Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual
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Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual

Wall mounted gas condensing boiler
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VIESMANN
Installation and service instructions
for contractors
Vitodens 200-W
Type B2HE, B2KE, 1.9 to 32 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
VITODENS 200-W
Please keep safe.
6131235 GB
6/2019

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Summary of Contents for Viessmann Vitodens 200-W B2HE

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 200-W Type B2HE, B2KE, 1.9 to 32 kW Wall mounted gas condensing boiler Natural gas and LPG version VITODENS 200-W Please keep safe. 6131235 GB 6/2019...
  • Page 2 Never touch hot surfaces on the boiler, burner, lidate our warranty. ■ flue system or pipework. For replacements, use only original spare parts supplied or approved by Viessmann. Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing work, touch earthed objects such as heating or water pipes to dis- charge static loads.
  • Page 3 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Flue systems and combustion air Danger Ensure that flue systems are clear and cannot be Escaping gas can lead to explosions which may sealed, for instance due to accumulation of conden- result in serious injury.

  • Page 4: Table Of Contents

    Index Index 1. Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Vitodens 200-W, type B2HE, B2KE ............ ■ System examples .................. Spare parts lists ..................2. Preparing for installation ........................ 3. Installation sequence Mounting the boiler and making connections ........11 Removing the front panel ..............
  • Page 5 Index Index (cont.) 7. Troubleshooting Fault display on the programming unit ........... 77 Fault display on the programming unit ..........77 ■ Overview of electronics module ............. 79 Fault messages ..................79 Repairs ....................97 Shutting down the boiler ..............97 ■...
  • Page 6 Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Symbols The steps in connection with commissioning, inspec- Symbol Meaning tion and maintenance are found in the "Commission- Reference to other document containing ing, inspection and maintenance" section and identified further information as follows: Step in a diagram:...
  • Page 7 Detailed information on system examples can be found tion diagrams and function descriptions are available at: www.viessmann-schemes.com to help setting up the heating system. Spare parts lists Information about spare parts can be found on the Viessmann spare parts app.
  • Page 8 Preparing for installation Preparing for installation Ø 96 -0.5 Ø 60.5 +0.8 Fig. 2 Illustration shows a gas condensing combi boiler Condensate drain Heating return Heating flow Filling/draining DHW (gas condensing combi boiler) Dimension for installation with DHW cylinder below Cylinder flow (gas condensing system boiler) the boiler Gas connection...
  • Page 9 Preparing for installation Preparing for installation (cont.) Note 3. Prepare the gas connection according to TRGI or This boiler (IP rating: IP X4) is approved for installation TRF [or local regulations]. in wet rooms inside safety zone 1, to DIN VDE 0100. Exposure to jets of water must be prevented.
  • Page 10 Preparing for installation Preparing for installation (cont.) Connection on the DHW side for gas condensing combi boiler Cold water installation Safety assembly to DIN 1988 and EN 806 is required if it is possible that the mains water supply pressure will exceed 10 bar (1.0 MPa), and no DHW pressure reducing valve is installed (to DIN 4753).

  • Page 11: Mounting The Boiler And Making Connections

    Installation sequence Mounting the boiler and making connections Removing the front panel Fig. 4 1. Unlock the front panel on the underside (push in), 2. Swivel the front panel forwards slightly and lift using a screwdriver or similar tool. away upwards. Note Do not remove protective caps from connections on the heating water side and from the gas con-...
  • Page 12 Installation sequence Mounting the boiler and making connections (cont.) Fig. 5 Note 2. Replace gaskets. The diagram shows installation on a pre-plumbing jig for a gas condensing combi boiler. Internal gasket diameter: ■ Gas connection Ø 18.5 mm The boiler can be installed on the following accesso- Connections on the heating water side Ø...

  • Page 13: Fitting The Boiler To The Wall Mounting Bracket

    Installation sequence Mounting the boiler and making connections (cont.) 4. Note 6. 6. Tighten locking ring fittings so that they form a Only remove the clip under the gas pipe union nut tight seal. once the appliance has been installed. Clip is no One turn beyond finger-tight.
  • Page 14 Installation sequence Mounting the boiler and making connections (cont.) Fig. 6 1. Pull off the protective caps. 4. Note Only remove the clip under the gas pipe union nut 2. Replace gaskets. Fit valves and gas shut-off valve. once the appliance has been installed. Clip is no longer required.

  • Page 15: Fitting The Programming Unit Mounting Bracket On The Top Of The Boiler

    Installation sequence Mounting the boiler and making connections (cont.) Fitting the programming unit mounting bracket on the top of the boiler In the delivered condition, the programming unit is located on the underside of the boiler. If required for ease of operation, the programming unit can be loca- ted on the top of the boiler.

  • Page 16: Connections On The Heating Water And Dhw Sides

    Installation sequence Mounting the boiler and making connections (cont.) 1. Remove the hinges and store them in case they 6. Turn the bracket over and insert the plug on the need to be reinstalled at a later date. right-hand side again. 4.

  • Page 17: Condensate Connection

    Flue gas connection Note Connecting the balanced flue pipe The "System certification" and "Skoberne GmbH flue Flue system installation instructions system" labels enclosed with the technical documenta- tion may only be used in conjunction with the Viessmann flue system made by Skoberne.
  • Page 18 Installation sequence Flue gas connection (cont.) Connecting several Vitodens to a shared flue sys- Do not carry out commissioning until the following conditions are met: ■ Free passage through the flue gas pipes. If connecting several Vitodens to a shared flue system, ■...

  • Page 19: Gas Connection

    Installation sequence Gas connection Fig. 12 1. If the gas connection has not been fitted previ- 2. Check for leaks. ously, seal gas shut-off valve to the gas con- nection. Danger When carrying out any work on gas connection fit- Escaping gas leads to a risk of explosion.

  • Page 20: Electrical Connections

    Installation sequence Electrical connections Opening the wiring chamber Note If only PlusBus, the outside temperature sensor and the cylinder temperature sensor are connected to the heat generator, the wiring chamber does not need to be opened. 5. 2x Fig. 13 Note Please note Steps 1 to 3 are required only if the programming unit...

  • Page 21: Layout Of The Electrical Connections

    Installation sequence Electrical connections (cont.) Layout of the electrical connections Note For further information on the connections, see the fol- lowing chapters. 6 5 4 3 2 1 6 5 4 3 2 1 Fig. 14 Connections to 230 V~ plugs Connections to extra low voltage (ELV) plugs Power supply Outside temperature sensor...

  • Page 22: On-Site Connections On Hmu Heat Management Unit

    Installation sequence Electrical connections (cont.) On-site connections on HMU heat management unit Fig. 15 Diaphragm grommets, 230 V cables Plug-in connection on underside of appliance Diaphragm grommets, extra low voltage (ELV) Plug for connecting sensors and PlusBus Remove plug from the pack of installation compo- nents.

  • Page 23: Connecting The Cylinder Temperature Sensor

    Installation sequence Electrical connections (cont.) Connecting the cylinder temperature sensor Connect the cylinder temperature sensor to terminals 3 Remove existing plugs from the sensor and fit the wire ferrules. and 4 on external plug . See page 21. Connecting the circulation pump to P1 and P2 Note Possible connections to P2 and priority of connections: Observe the priority of the connections.

  • Page 24: Information On Connecting Plusbus Subscribers

    Installation sequence Electrical connections (cont.) Information on connecting PlusBus subscribers Only the following PlusBus subscribers can be connec- 1 x EM-S1 extension (ADIO or SDIO/SM1A electron- ■ ted to the control: ics module) ■ 2 x EM-M1 or EM-MX extensions (ADIO electronics ■...
  • Page 25 Installation sequence Electrical connections (cont.) Power supply and PlusBus connection of accessories Power supply of all accessories at the HMU heat management unit Fig. 21 Some accessories with direct power supply Fig. 22 HMU heat management unit, heat generator ON/OFF switch Mixer extension kit (ADIO electronics module) Mains input fÖ...

  • Page 26: Power Supply Fö

    Installation sequence Electrical connections (cont.) Power supply fÖ Danger If the power supply to the appliance is connected ■ Incorrectly executed electrical installations can with a flexible cable, ensure that the live conductors result in injuries from electrical current and dam- are pulled taut before the earth conductor in the age to the appliance.

  • Page 27: Wifi Operational Reliability And System Requirements

    Installation sequence Electrical connections (cont.) Fig. 23 Bundle cables using the supplied cable clips. Route extra low voltage (ELV) leads < 42 V separately from cables 42 V/230 V~. > Secure the cable clips on the underside using the sup- plied screws.

  • Page 28: Wireless Signal Range Of Wifi Connection

    Installation sequence WiFi operational reliability and system… (cont.) Wireless signal range of WiFi connection The range of wireless signals may be reduced by Install the heat generator as close as possible to the walls, ceilings and interior fixtures. These weaken the WiFi router to ensure a good WiFi connection.

  • Page 29: Closing The Wiring Chamber

    Installation sequence Closing the wiring chamber 2. 2x Fig. 26...

  • Page 30: Fitting The Programming Unit And Front Panel

    Installation sequence Fitting the programming unit and front panel Programming unit located at the bottom Fig. 27 Lightguide at the top...

  • Page 31: Programming Unit Located At The Top

    Installation sequence Fitting the programming unit and front panel (cont.) Programming unit located at the top Fig. 28 1. Install the mounting panel for the programming unit 3. Turn Lightguide around and clip it into place at at the top. See page 15. the bottom of the programming unit.

  • Page 32: Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Commissioning the system with the commissioning assistant........33 • • 2. Filling the heating system....................36 • 3. Topping up the heating water................... 38 •...

  • Page 33: Commissioning The System With The Commissioning Assistant

    Commissioning, inspection, maintenance Commissioning the system with the commissioning assistant Please note Only commission the appliance with a fully filled trap. Check that the trap has been filled with water. Commissioning assistant 1. Open the gas shut-off valve. 3. Commission the heat generator and follow the commissioning assistant.
  • Page 34 Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Commissioning assistant Explanations and references sequence Filling and venting See chapters "Filling the heating system" and "Venting the heating system". Filling ■ Venting ■ Gas type If operating with LPG, switch to "LPG" Flue system Single connection Only one heat generator is connected to the flue system (factory setting).
  • Page 35 Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Commissioning assistant Explanations and references sequence Buffer cylinder, heating System with heating water buffer cylinder, without DHW heating ■ only DHW heating upstream DHW heating with e.g. separate DHW cylinder connected upstream of the ■...

  • Page 36: Filling The Heating System

    Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Switching WiFi ON/OFF Affix a further credentials label to the place marked on the type plate. The system can be remotely controlled via the internet using an app. To do this, establish a connection to the Calling up the commissioning assistant at a later router.
  • Page 37 Commissioning, inspection, maintenance Filling the heating system (cont.) Fig. 30 ON/OFF switch 1. Check the pre-charge pressure of the expansion 5. Fit hose to air vent valve . Route the hose into a vessel. suitable container or drain outlet. 2. Close gas shut-off valve 6.

  • Page 38: Topping Up The Heating Water

    Commissioning, inspection, maintenance Topping up the heating water Fig. 31 For gas condensing combi boilers only: If necessary, top up the heating water at top-up valve Checking all connections on the heating water and DHW sides for leaks Danger Risk of electric shock from escaping heating water or DHW.

  • Page 39: Checking The Gas Type

    Commissioning, inspection, maintenance Venting the heating system (cont.) 3. OK 7. OK The venting function is activated. The display 4. Use to select "Commissioning assistant". shows the system pressure. The venting function ends automatically after 5. OK 20 min or when you tap OK. for "Next"...

  • Page 40: Removing The Front Panel

    Commissioning, inspection, maintenance Removing the front panel Fig. 32...

  • Page 41: Moving The Programming Unit To The Service Position

    Commissioning, inspection, maintenance Moving the programming unit to the service position To facilitate certain maintenance tasks, move the pro- gramming unit up or down, depending where it is loca- ted. 2. 2. Fig. 33 Do not disconnect the plug from the mounting panel. Do not alter where and how the cable is secured (fixing point of the cable tie).
  • Page 42 Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) 01. Turn off the ON/OFF switch. 02. Close the gas shut-off valve. 03. Undo screw inside test connector on the gas train, but do not remove it. Connect the pressure gauge.

  • Page 43: Function Sequence And Possible Faults

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) Supply pressure (flow pressure) Measures For natural gas For LPG E, E+, M L, LL, S, K Below 13 mbar Below Below Below Below Do not start the boiler. Notify (1.3 kPa) 17 mbar 18 mbar...

  • Page 44: Setting The Max. Heating Output

    Commissioning, inspection, maintenance Function sequence and possible faults (cont.) Burner in operation Shuts down below the set Check the flue system for boiler water temperature and tightness (flue gas recircula- restarts immediately. tion). Check gas flow pres- sure. Automatic calibration of Fault F.62, F.373 Ensure adequate heat trans- the combustion controller...
  • Page 45 Commissioning, inspection, maintenance Adjusting the pump rate of the integral… (cont.) In the delivered condition, the minimum pump rate ■ and the maximum pump rate are set to the following values: Rated heating output Speed settings in the in kW delivered condition in % Min.

  • Page 46: Activating Screed Drying

    Commissioning, inspection, maintenance Adjusting the pump rate of the integral… (cont.) Gas condensing combi boiler 32 kW 550 55 500 50 450 45 350 35 250 25 150 15 1000 1100 1200 Flow rate in l/h Fig. 37 Upper operational limit Curve Pump rate, circulation pump 10 %...

  • Page 47: Tightness Test On Balanced Flue System (Annular Gap Check)

    Commissioning, inspection, maintenance Tightness test on balanced flue system (annular gap check) Fig. 38 Combustion air aperture For balanced flue systems tested together with the If actual CO values are greater or O values are lower, heat generator, there is no requirement for a tightness then pressure test the flue pipe with a static pressure test (overpressure test) during commissioning by the of 200 Pa.
  • Page 48 Commissioning, inspection, maintenance Removing the burner (cont.) Fig. 39 1. Turn off the ON/OFF switch. 4. Undo gas supply pipe fitting 2. Close the gas shut-off valve and safeguard against 5. Undo four screws and remove the burner. reopening. Note 3.

  • Page 49: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Checking the burner gasket and burner gauze assembly Fig. 40 Check burner gauze assembly , electrodes 6. Insert thermal insulation ring and burner gauze gasket for damage. Only remove and replace com- assembly with gasket . Observe correct ponents if they are damaged or worn.

  • Page 50: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Checking and adjusting the ignition and ionisation electrodes ±0.5 Fig. 41 Ignition electrodes Ionisation electrode 1. Check the electrodes for wear and contamination. 3. Check the electrode gaps. If the gaps are not as specified or the electrodes are damaged, replace 2.

  • Page 51: Cleaning The Heating Surfaces

    Commissioning, inspection, maintenance Cleaning the heating surfaces Please note Scratches to the surfaces of the heat exchanger that come into contact with hot gas can result in corrosion damage. Brushing can cause deposits to become lodged in the gaps between the coils. Never use brushes to clean the heating sur- faces.
  • Page 52 Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) Fig. 44 1. Move the bracket together with the programming 8. Refit supply hose. unit upwards. See "Moving the programming unit to the maintenance position". Danger Risk of electric shock from escaping conden- 2.

  • Page 53: Installing The Burner

    Commissioning, inspection, maintenance Installing the burner Fig. 45 1. If necessary, move the programming unit. 5. Connect the cables/leads: ■ Fan motor (2 plugs) 2. Insert the burner. Tighten screws diagonally. ■ Ionisation electrode Torque: 6.5 Nm Ignition unit ■ ■...

  • Page 54: Checking The Flow Limiter (Only For Gas Condensing Combi Boiler)

    Commissioning, inspection, maintenance Checking the flow limiter (only for gas condensing combi boiler) 1. Drain the boiler on the DHW side. 2. Remove the spring clip. 3. Remove the flow sensor. 4. Check flow limiter . Replace in case of exces- sive scaling or damage.

  • Page 55: Checking The Electrical Connections For Firm Seating 28. Checking All Gas Equipment For Tightness At Operating Pressure

    Commissioning, inspection, maintenance Checking the safety valve function Checking the electrical connections for firm seating Checking all gas equipment for tightness at operating pressure Danger Note Escaping gas leads to a risk of explosion. Only use suitable and approved leak detection agents Check gas equipment (including inside the appli- (EN 14291) and devices for the tightness test.
  • Page 56 Commissioning, inspection, maintenance Checking the combustion quality (cont.) Note During commissioning, the combustion controller car- ries out an automatic calibration. Allow approx. 50 s after the burner has started before testing the emis- sions. Fig. 47 1. Connect a flue gas analyser at flue gas port 6.

  • Page 57: Checking The Flue System For Unrestricted Flow And Leaks

    Commissioning, inspection, maintenance Checking the flue system for unrestricted flow and leaks Checking the external LPG safety valve (if installed) Matching the control unit to the heating system The control unit must be matched to the system equip- Accessories installation and service instructions ment level.
  • Page 58 Commissioning, inspection, maintenance Instructing the system user (cont.) DHW hygiene For optimum DHW hygiene, avoid DHW temperatures To activate the function, see the operating instructions. that are < 50 °C. For larger systems and systems with Inform the system user what DHW temperatures low water exchange, the temperature should not drop should be set and the risks associated with having a below <...

  • Page 59: Calling Up Parameters

    System configuration (parameters) Calling up parameters Parameters are split into the following groups: 2. Use to select "System configuration". ■ – "General" – "Boiler" 3. OK – "DHW" (domestic hot water) – "Heating circuit 1/2/3" 4. Use to select the required group. "Solar"...
  • Page 60 System configuration (parameters) General (cont.) 897.0 "Screed drying" Setting Explanations Not active Screed drying can be set in accordance with selecta- ble temperature/time profiles. For individual profile curves, see chapter "Function description". Diagram 1 Diagram 2 Diagram 3 Diagram 4 Diagram 5 Diagram 6 912.0 "Automatic summer/wintertime changeover"...

  • Page 61: Boiler

    System configuration (parameters) General (cont.) 1098.5 "Calorific value" Setting Explanations Value is provided on the gas supplier's bill. Used for gas consumption data. 10.0000 5.0000 to Calorific value adjustable from 5.0000 to 40.0000 40.0000 kWh/m in increments of 0.0001 1139.0 "Outside temperature limit for cancelling reduced set room temperature" Setting Explanations Temperature limit for cancelling reduced set room...
  • Page 62 System configuration (parameters) Boiler (cont.) 522.3 "Interval until the next service" Setting Explanations Interval until the next service No interval selected 3 months 6 months 12 months 18 months 24 months 596.0 "Maximum heating output" Setting Explanations A limit can be set on the maximum heating output for heating mode.

  • Page 63: Dhw (Domestic Hot Water)

    System configuration (parameters) Boiler (cont.) 1606.0 "Minimum burner pause time" Setting Explanations The minimum burner pause time can be set subject to boiler load. Delivered condition, fixed setting for minimum burner pause time Integral method 1606.4 "Integral threshold for burner switch-off" Setting Explanations Only effective if parameter 1606.0 has been set to 1.
  • Page 64 System configuration (parameters) DHW (domestic hot water) (cont.) 534.0 "Circulation pump run-on" Setting Explanations Circulation pump run-on after cylinder heating 120 s Delivered condition 120 s run-on 0 to 900 Run-on time adjustable from 0 to 900 s in 60 s incre- ments 1085.0 "Cylinder heating: Set start point"...

  • Page 65: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3

    System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating circuit 3 Note Parameter values in bold are factory settings. 424.3 "Set flow temperature increased when switching from operation with reduced room temperature to operation with standard/comfort room temperature, heating circuit 1" Setting Explanations Set flow temperature increased when changing from...
  • Page 66 System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating… (cont.) 428.4 "Duration for set flow temperature increase, heating circuit 3" Setting Explanations Duration for set flow temperature increase See also chapter "Function description" 60 min Delivered condition 60 min 0 to 120 Temperature rise adjustable from 0 to 120 min 933.3 "Priority, DHW heating, heating circuit 1"...
  • Page 67 System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating… (cont.) 934.6 "Operating mode, heating circuit 2" Setting Explanations See also parameter 934.7 Heating mode: Weather-compensated without room tem- Weather-compensated without room temperature in- perature hook-up fluence Weather-compensated with room tempera- Weather-compensated with room temperature influ- ture hook-up ence...
  • Page 68 System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating… (cont.) 935.7 "Room influence factor, heating circuit 3" Setting Explanations The higher the value, the greater the influence of the room temperature on the set flow temperature of the heating circuit (heating curve). Operation with room temperature hook-up must be set for the heating cir- cuit (parameter 935.6).
  • Page 69 System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating… (cont.) 1193.1 "Maximum flow temperature limit, heating circuit 2" Setting Explanations Maximum flow temperature limit for the heating circuit 74 °C Maximum limit in the delivered condition 74 °C 10 to 100 Setting range limited by heat generator-specific pa- rameters 1194.0 "Minimum flow temperature limit, heating circuit 3"...

  • Page 70: Solar

    System configuration (parameters) Heating circuit 1, Heating circuit 2, Heating… (cont.) 1397.1 "Heating limit: Economy function, outside temperature, heating circuit 3" Setting Explanations Heating circuit pump logic function (summer economy control): Heating circuit pump switches off when out- side temperature 1 K above selected value. Heating circuit pump switches back on when outside tempera- ture 1 K below selected value.
  • Page 71 Setting Explanations Setting is required for calculating the solar yield Calculation of solar yield with water as heat transfer medium Calculation of solar yield with Viessmann heat transfer medium 1394.0 "DHW set temperature for reheating suppression" Setting Explanations 40 °C DHW set temperature for reheating suppression.

  • Page 72: Subscriber Numbers Of Connected Extensions

    System configuration (parameters) Solar (cont.) 1598.0 "Start temperature for thermostat function" Setting Explanations 50 °C Only in conjunction with SDIO/SM1A electronics mod- 0 to 100 Set start temperature adjustable from 0 to 100 °C 1598.1 "Stop temperature for thermostat function" Setting Explanations 40 °C...
  • Page 73 System configuration (parameters) Subscriber numbers of connected extensions (cont.) Function Electronics mod- Extension Setting Rotary switch S1 System with solar collectors ADIO EM-S1 Heating circuit 2 with mixer ADIO EM-M1/EM-MX Heating circuit 3 with mixer ADIO EM-M1/EM-MX Heating circuit 1 without mixer (circulation ADIO EM-P1 pump downstream of low loss header)

  • Page 74: Service Menu

    Diagnosis and service checks Service menu Calling up the service menu Tap the following buttons: Note Tap " " to return to "Service, main menu" and OK – press simultaneously for approx. 4 s, then release. 2. Select the required menu section. Note Not all menu areas will be available, depending on the system equipment level.

  • Page 75: Checking Outputs (Actuator Test)

    Diagnosis and service checks Diagnosis (cont.) Note 2. Use to select "Diagnosis". If a called up sensor is faulty, "- - -" appears on the display. 3. OK Calling up operating data 4. Use to select the required group. Tap the following buttons: 5.
  • Page 76 Diagnosis and service checks Checking outputs (actuator test) (cont.) Display Explanation Heating circuit pump 2 Set value Speed, heating circuit pump, heating circuit 2 with mixer in % speed Heating circuit pump 3 Set value Speed, heating circuit pump, heating circuit 3 with mixer in % speed Mixer, heating circuit 2 Open...

  • Page 77: Troubleshooting Fault Display On The Programming Unit

    Troubleshooting Fault display on the programming unit Fault display on the programming unit If there is a fault, the display shows "Burner fault" or Note "Active messages". Any connected central fault message facility is switched off. Note If an acknowledged fault is not remedied, the fault If a central fault message facility is connected, this is message will be redisplayed the following day at switched on.
  • Page 78 Troubleshooting Fault display on the programming unit (cont.) Calling up fault messages from the fault memory 5. OK (message history) for the required message The 10 most recent faults (including those remedied) and service messages are saved and can be called 7.

  • Page 79: Overview Of Electronics Module

    Troubleshooting Overview of electronics module Fig. 49 BCU burner control unit HMU heat management unit HMI programming unit with RF module Fault messages Fault number System characteristics Cause Measures on the display No DHW heating Lead break, cylinder tem- Check cylinder temperature sen- perature sensor sor.
  • Page 80 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.14 Regulates as if the outside Short circuit, outside tem- Check outside temperature sensor. temperature were 0 °C. perature sensor See page 99. F.15 No solar DHW heating or Lead break, cylinder tem- Check cylinder temperature sensor central heating backup...
  • Page 81 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.65 Burner starts again Flame signal is not Check gas supply (gas pressure present or insufficient at and gas flow switch). Check the burner start. gas train and connecting cables. Check system for condensate backup.
  • Page 82 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.74 Burner blocked. System pressure too low Top up with water. Internal circulation pump off. No central heating and no DHW heating. F.77 Burner in a fault state Data memory burner con- Check software version.
  • Page 83 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.163 Burner in a fault state Memory access checksum Turn the appliance off and on error again. Reset device. F.182 No DHW heating Short circuit, outlet tem- Check outlet temperature sensor perature sensor (see page 99).
  • Page 84 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.352 Burner in a fault state CO limit within appliance Check entire flue gas path for the exceeded following: Flue gas recirculation ■ Leaks ■ Flue gas back pressure caused ■...
  • Page 85 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.359 Burner in a fault state No ignition spark Check connection cables and leads from ignition module and ig- nition electrode. Check for a voltage of 230 V at the ignition module during the ignition phase.
  • Page 86 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.371 Burner in a fault state Fan speed too low Check the fan. Check the fan connecting cables. Check the fan power supply. Reset device. F.372 Burner in a fault state Repeated flame loss dur- Check ionisation electrode and ing calibration...
  • Page 87 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.375 Burner in a fault state Performing ionisation cur- Check ionisation electrode and rent calibration: Calibra- connecting cable. Check plug-in tion not performed. Mini- connections for loose contacts. mum value or termination Check flue system;...
  • Page 88 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.377 Burner in a fault state Post-processing ionisation Check ionisation electrode and current calibration: Stabili- connecting cable. Check plug-in sation conditions for post- connections for loose contacts. calibration not reached Check flue system;...
  • Page 89 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.380 Burner in a fault state Flame is lost immediately Check gas supply (gas pressure after flame formation (dur- and gas flow switch). ing safety time). Check balanced flue system for flue gas recirculation.
  • Page 90 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.400 Burner in a fault state Lead break, ionisation Check ionisation electrode and voltage, signal 1 connecting cable. Reset device. F.401 Burner in a fault state Short circuit, ionisation Check ionisation electrode and voltage, signal 2 connecting cable.
  • Page 91 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.430 Connection of automation Communication error, Check gateway module connecting modules not possible gateway cable and power supply. F.432 Burner blocked if fault occurs Short circuit, fan speed Check ventilation air supply;...
  • Page 92 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.454 Burner in a fault state Incorrect software version Flash the correct software version for the BCU burner control unit. F.455 Burner in a fault state Error in logical program Reset device.
  • Page 93 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.464 Burner in a fault state Ionisation current too low Check ionisation electrode and during calibration. Differ- connecting cable. Check plug-in ence compared to previ- connections for loose contacts. ous value not plausible.
  • Page 94 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.468 Burner in a fault state Ionisation current too high Check gap between ionisation during calibration electrode and burner gauze as- sembly. See page 50. Check whether there is a lot of dust in the ventilation air (e.g.
  • Page 95 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.542 Mixer closes. Heating circuit Lead break, flow tempera- Check flow temperature sensor pump is operational. ture sensor, heating circuit TS1 on extension kit mixer (ADIO 1 with mixer electronics module).
  • Page 96 Troubleshooting Fault messages (cont.) Fault number System characteristics Cause Measures on the display F.581 Control mode without room Lead break, room temper- Check external room temperature influence ature sensor, heating cir- sensor for heating circuit or room cuit 3 temperature sensor for remote control unit.

  • Page 97: Repairs

    Troubleshooting Repairs Please note Residual water will escape when the boiler or one of the following components is fitted or removed: ■ Water-filled pipework Heat exchanger ■ Circulation pumps ■ Plate heat exchanger ■ ■ Components fitted in the heating water or DHW circuit.

  • Page 98: Removing The Boiler From The Pre-Plumbing Jig Or Mounting Frame

    Troubleshooting Repairs (cont.) Removing the boiler from the pre-plumbing jig or mounting frame Fig. 50 Note Note Use new gaskets and, if required, new locking ring When carrying out any work on gas connection fittings, connections when assembling. counterhold with a suitable tool. Never transfer any forces to the internal components.

  • Page 99: Checking The Temperature Sensors

    Troubleshooting Repairs (cont.) Checking the temperature sensors 6 5 4 3 2 1 6 5 4 3 2 1 Fig. 51 Heat generator circuit flow temperature sensor 3. Check the sensor resistance. Note position of (dual sensor) guide lug ■ Sensor 1: Connections 1 and 3 1.
  • Page 100 Troubleshooting Repairs (cont.) Cylinder temperature sensor/outlet temperature Flue gas temperature sensor sensor 1. Check the lead and plug of flue gas temperature 1. Check lead and plug of cylinder temperature sen- sensor or outlet temperature sensor 2. Disconnect leads, flue gas temperature sensor 2.
  • Page 101 Troubleshooting Repairs (cont.) Flue gas temperature sensor Outside temperature sensor ■ ■ Flow temperature sensor ■ Cylinder temperature sensor ■ Outlet temperature sensor ■ Temperature sensor, low loss header ■ -20 -10 0 10 20 10 30 50 70 90 110 Temperature in °C Temperature in °C Sensor type: NTC 10 k...

  • Page 102: Information On Replacing The Hmu Heat Management Unit And Bcu Burner Control Unit

    "www.service-assistent.info" software tool. Replacing the power cable When replacing the power cable, only use the power cable available as a spare part from Viessmann. Replacing the HMI connecting cable Please note Incorrect routing of the cable can lead to heat damage and impairment of the EMC properties.

  • Page 103: Checking The Plate Heat Exchanger

    Troubleshooting Repairs (cont.) Checking the plate heat exchanger 8. 4. Fig. 55 Heating water flow Cold water Heating water return 1. Shut off and drain the boiler on the heating water 7. Install plate heat exchanger in reverse order using and DHW sides.

  • Page 104: Removing The Hydraulic Unit

    Troubleshooting Repairs (cont.) Removing the hydraulic unit In case hydraulic unit components have to be replaced. Danger Risk of electric shock from escaping heating water or DHW. After installation, check all connections on the water side for leaks.
  • Page 105 Troubleshooting Repairs (cont.) Fig. 56...

  • Page 106: Checking The Fuse

    Troubleshooting Repairs (cont.) Checking the fuse Fig. 57 1. Turn off the ON/OFF switch. 5. Check fuse F1 (see connection and wiring dia- gram). 2. Depending on the configuration: Move program- ming unit together with bracket to service position. Danger Incorrect or improperly fitted fuses can lead 3.

  • Page 107: Function Description Appliance Functions

    Function description Appliance functions Heating mode Weather-compensated operation: Heating circuit pump connection for heating circuit ■ The rooms are heated in accordance with the room without mixer temperature and time program settings. The control unit determines a set flow temperature Only for systems with several heating circuits.
  • Page 108 Function description Appliance functions (cont.) Note If heating circuits with mixer are present in the heating system: The flow temperature of the heat generator is one differential temperature higher than the flow tem- perature for the heating circuits with mixer. Differential temperature in delivered condition set to 8 K.

  • Page 109: Screed Drying

    Function description Appliance functions (cont.) Reduced room temperature Raising the flow temperature of the heating cir- cuits during operation with room temperature hook-up The higher the value, the greater the influence of the room temperature on the set flow temperature of the heating circuit.
  • Page 110 Function description Appliance functions (cont.) Note Note During screed drying, DHW heating is not available. Temperature profile 6 ends after 21 days. Observe EN 1264. The report to be provided by the The function continues after a power failure or after the heating contractor must contain the following details control unit has been switched off.

  • Page 111: Raising The Reduced Room Temperature

    Function description Appliance functions (cont.) Temperature profile 5 Days Fig. 66 Temperature profile 6 Days Fig. 67 Ends after 21 days. Raising the reduced room temperature During operation at reduced room temperature, the The outside temperature limits for the start and end of reduced set room temperature can be automatically temperature raising can be set in parameters 1139.0 raised subject to the outside temperature.
  • Page 112 Function description Appliance functions (cont.) Example using the settings in the delivered condition Outside temperature in °C Fig. 68 Heating curve for operation at standard room tem- perature or comfort room temperature Heating curve for operation at reduced room tem- perature Reducing the heat-up time The value and duration of the additional increase in the...

  • Page 113: Dhw Heating

    Function description Appliance functions (cont.) Example Time Fig. 69 Start of operation at standard room temperature or Set flow temperature in accordance with parame- comfort room temperature ter 424.3 Set flow temperature in accordance with the set Duration of operation with higher set flow tempera- heating curve ture in accordance with parameter 424.4: 60 min...

  • Page 114: Connection And Wiring Dia-Hmu Heat Management Unit

    Connection and wiring diagram HMU heat management unit Fig. 70 A1 HMU heat management unit Outside temperature sensor A2 HMI programming unit with RF module (wireless Cylinder temperature sensor (gas condensing module) system boiler) A3 Switching mode power supply Power supply fÖ...
  • Page 115 Connection and wiring diagram HMU heat management unit (cont.) CAN bus P2 Output 230 V for: Floating input 230 V, output 230 V ■ Circulation pump for heating circuit without Mains voltage output mixer P1 Output 230 V for: ■ DHW circulation pump Circulation pump for cylinder heating To BCU burner control unit...

  • Page 116: Gram Bcu Burner Control Unit

    Connection and wiring diagram BCU burner control unit Fig. 71 PWM Control signal Gas solenoid valve X... Electrical interfaces fÖ Power supply § A/B Flow temperature sensors 1 and 2 Ignition unit Outlet temperature sensor (gas condensing Fan motor a-Ö combi boiler) A Fan motor control a-Ö...

  • Page 117: Commissioning/Service

    Commissioning/service reports Commissioning/service reports Settings and test values Set value Commission- Maintenance/ Maintenance/ service service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pres- sure) For natural gas ..mbar See table "Supply pressure" For LPG ..mbar (Commis- sioning ...)

  • Page 118: Specification Specification

    Specification Specification Gas condensing system boiler (type B2HE) Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 1.9 - 11 1.9 - 19 1.9 - 25 1.9 - 32 LPG, natural gas M 2.5 - 11 2.5 - 19 2.5 - 25 2.5 - 32...
  • Page 119 Specification Specification (cont.) Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 1.9 - 11 1.9 - 19 1.9 - 25 1.9 - 32 LPG, natural gas M 2.5 - 11 2.5 - 19 2.5 - 25 2.5 - 32 = 80/60 °C (Pn(80/60)) Natural gas...
  • Page 120 Specification Specification (cont.) Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 1.9 - 19 1.9 - 25 1.9 - 32 LPG, natural gas M 2.5 - 19 2.5 - 25 2.5 - 32 = 80/60 °C (Pn(80/60)) Natural gas 1.7 - 17.4 1.7 - 22.9...
  • Page 121 Specification Specification (cont.) Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 1.9 - 19 1.9 - 25 1.9 - 32 LPG, natural gas M 2.5 - 19 2.5 - 25 2.5 - 32 = 80/60 °C (Pn(80/60)) Natural gas 1.7 - 17.4 1.7 - 22.9...

  • Page 122: Electronic Combustion Control Unit

    Specification Electronic combustion control unit The electronic combustion controller utilises the physi- To achieve optimum combustion control, the system cal correlation between the level of the ionisation cur- regularly carries out an automatic self-calibration; also rent and the air ratio .

  • Page 123: Disposal Final Decommissioning And Disposal

    Disposal Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning the system, isolate the system and substances from the system are not part of ordi- from the power supply and allow components to cool nary household waste.

  • Page 124: Certificates Declaration Of Conformity

    Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, confirm that the product Vitodens 200-W complies with the NO limits specified by the 1st BImSchV, paragraph 6 [Germany].

  • Page 125: Keyword Index

    Keyword index Keyword index Flow temperature sensor........... 99 Angle of penetration........... 28 Flue gas temperature sensor........100 Front panel removal........... 11 Function descriptions..........107 Back draught safety device........50 Function sequence.............43 Boiler water temperature sensor........ 99 Fuse................. 106 Burner control unit............ 116 –...
  • Page 126 Keyword index Keyword index (cont.) Parameter Raising flow temperature – Automatic summer/wintertime changeover..... 60 – Operation with room temperature hook-up... 109 – Burner hours until next service........61 Raising reduced room temperature......111 – Calculation of solar yield......... 71 Range of WiFi connections........28 –...
  • Page 128 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

This manual is also suitable for:

Vitodens 200-w seriesVitodens 200-w b2keVitodens 200-wB2heB2ke

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