installation instructions viesmann · 2012. 4. 15. · installation instructions viesmann for...
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VIESMANNInstallation instructionsfor heating engineers
Vitodens 300Type WB3A, 49 and 66 kWGas fired wall mounted condensing boilernatural gas and LPG version
VITODENS 300
5862 570 GB 5/2004 Dispose after installation
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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 in theVitotec 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.Please observe all commissioningwork specified for gas systems.
Safety instructions
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Preparing for installationProduct information .................................................................................... 4Preparations for boiler installation ............................................................... 4
InstallationInstalling the boiler and making all connections ........................................... 6& Wall mounting bracket installation ............................................................ 6& Hanging the boiler into the wall mounting bracket ..................................... 7Heating water (primary) connection............................................................. 8Flue gas connection.................................................................................... 8Condensate connection .............................................................................. 8Gas 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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Vitodens 300, Type WB3A
Set up for operation with natural gas E or LPG P.The natural gas E version can be converted to natural gas LL using a conver-sion kit.The LPG P version can be converted to natural gas E or LL using a conversionkit.
Preparations for boiler installation
A Heating flow G1½" B Safety valve
Product information
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C DHW cylinder flow G1½"D Gas connectionE DHW cylinder return G1½"F Heating return G1½"
G Expansion vesselH Cable arrangement areaK Recommended dimensionL Condensate drain
1. Prepare the water connections.Thoroughly flush the heating sys-tem.
2. Prepare the gas connectionaccording to TRGI or TRF or alllocal regulations.
3. 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 should pro-trude 1200 mm from the wall.
Preparations for boiler installation (cont.)
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Wall mounting bracket installation
NoteThe enclosed screws and rawl plugs are only suitable for concrete. For otherconstruction materials, use fixings which are suitable for 110 kg loads.
A Reference point: boiler top edgeB Boiler installation template
(included with the boiler)
C Top edge finished floorD Recommendation
Installing the boiler and making all connections
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Hanging the boiler into the wall mounting bracket
Installing the boiler and making all connections (cont.)
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A Heating flowB DHW flowC Gas connectionD DHW returnE Heating returnF Expansion vessel
Connect the boiler to the on-site pipe-work.
Flue gas connection
Connect the balanced flue pipe. Flue gas system installationinstructions
Condensate connection
Connect the condensate drain with apipe air vent valve sloping to the pub-lic sewer.
Heating water (primary) connection
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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.
Gas 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 connectionB Heating circuit pump or boiler cir-
cuit pump
Electrical connections
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C Vitotrol 100 UTD (only for controlunits operating with a constanttemperature)
D Vitotrol 100 UTA (only for controlunits operating with a constanttemperature)
Plug 230 V~fÖ Power supply
& Never interchange cores L1 andN.
& 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.sÖ Heating circuit pump or boiler cir-
cuit pumplH & 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. 4 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)
% Cylinder temperature sensor(part of the DHW cylinder con-nection set).Connection to cables with plugsoutside of the control unit.
aVG KM BUS user (accessory)& Vitotrol 200 or 300 remote con-trol
& Vitocom 100& Extension kit for one heatingcircuit with mixer
& Vitosolic& External extension H1 or H2
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