Summary of Contents for Viessmann Vitodens 200-W Series
Page 1
VIESMANN Installation and service instructions for contractors Vitodens 200-W Type B2HA, 45 and 60 kW Wall mounted gas condensing boiler Natural gas and LPG version For applicability, see the last page VITODENS 200-W Please keep safe. 5623 715 GB 2/2013...
Page 2
Safety instructions Safety instructions Please follow these safety instructions closely to If you smell gas prevent accidents and material losses. Danger Safety instructions explained Escaping gas can lead to explosions which may result in serious injury. Danger Do not smoke. Prevent naked flames and ■...
Page 3
Installing non-authorised components and making non-approved modifications or con- versions can compromise safety and may inva- lidate our warranty. For replacements, use only original spare parts supplied or approved by Viessmann.
Index Index 1. Product information Intended use ..................Product information ................Vitodens 200-W, type B2HA ............... ■ 2. Preparing for installation ........................3. Installation sequence Fitting the boiler and making connections ..........Fitting the wall mounting bracket ............■ Hooking the boiler onto the wall mounting bracket and levelling it ..10 ■...
Page 5
Index Index Checking outputs (relay test) ..............74 Weather-compensated control unit ............. 74 ■ Constant temperature control unit ............74 ■ 8. Troubleshooting Fault display ................... 76 Weather-compensated control unit ............. 76 ■ Constant temperature control unit ............76 ■ Fault codes ....................
Page 6
Index Index (cont.) Manufacturer's certificate according to the 1st BImSchV [Germany] ..114 15. Keyword index ........................115...
Product information Intended use The appliance is only intended to be installed and Any usage beyond this must be approved by the man- operated in sealed unvented heating systems that ufacturer for the individual case. comply with EN 12828, with due attention paid to the associated installation, service and operating instruc- Incorrect usage or operation of the appliance (e.g.
Page 8
Preparing for installation Preparing for installation Please note To prevent equipment damage, connect all pipework free of load and torque stress. Fig. 1 Expansion vessel G1 Cable entry area at the back Safety valve Accessories (connection sets) Heating flow G1 Without connection sets (accessories) ½...
Installation sequence Fitting the boiler and making connections Fitting the wall mounting bracket Note The enclosed screws and rawl plugs are only suitable for concrete. For other construction materials, use fix- ing materials that are suitable for 100 kg loads. Ø...
Installation sequence Fitting the boiler and making connections (cont.) Hooking the boiler onto the wall mounting bracket and levelling it Fig. 3 Note on step 4 Place the supplied circular level on the boiler and align boiler vertically using the adjusting screws.
The labels "System certificate" and "Skoberne GmbH flue system" enclosed with the technical documenta- Flue system installation instructions tion may only be used in conjunction with the Viessmann flue system made by Skoberne. Do not carry out commissioning until the following Danger conditions are met: Leaking or blocked flue systems or an insuffi- Free passage through the flue gas pipes.
Installation sequence Condensate connection 1. Pull the condensate hose far enough out of the boiler that no unnecessary bends are created inside the boiler. Check the tightness of the siphon con- nection. 2. Connect the condensate hose with a constant fall and a pipe vent to the public sewage system or to a neutralising system.
Page 13
Installation sequence Opening the control unit casing (cont.) Fig. 7...
Installation sequence Electrical connections Fig. 8 Radio clock receiver Heating circuit pump or boiler circuit pump Vitotrol 100 UTDB (only for constant temperature control units) When making this connection, remove jumper between "1" and "L". Vitotrol 100 UTA (only for constant temperature control units) Vitotrol 100 UTDB-RF wireless receiver When making this connection, remove jumper...
Installation sequence Electrical connections (cont.) Information on connecting accessories When connecting accessories observe the sep- arate installation instructions provided with them. Circulation pump at plug sÖ Rated current 2(1) A~ Rated voltage 230 V~ sÖ Fig. 9 Circulation pump Plug in 0 - 10 V connection at X4 Circulation pump at plug Rated current 2(1) A~...
Installation sequence Electrical connections (cont.) Plug EA1 extension Floating contact Floating contact EA1 extension When making this connection, remove jumper between 1 and L. Burner operation is load-dependent if the contact is closed. The boiler water is heated to the value set in coding address "9b"...
Installation sequence Electrical connections (cont.) External blocking via switching contact Connection options: Please note 'Live' contacts lead to short circuits or phase fail- Plug ■ Extension EA1 (accessory, see separate installation ure. ■ instructions). The external connection must be floating. Plug Extension EA1 Floating contact...
Installation sequence Electrical connections (cont.) Power supply for accessories at plug (230 V~) Where the boiler is installed in a wet area, the power If the total system current exceeds 6 A, connect one or supply connection for accessories outside the wet area more extensions directly to the mains supply via an must not be made at the control unit.
Installation sequence Electrical connections (cont.) Routing the connecting cables Please note If connecting cables touch hot components they will be damaged. When routing and securing connecting cables on site, ensure that the maximum permissible temperatures for these cables are not exceeded. Fig.
Installation sequence Closing the control unit casing and inserting the programming unit Fig. 15 Insert programming unit (packed separately) into the control unit support. Note The programming unit can also be inserted into a wall mounting base (accessories) near the boiler. Wall mounting base installation instructions...
Commissioning, inspection, maintenance Opening the boiler Fig. 16 Filling the heating system Fill water Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage. Flush the heating system thoroughly before ■ filling. Only use fill water of potable quality.
Commissioning, inspection, maintenance Filling the heating system (cont.) Total permissible hardness of the fill and top-up water Total heating output Specific system volume (Conversion rate 1 mol/m = 100 ppm) < 20 l/kW 20 l/kW to < 50 l/kW 50 l/kW ≥...
Commissioning, inspection, maintenance Selecting the language (if required) - only for… (cont.) Sprache Deutsch ê ç Bulgarski ê Cesky ê Dansk ê Wählen mit Fig. 19 Setting the time and date (if required) - only for weather-compensated control units The time and date need to be reset during commis- 3.
Commissioning, inspection, maintenance Venting the heating system (cont.) Activating the venting function Weather-compensated control unit Constant temperature control unit Service menu Service menu 1. Press OK and simultaneously for approx. 4 s. 1. Press OK and simultaneously for approx. 4 s. å...
Commissioning, inspection, maintenance Checking the gas type (cont.) For operation with natural gas no adjustment is 1. Determine the gas type and Wobbe index by asking ■ therefore required across the entire Wobbe index your local gas supply utility or LPG supplier. range.
Commissioning, inspection, maintenance Function sequence and possible faults (cont.) Gas train opens Fault EE Check the gas train (con- trol voltage 230 V) and gas supply pressure Ionisation current builds Fault EE Check the ionisation elec- Symbol trode adjustment and the gas line for airlocks.
Page 28
Commissioning, inspection, maintenance Checking the static and supply pressure (cont.) 1. Close the gas shut-off valve. 2. Undo screw inside test nipple "PE" on the gas train, but do not remove it, and connect the pres- sure gauge. 3. Open the gas shut-off valve. 4.
Commissioning, inspection, maintenance Max. heating output setting The maximum output for heating operation can be limited. The limit is set via the modulation range. The max. adjustable heating output is limited upwards by the boiler coding card. Weather-compensated control unit Constant temperature control unit Service menu Service menu...
Commissioning, inspection, maintenance Removing the burner and checking the burner gasket Fig. 24 1. Switch OFF the power supply and the ON/OFF 6. Undo gas supply pipe fitting switch at the control unit. 7. Undo six screws and remove the burner. 2.
Commissioning, inspection, maintenance Checking the burner gauze assembly and replacing it if required D 4x B 3x Fig. 25 1. Remove electrodes 5. Insert a new burner gauze assembly with a new gasket and secure with four Torx screws. 2. Undo three retaining clips on thermal insulation Note ring...
Commissioning, inspection, maintenance Checking the flue gas non-return device Fig. 26 1. Undo three screws and remove fan 4. Refit flue gas non-return device 2. Remove flue gas non-return device 5. Refit fan and secure with three screws. Torque: 3.0 Nm. 3.
Commissioning, inspection, maintenance Cleaning the heating surfaces Please note Note There should be no scratches or other damage Discolouration of the heat exchanger surface is a nor- on the heat exchanger surface that comes into mal sign of usage. It has no impact on the function and contact with hot gases.
Commissioning, inspection, maintenance Checking the neutralising system (if installed) Checking the diaphragm expansion vessel and system pressure Note 3. Top up with water until the charge pressure of the Carry out this test on a cold system. cooled system is 0.1 to 0.2 bar (10 to 20 kPa) higher than the pre-charge pressure of the dia- 1.
Commissioning, inspection, maintenance Checking combustion quality (cont.) 3. Set the lower heating output (see page 35). 4. Check the CO content. Should the actual value deviate from the aforementioned ranges by more than 1 %, implement steps on page 34. 5.
Page 36
Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) System version 1 One heating circuit without mixer A1, with/without DHW heating, with low loss header Fig. 31 ID: 4605139_1103_02 Vitodens 200-W Circulation pump for cylinder heating Outside temperature sensor (only for weather- DHW cylinder compensated control units) Cylinder temperature sensor...
Page 37
Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) System version 2 One heating circuit with mixer M2, with/without DHW heating, with low loss header Fig. 32 ID: 4605140_1103_02 Vitodens 200-W Temperature limiter to restrict the maximum tem- Outside temperature sensor perature of underfloor heating systems Flow temperature sensor M2...
Page 38
Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) System version 3 One heating circuit with mixer M2, with system separation, with/without DHW heating Fig. 33 ID: 4605141_1103_02 Vitodens 200-W Temperature limiter to restrict the maximum tem- Outside temperature sensor perature of underfloor heating systems Flow temperature sensor M2...
Page 39
Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) System version 4 One heating circuit without mixer, one heating circuit with mixer M2 (with extension kit), one heating circuit with mixer M3 (with extension kit) and low loss header (with/without DHW heating) Fig.
Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) System version 5 Multi boiler system with several heating circuits with mixer and low loss header (with/without DHW heating) Fig. 35 ID: 4605016_1103_04 Vitodens 200-W Extension kit for one heating circuit with mixer M2 Vitotronic 300-K Heating circuit with mixer M3 (heating circuit 3) Outside temperature sensor...
Page 41
Commissioning, inspection, maintenance Adjusting the heating curves (only for… (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Fig. 36 Slope setting ranges: Reduced set room temperature Underfloor heating systems: 0.2 to 0.8 ■ Low temperature heating systems: 0.8 to 1.6 ■...
Commissioning, inspection, maintenance Adjusting the heating curves (only for… (cont.) Extended menu: å 2. "Heating" 3. Select heating circuit. 4. "Heating curve" 5. "Slope" or "Level" 6. Select heating curve according to the system requirements. Outside temperature in °C Fig. 39 Changing the slope Changing the level (vertical parallel offset of the heating curve)
Commissioning, inspection, maintenance Connecting the control unit to the LON (cont.) Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom Viessmann system number, Viessmann system number, Viessmann system number, — Code "98:1". Code "98:1". Code "98:1". LON subscriber fault monitor- LON subscriber fault moni- LON subscriber fault moni- —...
Commissioning, inspection, maintenance Fitting the front panel Fig. 40 Note Ensure the locking screws are fitted before operating. Instructing the system user The system installer should hand the operating instruc- tions to the system user and instruct the user in oper- ating the system.
Code 1 Calling up coding level 1 Calling up coding level 1 On weather-compensated control units, codes are ■ displayed as plain text. Codes that have not been assigned due to the heat- ■ ing system equipment level or the setting of other codes are not displayed.
Code 1 General/group "1" (cont.) Coding Coding in the delivered condition Possible change System design 00:1 System version 1: 00:2 For system schemes, see the follow- One heating circuit without mixer ing table: A1 (heating circuit 1), without DHW 00:10 heating Value ad- System ver-...
Code 1 Boiler/group "2" (cont.) Coding in the delivered condition Possible change Burner service in 100 hours 21:0 No service interval (hours run) se- 21:1 The number of hours run before the lected burner should be serviced is adjust- 21:100 able from 100 to 10,000 h ≙...
Code 1 Solar/group "4" (cont.) Coding Coding in the delivered condition Possible change Speed control solar circuit pump 02:0 Solar circuit pump is not speed- 02:1 Solar circuit pump is speed-control- controlled. led with wave packet control. 02:2 Solar circuit pump is speed-control- led with PWM control.
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding Coding in the delivered condition Possible change Priority DHW heating A2:2 Cylinder priority applicable to heat- A2:0 Without cylinder priority applicable to ing circuit pump and mixer heating circuit pump and mixer A2:1 Cylinder priority only applicable to mixer...
Page 51
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Extended economy function mixer A7:0 Without mixer economy function A7:1 With mixer economy function (exten- (only for weather-compensated ded heating circuit pump logic): control units and heating circuit Heating circuit pump also "OFF": with mixer)
Page 52
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Min. flow temperature heating circuit C5:20 Electronic minimum flow tempera- C5:1 Minimum limit adjustable from 1 to ture limit 20 °C (only for weather- 127 °C (limited by boiler-specific pa- compensated control units) C5:127...
Page 53
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump control in “Only DHW” F6:25 In the "Only DHW" operating F6:0 In the "Only DHW" operating mode, mode, the circulation pump in the the circulation pump in the heating heating circuit connection set is circuit connection set is constantly...
Code 2 Calling up coding level 2 Calling up coding level 2 All codes are accessible in coding level 2. ■ Codes that have not been assigned due to the heat- ■ ing system equipment level or the setting of other codes are not displayed.
Code 2 General/group "1" (cont.) Coding Coding in the delivered condition Possible change 00:1 System version 1: 00:2 For system schemes, see the follow- One heating circuit without mixer ing table: A1 (heating circuit 1), without DHW 00:10 heating Value ad- System ver- Description dress 00: ...
Page 56
Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change 36:0 Function output at extension 36:1 Function output : Feed pump EA1: Fault message 36:2 Function output : DHW circula- tion pump 39:2 Function output : Circulation 39:0 Function output : DHW circulation pump for cylinder heating...
Page 57
Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change 3C:0 Function input DE3 at extension 3C:1 Function input DE3: Heating pro- EA1: Not assigned gram - changeover 3C:2 Function input DE3: External de- mand with set flow temperature. Flow temperature setting: Coding address 9b.
Page 58
Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change 53:1 Function connection of the in- 53:0 Function connection : Central ternal extension: DHW circulation fault message pump 53:2 Function connection : External heating circuit pump (heating circuit 53:3 Function connection : External cir-...
Page 59
The control unit transmits the out- unit is utilised internally (only for side temperature to the weather-compensated control Vitotronic 200-H units) 98:1 Viessmann system number (in 98:1 System number adjustable from 1 to conjunction with monitoring several systems via Vitocom 300) 98:5 99:0...
Code 2 Boiler/group "2" Select "Boiler" for weather-compensated control units Select "2" for constant temperature control unit (see (see page 54). page 54). Coding Coding in the delivered condition Possible change 01:1 Single boiler system (only for con- 01:2 Multi boiler system with stant temperature control units) Vitotronic 300-K 04:1...
Code 2 DHW/group "3" Select "DHW" for weather-compensated control units Select "3" for constant temperature control unit (see (see page 54). page 54). Coding Coding in the delivered condition Possible change 56:0 Set DHW temperature adjustable 56:1 Set DHW temperature adjustable from 10 to 60 °C from 10 to above 60 °C Note...
Code 2 DHW/group "3" (cont.) Coding in the delivered condition Possible change 6F:... Max. heating output for DHW heat- 6F:0 Max. heating output for DHW heat- ing in %, specified by the boiler ing adjustable from min. heating out- coding card 6F:100 put to 100 % 71:0...
Page 63
Frost protection function for solar 0b:1 Frost protection function for solar cir- circuit switched off. cuit switched on (not required with Viessmann heat transfer medium). 0C:1 Delta T monitoring switched on. 0C:0 Delta T monitoring switched off. No flow rate captured in the solar circuit, or flow rate too low.
Code 2 Solar/group "4" (cont.) Coding in the delivered condition Possible change 20:5 Thermostat function. 20:6 Thermostat function and auxiliary function. 20:7 Solar heating via external heat ex- changer without additional tempera- ture sensor. 20:8 Solar heating via external heat ex- changer with additional temperature sensor.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding Coding in the delivered condition Possible change A0:0 Without remote control A0:1 With Vitotrol 200A/200 RF (automat- ic recognition) A0:2 With Vitotrol 300A/300 RF or Vitocomfort 200 (automatic recogni- tion) A1:0 All possible settings at the remote...
Page 66
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Note "Important" observe for code "A3". A5:5 With heating circuit pump logic A5:0 Without heating circuit pump logic function (economy control): Heat- function ing circuit pump "OFF"...
Page 67
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A9:7 With pump idle time: Heating cir- A9:0 Without pump idle time cuit pump "OFF" if the set value is A9:1 With pump idle time, adjustable from altered through a change in oper- 1 to 15.
Page 68
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change d3:35 d4:0 Heating curve level = 0 d4:–13 Heating curve level adjustable from 13 to 40 (see page 40) – d4:40 d5:0 The external operating program d5:1 The external operating program changeover switches the operating...
Page 69
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change F6:25 In "Only DHW" operating mode, F6:0 In "Only DHW" mode, the boiler cir- the boiler circuit pump is constantly cuit pump is constantly off on (only for constant temperature F6:1 In "Only DHW"...
Diagnosis and service scans Service level Weather-compensated control unit Constant temperature control unit Calling up the service level Service menu: Service menu: 1. Press OK and simultaneously for approx. 4 s. 1. Press OK and simultaneously for approx. 4 s. å...
Diagnosis and service scans Diagnosis (cont.) Weather-compensated control unit Constant temperature control unit Calling up operating data Service menu: Service menu: 1. Press OK and simultaneously for approx. 4 s. 1. Press OK and simultaneously for approx. 4 s. å å...
Page 72
Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Flow rate sen- sor switching state 1: Flow rate too low or not present Subnet address/system num- Node address Number of LON subscribers SBVT config- Software ver- Neuron chip software version uration sion commu- nication cop-...
Page 73
Diagnosis and service scans Diagnosis (cont.) Brief scan Display Number of KM BUS subscribers Number of LON subscribers SNVT configu- Software version, Software version, ration communication coprocessor LON module 0: Auto 1: Tool Subnet address/system number Node address Burner control unit type Device type Flow switch Max.
Diagnosis and service scans Diagnosis (cont.) Brief scan Display OpenTherm extension (if installed) Software ver- DHW heating sta- External hook-up 0 - 10 V sion Display in % Checking outputs (relay test) Weather-compensated control unit 1. Press OK and simultaneously for approx. 4 s. 2.
Page 75
Diagnosis and service scans Checking outputs (relay test) (cont.) The following actuators (relay outputs) can be controlled subject to system design: Display Explanation All actuators are off Burner operated at minimum output; circulation pump is started Burner operated at maximum output; circulation pump is started Output active (boiler circuit pump) sÖ...
Troubleshooting Fault display Weather-compensated control unit In the event of a fault, red fault indicator flashes. Calling up acknowledged faults " " flashes on the display and "Fault" is shown. Select "Fault" in the standard menu. The current faults will be displayed in a list. Calling up fault codes from the fault memory (fault history) The 10 most recent faults (including resolved ones)
Troubleshooting Fault display (cont.) The 10 most recent faults (including resolved ones) 2. Select " " and activate fault history with OK. ã are saved and can be called up. 3. Select fault messages with / . Calling up fault codes from the fault memory (fault history) Deleting fault history The 10 most recent faults (including those remedied)
Page 78
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Burner blocked Lead break, boiler Check boiler water tem- water temperature perature sensors (see sensor page 87) Mixer closes Short circuit, flow Check flow temperature temperature sen- sensor (see page 90) sor, heating circuit...
Page 79
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics No solar DHW heat- Lead break, cylin- Check temperature sen- der temperature on solar control sensor module or sensor on the Vitosolic. Control mode No flow rate in col- Check solar circuit pump lector circuit or flow and solar circuit.
Page 80
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Control mode without Communication er- Check connections, ca- remote control ror, remote control ble, coding address "A0" Vitotrol heating cir- in "Heating circuit" cuit 1 (without mix- group and remote control settings (see page 101).
Page 81
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Control mode Communication er- Check connections, ror, Vitocom 100, Vitocom 100 and coding type GSM address "95" in group "General"/1 Control mode Communication er- Replace LON communi- ror, LON communi- cation module cation module...
Page 82
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Burner in a fault state Heating water flow Ensure adequate circula- rate too low during tion volume. calibration. Flow Check flow switch. switch caused Remove scaling, block- shutdown.
Page 83
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Burner in a fault state Ionisation current Check flue system; reme- outside permissible dy flue gas recirculation if range during cali- required. bration (deviation In open flue operation, from previous level prevent high incidence of too great)
Page 84
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Burner in a fault state Flame is lost imme- Check gas supply (gas diately after it has pressure and gas flow formed (during the switch). safety time).
Page 85
Troubleshooting Fault codes (cont.) Displayed Const. Weath.- System characteris- Cause Measures fault code comp. tics Burner in a fault state Boiler coding card Insert the boiler coding and additional fault is missing card. b7 is displayed Press reset button R. Replace control unit if fault persists.
Troubleshooting Repair Checking the outside temperature sensor (weather-compensated control unit) Fig. 46 1. Pull plug "X3" from the control unit. 2. Test the resistance of the outside temperature sen- sor across terminals "X3.1" and "X3.2" on the dis- connected plug and compare it with the curve. 3.
Troubleshooting Repair (cont.) Checking the boiler water temperature sensors, cylinder temperature sensor or flow tempera- ture sensor for the low loss header § § Fig. 48 Boiler water temperature sensor 1 ■ Pull the leads from boiler water temperature sen- A and check the resistance.
Troubleshooting Repair (cont.) 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in the case of severe deviation. Danger The boiler water temperature sensor is immersed in the heating water (risk of scald- ing). Drain the boiler before replacing the sensor.
Troubleshooting Repair (cont.) Checking the fuse Fig. 52 1. Switch off the power. 3. Remove cover 2. Release the side closures and pivot the control unit 4. Check fuse F1 (see connection and wiring dia- down. gram). Extension kit, mixer Checking the setting of rotary selector S1 Note The mixer motor can also be started via the actuator...
Troubleshooting Repair (cont.) Changing the rotational direction of the mixer motor (if required) 1. Remove the upper casing cover of the extension kit. Danger An electric shock can be life-threatening. Before opening the boiler, disconnect from the mains voltage, e.g. at the fuse or the mains isolator.
Function description Constant temperature control unit °C Fig. 55 Heating mode The selected set boiler water temperature will be main- The electronic temperature limiter inside the burner tained when a demand is being raised by the room control unit limits the boiler water temperature. thermostat and the heating program is set to DHW and Flow temperature setting range: 20 to 74 °C.
Function description Weather-compensated control unit (cont.) The electronic temperature limiter inside the burner control unit limits the boiler water temperature. DHW heating The burner and the circulation pump for cylinder heat- In the delivered condition, the set boiler water temper- ing are started if the cylinder temperature lies 2.5 K ature is 20 K higher than the set DHW temperature below the set cylinder temperature.
Function description Internal extensions (accessories) (cont.) Internal extension H2 Fig. 58 The internal extension is integrated into the control unit Heating circuit pump for heating circuit without mixer ■ casing. The following alternative functions can be con- (code "53:2") nected to relay output .
Function description External extensions (accessories) Extension AM1 Fig. 59 Circulation pump A Power supply for additional accessories fÖ Circulation pump KM BUS Power supply fÖ Functions Select the output functions by means of the codes on the boiler control unit. One of the following circulation pumps can be connec- ted to each of the connections A1 and A2: Heating circuit pump for the heating circuit without...
Function description External extensions (accessories) (cont.) Extension EA1 Fig. 60 Power supply fÖ Fuse/MCB Power supply for additional accessories fÖ Digital input 1 Central fault message/feed pump/DHW circu- Digital input 2 lation pump (potential-free) Digital input 3 KM BUS 10 V 0 10 V input –...
Function description External extensions (accessories) (cont.) The effect of the operating program changeover is Analogue input 0 10 V – selected via coding address d5 in the "Heating cir- cuit" group. The 0 10 V hook-up provides an additional set boiler –...
Function description Control functions (cont.) Heating program - changeover Code Changeover via input DE1 d8:1 Changeover via input DE2 d8:2 Changeover via input DE3 d8:3 You can select which direction the heating program changeover takes in coding address "d5" in the "Heat- ing circuit"...
Function description Control functions (cont.) External demand Code Input DE1 3A:2 Input DE2 3b:2 Input DE3 3C:2 The effect on the internal circulation pump is selected The minimum set boiler water temperature in case of in coding address "3F" in the "General" group. external demand is selected in coding address "9b"...
Page 99
Function description Control functions (cont.) Temperature profile 3: Code "F1:3" Days Fig. 63 Temperature profile 4: Code "F1:4" Days Fig. 64 Temperature profile 5: Code "F1:5" Days Fig. 65 Temperature profile 6: Code "F1:6" Days Fig. 66 Temperature profile 7: Code "F1:15" Days Fig.
Function description Control functions (cont.) Raising the reduced room temperature During operation with 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 coding addresses raised subject to the outside temperature.
Function description Control functions (cont.) Example using the settings in the delivered condition Time in h Fig. 69 Start of operation with standard room temperature Set boiler water or flow temperature in accordance with the selected heating curve Set boiler water or flow temperature in accordance with coding address "FA": C + 20 % = 60 °...
Function description Electronic combustion control unit The electronic combustion controller utilises the physi- To check the combustion quality, the CO content or cal correlation between the level of the ionisation cur- the O content of the flue gas is measured. The pre- rent and the air ratio .
Designs Connection and wiring diagram Internal connections – Fig. 70 Main PCB Flow switch X... Electrical interfaces Ignition unit Boiler water temperature sensor Fan motor § a-Ö Boiler water temperature sensor A Fan motor control § a-Ö Ionisation electrode Modulation coil a:Ö...
Designs Connection and wiring diagram External connections – Fig. 71 A1 Main PCB Flow temperature sensor, low loss header A2 Power supply unit Cylinder temperature sensor A3 Optolink (plug on the cable harness) A4 Burner control unit Heating circuit pump or boiler circuit pump sÖ...
Parts lists Ordering parts The following information is required: Standard parts are available from your local supplier. Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the ■ assembly (from this parts list) Overview of the assemblies Fig.
Page 112
Commissioning/service reports Settings and actual values Set value Commissioning Maintenance/ Service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pressure) for natural gas E mbar 17.4-25 1.74-2.5 for natural gas LL mbar 17.4-25 1.74-2.5 for LPG mbar 42.5-57.5 4.25-5.75...
Page 113
Specification Specification Rated voltage: 230 V~ Electronic temperature limiter setting: 82 °C (fixed) Rated frequency: 50 Hz Temperature limiter setting: 100 °C (fixed) Rated current: 6.0 A Backup fuse (power supply): max. 16 A Safety category: IP rating: IP X 4 D to EN 60529 Permissible ambient temperature During operation: 0 to +40 °C...
Certificates Declaration of conformity Declaration of Conformity for the Vitodens 200-W We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, confirm as sole responsible body that the product Vitodens 200-W complies with the following standards: EN 625 EN 60 335-1...
Keyword index Keyword index Acknowledging a fault display........76 Heating circuit assignment........101 Heating curve............. 40 Heating curve level.............41 Boiler, opening............22 Heating curve slope........... 41 Boiler water temperature sensor ....... 87 Heating output, setting..........29 Boosting DHW heating..........92 Heating program changeover........96 Brief scans..............
Page 116
Venting............... 23 Venting program............98 Applicability These service instructions apply for appliances with the following serial numbers (see type plate): 7510390 7510391 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB...
Need help?
Do you have a question about the Vitodens 200-W Series and is the answer not in the manual?
Questions and answers