Vaillant ecoTEC exclusive Installation And Maintenance Instructions Manual Download Page 1

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Installation and maintenance instructions

ecoTEC exclusive

VCW 266/5

‑

7 (N-DE)

Publisher/manufacturer
Vaillant GmbH

Berghauser Str. 40

D-42859 Remscheid

Tel. +49

‑

Fax +49

‑

2810

[email protected]

www.vaillant.de

Summary of Contents for ecoTEC exclusive

Page 1: ...n and maintenance instructions ecoTEC exclusive VCW 266 5 7 N DE DE Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 21 91 18 0 Fax 49 21 91 18 2810 info vaillant de www vaillant de ...

Page 2: ... 7 8 Filling the heating installation 18 7 9 Purging the heating installation 18 7 10 Filling and purging the hot water system 18 7 11 Filling the condensate siphon 18 7 12 Starting up the heat generator 19 7 13 Gas inspection 19 7 14 Checking leak tightness 20 8 Adapting the unit to the heating installation 20 8 1 Calling up diagnostics codes 20 8 2 Burner anti cycling time 20 8 3 Setting the mai...

Page 3: ... main tenance conditions listed in the instruc tions Intended use also covers installation in ac cordance with the IP code Any other use that is not specified in these instructions or use beyond that specified in this document shall be considered improper use Any direct commercial or industrial use is also deemed to be improper Caution Improper use of any kind is prohibited 1 3 General safety info...

Page 4: ... 3 7 Risk of death due to cabinet type casing Cabinet type casing can give rise to danger ous situations when used on a product which is operated with an open flue Ensure that the product is supplied with sufficient combustion air 1 3 8 Risk of poisoning caused by insufficient combustion air supply Conditions Open flued operation Ensure that the air supply to the product s installation room is per...

Page 5: ...ustion air is always free of fluorine chlorine sulphur dust etc Ensure that no chemical substances are stored at the installation site If you are installing the product in hairdressing salons painter s or joiner s workshops cleaning businesses or similar locations choose a separate installation room in which the room air is technically free of chemical substances Ensure that the combustion air is ...

Page 6: ...Heat exchanger 19 Ignition electrode 20 Air intake pipe 21 Volume flow sensor 22 Water pressure sensor 3 2 Information on the identification plate The identification plate is mounted on the underside of the product in the factory Information on the identification plate Meaning Read the instructions VC W Type designation 6 5 7 Calorific value power product generation equipment ecoTEC exclusive Prod...

Page 7: ...ber Designation 1 Product bracket 1 Enclosed items for securing the product 1 Heat generator 1 Condensate discharge hose 1 Expansion relief valve connection pipe 1 Gas family coding resistor 1 Mounting template 1 Noise insulation 1 Enclosed documentation 1 Bag with small parts 4 3 Dimensions 620 20 720 A B 125 180 130 440 188 160 100 100 35 35 12 1 3 4 5 3 5 6 7 11 4 6 9 10 2 7 8 1 Flue pipe wall ...

Page 8: ... Wall mounting the product 1 Check whether the wall has sufficient load bearing ca pacity to bear the operational weight of the product 2 Check if the supplied fixing material may be used for the wall Conditions The load bearing capacity of the wall is sufficient The fixing material may be used for the wall Wall mount the product as described Conditions The load bearing capacity of the wall is not...

Page 9: ...ing for ex ample and potentially result in leaks Depressurise the product on the water side Always remove only one side section never both side sections at the same time Remove the side section as shown in the illustration 5 Installation Danger Risk of scalding and or risk of material damage due to incorrect installation lead ing to escaping water Stresses in supply lines can cause leaks Install t...

Page 10: ...e to the filler nozzle 5 1 2 Purging the liquid gas tank If the liquid gas tank is not purged properly this may result in ignition problems Ensure that the liquid gas tank has been purged properly before installing the product If required contact the filler or the liquid gas supplier 5 1 3 Using the correct type of gas Using the incorrect type of gas may cause fault shutdowns in the product Igniti...

Page 11: ...necting the heating flow and heating return 1 Establish the heating connections 1 in accordance with the relevant standards 5 6 Connecting the condensate discharge pipe Danger Risk of death from escaping flue gases The siphon s condensate drain pipework must not be connected to waste water piping because otherwise the internal condensate siphon may be drained fully and flue gas may escape Do not c...

Page 12: ...fic standard equipment is listed under Technical Data in the appendix 2 Remove the connection piece for the air flue pipe Page 12 3 Alternatives If required install the connection piece for the separate air flue gas ducting 80 80 mm diameter Page 12 5 8 2 1 Removing the connection piece for the air flue pipe A B C 1 Insert a screwdriver into the slot between the measuring stub pipes 2 Press the sc...

Page 13: ...sure that the rated voltage of the mains is 230 V 1 Plug the mains plug into a suitable plug socket 2 Make sure that access to the mains connection is al ways available and is not covered or blocked 5 9 4 Installing the product in a wet room Danger Risk of death from electric shock If you install the product in a room with high levels of moisture e g a bathroom observe the nationally recognised te...

Page 14: ...actuate two other components with the multi functional module 5 9 8 1 Using the auxiliary relay 1 Connect an additional component directly to the integ rated auxiliary relay using the grey plug on the PCB 2 Carry out the wiring 3 Activate the component via D 026 see section Adapt ing to the heating installation 5 9 8 2 Using the VR 40 2 in 7 multi functional module 1 Install the components in acco...

Page 15: ...essing in each case 7 2 1 Language Set the required language To confirm the set language and to avoid unintentionally changing it press to confirm this twice If you have unintentionally set a language that you do not understand proceed as follows to change it Press and hold and at the same time Also briefly press Press and hold and until the display shows the language setting option Select the req...

Page 16: ...d Liquid gas conversion sticker onto the data plate and affix the enclosed tank sticker propane quality so that it is clearly visible on the tank or the cylinder cabinet if pos sible close to the filler nozzle 7 2 11 Contact data If required store your telephone number in the Appli ance config max 16 digits no blank spaces The oper ator can view the telephone number 7 2 12 Ending the installation ...

Page 17: ...ional regulations and technical standards when treating the filling and supplementary water In particular observe VDI directive 2035 sheets 1 and 2 Provided the national regulations and technical standards do not stipulate more stringent requirements the following applies You must treat the heating water in the following cases If the entire filling and supplementary water quantity dur ing the oper...

Page 18: ...ing water supply 6 Open all thermostatic radiator valves 7 If necessary check that both service valves on the product are open 8 Slowly open the filling and drainage tap so that the wa ter flows into the heating system 9 Purge the lowest radiator until water flows out of the purging valve without bubbles 10 Purge all other radiators until the entire heating system has been filled with water 11 Clo...

Page 19: ...splayed S 85 is displayed The circulation in the heating sys tem is not sufficient After max five minutes S 04 is displayed Press to end the check programme All calibration points have been determined 7 13 Gas inspection 7 13 1 Checking the gas flow pressure 1 Close the gas isolator cock 2 Remove the front casing Page 9 1 1 3 Use a screwdriver to undo the sealing screw of the measuring nipple 1 at...

Page 20: ...installation it may be the case that the product runs through the measuring programme several times During the calibration process no flue gas analysis is possible 7 14 Checking leak tightness Check the gas pipe the heating circuit and the domestic hot water circuit for leak tightness Check that the air flue pipe has been installed correctly Conditions Room sealed operation Check whether the vacuu...

Page 21: ...ntenance in and confirm by press ing 2 Set the maintenance interval operating hours until the next maintenance work is due and confirm by pressing Heat de mand Number of per sons Guideline value for burner operating hours until the next inspection maintenance work is due for an average operating time of one year dependent upon the system type 5 0 kW 1 2 1050 h 2 3 1150 h Heat de mand Number of per...

Page 22: ...r that he must not make any changes If the product is equipped with a communication unit for connecting to a broadband Internet connection point out to the end user that they can download an app from Google Play or the App Store and use it for mobile operation In this case point out to the end user the product inform ation sticker with Data Matrix Code that is on the rear of the front flap as they...

Page 23: ... factory settings 1 Navigate to Menu Installer level Diagnostics menu D 096 Reset to factory settings and con firm by pressing 2 Press to set the value to 1 and confirm by pressing 9 6 Preparing the repair work 1 Temporarily decommission Page 29 the product 2 Disconnect the product from the power mains 3 Remove the front casing Page 9 4 Close the service valves in the heating flow in the heat ing ...

Page 24: ...n 1 Remove the air intake pipe 2 Remove the gas valve Page 23 4 2 3 1 3 Remove all plugs from the fan 1 4 Unscrew the three screws between the mixture pipe and the fan flange 5 Replace the defective fan 6 Reinstall the new fan in the reverse order You must use new seals for this Ensure that the order in which the three screws are screwed in between the fan and the mixture pipe corresponds to the n...

Page 25: ...l the water hammer arrest er s casing Note To make the installation easier use only the lubricant that may be included with the Vaillant spare part If no lubricant is included with the Vaillant spare part use only water or commercially available soft soap 22 Ensure that the clamps on the heat exchanger s con nections are seated correctly 23 Install the compact thermal module Page 28 24 Install the...

Page 26: ...ug 4 Reinstall the new all gas sensor in the reverse order 9 8 Completing repair work 1 Establish the power supply 2 Switch the product back on if this has not yet been done Page 15 3 Install the front casing 4 Open all service valves and the gas isolator cock 9 9 Checking the product for leak tightness Check that the product is leak tight Page 20 10 Inspection and maintenance Adhere to the minimu...

Page 27: ...screw the cap nut from the gas valve 3 1 2 3 7 5 6 4 7 Remove the ignition line plug 6 and the earth line plug 5 from the ignition electrode 8 Remove all plugs from the fan motor 3 by pushing in the latching lug 9 Remove the two plugs from the gas valve 4 10 Unscrew the four nuts 7 11 Remove the entire compact thermal module 2 from the heat exchanger 1 12 Check the burner and the heat exchanger fo...

Page 28: ...10 Reconnect the air intake pipe to the intake nozzle 11 Secure the air intake pipe with the retaining screw 12 Check the gas flow pressure Page 19 10 4 Cleaning the condensate siphon 1 Remove the lower section of the siphon 2 Flush out the lower section of the siphon with water 3 Fill the lower section of the siphon with water up to about 10 mm below the upper edge 4 Re fit the lower section of t...

Page 29: ...ce the expansion vessel Page 25 4 Fill the heating installation Page 18 5 Purge the heating installation Page 18 10 8 Completing inspection and maintenance work Check the gas flow pressure Page 19 Check the CO content Page 20 If required reset the maintenance interval Page 21 Install the front casing 10 9 Checking the product for leak tightness Check that the product is leak tight Page 20 11 Decom...

Page 30: ...setting Min Max Installer level Enter code 00 99 1 competent person code 17 Installer level Fault list F XX F XX Current value Installer level Test programs Check programs P 00 Purging Yes No P 01 Maximum load Yes No P 02 Minimum load Yes No P 04 Reset eGas CH Yes No P 06 Filling mode Yes No P 14 Reset eGas DHW Yes No Installer level Test programs Function menu T 01 Internal pump On Off T 02 3 way...

Page 31: ...Legionella protection pump not active 10 Solar valve not active 2 Accessory relay 2 1 10 1 Circulation pump 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active 2 Heating partial load kW Partial load only full load only a...

Page 32: ... remote control not active 9 Legionella protection pump not active 10 Solar valve not active 2 Accessory relay 1 1 10 1 Circulation pump 2 External pump 3 Cylinder charging pump 4 Extractor hood 5 External solenoid valve 6 External fault message 7 Solar pump not active 8 eBUS remote control not active 9 Legionella protection pump not active 10 Solar valve not active 2 Accessory relay 2 1 10 1 Circ...

Page 33: ... target value Not ad justable D 006 Outlet temperature target value Current value C Target domestic hot water tem perature value only products with integrated domestic hot water gen eration Not ad justable D 007 Cylinder temperature tar get value Comfort mode target value Current value C Only products with integrated do mestic hot water generation Only products with no integrated domestic hot wate...

Page 34: ...n ex ternal control 3 Eco intermittently operating pump Internal pump is switched on every 25 minutes for 5 minutes once the overrun time has elapsed 3 D 020 Max DHW temperature target value 50 70 C Max set value for target cylinder value 1 65 D 022 DHW demand Current value Domestic hot water requirement via C1 C2 impeller or APC 0 Off 1 On Not ad justable D 023 Heating mode status Current value S...

Page 35: ... m h Actual value Circulation water volume for flow sensor Not ad justable D 033 Fan speed target value Current value rpm Not ad justable D 034 Fan speed actual value Current value rpm Not ad justable D 035 3 way valve position Current value Position of the prioritising diverter valve 0 Heating mode 1 Parallel operation mid position 2 DHW mode Not ad justable D 036 DHW flow rate Current value l mi...

Page 36: ...ing mode 1 Mid position parallel operation 2 Permanent heating position 0 D 071 Max heating target flow temp 40 80 C Target value maximum heating flow temperature 1 75 D 072 Pump overrun after cylin der charging 0 10 min Internal pump 1 2 D 073 Offset setting for comfort mode 15 5 K Only products with integrated do mestic hot water generation 1 0 D 074 Anti legionella funct with integrated cyl 0 1...

Page 37: ...rror 2 Connection active Not ad justable D 093 Adjust Device Specific Number 0 999 VCW 266 5 7 N DE 205 D 094 Clear fault history 0 1 0 No 1 Yes D 095 Software version PeBUS participant Current value 0 BMU 1 AI 2 APC 3 SMU 0 D 096 Reset to factory settings 0 1 0 No 1 Yes D 118 CO sensor fault number Current value 1 Heater short circuit 2 Heater open circuit 3 Heater temperature control fault 4 Hea...

Page 38: ...nt via impeller sensor S 11 DHW mode Fan start up DHW mode Fan start up S 13 DHW mode Ignition DHW mode Ignition S 14 DHW mode Burner on DHW mode Burner on S 15 DHW mode Pump fan overrun DHW mode Pump fan overrun S 16 DHW mode Fan overrun DHW mode Fan overrun S 17 DHW mode Pump overrun DHW mode Pump overrun S 19 DHW mode Measuring program DHW mode Measuring programme Comfort mode warm start or dom...

Page 39: ...imitation due to noise wind S 59 Waiting time Water circulation vol Minimum circulation water volume S 76 Service message Check water pressure System pressure too low Top up water S 85 Service message Check water circulation volume Service message Check water circulation volume S 86 Service message Check vortex sensor Service message Check vortex sensor S 87 Service message Check differential pres...

Page 40: ... incorrectly installed F 25 Safety switch off Flue temp too high Break in plug connection for optional flue gas safety cut out SCO break in cable harness F 26 Fault Fuel valve not working Gas valve assembly stepper motor not connected multiple plug on the PCB not plugged in correctly interruption in cable harness gas valve assembly stepper motor defective electronics defective F 27 Safety switch o...

Page 41: ...cs defective replace the PCB F 56 Safety switch off CO limit exceeded Safety shutdown CO limit value exceeded A component in the combustion regulation is defective Contact fault at the gas valve assembly plug not plugged in cor rectly or not plugged in plug defective slot is defective loose con nection If the fault occurs again after being reset The gas valve assembly is defective F 57 Fault Measu...

Page 42: ... Cylinder is not fully charged after specified time Check cylinder charging sensor and cylinder sensor Air in the actoSTOR pump Inspect cable harness for pump Check the impeller sensor and or limiter in the product Prioritising diverter valve defective Secondary heat exchanger blocked Pump defective F 82 Fault Ext current anode External current anode not connected X43 edge connector with bridge mi...

Page 43: ...1 3 6 3 2 3 2 4 1 2 3 L N L N L N X16 L N 1 2 3 1 2 3 19 1 20 8 17 7 18 6 4 3 1 M 16 4 3 17 5 7 8 5 4 2 1 Masse PWM Hallsignal 24V 11 15 Burner Off BUS RT 24V X100 4 2 10 11 2 3 1 5 8 1 6 8 3 5 1 2 4 1 2 3 5 6 7 8 X30 X40 X51 X35 X31 X22 X90 2 1 T2 Fuse X12 X25 X21 X2 Opt X16 Fan X11 TL Pump X13 X18 CH Pump B off RT BUS X100 X24 X20 X101 X41 5 X51 X24 17 3 2 1 9 19 22 21 4 3 18 16 13 14 12 11 10 7...

Page 44: ...within the correct range carry out maintenance work X X 5 Check the CO content the air ratio of the product and if necessary adjust it Keep a record of this X X 6 Disconnect the product from the power mains Check that the electrical plug connections and other connections are seated correctly and correct these if necessary X X 7 Close the gas isolator cock and the service valves X 8 Drain the produ...

Page 45: ...chnical data General VCW 266 5 7 N DE ecoTEC exclusive Designated country des ignation in accordance with ISO 3166 DE Germany Approved unit categories II2N3P Gas connection boiler side 20 x 2 0 mm Flow return heating con nections boiler side 22 x 1 5 mm Hot and cold water con nection boiler side 15 x 1 5 mm Expansion relief valve connector min 15 mm Air flue gas connection 80 125 mm Condensate dra...

Page 46: ...CW 266 5 7 N DE ecoTEC exclusive Nominal heat output range P at 50 30 C 3 9 26 4 kW Nominal heat output range P at 80 60 C 3 4 24 6 kW Maximum heat output for hot water generation 35 3 kW Maximum heat input for hot water generation 32 7 kW Maximum heat input heating side 24 8 kW Minimum heat input 3 6 kW Heating adjustment range 3 26 kW Technical data Power loading G31 VCW 266 5 7 N DE ecoTEC excl...

Page 47: ... feed head of pump at nominal circula tion water volume 0 025 MPa 0 250 bar Technical data Hot water handling VCW 266 5 7 N DE ecoTEC exclusive Lowest water volume 1 5 l min Water volume at ΔT 30 K 14 4 l min Permitted overpressure 1 0 MPa 10 0 bar Required connection pressure 0 035 MPa 0 350 bar Hot water output temper ature range 35 65 Technical data Electrics VCW 266 5 7 N DE ecoTEC exclusive E...

Page 48: ...Appendix 48 Installation and maintenance instructions ecoTEC exclusive 0020189875_01 VCW 266 5 7 N DE ecoTEC exclusive Level of protection IP X4 D Test symbol registration no CE 0085CM0321 ...

Page 49: ... Decommissioning 29 Decommissioning temporarily 29 Diagnostics codes calling up 20 Discharge pipe expansion relief valve 11 Disposal packaging 29 Disposing of the packaging 29 Documents 6 Domestic hot water connection 11 Draining product 29 Drinking water post heating 22 E Electricity 4 Electronics box closing 13 Electronics box opening 13 Electronics self test 26 Ending installation assistant 16 ...

Page 50: ...essel 25 Replacing fan 24 Replacing gas family coding resistor 14 Replacing gas valve 23 Replacing heat exchanger 24 Replacing PCB and display 26 Replacing PCB or display 25 Replacing unit connection piece for the air flue pipe 12 Resetting burner anti cycling time 21 S Safety device 4 Schematic drawing 4 Self test 26 Serial number 6 Service message 22 Setting burner anti cycling time 20 Setting g...

Page 51: ......

Page 52: ...18 0 Telefax 021 91 18 2810 Auftragsannahme Vaillant Kundendienst 021 91 5767901 info vaillant de www vaillant de These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent We reserve the right to make technical changes 0020189875_01 ...

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