Viessmann Vitodens 200-W Installation Instructions Manual
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Viessmann Vitodens 200-W Installation Instructions Manual

4.8 to 35.0 kw wall mounted gas fired condensing boiler natural gas and lpg version
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Installation Instructions

For Corgi Registered Heating Engineers
Vitodens 200-W
Type WB2B, 4.8 to 35.0 kW
Wall mounted gas fired condensing boiler
Natural Gas and LPG version
VITODENS 200-W
5350 485 GB 06/2007
Please keep these instructions in a safe place

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Summary of Contents for Viessmann Vitodens 200-W

  • Page 1: Installation Instructions

    Installation Instructions For Corgi Registered Heating Engineers Vitodens 200-W Type WB2B, 4.8 to 35.0 kW Wall mounted gas fired condensing boiler Natural Gas and LPG version VITODENS 200-W 5350 485 GB 06/2007 Please keep these instructions in a safe place...

  • Page 2: Table Of Contents

    Index Product information ........... . . 4 Safety instructions .
  • Page 3 Index Electrical connections ........... 46 Combination boiler .

  • Page 4: Product Information

    47-819-11 Appliance description The appliance is designed for use with sealed primary water systems (only) and The Vitodens 200-W is a fully automatic, incorporates a circulation pump, diverter wall hung, fan assisted balanced flue valve assembly, flow switch (combination condensing boiler for use with natural gas boiler only), DHW plate-type heat (G20) and LPG.

  • Page 5: Safety Instructions

    Safety instructions Please follow these safety instructions closely to prevent the risk of accidents and material damage. Safety instructions explained If you notice a smell of gas Danger Danger This symbol warns against the Escaping gas can cause risk of injury. explosions which may lead to serious injury.
  • Page 6 For replacements, use only original spare parts from Viessmann or those which are approved by Viessmann.

  • Page 7: Technical Specification

    Technical Specification General Specifications and Performance Data. Vitodens 200-W WB2B Appliance Combi 26 kW Combi 30 kW Combi 35 kW Mode Unit Rated Central heating Output Tf/Tr 50/30 ºC (condensing) 6.5 to 26.0 8.8 to 30.0 8.8 to 35.0 Tf/Tr 80/60 ºC (non condensing) 5.9 to 24.1...
  • Page 8 Technical Specification General Specifications and Performance Data. Vitodens 200-W WB2B Appliance System 19 kW System 26 kW System 30 kW System 35 kW Mode Unit Rated Central Heating Output Tf/Tr 50/30 ºC (condensing) 4.8 to 19.0 6.5 to 26.0 8.8 to 30.0 8.8 to 35.0...

  • Page 9: Appliance Dimensions/Connections

    Appliance dimensions/connections Heating flow Rp " to 22mm Cu Cold water Rp " (combi boiler) to 15mm Cu Cylinder return G " (boiler) to DHW Rp " (combi boiler) |15mm Cu to 15mm Cu Cylinder flow G " (boiler) Heating return Rp "...

  • Page 10: Installation Clearances

    Installation clearances The following minimum clearances (mm) must be maintained for installing and maintaining the appliance. Behind a cupboard door. Space required for servicing.

  • Page 11: Sectional Diagram

    Sectional diagram Combination boiler illustrated...

  • Page 12: Installation Requirements

    Installation requirements Statutory requirements The appliance is suitable only for installation in GB and IE and should be installed in accordance with the rules in force. In GB, a corgi Registered Installer must carry out the installation. It must be carried out in accordance with the relevant requirements of the: Gas safety (installation and use) regulations (current issue) It is in your own interest and safety to ensure that the law is complied with.

  • Page 13: Flue Terminal Position

    Flue terminal position • If the appliance is to be installed in a • A compartment used to enclose the room containing a bath or shower, any appliance must be designed and electrical switch or control constructed specifically for this utilising mains electricity must be so purpose.
  • Page 14 Flue terminal position (cont.) Position Minimum Spacing Below eaves 200mm Below a balcony 200mm From vertical drain or soil pipes 150mm From internal and external corners 300mm Above adjacent ground or balcony level/roof 300mm From a surface facing the terminal 600mm Facing terminals 1200mm...
  • Page 15 Flue terminal position (cont.) Position Minimum Spacing From adjacent wall 300mm From adjacent opening window 1000mm From another terminal 600mm Minimum height 300mm Flue Terminal Location • If the terminal discharges into a pathway or passageway check that combustion Detailed recommendations for flue products will not cause nuisance and installation are given in BS 5440:1.

  • Page 16: Flue System

    • Keep the flue gas path as short as gas temperatures up to 120 ºC. The interior possible and with the smallest possible design of Viessmann condensing boilers number of bends. ensures that the maximum permissible flue • Check the seating of the gaskets in all gas temperature will not be exceeded.
  • Page 17 Flue system (cont.) Concentric Vertical Flue System Before commencing the installation refer to The vertical flue kit option with extensions diagram below to determine which optional may be used for up to 10m total flue extension kits are required, if any. length.
  • Page 18 Flue system (cont.) Elbows and extensions Extension Elbow 45º Elbow 87º...

  • Page 19: Plume Kit Installation Instructions

    Plume kit installation instructions The plume kit enables the relocation of the flue outlet of a standard horizontal flue system to another position and is available as an optional extra, please contact your supplier for further information. Routing options Plume kit standard delivery 2m max Plume kit standard delivery length additional options:...
  • Page 20 Fitting the plume kit 1. Unhook the external wall terminal of the flue at the external pipe and extract the flue with the end piece and the wall bezel. 2. Push the gasket and flue bend into the connector. 3. Push the flue bend with the connector into the replacement pipe of the external wall terminal (transparent, 583mm long).
  • Page 21 Fitting the plume kit (cont.) 4. Push the replacement pipe with the connector and flue bend into the inner flue duct and secure with the screws supplied. 5. Refit the wall bezel.

  • Page 22: Ventilation Requirements

    Fitting the plume kit (cont.) 6. Fit the flue pipes and bends in accordance with the selected installation method and secure with the fixing clamps supplied. 7 . Insert the rodent protection grill into the uppermost bend. Ventilation Requirements • It is not necessary to have a purpose provided air vent in the room or internal Detailed recommendations for air supply space in which the appliance is installed.

  • Page 23: Hydraulic Connections (Typical System Designs)

    Hydraulic connections Heating System (typical system designs) • The Vitodens 200-W is designed for • A sealed system must only be filled by a connection to sealed central heating competent person. water systems only. Combination boiler Note The boiler incorporates an internal bypass to ensure adequate water flow.
  • Page 24 Hydraulic connections Hydraulic circuits Combination boiler Boiler Plate-type heat exchanger Heat exchanger DHW outlet Circulation pump Cold water inlet Three port diverter valve Heating circuit...
  • Page 25 Hydraulic connections System boiler using separate connections for DHW Cylinder & heating circuits (4 pipes) DHW cylinder Three port diverter valve Boiler Heating circuit Heat exchanger DHW Circuit Circulation pump Note • This hydraulic circuit must be chosen if • The flow and return pipes to the cylinder the controls are upgraded to allow for can be connected either way round, weather compensation.
  • Page 26 Hydraulic connections Weather compensated control instructions are supplied with the replacement controller and outside sensor kit. System boiler when connected to Y or S plan systems (2 pipes). DHW cylinder Three port diverter valve Boiler Heating circuit Heat exchanger DHW circuit capped off Circulation pump...

  • Page 27: Gas And Electric Supply

    Gas and electric supply Gas supply • The governor at the meter must give • The Gas Supply should be checked a constant outlet pressure of 21 mbar at the installation planning stage in +/- 1mbar when the appliance is order to establish the availability of running.

  • Page 28: Electrical Connections

    Both combination and system boilers a switched live 240V supply is required require a permanent live 240V supply. to be connected to the boiler. A Viessmann Combination boiler: Room temperature cylinder sensor is a thermistor and is control is achieved by connecting a connected directly to the boiler.

  • Page 29: Control Unit

    Constant temperature control unit Control and display elements Pressure gauge User interface Fault display (red) ON/OFF switch ON indicator (green) Reset button Heating mode The boiler water temperature will be The selected set boiler water temperature limited: will be maintained when a demand is •...
  • Page 30 (82ºC) switched on or changed over. on the primary side. DHW heating with gas fired system boilers - utilising Viessmann DHW sensor The burner, the circulation pump and the In the delivered condition, the set boiler...
  • Page 31 Constant temperature control unit Heating programmes ON/OFF Emissions test switch (only for qualified personnel) Party function Central heating time programme Information Boiler water temperature Reset Setting values Valve adjustment Boiler water temperature...

  • Page 32: Hydraulic Components

    Hydraulic components in the boiler Pump The following figure shows the pump head that is available in excess of the hydraulic resistance of the appliance. Flow rate in l/h Expansion vessel Further details are available in the current The table shows the maximum system issues of BS 5449 and BS 6798.

  • Page 33: Installation Of Boiler

    Installation of boiler Unpacking the appliance The appliance is supplied in 2 separate packages plus any optional flue packages. Check the availability and contents of each package before commencing the installation. Boiler package System boiler • Boiler (assembled) with control fitted Combi boiler •...

  • Page 34: Preparing The Connections

    Preparing the connections Note For dimensions for on-site preparations of the gas and water connections see “Overall Appliance Dimensions“ on page 9 1. Prepare the hydraulic connections. 3. Prepare gas connection to BS 6891 2. Clean and flush the heating system 4.

  • Page 35: Wall Mounting Bracket Installation

    Wall mounting bracket installation Important Before installing the appliance, check that the chosen position is suitable, adequate installation clearances are available and that the requirements for flue terminal position are satisfied.
  • Page 36 Wall mounting bracket installation (cont.)
  • Page 37 Wall mounting bracket installation (cont.) Safety lifting advice When handling or lifting the boiler body always use safe techniques - keep your back straight, bend your knees, don’t twist - move your feet, avoid bending forwards and sideways and keep the load as close to your body as possible. Always ensure that the lift weight is within your own individual capability, if in doubt seek advice.

  • Page 38: Installing The Boiler And Making Connections (Lifting Advice)

    DHW (combination boiler) Heating return Cylinder flow (system boiler) Gas connection Fill & drain valve Note For operation without DHW cylinder or for Y/S plan systems, cap off connections B and D and do not fit a Viessmann cylinder sensor.

  • Page 39: Safety Discharge Connection

    Safety discharge connection Connect a suitable discharge pipe to the pressure relief valve outlet. The pipe must discharge to a safe place and be a minimum of 15 mm copper and slope continually downwards. The pipe from the pressure relief valve must not discharge above an entrance, window or any type of public access area.

  • Page 40: Condensate Connection

    Condensate connection Connect the condensate drain and discharge correctly as detailed overleaf. Ø 22mm plastic condensate pipe Routing The condensate pipe can terminate into any one of the following areas. It is always best practice to terminate the condensate pipe via an internal waste system. •...
  • Page 41 Condensate connection (cont.) Terminating into an external waste system Ø22mm plastic condensate pipe External length of pipe 3m max. Open end direct into gully, below ground but above water level...
  • Page 42 Condensate connection (cont.) Terminating into the rainwater system Terminating into an external purpose made soakway Ø22mm plastic condensate pipe Internal soil and vent stack Ø22mm plastic condensate pipe An air break may be required External length of pipe 3m max. Open end direct into gully, below ground but above water level...

  • Page 43: Filling The Siphon With Water

    Filling the siphon with water 1. Remove retaining clip siphon 2. Fill siphon with water 3. Fit siphon and secure with retaining clip Gas connection Connect the gas supply to the gas inlet connection on the gas cock . Upon completion, tighten the union connection.

  • Page 44: Flue Outlet

    Flue outlet External wall terminal C 1. Insert pipe bend into the boiler 4. Connect external flue terminal to flue outlet. pipe bend. Install flue and supply pipes accordingly, with a minimum of 3° slope 2. Insert external flue terminal through (ca.
  • Page 45 Flue outlet (cont.) Vertical roof terminal C 1. Install the universal roof tile. 3. Push roof terminal through roof and insert into flue/supply pipe. 2. Install flue and supply pipes accordingly. 4. Seal roof terminal.

  • Page 46: Electrical Connections

    Electrical connections Opening the control unit casing...

  • Page 47: Combination Boiler

    Electrical connections Combination boiler Mains power connection 230 V ~ 50 Hz (green plug). Do not interchange the supply conductors L and the neutral conductor N. A two pole shut off switch with a contact separation of at least 3mm must be fitted in the mains supply to the boiler with a maximum fuse value of 3A.

  • Page 48: System Boiler - Separate Heating And Dhw Circuits (4 Pipes)

    (4 pipes). Where an unvented hot water cylinder is used the safety thermostat connected • The Viessmann low voltage DHW to the cylinder that controls the 2-port cylinder sensor must be used. safety valve (requirement for G3 of the building regulations) can be operated by •...

  • Page 49: System Boiler - Calling Up Code 2

    Coding Calling up code 2 Note • On weather-compensated control units, codes are displayed as plain text. • Codes that are irrelevant due to the system equipment level or the setting of other codes will not be displayed. Switch on the boiler using button page 29 and button page 31.

  • Page 50: System Boiler - Y & S Plan Systems (2 Pipes)

    Y & S Plan system (2 pipes) (Hydraulic cylinder Flow and Return connections capped off at the boiler) • Connect the required permanent live • The Viessmann low voltage DHW supply to plug 40 as combination boiler. sensor must not be fitted, this means the 3 port valve integral to the boiler •...

  • Page 51: Routing Cables And Connecting Cylinder Sensor

    Electrical connections (cont.) Routing the connecting cables Note If connecting cables touch hot components they will be damaged. When routing and securing connecting cables on site, ensure that the maximum permissible cable temperatures are not exceeded. Low voltage connections Cable grommet for power supply 230 V mains connections Plugs for connecting the DHW cylinder temperature sensor to...
  • Page 52 Closing the control unit casing...

  • Page 53: Filling The Heating System

    Note • Soften fill water harder than 3.0 mol/m e.g. using a small softening system for Unsuitable fill water increases the heating water (see Viessmann Vitoset level of deposits and corrosion price list). and may lead to boiler damage. •...

  • Page 54: Venting The Boiler

    Further details regarding individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the heating 3. Open valves and vent at water side. main pressure until no sound of escaping air can be heard. 2. Connect the drain hose between top valve and a drain outlet.
  • Page 55 Venting Venting program During the venting program, the circulation The venting program is activated pump will be alternately switched ON and via code “2F:1” page 49. The program OFF for 30 s respectively over a period of is automatically disabled after 20 min 20 min.

  • Page 56: Checking Diaphragm Expansion Vessel And System Pressure

    Checking diaphragm expansion vessel and system pressure Note 2. If the inlet pressure of the expansion vessel is lower than the pre-charge Carry out this test on a cold system. pressure of 6.75 bar, top up until the 1. Drain the system, or close the cap valve inlet pressure is raised to 6.75 bar.

  • Page 57: Gas Type Conversion (Lpg)

    Gas supply Gas type conversion (only for operation with LPG) 1. Set the adjusting screw at the gas train to “2” . 2. Switch On the system ON/OFF 3. Adjust the gas type in coding address “82” (for a detailed description of the individual steps, see Service Instructions.

  • Page 58: Checking The Static And Supply Pressure

    Gas supply Checking the static and supply pressure When installing, commissioning or servicing a gas appliance that incorporates a pre-mix burner and zero-set governor, because it is not possible to measure an operating pressure the engineer should first check that the gas supply is metered and ascertain whether it is possible to measure the gas rate.
  • Page 59 Gas supply 6. Check the working pressure. Set values: • natural gas 20 mbar • LPG 37 mbar Note Use suitable test equipment with a resolution of at least 0.1 mbar to measure the supply pressure. 7 . Record the actual value in the service report.

  • Page 60: Setting Maximum Output

    Setting the maximum CH output Note You can limit the maximum output for heating operation. The limit is set via the modulation range. The max. adjustable heating output is limited by the boiler coding card. 1. Start the boiler 4. Confirm the set value with 2.

  • Page 61: Checking The Balanced Flue System For Soundness

    Escaping gas leads to a risk of explosions. Check gas equipment for soundness. Flue gas emission test The Vitodens 200-W is fitted with a If the boiler is not working correctly, Lambda-Pro control. The electronic check the CO2 values are in-line with the...
  • Page 62 Combustion If the actual CO or O values lie outside their respective ranges, proceed with the following steps: • Check the balanced flue system for soundness, see page 66 • Check the ionisation electrode and connecting lead, see service instructions. •...

  • Page 63: Heating System Start Up

    Heating system start-up Check the heating system pressure on the pressure gauge (A). The system pressure is too low if the needle indicates below 0.8 bar. Switch ON the mains power supply e.g. at a separate fuse or a mains electrical isolator.
  • Page 64 Starting a heating circuit and DHW heating/loading Press Central heating and DHW • Central heating active • DHW will be loaded (subject to a DHW cylinder or combination boiler being installed) • Frost protection for the boiler and the DHW cylinder is active Starting DHW only Press Only DHW:...

  • Page 65: Setting The Dhw Temperature

    Switching the comfort function ON and OFF Only for use with the combination boiler. The boiler is maintained at a standby temperature when the comfort function is switched ON. Hot water will then be available instantly. Note The comfort function can be switched OFF with .

  • Page 66: Adjusting The Boiler Water Temperature

    Adjusting the boiler water temperature If a remote control unit is connected: Set the room temperature on the remote control unit. Set the boiler water temperature high enough to be able to achieve the required room temperature. Press the following keys: to set the required for “Set boiler water temperature.

  • Page 67: Scanning Information

    Scanning information Subject to connected components, you can scan current temperatures and operating conditions. Press the following keys: for additional scans For boiler water temperature to end scanning °C - Display indication Explanation Notes 20ºC Outside temperature Display only if an outside temperature sensor is connected 65ºC Boiler water...

  • Page 68: Function Sequence And Possible Faults

    Function sequence and possible faults Display screen Measures Control unit issues Increase set value heat demand and ensure heat is drawn off Fan starts after approx. 51 s Check the fan, Fault F9 fan connecting cables, power at the fan and fan control Ignition Fault F4...
  • Page 69 Function sequence and possible faults (cont.) Burner in operation Stops below the Check the flue gas set boiler water system for temperature and soundness (flue restarts immediately gas recirculation), check the gas flow pressure Automatic Fault Eb Check the calibration of the connecting cable combustion control and the ionisation...

  • Page 70: Fitting The Outer Case

    Fitting the outer case Note Always insert the locking screws before commencing operation.

  • Page 73: Declaration Of Conformity

    This product meets the requirements of the Efficiency Directive (92/42/EEC) for condensing boilers. The product characteristics determined as system values for the product Vitodens 200-W as part of EC type testing according to the Efficiency Directive (see specification table) can be utilised to assess the energy consumption of heating and ventilation equipment to DIN V 4701-10 which is specified by the EnEV (Germany).
  • Page 74 Manufacturer’s certificate according to the 1st BlmSchV (Germany) We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the product Vitodens 200-W complies with the NOx limits specified by the BlmSchV paragraph 7 (2) (Germany). Allendorf, 1 December 2006 Viessmann Werke GmbH&Co KG...

  • Page 76: Applicability

    7248 826 7 00001… 7248 829 7 00001… 8.8 to 35.0 kW from serial no 7248 828 7 00001… Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford, TF1 7YP , GB Tel: +49 6452 70-0 Tel: +44 (0)1952 675000...

This manual is also suitable for:

Vitodens 200-w wb2b-19Vitodens 200-w wb2b-26Vitodens 200-w wb2b-30Vitodens 200-w wb2b-35

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