Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual Download

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Appendix

0020244995_02

ecoTEC

pro

Installation

and

maintenance

instructions

Wiring diagrams

E.1

Product connection diagram with integrated hot water generation

X18

X51

X20

24V

230V~

24V

230V~

X41

X22

Masse

PWM

Hallsignal

+24V

Burner Of

BUS

24V

X106

X30

X40 X51

X35

X31

X22

X90

Fuse

X12

X18

CH P

ump

B.of
f
RT
BUS

X106

X20

X41

X51

Main PCB

Operator control panel PCB

Outside temperature sensor, flow temperature
sensor (optional, external), DCF receiver

Circulation pump remote control

Gas valve

Return temperature sensor

Flow temperature sensor

Fan

Contact thermostat/burner off

24 V DC room thermostat

Bus connection (digital room thermostat/controller)

Diverter valve

Water pressure sensor

Impeller sensor

Warm start sensor

Internal pump

Ignition electrode

Depending on product type

Summary of Contents for ecoTEC pro 24

Page 1: ...lation and maintenance instructions ecoTEC pro VUW 6 5 3 GB IE 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 5 Preventing low water pressure 19 7 6 Flushing the heating installation for the first time cold 19 7 7 Filling the heating installation 19 7 8 Purging the heating installation 20 7 9 Filling and purging the hot water system 20 7 10 Filling the condensate trap 20 7 11 Gas inspection 20 7 12 Checking leak tightness 22 7 13 Thoroughly flushing the heating installation hot 22 8 Adapting the unit to...

Page 3: ... instructions 3 G Commissioning Checklist 41 H Opening of the flue pipe 45 H 1 Positioning of the opening of a fan supported flue gas pipe 45 I Horizontal terminal positioning 46 J Opening of the flue pipe below eaves and balconies 46 K Technical data 47 Index 50 ...

Page 4: ...onditions 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 information 1 3 1 R...

Page 5: ...ive rise to danger ous situations when used on a product which is operated with an open flue 0020244995_02 ecoTEC pro Installation and maintenance instructions 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 permane...

Page 6: ...ssment 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 During the appliance installation and any subsequent work such as the replacement of major parts it will be necessary to em ploy caution All installers and operatives in volved from unl...

Page 7: ...ng and ventilation for gas appliances of rated input not exceeding 70kW 1st 2nd and 3rd family gases BS 5449 Forced circulation hot water sys tems up to 45kW BS EN 6798 Installation maintenance of gas fired hot water boilers of rated input not exceeding 70kW net BS 5482 Part 1 Domestic butane and propane gas burning installations Institute of Gas Engineers Publications IGE UP 1B Edition 2 Tightnes...

Page 8: ...n be used to demon strate compliance with Building Regulations and should be provided to the customer for future reference Installers are required to carry out installation commission ing and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme Benchmark is managed and promoted by the He...

Page 9: ... manufac turer s site 3 5 Energy Saving Trust Endorsed Products Only the most energy efficient products can carry the Energy Saving Trust Endorsed Product brandmark making it easy for consumers to choose products that have met strict energy performance criteria Available for Boilers Heating controls and chemical inhib itors the Energy Saving Trust endorsed product brandmark gives consumers confide...

Page 10: ...r legs at the knee Hold the load as close as possible to your body If the unit is being lifted by two persons ensure your movements are coordinated during lifting If required get somebody to assist you in this 4 3 3 Transporting the box from the delivery point to the installation site ground floor It is recommended that two people lift the unit together Use safe lifting techniques keep your back s...

Page 11: ... 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 Install the product bracket 1 on the wall Hang the product on the product bracket...

Page 12: ...k tightness test If during gas leak tightness tests you have closed the gas isolator cock that is installed upstream of the product relieve the gas line pressure before you open this gas isolator cock Caution Risk of material damage caused by corro sion Due to non diffusion tight plastic pipes in the heating installation air gets into the heating water Air in the heating water causes corro sion in...

Page 13: ... to prevent the warm start function from being increasingly activated due to backflow 5 Install a tundish with siphon for the condensate dis charge and the exhaust pipe on the expansion relief valve Lay as short a drain line as possible at a down ward gradient away from the tundish 6 Insulate bare pipes exposed to environmental influ ences to protect them from frost using suitable insu lating mate...

Page 14: ...plug As with other pipe work insulate the condensate dis charge pipe to minimise any risk of freezing and beware when crossing cavities that the fall is maintained and the pipe sleeved Ensure that the condensate drain pipework terminates in a suitable location Further information can be obtained from BS 6798 Specification for installation of gas fired boilers of rated input not exceeding 70 kW net...

Page 15: ...ece for the air flue pipe this is installed at the factory Page 15 2 Insert the alternative connection piece In doing so pay attention to the latching lugs 3 Turn the connection piece clockwise until it clicks into position 5 8 2 3 Installing the connection piece with offset for the air flue pipe 60 100 mm diameter 1 Remove the connection piece for the air flue pipe this is installed at the factor...

Page 16: ... mains connec tion cable 8 Close the electronics box 9 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 moist environment 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 technical standards for electrical insta...

Page 17: ...roller 3 Plug the edge connector into the PCB slot X41 6 Operation 6 1 Operating concept The operating concept and the display and setting facilities of the operator level are described in the operating instruc tions An overview of the display and setting options in the installer level can be found in the section Overview of the installer level Page 17 6 2 Installer level overview S 31 Code D PF P...

Page 18: ...an the in stallation and apply suitable corrosion protection meas ures or fit a magnetic filter Check the pH value of the removed water at 25 C If the value is below 8 2 or above 10 0 clean the installa tion and treat the heating water Ensure that oxygen cannot get into the heating water Checking the filling and supplementary water Before filling the installation measure the hardness of the fillin...

Page 19: ...h service valves on the product are open 2 Connect a hose to the drain valve that is located at the lowest position in the heating system 3 Open the radiator valves and the drain valves so that the water can drain quickly Start at the next point in the system and open the purging valves on the radiators so that the contaminated water can completely drain 4 Close the drain cocks 5 Refill the heatin...

Page 20: ... Conditions The product design is not compatible with the local gas group Only Vaillant Service Solutions may perform a gas conver sion If a gas conversion to liquid gas has been carried out the smallest possible partial load is higher than is shown on the display The correct values can be found in the Technical data in the appendix Call Vaillant Service Solutions 0330 1003 143 Do not start up the...

Page 21: ... 1 3 2 3 kPa 13 0 23 0 mbar Permissible gas flow pressure for operation with G31 liquid gas 2 3 4 3 kPa 23 0 43 0 mbar 9 Should the pressure recorded at the reference test point in the boiler be lower than indicated check if there is any blockage in the pipework or if the pipework is un dersized Conditions Gas flow pressure not in the permissible range Caution Risk of material damage and operating...

Page 22: ...nt until the value stabilises After you have implemented the settings press If an adjustment is not possible in the specified adjust ment range you must not start up the product If this is the case inform Customer Service Refit the covering cap Install the front casing 7 12 Checking leak tightness Check the gas pipe the heating circuit and the domestic hot water circuit for leak tightness Check th...

Page 23: ...nti cycling time 1 Navigate to diagnostics code D 002 in the installer level and confirm by pressing 2 Set the burner anti cycling time and confirm by pressing TFlow tar get C Set maximum burner anti cycling time min 1 5 10 15 20 25 30 30 2 0 4 0 8 5 12 5 16 5 20 5 25 0 35 2 0 4 0 7 5 11 0 15 0 18 5 22 0 40 2 0 3 5 6 5 10 0 13 0 16 5 19 5 45 2 0 3 0 6 0 8 5 11 5 14 0 17 0 50 2 0 3 0 5 0 7 5 9 5 12...

Page 24: ...ion Right hand stop turned all the way down 0 035 350 If the radiators do not heat up sufficiently at the default setting In this case you must set the pump to the maximum speed Mid position 5 turns to the left 0 025 250 Default setting 5 further turns to the left from the mid position 0 017 170 If noises are produced in the radiators or radiator valves Install the front casing 8 6 Handing the pro...

Page 25: ...navigate to diagnostics code D 094 in the installer level Set the diagnostics code to 1 and confirm by pressing 9 4 Resetting parameters to factory settings 1 Navigate to diagnostics code D 096 in the installer level 2 Set the diagnostics code to 1 and confirm by pressing 9 5 Preparing the repair work 1 Decommission the product 2 Disconnect the product from the power mains 3 Remove the front casin...

Page 26: ... after the installa tion work has been completed 13 Refit the entire fan gas valve unit in reverse order You must use a new seal 5 for this 14 Ensure that the order in which the three screws are screwed in between the fan and the mixture pipe cor responds to the numbering 3 2 and 4 15 Tighten the cap nut 2 on the gas valve and the cap nut 8 between the gas pipes In the process secure the gas pipe ...

Page 27: ...low and confirm by pressing Product type number VUW 246 5 3 H GB ecoTEC pro 24 7 VUW 286 5 3 H GB ecoTEC pro 28 22 VUW 286 5 3 P GB ecoTEC pro 28 22 The electronics are now set to the product type and the parameters of all diagnostics codes are set to default settings 6 Make the system specific settings 9 7 Completing repair work 1 Establish the power supply 2 Switch the product back on if this ha...

Page 28: ...om the intake stub 6 Unscrew either the cap nut on the gas valve 3 or the cap nut 4 between the gas pipes 1 2 3 7 5 4 6 7 Remove the ignition line plug 5 and the earth line plug 6 from the ignition electrode 8 Remove the plug 3 from the fan motor 9 Remove the plug 4 from the gas valve 10 Unscrew the four nuts 7 11 Remove the entire compact thermal module 2 from the heat exchanger 1 12 Check the bu...

Page 29: ...asing 2 1 4 Tilt the electronics box forward 5 Remove the clamp 2 6 Remove the pipe 1 from the product 7 Rinse the filter under a jet of water holding it against the direction of flow 8 If the filter is damaged or it can no longer be cleaned sufficiently you must replace the filter 9 Refit the pipe 10 Reinsert the clamp 11 Always use new seals and retighten the cap nuts and the lock nut 12 Open th...

Page 30: ...ompleting inspection and maintenance work Once you have completed all maintenance work Check the gas flow pressure Page 21 Check the CO content and if necessary adjust it air index setting Page 22 If required reset the maintenance interval Page 23 10 10 Checking the product for leak tightness Check that the product is leak tight Page 22 11 Decommissioning 11 1 Temporarily decommissioning the produ...

Page 31: ...linder temperature target value Product with integrated domestic hot water generation and product with integrated domestic hot water genera tion and shift load cylinder 35 65 Product with heating mode only Frost protection is at 15 C then 40 to 70 C max temperature can be adjusted under D 020 Not ad justable D 008 Controller 3 4 Room thermostat open no heat requirement Room thermostat closed heat ...

Page 32: ... Heating mode status Heating on heating off summer mode Not ad justable D 025 Ext eBUS signal Cylinder char ging On Off Not ad justable D 026 Auxiliary relay 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 no...

Page 33: ... Nominal value set in factory D 058 Solar post heating 0 Solar post heating deactivated 3 DHW activation target value minimum 60 C thermo static mixer valve required between product and draw off point 0 Solar post heating deactivated D 060 Number of safety therm shut downs Number of shutdowns Not ad justable D 061 No of shut downs in ign flame controller Number of unsuccessful ignitions in the las...

Page 34: ... ad justable D 084 Maintenance in Adjustment range 0 to 3000 hrs and for deactivated D 088 Min DHW flow rate Start delay for hot water draw off detection via impeller only products with integrated hot water generation 0 1 5 l min and no delay 1 3 7 l min and 2 sec delay 1 5 l min and no delay D 090 eBUS controller Status of digital controller Recognised not recognised Not ad justable D 091 Status ...

Page 35: ... water mode is activated S 16 DHW mode Fan overrun The fan overrun for domestic hot water mode is activated S 17 DHW mode Pump over run The pump overrun for domestic hot water mode is activated S 20 DHW demand The domestic hot water demand is activated S 21 DHW mode Fan start up The fan start up for domestic hot water mode is activated S 22 DHW mode Pump pre run The pump prerun for domestic hot wa...

Page 36: ...lf test for the water pressure sensor is activated S 98 Flow return temperature sensor self test The self test for the flow return temperature sensor is activated S 99 Vaillant self test The Vaillant self test is activated C Overview of fault codes Note Since the code table is used for various products some codes may not be visible for the product in question Message Possible cause Measure F 00 In...

Page 37: ...assembly rinse PCB F 62 Fault Fuel valve switch off delay Delayed switch off sequence for the gas valve after the flame is extinguished Check Gas valve surface of the burner dirt plug cable har ness PCB F 63 Fault EEPROM EEPROM faulty Replace PCB F 64 Fault Electronics sensor Electronics safety relevant sensor or cable defective Check Flow sensor cable to the sensor flame recording sensor e g ioni...

Page 38: ...Communication fault between the display and the PCB in the electronics box Check Cable plug between the display and the PCB D Check programmes Overview Prüfprogramme Meaning P 00 Purging The internal pump is cyclically actuated The heating circuit and the domestic hot water circuit are ad aptively purged by automatically switching the circuits using the automatic air vent the automatic air vent s ...

Page 39: ... T2 Fuse X12 X2 X18 CH Pump B off RT BUS X106 X20 X1 X41 X51 L RT N 2 1 8 16 12 13 14 11 10 9 6 15 4 5 7 17 3 1 Main PCB 2 Operator control panel PCB 3 Outside temperature sensor flow temperature sensor optional external DCF receiver 4 Circulation pump remote control 5 Gas valve 6 Return temperature sensor 7 Flow temperature sensor 8 Fan 09 Contact thermostat burner off 10 24 V DC room thermostat ...

Page 40: ...correctly product must be voltage free Annually 8 Check that the gas stopcock and service valves function correctly Annually 9 Checking the condensate trap for dirt and cleaning it Annually 10 Checking the pre charge pressure of the expansion vessel If required at least every 2 years 11 Checking the insulating mats in the combustion area and replacing dam aged insulating mats If required at least ...

Page 41: ...ntenance instructions 41 G Commissioning Checklist Heating and Hotwater Industry Council HHIC www centralheating co uk Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the completed in full ...

Page 42: ...th the appropriate Building Regulations and then handed to the customer to keep for future reference GAS BOILER SYSTEM COMMISSIONING CHECKLIST CONTROLS Optimum start control Fitted Fitted Fitted Fitted ALL SYSTEMS Yes Yes CENTRAL HEATING MODE OR mbar OR mbar COMBINATION BOILERS ONLY Yes Yes DOMESTIC HOT WATER MODE OR mbar OR mbar Yes Temperature CONDENSING BOILERS ONLY Yes ALL INSTALLATIONS AND Ra...

Page 43: ...g system is serviced regularly and that the appropriate Service Interval Record is completed Service Provider SERVICE RECORD SERVICE 01 AND AND SERVICE 02 AND AND SERVICE 03 AND AND SERVICE 04 AND AND SERVICE 05 AND AND SERVICE 06 AND AND SERVICE 07 AND AND SERVICE 08 AND AND SERVICE 09 AND AND SERVICE 10 AND AND ...

Page 44: ...ow to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas sampling point Allow readings to stabilise before recording NOTE If no flue gas sampling point is present and the correct procedure is not specified in the manual consult boiler manufacturer for guidance CHECK...

Page 45: ...pipes 75 mm E Below eaves 200 mm F Below balconies or car port roofs 200 mm G From vertical wastewater pipes or down pipes 150 mm H From external or internal corners 200 mm I Above floors roofs or balconies 300 mm J From a surface facing a terminal 600 mm K From a terminal facing a terminal 1200 mm L From an opening in the car port e g door window which leads into the dwelling 1200 mm M Vertical f...

Page 46: ...hout affecting the performance of the boiler In order to ensure that the con densate plume does not affect adjacent surfaces the terminal should be extended as shown below Balcony eaves Gutter Adequately secured air flue gas pipe The flue pipe must protrude beyond any overhang 2 Dimension H This clearance may be reduced to 25 mm without affecting the performance of the boiler However in order to e...

Page 47: ...ate drain pipe work min 19 mm 19 mm 19 mm G20 natural gas flow pressure 2 0 kPa 20 0 mbar 2 0 kPa 20 0 mbar G31 propane gas flow pressure 3 7 kPa 37 0 mbar Gas flow rate at 15 C and 1013 mbar based on hot water generation if applicable G20 2 5 m h 2 9 m h Gas flow rate at 15 C and 1013 mbar based on hot water generation if applicable G31 2 2 kg h Min flue gas mass rate G20 2 47 g s 2 47 g s Min fl...

Page 48: ...y at 40 30 C 107 0 107 0 Nominal heat input ef ficiency stationary at 50 30 C 106 0 106 0 Nominal heat input ef ficiency stationary at 60 40 C 101 0 101 0 Nominal heat input ef ficiency stationary at 80 60 C 98 0 98 0 Technical data Power loading G31 VUW 286 5 3 P GB ecoTEC pro 28 Nominal heat output range P at 50 30 C 9 0 25 3 kW Nominal heat output range P at 80 60 C 8 2 24 0 kW Maximum heat out...

Page 49: ...al data Hot water handling mode VUW 246 5 3 H GB ecoTEC pro 24 VUW 286 5 3 H GB ecoTEC pro 28 VUW 286 5 3 P GB ecoTEC pro 28 Lowest water volume 2 0 l min 2 0 l min 2 0 l min Water volume at ΔT 30 K 11 0 l min 13 4 l min 13 4 l min Water volume at ΔT 35 K 9 6 l min 11 1 l min 11 1 l min Water volume at ΔT 42 K 8 0 l min 9 3 l min 9 3 l min Permitted overpressure 1 0 MPa 10 0 bar 1 0 MPa 10 0 bar 1...

Page 50: ...troller connecting 16 Corrosion 6 D Decommissioning 30 Decommissioning temporarily 30 Diagnostics codes calling up 23 Discharge pipe expansion relief valve 14 Display and setting options 17 Disposal packaging 30 Disposing of the packaging 30 Documents 8 Draining product 30 E Electricity 5 Electronics box closing 15 Electronics box opening 15 F Fan replacing 26 Fault codes 25 Fault memory calling u...

Page 51: ... heat exchanger 26 Replacing internal expansion vessel 27 Replacing PCB and display 27 Replacing PCB or display 27 S Safety device 5 Schematic drawing 5 Scope of delivery 9 Serial number 9 Service message 25 Setting bypass valve 24 Setting CO content 22 Setting maintenance interval 23 Setting pump output 24 Side section installing 12 Side section removing 12 Spare parts 25 Status codes 17 Switchin...

Page 52: ...re DE56 1JT Telephone 0330 100 3461 info vaillant co uk www vaillant co uk 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 0020244995_02 ...

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Vaillant ecoTEC pro 24, Installation And Maintenance Instructions Manual

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