overview Inspec
49. B Installation and maintenance instructions For the competent person Installation and maintenance instructions ecoTEC plus VUI 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 2 4 4 3 4 4 4 41 4 4 2 4 5 4 6 47 4 8 49 Notes on the documentation sesse Storing document se sesse se ee ee Se Re SR Re Se Re SymbDols used sarsies ESE EER GER ER EE SES see EE ees de Applicability of the instructions vase nr Identification plate iese sesse sesse se ee Se Re Re Se Re ee CE label ti et ee ee ed ge ee de eed e Structure of warnings Intended use sesse sesse ee Basic safety instructions Important information regarding propane fired boilerS ie esse sesse se ee Se Re Se Re Se Re ee 8 General reguirements Related documents A A i Installation site esse sesse ese ee ee ee ee ee ee Se Se Ge Ge Ge Ge ee 9 Gas SUDDIV esse ERG gek EER Bede ek GEN SEE Gee ek eg eg 10 Air supply site ii Compartment ventilatiON e sesse sesse se see Se Re ee 10 Electrical supplY sasie EE SS koe ese geseg ee ge 10 Water supply Combination boilerS esse sesse sesse 10 Water Circulation SYSTEM esse sesse sesse se Re Se Re ee 10 Pressure relief valve wa ye seus
50. D HOT WATER SYSTEMS 88 Installation and maintenance instructions ecoTEC plus 0020134833_01 EE LOG BOOK ease affix the label from the 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 Telephone Number Address Commissioned by print name CC 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
51. 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 P O6 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 dD Purging the heating circuit Diverter valve in heating position actuation of internal pump for 9 cycles 30 sec on 20 sec off Display Active heating cir cuit Purging the hot water circuit After the above mentioned cycles have run or the right hand selection button has been pressed again Diverter valve in the hot water position actuation of the internal pump as above Dis play 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 hand selection button Cancel at any time POO Exhaust Heating circuit 1 0 bar o 10 1 Boiler in error condition 42 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 fig 10 1 You must first clear the faults 10 5 Preparing the heating water O
52. OS EE EE OE EE EE Maintenance interval ou sesse se see ee se ee Se Se Se Se Se Ge Ge Ge Ge Ge ee Maximum flow temperature sesse sesse se ee Se Re ee ee 55 Pump operating mode w D4 Pump output 56 PUMP OVerFUN sesse sesse ese se see ge ee 54 Return flow temperature control sesse se ee 55 Unit BERE sk ee Ee ced de eed ek ek ee eet 82 Spar Bars eo ede ee de on de ge se ek de a 74 Status GOdeS Ee EES RE EE EE GE Re Ee 69 T Test PFOGFAMS cscssesscssesssessessscssssssesesssseecssssesessseeseseseeeeees 41 73 TYDE OVET VIEW ie a ee Ge ee Ee A 6 W Water ee EI SR EE OE EE EE 44 69 Water pressure Sensor e esse se sesse se ee Re Re RE 44 70 71 93 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 0020134833 ae Subject to change 0020134833_01GBIE 072012
53. Re 23 Connecting the hot and cold water uuu 24 Connecting pipe connections between the layered storage tank and the boiler sesse se see 24 Connecting the heating flow and heating return 24 LOW loss header sesscccssssscnsssctsencsesesetesssarceassdtacsessdesteasasene 24 Connecting the condensate discharge pipework 25 Connecting the discharge pipe to the expansion relief valve on the DOMED sesse se seen ee ene Re 26 Connecting the discharge hose to the expansion relief valve on the layered storage tank eee 26 Flue gas installation ou sesse ee Se Re Re 27 Air flue GAS ductis 27 Flue termina tiM senisesse 28 Electrical installation sesse se se se se se se ee GR Ge Re 30 Preparing for installation esse sesse se see Se Re RR 30 Opening closing the electronics BOX sesse sesse 30 Connecting the layered storage tank to the DOWER SUPPLY ee ei ed ed ee ee EG ee ee Establishing the mains connection ss Connecting the controller sessseesessssesesssresessesesessssese Fitting the controller iese sesse sesse se Re Se Re Re Connecting controllers to the electronic system 33 Connecting additional components sesse sees 34 Connecting an auxiliary relay grey plug on the PCB RE OE EE N OE EE 34 Connecting a VR 40 2 from 7 multi functional gates ld RR RE aiai iia 34 Actuating the circulation pump demand controlled ie sesse sesse esse ee ee Se Se se ee se 34 Connection diagraMS iese sesse se see se ee SR R
54. 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 for propane fired boilers in accordance with DIN 51622 22 5 2 Connecting the gas line 5 1 Fitting the gas connection gt Connect the gas as shown gt Use the extended gas pipe 2 that is supplied Installation and maintenance instructions ecoTEC plus 0020134833_01 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 may cause severe burns gt Install the expansion relief valve and its discharge pipe opening ensuring that there is no danger to persons in or about the building This may be outside 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 pipes may 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 w
55. ack appliance from carton Always keep working area clear 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 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 Positioning of Appliance for Final Installation no obstructions gt gt If appliance weight is over 25 kg always use 2 persons to move where practical Fit bracket securely onto wall before lifting appliance into position Obtain firm grip on front and sides of appliance lift upwards ensure stable balance achieved and lift upwards to position in place on bracket Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level Do not twist reposition feet instead Keep boiler as close as possible to body throughout lift to minimise strain on back Ensure co ordinated movements to ensure equal spread of weight of load Always use assistance if required 15 gt Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance
56. al module 2 gt fig 12 4 from the heat exchanger 1 gt fig 12 4 gt Once removed check the burner and the heat exchanger for damage and dirt gt If necessary clean the components according to the fol lowing sections gt Check the burner door insulation on the module If signs of damage other than small cracks are apparent you must replace it article number 193 595 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 12 4 2 Cleaning the heat exchanger 12 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 section 12 4 1 Caution Risk of damage to the heat exchanger gt You must neither loosen nor tighten the four screws 1 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 s
57. alled 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 10 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 supply 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 3 mm contact opening 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 c
58. arameters 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 diagnostics menu gt section 11 Menu gt Installer level gt Diagnostics 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 special functions on the boiler The following four test programs are available 41 Display Meaning POO 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 hand selection button Start heating circuit purging 2 x right hand selection button Ou gt Start purg ing hot water cir cuit 3 x right hand selection button R gt ii Restart heating cir cuit purg ing 1x left hand selection button Cancel Exit purging program The internal pump is cyclically actuated Note The purge program runs 7 5 min per circuit P
59. arging pump green black red Plug connection brown brown black black pr AAAI AAA PARARI EEN IT HT Ta aN TTE GE Poff ll 24 Bus oe mete zz black X41 X100 X1 red m X grey gt x lt X25 X2 24V 230 V 8 6 Connection diagram for the layered storage tank 36 Installation and maintenance instructions ecoTEC plus 0020134833_01 9 Operation The Vaillant ecoTEC plus boiler is fitted with a digital infor mation and analysis system DIA If additional settings are reguired which have not yet been configured using the installation 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 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 s
60. artial load you can set a value under diagnostics code D OOO which equates to the boiler out put 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 diagnostics code D OO1 within the range of 1 minute to 60 minutes You can set a different pump oper ating mode under diagnostics code D 018 Here you have the choice between Eco and Comfort 54 Comfort continuously operating pump The internal pump is switched on when the heating flow 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 0020134833_01 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
61. at AT 35 K Water volume at AT 30 K Permitted overpressure MPa bar 1 0 10 Required connection pressure Hot water output temperature range General Boiler side gas connection mm 22 Flow return heating connections boiler side mm 22 Connecting the hot and cold water boiler side Inches G 3 4 Connector expansion relief valve minimum Condensate discharge pipework minimum Flue gas spigot 60 100 concentric optional 80 125 concentric Gas connection pressure gas flow pressure natural gas G20 kPa mbar 0 20 20 Gas connection pressure gas flow pressure propane kPa mbar 0 37 37 G31 Gas flow rate at 15 C and 1013 mbar based on hot water generation if applicable G20 m h 41 G31 kg h 3 05 Flue gas mass rate min max g s 3 0 17 6 Flue gas temperature min max oC 40 70 SEDBUK 2005 Approved flue gas connections C13 C33 C43 C53 C83 C93 B53P NOx class 5 NOx 27 4 SEDBUK 2009 G20 Boiler dimensions H x W x D Mounting weight approx A 89 4 mm 720 x 440 x 601 Electrical connection Built in fuse kg 41 V Hz 230 50 2 A slow blow 17 1 Technical data for ecoTEC plus VUI boiler Installation and maintenance instructions ecoTEC plus 0020134833_01 ecoTEC plus Unit 937 VUI GB 376 5 5 Electrical power consumption min max W 100 130 Electrical power consumption at 30 partial load W 50 Standby electrica
62. ater and corrosion of the heat generation 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 and or damage due to incorrect installation leading to leaking water Stresses in the supply line may cause leaks gt Make sure there are no stresses in the supply lines when they are installed Installation and maintenance instructions ecoTEC plus 0020134833_01 Caution Risk of damage caused by heat transfer when soldering Heat that is transferred during soldering may 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 layered storage tank is fitted with a 1 litre expansion vessel 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 vessel is sufficient gt If the volume of the expansion vessel is insuf
63. ation 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 also display the exact filling pressure gt section 10 6 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 8 ere ys tle Q S gt Release the cap of the automatic air vent 1 by up to two rotations gt Open all thermostatic radiator valves gt Select test program P 06 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 mid position the pumps do not run and the boiler does not switch to heating mode Installation and maintenance instructions ecoTEC plus 0020134833_01 10 7 1 gt In order to fill the heating installation first open the cold water valve gt Open 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
64. ature sensors incor Flow and or return temperature sensors rectly fitted have been fitted to the same pipe wrong pipe F 90 Communication with actoSTOR module interrupted Check cable harness from boiler to actoSTOR module PEBus If the boiler is to be operated without an actoSTOR module set D 092 O LED acto Status of actoSTOR electronics LED on Communication OK STOR LED flashing Communication not OK module LED off No power supply F 91 Sensor actuator fault on actoSTOR module F 92 Coding resistor fault The coding resistor on the PCB does not match the entered gas family Check the coding resistor repeat the gas family check and enter the cor rect gas family F 93 Gas group fault 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 the O ring in Venturi Gas family check prematurely terminated Commu No communication with the PCB Communication fault between display and PCB in the electronics box nication fault 13 2 Fault codes continued 13 3 Using the function menu 13 5 Resetting parameters to factory settings In order to remedy boiler problems you can use the func As well as the option to manually reset individual parame tion menu which allows you to actuate and test individual ters to the factory settings specified in gt tab 11 1 you can components of the heating installati
65. bserve the specifications concerning heating water prepa ration in gt section 2 5 8 10 6 Reading off the filling pressure The boiler is equipped with an analogue pressure gauge fig 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 hand 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 pipes may cause damage to the boiler gt Flush the heating installation thoroughly prior to commissioning The system is filled via an filling connection that is installed on site and that 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 system 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 loop under the boiler fig 10 3 To ensure the correct oper
66. 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 X 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 Check the charge pressure in the expansion vessel of the layered storage tank Correct the pressure if necessary Remove the compact thermal module a X Check the integrity of all combustion circuit seals especially the burner door seal Ensure any x damage found is repaired before proceeding Clean the heat exchanger gt section 12 4 2 O X Check whether the burner is dirty and clean it if necessary i X 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 Replace the hot water heat exchanger if the volume of water is insufficient or the outlet tem 17 X perature is not reached 18 Remove the impeller sensor clean the filter in the cold water inlet of the sensor and refit the sensor Open the gas isolation valve reconnect the boiler with the power mains an
67. cated at the lowest position of the heating system Shut off the boiler open the drain valve and all bleed valves on the radiators and allow the water to flow out of the heating system and the boiler quickly and fully Close the drain valve Fill the heating system again with water as described in gt section 10 7 3 Re fill the system until the system design pressure of 0 1 MPa 1 0 bar is attained The actual reading on the digital pressure gauge should ideally be 0 05 MPa 0 5 bar plus an additional pressure corresponding to the highest point of the system above the base of the boiler 10 m head equals an additional 1 bar reading on the pressure gauge The minimum pressure should not be less than 0 1 MPa 1 bar in any installation If the sys tem is to be treated with an inhibitor it should be applied at this stage in accordance with the manufacturer s instructions Further information can be obtained from Sentinel Betz Dearborn Ltd Tel 0151 420 9595 or Fer nox Alpha Fry technologies Tel 0870 8700362 gt Refit the boiler casing gt section 4 8 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
68. cept no liability for any damage caused by failure to observe these instructions Other applicable documents gt When installing the ecoTEC plus follow all installation instructions for the various parts and components of the system without exception These installation instructions are enclosed with the various system parts and supplementary components gt Furthermore observe all operating instructions enclosed with components of the system 1 1 Storing documents gt Pass these installation instructions and all other applica ble documents and if necessary any required tools to the system operator The system operator should retain these instructions and tools so that they are available when required 1 2 Symbols used The symbols used in the text are explained below gt Symbol for a required action Symbol that denotes useful tips and infor mation 1 3 Applicability of the instructions These installation instructions are only valid for boilers with the following article numbers Article Gas Boiler Type designation Council number Number ecoTEC plus 937 VUI GB 376 5 5 0010011689 47 044 43 1 1 Unit types article numbers and Gas Council Number The article number of the boiler can be found on the identi fication plate Installation and maintenance instructions ecoTEC plus 0020134833_01 1 4 Identification plate The identification plate of the Vaillant ecoTEC plus is atta
69. ched 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 sixteenth 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 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 Consumption 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 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 CE label The CE label shows that the boilers comply with the basic requirements of the applicable directives as stated on the identification plate The boilers comply with the type sample described in the EC Type testing certificate 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
70. cold water stop valve Drain the layered storage tank 3 Unscrew the nut 1 gt fig 12 8 from the cold water pipe Undo the screwed connection 2 on the connector 5 Unscrew the cap nut 4 Remove the connectors including the connection pipe 5 from the casing Rinse the connector out under flowing water in the opposite direction to the normal flow Refit the connector with the cleaned filter Refit the connection pipe from the layered storage tank and the cold water pipe Always use new seals Installation and maintenance instructions ecoTEC plus 0020134833_01 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 gt Attach the compact thermal module 2 gt fig 12 9 to the heat exchanger 1 gt fig 12 9 Tighten the four nuts 9 gt fig 12 9 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
71. ction 11 Installation and maintenance instructions ecoTEC plus 0020134833_01 14 11 3 Replacing the PCB on the layered storage tank gt Comply with the assembly and installation manuals pro vided with the spare parts gt Unscrew the bolt from the cover of the layered storage tank and remove the cover 15 1 15 Decommissioning 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 shut down the boiler fully if the heating installation is otherwise pro tected from frost gt Drain the heating installation fully 14 19 Replacing the PCB on the layered storage tank gt Remove the electronics box with the layered storage tank PCB 1 from the appliance slot gt Open the electronics box and remove the plug gt Install the new PCB in reverse order gt Start up the unit BVaillant 15 1 Switching off the boiler VY VY VY Close the gas isolator cock Close the cold water stop valve Drain the heating installation fully section 12 2 2 Press the on off switch 1 The display 2 goes off 15 2 Taking the boiler permanently out of VY VY VV service Close the gas isolator cock Close the cold water stop valve Drain the heating installation fully
72. d fitting of the siphon trap We recommend that you do not shorten the dis charge pipe supplied 6 5 Fit the discharge pipe on the expansion relief valve gt Leave an installation space of at least 180 mm beneath the condensate siphon gt Insert a seal 1 in the cap nut 2 gt Screw the discharge pipe 3 onto the expansion relief valve gt Make the drain line routing as short as possible and ina downward gradient away from the boiler gt 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 gt Note that the end of the line must be visible gt 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 gt Ensure the discharge pipe work is installed routed and terminated correctly to minimise the risk of freezing up 26 6 8 Connecting the discharge hose to the expansion relief valve on the layered storage tank 6 6 Fitting the discharge hose to the expansion relief valve on the layered storage tank The expansion relief valve for the hot water system is inte grated into the layered storage tank gt Insert the discharge hose 1 into the expansion relief valve 2 The end of the discharge hose can be guided via an open connection to a tundish and can be connected in a similar
73. d no delay 1 5 I min and 53 Code Parameters D O9O Status of digital controller Adjustable values recognised not recognised Your own setting Not adjustable Factory set ting D O91 Status DCF with external sensor con nected No reception Reception Synchronised Valid Not adjustable D O92 actoSTOR module recognition Not connected Connection error No communication via PeBus acto STOR module detected previously Connection active D 093 Setting of device specific number DSN Delete fault history Delete fault list EG Setting range O D 094 D O95 PCB BMU Display AD actoSTOR APC HBI VR34 Software version of PeBUS components to 99 Not adjustable D O96 Factory setting D O98 Value of coding resistors for gas group Display xx yy and output range range 11 VUI 937 02 P Gas 03 H Gas Reset all adjustable parameters to default setting Not adjustable xx Coding resistor 1 in cable harness for output yy Coding resistor 2 on PCB for gas group 11 1 Diagnostics 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 automati cally 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 p
74. d switch on the x boiler Open the service valves and fill up the boiler appliance to approximately 0 1 0 2 MPa 1 0 j 2 0 bar depending on the static height of the system Start the bleeding program P OO Perform a test operation of the boiler and heating installation including hot water generation x and bleed again if necessary Perform the gas family check gt section 12 1 5 Check visually the ignition and burner performance Check the boiler for leaks of any kind gas flue gas water condensate and rectify as neces i sary If you had problems with the CO CO2 CO CO values in Step 6 before the maintenance check them again now gt tab 12 1 If they are outside of the tolerances of gt tab 12 1 make an X adjustment see gt section 12 1 4 Complete the Benchmark gas boiler commission service record on the back pages of this x manual 12 3 Inspection and maintenance steps 62 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 the 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
75. e SR ee Se ee 35 Operation iseer gs es SEERDE ONE lk ee EER Ee ede eek Ee 37 Calling up the installer level iese sesse sesse se ee se ee 37 Overview of the menu structure sesse se se see 38 Commissioning Switching on the boiler sabe sa Installation assistant see sesse se se se Se Se Se Se Ge Ge Ge GR Ge Re VandUages AEAEE A NAE Filling mode n Purging see Target feed temperature wai ee Hot water temperature sesse se se see Re ee ee eg Comftort mOde sessies ee see se se ee se oe oe oe en geed Heating partial load se Auxiliary relay and multi functional module 41 Competent person telephone number ses 41 Terminating the installation assistant el Restarting the installation assistant sesse sesse sees 41 Appliance configuration and diagnostics menu 41 Using test DrOgraMS iese sesse sesse se ee Re GR ee ee ee 41 Installation and maintenance instructions ecoTEC plus 0020134833_01 10 5 10 6 10 7 10 71 10 7 2 10 7 3 10 8 10 9 10 10 10 11 10 12 10121 10 12 2 10 12 3 10 12 4 10 13 10 13 1 1013 2 10 13 3 10 14 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 1211 121 1 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 4 1 12 4 2 12 4 3 12 4 4 12 4 5 12 4 6 Installation and maintenance instructions ecoTEC plus 0020134833_01 Preparing the heating water
76. e casing Pull the cylinder charging pump downwards out of the casing Fit the pipe elbow to the new cylinder charging pump and use new seals for it Install the new cylinder charging pump in reverse order and use new seals for it Connect the pump s electrical lines in reverse order In doing so pay attention to the correct pipe routing Refit the discharge pipe 1 and use new seals Fill and purge the boiler and the layered storage tank Installation and maintenance instructions ecoTEC plus 0020134833_01 14 10 Replacing the impeller sensor on the 14 11 layered storage tank Replacing the PCB and or the display gt Close the stop valve on the hot water system and drain the boiler and layered storage tank on the hot water side 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
77. e connected components select the com ponents using diagnostics code D 026 in the installer level gt section 11 1 Connecting an auxiliary relay grey plug on the PCB You can connect the additional component to the integrated auxiliary relay using the grey plug on the PCB 8 6 2 Connecting a 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 relevant oper ating and installation instructions gt In the installer level select diagnostics code D 027 to actuate relay 1 on the multi functional module gt sec tion 11 1 34 gt In the installer level select diagnostics code D 028 to actuate relay 2 on the multi functional module gt sec tion 11 1 8 7 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 may cause short circuits and dam age the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables to a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs gt gt Perform the wiring in the same way as in gt
78. e 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 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 t
79. e may then have been triggered by a severe storm for example 13 2 4 Calling up diagnostics levels Menu gt Installer level gt Diagnostics menu You can use the diagnostics menu to inspect parameters and modify certain parameters An overview of the diagnos tics codes can be found in gt tab 11 1 70 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 NTC short circuit 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 fault clearance key 7Operating instructions gt If you are unable to remedy the fault and the fault reoc curs despite having carried out several fault clearance attempts contact 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 You can use this to query the last ten faults that occurred in chronological order The display shows the number of faults that have occurred the fault currently selected with fault number F xx a plain text display explaining the fault
80. ecessary refill and re bleed 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 CO2 ratio does not exceed the value shown in gt tab 12 1 Checking adjustment of the CO 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 59 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 2 section 4 8 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 tab 12 1 gt If all these points are as required proceed as described in section 12 2 gt If one of the flue gas values is greater than the accepta ble values in gt tab
81. esse esse se see RR Reading off the filling DreSSUF iese sesse se sesse se see Filling and purging the heating installation Filling the heating installation esse sesse se see ee Purging the heating installation esses Flushing the system for the first time cold 44 Avoiding low water DreSSUF use sesse sesse se ee Re 44 Topping up the VUI boiler using a filling device 44 Fill and purge the hot water system sesse sesse 44 Filling the condensate SIPNON cssesseceeerseseeeeeees 45 Checking the gas ratio Setting sesse sesse ee 45 Factory settings eed SR Ee ke Geen GE ees 45 Checking for tightness of the flue gas installation and flue gas recirculation eee 46 Checking the gas flow rate oe sesse seeks se se ee ee 47 Checking the gas inlet working pressure 47 Carrying out a full function test Checking the heating Mode uuu sesse sesse see Re Checking the hot water generation sceceeeees Checking the cylinder charging e0e Final flush of the heating system hot Adapting the boiler to the heating installation 50 Diagnostics codes OVerVi W e sesse sesse se se see se ee 50 Setting the heating partial load sesse sesse se eg 54 Setting pump overrun time and pump operating mode sesse se see ee Re Re GR ee ee 54 Setting the maximum flow temperature 55 Setting the return flow temperature control 55 Burner anti cycling time Setting the maintenance interval sesse
82. esse sesse Re 78 Replacing the heat exchange sesse sesse Re 78 Replacing the expansion vessel of the layered storage tank siese sees ese seg de eN ee Dei 80 Replacing the cylinder charging pump on the layered storage tank uses sesse ses see Re Re Re ee 80 Replacing the impeller sensor on the layered Storage tankK see See Ee Se Se ee AE ed oe ge de 81 Replacing the PCB and or the display 81 Replacing either the display or the PCB on the DOOR RA AE EE ances 82 Replacing the PCB and the display on the boiler at the same tiMe sees sesse ee ee se ee se 82 Decommissioning ccccsccsesesessssssssesssecseseseeseeees Temporarily shutting down the boiler Taking the boiler permanently out of service 83 Disposing of the boiler ou sesse sesse se ee Re ee ee 84 Guarantee and customer service sesse 84 Factory guarantees 84 Vaillant S rvlCe RE Ra ee Ge seer de oe Gee Ges 84 17 Technical datas EE EE es es Ee EE ee 85 18 Glossar Visse ESEG ESEG REG GARS ge Ge ESE Age Ne 87 19 AppendiX Ge ee 88 20 Benchmark Log BOOK sees see se ee ee ee ge 89 21 EC declaration of conformity ccsceseeees 91 LT ER EE OE 92 Installation and maintenance instructions ecoTEC plus 0020134833 01 1 Notes on the documentation The following information is intended to help you through out the entire documentation Further documents apply in combination with these installation and maintenance instructions We ac
83. f the boiler K 7 Undo the sealing screw of the measuring nipple 1 lower screw at the gas valve using a screwdriver Connect a digital pressure gauge or U tube manometer 2 to the measuring nipple 1 Open the gas isolation valve of the boiler Start the boiler by activating the test program P 01 as described in gt section 13 4 In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo Stat Alternatively fully open the hot water taps to ensure full flow rate through the boiler 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 tab 10 3 Should the pressure recorded at the reference test point in the boiler be lower than indicated tab 10 3 check if there is any blockage in the pipework or if the pipe work is undersized 47 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 Vaillant Service Solutions 0870 6060 777 and proceed as follows gt Take the boiler out of operation by terminating test program P O1 as described in gt sec tion 10 4 Allow the boiler to cool down by turning off water taps and allow pump overrun to operate
84. f valve on boiler 26 Discharge pipe for expansion relief valve on layered storade tarik veissccsecsasscsesconsesesseacesasens cosesondsevtsconsesvesvacesbsesbcoeeses 26 Flow ANG TetUFN esse ies de ees Ede Ge Be oe Se EA Rd ek Sk sd sees ee ek 24 GasdliNe Ee EE a 22 Layered storage tank electric 24 Layered storage tank hydraulic 24 Multi functional module esse see ee se ee Se Se Se Ge Ge Ge Ge Ge ee 34 Connection diagraM eeesse sesse sesse se Re Se Re Se Re Se Re ee ee ee 35 Connection dimenSiONS sesse see ee ee Se ee Ge Ge Ge Ge Ge Ge ee 18 Eustomer SErVICes Ee Ee es ee see Gee EED ee 84 Eylinder GhargiNd siste bee ee ee Ge E 49 92 D Diagnostics Code sesse se ee Se Re Se Re ee ge 50 51 52 53 BES id OE OO EE EE ed 87 Disposal ell Aa DE EE EE IN 84 PackadiN ds ese si EE Es See ene Koo see Sosvisensosasten oes dee eene 14 Domestic hot water cylinder uisse sesse sesse se Re Se Re Se Re 53 Draining el EE OE EE IE 63 Heating installation sesse se sesse se ee ee Se Re Se Re Se Re 63 E el EE EE 87 Expansion vessel tell AE EE OE EE EE EO Layered storage tank F FANS ER SE RE ee ge E ee de Fault codes Fault memory Filling Boiler with filling device iese esse sesse se ee Se Re SR ee Re 44 Condensate SIPMOM sisi scdessstesslscscsascsseesscsaeeescseassstsesstessecssssates 45 Heating installation sesse se sesse ee Se Re Se Re Se Re 42 43 Hot water SYSTEM sesse ses dese eds seed
85. fault message Solar pump not active eBUS remote control not active Legionella protection pump not active Solar valve not active Circulation pump External 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 028 Switching of relay 2 on the 2 in 7 multi functional module VR 40 Circulation pump External 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 033 D 034 Fan speed target value Fan speed actual value In rpm In rpm Not adjustable Not adjustable D 035 D 036 Position of the diverter valve Hot water flow quantity fan sensor Heating mode Parallel operation DHW mode In I min Not adjustable Not adjustable D 039 Solar feed temperature Actual value in C Not adjustable D 040 D 041 Flow temperature Return temperature Actual value in C Actual value in C Not adjustable Not adjustable D 044 D 046 Digitised ionisation value Pump type Display range O to 1020 gt 800 no flame Not adjustable lt 400 good flame Relay with disable facility PWM with disable fac
86. fficiency Checklist completed SERVICE 6 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 7 Date Energy Efficiency Checklist completed SERVICE 8 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 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 Engineer ID Number Comments 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
87. fficient 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 4 4 2 Using installation templates An installation template is supplied with the boiler to aid wall mounting The template shows the following 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 Attach the template to the wall using tacks for example gt Mark the drill holes for the hanging bracket on the wall gt If necessary mark the position for the wall breakthrough for the air flue gas duct gt Remove the installation template from the wall gt Drill 2 holes 10 mm for the hanging bracket in the wall gt If necessary cut the wall breakthrough for the air flue gas duct 4 5 Dimension drawing and connection dimensions 323 9 N bs A Vaillant 3 4 5 6 A E 5 y i ic 7 Ny 4 OSES 9 O mM 35 35 100 100 4 3 Connection dimensions for ecoTEC plus VUI GB 376
88. ficient then install an additional expansion vessel connected as close to the boiler as possible into the heating return pipe When using an external expansion vessel together with a VUI boiler it is advisable to install a non return valve in the outlet heating flow or take the internal expansion vessel out of service Otherwise the warm start function may be more frequently activated because of backflow which causes unnecessary energy loss Vessel volume in 1 Initial system pressure in bar 1 0 1 5 Expansion relief valve setting in MPa bar 0 3 3 0 With system volumes greater than 100 I multiply the volume by the adjacent factor 6 1 Size of an additional expansion vessel 23 6 2 Connecting the hot and cold water 6 1 Fitting the hot and cold water connection gt Make the domestic hot and cold water connections as shown gt Ensure correct water pressure and flow requirements and that any expansion can be accommodated with the cold supply pipe work 2 section 2 5 7 6 3 Connecting pipe connections between the layered storage tank and the boiler 6 2 Fitting the pipe connections between the layered storage tank and the boiler 24 gt Fit the supplied pipe elbows and straight pipelines in the specified sequence The pipe elbows 1 and 2 must be fitted first 6 4 Connecting the heating flow and heating return 6 3 Fitting the heating
89. fig 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 38 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 Comfort operation 9 2 Overview of the menu structure for installer level part 2 Installation and maintenance instructions ecoTEC plus 0020134833_01 39 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 fo
90. flow and heating return gt Connect the water as shown 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 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 6 6 Connecting the condensate discharge pipework Danger Risk of death from flue gases An empty or insufficiently filled condensate siphon may allow flue gas to escape into the room air gt Make sure that the condensate siphon is filled with water when switching on the boiler The ecoTEC plus boilers are eguipped 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 nf Internal discharge system Internal Soakaway stackpipe Gulley 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 19mm 22 mm outside diameter for all ex
91. flue gas duct What to do if you smell gas Installation errors damage tampering with the unit unau thorised installation sites or the like 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 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 tampering with the unit unau thorised installation sites or similar 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 full
92. fter each adjustment until the value stabilises Press the Cancel selection button once the settings have been made When the adjusting work is complete screw the covering cap back in again Put the front casing back on gt section 4 8 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 CO value with full load ppm lt 250 lt 250 CO CO2 lt 0 0031 lt 0 0026 12 1 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 tab 12 1 call the Vaillant Service Solutions 0870 6060 777 gt Do not start up the boiler Result F 92 Coding resistor fault Meaning 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 12 1 5 Performing the gas family check Danger Risk of poisoning CO is an extremely toxic gas Risk of death due to excessive CO concentrations Fault codes F 92 or F 93 may occur as
93. g 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 be maintained and the boiler kept clear of any clothing 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 ins
94. g only one of the two components PCB or display the parametrisation functions automatically By switching on the boiler the new component takes over the previously set parameters from the unreplaced component 82 14 11 2 Replacing the PCB and the display on the boiler at the same time Setting the language and unit type If you are replacing both components you must detach the coding resistor gt fig 14 17 pos 1 plug X24 at the front left from the old PCB and plug it into the new PCB anguage 14 18 Setting the language If you are replacing both components at the same time if a Spare part is required the boiler switches directly to the menu for selecting the language after switching on The default language setting is English You can select the lan guage that you require using the minus and plus buttons and confirm with OK You are then automatically taken to the unit type setting D 093 gt Select the correct value for the relevant unit type in accordance with gt tab 14 1 After confirmation the display restarts itself automatically and then starts the installation assistant Device specific ecoTEC plus number DSN 937 VUI GB 376 5 5 17 14 1 Device specific number for the unit type The electronics are now set to the unit type and the param eters of all adjustable diagnostics codes are set to default settings gt Implement the system specific settings gt se
95. gulations 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 Engineers Signature Customer s Signature To confirm satisfactory demonstration and receipt of manufacturer s literature benchinan THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS 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 E
96. he boiler 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 layered storage tank may come loose and fall down This may also cause leaks in the gas line which is potentially fatal gt When installing the layered storage tank ensure that the fixing elements and the 1 wall have a sufficient load bearing capac ity gt Check the quality of the wall 4 6 Wall mounting the boiler gt Lift the VUW boiler 2 onto the layered storage tank so that it is slightly above the hanging bracket on the lay ered storage tank 1 Raise the VUW boiler on both sides of the floor gt Slowly lower the VUW boiler onto the hanging bracket on 4 5 Wall mounting the layered storage tank the layered storage tank so that the suspension bracket on the rear side of the VUW boiler completely engages gt Mount the hanging bracket 1 on the wall using the rawl into the hanging bracket on the layered storage tank plugs and screws 2 provided with the unit gt Hang the layered storage tank 3 on the suspension bracket from above using the hanging bracket 20 Installation and maintenance instructions ecoTEC plus 0020134833_01 4 8 Removing fitting the front casing Caution Risk of damage caused by mechanical tension AE 4 7 Removi
97. he 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 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 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 4 1 2 Installation and operation Optional accessories are available for use in conjunction with the installation and operation of the ecoTEC The current price list shows the complete range of hydraulic accessories for the ecoTEC plus series 4 2 Scope of delivery The layered storage tank and boiler are delivered preassem bled in a packaging unit 4 21 Unpack the layered storage tank gt Remove the layered storage tank from its box gt Remove the p
98. he 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 gt Replace the defective fan 75 14 Replacing components 14 4 Replacing the gas valve Caution Risk of material damage caused by mak ing unauthorised settings Modifications to the gas pressure regulator of the gas valve may destroy the gas valve and cause operating faults on the boiler gt Never modify the factory setting of the gas pressure regulator of the gas valve 14 5 Installing the gas valve gt Refit the components in reverse order It is imperative 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 valves with gas pressure regulators 1 gt fig 14 7 are not installed in all boilers There are also versions withou
99. he integrity off the flue gas installation according to TB 008 gt Should the flue gas installation be longer than 2 m 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 10 12 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 reguire adjustment With the front casing fitted check the gas flow rate of the boiler as follows gt Start the boiler by activating the test program P O1 as described in gt section 10 4 gt In addition ensure that maximum heat can be dissipated into the heating system by turning up the room thermo Stat gt Alternatively fully open the hot water taps to ensure full flow rate through the boiler gt Wait at least
100. he 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 section 10 12 4 The gas flow rates as described in gt section 10 12 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 electric 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 de energising the b
101. hes 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 sec tion 11 3 gt Remove the front casing gt section 4 8 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 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 74 14 1 2 Completing replacement work gt Perform a gas family check after working on the gas route 2 section 12 1 5 Caution Operating fault or a reduction in the working life of the boiler The leak detection spray may damage the boiler gt Do not spray the leak detection spray on the covering cap on the filter of the Ven turi gt Check the boiler for gas leaks gt Reattach the front casing section 4 8 gt Perform a function check section 10 13 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 su
102. hould only access the installer level if you are an approved competent per son The installer level is secured against unauthorised access with a password because incorrect parameter settings at this level may cause functional faults and damage to the heating installation 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 hand 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 Jor the plus button HD gt Press the right hand selection button to con firm 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 installer level and then access it again within 15 minutes you do not have to enter the code again Installation and maintenance instructions ecoTEC plus 0020134833_01 37 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 con
103. i ira 13 Air flue gas duct 27 87 Air flue gaS EE 27 Article NUMBET Siirsin in a 5 AuxXiliaty Tela sccsscsescscsessessssevesessiessessescsceeasies Socsedescnessceass 34 41 52 B BUS SE De ee ee Ge ee ee ee SE ie 63 65 Burner anti cycling time 55 69 87 C Cal OFFIC EIER OE RE tesesioassesscaanies 87 Checking Sol EE EE DE N N 65 Connection PreSSUF ese sesse se see Re SR ee SR Re Re RE 47 Cylinder charging ssessssesessssesesssresessssesesessesesessesessssesessssese 49 Eunieti n of DOIE Eie ees ee i a ee ee 48 ie aile AE EE EE Oe 47 Heating mode LEAKS EE Ge ee ee ge Ge ee Ad Vee ek ee 48 Pressure of the expansion vessel on the boiler 68 Pressure of the expansion vessel on the layered storage CAMK RE ORE RE EE OE EN 68 SCOPE OF CELIVELY N N 13 Circulation PUMP esse sesse se see Re ee ee Re RE 34 51 52 63 EOMLOFLMOdS ME EG ease Ge ee 41 COMMISSIONING Lees se see se ee SR Re Se Re Se Re Se Re Se Re Re ee 40 Compact thermal module 63 87 Condensate discharge pipework sssessseesessssesessssessssssesesses 25 CondensateSiDhON rs ede ke ee de ee Ee ged 45 66 Condensing technologY esse esse sesse se Re Se Re Se Re Re ee 87 Connecting Additional component sesse se ee ee SR Re Re ee 34 Auxiliary relay Cold and hot water ui Condensate discharge pipeWorK sessssesesessesessseesessssese 25 Contrellef EE RE eg EG ee 33 Discharge pipe for expansion relie
104. ility Relay with disable facility D 047 Outside temperature with weather con trolled Vaillant controller Actual value in C Not adjustable D 050 Offset for minimum speed In rpm setting range O to 3000 Nominal value set in factory D O51 Offset for maximum speed 11 1 Diagnostics codes continued 52 In rpm setting range 990 to O Nominal value set in factory Installation and maintenance instructions ecoTEC plus 0020134833_01 tion via impeller 11 1 Diagnostics codes continued 37 min and 2 s delay Installation and maintenance instructions ecoTEC plus 0020134833_01 no delay Code Parameters Adjustable values Factory set Koun own ting setting D 058 Activation of solar post heating for VUW Solar post heating mode deactivated Solar post boilers Hot water activation target value minimum 60 C heating mode Switch hot water mode deactivated D 060 Number of temperature limiter shut Number of shutdowns ot adjustable downs D O61 Number of ignition device cutoffs Number of unsuccessful ignitions in the last attempt Not adjustable D 064 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 ot adjustable D 068 Unsuccessful ignitions at 1st attempt Number of unsuccessful ignitions Not ad
105. ing legs when lifting load from floor level Do not twist reposition feet instead Keep boiler as close as possible to body throughout lift to minimise strain on back Always use assistance if required Recommend wear suitable cut resistant gloves with good grip to protect against sharp edges and ensure good grip when handling appliance 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 2fig 4 2 Vaillant 4 2 Recommended 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 50 mm D 500 mm in front of the boiler to enable easy access for mainte nance work 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 9 It is not necessary to ensure su
106. ion may be made viaa3 A fused double pole isolator having a contact opening of at 32 least 3 mm in all poles and supplying the boiler and control lers 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 3 core flexible cord according to BS 6500 tables 6 8 or 16 3 x 0 75 to 3 x 1 5 mm 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 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 8 4 Cable routing of the mains connection cable gt Use the strain reliefs 1 provided Shorten the mains connection cable as necessary gt Only strip the outer sheathing of the supply lines to a maximum of 3 cm gt Ensure that the inner conductor insulation is not dam aged when stripping the outer sheathing gt Only strip inner conductors just enough to establish good sound connections gt Fit the stripped ends of the conductors with crimp pin terminals to ensure a secure connection free from loose strands and to thus prevent short circuits gt Connect
107. ipe 4 Burner door 5 Premix burner gt Switch off the boiler using the on off switch gt Close the gas isolator cock on the boiler 63 gt Close the service valves on the boiler gt Remove the front casing from the boiler gt section 4 8 gt Fold the electronics box forwards gt section 8 2 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 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 corru gated gas pipe and the fixed gas pipe 64 ZANY SP ZS D DEAN a7 Z SSG ESA 12 4 Removing the compact thermal module gt 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 gt Remove the plug 4 gt fig 12 4 from the fan motor gt Remove the three plugs from the gas valve 5 gt fig 12 4 gt Remove the plug from the Venturi 3 gt fig 12 4 gt Release the cable harness from the clip on the gas valve retainer gt Unscrew the four nuts 8 gt fig 12 4 gt Remove the entire compact therm
108. itted 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 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 ers can be connected via the eBUS The eBUS communications protocol simplifies 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 functions e g circulation pump external heating pump external solenoid valve or response from the flue non return flap 87 19 Appendix Installation Commissioning and Service Record DCNCHINIGT COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AN
109. justable D 069 Unsuccessful ignitions at 2nd attempt Number of unsuccessful ignitions ot adjustable D O7O Set diverter valve position Normal operating mode Normal oper Mid position parallel operation ating mode Continuous heating adjustment D O71 Target value maximum heating flow tem 40 to 80 C 75 C perature D O72 Internal pump overrun after cylinder Adjustable from O 10 minutes in increments of 1 2 mins charging minute D 073 Warm start target offset Adjustable from 15 K to 5 K o D 074 actoSTOR Anti legionella function OFF ON ON D O75 Max charging time for domestic hot 20 90 min 45 mins water cylinder without independent con trol system D O76 Device specific number 17 VUI 937 ER Not adjustable D O77 Limit on cylinder charging output Limit on cylinder charging output in kW in kW D O78 Limit on cylinder charging temperature 55 C 80 C 75 C in SC Note The chosen value must be at least 15 K or 15 C above the set cylinder target value D O8O Operating hours heating In hours h ot adjustable D O81 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 an
110. l consumption W 33 Level of protection IP X4 D Certification number CE 0085CM0320 Layered storage tank Capacity of the layered storage tank 15 Weight of the layered storage tank kg 17 Operating weight of the boiler and layered storage tank kg 83 filled with water 171 Technical data for ecoTEC plus VUI boiler continued 86 Installation and maintenance instructions ecoTEC plus 0020134833 01 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 the 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 pipe the flue gas chan nel is sealed from the air channel Floor standing boilers and gas fired wall hung boilers can be operated as room sealed 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 heaters 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 Cal
111. lectronics electronics flame monitor defective gas solenoid valve leaking F 28 Failure during start up Ignition unsuccessful Gas meter defective or gas pressure monitor has triggered air in gas gas flow pressure too low thermal isolator device TAE has triggered condensate duct blocked incorrect gas restrictor incorrect spare part gas valve fault on the gas valve multiple plug on PCB incorrectly plugged in break in cable harness ignition system ignition transformer ignition cable ignition plug ignition electrode defective ionisation cur rent interrupted cable electrode incorrect earthing of boiler electron ics 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 on fan not correctly plugged in multiple plug on PCB not correctly plugged in break in cable harness fan blocked Hall sensor defective electronics defective F 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 ness at heat exchanger or gas group resistor on PCB Installation and maintenance instructions ecoTEC plus 0020134833_01 71 tion with F 91 Code Meaning Cause F 49 eBUS fault Short circuit on eBUS eBUS
112. lectronics box gt section 8 1 gt In order to achieve pump operating mode Comfort continuously running pump for multi circuit controllers change the diagnostics code D 018 Pump operating mode from Eco intermittent pump to Comfort sec tion 11 1 2 Please note that the bridge at the ProE plug Li Burner off must be removed when connecting a maximum thermostat contact thermostat for underfloor heating 33 8 6 Connecting additional components Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far may cause short circuits and dam age the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables to a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs You can actuate an additional component with the aid of the auxiliary relay that is installed in the ecoTEC plus VUI GB 937 and you can actuate two other components using the multi functional module You can actuate the following components Circulation pump External pump 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 6 1 gt Perform the wiring in the same way as in gt section 8 5 gt To start up th
113. 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 yellow H gas grey liquid gas 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 underside of the gas restrictor 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 gt Refit the components in reverse order Use new seals for this gt After installing the new Venturi perform a gas family check gt section 12 1 5 and a gas ratio setting gt sec tion 10 12 78 14 6 Replacing the expansion vessel gt Drain the boiler section 12 2 2 gt Loosen the screwed connection 4 at the water connec tion on the underside of the expansion vessel Remove both bolts 1 on the support plate 2 Remove the support plate 2 Pull out the expansion vessel 3 towards the front Insert the new expansion vessel into the boiler Screw the
114. ling and during commissioning 11 3 Description of the unit Design The ecoTEC plus 937 consists of a15 litre layered storage tank and a modified VUW boiler Cold water that is heated by the VUW boiler is fed into the insulated layered storage tank by a modulating cylinder charging pump The VUW boiler supplies the layered storage tank with elec trical energy for the cylinder charging pump 3 1 Layered storage tank functional elements Key Layered storage tank expansion vessel Impeller sensor Cylinder charging pump NTC temperature sensor for domestic hot water Pressure relief valve for the layered storage tank UI RUN 12 3 2 Boiler functional elements 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 Bypass valve 15 Expansion relief valve 16 Electronics box 17 Diverter valve with bypass 18 Impeller sensor hot water 19 Secondary heat exchanger OmANDUKRWN Installation and maintenance instructions ecoTEC plus 0020134833_01 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 t
115. lowing a regular shutdown in heating mode can be called up under diagnostics code D 067 Set maximum burner anti cycling time min 11 2 Effective burner anti cycling times Installation and maintenance instructions ecoTEC plus 0020134833_01 Trecea target o C ye Ed EN eee ee ese ee 20 45 0 60 0 25 41 0 54 5 30 37 0 49 5 35 33 0 44 0 40 29 0 38 5 45 25 0 33 0 50 12 0 Ji40 185 21 0 55 10 0 11 5 5 0 fo foo 205 225 60 75 j 1 5 EE 15 5 65 so foo fmo ns 70 5 0 5 5 60 65 75 1 0 1 0 1 0 55 1st option Menu gt Reset burner anti 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 hand selection button Select 2nd option gt Press the fault clearance key gt 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 11 1 7 Setting the pump output The ecoTEC plus boiler is equipped with a two stage pu
116. me damaged if they come into contact with hot parts of the unit gt Observe the routing of the cable gt Open the electronics box gt section 8 2 8 3 Cable routing in the electronics box gt Guide the pump cable 2 with the plug X12 along the outside of the electronics box gt Plug the pump cable s plug X12 into the slot X12 right hand side of the PCB gt Guide the sensor cable 1 with the plug X31 to the PCB gt Plug the sensor cable s plug X31 into the slot X31 left hand side of the PCB gt Secure the cable over the cable terminals in the elec tronics box 8 2 Cable routing on the underside of the unit gt Guide the layered storage tank s cable harness 2 with the grommets 3 through the attached cable ducts on the layered storage tank and boiler On the boiler use the cable duct 1 gt Secure the grommets on the cable ducts using the enclosed spring clips Installation and maintenance instructions ecoTEC plus 0020134833_01 31 fe 4 Establishing the mains connection 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 establishing a mains connection switch off the power supply gt Caution Risk of damage caused by an incorrect
117. mp 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 diagnostics code D O19 Setting options gt tab 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 Hot water handling stage 2 2 Automatic heating mode pump flow overrun stage 1 Hot water handling 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 bypass valve 11 3 Guideline values for operating hours gt Set the operating hours until the next service using diag nostics code D 084 Guideline values for the setting can be found in gt tab 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 diagnostics code D 084 but instead enter the symbol then the Maintenance display function is not active On completion of the set operating hours you must set the maintenance interval again in the diagnostics mode 56 Number of Burner operating hours until the Heat demand ersons MR N A A EN The boilers have a bypass valve 2 9 y YP The pressure is adjustable in the range between 17
118. n and maintenance instructions ecoTEC plus 0020134833_01 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 Part 1 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 may cause changes in the seals noises during heating and may lead to further damage gt Do not use any unsuitable frost or corrosion protection agents Mixing additives with the heating water may result in mate rial damage However no incompatibility with Vaillant boil ers has so far been found if the following products are used properly 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 Addi
119. nal 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 25 mm 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 25 mm 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 preferred For IE recommendations are given in the current edition of IS 813 For 1and 2 above you can use the Variable Termination Kit to move the termination point away from the building fab ric Article numbers 0020060584 White 0020060585 Black Installation and maintenance instructions ecoTEC plus 0020134833_01 29 8 Electrical installation 8 1 Preparing for installation 8 2 Opening closing the electronics box Opening the electronics box gt Remove the front casing from the boiler gt section 4 8 Danger Risk of death from electric shock Touching live connections may cause seri ous personal injury gt Switch off the power supply gt Secure the power supply against being switched back on again Danger Risk
120. new expansion vessel to the water connection 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 gt section 12 4 7 gt Fill and purge the boiler and the system if necessary after installing the new expansion vessel 2 section 10 7 gt On completion of the work check for water leaks vVvvvyvy y 14 7 gt Drain the boiler section 12 2 2 gt Remove the compact thermal module gt section 12 4 1 gt Detach the condensate discharge hose from the heat exchanger Replacing the heat exchanger Caution Risk of damage to the heat exchanger gt You can neither loosen nor tighten the four bolts gt fig 14 13 pos 1 Installation and maintenance instructions ecoTEC plus 0020134833_01 Caution Risk of damage to the boiler Mineral oil based lubricants may damage the seals The seals must therefore not be lubricated gt Only use water or commercially available soft soap if necessary to assist with the installation NY ms P With the new heat exchanger ensure that you a x AI xl use the cable with the coding resistor and the VAN correct plug BE AE ae O A 14 12 Replacing the heat exchanger gt Install the new heat exchanger in reverse order gt Replace the seals gt Detach the clamps 2 gt fig 14 12 and 3 gt fig 14 12 gt Insert the flow and re
121. ng 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 underside 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 gt Place the front casing on the upper brackets gt Push the front casing onto the boiler until both retaining clips 2 snap into place at the front casing gt Secure the front casing by screwing in the bolt 1 on the underside of the boiler 4 9 Removing fitting the side panel You can also remove a side panel for installation or mainte nance purposes Installation and maintenance instructions ecoTEC plus 0020134833_01 Removing both side panels may cause mechanical distortion in the boiler which can cause damage to the piping for exam ple and potentially result in leaks gt Always only remove one side panel never both side panels at the same time 4 8 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 gt Unscrew the two bolts 2 from the
122. nt 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 Service Solutions 0870 6060 777 for further details Installation and maintenance instructions ecoTEC plus 0020134833_01 17 Technical data ecoTEC plus Nominal heat output range P at 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 Minimum heat input G20 Minimum heat input G31 Minimum heat output for G31 Heating output setting range Heating 937 VUI GB 376 5 5 kW 71 3041 kW 6 4 28 6 kW 38 7 kW 39 2 kW 8 5 kW 6 28 Max flow temperature Max flow temperature setting range factory setting 75 C oC Min pressure for full operation MPa bar Permissible total overpressure Expansion vessel capacity Condensate rate approx pH value 3 5 4 0 MPa bar Circulation water quantity with reference to AT 20 K i h 1204 Water volume at AT 42 K in heating mode 50 C flow 30 C return n 29 Remaining feed head of pump at nominal circulation MPa bar 0 020 0 20 water volume Hot water handling Lowest water volume I min 1 5 Water volume
123. oiler The installation assistant appears 40 each time the unit is switched on until all steps have been completed successfully You must confirm the start of the installation assistant Once confirmed all of the heating and hot water require ments 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 hand selection button to confirm the selected language The language change must be confirmed a second time in order to avoid an unintentional change gt Press the right hand selection button and the plus but ton simultaneously and hold them down gt Press the fault clearance key for a short time gt Press and hold the right hand selection button and the plus button until the option for changing the language appears on the display gt Select the language of your choice using the minus but ton or the plus button 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
124. oiler via an isolating device with a contact opening of at least 3 mm 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 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 using 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 8 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 gt sec tion 10 13 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 n
125. ombination 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 other 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 Part 1 for Small Bore and Micro Bore central heating installa Installatio
126. on gt section 12 3 13 4 Running test programs also reset all parameters at once gt Set the value of the diagnostics code parameter D O96 to 1 section 11 1 You have now reset all parameters to factory settings By activating various test programs you can trigger special functions on the boiler gt tab 10 1 The display shows which test program you have chosen gt Read how to start the test programs in gt section 10 4 Installation and maintenance instructions ecoTEC plus 0020134833_01 73 14 Replacing components The work described in this section must only be carried out by a 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 technicalspares 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 switc
127. orific 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 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 Installation and maintenance instructions ecoTEC plus 0020134833_01 Digital information and analysis system DIA The Vaillant ecoTEC plus boiler is f
128. play gt sec tion 13 2 1 Menu gt Live monitor Installation and maintenance instructions ecoTEC plus 0020134833_01 10 13 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 Heating mode Burner on 10 9 Live monitor display during heating mode If the boiler is operating correctly 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 13 2 Checking the hot water generation gt Switch on the boiler gt Open a hot water valve all the way gt Activate the Live monitor 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 10 10 Display for hot water generation Installation and maintenance instructions ecoTEC plus 0020134833_01 10 13 3 Checking the cylinder charging The cylinder charging of the layered storage tank is only active if Comfort mode is switched on If Comfort mode is activated the symbol C appears in the display gt operating instructions Cylinder charging is deactivated ex works and must be activated during initial commissioning When cylinder charging is switched on the following tem peratures can be set for the domes
129. plug of the ignition line 7 gt fig 12 9 and the ground connection 8 gt fig 12 9 to the ignition electrode Attach the plug 4 gt fig 12 9 to the fan motor Attach the three plugs to the gas valve 5 gt fig 12 9 Attach the cable to the Venturi 3 gt fig 12 9 Installation and maintenance instructions ecoTEC plus 0020134833_01 dd 5 77 12 10 Tightening the cap nuts on the gas valve gt Connect the gas supply 6 Fig 12 9 to the gas valve with a new seal 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 Open the gas isolator cock on the boiler and ensure there are no leaks Check that the sealing ring in the air intake pipe is posi tioned correctly in the seal seat Insert the air intake pipe 1 gt fig 12 3 back into the intake stub Attach the air intake pipe using the retaining screw 2 gt fig 12 3 67 12 4 7 Checking the pressure of the expansion vessel on the boiler 12 11 Check the pressure of the expansion vessel on the boiler The service valves of the boiler must be closed gt Measure the pressure of the expansion vessel at the measuring stub pipe 1 of the vessel while the boiler is depressurised gt Top up the expansion vessel at a pressure of less than 0 75 bar in accordance with the static height of the heat
130. r D O17 the automatic heating output determination function is not active If you set D OOO to auto anyway the boiler oper ates 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 hand selection button All of the digits to the right will be deleted Installation and maintenance instructions ecoTEC plus 0020134833_01 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 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 Installation assistant 10 3 Appliance configuration and diagnostics 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 p
131. r 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 fitted or open air flue gas duct or if the boiler is operated with inter nal 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 fitted gt For test purposes only such as gas flow pressure testing the boiler may be oper ated with the front casing removed for short durations ONLY but must have a completely installed air flue gas duct The automatic air vent cap must be released before filling the heating circuit or recharging circuit and during operation Purge the heating circuit or the recharging cir cuit using the purge program POO gt sec tion 10 4 Auxiliary service equipment The following test and measuring equipment is required for commissioning CO measuring instrument Digital or U tube manometer 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 the boiler is switched on for the first time It provides easy access to the most important test programs and configuration settings for installing the b
132. racticable Ensure stable balance achieved and lift upwards to drop into place onto bracket If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler Ensure coordinated movements during 2 person lifts to ensure equal spread of weight of load If 1 person positioning onto bracket recommend obtain firm grip supporting base of boiler Ensure safe lifting techniques are used keep back straight bend using legs when lifting load from floor level Do not twist reposition feet instead Keep boiler as close as possible to body throughout lift to minimise strain on back Always use assistance if required 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 where practical Obtain firm grip on front and sides of appliance lift upwards ensure stable balance achieved and lift upwards to drop into place onto bracket If 2 persons positioning onto bracket obtain firm grip at front and sides base of boiler Ensure co ordinated movements during 2 person lifts to ensure equal spread of weight of load If 1 person positioning onto bracket recommend obtain firm grip supporting base of boiler Ensure safe lifting techniques are used keep back straight bend us
133. re that the nose on the burner window grips the seal inside the recess in the burner gt Reinstall the compact thermal module gt section 12 4 6 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 or 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 from the cor rugated gas pipe Installation and maintenance instructions ecoTEC plus 0020134833_01 14 3 Removing the gas valve and Venturi from fan gt Remove t
134. ronics box gt section 8 2 gt Route the supply lines of the components to be con nected e g external controllers external sensors through the left cable duct gt fig 8 1 pos 4 on the underside of the boiler gt Use the strain reliefs 1 provided gt Shorten the supply lines as necessary gt Only strip the outer sheathing of the supply lines to a maximum of 3 cm gt Ensure that the inner conductor insulation is not dam aged when stripping the outer sheathing gt Only strip inner conductors just enough to establish good sound connections Installation and maintenance instructions ecoTEC plus 0020134833_01 Fit the stripped ends of the conductors with crimp pin terminals to ensure a secure connection free from loose strands and to thus prevent short circuits Connect the ProE plug to the supply lines of the control ler using a screwdriver Insert the ProE plug into the associated PCB slot gt fig 8 5 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 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 gt Close the e
135. rotective film from all parts of the layered storage tank 4 2 2 Unpacking the boiler gt Remove the boiler from its box gt Remove the protective film from all parts of the boiler 4 2 3 Checking the scope of delivery gt Check that the scope of delivery is complete and that all parts are intact gt fig 4 1 and gt tab 4 2 4 1 Scope of delivery for the ecoTEC plus boiler and layered storage tank Lower cover of the boiler Installation template Service valves Supply pipes gas heating water expansion relief valve Adapter set consisting of connection pipes between the layered storage tank and VUW boiler for heating flow and return and water flow and return Bags with parts incl electrical plug and cable clamps Condensate discharge hose 1m Enclosure documentation Lower cover of layered storage tank Layered storage tank Wall bracket 4 2 Scope of delivery for the ecoTEC plus boiler and layered storage tank 4 2 4 Disposing of the packaging gt Dispose of the cardboard packaging used on the ecoTEC plus at a cardboard recycling site gt Dispose of the plastic film and plastic filling at an appro priate plastic recycling site gt Observe valid national regulations 4 3 Transporting the appliance Important With regards to the Manual Handling Operations 1992 Reg ulations the following lift operation e
136. section 8 5 gt Connect the supply line of the external button with ter minals X41 1 0 and X41 6 FB on the PCB fig 8 5 The edge connector required for this is included with your controller To operate a circulation pump we recommend using the accessory set with article number 0020057235 Using a circulation pump negatively affects hot water comfort as it causes turbulence and dis rupts the stratification in the cylinder 3 B C gt Limit the flow rate of the circulation pump in order to prevent the hot water handling from being negatively affected Using a circulation pump increases energy con Li sumption Installation and maintenance instructions ecoTEC plus 0020134833_01 8 8 Connection diagrams X51 Display X22 E Pump PWM signal Connection 8 gt EE VY 7 oa a Gas valve MEd O A 5 7 Holding magnet ES Ee X25 EEN white io 3 ed Stepper motor 5 lt 4 gt 6 ol 3 Mass flow 6 2 sensor 12 8 7 C 17 2 EN ME Diverter HA valve 18 gt Pom 14 gt s Water pressure 13 gt 3 sensor X2 11 2 4 blue
137. service partner if possible please mention the fault code that is 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 diagnostics Menu gt Installer level gt Test programs gt Function menu gt Use the function menu for fault diagnostics gt sec tion 12 3 13 2 1 Calling 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 0020134833_01 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 S10 Hot water requirement via flow sensor ST DHW mode fan start up S13 DHW mode ignition S14 DHW mode burner on S15 DHW mode pump fan overrun S16 DHW mode fan overrun S 17 DHW mode pump overrun DHW mode VUI Comfort mode warm start
138. ss 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 Short circuit cylinder sensor NTC only in combina NTC defective short circuit in cable harness cable casing tion 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 water pressure or water pressure is too low in the boiler water pres sure sensor defective cable to pump or water pressure sensor loose not connected defective 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 temperature limiter STB break in cable harness F 26 Fault Gas valve without function Gas valve stepper motor not connected multiple plug on the PCB not plugged in correctly interruption in cable harness gas valve stepper motor defective electronics defective F 27 Safety switch off Flame simulation Moisture on the e
139. t 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 fitted gt For test purposes only such as gas flow pressure testing the boiler may be oper ated with the front casing removed for short durations ONLY but must have a completely installed air flue gas duct gt After completing the installation stick the 835593 sticker in the user s language to the front of the boiler The sticker is delivered with the boiler You must brief the operator of the boiler on the handling and function of the ecoTEC pro gt Explain the importance of regular maintenance by a competent heating 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 Complete the Benchmark gas boiler commissioning checklist which is found at the end of these instructions If this boiler is not installed and commissioned in accord ance with the manufacturer s instructions this may void the guarantee Note Your legal rights remain unaffected by this Hand the boiler over to the operator 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 instr
140. t 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 installing the new fan gt section 12 1 5 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 76 Installation and maintenance instructions ecoTEC plus 0020134833_01 The plug on the Venturi has latching lugs with Li which it engages in the slot You have to release the latching lug by pushing it in to pull off the plug Remove the plug from the Sensor of the venturi 1 gt fig 14 8 Unscrew the two cap nuts at the top 5 gt fig 14 8 and bottom 4 gt fig 14 8 of the gas valve Counterhold at the opposite side of gas valve when unscrewing or unscrew both cap nuts at the same time Unscrew the fixing screw 3 gt fig 14 8 of the gas valve out of the bracket Since the fixing screw is difficult to access beneath the retaining plate alternatively you can remove the entire fan assembly gt sec tion 14 3 Remove the gas valve from the bracket Refit the new gas valve in reverse order Use new seals When the cap nuts are being screwed
141. t bridged controller F 80 Interruption or short circuit of inlet sofa second NTC defective NTC cable defective defective plug connection on NTC ary heat exchanger only in connection with F 91 defective plug connection on actoSTOR electronics Sensor plug has short to earth to the casing short circuit in cable harness sensor faulty F 81 actoSTOR load pump defective only in combina Cylinder is not fully charged after specified time Check cylinder charging sensor and cylinder sensor Air in the actoSTOR pump Check the cable harness to the pump Check the impeller sensor and or limiter in the boiler Diverter valve defective Secondary heat exchanger blocked Pump defective 13 2 Fault codes continued 72 Installation and maintenance instructions ecoTEC plus 0020134833_01 Code Meaning Cause F 83 Flow and or return temperature sensor tempera When the burner starts the temperature change registered at the flow ture change fault and or 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 temperature Flow and return temperature sensors returning implausible values 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 temper
142. tall 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 the boiler must be of an adequate 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 1B for systems up to 0 035 m 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 inst
143. ternal pipes and is made from an acid resistant material e g plastic overflow pipe Installation and maintenance instructions ecoTEC plus 0020134833_01 The condensate discharge pipework must have a continuous fall 45 mm per metre and should whenever possible terminate at a suitable dis charge 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 Before starting up the boiler the condensate siphon 2 must be filled with water as described in the relevant section 25 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 an
144. tervals 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 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
145. the water flows into the heating system gt Purge the lowest radiator until water flows out of the purging valve without bubbles gt Purge all other radiators until the entire heating system has been filled with water 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 Filling the heating installation Ensure that the filling and drainage tap on the heating installation is connected to a cold water valve in accordance with the 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 10 7 2 Purging the heating installation 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 heating 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 o
146. 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 4 gt Lay the lines correctly gt Secure the cable in the electronics box using the strain reliefs gt Close the electronics box gt section 8 2 y Installation and maintenance instructions ecoTEC plus 0020134833_01 Ensure that the connection cables are securely i fastened to the plug terminals 8 5 Connecting the controller 8 5 1 Fitting the controller gt Fit the controllers in accordance with the relevant oper ating and installation instructions 8 5 2 Connecting controllers to the electronic system Caution Risk of damage caused by incorrect installation Connecting wires that have been stripped too far may cause short circuits and dam age the electronics if a strand accidentally comes loose gt Only strip the outer sheathing of flexible cables to a maximum of 3cm to prevent short circuits gt Lay the lines correctly gt Use strain reliefs Caution Risk of damage caused by incorrect installation A mains voltage at the incorrect plug termi nals on the ProE system may destroy the electronics gt Do not connect a mains voltage to the eBUS terminals Ensure that the conductors are securely fas tened to the plug terminals of the ProE plug gt Open the elect
147. therwise this will not be carried out properly The test program POO 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 pa 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 43 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 The entire heating system must be flushed once hot in accordance with the following instructions remove the contamination caused during installation out of the heating system before the boiler is started up gt Close the drain cocks gt Refill the heating system with water 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 necessar
148. tic hot water tempera ture operating instructions minimum temperature 50 C maximum temperature 65 C When cylinder charging is switched off the following tem peratures can be set for the domestic hot water tempera ture minimum temperature 35 C maximum temperature 65 C If cylinder charging is switched off the cylinder is not held at temperature If you draw off the water the boiler switches on and in this case only operates on the through flow principle Danger Risk of scalding The boilers are equipped with an automatic Anti legionella function If the temperature in the domestic hot water cylinder falls below 50 C for 24 hours the cylinder is heated up to 70 C once gt If this is the case try not to draw off any water gt If required in consultation with the operator switch the Anti legionella function off using diagnostics code D 074 section 11 1 gt Activate the Live monitor 2 section 13 2 1 When the cylinder charging mode is working correctly the display shows S 24 The displayed status code is also explained by the plain text display DHW mode Burner on 49 DHW mode Burner on 10 11 Display for cylinder charging mode 10 14 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 lo
149. tion and maintenance WOFK esse se sesse se ee se Re 62 Menu StructOie sr ss ie Se ni t ee k 38 Pararneters sisie sesse Sako a 51 52 53 Status codeS ie sesse de SEE ee SE oe iee 69 P Preparing Electrical installation se sesse se ee ee Se Re SR Re Se Re 30 Gas installation esse se sesse ee Re Re GR ee Re Re RE 22 Hydraulic installation se sesse se ese Se ee Se Re Se Re Se Re 23 Pump operating mode sesse se see se ee SR Re SR ee Se Re 51 54 Vee dak VR DO itoe en EE 54 Purge Heating installation sesse se sesse ee ee Se Re Re Se Re 43 Installation and maintenance instructions ecoTEC plus 0020134833 OI R Removing Boiler diSplaY ese Ge Na 81 Boiler PCB w 81 BUENO eet er Eer ese EER TA Compact thermal module esse se sesse se ee Re Re RE 63 Expansion vessel on the boiler sesse se sesse se ee Se Re 78 RE EE EE EE 75 76 Erontcasind is ee Es done ed Ek Ge E do des 21 Gas valve wo eee 76 Heat exchanger 78 Impeller sensor on layered storage tank we 81 Layered storage tank cylinder charging pump 80 Layered storage tank expansion vessel sesse sesse 80 PCB on the layered storage taNK iesese sesse see se see Re 83 Side paneha see Ge Ee Ge ede Ed ee Ee ede NE 21 Ventufri a TT Repair 74 AE EE AE EE 70 S Setting Burner anti cycling time BYPASS valVe esse sesse be Heating partial load esse sesse see se ee Se Re Se SR ee Ge ee Re ET
150. tion and maintenance instructions ecoTEC plus 0020134833_01 2 Safety 2 1 Safety and warning information gt When installing the ecoTEC plus you must observe the basic safety instructions and the warning notes that appear before all of the actions 2 1 Classification of warnings The warnings are classified in accordance with the severity of the possible danger using the following warning signs and signal words Warning Signal Explanation symbol word Imminent danger to life or 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 Type and source of danger Explanation of the type and source of danger gt Measures for averting the danger Installation and maintenance instructions ecoTEC plus 0020134833_01 2 2 Intended use The Vaillant ecoTEC plus boilers are constructed using state of the art technology in accordance with the recog nised safety rules and 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
151. tives 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 about the measures required if you have used these additives gt Inform the operator about the measures required for frost protection Permissible water hardness gt Observe all valid national regulations and technical standards when treating the filling and supplementary water Installation and maintenance instructions ecoTEC plus 0020134833_01 Provided the national regulations and technical standards do not stipulate more stringent requirements the following applies gt You must treat the heating water in the following cases If the entire filling and 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 gt 20 I kW lt 20 I kW 50 1 kW gt 50 I kW kW mol m mol m mol m mg l CaCO3 mg l CaCO3 mg l CaCO3 No require ment or lt 50 lt 3 lt 300 2 1 5 0 02 gt 50 to lt 200 200 150 2
152. to the gas valve counterhold at the opposite side of the gas valve or tighten both cap nuts simultaneously gt fig 14 6 After installing the new gas valve perform a gas family check gt section 12 1 5 and a gas ratio setting gt sec tion 10 12 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 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 y 14 10 Removing the gas connecting pipe 7 gt Remove 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 ver tically Dispose of the seal 6 gt fig 14 10 gt Pull off the gas restrictor 5 gt fig 14 10 in a straight direction and dispose of it gt Check whether the Venturi is free of residue at the gas inlet side Danger Risk of poisoning due to increased CO levels Using the wrong gas restrictor size can cause higher CO
153. tructions gt The following safety information must be observed 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 heating specialist company thus making these terms gender neutral 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 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 installing 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 installed air flue gas duct for commissioning for test purposes for continuous operation Otherwise under unfavourable operating conditions injury death or material damage may occur For test purposes only such as gas flow pressure testing the boiler may be operated with the front casing removed for short durations ONLY but must have a completely installed air
154. turn connections into the heat from the flow connection and the return connection exchanger as far as they will go gt Detach the flow connection from the heat exchanger gt Detach the return connection from the heat exchanger Make sure that the brackets are seated correctly gt Remove two bolts 1 gt fig 14 12 from each of the two Li on the flow and return connections brackets of the heat exchanger gt Reinstall the compact thermal module gt section 12 4 6 gt Fill and purge the boiler and if necessary the heating installation gt section 10 7 gt Disconnect the plug connection 2 gt fig 14 13 of the thermal fuse in the heat exchanger gt Remove the bottom three bolts 3 gt fig 14 13 from the rear part of the heat exchanger bracket gt Swivel the bracket around the top bolt 1 gt fig 14 13 to one side gt Pull the heat exchanger downwards and to the right and remove it from the boiler Installation and maintenance instructions ecoTEC plus 0020134833_01 79 14 8 Replacing the expansion vessel of the layered storage tank gt Close the cold water stop valve gt Open a hot water valve to depressurise the water circuit Close the hot water valve gt Unscrew the bolt from the cover of the layered storage tank gt Remove the cover 14 14 Replacing the expansion vessel of the layered storage tank The expansion vessel 1 is freely accessible gt
155. uck 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 gt If removing boiler from truck straddle the load and tilt forwards to facilitate secure grip gt Ensure safe lifting techniques are used keep back straight bend using legs gt Do not twist reposition feet instead gt Take care to avoid trip hazards slippery or wet surfaces and climbing steps and stairs gt 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 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 Avoid upper body top heavy bending do not lean forward sideways gt Clear the route before attempting the lift gt If removing boiler from truck straddle the load and tilt forwards to facilitate secure grip
156. uctions with the operator Answer any questions the operator may have gt Make the operator aware of the need to keep the instruc gt gt Installation and maintenance instructions ecoTEC plus 0020134833_01 tions near the boiler but not in or on the boiler Draw special attention to the safety information which the operator must follow Instruct the operator that no changes or adjustments must be made to the flue gas guiding or combustion air supply These must both terminate outside of the build ing 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 installation 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 57 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 in
157. ur face 2 on the back of the heat exchanger The water flows out of the heat exchanger through the con densate siphon Installation and maintenance instructions ecoTEC plus 0020134833_01 IN GEKOS EG D7 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 65 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 may escape into the room air gt Top up the condensate siphon after each cleaning session 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 66 12 4 5 Cleaning the filter in the cold water inlet 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 gt gt gt gt gt Close the
158. ves and disconnect the filling device by pulling the double non return valve from the cold water stop valve 10 10 Fill and purge the hot water system 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 gt Open all domestic hot water draw off points gt Open the cold water stop valve on the boiler The water then flows through the boiler and the layered storage tank to the domestic hot water draw off point gt Fill the hot water system by opening all the hot water draw off points until water comes out gt Starting with the bottom lowest lying draw off point close all of the domestic hot water draw off points one after the other The hot water circuit has thus been completely filled and purged Installation and maintenance instructions ecoTEC plus 0020134833_01 10 11 Filling the condensate siphon 10 12 Checking the gas ratio setting 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 Caution Risk of material damage caused by mak ing unauthorised settings Modifications to the gas pressure regulator of the gas valve may destroy the gas valve and cause operating faults on the boiler gt Never modify the factory setting of the
159. xceeds 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 14 Installation and maintenance instructions ecoTEC plus 0020134833_01 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 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 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 tr
160. y 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 pressure 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 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 44 through completely at least twice once cold and 10 9 Topping up the VUI boiler using a filling device 10 3 Filling the VUI boiler using a filling device The VUI 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 the 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 val
161. y and ensure adequate ventilation gt Switch the boiler off gt Check the flue gas route in the boiler and the flue gas pipes 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 Bleeding the liquid gas tank when installing the system gt Before installing the boiler make sure that the gas tank has been bled The liquid gas supplier is responsible for proper ventilation of the tank Ignition problems can result if the tank is not bled 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 12 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

Installation manual ecoTEC plus 937 installation & service manual

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Installation manual ecoTEC plus 937 installation &amp; service manual

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Installation manual ecoTEC plus 937 installation & service manual