Viessmann - Vitodens 333 - Lets FixIt · Vitodens 333 Type WS3A , 6.6 to 26.0 kW Compact gas fired...

VIESMANNInstallation instructionsfor heating engineers

Vitodens 333Type WS3A, 6.6 to 26.0 kWCompact gas fired condensing boilernatural gas and LPG version

VITODENS 333

5862 566 GB 3/2004 Dispose after installation

Please follow these safety instructions closely to prevent accidents andmaterial losses.

Safety instructions explained

! Important informationThis symbol warns against therisk of material losses andenvironmental pollution.

NoteDetails identified by the words "Note"contain additional information.

Safety regulations

Installation, initial start-up, inspection,maintenance and repairs must be car-ried out by a competent person(heating engineer/installation contrac-tor).Observe all current safety regulationsas defined by DIN, EN, DVGW, TRGI,TRF, VDE or all locally applicablestandards.

See also the "safety instructions" inthe "Vitotec Technical Guide" folder.Before working on the equipment/heating system, isolate the mainselectrical supply (e.g. by removing aseparate mains fuse or by means of amains electrical isolator) and safe-guard against unauthorised reconnec-tion.Close the main gas shut-off valve andsafeguard against unauthorisedreopening.Electrical assemblies provided on sitemust be type-approved.

Work on gas equipment

This must only be carried out by anapproved gas fitter.Observe all commissioning work spe-cified for gas installations to TRGI orTRF and all local regulations.

Safety instructions

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Preparing for installationProduct information .................................................................................... 4Preparations for boiler installation ............................................................... 5

InstallationInstalling the boiler and making all connections ........................................... 7Flue gas connection.................................................................................... 8Gas connection .......................................................................................... 8Checking anode connection ........................................................................ 9Opening the control unit housing ................................................................. 10Electrical connections................................................................................. 11& Routing connecting cables ....................................................................... 13Closing control unit housing and inserting user interface ............................. 14Front panel installation................................................................................ 15Commissioning and adjustments................................................................. 15

Index

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5862566GB

Vitodens 333, Type WS3A

Set up for operation with natural gas E.The natural gas E version can be converted to natural gas LL or LPG P using aconversion kit.

Product information

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On-site preparations when using a connection set (accessory), see theinstallation instructions of the connection set.

A Cold water G¾"B Heating flow G¾"C Gas connection G¾"D Heating return G¾"E DHW G¾"F DHW circulation G1"

G Drain outlet kit (accessory)H Cable arrangement areaK Wall clearance with connection

set (accessory)L Wall clearance with on-site con-

nection

Preparations for boiler installation

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1. Prepare the primary connections.Thoroughly flush the heating sys-tem.

NoteShould an on-site diaphragmexpansion vessel be required,install this into the heating return. Ifno connection set (accessory) isused, install the on-site fill tap intothe heating return.

2. Prepare the secondary connec-tions. Install the safety assembly(accessory or on-site provision) toDIN 1988 [or local regulations] intothe cold water supply line.

3. Equip the DHW circulation pipewith circulation pump, check valveand time switch.

4. Connect the condensate drain witha pipe vent to the public sewer.

5. Prepare the gas connectionaccording to TRGI or TRF or alllocal regulations.

6. Prepare the electrical connections.& Mains cable: NYM-J 3 x 1.5 mm2,fuse max. 16 A, 230 V~, 50 Hz.

& Accessory cables: NYM with therequired number of conductorsfor the external connections.

& All cables in area "H" shouldprotrude 2 000 mm from the wall.

Preparations for boiler installation (cont.)

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NoteConnect the condensate drain and drain lines from the safety valves with aslope and a pipe vent to the public sewer.

A Connection set (accessory)

Installing the boiler and making all connections

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Connect the balanced flue pipe. Flue gas system installationinstructions.

Gas connection

A Gas connection

Conversion to other gastypes:Conversion kit installationinstructions

Information regarding operationwith LPGWe recommend the installation of anexternal safety solenoid valve wheninstalling the boiler in rooms belowground level.

1. Carry out a leak test.

! Important informationExcessive test pressureleads to damage to the boi-ler and gas train.Max. test pressure150 mbar. If a higher pres-sure is required for leaktests, separate the boilerand the gas train from themains gas supply (undo fit-tings).

2. Purge the gas supply pipe.

Flue gas connection

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A Magnesium anode B Earth cable

1. Remove the flange lid cover. 2. Check whether the earth cable isconnected on the magnesiumanode.

Checking anode connection

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Opening the control unit housing

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Notes regarding the connection of accessoriesFor details of accessories, also observe the separate installation instruc-tions provided.

A Radio clock connection B Vitotrol 100 UTD (only for controlunits operating with a constanttemperature)

C Vitotrol 100 UTA (only for controlunits operating with a constanttemperature)

Electrical connections

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Plug 230 V~fÖ Power supply

& Never interchange cores "L1"and "N".

& Install an isolator in the mainssupply line which simulta-neously separates all non-earthed conductors from themains with at least 3 mm contactseparation.

& Max. fuse rating 16 A.lH & Mains supply - accessories

(230 V ~ 50 Hz). Where the boi-ler is installed in a bathroom orshower room, the mains supplyof accessories outside the wetarea must not be connected tothe control unit. The power sup-ply connection for accessoriescan be made immediately at thecontrol unit, if the boiler isinstalled outside damp areas.This connection is directly con-trolled with the system ON/OFFswitch (max. 3 A).

& Vitotrol 100 UTA& Vitotrol 100 UTD

Low voltage plug! Outside temperature sensor

(only for weather-compensatedmode)Installation& North or northwestern wall, 2to 2.5 m above ground level. Inmulti-storey buildings, in theupper half of the second floor

& Not above windows, doors orventilation outlets

& Not immediately below balconyor gutter

& Do not render over& Two core cable with a maxi-mum length of 35 m and across-section of 1.5 mm2

? Flow temperature sensor for lowloss header (accessories)

% DHW cylinder temperature sen-sor (fitted in the delivered condi-tion)

aVG KM BUS user (accessory)& Vitotrol 200 or 300 remote con-trol

& Vitocom 100& Extension kit for one heatingcircuit with mixer

& Vitosolic& External extension

Electrical connections (cont.)

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Routing connecting cables

! Important informationConnecting cables are damaged if they touch hot components.When routing and securing connecting cables on site, ensure that themaximum permissible cable temperatures are not exceeded.

A Low voltage connectionsB 230 V connectionsC Internal extension

D Main PCBE Communications module

Electrical connections (cont.)

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Closing control unit housing and inserting user interface

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Commissioning and adjustments

For commissioning and adjustment, see service instructions.

Front panel installation

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Viessmann LimitedHortonwood 30, Telford, TF1 7YP, GBTelephone: +44 1952 675000Fax: +44 1952 675040www.viessmann.co.uk

VIESMANNService instructionsfor heating engineers

Vitodens 333Type WS3A, 6.6 to 26.0 kWCompact gas fired condensing boilernatural gas and LPG version

See applicability on the last page

VITODENS 333

5692 548 GB 3/2004 Please keep safe

Please follow these safety instructions closely to prevent accidents andmaterial losses.

Safety instructions explained

DangerThis symbol warns against therisk of injury.

! Important informationThis symbol warns against therisk of material losses andenvironmental pollution.

NoteDetails identified by the words "Note"contain additional information.

Warranty

All warranty rights are void if theseservice instructions are not observed.

Target group

These service instructions are exclu-sively designed for qualified person-nel.Work on gas equipment must only becarried out by a registered gas fitter.Electrical work must only be carriedout by a qualified electrician.The system must be commissioned bythe system installer or a qualified per-son authorised by the installer.

Regulations

Observe the following during servicework:

& all legal instructions regarding theprevention of accidents,

& the TRGI, TRF and special regula-tions, e.g. those of the BDH,

& all legal instructions regardingenvironmental protection,

& the Code of Practice by relevanttrade associations and all local reg-ulations.

If you notice a smell of gas

DangerEscaping gas can cause explo-sions which may lead to ser-ious injury.& Do not smoke. Preventnaked flames and sparks.Never switch electrical lightsor equipment.

& Open windows and doors.& Close the gas shut-off valve.& Remove all personnel fromthe danger zone.

& Observe the safety regula-tions of your local gas sup-plier which can be found onthe gas meter.

& Notify your heating contrac-tor from outside the building.

Safety instructions

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Safety instructions

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If you smell flue gas

DangerFlue gas may lead to life-threa-tening poisoning.& Shut down the heating sys-tem.

& Ventilate the boiler room.& Close all doors leading to theliving space.

Repair work

It is not permitted to carry out repairson parts that fulfil a safety function.Use only original Viessmann spareparts, or equivalent parts that havebeen approved by Viessmann.

Service work on the heating system

& Isolate the system from mains sup-ply and check that is is no longer'live', e.g. by removing a separatefuse or by means of a mains electri-cal isolator.

& Safeguard the system againstunauthorised reconnection.

& When using gas as fuel, also closethe main gas shut-off valve andsafeguard against unauthorisedreopening.

Ancillary components, spare andwearing parts

! Important informationComponents which are nottested with the heating system,the installation of non-approved spare parts andunauthorised conversion maylead to damage to the heatingsystem, which may affect theirfunction and limit our warranty.For conversions or replace-ments, use only original partsfrom Viessmann or those spareparts which are approved byViessmann.

Safety instructions (cont.)

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Safety instructions5692548GB

Initial start-up, inspection, maintenanceSteps - initial start-up, inspection and maintenance ..................................... 5Further details regarding the individual steps .............................................. 7

CodingCode 1........................................................................................................ 39Code 2........................................................................................................ 41Resetting the coding to the as delivered condition ...................................... 61

Service scansService level summary................................................................................ 62Temperatures, boiler coding card and brief scans ....................................... 63Testing outputs (relay test) .......................................................................... 67Scanning operating conditions and sensors ................................................ 69

TroubleshootingCall up fault history of fault codes................................................................ 72Call up current fault codes .......................................................................... 72Checking and acknowledging faults ............................................................ 74Repairs ...................................................................................................... 84

Function descriptionConstant temperature control unit ............................................................... 95Weather-compensated control unit.............................................................. 97Internal extension H1.................................................................................. 99Extensions for external connections (accessory) ......................................... 100Control functions ........................................................................................ 103

DesignsConnection and wiring diagrams – internal connections .............................. 108Connection and wiring diagrams – external connections.............................. 110

Parts lists .................................................................................................. 112

Commissioning/service reports ............................................................... 120

Specification ............................................................................................. 126

CertificatesDeclaration of conformity ............................................................................ 127Manufacturer's certificate according to the 1st BImSchV [Germany]............. 128

Keyword index .......................................................................................... 129

Index

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Index

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For further instructions on individual steps, see pages indicated

Commissioning steps

Inspection steps

Maintenance steps Page

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• 1. Filling the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

• 2. Venting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

• 3. Venting the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

• 4. Filling the siphon with water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

• 5. Checking the electrical mains connection

• 6. Language selection (if required) - only for theweather-compensated control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

• • • 7. Pivot the control unit down to carry outcommissioning and maintenance work . . . . . . . . . . . . . . . . . . . . . . . . 10

• • • 8. Function sequence and possible faults . . . . . . . . . . . . . . . . . . . . . . . 10

• • 9. Checking the gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

• 10. Changing the gas type (see separate installationinstructions)

• • • 11. Checking static and supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

• • • 12. Checking the CO2 settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

• 13. Setting the max. output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

• • • 14. Check all connections on the primary and DHWside for leaks

• • • 15. Checking the burner (recording values on page120 of the commissioning report)

• 16. Checking the balanced flue system for soundness(annular gap check) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

• • 17. Removing the burner and checking the burnergasket (replace gasket every two years) . . . . . . . . . . . . . . . . . . . . . . 19

• • 18. Checking the burner gauze assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

• • 19. Checking and adjusting the ignition and ionisationelectrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Steps - initial start-up, inspection and maintenance

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Initial start-up, inspection, maintenance5692548GB

Commissioning steps

Inspection steps

Maintenance steps Page

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• • 20. Cleaning the combustion chamber/Cleaning theheating surfaces and installing the burner . . . . . . . . . . . . . . . . . 22

• • 21. Checking the condensate drain and cleaning thesiphon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

• • 22. Checking the neutralising system (if installed)

• 23. Testing anode earth current with an anode testdevice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

• 24. Cleaning the DHW cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

• 25. Checking and replacing the magnesium anode (ifrequired) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

• 26. Taking the DHW cylinder back into use . . . . . . . . . . . . . . . . . . . . . . . . 25

• • • 27. Checking the diaphragm expansion vessel andsystem pressure

• • • 28. Checking the function of all safety valves

• • • 29. Checking tightness of electrical connections

• • • 30. Checking all gas equipment for soundness atoperating pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

• • • 31. Checking the ionisation current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

• • • 32. Checking the external LPG safety valve (ifinstalled)

• 33. Matching the control unit to the heating system . . . . . . 27

• 34. Connecting the control unit to the LON system(only for weather-compensated control units) . . . . . . . . . . 32

• 35. Implementing a user check (in conjunction withthe LON system) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

• 36. Adjusting heating curves (only for weather-compensated control units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

• 37. Instructing the system user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

• 38. Scanning and resetting the maintenance display . . . . 37

Steps - initial start-up, inspection and maintenanc . . . (cont.)

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Initial start-up, inspection, maintenance

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Filling the heating system

1. Check the charge pressure of thediaphragm expansion vessel.

2. Close the gas shut-off valve.

3.

! Important informationUnsuitable fill waterincreases the level ofdeposits and corrosion andmay lead to boiler damage.& Thoroughly flush theentire heating system priorto filling with water.

& Only use fill water of pota-ble quality.

& Soften fill water harderthan 20 cdH (3.58 mmol/l).For suitable means ofwater softening, see theVitoset pricelist.

& An anti-freeze additivesuitable for heating sys-tems can be mixed withthe fill water.

Fill the heating system at the fillvalve in the heating return (on theconnection set or on site).(minimum system pressure >0.8 bar).

NoteThe diverter valve actuator will bein the central position, and the sys-tem will be completely filled, if thecontrol unit has not been switchedON before the system was filled.

4. If the control unit had already beenswitched ON before filling began:Start the control unit and in code 1,set coding address 2F:2.The diverter valve will then be in itscentral position.

NoteTo call up code 1 and for setting thecoding address, see page 39.Whilst filling is in progress, the dis-play shows bF (constant tempera-ture control unit) or Filling(weather-compensated controlunit).

Continue filling the system.

5. Close the boiler fill & drain valve.

6. Set coding address 2F:0.

Further details regarding the individual steps

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Venting the boiler

1. Close the shut-off valves on theheating water side.

2. Connect the drain hose on valve Awith a drain outlet.

3. Open valve A and fill valve in theheating return, and vent at mainspressure, until no sound of escap-ing air can be heard anymore.

4. Close valve A and fill valve in theheating return, and open the pri-mary shut-off valves.

Venting the heating system

1. Close the gas shut-off valve andstart the control unit.

2. Activate the venting program viacoding address 2F:1.

NoteTo call up code 1 and for setting thecoding address, see page 39.For function and sequence of theventing program, see page 104.Whilst venting is in progress, thedisplay shows EL (constant tem-perature control unit) or Venting(weather-compensated controlunit).

3. Check the system pressure.

Further details regarding the individual steps (cont.)

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Filling the siphon with water

1. Remove the retaining clip andsiphon A.

2. Fill the siphon with water.

3. Fit siphon A and secure with theretaining clip.

Language selection (if required) - only for the weather-com-pensated control units

1. Press c.

2. Select the required language withb.

3. Confirm with d.


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Pivot the control unit down to carry out commissioning andmaintenance work

1. Open flap A.

2. Release the side closures B andpivot control unit C forward.

3. Release the side screws and pivotcontrol unit C down with its retain-ing frame D.

Function sequence and possible faults

For further details regarding faults, see page 74.

Display screen RemedyControl unitissues a heatdemand

No Set value


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Yes

Fan starts

No

After approx.51 seconds

Check cables andplug-in connec-tionsFault

F9

Yes

Differential pres-sure sensorenables start(0.75 V acrossterminals X8.5and X8.6)

No

After approx.51 seconds

Check fan cablesand fan plug-inconnections,check fan

Fault

E6

Yes

Ignition No Fault Check the ignitionmodule (controlvoltage 230 Vacross plugs X2.1and X2.2)

F4

Yes

Gas combinationvalve opens

No Fault Check the gascombination valve(control voltage230 V), check thegas supply pres-sure

F4

Yes

Ionisation cur-rent builds(higher than5 µA) No

Fault Check electrodeadjustment andcheck the gaspipe for airlocks

Symbol A F4


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Yes

Operational bur-ner

Stops below setboiler tempera-ture and immedi-ately restartsagain

Check flue gassystem for sound-ness (flue gasrecirculation),check gas flowpressure

Checking the gas type

1. Enquire about the gas type andWobbe index (Wo) from your localmains gas or LPG supplier.

NoteIn the as delivered condition, Vito-dens 333 is set up for natural gasE.The boiler can be operated in theWobbe index range 12.0 to16.1 kWh/m3 (43.2 to 58.0 MJ/m3).

2. Compare the gas category (gastype) and gas group with the detailson the burner label.

3. If these details do not match thefuel provided, the burner must beconverted according to the detailsprovided by the mains gas or theLPG supplier.

See separate conversion kitinstallation instructions.

After conversion to& Natural gas LLThe boiler can be operated in theWobbe index range 10.0 to13.1 kWh/m3 (36.0 to 47.2 MJ/m3).

& LPG PThe boiler can be operated in theWobbe index range 21.4 to22.5 kWh/m3 (76.9 to 81.0 MJ/m3).

4. Set the gas type via codingaddress 1E at the control unit.

NoteTo call up code 1 and for setting thecoding address, see page 39.


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5. Record the gas type in the commis-sioning/service report on page120.

Checking static and supply pressure

DangerHigher CO emissions can lead to poisoning.Measure the CO value before and after any work on gas equipment toprevent any health hazards and to ensure the perfect operational condi-tion of the system.

Operation with LPGFlush the LPG tank twice during commissioning/replacement. Thoroughly ventthe tank and gas lines after flushing.

1. Close the gas shut-off valve.

2. Release the screw inside test nip-ple PE A on the gas combinationvalve, but do not remove, and con-nect the pressure gauge.

3. Open the gas shut-off valve.

4. Check the static pressure; it shouldbe a max. of 57.5 mbar. Record theactual value in the service report.

5. Start up boiler.

NoteDuring commissioning, the boilercan enter a fault state because ofairlocks in the gas pipe. Afterapprox. 5 seconds, press E toreset the burner.


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6. Check the supply (flow) pressure; itshould be& 20 mbar for natural gas,& 50 mbar for LPG.

NoteUse suitable test equipment with aresolution of at least 0.1 mbar tomeasure the supply pressure.

Record the actual value in the ser-vice report.Take the action shown in the table.

Supply (flow)pressure for nat-ural gas

Supply (flow)pressure forLPG

Remedy

below 17.4 mbar below 42.5 mbar Do not start up. Notify your mains gas orLPG supplier.

17.4 to 57.5 mbar 42.5 to57.5 mbar

Start up boiler.

in excess of57.5 mbar

in excess of57.5 mbar

Install a separate gas governor down-stream of the system and regulate thepressure to 20 mbar for natural gas, or50 mbar for LPG. Notify your mains gasor LPG supplier.

7. Shut down the boiler, close the gasshut-off valve, remove the pressuregauge, and close test nipple Awith the screw.

8. Open the gas shut-off valve andstart the boiler.

DangerGas escaping from the testnipple leads to a risk ofexplosion.Check test nipple A forsoundness.


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Checking the CO2 settings

Vitodens 333 is set up in the factory for natural gas E, and can be converted tonatural gas LL or LPG P using a conversion kit.During commissioning or maintenance, check the CO2 level at the boiler adap-tor.

NoteThe MatriX burner for Vitodens 333 is preset for the entire gas group. Therefore,the burner requires no further setting or adjustment.

Subject to the Wobbe index, the CO2 content fluctuates between& 6.6 to 10.0 % for natural gas E& 7.0 to 10.0 % for natural gas LL and& 8.5 to 10.5 % for LPG P.

Compare the actual CO2 value with the above CO2 value ranges for the indivi-dual gas groups (check the gas group with your mains gas or LPG supplier).If the actual CO2 value deviates by more than 1 % for natural gas or 0.5 % forLPG, proceed as follows:& Check whether the correct gas restrictor has been installed.& Check the balanced flue system for soundness, see page 18.


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1. Connect a flue gas analyser at theflue gas aperture A on the boileradaptor.

2. Open the gas shut-off valve, com-mission the boiler and create a heatdemand.

3. Select the lower rated output.

Constant temperature control unit:& Press both keys 9 and d simul-taneously until the display shows1.

Weather-compensated control unit:& Press both keys 9 and d simul-taneously until the display showsRelay test.

& With a/b in the display, selectBasic load.

4. Check the CO2 content. Should theactual value deviate by more than1 % from the above range, imple-ment steps from page 15 (possiblyreplace the burner).

5. Enter actual values into the servicereport.

6. Set the upper rated output.

Constant temperature control unit:& With a/b in the display, select2.

Weather-compensated control unit:& With a/b in the display, selectFull load.


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7. Check the CO2 content. Should theactual value deviate by more than1 % from the above range, imple-ment steps from page 15 (possiblyreplace the burner).

8. After testing, press d.

9. Enter actual values into the servicereport.

Setting the max. output

NoteThe max. output can be limited for heating operation. You can limit the outputvia the modulation range. The control pressure acts as standard value for set-ting the required output.

1. Start up boiler.

2. Press both K and F simulta-neously until 100 flashes on thedisplay, (equals 100 % of the ratedoutput) and A appears. Onweather-compensated controlunits, the display additionallyshows Max. output.

3. With a/b select the requiredvalue in % of rated output as max.output.

4. Confirm the set value with d.

5. Record the settings for max. outputon the additional type plateincluded with the technical docu-mentation. Affix the type plate nextto the original type plate on top ofthe boiler.


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Checking the balanced flue system for soundness (annulargap check)

A Combustion air aperture

For balanced flue systems testedtogether with the gas fired wallmounted boiler, some Federal States(e.g. Northrhein-Westphalia) waivethe requirement for a soundness test(overpressure test) during commis-sioning by the flue gas inspector.For such cases we recommend thatyour heating contractor carries out asimple soundness test during theinitial start-up of your system. Forthis, it would be sufficient to check theCO2 concentration in the combustionair at the annular gap in the balancedflue pipe.The flue pipe is deemed to be sound,if the CO2 concentration of the com-bustion air is no higher than 0.2 % orthe O2 concentration is at least20.6 %.If actual CO2 values are higher or O2

values are lower, carry out a pressuretest on the flue pipe at a static pres-sure of 200 Pa.


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5692548GB

Removing the burner and checking the burner gasket(replace gasket every two years)

1. Switch OFF the control unit ON/OFF switch and the mains electri-cal supply.

2. Close the gas shut-off valve andsafeguard against reopening.

3. Pull electrical cables off fan motorA, differential pressure sensorB, gas valve C, ionisation elec-trode D, ignition unit E and earthF.

4. Release gas connection pipe Gfixing screws and fittings.

5. Release four nuts H and removethe burner.

! Important informationPrevent damage to the wiremesh.Never rest the burner on thegauze assembly.

6. Check the burner gasket K fordamage.Generally, replace the burner gas-ket every two years.


19


Checking the burner gauze assembly

Replace the burner gauze assembly ifthe wire mesh is damaged.

1. Remove electrodes A.

2. Remove thermal insulation ring B.

3. Release the six Torx screws Cand remove the burner gauzeassembly D.

4. Remove the old gauze assemblygasket E.

5. Insert a new burner gauze assem-bly with a new gasket, and securewith six Torx screws.

NoteTorque: 3.5 Nm

6. Refit a new thermal insulationring B.


20


5692548GB

Checking and adjusting the ignition and ionisation electro-des

A Ignition electrodes B Ionisation electrode

1. Check the electrodes for wear andcontamination.

2. Clean the electrodes with a smallbrush (not with a wire brush) oremery paper.

! Important informationWire meshdo not damage.

3. Check all clearances. If the gapsare not as specified or the electro-des are damaged, replace andalign the electrodes together withnew gaskets A. Tighten the elec-trode fixing screws with 2 Nm.


21


Cleaning the combustion chamber/Cleaning the heating sur-faces and installing the burner

1. If required, clean combustionchamber and heating surfaces Awith a brush or flush with water.

! Important informationScratches on parts whichare in contact with fluegases, can lead to corrosion.Only use plastic brushesand NOT wire brushes.

Apply a solvent-/potassium-freecleaning agent if residues remain:& Remove soot deposits with alka-line cleaning agents with addi-tional surfactants (e.g. Fauch600).

& Remove coatings and surfacediscolouration (yellow-brown)with slightly acidic, chloride-freecleaning agents based on phos-phoric acid (e.g. Antox 75 E).

& Thoroughly flush with water.

NoteFauch 600 and Antox 75 E are sup-plied byHebro Chemie GmbHRostocker Straße 40D 41199 Mönchengladbachc: Intec Bassersdorf AGGrindelstrasse 12PostfachCH-8303 Bassersdorf

2. Install the burner and torque nutsdiagonally with 4 Nm.

3. Secure the gas supply pipe with anew gasket.


22


5692548GB

4. Check the gas connections forsoundness.

DangerEscaping gas leads to a riskof explosion.Check all fittings for sound-ness.

5. Connect the electrical cables/leadsto each corresponding component.

Checking the condensate drain and cleaning the siphon

1. Check at siphon A, that the con-densate can freely drain.

2. Remove the retaining clip and thesiphon.

3. Clean the siphon.

4. Fit the siphon and secure with theretaining clip.

Testing anode earth current with an anode test device

NoteWe recommend that the magnesium anode function is checked annually. Thisfunction check can be made without interrupting operation, by measuring theearth current with an anode test device.


23


1. Remove cover A.

2. Pull earth cable B from connectingtab C.

3. Connect the test equipment (up to 5mA) in series between connectingtab C and earth cable B.& The anode is OK if the indicatedcurrent is >0.3 mA.

& Visually inspect the anode, if thecurrent measures < 0.3 mA or ifthere is no current at all (seepage).

Cleaning the DHW cylinder

NoteDIN 1988 requires a visual inspection and (if necessary) cleaning evey twoyears after the cylinder has been taken into use and thereafter according torequirements.

1. Drain the DHW cylinder.

2. Remove flange lid A.

3. Disconnect the DHW cylinder fromthe pipework to prevent cleaningagents and contaminants enteringthe pipe system.

4. Remove loose deposits with a highpressure cleaner.

! Important informationFor cleaning the inside, onlyuse plastic cleaning utensils.


24


5692548GB

5. Remove hard deposits that cannotbe removed by a high pressurecleaner, with a chemical cleaningagent.

! Important informationNever use hydrochloriccleaning agents.

6. Thoroughly flush the DHW cylinderafter cleaning.

Checking and replacing the magnesium anode (if required)

Check the magnesium anode. Werecommend you change the magne-sium anode if it has been reduceddown to 10 to 15mm Ø.

Taking the DHW cylinder back into use

1. Reconnect the DHW cylinder to thepipework.

2. Insert new gasket A underneaththe flange lid B.

3. Fit flange lid B and tighten thescrews with a maximum torque of25 Nm.

4. Push earth cable C onto connect-ing tab D.

5. Fill the DHW cylinder with potablewater.


25


Checking all gas equipment for soundness at operating pres-sure

DangerEscaping gas leads to a risk ofexplosion.Check gas equipment forsoundness.

Checking the ionisation current

A Adaptor line (available as acces-sory)

1. Pull the line off and connect testequipment (adaptor line availableas accessory).

2. Set the upper rated output.

Constant temperature control unit:& Press K and d simultaneouslyfor at least 2 seconds.

& With a/b in the display, select2.

Weather-compensated control unit:& Press K and d simultaneouslyfor at least 2 seconds.

& With a/b in the display, selectFull load.

NoteThe minimum ionisation currentshould be at least 4 µA as soon asthe flame is established (approx. 2-3 seconds after opening the gascombination valve).

3. If the ionisation current is < 4 µA& Check the electrode gap, seepage 21.

& Check the control unit power sup-ply.


26


5692548GB

4. After testing, press d.

5. Record the actual value in the ser-vice report.

Matching the control unit to the heating system

NoteThe control unit must be matched to the system equipment. Various systemcomponents are automatically recognised by the control unit, and codes areautomatically set.& For selection of an appropriate design, see the following diagrams.& For coding steps, see page 39.

System design 1

With one heating circuit without mixer A1

! Outside temperature sensor (onlyfor weather-compensated controlunits)or

lH Vitotrol 100 (only for constanttemperature control units)


27


Required coding AddressOperation with natural gas (as delivered condition)or

1E:0

Operation with LPG 1E:1

System design 2

With one heating circuit with mixer M2 and low loss header

! Outside temperature sensor? Flow temperature sensorsÖ Heating circuit pumplH Mains supply (extension kit)aVG KM BUS

A Low loss headerB Extension kit for one heating cir-

cuit with mixerC Maximum temperature controller

(underfloor heating)

Required coding AddressOne heating circuit with mixer and DHW cylinder 00:4Operation with natural gas (as delivered condition)or

1E:0


28


5692548GB

Required coding AddressOperation with LPG 1E:1

System design 3

With one heating circuit without mixer A1 and one heating circuit withmixer M2

NoteThe volume flow of the heating circuit without mixer must be at least 30 %greater than the volume flow of the heating circuit with mixer.


A Maximum temperature controller(underfloor heating)

B Extension kit for one heating cir-cuit with mixer


1E:0


29


Required coding AddressOperation with LPG 1E:1

System design 4

With one heating circuit without mixer A1 and one heating circuit withmixer M2 with system separation


A Extension kit for one heating cir-cuit with mixer

B Maximum temperature controller(underfloor heating)

C Heat exchanger for systemseparation


1E:0



30


5692548GB

System design 5

With one heating circuit with mixer M2 (with extension kit), one heating cir-cuit with mixer (with Vitotronic 050) and low loss header

! Outside temperature sensor? Flow temperature sensorsÖ Heating circuit pumplH Mains supply (extension kit)aVG KM BUSA Low loss header

B Extension kit for one heating cir-cuit with mixer

C Vitotronic 050D Maximum temperature controller

(underfloor heating)

Required coding AddressOne heating circuit with mixer and DHW cylinder 00:4Operation with natural gas (as delivered condition)or

1E:0



31


Connecting the control unit to the LON system (only forweather-compensated control units)

The LON communication module (accessory) must be plugged in.

Installation instructionsLON communication module

NoteData transfer via the LON system can take 2 to 3 minutes.

Setting up LON user numbers

Adjust the user number via codingaddress 77 (see below).

In a LON system, the same numbercannot be allocated twice.

Updating the LON user list.

Only possible, if all users are connected, and the control unit is encoded as faultmanager (code 79:1).

1. Press L and d simultaneouslyfor approx. 2 seconds. User checkhas been initiated (see page 33).

2. Press e. The user list is updatedafter approx. 2 minutes. Usercheck completed.

Single boiler system with Vitotronic 050 and Vitocom 300

Boiler controlunit

Vitotronic 050 Vitotronic 050 Vitocom

User no. 1Code 77: 1

User no. 10Code 77: 10

User no. 11Set code 77: 11

User no. 99

Control unit isfault manager *1Code 79: 1

Control unit is notfault manager *1Code 79: 0

Control unit is notfault manager *1Code 79: 0

Control unit isfault manager


32


5692548GB

*1In each heating system, only one Vitotronic may be encoded as fault manager.

Boiler controlunit

Vitotronic 050 Vitotronic 050 Vitocom

Sent time via LONCode 7b: 1

Time received viaLONSet code 81: 3

Time received viaLONSet code 81: 3

Time receivedvia LON

Transmit outsidetemperature viaLONSet code 97: 2

Outside tempera-ture is received viaLONSet code 97: 1

Outside tempera-ture is received viaLONSet code 97: 1

—

Implementing a user check (in conjunction with the LON sys-tem)

The communication with the system devices connected to the fault manager istested with a user check.Preconditions:& The control unit must be encoded as fault manager (code 79:1).& The LON user number must be encoded in all control units (see page 32).& The fault manager LON user list must be up to date (see page 32).

A Consecutive list numberB User number

1. Press L and d simultaneouslyfor approx. 2 seconds. User checkinitiated.

2. Select the required user with aand b.

3. Activate checking with d.Check flashes until its completion.The display and all key illumina-tions of the selected user flash forapprox. 60 seconds.& Check OK flashes during com-munication between bothdevices.

& Check not OK flashes if there isno communication between bothdevices. Check LON connection.

4. For checking further users, proceedas for items 2 and 3.


33


5. Press L and d simultaneouslyfor approx. 1 second. User checkcompleted.

Adjusting heating curves (only for weather-compensatedcontrol units)

The heating curves illustrate the rela-tionship between the outside tem-perature and the boiler water or theflow temperature. To put it simply: Thelower the outside temperature, thehigher the boiler water or flow tem-perature. The room temperature,again, depends on the boiler water orthe flow temperature.

Settings in the delivered condition:& Slope = 1.4& Level = 0

Generally, the slope of the heatingcurve lies& in the range of A for underfloorheating systems,

& in the range of B for low tempera-ture heating systems (according tothe Energy Savings Order [Ger-many]).


34


5692548GB

Changing slope and level

A Changing the slopeB Changing the level

1. Modify the slope in code 1 with cod-ing address d3 (see page 39).Adjustable value 2 to 35 (equalsslope 0.2 to 3.5).

2. Modify the slope in code 1 with cod-ing address d4 (see page 39).Value adjustable from –13 to +40 K.

Adjusting the set room temperature

Standard room temperature:

1. For two heating circuits – selectheating circuit:& Press a.1r flashes on the display.

& Select heating circuit A1 (heatingcircuit without mixer):Press d.

& Select heating circuit M2 (heatingcircuit with mixer):– Press a.– 2r flashes on the display.– Press d.


35


Example 1: Modifying the standardroom temperature from 20 °C to 26 °C

A Boiler water or flow temperature in°C

B Outside temperature in °CC Set room temperature in °CD Heating circuit pump OFFE Heating circuit pump ON

2. Adjust the set day temperature withrotary selector ts.The value will be automaticallyadopted after approx. 2 seconds.Accordingly, the heating curve isadjusted along set room tempera-ture axis C, which results in modi-fied start/shutdown characteristicsof the heating circuit pumps, if theheating circuit pump logic is acti-vated.

Reduced room temperature:





36


5692548GB

Example 2: Modifying the reducedroom temperature from 5 °C to 14 °C

A Boiler water or flow temperaturein °C

B Outside temperature in °CC Set room temperature in °CD Heating circuit pump OFFE Heating circuit pump ON

2. Call up the set night temperaturewith E.

3. Change this value with a and b.

4. Confirm the set value with d.

Instructing the system user

The system installer must hand the operating instructions to the system userand instruct them in the operation of the system.

Scanning and resetting the maintenance display

The red fault indicator flashes when the limits set via coding address 21 and 23have been reached. As regards the operating interface display:& for constant temperature control units, the hours run (subject to setting) or thegiven time interval and the clock symbol will flash

& for weather-compensated control units "Maintenance" flashes.

NoteSet code 24:1 and then code 24:0, if maintenance is implemented before main-tenance is displayed; the set maintenance parameters for hours run and intervalare then reset to 0.


37


1. Press c.Maintenance scan is activated.

2. Scan maintenance messageswith a or b.

3. Press d, for weather-compen-sated control units also confirm thedisplay "Acknowledge: Yes"with d."Maintenance" is cancelled fromthe display, and the red fault indica-tor continues to flash.

NoteAn acknowledged maintenancemessage can be redisplayed bypressing d (approx. 3 seconds).

After maintenance has been carriedout

1. Reset code 24:1 to 24:0.The red fault indicator is extin-guished.

NoteIf coding address 24 is not reset, anew "Maintenance" message willbe displayed on Monday at07:00 h.

2. If required:& Press c.& Reset burner hours run, burnerstarts and consumption (seepage 69).

& Press c.


38


5692548GB

Call up code 1

1. Press K and L simultaneouslyfor approx. 2 seconds.

2. Select the required coding addresswith a or b; the address flashes.Confirm with d; the value flashes.

NoteCodes are displayed in plain texton weather-compensated controlunits. Codes, which are not rele-vant because of the equipmentlevel of your heating system orbecause of settings of other codes,will not be displayed.

3. Change this value with a and b;confirm with d. The display brieflyshows "adopted", then the addressflashes again. Select additionaladdresses (if required) with aor b.

4. Press K and L simultaneouslyfor approx. 1 second.Coding is terminated.

Summary

Codes

Coding inthe asdeliveredconditionAddress:value

Function mode CodingchangeAddress:value

Possible change

System design00 :2 System design 1:

1 heating circuit withoutmixer A1, with DHWheating

00 :4 System design 2, 5:1 mixer circuit M2, withDHW heating

00 :6 System design 3, 4:1 heating circuit withoutmixer A1, 1 mixer circuitM2 with DHW heating

Max. boiler temp.06:... Maximum limit of the

boiler water tempera-ture, defaulted by theboiler coding card

06:20to06:127

Maximum limit of the boi-ler water temperaturewithin the rangesdefaulted by the boiler

Code 1

39

Coding5692548GB



Possible change

Gas type1E:0 Operation with natural

gas1E:1 Operation with LPG

Venting/filling2F:0 Ventilation program/fill-

ing program inactive2F:1 Venting program active2F:2 Filling program active

User no.77:1 LON user number 77:2

to77:99

LON user number, adjus-table from 1 to 99:1-4 = boiler5 = cascade10 - ... = Vitotronic 05099 = Vitocom

NoteAllocate each numberonly once.

Summer econ. A1A5:5 *1With heating circuit

pump logic functionA5:0 Without heating circuit

pump logic functionSummer econ. M2A5:5 *1With heating circuit

pump logic functionA5:0 Without heating circuit

pump logic functionMin. flow temp. A1C5:20 Electronic minimum

flow temperature limit20 °C

C5:1toC5:127

Minimum limit adjustablefrom 1 to 127 °C

Min. flow temp. M2C5:20 Electronic minimum

flow temperature limit20 °C

C5:1toC5:127

Minimum limit adjustablefrom 1 to 127 °C

Max. flow temp. A1C6:75 *1Electronic maximum

flow temperature limit at75 °C

C6:1toC6:127

Maximum limit adjustablefrom 1 to 127 °C

Code 1 (cont.)

40

Coding

5692548GB

*1Only for weather-compensated control unit.



Possible change

Max. flow. temp. M2C6:75 *1Electronic maximum

flow temperature limit at75 °C

C6:1toC6:127


Slope A1d3:14 *1Heating curve slope =

1.4d3:2tod3:35

Heating curve slopeadjustable from 0.2 to 3.5(see page 34)

Slope M2d3:14 *1Heating curve slope =

1.4d3:2tod3:35


Level A1d4:0 *1Heating curve level =

0d4:–13tod4:40

Heating curve leveladjustable from –13 to 40(see page 34)

Level M2d4:0 *1Heating curve level =

0d4:–13tod4:40


Code 2

Calling up code 2

1. Press L and G simultaneouslyfor approx. 2 seconds; confirmwith d.

2. Select the required coding addresswith a or b; the address flashes.Confirm with d; the value flashes.

3. Change this value with a and b;confirm with d. The display brieflyshows "adopted", then the addressflashes again. Select additionaladdresses (if required) with aor b.

Code 1 (cont.)

41

Coding5692548GB


4. Press L and G simultaneouslyfor approx. 1 second.Coding is terminated.

Overall summary

The coding addresses are grouped in accordance with the following functionranges. The respective function range is displayed.Scroll through the ranges in the following sequence with a or b.

Function range Coding addressesSystem design 00Boiler/burner 06 to 54DHW 56 to 73General 76 to 9FBoiler circuit (heating circuit A1 withoutmixer)

A0 to F7

Mixer circuit (heating circuit M2 with mixer) A0 to F7

NoteCodes, which are not relevant because of the equipment level of your heatingsystem or because of settings of other codes, will not be displayed.For heating systems with one heating circuit without mixer and one heating cir-cuit with mixer, initially the possible coding addresses A0 to F7 are scrolled forthe heating circuit without mixer A1, then those for the heating circuit with mixerM2.

Code 2 (cont.)

42

Coding

5692548GB

Codes



Possible change

System design00 :2 System design 1:

1 heating circuit withoutmixer A1, with DHWheating

00 :4 System design 2, 5:1 mixer circuit M2, withDHW heating

00 :6 System design 3, 4:1 heating circuit withoutmixer A1, 1 mixer circuitM2 with DHW heating

Boiler/burner06:... Maximum limit of the

boiler water tempera-ture, defaulted by theboiler coding card

06:20to06:127

Maximum limit of the boi-ler water temperaturewithin the rangesdefaulted by the boiler

1E:0 Operation with naturalgas

1E:1 Operation with LPG

21:0 No maintenance indica-tionBurner

21:1to21:100

The number of hours runbefore the burner shouldbe serviced is adjustablefrom 100 to 10000 hours(each step represents100 hours)

23:0 No time interval for bur-ner maintenance

23:1to23:24

Time interval adjustablefrom 1 to 24 months

24:0 No "Maintenance" dis-play

24:1 "Maintenance" display(the address is automati-cally set and must bemanually reset aftermaintenance has beencompleted)

Code 2 (cont.)

43

Coding5692548GB



Possible change

25:0 *1No recognition of out-side temperature sen-sor or remotemonitoring (only in i)

25:1 Recognition of outsidetemperature sensor andfault monitoring

28:0 No burner interval igni-tion

28:1 The burner is forced ONonce every 24 hours

2E:0 Without external exten-sion

2E:1 Including external exten-sion (automatical adjust-ment on connection)

2F:0 Ventilation program/fill-ing program inactive

2F:1 Venting program active2F:2 Filling program active

30:1 Internal variable speedcirculation pump (auto-matic adjustment)

30:0 Internal circulation pumpwithout variable speed(e.g. temporarily for ser-vice)

31:65 Set speed of the inter-nal circulation pumpwhen operated as boilercircuit pump 65 %,defaulted by the boilercoding card

31:0to31:100

Set speed adjustablefrom 0 to 100 %

32:0 Influence signal Exter-nal lockout on circula-tion pumps: All pumpsare controlled

32:1to32:15

Influence signal Externallockout on circulationpumps: see the followingtable

Coding Internalcircula-tion pump

Heating cir-cuit pumpHeating cir-cuit withoutmixer

Heating circuitpumpHeating circuitwith mixer

Cylinder loadingpump

0 Controlfunct.

Control funct. Control funct. Control funct.

1 Controlfunct.

Control funct. Control funct. OFF

Code 2 (cont.)

44

Coding

5692548GB

*1Only for constant temperature control units.

Coding Internalcircula-tion pump


Heating circuitpumpHeating circuitwith mixer

Cylinder loadingpump

2 Controlfunct.

Control funct. OFF Control funct.

3 Controlfunct.

Control funct. OFF OFF

4 Controlfunct.

OFF Control funct. Control funct.

5 Controlfunct.

OFF Control funct. OFF

6 Controlfunct.

OFF OFF Control funct.

7 Controlfunct.

OFF OFF OFF

8 OFF Control funct. Control funct. Control funct.9 OFF Control funct. Control funct. OFF10 OFF Control funct. OFF Control funct.11 OFF Control funct. OFF OFF12 OFF OFF Control funct. Control funct.13 OFF OFF Control funct. OFF14 OFF OFF OFF Control funct.15 OFF OFF OFF OFF



Possible change

Boiler/burner34:0 Influence signal Exter-

nal demand on circula-tion pumps: All pumpsare controlled

34:1to34:23

Influence signal Externaldemand on circulationpumps: see the followingtable

Code 2 (cont.)

45

Coding5692548GB

Coding Internalcirculationpump


Heating cir-cuit pumpHeating cir-cuit withmixer

Cylinder loading pump

0 Controlfunct.

Controlfunct.

Control funct. Control funct.

1 Controlfunct.

Controlfunct.

Control funct. OFF

2 Controlfunct.

Controlfunct.

OFF Control funct.

3 Controlfunct.

Controlfunct.

OFF OFF

4 Controlfunct.

OFF Control funct. Control funct.

5 Controlfunct.

OFF Control funct. OFF

6 Controlfunct.

OFF OFF Control funct.

7 Controlfunct.

OFF OFF OFF

8 OFF Controlfunct.

Control funct. Control funct.

9 OFF Controlfunct.

Control funct. OFF

10 OFF Controlfunct.

OFF Control funct.

11 OFF Controlfunct.

OFF OFF

12 OFF OFF Control funct. Control funct.13 OFF OFF Control funct. OFF14 OFF OFF OFF Control funct.15 OFF OFF OFF OFF16 ON Control

funct.Control funct. Control funct.

17 ON Controlfunct.

Control funct. OFF

18 ON Controlfunct.

OFF Control funct.

19 ON Controlfunct.

OFF OFF

20 ON OFF Control funct. Control funct.

Code 2 (cont.)

46

Coding

5692548GB

Coding Internalcirculationpump


Heating cir-cuit pumpHeating cir-cuit withmixer

Cylinder loading pump

21 ON OFF Control funct. OFF22 ON OFF OFF Control funct.23 ON OFF OFF OFF



Possible change

Boiler/burner52:0 Without flow tempera-

ture sensor for low lossheader

52:1 With flow temperaturesensor for low lossheader (automatic adjust-ment upon recognition)

53:3 Function connection sKof the internal exten-sion: Cylinder loadingpump (fixed speed)

54:0 Without solar controlunit

54:1 With Vitosolic 10054:2 With Vitosolic 200 (auto-

matical adjustment onrecognition)

Domestic hot water56:0 DHW temperature

adjustable from 10 to60 °C

56:1 DHW temperature adjus-table from 10 to above60 °C (subject to boilercoding card)Observe the max. per-missible DHW tempera-ture

58:0 Without auxiliary func-tion for DHW loading

58:1to58:95

Input of a 2nd set DHWvalue; adjustable from 1to 95 °C (observe codingaddress 56)

Code 2 (cont.)

47

Coding5692548GB



Possible change

59:0 DHW cylinder loading:Starting point -2.5 KStopping point +2.5 K

59:1to59:10

Starting point adjustablefrom 1 to 10 K below theset value

60:10 During DHW loading,the boiler water tem-perature is a maximumof 20 K higher than theset DHW temperature

60:5to60:25

The difference betweenthe boiler water tempera-ture and the set DHWtemperature is adjustablefrom 10 to 50 K

62:2 Circulation pump with 2minutes run-on time

62:0 Circulation pump withoutrun-on

62:1to62:15

Run-on time adjustablefrom 1 to 15 minutes

63:0 *1Without auxiliary func-tion for DHW loading

63:1 Additional function: 1 xdaily

63:2to63:14

Every 2 to every 14 days

63:15 2 x daily65:... Information regarding

the type of divertervalve (not adjustable)

65:0 Without diverter valve65:1 Diverter valve by Viess-

mann65:2 Diverter valve by Wilo65:3 Diverter valve by Grund-

fos6C:100 Set speed internal DHW

loading pump 100 %6C:0to6C:100

Set speed adjustablefrom 0 to 100 %

6F:100 Max. output duringDHW loading 100 %,defaulted by the boilercoding card

6F:0to6F:100

Max. output during DHWloading adjustable from 0to 100 %

Code 2 (cont.)

48

Coding

5692548GB




Possible change

71:0 *1DHW circulationpump: According toDHW time program: ON(Vitotrol 300 enablesseparate switchingtimes)

71:1 OFF during DHW loadingto set value 1

71:2 ON during DHW loadingto set value 1

72:0 *1DHW circulationpump: According toDHW time program: ON

72:1 OFF during DHW loadingto second set value

72:2 ON during DHW loadingto second set value

73:0 *1DHW circulationpump: According toDHW time program: ON

73:1to73:6

During the time program1x/h ON for 5 minutesup to 6x/h ON for 5 min-utes

73:7 Constantly ONGeneral76:0 *1Without LON commu-

nication module76:1 With LON communication

module; automatic recog-nition

77 :1 *1LON user number 77 :2to77 :99

LON user number, adjus-table from 1 to 99:1-4 = boiler5 = cascade10 - ... = Vitotronic 05099 = Vitocom

NoteAllocate each numberonly once.

79:1 *1Control unit is faultmanager

79:0 Control unit is not faultmanager

7b:1 *1Send time to LON 7b:0 Do not send time to LON

Code 2 (cont.)

49

Coding5692548GB




Possible change

7F:1 *1Detached house 7F:0 Multi-occupancy houseSeparate adjustment forholiday program and timeprogram for DHW load-ing, as option

80:1 With 5 seconds timedelay for fault message;message will be issued,if a fault persists for atleast 5 seconds

80:0 Without time delay80:2to80:199

Time delay adjustablefrom 10 to 995; 1 step =5 s

81:1 Automatic changebetween summer andwinter

81:0 Manual summer/winterchangeover

81:2 The application of theradio clock module will berecognised automatically

81:3 Accept time via LON88 :0 Temperature display in

°Celsius88 :1 Temperature display in

Fahrenheit8A:175 Do not adjust90:128 Time constant for calcu-

lating adjusted outsidetemperature 21.3 h

90:0to90:199

Quick (low values) orslow (high values) match-ing of flow temperaturesubject to set value if theoutside temperaturechanges;1 step = 10 min.

Code 2 (cont.)

50

Coding

5692548GB




Possible change

91:0 *1No external operatingmode changeover viaexternal extension

91:1 External heating programchangeover applies toheating circuit withoutmixer

91:2 External heating programchangeover applies toheating circuit with mixer

91:3 External heating programchangeover applies toheating circuit withoutmixer and heating circuitwith mixer

95:0 Without Vitocom 100communication inter-face

95:1 With Vitocom 100 com-munication interface;automatic recognition

97:0 *1The outside tempera-ture of the sensor con-nected to the controlunit is utilised internally

97:1 Outside temperature isadopted by the LON BUS

97:2 The outside temperatureof the sensor connectedto the control unit will beutilised internally andtransmitted via LON BUSto any connected Vitotro-nic 050.

98:1 Viessmann systemnumbers (in conjunctionwith monitoring of sev-eral systems via Vito-com 300)

98:1to98:5

System number adjusta-ble from 1 to 5

9b:0 No minimum set boilerwater temperature incase of externaldemand

9b:1to9b:127

Set temperature adjusta-ble from 1 to 127 °C

Code 2 (cont.)

51

Coding5692548GB




Possible change

9C:20 *1Monitoring LON usersWhen there is noresponse from a user,values defaulted insidethe control unit continueto be used for a further20 minutes. Only thenwill a fault message betriggered.

9C:0 No monitoring9C:5to9C:60

Time adjustable from 5 to60 minutes

9F:8 *1Differential tempera-ture 8 K; only in con-junction with a mixercircuit

9F:0to9F:40

Differential temperatureadjustable from 0 to 40 K

Boiler circuit, mixer circuitA0:0 *1Without remote con-

trolA0:1 With Vitotrol 200 (auto-

matic recognition)A0:2 With Vitotrol 300 (auto-

matic recognition)

Code 2 (cont.)

52

Coding

5692548GB




Possible change

A3:2 Outside temperaturebelow 1 °C: Heating cir-cuit pump ONOutside temperatureabove 3 °C: Heating cir-cuit pump OFF

NoteWhen selecting a valuebelow 1 °C there will bea risk of pipes outsidethe thermal insulationenvelope of the housefreezing-up. Thestandby mode, in parti-cular, should beobserved, e.g. duringholidays.

A3:-9toA3:15

Heating circuit pump ON/OFF (see the followingtable)

Parameters Heating circuit pumpAddress A3:... ON at OFF at-9 -10 °C -8 °C-8 -9 °C -7 °C-7 -8 °C -6 °C-6 -7 °C -5 °C-5 -6 °C -4 °C-4 -5 °C -3 °C-3 -4 °C -2 °C-2 -3 °C -1 °C-1 -2 °C 0 °C0 -1 °C 1 °C1 0 °C 2 °C2to

1 °Cto

3 °C

15 14 °C 16 °C

Code 2 (cont.)

53

Coding5692548GB



Possible change

Boiler circuit, mixer circuitA4:0 *1With frost protection A4:1 No frost protection,

adjustment only possibleif code "A3 : -9" isselected.

NoteWhen selecting a valuebelow 1 °C there will be arisk of pipes outside thethermal insulation envel-ope of the house freez-ing-up. The standbymode, in particular,should be observed, e.g.during holidays.

A5:5 *1With heating circuitpump logic function(economy circuit): Heat-ing circuit pump OFF, ifthe outside temperature(AT) is 1 K higher thanthe set room tempera-ture (RTSet )AT > RTSet + 1 K

A5:0 Without heating circuitpump logic function

A5:1toA5:15

With heating circuit pumplogic function: Heatingcircuit pump OFF, if (seethe following table)

Parameter addressA5:...

With heating circuit pump logic function: Heatingcircuit pump OFF, if

1 AT > RTSet + 5 K2 AT > RTSet + 4 K3 AT > RTSet + 3 K4 AT > RTSet + 2 K5 AT > RTSet + 1 K6 AT > RTSet

Code 2 (cont.)

54

Coding

5692548GB


Parameter addressA5:...

With heating circuit pump logic function: Heatingcircuit pump OFF, if

7to

AT > RTSet - 1 K

15 AT > RTSet - 9 K



Possible change

Boiler circuit, mixer circuitA6:36 *1Extended economy

circuit inactiveA6:5toA6:35

Extended economy cir-cuit active, i.e. the burnerand heating circuit pumpwill be switched OFF, andthe mixer will be closed ata variable value, which isadjustable between 5 and35 ºC plus 1 ºC. Thisvalue is based on theadjusted outside tem-perature, comprising theactual outside tempera-ture and a time constant,which takes the coolingdown of an averagebuilding into considera-tion.

Code 2 (cont.)

55

Coding5692548GB




Possible change

A7:0 *1Without mixer econ-omy function

A7:1 With mixer economyfunction (extended heat-ing circuit pump logic):Heating circuit pump alsoOFF, if the mixer wasclosed for longer than20 minutes. Heatingpump ON,& if the mixer changes tocontrol modeor

& after cylinder loading(for 20 minutes)or

& if there is a risk of frostA8:1 *1Heating circuit M2

(mixer circuit) creates ademand for the internalcirculation pump

A8:0 Heating circuit M2 (mixercircuit) creates nodemand for the internalcirculation pump

A9:7 *1With pump idle per-iod: Heating circuitpump OFF in case ofset value modification(by changing the oper-ating mode or changingthe set room tempera-ture)

A9:0 *1Without pump idle per-iod

A9:1toA9:15

With pump idle time,adjustable from 1 to 15

Code 2 (cont.)

56

Coding

5692548GB




Possible change

b0:0 *1With remote control:Heating mode/reducedmode: Weather-com-pensated*2

b0:1 Heating mode: Weather-compensatedReduced mode: Withroom temperature hook-up

b0:2 Heating mode: With roomtemperature hook-upReduced mode: Weather-compensated

b0:3 Heating mode/reducedmode: With room tem-perature hook-up

b2:8 With remote control unitand for the heating cir-cuit, heating with roomtemperature hook-upmust be encoded:Room influence factor8*2

b2:0 Without room influenceb2:1tob2:64

Room influence factoradjustable from 1 to 64

b5:0 *1With remote control:Without room tempera-ture-dependent heatingcircuit pump logic func-tion *2

b5:1tob5:8

Heating circuit pumplogic function - see thefollowing table

Parameteraddress b5:...

With heating circuit pump logic function: Heating cir-cuit pump OFF, if

1: active RTActual > RTSet + 5 K; passive RTActual < RTSet + 4 K2: active RTActual > RTSet + 4 K; passive RTActual < RTSet + 3 K3: active RTActual > RTSet + 3 K; passive RTActual < RTSet + 2 K4: active RTActual > RTSet + 2 K; passive RTActual < RTSet + 1 K5: active RTActual > RTSet + 1 K; passive RTActual < RTSet

6: active RTActual > RTSet; passive RTActual < RTSet - 1 K

Code 2 (cont.)

57

Coding5692548GB

*1Only for weather-compensated control unit.*2Change the coding for the heating circuit without mixer A1 or for mixer circuit M2, if theremote control unit affects that heating circuit.

Parameteraddress b5:...

With heating circuit pump logic function: Heating cir-cuit pump OFF, if

7: active RTActual > RTSet - 1 K; passive RTActual < RTSet - 2 K8: active RTActual > RTSet - 2 K; passive RTActual < RTSet - 3 K



Possible change

Boiler circuit, mixer circuitC5:20 *1Electronic minimum

flow temperature limit instandard mode 20 °C

C5:1toC5:127

Minimum temperaturelimit in standard modeadjustable from 1 to127 °C

C6:74 *1Electronic maximumflow temperature limit74 °C

C6:0toC6:127


d3:14 *1Heating curve slope =1.4

d3:2tod3:35


d4:0 *1Heating curve level =0

d4:–13tod4:40


d5:0 *1The external operat-ing mode changeoverchanges the heatingprogram to "Constantoperation with reducedroom temperature"

d5:1 The external operatingmode changeoverchanges the heating pro-gram to "Constant opera-tion with standard roomtemperature"

E1:1 *1With remote control:Set day value is adjus-table at the remote con-trol unit from 10 to30 °C

E1:0 Set day value adjustablefrom 3 to 23 °C

E1:2 Set day value adjustablefrom 17 to 37 °C

E2:50 *1With remote controlunit and for the heatingcircuit, heating withroom temperature hook-up must be encoded:

E2:0toE2:49

Display correction – 5 KorDisplay correction – 0.1 K

E2:51to

Display correction +0.1 Kor

Code 2 (cont.)

58

Coding

5692548GB




Possible change

No display correction ofthe actual room tem-perature

E2:99 Display correction +4.9 K

E5:0 *2Without variablespeed circuit pump

E5:1 With variable speed cir-cuit pump; automaticrecognition

E6:65 *2Max. speed of thevariable speed pump =65 % of max. speed instandard mode

E6:0toE6:100

Maximum speed adjusta-ble from 0 to 100 % ofmax. speed

E7:30 *2Min. speed of the vari-able speed pump = 30% of max. speed

E7:0toE7:100

Minimum speed adjusta-ble from 0 to 100 % ofmax. speed

E8:1 *2Min. speed subject tothe setting in codingaddress "E9"

E8:0 Speed subject to the set-ting in coding address"E7"

E9:45 *2Speed of the variablespeed pump = 45 % ofmax. speed in reducedmode

E9:0toE9:100

Speed adjustable from 0to 100 % of max. speed

Mixer circuitF1:0 Screed function inactive

(only for weather-com-pensated control units)

F1:1toF1:5

Screed drying functionadjustable in accordancewith five optional tem-perature time profiles(see page 105)

NoteObserve the screed dry-ing supplier's instruc-tions.

Observe DIN 4725-2 orlocal regulations. Thereport to be provided bythe heating contractor

Code 2 (cont.)

59

Coding5692548GB




Possible change

must contain the follow-ing heat-up details:& Heat-up data withrespective flow tem-peratures

& Max. flow temperatureachieved

& Operating conditionand outside tempera-ture during handover

The function continuesafter power failure orafter the control unit hasbeen switched OFF. Theheating program "rw"will be started, after thescreed-drying functionhas been completed or ifthe address is manuallyset to 0.

F1:6toF1:15

Constant flow tempera-ture 20 °C

F2:8 *3Time limit for partyoperation 8 hours orexternal operatingmode changeover viapush button*4

F2:0 No time limit for partymode

F2:1toF2:12

Time limit adjustable from1 to 12 hours *4*4

F5:12 *5*5Run-on time of theinternal circulationpump in heating mode

F5:0 No run-on time of theinternal circulation pump

F5:1toF5:20

Run-on time of the inter-nal circulation pumpadjustable from 1 to

Code 2 (cont.)

60

Coding

5692548GB*3Only for weather-compensated control unit.

*4In heating program "rw", the party mode ends automatically when changing over tooperation with standard room temperature.




Possible change

20 minutesF6:0 *6*6In the "DHW only"

operating mode, theinternal circulationpump is permanentlyOFF

F6:1toF6:24

In the "DHW only" operat-ing mode, the internal cir-culation pump will bestarted 1 to 24 times perday for 10 minutesrespectively.

F6:25 In the "DHW only" operat-ing mode, the internal cir-culation pump ispermanently ON

F7:0 *6*6Internal circulationpump is permanentlyOFF in operating mode"Standby mode"

F7:1toF7:24

In "Standby mode", theinternal circulation pumpwill be started 1 to 24times per day for10 minutes respectively.

F7:25 *6*6Internal circulationpump is permanently ONin operating mode"Standby mode"

Resetting the coding to the as delivered condition

1. Press L and G simultaneouslyfor approx. 2 seconds.

2. Press e."Basic setting? Yes" with d.With a or b, you can select"Basic setting? Yes" or "Basic set-ting? No".

Code 2 (cont.)

61

Coding5692548GB


Function Key combination Exit PageTemperatures, boiler cod-ing card and brief scans

Press K and G simulta-neously for approx.2 seconds

Press d. 63

Relay test Press K and d simulta-neously for approx.2 seconds

Press d. 67

Max. output (heatingmode)

Press K and F simulta-neously for approx.2 seconds

Press d. 17

Operating condition Press c. Press c. 69Maintenance scan c (if "Maintenance"

flashes)Press d. 37

Adjusting the display con-trast

Press d and b simulta-neously; display darkens

– –

Press d and a simulta-neously; display becomeslighter

– –

Error history Press G and d simulta-neously for approx.2 seconds

– –

User check (in conjunc-tion with LON system)

Press L and d simulta-neously for approx.2 seconds

– –

Emissions test function"S"

Press F and E simulta-neously for approx.2 seconds

– –

Coding level 1

Plain text display

Press K and L simulta-neously for approx.2 seconds

– –

Coding level 2Numerical display

Press L and G simulta-neously for approx.2 seconds

– –

Service level summary

62

Service scans

5692548GB

Weather-compensated control unit

1. Press K and G simultaneouslyfor approx. 2 seconds.

2. Select the required scan with aand b.

3. Press d.

The following values can be scanned, subject to the actual equipment level:

& Slope A1 – Level A1& Slope M2 – Level M2& Adj. outside temp.& Actual outside temp.

The adjusted outside temperature can be resetto the current outside temperature with e.

& Set boiler temp.& Actual boiler temp.& Set DHW temp.& Actual DHW temp.& Actual DHW outlet temp.& Set DHW outlet temp.& Set flow temp.& Actual flow temp.

Heating circuit with mixerHeating circuit with mixer

& Set mixed flow temp.& Actual mixed flow temp.

Low loss headerLow loss header

& Boiler coding card& Brief scan 1toBrief scan 8

Display screenBriefscan

Boilercodingcard

N/A N/A X X X X

1 Software versionControl unit

VersionBoiler (EEPROM)

VersionBurner control unit(EEPROM)

Temperatures, boiler coding card and brief scans

63

Service scans5692548GB


2 System design 1 to6Display in accor-dance with the rele-vant design

DisplayKM BUSusers

Max. demand temperature

3 N/A SoftwareversionPro-gram-ming unit

SoftwareversionMixerexten-sion kit

SoftwareversionSolarcontrolunit

SoftwareversionLONsystem

SoftwareversionExt. exten-sion

4 Software versionBurner control unit

TypeBurner control unit

Boiler type

5 0: No ext.demandor oper-atingmodechange-over1: Ext.demandor oper-atingmodechange-over pre-sent

0: Noext.blocking1: Ext.blockingpresent

N/A External hook-up 0 to 10 VDisplay in %

6 Number of LONusers

SoftwareversionThirdpartycontrol-ler

Max. outputDisplay in %

Temperatures, boiler coding card and brief scans (cont.)

64

Service scans

5692548GB


Heating circuit 1(boiler circuit A1)

Heating circuit 2(mixer circuit M2)

7 N/A N/A Remotecontrol0: excl.1: Vito-

trol200

2: Vito-trol300

SoftwareversionRemotecontrol

Remotecontrol0: excl.1: Vito-

trol200

2: Vito-trol300

SoftwareversionRemotecontrol

Internal circultionpump

Heating circuit pumpboiler circuit A1

Heating circuit pumpmixer circuit M2

8 Variablespeedpump0: excl.1: Wilo2: Grun-

dfos

Softwareversionvariablespeedpump

Variablespeedpump0: excl.1: Wilo2: Grun-

dfos


Variablespeedpump0: excl.1: Wilo2: Grun-

dfos


Constant temperature control units

1. Press K and G simultaneouslyfor approx. 2 seconds.Scanning is active.

2. Select the required scan with aand b.

3. Press d.Scanning is completed.


65


Display screenBrief scan

0 Systemdesign, dis-play inaccordancewith thedesign

Software versionControl unit

SoftwareversionOperatinginterface

1 SoftwareversionSolarpanel

Software versionBurner control unit

Softwareversion ext.extension

SoftwareversionCascademodule

E 0: No ext.demand oroperatingmodechange-over1: Ext.demand oroperatingmodechange-over pre-sent

0: No ext.blocking1: Ext.blockingpresent

External hook-up 0 to 10 VDisplay in %

3 Set boiler temperature at the boilertemperature sensor

A Highest demand temperature4 Burner control unit type Boiler type5 Set cylinder temperature at the cylin-

der temperature sensor (currentvalue)

b Max. output in %C Boiler coding card (hexa-decimal)c Version

Equipment (EEPROM)VersionBurner control unit(EEPROM)


66

Service scans

5692548GB

Display screenBrief scan

d Variablespeedpump0: excl.1: Wilo2: Grund-

fos

Softwareversionvariablespeed pump

Testing outputs (relay test)


1. Press K and d simultaneouslyfor approx. 2 seconds.Relay test is activated.

2. Select the relay outputs with aand b.

3. Press d.Relay test is completed.

Subject to the actual equipment level, the following relay outputs can be con-trolled:

Display ExplanationsBasic load Burner modulation lower outputFull load Burner modulation upper outputHeating valve Diverter valve set to heating modeValve central pos. Changeover valve in central position (fill)DHW valve Diverter valve set to DHW modeInt. pump ON Int. pump/output 20 ONClose mixer Mixer extensionOpen mixer Mixer extensionHeating circ. pump M2 ON Mixer extensionOutput int. Internal extensionHeating circ. pump A1 ON Ext. extensionCylinder loading pump ON Ext. extensionDHW circ. pump ON Ext. extensionCentral fault display ON Ext. extension


67


Display ExplanationsSolar pump ON Vitosolic


1. Press K and d simultaneouslyfor approx. 2 seconds.Relay test is activated.

2. Select the relay outputs with aand b.

3. Press d.Relay test is completed.

Subject to the actual equipment level, the following relay outputs can be con-trolled:

Display Explanations1 Burner modulation lower output2 Burner modulation upper output3 Diverter valve set to heating mode4 Valve in central position5 Valve set to DHW mode6 Internal pump / output 20 ON10 Output sK internal extension11 Heating circuit pump A1 external extension12 Cylinder loading pump external extension13 DHW circulation pump external extension14 Central fault external extension

Testing outputs (relay test) (cont.)

68

Service scans

5692548GB





2. Press c.

3. Select the required operating con-dition scan with a or b.

4. Press c.

Heating circuits A1 and M2Operating condition display(subject to system equip-ment level)

Explanations

User no. Encoded user no. in the LON systemHoliday program Display only if a holiday program has been set

upDate of departure DateDate of return DateOutside temperature, ... °C Actual valueBoiler temperature, ... °C Actual valueFlow temperature, ... °C Actual value (only for heating circuit M2)Standardroom temperature, ... °C

Set value

Room temperature, ... °C Actual valueExt. set room temp., ... °C If external hook-upDHW temperature, ... °C Actual DHW temperatureSolar DHW temp., ... °C Actual valueCollector temperature, ... °C Actual valueMixed flow temp., ... °C Actual value, only with low loss headerBurner, ...h*1 Hours run

Burner starts, ... *1*1 Actual value

Solar energy Display in kW/hTime

Scanning operating conditions and sensors

69


*1Reset hours run and burner starts after maintenance has been completed. You can resetthe hours run to 0 by pressing e.

Operating condition display(subject to system equip-ment level)

Explanations

DateBurner OFF or ONInt. pump OFF or ON Output 20Int. output OFF or ON Internal extensionHeating pump OFF or ON External extension or extension kit for one heat-

ing circuit with mixer installedCylinder loading pump OFFor ON

Display only if the external extension is installed

DHW circulation pump OFFor ON


Central fault display OFF orON


Mixer, mixer open or mixerclose

Display only if the extension kit for one heatingcircuit with mixer is installed

Solar pump OFF or ON Display only if Vitosolic is installedSolar pump ...h Hours runVarious languages Each language can be selected as permanent

display language with d.


1. Press c.

2. Select the required operating con-dition scan with a or b.

3. Press c.

Operating condition display (sub-ject to system equipment level)

Explanations

1 15 °C/°F*1 Outside temperature sensor - actualvalue (only if an outside temperaturesensor is connected)

3 65 °C/°F*1 Boiler temperature sensor - actual value

5 50 °C/°F*1 Cylinder temperature sensor - actualvalue

5□ 45 °C/°F*1 Solar - actual DHW temperature

6 70 °C/°F*1 Actual value - collector sensor

263572 h Burner hours run

Scanning operating conditions and sensors (cont.)

70

Service scans

5692548GB

*1Display in °F if the relevant code has been selected and with the fourth display digit.

Operating condition display (sub-ject to system equipment level)

Explanations

030529 Burner starts001417 h Hours run - solar circuit pump002850 Solar energy in kW/h

Scanning operating conditions and sensors (cont.)

71


The last 10 faults are saved and may be called up.

1. Press G and d simultaneouslyfor approx. 2 seconds.

2. Call up the individual fault codeswith a or b.

Order in whichfault codesoccur

Fault code

1...10

Latest fault code...10. last fault code

All saved fault codes can bedeleted with e.

3. Press d.

Call up current fault codes

Red fault indicator U flashes for allfaults.Fault flashes in the programming unitdisplay when a fault message isissued.

A fault in the burner control unitcauses the display to flash E.

Call up fault history of fault codes

72

Troubleshooting

5692548GB

Control unit faults

1. Find current fault with c.

2. Select additional fault codeswith a and b.

3. Acknowledge fault

The fault can be acknowledgedwith d. The fault message in thedisplay will be hidden, but red faultindicator A continues to flash. Anew fault message will be shown inthe display if an acknowledged faultis not removed by 07:00 h the fol-lowing day.

Fault on the burner control unit

1. Find current fault with c.

2. Select additional fault codeswith a and b.

3. Acknowledge fault

The fault can be acknowledgedwith d. The fault message in thedisplay will be hidden, but red faultindicator A continues to flash. Anew fault message will be shown inthe display if an acknowledged faultis not removed by 07:00 h the fol-lowing day.

Call up current fault codes (cont.)

73

Troubleshooting5692548GB

4. E in the display indicates that theburner control unit is locked out.After the fault has been removed,acknowledge by pressing reset E.

Fault display design

A Fault symbolB Plain text fault display (only for

weather-compensated controlunits)

C Fault numberD Fault code

Fault display in plain text& Burner control unit& Outside temperature sensor& Flow sensor& Boiler sensor& Mixed flow sensor& DHW cylinder sensor& Flue gas sensor& DHW outlet sensor& Room temperature sensor& Collector sensor& Solar DHW sensor& Remote control

1. Calling up acknowledged faultmessagesPress d for approx. 3 seconds.The fault will then be displayed.

2. Select the acknowledged faultwith a or b.

Checking and acknowledging faults


Red fault indicator U flashes for allfaults.A fault message code flashes in theprogramming unit display when a faultmessage is issued.Any fault codes present may be calledup with a or b.

Call up current fault codes (cont.)

74

Troubleshooting

5692548GB


NoteThe fault can be acknowledgedwith d. The fault message in the dis-play will be hidden, but the red faultindicator U continues to flash. A newfault message will be displayed if anacknowledged fault is not removed bythe following morning.

Calling up acknowledged fault mes-sagesPress d for approx. 2 seconds;select the acknowledged fault with aor b.

Fault codein the dis-play

Const. Weat-h.comp.

Systemcharacter-istics

Cause Remedy

0F X X Controlmode

Maintenance Carry outmaintenance.Set code 24:0after mainte-nance.

10 X X Controlsaccordingto 0 °C out-side tem-perature

Outside tempera-ture sensor shortedout

Check theoutside tem-perature sen-sor (seepage 84)

18 X X Outside tempera-ture sensor leadbreak

20 X X Controlswithoutflow tem-peraturesensor(low lossheader)

System flow tem-perature sensorshorted out

Check thelow lossheader sen-sor (seepage 85).

28 X X System flow tem-perature sensorlead break

Checking and acknowledging faults (cont.)

75



Const. Weat-h.comp.


Cause Remedy

30 X X Burnerblocked

Boiler temperaturesensor shorted out

Check theboiler tem-perature sen-sor (seepage 85)

38 X X Boiler temperaturesensor lead break

40 X Mixercloses

Heating circuit M2flow temperaturesensor shorted out

Check theflow tempera-ture sensor

48 X Heating circuit M2flow temperaturesensor lead break

50 X X No DHWheating

Cylinder tempera-ture sensor/comfortsensor/loadingsensor shorted out

Check sen-sors (seepage 85)

58 X X Cylinder tempera-ture sensor/comfortsensor/loadingsensor lead break

51 X X No DHWheating

Cylinder tempera-ture sensor 2/outletsensor shorted out

Check sen-sors (seepage 85)

59 X X Cylinder tempera-ture sensor 2/outletsensor lead break

92 X X Controlmode

Solar: Collectortemperature sensorshorted out

Check sensor

9A X X Collector tempera-ture sensor leadbreak

93 X X Controlmode

Solar: Sensor S3shorted out

Check sensor

9B X X Sensor S3 leadbreak

94 X X Controlmode

Solar: Cylindertemperature sensorshorted out

Check sensor


76

Troubleshooting

5692548GB


Const. Weat-h.comp.


Cause Remedy

9C X X Cylinder tempera-ture sensor leadbreak

9F X X Controlmode

Solar control uniterror message

See solarcontrol unitserviceinstructions

A7 X Controlmode

Faulty operatinginterface

Replaceoperatinginterface

b0 X X Burnerblocked

Flue gas tempera-ture sensor shortcircuit

Check theflue gas tem-perature sen-sor (seepage 87)

b8 X X Flue gas tempera-ture sensor break

b1 X X Controlmode

Communicationfault – program-ming unit (internal)

Check con-nections andreplace theprogrammingunit, if neces-sary

b4 X X Emissionstest mode

Internal error ana-log converter

Replace con-trol unit

b5 X X Controlmode

Internal error Replace con-trol unit

b7 X X Burnerblocked

Boiler coding cardmissing, faulty orincorrect cardinserted

Plug in theboiler codingcard orreplace, iffaulty

bA X Mixer M2continuesto move

Communicationfault - extension kitfor mixer circuit M2

Check theextension kitconnectionsand coding.Start theextension kit.


77



Const. Weat-h.comp.


Cause Remedy

bC X Controlmode with-out remotecontrol

Communicationfault - Vitotrolremote controlheating circuit A1

Check con-nections,cable, codingaddress A0and theremote con-trol DIPswitches

bd X Controlmode with-out remotecontrol

Communicationfault - Vitotrolremote controlheating circuit M2

bE X Controlmode

Vitotrol remotecontrol incorrectlyencoded

Check theDIP switchsettings ofthe remotecontrol

bF X Controlmode

Incorrect LON com-munication module

Replace theLON commu-nication mod-ule

C2 X X Controlmode

Communicationfault - solar controlunit

Check con-nections andcodingaddress 54.

C5 X X Controlmode,max. pumpspeed

Communicationerror - variablespeed internalpump

Check codingaddress 30settings;check theheating cir-cuit pumpDIP switchsettings.


78

Troubleshooting

5692548GB


Const. Weat-h.comp.


Cause Remedy

C6 X Controlmode,max. pumpspeed

Communicationfault - variablespeed heating cir-cuit pump, heatingcircuit M2

Check codingaddress E5settings;check theheating cir-cuit pumpDIP switchsettings

C7 X X Controlmode,max. pumpspeed

Communicationfault - variablespeed heating cir-cuit pump, heatingcircuit A1

Check codingaddress E5settings;check theheating cir-cuit pumpDIP switchsettings

Cd X X Controlmode

Communicationfault Vitocom 100(KM BUS)

Check theVitocom 100and connec-tions

CE X X Controlmode

Communicationerror - ext. exten-sion

Check con-nections andcodingaddress 2Esettings.

CF X Controlmode

Communicationsfault - LON commu-nication module

Replace theLON commu-nication mod-ule

dA X Controlmode with-out roominfluence

Room temperaturesensor heating cir-cuit A1 shorted out

Check theroom tem-perature sen-sor - heatingcircuit A1

db X Heating circuit M2room temperaturesensor shorted out

Check theroom tem-perature sen-sor - heatingcircuit M2


79



Const. Weat-h.comp.


Cause Remedy

dd X Room temperaturesensor heating cir-cuit A1 lead break

Check theroom tem-perature sen-sor - heatingcircuit A1

dE X Heating circuit M2room temperaturesensor lead break

Check theroom tem-perature sen-sor - heatingcircuit M2

E4 X X Burnerblocked

Fault - supply vol-tage

Replace con-trol unit

E5 X X Burnerblocked

Internal error Check theionisationelectrode andleads. Checkflue gas sys-tem forsoundness.Press E.

E6 X X Burner infault state

Flue gas/air supplysystem blocked

Check theflue gas/airsupply sys-tem. Checkthe differen-tial pressuresensor.Press E.

F0 X X Burnerblocked

Internal error Replace con-trol unit

F1 X X Burner infault state

Flue gas tempera-ture limiter hasresponded

Check theheating sys-tem waterlevel. Ventthe heatingsystem.Press resetE no soonerthan after20 minutes.


80

Troubleshooting

5692548GB


Const. Weat-h.comp.


Cause Remedy


Temperature limiterhas responded

Check theheating sys-tem waterlevel. Checkthe circula-tion pump.Vent the heat-ing system.Check thetemperaturelimiter andleads.Press E.


The flame signal isalready present atburner start

Check theionisationelectrode andleads.Press E.


No flame signal ispresent

Check theionisationelectrode andleads, mea-sure the ioni-sation cur-rent, checkthe gas pres-sure, checkthe gas com-binationvalve, igni-tion, ignitionmodule, igni-tion electro-des and thecondensatedrain.Press E.


81



Const. Weat-h.comp.


Cause Remedy

F7 X X Burnerblocked

Differential pres-sure sensor faulty

Check the dif-ferential pres-sure sensorand lead.


Fuel valve closestoo late

Check gascombinationvalve. Checkboth controlpaths.Press E.


Fan speed too lowat burner start

Check thefan, check thefan cablesand supply,check the fancontrol.Press E..

FA X X Burner infault state

Fan speed too highat burner start

Check thefan, check thefan cables,check the fancontrol.Press E.

Fd X X Burnerblocked

Burner control unitfault

Check theignition elec-trodes andleads. Checkwhether astrong inter-ference(EMC) fieldexists nearthe equip-ment.Press E.If the fault isnot removed,replace thecontrol unit.


82

Troubleshooting

5692548GB


Const. Weat-h.comp.


Cause Remedy

FE X X Burnerblocked

Strong interference(EMC) field nearby;alternatively boilercoding card ormain PCB faulty

Remove EMCinterference.If the equip-ment will notrestart, checkthe boilercoding cardand replace,or replace thecontrol unit.

FF X X Burnerblocked

Internal error Remove EMCinterference.If the equip-ment will notrestart, checkthe boilercoding cardand replace,or replace thecontrol unit.


83


Checking the outside temperature sensor (weather-compen-sated control unit)

1. Pull plug X3 from the control unit.

2. Test the resistance of the outsidetemperature sensor across term-inals X3.1 and X3.2 on the pulledplug and compare with the curve.

3. Where actual values strongly devi-ate from the curve values, discon-nect the wires at the sensor andrepeat test directly at the sensor.

4. Depending on the result, replacecable or outside temperature sen-sor.

Repairs

84

Troubleshooting

5692548GB

Check the boiler temperature sensor, cylinder temperaturesensor or the flow temperature sensor for low loss header

1. Boiler temperature sensor: Pull theleads from boiler temperaturesensor A and measure the resis-tance.Cylinder temperature sensor: Pullthe plug % from the cable harnesson the control unit and measure theresistance.Flow temperature sensor: Pull plugX3 from the control unit and mea-sure the resistance across term-inals X3.4 and X3.5.

Repairs (cont.)

85


2. Check the sensor resistance andcompare actual values with thecurve.

3. Replace the sensor in case ofsevere deviation.

DangerThe boiler temperature sen-sor is immersed in the heat-ing water (risk of scalding).Drain the boiler before repla-cing the sensor.

Checking loading temperature sensor

1. Pull the cables off loading tempera-ture sensor A.


Repairs (cont.)

86

Troubleshooting

5692548GB


DangerThe loading temperaturesensor is immersed in theheating water (risk of scald-ing).Drain the boiler before repla-cing the sensor.

Checking the flue gas temperature sensor

The flue gas temperature sensor locks out the boiler when the permissible fluegas temperature is exceeded. The lockout can be reset no sooner than after 20minutes by pressing reset E.

NoteThe equipment will also be locked out again for 20 minutes if the mains powersupply is switched OFF.

Repairs (cont.)

87


1. Pull the leads from the flue gastemperature sensor A .



Repairs (cont.)

88

Troubleshooting

5692548GB

Checking plate heat exchanger

1. Shut off and drain the boiler on theprimary and the secondary side.

2. Release the side closures andpivot the control unit forward.

3. Remove the siphon.

4. Release fittings A, screws B andpull plate heat exchanger C for-ward.

NoteDuring removal, small amounts ofwater may trickle out and escapefrom the removed plate heatexchanger.

5. Check the secondary side for scal-ing and, if necessary, replace theplate heat exchanger.

6. Check the primary connections forcontamination and, if necessary,replace the plate heat exchanger.

7. Install in reverse order using newgaskets. Lubricate the new gas-kets/seals.

Repairs (cont.)

89


Checking the thermocouple

If the burner control unit cannot bereset after a fault shutdown, althoughthe boiler water temperature is belowapprox. 90 °C:& Pull the leads fromthermocouple A.

& Check the continuity of the thermo-couple with a multimeter.

& Remove the faulty thermocouple.& Install a new thermocouple.& After commissioning, press resetbutton E on the control unit.

Checking and replacing pressure differential sensor

Check the sensor in case of fault messages concerning the differential pressuresensor:& correct installation& electrical connection& correct position of the O-rings inside the adaptor& are the test nipples closed with plugs?Replace the sensor if fault messages persist.

Repairs (cont.)

90

Troubleshooting

5692548GB

Checking O-rings: 1. Pull off the electrical plug A.

2. Remove sensor B by pulling itupwards.

3. Ensure that both O-ringsC areproperly inserted into apertureadaptor retainers D.

4. Insert the sensor with connectionnipples into the gas combinationvalve adaptor and push in until itclicks into place.

5. Reconnect the electrical plug-inconnector on the sensor.

Repairs (cont.)

91


Checking the fuse

1. Switch OFF the mains power.

2. Release the lateral closures andpivot the control unit down.

3. Remove cover A.

4. Check fuse F1.

Repairs (cont.)

92

Troubleshooting

5692548GB

Extension kit for heating circuit with mixer

Checking the rotational direction of the mixer motor

A Rotational direction switchB ON/OFF switch 8

1. Switch OFF the motor and restart itat the main ON/OFF switch. Thedevice will carry out the followingself-test:& Mixer close (150 seconds)& Pump ON (10 seconds)& Mixer open (10 seconds)& Mixer close (10 seconds)Then standard control mode recom-mences.

2. Note the rotational direction of themixer motor during the self-test.Then set the mixer manually to theopen position.

NoteThe flow temperature sensor mustnow sense a higher temperature. Ifthe temperature falls, either themotor is turning in the wrong direc-tion or the mixer set is incorrectlyfitted.

Mixer installation instruc-tions

3. Adjust the rotational direction of themixer motor (if required).& Switch position I for heatingreturn from the l.h. side (as deliv-ered condition).

& Switch position II for heatingreturn from the r.h. side.

Repairs (cont.)

93


Checking Vitotronic 050 (accessory)

Vitotronic 050 is connected with the control unit via the LON system. To test theconnection, implement a user check on the boiler control unit (see page 33).

Repairs (cont.)

94

Troubleshooting

5692548GB

Heating modeThe set boiler water temperature willbe maintained in the Central heatingand DHW heating G program, whena demand is raised by the room tem-perature-dependent clock thermostat.If no demand is received, the boilerwater temperature will be held at thedefaulted frost protection tempera-ture. The burner control unit limits theboiler water temperature: through thecontrol thermostat to 74 °C, andthrough the electronic temperaturelimiter to 82 °C. The temperature lim-iter in the safety chain locks out theburner control unit at a boiler watertemperature of 100 °C.

Heating the DHW loading cylinderfrom coldThe heating circuit pump is switchedON, and the three-way diverter valvewill be activated, if the cylinder tem-perature sensor recognises a tem-perature lower than the settemperature.Then,& at a boiler water temperature ≥ thanthe set DHW temperature, the DHWloading pump is switched ON.

& at a boiler water temperature ≤ thanthe DHW set temperature, the bur-ner is switched ON and, after therequired boiler water temperaturehas been reached, the DHW loadingpump is switched ON.

The cylinder is then loaded up to theset DHW temperature. Heating stopswhen the set temperature has beenreached at the cylinder temperaturesensor and at the loading temperaturesensor. The DHW loading pump andthe three-way diverter valve remainON after loading for a further 30 sec-onds.Reheating when DHW is drawn offWhen DHW is drawn off, cold waterenters at the bottom of the cylinder.The heating circuit pump is switchedON, and the three-way diverter valveis activated, if the cylinder tempera-ture sensor recognises a temperaturelower than the set temperature.Then,& at a boiler water temperature ≥ thanthe set DHW temperature, the DHWloading pump is switched ON.


The DHW is regulated to the set tem-perature via the loading temperaturesensor. The cylinder continues to beheated up after the draw off processhas ceased, until the set DHW tem-perature has been reached at thecylinder temperature sensor. TheDHW loading pump and the three-waydiverter valve remain ON for a further30 seconds.

Constant temperature control unit

95

Function description5692548GB

A Heating programsB Comfort modeC InformationD Basic settingsE Confirmation/acknowledgement

F Setting valuesG DHW temperatureH Emissions test functionK Boiler water temperature

Constant temperature control unit (cont.)

96

Function description

5692548GB

Heating modeThe control unit determines a set boi-ler water temperature subject to out-side temperature or room temperature(if a room temperature-dependentremote control is connected) and theslope/level of the heating curve. Thedetermined set boiler water tempera-ture is then transferred to the burnercontrol unit. From the set and actualboiler water temperatures, the burnercontrol unit calculates the modulationlevel and controls the burner accord-ingly. The burner control unit limits theboiler water temperature: through thecontrol thermostat to 74 °C andthrough the electronic temperaturelimiter to 82 °C. The thermocouple inthe safety chain locks out the burnercontrol unit at a boiler water tempera-ture of 100 °C.

Heating the DHW loading cylinderfrom coldThe heating circuit pump is switchedON, and the three-way diverter valvewill be activated, if the cylinder tem-perature sensor recognises a tem-perature lower than the settemperature.Then,& at a boiler water temperature ≥ thanthe set DHW temperature, the DHWloading pump is switched ON.


The cylinder is then loaded up to theset DHW temperature. Heating stopswhen the set temperature has beenreached at the cylinder temperaturesensor and at the loading temperaturesensor. The DHW loading pump andthe three-way diverter valve remainON after loading for a further 30 sec-onds.

Reheating when DHW is drawn offWhen DHW is drawn off, cold waterenters at the bottom of the cylinder.The heating circuit pump is switchedON, and the three-way diverter valveis activated, if the cylinder tempera-ture sensor recognises a temperaturelower than the set temperature.Then,& at a boiler water temperature ≥ thanthe set DHW temperature, the DHWloading pump is switched ON.


The DHW is regulated to the set tem-perature via the loading temperaturesensor. The cylinder continues to beheated up after the draw off processhas ceased, until the set DHW tem-perature has been reached at thecylinder temperature sensor. TheDHW loading pump and the three-waydiverter valve remain ON for a further30 seconds.


97


A Heating circuit time programB DHW time program

and DHW circulation (if connectedto the control unit)

C Holiday programD InformationE Heating programsF Standard room temperatureG Economy mode

H Party modeK Basic settingsL Confirmation/acknowledgementM Setting valuesN DHW temperatureO Emissions test functionP Reduced room temperatureR Date/time

Weather-compensated control unit (cont.)

98


5692548GB

Internal extension H1

The internal extension is integratedinto the control unit housing. Thecylinder loading pump is connected tothe relay output sK.

An external safety valve can be con-nected to connection gD.


99



The internal extension is integratedinto the control unit housing. Thecylinder loading pump is connected torelay output sK.

Set coding address 53 to 3.An interlock for extractors can be con-nected to connection aBJ.

Extensions for external connections (accessory)

100


5692548GB

External extension H1

The external extension is connectedto the boiler control unit via the KMBUS. The following functions can becontrolled or processed via this exten-sion:sÖ Heating circuit pump for heating

circuit without mixersK DHW circulation pumpfÖ Power supplygÖ Central fault message

aVD & External blocking(terminals 2 - 3)

& External demand(terminals 1 - 2)

& External operating mode chan-geover (terminals 1 - 2)

aVF External set value 0 to 10 VaVG KM BUSThe allocation of function Externalchangeover of operating mode isselected via coding address 91.

Extensions for external connections (accessory) (cont.)

101


External extension H2

The external extension is connectedto the boiler control unit via the KMBUS. The following functions can becontrolled or processed via this exten-sion:sK DHW circulation pumpfÖ Power supply

aVD & External blocking(terminals 2 - 3)

& External demand(terminals 1 - 2)

& External operating mode chan-geover (terminals 1 - 2)

aVG KM BUSThe allocation of function Externalchangeover of operating mode isselected via coding address 91.

Extensions for external connections (accessory) (cont.)

102


5692548GB

External operating mode changeover

The function External operating modechangeover is connected via inputaVD of the external extension. Withcoding address 91 you can select, forwhich heating circuit the changeoverof operating mode should apply:

Coding Changeover of operating mode appliesto:

91:0 No changeover91:1 Heating circuit without mixer (A1)91:2 Heating circuit with mixer (M2)91:3 Heating circuit without mixer and heating

circuit with mixer

With coding address d5, you canselect in which direction the change-over should be made, for each heat-ing circuit:


d5:0 Changeover towards Constantly reducedor Constant standby mode (subject to theselected set value)

d5:1 Changeover towards Constant heatingmode

You can select the duration of theoperating mode changeover with cod-ing address "F2".


F2:0 No changeover of operating modeF2:1 toF2:12

Duration of the operating mode change-over 1 to 12 hours

Control functions

103


The changeover of operating moderemains active as long as the contactremains closed, but no less than thedefault duration selected with codingaddress F2.

External blocking

The function External blocking is con-nected via input aVD of the externalextension.

In coding address 32 you can selectthe influence the signal Ext. blockingshould have on the connected circula-tion pumps.

External demands

The function External demands isconnected via input aVD of the exter-nal extension.In coding address 34 you can selectthe influence the signal Ext. demandsshould have on the connected circula-tion pumps.

In coding address 9b, you can selectthe minimum set boiler water tem-perature in case of external demand.

Venting program

NoteClose the gas shut-off valve whenoperating the venting program.

During the venting program, the circu-lation pump will be alternatelyswitched ON and OFF for 30 secondsrespectively over a period of20 minutes.

The diverter valve is alternatelyswitched for a certain period towardsheating and DHW operation. The bur-ner is switched OFF during the vent-ing program.The venting program is activated viacoding address 2F:1. The program isautomatically deactivated after20 minutes, and the coding address isset to 0.

Control functions (cont.)

104


5692548GB

Filling program

NoteClose the gas shut-off valve whenoperating the filling program.

In the delivered condition, the divertervalve is set to its central position,enabling the system to be filled com-pletely. After starting the control unit,the diverter valve no longer goes intoits central position.

The diverter valve can be moved intoits central position via coding address2F:2. The system can be filled com-pletely, if the control unit is switchedOFF in this position.

Filling with the control unit switched ON

If the system is to be filled with thecontrol unit switched ON, the divertervalve is moved into its central positionvia coding address 2F:2, and thepump is started. The burner shutsdown if this function is activated viacoding address 2F. The program isautomatically deactivated after20 minutes, and the coding address isset to 0.

Screed function

The screed drying functions enablesthe drying of a freshly laid screed. Forthis, always observe the instructionsissued by the screed manufacturer.

Various temperature profiles areavailable for selection.


105


Temperature profile: Diagram 1 (DIN 4725 part 4) code F1:1

Temperature profile: Diagram 2 code F1:2



106


5692548GB



Temperature profile: Factory settings code F1:6 to F1:15


107


A1 Main PCB§ Boiler temperature sensor

$ Cylinder temperature sensor% Loading temperature sensor

Connection and wiring diagrams – internal connections

108

Designs

5692548GB

aA Ionisation electrodeaG Flue gas temperature sensordÖ Step motor for diverter valvefJ Thermocouple

gF Ignition unita-Ö Fan motoraNF Air pressure sensor

Connection and wiring diagrams – internal connectio . . . (cont.)

109

Designs5692548GB

A1 Main PCBA2 Mains supply unit

A3 OptolinkA4 Burner control unit

Connection and wiring diagrams – external connections

110

Designs

5692548GB

A5 Operating interfaceA6 Coding cardA7 Connection adaptorA8 LON communication moduleA9 Internal extension H1 or H2S1 ON/OFF switchS2 Reset button! Outside temperature sensor? Flow temperature sensor low

loss header

% Cylinder temperature sensorsÖ Internal circulation pumpsK Loading pumpdG Gas solenoid valvefÖ Power supplylH Mains power supply - acces-

sories and Vitotrol 100a-Ö Fan motoraYA Gas governoraVG KM BUS

Connection and wiring diagrams – external connectio . . . (cont.)

111

Designs5692548GB

Spare parts informationQuote the type and serial no. (see type plate) and the item no. of the requiredpart (as per this parts list).Obtain standard parts from your local supplier.

001 Heat exchanger connection pipewith gaskets

002 Flow pipework003 DHW connecting pipe004 DHW connecting pipe005 Cylinder connecting pipe006 Return connecting pipe007 Gas connection flange008 Stratification loading cylinder009 Siphon010 Condensate hose011 Heat exchanger siphon connec-

tion012 Heat exchanger013 Cap plate (with item 014)014 Profiled gasket015 Clip nut016 Interlocking connector017 Boiler adaptor018 Plug019 Air inlet gasket Ø 125020 Lip seal Ø 80021 Boiler connection grommets022 Connection line - diaphragm

expansion vessel023 Diaphragm expansion vessel024 Pressure gauge and fem. con-

nection025 Quick-acting air vent valve026 Overflow valve027 Safety valve028 Air vent valve G⅜"029 Linear step motor030 Non-return valve031 Ball valve R½" with handle033 Flat seal set034 Set of plug connector retainers035 Safety spring

036 Plate heat exchanger037 Gasket set - plate heat exchan-

ger040 Grommets (set)051 Burner (with items 050, 052 to

064)052 Ignition unit055 Burner gauze assembly056 Radial fan057 Pressure transmitter058 Gas train059 Conversion kit for natural gas E

(gas restrictor)060 Conversion kit for natural gas LL

(gas restrictor)061 Conversion kit for LPG P (gas

restrictor)064 Burner gauze assembly gasket100 Vitodens control unit101 Rear cover102 Locking clips (10 pieces)103 Support104 Pivot arm105 Hinge pins (10 pieces)106 Damper107 Pressure gauge retainer108 Clip (10 pieces)109 Hinge (10 pieces)110 Boiler coding card111 Fuse 6.2 A s (10 pieces)112 Operating interface for constant

temperature operation113 Operating interface for weather-

compensated operation122 LON module123 PCB adaptor - LON module151 Outside temperature sensor152 Cylinder temperature sensor

Parts lists

112

Parts lists

5692548GB

153 Flue gas temperature sensor154 Thermocouple155 Temperature sensor200 Side panel201 Front top panel202 Rear panel, top203 Front panel, top204 Front panel, bottom205 Tie-bar206 Adjustable foot300 Circulation pump motor301 Circulation pump motor352 Gasket354 Anode flange with gasket355 Thermal insulation – flange

Wear parts050 Burner gasket053 Ignition electrode with gasket054 Ionisation electrode with gasket353 Magnesium anode Ø = 26 × 280/

250

Parts not shown032 Gasket set - plug-in connector038 Special grease

039 Heat conducting paste062 Burner maintenance set063 Set of small burner parts115 Adaptor - ionisation current test

cable116 Cable harness X8/X9117 Cable harness 100/35/34 (aux-

iliary earth)118 Step motor connecting cable119 Cable harness ionisation/KM

BUS (internal)120 Internal ionisation lead207 Fastenings208 Touch-up paint stick, Vitowhite209 Touch-up spray paint, Vitowhite350 Seal washer351 Strain relief400 Operating instructions for con-

stant temperature operation401 Operating instructions for

weather-compensated operation403 Installation instructions404 Service instructionsA Type plate

Parts lists (cont.)

113

Parts lists5692548GB

Parts lists (cont.)

114

Parts lists

5692548GB

Parts lists (cont.)

115


Parts lists (cont.)

116

Parts lists

5692548GB

Parts lists (cont.)

117


Parts lists (cont.)

118

Parts lists

5692548GB

Parts lists (cont.)

119


Setting and test values Set value Initial start-up

Date:By:

Static pressure mbar max. 57.5 mbar

Supply pressure (flow pressure)= for natural gas E mbar 17.4 to

57.5 mbar= for natural gas LL mbar 17.4 to

57.5 mbar= for LPG mbar 42.5 to

57.5 mbarTick gas type

Carbon dioxide content CO2

& at lower rated output % byvol.

& at upper rated output % byvol.

Oxygen content O2



Carbon monoxide content CO& at lower rated output ppm& at upper rated output ppm

Ionisation current µA min. 5 µA

Commissioning/service reports

120


5692548GB

Maintenance/ser-vice

Maintenance/service

Maintenance/service


Commissioning/service reports (cont.)

121

Commissioning/service reports5692548GB

Setting and test values Set value Maintenance/service

Date:By:









Oxygen content O2






122


5692548GB


Maintenance/service

Maintenance/service



123


Setting and test values Set value Maintenance/service

Date:By:









Oxygen content O2






124


5692548GB


Maintenance/service

Maintenance/service



125


Rated voltage: 230 V~Rated frequency: 50 HzRated current : 6.3 A~Safety class: IProtection level: IP X 4 D to

EN 60529

Permissible ambient temperature& in operation: 0 to +40 °C& during storageand transport:

-20 to +65 °C

Electronic tempera-ture limiter setting:

82 °C

Temperature limitersetting:

100 °C (fixed)

Mains fuse: Max. 16 A

Power consumption& Circulation pump: Max. 115 W& Burner: Max. 60 W& Control unit: Max. 10 VA

Gas fired boiler, category II 2ELL3PRated output TV/TR 50/30 °C kW 6.6 to 26Rated output range kW 6.3 to 24.7Connection values *1Relative to the max. loadwith with HuB

natural gas E 9.45 kWh/m3

34.02 MJ/m3m3/h 2.65

natural gas LL 8.13 kWh/m3

29.25 MJ/m3m3/h 3.08

LPG 12.79 kWh/m3

46.04 MJ/m3m3/h 1.94

Product ID _-0085 BO0338

Product characteristics (to EnEV [Germany])Rated output range kW 6.6 to 26Efficiency µ for& 100 % of rated output % 96.3& 30 % of rated output % 107.4Standby loss q B,70*2 % 0.7

Power consumption *2 for& 100 % of rated output W 207& 30 % of rated output W 69

Specification

126

Specification

5692548GB*1The supply values are only for reference (e.g. in the gas contract application) or to esti-

mate the supplementary volumetric settings. Because of factory settings, the gas pres-sure must not be altered from these values. Reference: 15 °C, 1013 mbar.

*2Max. limit to EnEV

Declaration of conformity for Vitodens 333

We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as soleresponsible body, that the product

Vitodens 333

conforms to the following stan-dards:

This product is designated in accor-dance with the following directives:

DIN 4702–6 90/396/EECDIN 4753 89/336/EECEN 297 73/23/EECEN 483 92/42/EECEN 625 97/23/ECEN 677EN 50 165EN 60 335EN 61 000-3-2 as follows:EN 61 000-3-3 _-0085

EC Declaration of conformity by an authorised body according to EMVG article10.2 Certificate number: E9 02 08 1730.This product complies with the requirements of the Efficiency Directive(92/42/EEC) for:Condensing boilersThe product characteristics determined as system values for the product Vito-dens 333 as part of EC type testing according to the Efficiency Directive(see specification table), can be utilised to assess the energy consumption ofheating and ventilation equipment to DIN V 4701-10 which is specified by theEnEV [Germany].

Allendorf, 14.01.04 Viessmann Werk GmbH&Co KG

pp. Manfred Sommer

Declaration of conformity

127

Certificates5692548GB

We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, confirm that the fol-lowing product meets the NOx limits specified by 1st BImSchV Paragraph 7 (2)[Germany]:

Vitodens 333

Allendorf, 14.01.04 Viessmann Werk GmbH&Co KG

pp. Manfred Sommer

Manufacturer's certificate according to the 1st BImSchV [Germany]

128

Certificates

5692548GB

AAdjusting the room temperature . . . . 35

BBoiler temperature sensor . . . . . . . . . . . . . 85Brief scans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Burner gauze assembly . . . . . . . . . . . . . . . . 20Burner installation . . . . . . . . . . . . . . . . . . . . . . . . 22Burner removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CChecking the anode . . . . . . . . . . . . . . . . . . . . . 25Checking the differential pressuresensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Checking the magnesium anode . . . 25Cleaning agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Cleaning the combustion chamber . 22Cleaning the DHW cylinder . . . . . . . . . . . 24Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Code 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Code 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Coding during commissioning . . . . . . . 27Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Condensate drain . . . . . . . . . . . . . . . . . . . . . . . . . 23Connection diagrams . . . . . . . . . . . . . . . . . 108Cylinder temperature sensor . . . . . . . . . 85

DDeclaration of conformity . . . . . . . . . . . . 127Deleting codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

EExtension kit for heating circuit withmixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93Extension& external . . . . . . . . . . . . . . . . . . . . . . . . . . 101, 102& internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99, 100External blocking . . . . . . . . . . . . . . . . . . . . . . . 104External demand . . . . . . . . . . . . . . . . . . . . . . . . 104External demands . . . . . . . . . . . . . . . . . . . . . . 104

FFault history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Fault message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74Fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Filling function . . . . . . . . . . . . . . . . . . . . . . . . . . . 105Filling program . . . . . . . . . . . . . . . . . . . . . . . . . . . 105Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . 7Finding errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Finding faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Flue gas temperature sensor . . . . . . . . . 88Function descriptions . . . . . . . . . . . . . . . . . . . 95Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

GGas combination valve . . . . . . . . . . . . . . . . . 13Gas supply pressure . . . . . . . . . . . . . . . . . . . . 14Gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

HHeating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Heating curve slope . . . . . . . . . . . . . . . . . . . . . 35Heating surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . 22

IIgnition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Ignition electrodes . . . . . . . . . . . . . . . . . . . . . . . . 21Ionisation current . . . . . . . . . . . . . . . . . . . . . . . . . 26Ionisation electrode . . . . . . . . . . . . . . . . . . . . . . 21

LLanguage selection . . . . . . . . . . . . . . . . . . . . . . . 9Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Level heating curve . . . . . . . . . . . . . . . . . . . . . . 35Loading temperature sensor . . . . . . . . . 86LON communication module . . . . . . . . . 32LON system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32LON user check . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

MManufacturer's Declaration . . . . . . . . . 128

Keyword index

129

Keyword index5692548GB

OOperating mode changeover . . . . . . . 103Outside temperature sensor . . . . . . . . . . 84

PParts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112Plate heat exchanger . . . . . . . . . . . . . . . . . . . 89Product characteristics . . . . . . . . . . . . . . . 126Protective anode& Checking the anode . . . . . . . . . . . . . . . . . . . 23

RRelay test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Replacing the anode . . . . . . . . . . . . . . . . . . . . 25Replacing the magnesium anode . . 25Resetting the coding to the asdelivered condition . . . . . . . . . . . . . . . . . . . . . . . 61

SSafety chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Scanning operating conditions . . . . . . 69Scanning sensors . . . . . . . . . . . . . . . . . . . . . . . . 69Screed drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105Screed function . . . . . . . . . . . . . . . . . . . . . . . . . . 105Service level summary . . . . . . . . . . . . . . . . . 62Service report . . . . . . . . . . . . . 120, 122, 124Setting the output . . . . . . . . . . . . . . . . . . . . . . . . . 17Setting up LON user numbers . . . . . . . 32Siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Soundness test, balanced fluesystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126Static pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 13System designs . . . . . . . . . . . . . . . . . . . . . 27, 39System pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TTemperature scans . . . . . . . . . . . . . . . . . . . . . . . 63Testing functions . . . . . . . . . . . . . . . . . . . . . . . . . . 67Testing outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Thermocouple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

VVenting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Venting program . . . . . . . . . . . . . . . . . . . . . . . . 104Vitotronic 050 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

WWiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Keyword index (cont.)

130

Keyword index

5692548GB

131

5692548GB

Applicability

Compact gas fired condensing boi-lerType WS3A6.6 to 26 kWfrom serial no.7177 362 3 00001

132

Printedonenvironmentally

-friendly,

chlorine-freebleach

edpaper

5692548GB

Subject

totech

nicalm

odifications

Viessmann LimitedHortonwood 30, Telford, TF1 7YP, GBTelephone: +44 1952 675000Fax: +44 1952 675040www.viessmann.co.uk

Viessmann - Vitodens 333 - Lets FixIt · Vitodens 333 Type WS3A , 6.6 to 26.0 kW Compact gas fired...

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Transcript of Viessmann - Vitodens 333 - Lets FixIt · Vitodens 333 Type WS3A , 6.6 to 26.0 kW Compact gas fired...