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Installation and maintenance instructions ecoFIT sustain 0020230529_05

Status code

Meaning

S.98

Automatic test programme: Return temperature sensor, heating demands blocked.

S.99

Internal automatic test programmes

S.108

Purging the combustion chamber, fan in operation

S.109

Product's standby mode activated

D

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.

Fault code

Meaning

Possible cause

F.00

Fault: Flow temperature sensor

NTC plug not plugged in or has come loose, multiple plug on the PCB not
plugged in correctly, interruption in cable harness, NTC sensor defective

F.01

Fault: Return temperature sensor

NTC plug not plugged in or has come loose, multiple plug on the PCB not
plugged in correctly, interruption in cable harness, NTC sensor defective

F.10

Short circuit: Flow temperature sensor

NTC sensor defective, short circuit in the cable harness, cable/housing

F.11

Short circuit: Return temperature sensor

NTC sensor defective, short circuit in the cable harness, cable/housing

F.12

and

F.91

Short circuit: Cylinder temperature
sensor

NTC sensor defective, short circuit in the cable harness, cable/housing

F.13

Short circuit: Domestic hot water cylinder
temperature sensor

NTC sensor defective, short circuit in the cable harness, cable/housing

F.20

Safety shutdown: Overheating temperat-
ure reached

Incorrect earth connection between cable harness and product, flow or return
NTC defective (loose connection), stray spark via ignition cable, ignition plug
or ignition electrode

F.22

Safety shutdown: Water deficiency in the
boiler

No or insufficient water in the product, water pressure sensor de-
fective, cable to the pump or to the water pressure sensor loose/not
connected/defective

F.23

Safety shutdown: Temperature spread
too great (NTC1/NTC2)

Pump blocked, insufficient pump output, air in product, flow and return NTC
sensors connected the wrong way round

F.24

Safety shutdown: Temperature rise too
fast

Pump blocked, insufficient pump output, air in product, system pressure too
low, non-return valve blocked/incorrectly installed

F.25

Safety shutdown: Flue gas temperature
too high

Break in plug connection for optional flue gas safety cut-out (SCO), break in
cable harness

F.27

Safety shutdown: Fault in flame detec-
tion

Moisture on the electronics, electronics (flame monitor) defective, gas solen-
oid valve leaking

F.28

Fault: Ignition unsuccessful when starting
up

Gas meter defective or gas pressure switch has triggered, air in gas, gas
flow pressure too low, thermal cut-out has triggered, incorrect gas injector,
incorrect spare gas valve assembly, fault on the gas valve assembly, mul-
tiple plug on PCB incorrectly plugged in, break in cable harness, ignition sys-
tem (ignition transformer, ignition cable, ignition plug, ignition electrode) de-
fective, ionisation flow interrupted (cable, electrode), incorrect earthing of
product, electronics defective
Condensate siphon blocked

F.29

Fault: Flame loss

Gas supply temporarily stopped, flue gas recirculation, incorrect earthing of
product, ignition transformer has spark failure
Condensate siphon blocked

F.32

Fan frost protection function active: Fan
speed outside the tolerance values

Plug on fan not correctly plugged in, multiple plug on PCB not correctly
plugged in, break in cable harness, fan blocked, Hall sensor defective, elec-
tronics defective

F.49

eBUS fault: Voltage too low

Short circuit on eBUS, eBUS overload or two power supplies with different
polarities on the eBUS

F.61

Fault: Gas valve assembly control

Short circuit/short-to-ground in cable harness to gas valve assembly, gas
valve assembly defective (coils shorted to earth), electronics defective

F.62

Fault: Gas valve switch-off control

Delayed switch-off of gas valve assembly, delayed extinguishing of flame
signal, gas valve assembly leaking, electronics defective

F.63

Fault: EEPROM

Electronics defective

F.64

Fault: Electronics/sensor/analogue-to-
digital converter

Flow or return NTC short circuited, electronics defective

F.65

Fault: Electronics temperature too high

Electronics overheating due to external influences, electronics defective

Содержание 0010020392

Страница 1: ...en Installation and maintenance instructions ecoFIT sustain 825 835 0020230529_05 28 07 2020...

Страница 2: ...cient water pressure 26 9 6 Flushing the heating installation for the first time cold 26 9 7 Filling and purging the heating installation 26 9 8 Filling the domestic hot water circuit 27 9 9 Checking...

Страница 3: ...y direct use in industrial or commercial processes Any use other than those described in these instructions and any use that goes beyond what is described here 1 2 Qualification The person carrying ou...

Страница 4: ...ercially available soft soap to aid installa tion 1 3 3 Electricity The power supply terminals L and N remain live even if the unit main switch is switched off To prevent electric shocks proceed as fo...

Страница 5: ...t 1 3 10 Safety devices Install the necessary safety devices in the installation 1 4 Regulations directives laws standards Observe the national regulations stand ards directives ordinances and laws 1...

Страница 6: ...aillant group com Spares Enquiries Telephone 01773 596 615 To register your Vaillant appliance visit https self service vaillant co uk warranty registration Vaillant is a licensed member of the Benchm...

Страница 7: ...gas mass rate in hot water handling mode at P max 11 6 g s 13 8 g s 16 1 g s Flue gas temperature 80 C 60 C at P max 60 77 86 Flue gas temperature 80 C 60 C at P min 55 55 56 Flue gas temperature 50...

Страница 8: ...ume pH value between 3 5 and 4 0 at 50 30 C 1 84 l h 1 84 l h 1 84 l h P heating at nominal flow T 20 K 0 025 MPa 0 250 bar 0 025 MPa 0 250 bar 0 018 MPa 0 180 bar Technical data Domestic hot water VU...

Страница 9: ...with serial number Serial number For quality control purposes 3rd and 4th digits year of production For quality control purposes 5th and 6th digits week of production For identification purposes 7th...

Страница 10: ...y The boiler software is designed to recognise the potential for an overheat lockout and will shutdown before this happens To restart the boiler press the reset button on the boiler interface If the b...

Страница 11: ...w and return 1 Domestic hot water connection service valve 1 Gas stopcock 2 Connection pipe heating flow and return 1 Cold water connection pipe 1 Domestic hot water connection pipe 1 Gas pipe 1 Drain...

Страница 12: ...sequence the heat loss from the appliance casing during operation is very low Compartment ventilation is not required as the products are only certified and can only be fitted with a concentric flue s...

Страница 13: ...earance to noncombustible building material Vertical flue clearance to combustible building material 500 mm 1 500 mm J Above below and either side of an opening door air vent or opening window 300 mm...

Страница 14: ...avoid wall staining and nuisance from pluming depending on site conditions Terminals must be positioned so to avoid combustion products entering the building Support the flue at approximately one metr...

Страница 15: ...guard is required if persons could come into con tact with the terminal or the terminal could be subject to dam age If a terminal guard is required it must be positioned to provide minimum of 50 mm cl...

Страница 16: ...mplate Use the mounting template to ascertain the locations at which you need to drill holes 6 8 Wall mounting the product Note If you are using the rear air flue connection in stall the air flue pipe...

Страница 17: ...0020230529_05 ecoFIT sustain Installation and maintenance instructions 17 2x A B C D 6 10 2 Installing the side section Refit the components in the reverse order...

Страница 18: ...tightness of the gas valve assembly using a pressure of 11 kPa 110 mbar 7 2 Descaling the water Scale deposition increases as the water temperature in creases Descale the water as required 7 3 Check...

Страница 19: ...move all burrs 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 For any installa...

Страница 20: ...ferred option must not terminate in rain water drain 7 6 1 6 Internal termination downstream of sink waste 100mm 32mm 22mm 3 m Open end of pipe direct into gulley below ground level but above water le...

Страница 21: ...tronics box Follow the instructions in the reverse order 7 8 3 Cable route 2 1 1 230 V cable route 2 24 V cable or eBUS cable route 7 8 4 Carrying out the wiring Caution Risk of material damage caused...

Страница 22: ...e phase 230 V 50 Hz Fuse protection 3 A 7 Open the electronics box Page 21 8 Observe the routing of the power supply cable 1 in the electronics box in order to guarantee that there is no strain 30 mm...

Страница 23: ...sustain Installation and maintenance instructions 23 Condition When connecting a control 230 V 30 mm N L X1 230V RT Connect the control to the main plug Remove the bridge from the 24V RT plug 4 Close...

Страница 24: ...he Anti legionella measures in order to comply with the applicable regulations regarding legionella prevention Set the hot water temperature Condition Water hardness 3 57 mol m Water temperature 50 8...

Страница 25: ...ot 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 operating life...

Страница 26: ...alls below 0 05 MPa 0 5 bar the value flashes in the display If the water pressure falls below 0 03 MPa 0 3 bar the product switches off The display shows 0 0 MPa 0 0 bar Fault F 22 is stored in the f...

Страница 27: ...ue gas recirculation using the air analysis point 3 Use a flue gas analyser 4 If you discover unusual levels of CO or CO 2 in the sup ply air search for the leak in the flue system or for signs of flu...

Страница 28: ...stopcock 1 Remove the pressure gauge and retighten the sealing screw 2 for the measuring nipple Open the gas stopcock 1 Check the test nipple for gas tightness Install the front casing Page 16 Reset...

Страница 29: ...tting the burner anti 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 ma...

Страница 30: ...hot water temperature 50 3 Descale the water as required 11 Handing over to the end user At the time of commissioning complete all relevant sec tions of the Benchmark commissioning checklist located...

Страница 31: ...9 2 1 0 vol CO at full load 250 ppm 250 ppm CO CO 0 0031 0 0031 The value is OK The value is not OK you cannot start up the product Set the CO content Page 31 12 5 Setting the CO content Condition Th...

Страница 32: ...rd ing to the following sections 13 Install the two new burner seals 12 7 Cleaning the heat exchanger 1 1 Protect the open electronics box from spraying water 2 Clean the ribs of the heat exchanger 1...

Страница 33: ...trap 2 12 11 Cleaning the strainer in the cold water inlet 1 Close the main cold water supply line 2 Drain the product on the domestic hot water side 3 Remove the connector from the connection for th...

Страница 34: ...e last 10 fault messages are stored in the fault memory Call up the installer level Page 24 Navigate to the fault codes The number of faults that have occurred is shown in the display and the faults t...

Страница 35: ...33 13 5 3 Replacing the heat exchanger 1 Remove the front casing Page 16 2 Remove the gas air mixture unit Page 31 1 A B 3 Remove the gas pipe 1 1 2 3 2 4 A B 4 Remove the temperature sensor 3 5 Remo...

Страница 36: ...sel to the water connec tion To do this use a new seal 8 Attach the support plate using both screws 9 Fill and purge the product Page 26 and if required the heating installation 13 5 6 Replacing the P...

Страница 37: ...Replace the pressure sensor 1 2 1 Pull out the plug 2 Remove the clip 1 3 Remove the pressure sensor 2 4 Install the new pressure sensor 5 Reattach the clip 1 13 6 Checking the product for leak tightn...

Страница 38: ...ually 10 If the gas flow rate lies outside of the tolerances specified in these in structions eliminate the fault in accordance with the regulations and the current technology Annually 11 Check the ge...

Страница 39: ...for the product in question Dia gnostics code Parameter Values Unit Increment select explanation Default set ting Own setting Min Max d 00 Heating maximum output kW The maximum heating output varies...

Страница 40: ...de stage 2 pump flow overrun stage 1 1 Heating mode and pump flow overrun stage 1 hot water handling mode stage 2 2 Automatic heating mode pump flow overrun stage 1 hot water handling mode stage 2 3 S...

Страница 41: ...rature Current value Not adjustable d 41 Heating return temperat ure Current value Not adjustable d 43 Heating curve 0 2 4 0 1 1 2 Adjustable d 45 Value for the base point of the heating curve 15 30 1...

Страница 42: ...ter handling mode Current value h Running time Display value x 100 Not adjustable d 82 Number of burner igni tions in heating mode Current value Number of ignitions Display value x 100 Not adjustable...

Страница 43: ...stic hot water mode Fan prerun S 22 Domestic hot water mode Pump prerun S 23 Domestic hot water mode Burner ignition S 24 DHW mode Burner on S 25 DHW mode Pump fan overrun S 26 DHW mode Fan overrun S...

Страница 44: ...own Temperature rise too fast Pump blocked insufficient pump output air in product system pressure too low non return valve blocked incorrectly installed F 25 Safety shutdown Flue gas temperature too...

Страница 45: ...exchanger is defective Safety cut out feedback does not match the gas valve assembly feedback F 77 Fault Condensate or smoke No response flue non return flap defective F 78 Interruption to DHW outlet...

Страница 46: ...RT 230Vac X35 4 1 3 2 eBUS RT 24V Burner off X106 1 3 4 1 3 3 1 2 M 1 3 4 6 1 2 3 M 5 4 2 1 2 1 2 1 N L L 24V 230V 24V 230V 2 7 8 9 10 12 11 1 4 3 5 6 14 13 1 Main PCB 2 Interface PCB 3 Timer 4 Tempe...

Страница 47: ...30Vac 4 3 1 2 eBUS RT 24V Burner off X106 X35 1 3 4 1 3 3 1 2 M 1 3 4 6 1 2 3 M 4 3 2 1 5 4 2 1 5 6 7 8 2 1 2 1 N L L X35 24V 230V 24V 230V 2 7 8 9 10 12 11 1 4 5 6 14 13 3 1 Main PCB 2 Interface PCB...

Страница 48: ...mer and they should be made aware it is ultimately their responsibility to register with the manufacturer within the allotted time period It is essential that the boiler is serviced in line with the m...

Страница 49: ...t left at factory settings Yes No If no what is the maximum central heating output selected kW Dynamic gas inlet pressure mbar C Central heating return temperature C System correctly balanced rebalanc...

Страница 50: ...LER delete as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate CO ppm CO CO CO Min rate CO ppm CO CO CO undertaken in accordance with manufacturers instructio...

Страница 51: ...LER delete as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate CO ppm CO CO CO Min rate CO ppm CO CO CO undertaken in accordance with manufacturers instructio...

Страница 52: ...specify how to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas...

Страница 53: ...as setting 27 Gas air mixture removing 31 Guarantee and Customer Service 6 H Handing over to the end user 30 Heat exchanger cleaning 32 Heat exchanger replacing 35 High efficiency pump 29 High efficie...

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Страница 55: ......

Страница 56: ...lisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 492191 18 0 Fax 492191 18 2810 info vaillant de www vaillant de These instructions or parts thereof are protected by copyright...

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