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, 45 and 60 kW
Wall mounted gas fired condensing boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 200-W
Please keep safe.
5692 760 GB
11/2008

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Summary of Contents for Viessmann VITODENS 200-W

  • Page 1 VIESMANN Service instructions for contractors Vitodens 200-W Type WB2B, 45 and 60 kW Wall mounted gas fired condensing boiler Natural gas and LPG version For applicability, see the last page VITODENS 200-W Please keep safe. 5692 760 GB 11/2008...
  • Page 2 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........................38 Code 2........................41 Resetting codes to their delivered condition............62 Service scans Service level overview ..................63 Temperatures, boiler coding card and brief scans ..........64 Checking outputs (relay test)................
  • Page 5 Index Index (cont.) Keyword index....................119...

  • Page 6: 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 7 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • 20. Checking the neutralising system (if installed) • • 21. Checking the diaphragm expansion vessel and system pressure............. 24 • • • 22.

  • Page 8: Further Details Regarding The Individual Steps

    ■ Only use fill water of potable quality. ■ Soften fill water with a water hardness in excess of the following values, e.g. with a small softening system for heating water (see the Viessmann Vitoset pricelist): – Vitodens 200-W to 45 kW: 3.0 mol/m –...

  • Page 9: 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- ing water side. 2. Connect the drain hose at the boiler fill & drain valve B (on the connec- tion set, accessories or on-site).

  • Page 10: Filling The Siphon With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the siphon with water 1. Remove retaining clip A and pull out insert B. 2. Fill siphon C with water and reas- semble. Note Install the supply hose the correct way round.

  • Page 11: Checking Power Supply Connection 7. Setting The Time And Date (If Required) - Only For 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 12: 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 1. c "Heizkreis wählen" (select the display is in German (default lan- guage setting): heating circuit) is displayed.

  • Page 13: 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 14 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 F4 Check the ignition module (control voltage 230 V across plugs "X2.1"...

  • Page 15: 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 73.
  • Page 16 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Close the gas shut-off valve. 2. Release screw A inside test con- nector "PE" on the gas train, but do not remove it; then connect the pres- sure gauge. 3.

  • Page 17: 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 18: Checking The Balanced Flue System For Tightness (Annular Gap Check)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note The output can also be limited for DHW heating. For this, change coding address "6F" in code 2. 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.

  • Page 19: Removing The Burner And Checking The Burner Gasket (Replace Gasket Every 2 Years)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Removing the burner and checking the burner gasket (replace gasket every 2 years)
  • Page 20 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Release gas supply pipe H fitting. 1. Switch OFF the main power supply and the ON/OFF switch at the control unit. 7. Undo six screws K and remove the burner.

  • Page 21: Checking The Burner Gauze Assembly & Replacing, If Required

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the burner gauze assembly & replacing, if required D 4x B 3x 1. Remove electrodes A. 5. Insert a new burner gauze assembly with a new gasket and secure with 2.

  • Page 22: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and adjusting the ignition and ionisation electrodes ±1 A Ignition electrodes B Ionisation electrode 1. Check the electrodes for wear and 3. Check the electrode gaps. If the gaps contamination.
  • Page 23 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 24: 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. Remove retaining clip A and pull out insert B. 2. Clean siphon C and check that the condensate can freely drain off. 3.

  • Page 25: Flue Gas Emissions Test

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Flue gas emissions test The electronic combustion control unit automatically ensures an optimum combustion quality. Only the combustion values need to be checked during commissioning and maintenance. For this, check the CO or O content.

  • Page 26: Checking The External Lpg Safety Valve (If Installed) 27. Matching The Control Unit To The Heating System

    ■ For the selection of an appropriate design, see the following diagrams. ■ For coding steps, see page 38. System version 1 One heating circuit without mixer A1 (with/without DHW heating) 1 Vitodens 200-W...
  • Page 27 System version 2 One heating circuit with mixer M2 with system separation (with/without DHW heating) 1 Vitodens 200-W 7 Temperature limiter for limiting the 2 Outside temperature sensor maximum temperature of underfloor 3 Circulation pump for cylinder heat-...
  • Page 28 System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2, with low loss header (with/without DHW heating) 1 Vitodens 200-W 9 Heating circuit with mixer M2 2 Outside temperature sensor qP Temperature limiter for limiting the...
  • Page 29 System version 4 Three or more heating circuits with mixer and low loss header (with/without DHW heating) 1 Vitodens 200-W 9 Heating circuit pump M1 2 Outside temperature sensor qP Extension kit for one heating circuit 3 Boiler circuit pump...
  • Page 30 34. System version 5 Multi-boiler system with several heating circuits with mixer and low loss header (with/without DHW heating) 1 Vitodens 200-W 7 Circulation pump for cylinder heat- 2 Vitotronic 300-K 8 Heating circuit with mixer M2 3 Outside temperature sensor...

  • Page 31: Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) qQ Extension kit for one heating circuit qT Heating circuit pump M3 with mixer M2 qZ Extension kit for one heating circuit qW Heating circuit with mixer M3 with mixer M3 qE Temperature limiter for limiting the qU Low loss header maximum temperature of underfloor...
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Slope -5 -10 -15 -20 Outside temperature in °C A Heating curve slope for underfloor heating systems B Heating curve slope for low temper- ature heating systems (according to the Energy Savings Order [Ger- many])
  • Page 33 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 temperature from 20 to 26 °C A Changing the slope B Changing the level (vertical parallel offset of the heating curve) A Boiler water temperature or flow...

  • Page 34: Connecting The Control Unit To The Lon System (Only For Weather-Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) C Set room temperature in °C 5. Adjust the set day temperature with rotary selector "ts". D Heating circuit pump "OFF" The value will be automatically accep- E Heating circuit pump "ON" ted after approx.
  • Page 35 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 36: 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 37: 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 38: Codes

    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 of other codes will not be displayed.
  • Page 39 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 2, 4, 5:...
  • Page 40 Codes Code 1 (cont.) Coding in the delivered condition Possible change Subscriber no. 77:1 LON subscriber 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...

  • Page 41: Code 2

    Codes Code 1 (cont.) Coding in the delivered condition Possible change Max. flow temp. A1/M2 C6:74 Electronic maximum flow C6:10 Maximum limit adjustable temperature limit 74°C from 10 to 127°C (limited C6:127 (only for weather-com- by the boiler coding card) pensated control units) (only for weather-com- pensated control units)
  • Page 42 Codes Code 2 (cont.) The coding addresses are grouped according to the following function areas. The respective function area is shown on the display. The areas are scanned in the following sequence with a/b: Function area Coding addresses System design 06 to 54 Boiler/burner 56 to 73...
  • Page 43 Codes Code 2 (cont.) 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 2, 4, 5:...
  • Page 44 Codes Code 2 (cont.) Coding in the delivered condition Possible change 0d:0 Function "Emergency 0d:1 Function "Emergency mode in case of insuffi- mode in case of insufficient cient system pressure" system pressure" enabled. disabled Minimum system pressure, see page 8. The burner starts with the lower output.
  • Page 45 Codes Code 2 (cont.) Coding in the delivered condition Possible change 24:0 The service display is 24:1 Service display (value dis- reset played automatically) 25:0 i: No outside tempera- 25:1 Outside temperature sen- ture sensor or remote sor and fault monitoring recognised monitoring recognised (only for constant temper-...
  • Page 46 Codes Code 2 (cont.) Value Circulation Heating circuit Heating circuit Circulation address pump in the pump pump pump for cylin- 32: ... heating circuit Heating circuit Heating circuit der heating connection set without mixer with mixer Control funct. Control funct. Control funct.
  • Page 47 Codes Code 2 (cont.) Value Circulation Heating cir- Heating cir- Circulation pump for address pump in the cuit pump cuit pump cylinder heating 34: ... heating cir- Heating cir- Heating cir- cuit con- cuit without cuit with nection set mixer mixer Control Control funct.
  • Page 48 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) 53:1 Function connection sK 53:0 Function connection sK: of the internal extension: Central fault DHW circulation pump...
  • Page 49 Codes Code 2 (cont.) Coding in the delivered condition Possible change 60:20 During DHW heating, the 60:5 The difference between the boiler water temperature boiler water temperature is max. 20 K higher than 60:25 and the set DHW tempera- the set DHW tempera- ture is adjustable from 5 to ture 25 K...
  • Page 50 Codes Code 2 (cont.) Coding in the delivered condition Possible change General 76:0 Without LON communi- 76:1 With LON communication cation module (only for module; automatic recog- weather-compensated nition control units) 76:2 With KM BUS/cascade communication module; automatic recognition 77 :1 LON subscriber number 77 :2 LON subscriber number,...
  • Page 51 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 52 Control unit transmits out- connected to the control side temperature unit is utilised internally (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 53 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 54 Codes Code 2 (cont.) Parameters Heating circuit pump Address A3:... "ON" at "OFF" at -7 °C -5 °C -6 °C -4 °C -5 °C -3 °C -4 °C -2 °C -3 °C -1 °C -2 °C 0 °C -1 °C 1 °C 0 °C 2 °C...
  • Page 55 Codes Code 2 (cont.) Parameter address With heating circuit pump logic function: Heating cir- A5:... cuit pump OFF, if AT > RT + 2 K AT > RT + 1 K AT > RT AT > RT - 1 K AT >...
  • Page 56 Codes Code 2 (cont.) Coding in the delivered condition Possible change A8:1 Heating circuit with mixer A8:0 Heating circuit with mixer M2 creates a demand for M2 creates no demand for the circulation pump in the circulation pump in the the heating circuit con- heating circuit connection nection set (only for...
  • Page 57 Codes Code 2 (cont.) Coding in the delivered condition Possible change b2:8 With remote control and b2:0 Without room influence for the heating circuit, b2:1 Room influence factor operation with room tem- adjustable from 1 to 64 perature hook-up must be b2:64 programmed: Room influ- ence factor 8...
  • Page 58 Codes Code 2 (cont.) Coding in the delivered condition Possible change C6:74 Electronic maximum flow C6:10 Maximum temperature temperature limit 74 °C limit adjustable from 10 to C6:127 (only for weather-com- 127°C (limited by the boiler pensated control units) coding card) d3:14 Heating curve slope = 1.4 d3:2...
  • Page 59 Codes Code 2 (cont.) Coding in the delivered condition Possible change E6:65 Maximum speed of the E6:0 Maximum speed adjusta- variable speed heating ble from 0 to 100 % circuit pump 65 % of the E6:100 max. speed in standard mode (only for weather- compensated control units)
  • Page 60 Codes Code 2 (cont.) Coding in the delivered condition Possible change F2:8 Time limit for party mode F2:0 No time limit for party mode 8 hours or external heat- ing program changeover F2:1 Time limit adjustable from 1 via the keyboard (only for to 12 hours weather-compensated F2:12...
  • Page 61 Codes Code 2 (cont.) Coding in the delivered condition Possible change F8:-5 Temperature limit for ter- F8:+10 Temperature limit adjusta- minating the reduced ble from mode -5 ºC, see example +10 to -60 °C F8:-60 on page 102. F8:-61 Function disabled Observe the setting of coding address "A3"...

  • Page 62: Resetting Codes To Their Delivered Condition

    Codes Resetting codes to their delivered condition Constant temperature control unit: 1. L+G simultaneously for approx. 2 s. 2. e press. Weather-compensated control unit: 1. L+G simultaneously for approx. 2 s. 2. e "Factory set? Yes" appears. 3. d to confirm to select "Factory set? No".

  • Page 63: 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 Press K and d simultane- Press d Relay test ously for approx. 2 s Max.

  • Page 64: 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 approx. 3. d Scanning is completed. 2 s. The following values can be scanned, subject to the actual system equipment level: Display screen Explanation...
  • Page 65 Service scans Temperatures, boiler coding card and brief… (cont.) Brief scan Display screen Software Software Software Software Software version version version version version Program- Mixer Solar con- External ming unit exten- trol unit module extension sion 0: no 0: no 0: no exter- 0: no solar con-...
  • Page 66 Service scans Temperatures, boiler coding card and brief… (cont.) Brief scan Display screen Circulation pump in Heating circuit pump to connection exten- the heating circuit sion connection set Variable Software Variable Software Variable Software speed version speed version speed version pump variable pump...

  • Page 67: Checking Outputs (Relay Test)

    Service scans Temperatures, boiler coding card and brief… (cont.) Brief scan Display screen 0: no exter- 0: no exter- External 0 to 10 V hook-up nal blocking Display in % demand 1: external 0: no external hook-up 1: external blocking demand Set boiler water temperature Highest demand temperature...

  • Page 68: Scanning Operating Conditions And Sensors

    Service scans Checking outputs (relay test) (cont.) Display screen Explanation Heating circuit pump M2 Mixer extension Mixer open Mixer extension Mixer closed Mixer extension Int. output on Output sK internal extension Heating pump A1 on External extension H1 Cylinder pump on External extension H1 Recirc.pump On External extension H1...
  • Page 69 Service scans Scanning operating conditions and sensors (cont.) 5. d 4. a/b for the required operating Scanning is completed. condition. The following operating conditions can be scanned, subject to the actual sys- tem equipment level for heating circuit A1 and heating circuit with mixer M2: Display screen Explanation Participant no.
  • Page 70 Service scans Scanning operating conditions and sensors (cont.) Constant temperature control unit Press the following keys: 2. a/b for the required operating condition. 1. c press. 3. d Scanning is completed. The following operating conditions can be scanned, subject to the actual sys- tem equipment level: Display screen Explanation...

  • Page 71: 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 72 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 73: 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 Maintenance Service the equip- ment. After the service, set coding address "24:0" Controls as if Short circuit, Check the outside the outside...
  • Page 74 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Mixer closes Heating cir- Check the flow cuit with temperature sen- mixer M2 flow temperature sensor shor- ted out Mixer closes Break, heat- Check the flow ing circuit M2 temperature sen-...
  • Page 75 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Collector Check the sensor temperature at the Vitosolic sensor lead broken; con- nects to the Vitosolic at Control mode Cylinder tem- Check the sensor perature sen- at the Vitosolic...
  • Page 76 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Max. system Check system pressure pressure. exceeded Check the function and sizing of the diaphragm expan- sion vessel. Vent the heating system.
  • Page 77 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Mixer M2 regu- Communica- Check extension lates to 20 °C tion fault – kit connections and code. Start the flow tempera- extension kit extension kit ture for heating...
  • Page 78 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, var- coding address speed iable speed "E5" circulation pump, heat- ing circuit M2 Control mode, Communica- Check setting of...
  • Page 79 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Room tem- Check the room without room perature sen- temperature sen- influence sor, heating sor, heating circuit circuit A1 lead A1 and the remote broken control DIP switch...
  • Page 80 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault The ionisa- Check the ionisa- state tion current tion electrode and lies outside cable. the permissi- Check the flue gas ble range dur- system for tight- ing calibra-...
  • Page 81 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault The tempera- Check the heating state ture limiter system fill level. has respon- Check the circula- tion pump. Check the temperature limiter and con- necting cables.
  • Page 82 Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault Fan speed Check the fan, state too low during check the fan con- the burner necting cables and start supply;...

  • Page 83: Repairs

    Troubleshooting Fault codes (cont.) Fault Const. weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Strong inter- Start the equip- or in a fault ference ment again. state (EMC) field Replace the control nearby or unit if the equip- faulty main ment will not...
  • Page 84 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 85 Troubleshooting Repairs (cont.) Checking the boiler water temperature sensor, the cylinder tem- perature sensor or the flow temperature sensor for a low loss header...
  • Page 86 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 87 Troubleshooting Repairs (cont.) 1. Pull the leads from temperature lim- 4. Install a new temperature limiter. iter A. 5. After commissioning, press reset but- 2. Check the continuity of the tempera- ton "E RESET" at the control unit. ture limiter with a multimeter. 3.
  • Page 88 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 89 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 90 Troubleshooting Repairs (cont.) Checking the Vitotronic 200-H (accessories) The Vitotronic 200-H is connected to the control unit via the LON. To test the con- nection, carry out a subscriber check at the boiler control unit (see page 36).

  • Page 91: 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 92: Weather-Compensated Control Unit

    Function description Constant temperature control unit (cont.) DHW heating The burner and the circulation pump for In the delivered condition, the set boiler cylinder heating are started if the cylinder water temperature is 20 K higher than temperature lies 2.5 K below the set cyl- the set DHW temperature (adjustable via inder temperature.
  • Page 93 Function description Weather-compensated control unit (cont.) Setting values Information Standard settings (Reset) Confirmation Heating operation The control unit determines a set boiler The electronic temperature limiter inside water temperature subject to outside the burner control unit limits the boiler water temperature to 82 °C. temperature or room temperature (if a room temperature-dependent remote control is connected) and to the slope/...

  • Page 94: 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 95 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 96 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 97 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 98: 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 Code No changeover 91:0...
  • Page 99 Function description Control functions (cont.) External blocking The "External blocking" function is con- In coding address "32", you can select nected via external extension input the influence the "Ext. blocking" signal should have on the connected circulation "aVD". pumps. External demand The "External demand"...
  • Page 100 Function description Control functions (cont.) When the screed drying function is acti- The various temperature profiles are vated, the heating circuit pump of the adjustable via coding address "F1". mixer circuit is switched ON and the flow The function continues after power fail- temperature will be held at the selected ure or after the control unit has been profile.
  • Page 101 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 102 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 103 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 104: 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 105: Electronic Combustion Control Unit

    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 106 Function description Electronic combustion control unit (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 107: Designs

    Designs Connection and wiring diagram – internal connections Main PCB Ignition unit X... Electrical interfaces a-Ö Fan motor § Boiler water temperature sensor a-ÖA Fan motor control Ionisation electrode Water pressure sensor Flue gas temperature sensor a:Ö Modulation coil Temperature limiter...

  • Page 108: Connection And Wiring Diagram - External Connections

    Designs Connection and wiring diagram – external connections Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
  • Page 109 Designs Connection and wiring diagram – external… (cont.) sÖ Connection adaptor Heating circuit pump or boiler cir- LON communication module or cuit pump cascade communication module Flow switch Internal extension (accessories) Gas solenoid valve ON/OFF switch fÖ Power supply Reset button Power supply accessories and X...

  • Page 110: Parts Lists

    Parts lists Parts lists Spare parts information 070 Ionisation electrode gasket Quote the part and serial no. (see type 071 Ignition electrode gasket plate) and the item number of the 072 Gasket A 17x24x2 required part (as per this parts list). 073 Gas nozzle Obtain standard parts from your local 074 Venturi extension type 4...
  • Page 111 Parts lists Parts lists (cont.) 203 Touch-up paint stick, Vitowhite 303 Operating instructions for weather- 300 Installation instructions compensated mode 301 Service instructions A Type plate 302 Operating instructions for constant temperature mode...
  • Page 112 Parts lists Parts lists (cont.)
  • Page 113 Parts lists Parts lists (cont.)
  • Page 114 Parts lists Parts lists (cont.)

  • Page 115: Commissioning/Service Reports

    Commissioning/service reports Setting and test val- Set value Commis- Service sioning Date: with Static pressure mbar max. 57.5 mbar Supply pressure (flow pressure) = for natural gas E mbar 15-25 mbar = for natural gas LL mbar 15-25 mbar = for LPG mbar 42.5-57.5 mbar Tick gas type...

  • Page 116: Specification

    Specification Specification Rated voltage: 230 V~ Electronic tempera- 82 °C (fixed) Rated frequency: 50 Hz ture limiter setting: Rated current: 6.0 A Temperature limiter 100 °C (fixed) Safety class: setting: IP X 4 D to Line fuse (mains): max. 16 A Protection: EN 60529 Permissible ambient temperature...
  • Page 117 Specification Specification (cont.) Product characteristics (to EnEV [Germany]) Rated output range 17 - 45 17 - 60 Efficiency η at ■ 100 % of rated output 96.3 96.6 ■ 30 % of rated output 107.3 107.4 Standby loss q (max. limit B,70 according to EnEV [Germany]) Power consumption (max.

  • Page 118: Certificates

    Declaration of conformity Declaration of conformity for the Vitodens 200-W We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole respon- sible body that the product Vitodens 200-W complies with the following standards: EN 483 EN 60 335 EN 677...
  • Page 119 Keyword index Keyword index External blocking........99 Acknowledging a fault display....72 External demand........99 Boiler water temperature sensor ..85 Fault codes........73 Boosting DHW heating.......93 Fault display layout......71 Brief scans.........64 Fault history........72 Burner gauze assembly.....21 Fault manager........35 Burner installation......22 Fault memory........72 Burner removal........19 Faults..........71 Filling function........99 Filling the system.........8...
  • Page 120 Keyword index Keyword index (cont.) Screed drying........99 Language selection......12 Screed drying function.......99 LON............34 Service ■ Fault monitoring......35 ■ acknowledge........37 ■ Setting subscriber number....35 ■ reset..........37 ■ Updating subscriber list....35 Service level overview.......63 LON communication module....34 Setting the output.......17 Siphon..........10, 24 Small softening system......8 Manufacturer's certificate ....118 Specifications ........116...
  • Page 124 Applicability Vitodens 200-W, type WB2B 17 to 45 kW 17 to 60 kW from serial no. from serial no. 7373 009 7 00001 7373 010 7 00001 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0...

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