Viessmann VITODENS 200-W Service Instructions Manual
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Viessmann VITODENS 200-W Service Instructions Manual

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VIESMANN
Service instructions
for contractors
Vitodens 200-W
Type WB2B, 4.8 to 35.0 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 200-W
Please keep safe.
5692 812 GB
10/2009

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Summary of Contents for Viessmann VITODENS 200-W

  • Page 1 VIESMANN Service instructions for contractors Vitodens 200-W Type WB2B, 4.8 to 35.0 kW Wall mounted gas condensing boiler Natural gas and LPG version For applicability, see the last page VITODENS 200-W Please keep safe. 5692 812 GB 10/2009...

  • Page 2: Safety Instructions

    Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ all current safety regulations as defined by DIN, EN, DVGW, TRGI, Danger TRF, VDE and all locally applicable This symbol warns against the standards, risk of injury.
  • Page 3 ■ When using gas as fuel, also close the For replacements, use only orig- main gas shut-off valve and safeguard inal spare parts from Viessmann against unauthorised reopening. or those which are approved by ■ Isolate the system from the power sup- Viessmann.

  • Page 4: Table Of Contents

    Index Index Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... Further details regarding the individual steps............Codes Code 1........................35 Code 2........................38 Resetting codes to their delivered condition............55 Service scans Service level overview ..................56 Temperatures, boiler coding card and brief scans ..........57 Checking outputs (relay test)................

  • Page 5: Commissioning, Inspection, Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • 1. Filling the heating system..........• 2. Venting the boiler............• 3. Venting the heating system........... •...
  • Page 6 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • 21. Flow limiter (only for gas combi boilers)...... 22 • • 22. Checking the diaphragm expansion vessel and system pressure............. 23 • • •...

  • Page 7: Further Details Regarding The Individual Steps

    ■ Soften fill water with hardness exceeding 3.0 mol/m , e.g. using a small softening system for heating water (see Viessmann Vitoset price list). ■ An antifreeze additive suitable for heating systems can be mixed with the fill water. The antifreeze manufacturer must verify its suitability.

  • Page 8: Venting The Boiler

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the heat- 4. Close valves A and B and open ing water side. the heating water shut-off valves. 2. Connect the drain hose between top valve B and a drain outlet.

  • Page 9: Venting The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the heating system 1. Close the gas shut-off valve and 3. Check the system pressure. switch ON the control unit. 2. Activate the venting program via cod- ing address "2F:1" in code 1. Note To call up code 1 and for setting the coding address, see page 35.

  • Page 10: Weather-Compensated Control Units

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Setting the time and date (if required) – only for weather-com- pensated control units Note Date (see step 2) ■ During commissioning, or after a pro- longed time out of use, it may be nec- Datum essary to reset the time and date, if the time flashes in the display.

  • Page 11: Selecting The Language (If Required) - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the language (if required) – only for weather-compen- sated control units Note Press the following keys: When the unit is first taken into operation the display is in German (default lan- 1.

  • Page 12: Gas Type Conversion (Only For Operation With Lpg)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Wobbe index ranges Gas type Wobbe index range kWh/m MJ/m Delivered condition Natural gas E 12.0 to 16.1 43.2 to 58.0 Natural gas LL 10.0 to 13.1 36.0 to 47.2 After conversion LPG P 20.3 to 21.3...
  • Page 13 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fan starts after approx. 51 s Check the fan, fan fault F9 connecting cables, power at the fan and fan control Ignition Fault EE Check the ignition module (control voltage 230 V across plugs "X2.1"...

  • Page 14: Checking The Static And Supply Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Automatic calibra- Fault Eb Check the con- tion of the com- necting cable and bustion control the ionisation elec- unit trode, check the flue gas system (flue gas recirculation) For further details regarding faults, see page 66.
  • Page 15 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Close the gas shut-off valve. 2. Undo the screw inside test connector "IN" A on the gas train, but do not remove, then connect the pressure gauge. 3. Open the gas shut-off valve. 4.

  • Page 16: Setting The Maximum Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Danger Gas escaping from the test nipple leads to a risk of explo- sions. Check for tightness. Open the gas shut-off valve, start the boiler and check for tightness at test nipple A.

  • Page 17: Checking The Balanced Flue System For Tightness

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the balanced flue system for tightness (annular gap check) We recommend that your heating engi- neer carries out a simple leak/tightness test during the commissioning of your system. For this, it would be sufficient to check the CO or O concentration in the...

  • Page 18: Burner Removal

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner removal 1. Switch OFF the main power supply 4. Release gas supply pipe F fitting. and the ON/OFF switch at the control unit. 5. Undo four screws G and remove the burner.

  • Page 19: Checking The Burner Gasket And The Burner Gauze Assembly

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the burner gasket and the burner gauze assembly Check burner gasket A and burner gauze assembly E for damage and replace, if required. Generally replace the burner gasket every 2 years. 1.

  • Page 20: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Refit thermal insulation ring D. 6. Refit electrodes B. Torque: 2.5 Nm. Checking and adjusting the ignition and ionisation electrodes ±1 A Ignition electrodes B Ionisation electrode 1. Check the electrodes for wear and 3.
  • Page 21 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Use a vacuum cleaner to remove res- idues from the heat exchanger A inside the combustion chamber. 2. If required, spray slightly acidic, chloride-free cleaning agents based on phosphoric acid (e.g. Antox 75 E) onto the heat exchanger A and let the solution soak in for approx.

  • Page 22: Checking The Condensate Drain And Cleaning The Siphon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the condensate drain and cleaning the siphon 1. Check that the condensate can drain freely at the siphon. 2. Remove retaining clip A and siphon 3. Clean siphon B. 4.

  • Page 23: Checking The Diaphragm Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pressure Note 3. Top up with water until the filling pres- Carry out this test on a cold system. sure of the cooled system is min. 1.0 bar and 0.1 to 0.2 bar higher than 1.
  • Page 24 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) ■ 7.7 to 9.2% for natural gas E and LL ■ 9.3 to 10.9% for LPG P For all gas types, the O content must be between 4.4% and 6.9%. If the actual CO or O values lie outside their respective ranges, check the balanced...

  • Page 25: Matching The Control Unit To The Heating System

    ■ For the selection of an appropriate design, see the following diagrams. ■ For coding steps, see page 35. System version 1 One heating circuit without mixer A1 (with/without DHW heating) 1 Vitodens 200-W 4 DHW cylinder 2 Outside temperature sensor (only 5 Cylinder temperature sensor...
  • Page 26 Note The volume flow of the heating circuit without mixer must be at least 30% greater than the volume flow of the heating circuit with mixer. 1 Vitodens 200-W 8 Flow temperature sensor M2 2 Outside temperature sensor 9 Heating circuit pump M2...
  • Page 27 (cont.) System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 with system separation (with/without DHW heating) 1 Vitodens 200-W 8 Flow temperature sensor M2 2 Outside temperature sensor 9 Heating circuit pump M2...
  • Page 28 One heating circuit with mixer M1 (with Vitotronic 200-H), one heating circuit with mixer M2 (with extension kit) and low loss header (with/without DHW heat- ing) 1 Vitodens 200-W qQ Flow temperature sensor M2 2 Outside temperature sensor qW Heating circuit pump M2...

  • Page 29: Adjusting The Heating Curves (Only For Weather-Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Required coding Address ■ with DHW heating 00:4 ■ without DHW heating 00:3 Make the LON connection to the Vitotronic 200-H, see page 31. Adjusting the heating curves (only for weather-compensated control units) The heating curves illustrate the relation- The room temperature, again, depends...
  • Page 30 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the slope and level Adjusting the set room temperature Standard room temperature Outside temperature in °C Example 1: Adjustment of standard room A Changing the slope temperature from 20 to 26 °C B Changing the level (vertical parallel offset of the heating curve) A Boiler water temperature or flow...

  • Page 31: Connecting The Control Unit To The Lon System (Only For Weather-Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Adjust the set day temperature with C Set room temperature in °C rotary selector "ts". D Heating circuit pump "OFF" The value will be automatically accep- E Heating circuit pump "ON" ted after approx.
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Single boiler system with Note Vitotronic 200-H and Vitocom 300 In the same LON system, the same num- ber cannot be allocated twice. Set up the LON subscriber numbers and Only one Vitotronic may be program- further functions via code 2 (see the fol- med as fault manager.

  • Page 33: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Carrying out a subscriber check Communication with the system devices connected to the fault manager is tested with a subscriber check. Preconditions: 2. a/b for the required sub- ■ The control unit must be programmed scriber.

  • Page 34: Scanning And Resetting The "Service" Display

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Scanning and resetting the "Service" display The red fault indicator flashes when the limits set via coding address "21" and "23" have been reached. The programming unit display flashes: ■ On a constant temperature control unit: The defaulted hours run or the defaulted interval with clock symbol "u"...

  • Page 35: Codes Code 1

    Codes Code 1 Calling up code 1 Note 2. a/b for the required coding ■ On weather-compensated control address; the address units, codes are displayed as plain flashes. text. ■ Codes that are irrelevant due to the 3. d to confirm. system equipment level or the setting 4.
  • Page 36 Codes Code 1 (cont.) Overview Coding Coding in the delivered condition Possible change System design 00 :1 System version 1: 00 :2 System version 1: 1 heating circuit without 1 heating circuit without mixer A1, without DHW mixer A1, with DHW heat- heating 00 :3 System version 4:...
  • Page 37 Codes Code 1 (cont.) Coding in the delivered condition Possible change User no. 77:1 LON user number 77:2 LON subscriber number, adjustable from 1 to 99: 77:99 1 - 4 = Boiler 5 = Cascade 10 - ... = Vitotronic 200-H 99 = Vitocom Note Allocate each number only...

  • Page 38: Code 2

    Codes Code 2 Calling up code 2 Note 4. d to confirm; the value ■ On weather-compensated control flashes. units, codes are displayed as plain text. 5. a/b for the selected value. ■ Codes that are irrelevant due to the 6.
  • Page 39 Codes Code 2 (cont.) Codes Coding Coding in the delivered condition Possible change System design 00 :1 System version 1: 00 :2 System version 1: 1 heating circuit without 1 heating circuit without mixer A1, without DHW mixer A1, with DHW heat- heating 00 :3 System version 4:...
  • Page 40 Codes Code 2 (cont.) Coding in the delivered condition Possible change 21:0 No maintenance interval 21:1 The number of hours run (hours run) selected before the burner should 21:100 be serviced is adjustable from 100 to 10 000 h one step ≙ 100 h 23:0 No time interval for 23:1...
  • Page 41 Codes Code 2 (cont.) Value Internal circu- Heating circuit Heating circuit Circulation address lation pump pump pump pump for cylin- 32: ... Heating circuit Heating circuit der heating without mixer with mixer Control funct. Control funct. Control funct. Control funct. Control funct.
  • Page 42 Codes Code 2 (cont.) Value Internal cir- Heating cir- Heating cir- Circulation pump for address culation cuit pump cuit pump cylinder heating 34: ... pump Heating cir- Heating cir- cuit without cuit with mixer mixer Control Control funct. Control funct. funct.
  • Page 43 Codes Code 2 (cont.) Coding in the delivered condition Possible change 52:0 Without flow temperature 52:1 With flow temperature sen- sensor for low loss sor for low loss header header (automatic adjustment on connection) Function connection sK Function connection sK: 53:1 53:0 of the internal extension:...
  • Page 44 63:14 63:15 2 x daily 65:... Information regarding the 65:0 Without diverter valve type of diverter valve (not 65:1 Viessmann diverter valve adjustable) 65:2 Wilo diverter valve 65:3 Grundfos diverter valve 67:40 With Vitosolic: Third set 67:0 Without third set DHW tem-...
  • Page 45 Codes Code 2 (cont.) Coding in the delivered condition Possible change 73:0 DHW circulation pump 73:1 during the time program "ON" in accordance with "ON" 1x/h for 5 min the time program (only for 73:6 "ON" up to 6x/h for 5 min weather-compensated 73:7 Permanently "ON"...
  • Page 46 Codes Code 2 (cont.) Coding in the delivered condition Possible change 81:1 Automatic summer/win- 81:0 Manual summer/winter ter time changeover time changeover 81:2 Radio clock module is automatically detected 81:3 With LON communication module: The control unit receives the time 82:0 Operation with natural 82:1...
  • Page 47 Vitotronic 200-H (only for weather-com- pensated control units) 98:1 Viessmann system num- 98:1 System number adjustable ber (in conjunction with from 1 to 5 monitoring several sys- 98:5...
  • Page 48 Codes Code 2 (cont.) Coding in the delivered condition Possible change 9F:8 Differential temperature 9F:0 Differential temperature 8 K; only in conjunction adjustable from 0 to 40 K with the mixer circuit (only 9F:40 for weather-compensa- ted control units) Boiler circuit, mixer circuit A0:0 Without remote control A0:1...
  • Page 49 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A4:0 With frost protection (only A4:1 No frost protection, adjust- for weather-compensa- ment only possible if cod- ted control units) ing address "A3: -9" has been selected.
  • Page 50 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A6:36 Extended economy func- A6:5 Extended economy mode tion disabled (only for is enabled, i.e. the burner weather-compensated A6:35 and heating circuit pump control units) will be switched OFF and the mixer will be closed at a variable value that is...
  • Page 51 Codes Code 2 (cont.) Coding in the delivered condition Possible change A9:7 With pump idle time: A9:0 Without pump idle time Heating circuit pump A9:1 With pump idle time; "OFF" if the set value adjustable from 1 to 15 changes through a A9:15 change in operating mode or through a...
  • Page 52 Codes Code 2 (cont.) Parameter With heating circuit pump logic function: Heating circuit address b5:... pump OFF, if enabled RT > RT + 5 K; disabled RT < RT + 4 K actual actual enabled RT > RT + 4 K; disabled RT <...
  • Page 53 Codes Code 2 (cont.) Coding in the delivered condition Possible change E1:1 With remote control: The E1:0 Set day temperature set day temperature can adjustable from 3 to 23 °C be adjusted at the remote E1:2 Set day temperature control unit from 10 to adjustable from 17 to 30 °C (only for weather- 37 °C...
  • Page 54 Codes Code 2 (cont.) Coding in the delivered condition Possible change F6:25 In the "DHW only" oper- F6:0 In the "DHW only" operat- ating mode, the internal ing mode, the internal cir- circulation pump is per- culation pump is perma- manently ON (only for nently OFF constant temperature...

  • Page 55: Resetting Codes To Their Delivered Condition

    Codes Code 2 (cont.) Coding in the delivered condition Possible change FA:20 Raising the set boiler FA:0 Temperature rise adjusta- water temperature or the ble from 0 to 50% set flow temperature by FA:50 10 % when changing from operation with reduced room tempera- ture to operation with standard room tempera-...

  • Page 56: Service Scans

    Service scans Service level overview Function Key combination Exit Page Temperatures, boiler cod- Press K and G simulta- Press d ing card and brief scans neously for approx. 2 s Relay test Press K and d simultane- Press d ously for approx. 2 s Max.

  • Page 57: Temperatures, Boiler Coding Card And Brief Scans

    Service scans Temperatures, boiler coding card and brief scans Weather-compensated control unit Press the following keys: 2. a/b for the required scan. 1. K + G simultaneously for 3. d Scanning is completed. approx. 2 s. The following values can be scanned, subject to the actual system equipment level: Display screen Explanation...
  • Page 58 Service scans Temperatures, boiler coding card and brief… (cont.) Brief scan Display Flow Software Software Software Software Software switch version version version version version position Program- Mixer Solar con- External ming unit exten- trol unit module extension sion 0: no 0: no 0: no exter- 0: no...
  • Page 59 Service scans Temperatures, boiler coding card and brief… (cont.) Constant temperature control unit Press the following keys: 2. a/b for the required scan. 1. K + G simultaneously for 3. d Scanning is completed. approx. 2 s. The following values can be scanned, subject to the system equipment level: Brief scan Display Flow...

  • Page 60: Checking Outputs (Relay Test)

    Service scans Temperatures, boiler coding card and brief… (cont.) Brief scan Display Version Version Appliance Burner control unit Variable Software speed version pump Variable 0 w/o speed pump 1 Wilo 0: no varia- 2 Grundfos ble speed pump Checking outputs (relay test) Weather-compensated control unit Press the following keys: 2.

  • Page 61: Scanning Operating Conditions And Sensors

    Service scans Checking outputs (relay test) (cont.) Constant temperature control unit Press the following keys: 2. a/b for the required relay out- put. 1. K + d simultaneously for approx. 2 s. 3. d Relay test is completed. The following relay outputs can be controlled subject to system design: Display screen Explanation Burner modulation base load...
  • Page 62 Service scans Scanning operating conditions and sensors (cont.) Display screen Explanation Boiler temp., ... °C Actual value Supply temp., ... °C Actual value (only for mixer circuit M2) Normal Set value room temp., ... °C Room temperature, ... °C Actual value Ext.
  • Page 63 Service scans Scanning operating conditions and sensors (cont.) The following operating conditions can be scanned, subject to the actual sys- tem equipment level: Display screen Explanation °C/°F Actual outside temperature °C/°F Actual boiler water temperature °C/°F Actual cylinder temperature (if a cylinder temperature sensor is installed) °C/°F Solar - actual DHW temperature...

  • Page 64: Troubleshooting

    Troubleshooting Fault display Fault display layout Outside temp. sensor RESET ­ A Fault display C Fault number B Fault symbol D Fault code The red fault indicator flashes for every Fault fault. °C A fault in the burner control unit causes the display to show "E".

  • Page 65: Checking And Acknowledging Faults

    Troubleshooting Fault display (cont.) Checking and acknowledging faults Note Weather-compensated control unit If an acknowledged fault is not removed, the fault message will be re-displayed: Press the following keys: ■ With a constant temperature control unit after 24 h 1. c for the current fault.

  • Page 66: Fault Codes

    Troubleshooting Fault display (cont.) 4. d Scanning is completed. Fault codes Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Service Service the appli- ance. After servic- ing, set coding address "24:0" Controls as if Short circuit, Check the outside the outside...
  • Page 67 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Mixer closes Short circuit, Check the flow flow tempera- temperature sen- ture sensor in sor. heating circuit with mixer M2 Mixer closes Lead break, Check the flow flow tempera-...
  • Page 68 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Short circuit, Check the sensor collector tem- at the Vitosolic. perature sen- sor; connects to the Vitosolic at Control mode Short circuit, Check the sensor cylinder tem-...
  • Page 69 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Lead break, Check the sensor temperature at the Vitosolic. sensor; con- nects to the Vitosolic at Control mode Solar control Check the solar unit fault;...
  • Page 70 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Lead break, Check the flue gas flue gas tem- temperature sen- perature sen- sor (see page 82). Mixer M2 regu- Communica- Check extension lates to 20 °C...
  • Page 71 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode, Communica- Check setting of max. pump tion fault, coding address speed external vari- "E5". able speed heating circuit pump, heat- ing circuit with mixer M2 Control mode,...
  • Page 72 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Lead break, Check the room without room room temper- temperature sen- influence ature sensor, sor, heating circuit heating circuit A1 and the remote control DIP switch settings (see page 101).
  • Page 73 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault Heat draw-off Initiate a heat state repeatedly draw-off. Switch too low during the boiler OFF and calibration ON again. Press "E RESET".
  • Page 74 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault The flame Check the gas sup- state extinguishes ply (gas pressure immediately and gas flow lim- after forma- iter), check the flue tion (during gas/ventilation air...
  • Page 75 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault Fuel valve Check the gas state closes too train. Check both late control paths. Press "E RESET". Burner in a fault Fan speed Check the fan, state...

  • Page 76: Repairs

    Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Boiler coding Press "E RESET". or in a fault card or main Replace boiler cod- state PCB faulty ing card or control unit if the fault per- sists Burner blocked...
  • Page 77 Troubleshooting Repairs (cont.) 2. Test the resistance of the outside 3. Where actual values strongly deviate temperature sensor across terminals from the curve values, disconnect the "X3.1" and "X3.2" on the disconnec- wires at the sensor and repeat test ted plug and compare it with the immediately at the sensor.
  • Page 78 Troubleshooting Repairs (cont.) 1. ■ Boiler water temperature sensor: Pull the leads from boiler water temperature sensor A and check the resistance. ■ Cylinder temperature sensor: Pull plug % from the cable harness at the control unit and check the resistance.
  • Page 79 Troubleshooting Repairs (cont.) Check the outlet temperature sensor or comfort sensor (gas combi boilers only) 1. Disconnect the leads from outlet tem- perature sensor A or comfort sensor 2. Check the sensor resistance and compare it with the curve.
  • Page 80 Troubleshooting Repairs (cont.) 3. Replace the sensor in case of severe deviation. Note Water can leak when replacing the outlet temperature sensor. Close the cold water shut-off valve. Drain the DHW line and the plate heat exchanger (DHW side). 10 30 50 70 90 110 Temperature in °C...
  • Page 81 Troubleshooting Repairs (cont.) Checking the plate heat exchanger 1. Shut off and drain the boiler on its heating water and DHW side. 2. Release the side closures and pivot the control unit forward. 3. Pull the leads from comfort sensor 4.
  • Page 82 Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded. Reset the interlock after the flue gas system has cooled down by pressing "E RESET". 1.
  • Page 83 Troubleshooting Repairs (cont.) Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx. 75 °C, check the following: 1. Pull the leads from thermocou- ple A. 2.
  • Page 84 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch OFF the power. 3. Remove cover A. 2. Release the side closures and pivot 4. Check fuse F1 (see connection and the control unit down. wiring diagram). Extension kit for heating circuit with mixer Checking the rotational direction of 1.
  • Page 85 Troubleshooting Repairs (cont.) 2. Note the rotational direction of the Mixer installation instructions mixer motor during its self-test. Then set the mixer manually to "Open" again. Note The flow temperature sensor must now capture a higher temperature. If the temperature drops, either the motor is turning in the wrong direction or the mixer set is incorrectly fitted.
  • Page 86 Troubleshooting Repairs (cont.) Checking the Vitotronic 200-H (accessories) The Vitotronic 200-H is connected to the control unit via the LON cable. To test the connection, carry out a user check at the boiler control unit (see page 33).

  • Page 87: Function Description

    Function description Constant temperature control unit Control and display elements º C RESET A Pressure gauge D ON indicator (green) B Fault indicator (red) E Reset button C Optolink interface F User interface only in conjunction with the diagnos- G ON/OFF switch tic adaptor (accessory) and Vitosoft (accessory) Keys at the user interface:...

  • Page 88: Weather-Compensated Control Unit

    Function description Constant temperature control unit (cont.) DHW heating with gas fired combi boilers If the flow switch detects that hot water is being extracted (> 3 l/min) then the burner, circulation pump and 3-way valve are switched on or changed over. The burner modulates according to the DHW outlet temperature and is limited by the temperature limiter (82 °C) on the...

  • Page 89: Heating Operation

    Function description Weather-compensated control unit (cont.) D ON indicator (green) G Rotary selector for standard room E Reset button temperature H ON/OFF switch F User interface Keys at the user interface: O+F Emissions test function Standby mode Central heating time program DHW only DHW heating and DHW circu- Heating and DHW...
  • Page 90 Function description Weather-compensated control unit (cont.) DHW heating with a gas fired boiler The burner, the circulation pump and the In the delivered condition, the set boiler three-way valve are started or changed water temperature is 20 K higher than over if the cylinder temperature lies 2.5 the set DHW temperature (adjustable via K below the set cylinder temperature.

  • Page 91: Extensions For External Connections (Accessories)

    Function description Extensions for external connections (accessories) Internal extension H1 The internal extension is integrated into ■ Heating circuit pump for a heating cir- the control unit housing. The following cuit without mixer (coding address alternative functions can be connected "53:2") to relay output sK.

  • Page 92: Internal Extension H2

    Function description Extensions for external connections… (cont.) Internal extension H2 The internal extension is integrated into ■ Heating circuit pump for heating circuit the control unit housing. The following without mixer (coding address "53:2") alternative functions can be connected ■ Circulation pump for cylinder heating to relay output sK.

  • Page 93: External Extension H

    Function description Extensions for external connections… (cont.) External extension H1 The external extension is connected to aVD ■ External blocking the boiler control unit via the KM BUS. (terminals 2 - 3) The following functions can be controlled ■ External demand or processed simultaneously via the (terminals 1 - 2) extension:...
  • Page 94 Function description Extensions for external connections… (cont.) External extension H2 The external extension is connected to aVD ■ External blocking the boiler control unit via the KM BUS. (terminals 2 - 3) The following functions can be controlled ■ External demand or processed simultaneously via the (terminals 1 - 2) extension:...

  • Page 95: Control Functions

    Function description Control functions External heating program changeover The "External heating program change- over" function is connected via external extension input "aVD". You can select which heating circuits the heating pro- gram changeover affects in coding address "91": Heating program changeover Coding No changeover 91:0...
  • Page 96 Function description Control functions (cont.) External blocking The "External blocking" function is con- In coding address "32" you can select the nected via external extension input influence the "Ext. blocking" signal "aVD". should have on the connected circulation pumps. External demand The "External demand"...
  • Page 97 Function description Control functions (cont.) Screed drying function The screed function enables screeds to ■ Heat-up data with respective flow tem- be dried. For this, always observe the peratures details specified by the screed manufac- ■ Max. flow temperature achieved turer.
  • Page 98 Function description Control functions (cont.) Temperature profile 3: Code "F1:3" Days Temperature profile 4: Code "F1:4" Days Temperature profile 5: Code "F1:5" Days...
  • Page 99 Function description Control functions (cont.) Temperature profile 6: Code "F1:6" Days Temperature profile 7: Code "F1:15" Days Raising the reduced room temperature During operation with reduced room The outside temperature limits for the temperature, the reduced set room tem- start and end of the temperature raising perature can be automatically raised can be adjusted via coding addresses subject to the outside temperature.
  • Page 100 Function description Control functions (cont.) Example using the settings in the delivered condition -5 -10 -15 Outside temp. in °C A Heating curve for operation with B Heating curve for operation with standard room temperature reduced room temperature Reducing the heat-up time During the transition from operation with The value and duration of the additional reduced room temperature to operation...

  • Page 101: Remote Control Dip Switches

    Function description Control functions (cont.) Example using the settings in the delivered condition Time in h A Start of operation with standard D Duration of operation with raised set room temperature boiler water or flow temperature in B Set boiler water or flow temperature accordance with coding address in accordance with the selected "Fb":...

  • Page 102: Electronic Combustion Controller

    Function description Remote control DIP switches (cont.) Remote control DIP switch setting The remote control affects the heating cir- cuit without mixer A1 1 2 3 4 The remote control affects the heating cir- cuit with mixer M2 1 2 3 4 When connecting a separate room tem- perature sensor, set DIP switch "3"...
  • Page 103 Function description Electronic combustion controller (cont.) Air factor λ – CO content Air factor content content (%) content (%) content λ for natural gas for natural gas (%) for LPG P 1.24 10.9 1.27 10.6 1.30 10.3 1.34 10.0 1.37 1.40 1.44 To achieve an optimum combustion con-...

  • Page 104: Designs

    Designs Connection and wiring diagram – internal connections Main PCB Ionisation electrode X... Electrical interface Flue gas temperature sensor § Boiler water temperature sensor dÖ Stepper motor for diverter valve Outlet temperature sensor Temperature limiter (gas condensing combi boiler) Ignition unit...
  • Page 105 Designs Connection and wiring diagram – internal… (cont.) a-Ö Fan motor a:Ö Modulation coil a-ÖA Fan motor control Flow switch (gas condensing combi boiler)

  • Page 106: Connection And Wiring Diagram - External Connections

    Designs Connection and wiring diagram – external connections Main PCB Combustion controller Power supply unit Programming unit Optolink Coding card...
  • Page 107 Designs Connection and wiring diagram – external… (cont.) Connection adaptor sÖ Internal circulation pump LON communication module Gas solenoid valve (Vitotronic 200) fÖ Power supply [terminals] Internal extension H1 or H2 Power supply accessories and ON/OFF switch Vitotrol 100 Reset button a-Ö...

  • Page 108: Parts Lists

    Parts lists Parts lists Spare parts information 053 Burner gauze assembly gasket Quote the part and serial no. (see type 058 Burner door gasket plate) and the item number of the 059 Fan required part (as per this parts list). 061 Gas train Obtain standard parts from your local 062 Burner door...
  • Page 109 Parts lists Parts lists (cont.) 054 Ignition electrode block 103 Power cable, stepper motor 055 Ionisation electrode 104 Ionisation cable 105 Earth/ignition module cable har- Parts not shown ness 016 Special grease 202 Spray paint, Vitowhite 028 Plug-in connector retainers (set) 203 Touch-up paint stick, Vitowhite 041 Plug-in connector gaskets (set) 300 Installation instructions...
  • Page 110 Parts lists Parts lists (cont.)
  • Page 111 Parts lists Parts lists (cont.)
  • Page 112 Parts lists Parts lists (cont.)
  • Page 113 Parts lists Parts lists (cont.)

  • Page 114: Commissioning/Service Reports

    Commissioning/service reports Commissioning/service reports Setting and test val- Set value Commis- Service sioning Date: Static pressure mbar max. 57.5 mbar Supply pressure (flow pressure) = for natural gas E mbar 17.4-25 mbar = for natural gas LL mbar 17.4-25 mbar = for LPG mbar 42.5-57.5 mbar...

  • Page 115: Specification

    Specification Specification Rated voltage: 230 V~ Rated frequency: 50 Hz Electronic tempera- Rated current: ture limiter setting: 82 °C (fixed) Safety class: Temperature limiter IP X 4 D to setting: 100 °C (fixed) Protection: EN 60529 Line fuse (mains): max. 16 A Permissible ambient temperature ■...

  • Page 116: Certificates

    Certificates Declaration of conformity Declaration of conformity for the Vitodens 200-W We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole respon- sible body, that the product Vitodens 200-W complies with the following standards: EN 483 EN 55 014...

  • Page 117: Keyword Index

    Keyword index Keyword index Extension kit for heating circuit with Acknowledging a fault display....65 mixer ..........84 External blocking........96 External demand........96 Boiler water temperature sensor ..77 Boosting DHW heating.......90 Brief scans.........57 Fault codes........66 Burner gasket........19 Fault display layout......64 Burner gauze assembly.....19 Fault history........65 Burner installation......20 Fault manager........32...
  • Page 118 Keyword index Keyword index (cont.) Scanning sensors......61 Language selection......11 Screed drying........97 LON............31 Screed drying function.......97 ■ Fault monitoring......32 Service ■ Setting subscriber number....32 ■ acknowledge........34 ■ Updating subscriber list....32 ■ reset..........34 LON communication module....31 Service level overview.......56 Setting the output.......16 Siphon..........9, 22 Manufacturer's certificate ....116 Small softening system......7...
  • Page 120 7194 474 7 00001 ... 7194 477 7 00001 ... 8.8 to 35.0 kW from serial no. 7194 476 7 00001 ... Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB...

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