Viessmann Vitodens 222-F Installation And Service Instructions For Contractors
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Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Gas condensing storage combi boiler
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VIESMANN
Installation and service instructions
for contractors
Vitodens 222-F
Type B2TA, 3.2 to 35 kW
Gas condensing storage combi boiler
Gas Council No.
41-819-15; 41-819-16; 41-819-17
Natural gas and LPG versions
For applicability, see the last page
VITODENS 222-F
Please keep safe.
5773 216 GB
10/2015

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  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 222-F Type B2TA, 3.2 to 35 kW Gas condensing storage combi boiler Gas Council No. 41-819-15; 41-819-16; 41-819-17 Natural gas and LPG versions For applicability, see the last page VITODENS 222-F Please keep safe.
  • Page 2 ■ installer or a qualified person authorised by the For replacements, use only original spare parts installer. supplied or approved by Viessmann. Regulations to be observed Safety instructions for operating the system National installation regulations If you smell gas ■...
  • Page 3 Safety instructions Safety instructions (cont.) What to do if water escapes from the appliance Danger When water escapes from the appliance there is a risk of electrocution. Switch off the heating system at the external iso- lator (e.g. fuse box, domestic power distribu- tion).

  • Page 4: Table Of Contents

    Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Vitodens 222-F, type B2TA ..............■ 2. Preparing for installation Preparing for boiler installation .............. Safety assembly to DIN 1988 and EN 806 on the cold water connec- ■...
  • Page 5 Index Index Maintenance ..................89 Putting the control unit into the service position ......... 90 ■ Drain boiler on the heating water side ..........90 ■ Checking the outside temperature sensor .......... 91 ■ Checking the boiler temperature sensor, cylinder temperature sen- ■...
  • Page 6 Index Index (cont.) 14. Certificates Declaration of conformity ............... 139 Manufacturer's certificate according to the 1st BImSchV [Germany] ..139 15. Keyword index ........................140...

  • Page 7: Information Disposal Of Packaging

    Please dispose of packaging waste in line with statu- DE: Use the disposal system organised by tory regulations. Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of by the HVAC contractor.

  • Page 8: Product Information

    Integral diaphragm expansion vessel (12 l capacity) Preset for operation with natural gas E and natural gas LL. The Vitodens 222-F may only be delivered to countries listed on the type plate. For deliveries to other coun- tries, approved contractors must arrange individual approval on their own initiative and in accordance with the law of the country in question.

  • Page 9: Preparing For Installation Preparing For Boiler Installation

    Preparing for installation Preparing for boiler installation Use a connection set or connection kit, available as an Note accessory, to make the connection on the gas and Fit safety equipment in accordance with the national water sides. regulations. Fitting accessories Please note Fit all accessories that are installed at the back of the Avoid appliance damage.
  • Page 10 Preparing for installation Preparing for boiler installation (cont.) Note Rated heating output 3.2 - 26 kW 5.2 - 35 kW All height dimensions have a tolerance of +15 mm due range to the adjustable feet. n (mm) 1465 1665 p (mm) 1526 1726 q (mm)

  • Page 11: Safety Assembly To Din 1988 And En 806 On The Cold Water Connection

    Preparing for installation Preparing for boiler installation (cont.) Safety assembly to DIN 1988 and EN 806 on the cold water connection GH D D H L D N K Fig. 4 Safety assembly (accessory for connection sets for Drain unfinished walls) Cold water Safety valve Drinking water filter...

  • Page 12: Installing The Boiler Removing The Front Panels

    Installing the boiler Removing the front panels Fig. 5...

  • Page 13: Siting And Levelling The Boiler

    Installing the boiler Siting and levelling the boiler SW17 Fig. 6...

  • Page 14: Connections On The Heating Water And Dhw Side

    ■ system" labels enclosed with the technical documen- tation may only be used in conjunction with the Viessmann flue system made by Skoberne. ■ During installation and positioning of the flue system, observe Part L and BS 5440 building regulations [GB only].

  • Page 15: Gas Connection

    Installing the boiler Gas connection Fig. 8 Information on operation with LPG 3. Purge the gas line. When installing the boiler in rooms below ground level we recommend fitting an external safety solenoid Conversion to alternative gas types: valve. See page 31. 1.

  • Page 16: Opening The Control Unit Enclosure

    Installing the boiler Opening the control unit enclosure Fig. 9 Electrical connections Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing any work, touch earthed objects such as heating or water pipes to dis- charge static loads.
  • Page 17 Installing the boiler Electrical connections (cont.) 230V~ 230V~ 3 2 1 Fig. 10 Radio clock receiver Jumper Connections to 230 V~ plugs Connections to LV plugs Power supply X3 Plug X3 can be pulled out to make assembly eas- fÖ Power supply for accessories ier.

  • Page 18: Outside Temperature Sensor

    Installing the boiler Electrical connections (cont.) Outside temperature sensor For fitting the wireless outside temperature sensor Not immediately below balconies or gutters ■ (wireless accessory): ■ Never render over Wireless base station installation and service Outside temperature sensor connection instructions 2-core lead, length max.

  • Page 19: External Blocking Via Switching Contact

    Installing the boiler Electrical connections (cont.) ≙ Please note No default set boiler water temperature – ≙ Set value 10 °C ≙ Ensure DC separation between the earth con- 10 V Set value 100 °C ductor and the negative pole of the on-site volt- age source.

  • Page 20: Power Supply For Accessories At Plug Lh (230 V~)

    Installing the boiler Electrical connections (cont.) Power supply for accessories at plug (230 V~) Where the boiler is sited in a wet area, accessories If the total system current exceeds 6 A, connect one or outside the wet area must not be connected to the more extensions via an ON/OFF switch directly to the mains at the control unit.

  • Page 21: Power Supply Fö

    Installing the boiler Electrical connections (cont.) Power supply fÖ Danger Install an isolator in the power cable to provide ■ Incorrectly executed electrical installations can omnipolar separation from the mains for all active result in injuries from electrical current and in conductors, corresponding to overvoltage cate- appliance damage.

  • Page 22: Closing The Control Unit Enclosure

    Installing the boiler Closing the control unit enclosure Fig. 15 Insert the 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...

  • Page 23: Fitting The Front Panels

    Installing the boiler Fitting the front panels Fig. 16...

  • Page 24: Commissioning, Inspec-Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • • 1. Removing the front panels....................26 • 2. Checking the power supply • 3. Filling the heating system....................26 • 4. Filling the DHW cylinder on the DHW side..............27 •...
  • Page 25 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • • 40. Checking the external LPG safety valve (if installed) • 41. Matching the control unit to the heating system............46 • 42.

  • Page 26: Removing The Front Panels

    Commissioning, inspection, maintenance Removing the front panels See page 12 Checking the power supply Filling the heating system Fill water Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to appli- ance damage. ■ Flush the heating system thoroughly before filling.

  • Page 27: Filling The Dhw Cylinder On The Dhw Side

    Commissioning, inspection, maintenance Filling the heating system (cont.) 4. Fill the heating system via boiler drain & fill valve 5. If the control unit was already on before filling in the heating return (depending on the connec- began: tion set either on the side or above the boiler). Mini- Switch the control unit ON and activate the fill pro- mum system pressure >...

  • Page 28: Setting The Time And Date - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Selecting the language - only for… (cont.) 3. "Sprache" Sprache 4. Select the required language with Deutsch ê ç Bulgarski ê Cesky ê Dansk ê Wählen mit Fig. 19 Setting the time and date - only for weather-compensated control units The time and date need to be reset during commis- 3.

  • Page 29: Venting The Boiler

    Commissioning, inspection, maintenance Venting the boiler 1. Close the shut-off valves on the heating water side. 2. Remove cover panel 3. Push the drain hose onto air vent valve and con- nect to a drain. 4. Open air vent valve and fill valve in the heat- ing return and vent (flush) using mains pressure...

  • Page 30: Filling The Siphon With Water

    Commissioning, inspection, maintenance Venting the heating system (cont.) 4. Check the system pressure. 5. Open the gas shut-off valve. 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.

  • Page 31: Designating Heating Circuits - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Checking all connections on the heating water side and DHW side for leaks Designating heating circuits - only for weather-compensated control units In the delivered condition, the heating circuits are des- Enter names for heating circuits: ignated "Heating circuit 1", "Heating circuit 2" and Operating instructions "Heating circuit 3"...

  • Page 32: Checking The Static Pressure And Supply Pressure

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure Danger 4. Check the static pressure and record the actual CO formation as a result of incorrect burner value in the report on page 136. adjustment can have serious health implications. Set value: max.

  • Page 33: Function Sequence And Possible Faults

    Commissioning, inspection, maintenance Function sequence and possible faults Display Measure Control unit issues a heat Increase set value and en- demand sure heat is drawn off Fan starts After approx. 51 s fault F9 Check the fan, fan connect- ing cables, power at the fan and fan control Ignition Fault EE...

  • Page 34: Setting The Maximum Heating Output

    Commissioning, inspection, maintenance Setting the maximum heating output 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...

  • Page 35: Removing The Burner

    Commissioning, inspection, maintenance Removing the burner Fig. 26 1. Switch OFF the power supply and the ON/OFF 4. Undo gas supply pipe fitting switch at the control unit. 5. Undo four screws and remove the burner. 2. Close the gas shut-off valve and safeguard against reopening.

  • Page 36: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Checking the burner gasket and burner gauze assembly Check burner gasket and burner gauze assembly for possible damage and replace if required. Fig. 27 1. Remove electrodes 5. Fit thermal insulation ring 2. Undo 2 retaining clips on thermal insulation ring 6.

  • Page 37: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Checking and adjusting the ignition and ionisation electrodes ±1 Fig. 28 Ignition electrodes Ionisation electrode 1. Check the electrodes for wear and contamination. 3. Check the electrode gaps. If the gaps are not as specified or the electrodes are damaged, replace 2.
  • Page 38 Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) Fig. 30 1. Check at the siphon that the condensate can drain 6. Clean the siphon. freely. 7. Fill siphon with water and reassemble with retaining 2. Remove retaining clip clip 3.

  • Page 39: Installing The Burner

    Commissioning, inspection, maintenance Installing the burner Fig. 31 1. Insert the burner and tighten screws crosswise. 4. Connect the electrical cables/leads: Torque: 8.5 Nm ■ Fan motor Ionisation electrode ■ 2. Fit gas supply pipe with a new gasket. ■ Gas train Torque: 30 Nm ■...

  • Page 40: Checking The Anode Earth Current With An Anode Tester

    Commissioning, inspection, maintenance Checking the anode connection (cont.) Fig. 32 Magnesium anode Earth cable Checking the anode earth current with an anode tester Note We recommend checking the magnesium anode func- tion annually. This function test can be carried out with- out interrupting operation, by measuring the earth cur- rent with an anode tester.

  • Page 41: Draining The Boiler On The Dhw Side

    Commissioning, inspection, maintenance Checking the anode earth current with an anode… (cont.) 3. Connect tester (up to 5 mA) in series between tab and earth cable ■ If the current measures > 0.3 mA the magnesium anode is OK. If the current measures < 0.3 mA or if there is no ■...

  • Page 42: Checking And Replacing The Magnesium Anode (If Required)

    Commissioning, inspection, maintenance Cleaning the loading cylinder (cont.) 3. Disconnect the loading cylinder from the pipework 5. Use a chemical cleaning agent to remove hard to prevent contamination from entering the pipe- deposits that cannot be removed with a high pres- work.

  • Page 43: Checking The Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Checking the expansion vessel and system pressure Fig. 37 Note Check whether the installed expansion vessel is ade- The expansion vessel can lose some of its charge quate for the system water volume (GB only). pressure over time. When the boiler heats up, the pressure gauge indicator may rise to 2 or 3 bar (0.2 or 0.3 MPa).

  • Page 44: Checking The Pre-Charge Pressure And The Dhw Expansion Vessel (If Installed)

    Commissioning, inspection, maintenance Checking the pre-charge pressure and the DHW expansion vessel (if instal- led) 1. Check the static pressure of the DHW line down- stream of the pressure reducer and adjust if required. Set value: max. 3.0 bar (0.3 MPa). 2.
  • Page 45 Commissioning, inspection, maintenance Checking the combustion quality (cont.) If the actual CO or O values lie outside their respec- 1. Connect a flue gas analyser at flue gas port the boiler flue connection. tive ranges, proceed as follows: ■ Check the balanced flue system for tightness; see 2.

  • Page 46: Matching The Control Unit To The Heating System

    Accessories installation and service instruc- tions System version 1 One heating circuit without mixer A1 Fig. 40 Vitodens 222-F Vitotrol 100 (only for constant temperature control Outside temperature sensor (only for weather- units) compensated control units) Heating circuit without mixer A1 (heating circuit 1)
  • Page 47 Matching the control unit to the heating system (cont.) System version 2 One heating circuit with mixer M2 and low loss header Fig. 41 Vitodens 222-F Flow temperature sensor M2 Outside temperature sensor Heating circuit pump M2 Heating circuit with mixer M2 (heating circuit 2)
  • Page 48 (cont.) System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 Fig. 42 Vitodens 222-F Flow temperature sensor M2 Outside temperature sensor Heating circuit pump M2 Heating circuit without mixer A1 (heating circuit 1)
  • Page 49 (cont.) System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation Fig. 43 Vitodens 222-F Flow temperature sensor M2 Outside temperature sensor Heating circuit pump M2 Heating circuit without mixer A1 (heating circuit 1)
  • Page 50 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. 44 Vitodens 222-F Heating circuit with mixer M3 (heating circuit 3) Outside temperature sensor...

  • Page 51: Adjusting Heating Curves

    Commissioning, inspection, maintenance Adjusting heating curves Only for weather-compensated control units The heating curves illustrate the relationship between Note the outside temperature and the boiler water or flow If the heating system includes heating circuits with mix- temperature. ers, then the flow temperature of the heating circuit To put it simply, the lower the outside temperature, the without mixer is higher by a selected differential (8 K in higher the boiler water or flow temperature.

  • Page 52: Connecting The Control Unit To The Lon

    Commissioning, inspection, maintenance Adjusting heating curves (cont.) Reduced set room temperature Fig. 47 Example 2: Adjustment of the reduced set Outside temperature in °C room temperature from 5 °C to 14 °C Fig. 48 Boiler water temperature or flow temperature in °C Outside temperature in °C Changing the slope Set room temperature in °C...

  • Page 53: Scanning And Resetting The "Service" Display

    Control unit receives outside — temperature. temperature. temperature. Set code "97:2". Set code "97:1". Set code "97:1". 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- —...

  • Page 54: Fitting The Cover Panel And Front Panels

    Commissioning, inspection, maintenance Scanning and resetting the "Service" display (cont.) Weather-compensated control unit Constant temperature control unit After the service has been carried out: Reset the codes Service menu: Reset code "24:1" in group 2 to "24:0". 1. Press OK and simultaneously for approx.

  • Page 55: Codes Coding Level 1

    Codes Coding level 1 Calling up coding level 1 On weather-compensated control units, codes are ■ displayed as plain text. ■ Codes that are not assigned, due to the heating sys- tem equipment level or the setting of other codes, are not displayed.
  • Page 56 Codes Coding level 1 (cont.) Coding Coding in the delivered condition Possible change System design 00:2 One heating circuit without mixer 00:4 For system schemes, see the follow- A1 (heating circuit 1) ing table: 00:10 Value, ad- Description dress 00: ... One heating circuit without mixer A1 (heating circuit 1) (code is set automatically) One heating circuit with mixer M2 (heating circuit 2) One heating circuit without mixer A1 (heating circuit 1)

  • Page 57: Boiler"/Group 2

    Codes Coding level 1 (cont.) Coding in the delivered condition Possible change Lock out controls 8F:0 Control in standard menu and in 8F:1 Control in standard menu and in ex- extended menu is enabled. tended menu is locked. Emissions test mode can be ena- Note bled.

  • Page 58: Heating Circuit

    Codes Coding level 1 (cont.) Coding Coding in the delivered condition Possible change Enable DHW circulation pump 73:0 DHW circulation pump: "ON" ac- 73:1 During time program cording to time program (only for "ON" from once per hour for 5 min to weather-compensated control 73:6 "ON"...
  • Page 59 Codes Coding level 1 (cont.) Coding in the delivered condition Possible change Extended economy function mixer A7:0 Only for heating circuit with mixer: A7:1 With mixer economy function (exten- Without mixer economy function ded heating circuit pump logic): (only for weather-compensated Heating circuit pump also "OFF": control units) If the mixer has been trying to...
  • Page 60 Codes Coding level 1 (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 in operation 127 °C (limited by boiler-specific pa- with standard room temperature;...
  • Page 61 Codes Coding level 1 (cont.) Coding in the delivered condition Possible change Party mode time limit F2:8 Time limit for party mode or exter- F2:0 No time limit. nal operating program changeover F2:1 Time limit adjustable from 1 to 12 h via button: 8 h (only for weather- compensated control units) F2:12...

  • Page 62: Coding Level 2

    Codes Coding level 1 (cont.) Coding in the delivered condition Possible change Duration set flow temperature increase Fb:60 Duration for raising the set boiler Fb:0 Time period adjustable from 0 to water temperature or set flow tem- 300 min. perature (see coding address "FA") Fb:300 60 min.

  • Page 63: General"/Group 1

    Codes Coding level 2 (cont.) "General"/Group 1 Select "General" for weather-compensated control Select "1" for constant temperature control unit (see units (see page 62). page 62). Coding Coding in the delivered condition Possible change 00:2 One heating circuit without mixer 00:4 For system schemes, see the follow- A1 (heating circuit 1)
  • Page 64 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change Set value setting: Coding address "9b" in this group. Internal circulation pump function: Coding address "3F" in this group. 3A:3 External blocking. Internal circulation pump function: Coding address "3E" in this group. 3A:4 External blocking with fault message input.
  • Page 65 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change 3C:6 Brief operation of DHW circulation pump (pushbutton function). Adjustment of DHW circulation pump runtime: Coding address "3d" in this group 3d:5 Runtime of DHW circulation pump 3d:1 DHW circulation pump runtime ad- during brief operation: 5 min justable from 1 to 60 min...
  • Page 66 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change Control unit is fault manager (only for weather-compensated control units) 7b:1 With LON communication module: 7b:0 Does not transmit time Control unit transmits the time (on- ly for weather-compensated con- trol units) 7F:1 Detached house (only for weather-...

  • Page 67: Boiler"/Group 2

    (cont.) Coding in the delivered condition Possible change 98:1 With LON communication module: 98:1 System number adjustable from 1 to Viessmann system number (in conjunction with monitoring of sev- 98:5 eral systems via Vitocom 300) 99:0 Do not adjust 9A:0...

  • Page 68: Dhw"/Group 3

    Codes Coding level 2 (cont.) Coding in the delivered condition Possible change 28:0 No burner interval ignition 28:1 Time interval adjustable from 1 h to 24 h. The burner is force-started for 28:24 30 s at a time (only when operating with LPG).

  • Page 69: Heating Circuit

    Codes Coding level 2 (cont.) Coding in the delivered condition Possible change 63:0 Without auxiliary function for DHW 63:1 Auxiliary function: 1 x daily heating (only for constant tempera- 63:2 Every 2 days to every 14 days ture control units) 63:14 63:15 2 x daily...
  • Page 70 Codes Coding level 2 (cont.) Parameter Heating circuit pump address A3:... "ON" "OFF" 10 °C 8 °C – – – 9 °C 7 °C – – – 8 °C 6 °C – – – 7 °C 5 °C – – –...
  • Page 71 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change A6:36 Extended economy control disa- A6:5 Extended economy mode enabled; bled (only for weather-compensa- i.e. at a variably adjustable value be- ted control units) A6:35 tween 5 and 35 °C, plus 1 °C, the burner and heating circuit pump stop and the mixer closes.
  • Page 72 Codes Coding level 2 (cont.) Parameter address With heating circuit pump logic function: b5:... Heating circuit pump "OFF" Heating circuit pump "ON" + 5 K < RT + 4 K > actual actual + 4 K < RT + 3 K >...
  • Page 73 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change d8:3 Operating program changeover via input DE3. E1:1 Do not adjust E2:50 With remote control: E2:0 Display correction – No display correction for the actual room temperature (only for weath- E2:49 Display correction 0.1 K...
  • Page 74 Codes Coding level 2 (cont.) Coding in the delivered condition Possible change Note Observe settings in coding ad- dresses "3A", 3b and "3C" in group "General", and "d5" and "d8" in group "Heating circuit...". F5:12 Run-on time of the internal circula- F5:0 No run-on time for the internal circu- tion pump in heating mode: 12 min...

  • Page 75: Diagnosis And Service Service Menu

    Diagnosis and service scans Service menu Weather-compensated control unit Constant temperature control unit Calling up the service menu 1. Press OK and simultaneously for approx. 4 s. 1. Press OK and simultaneously for approx. 4 s. å å 2. Select required menu. See following diagram. "...

  • Page 76: Brief Scan

    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 77 Diagnosis and service scans Diagnosis (cont.) Row (brief Field scan) Internal details for calibration Software ver- Software ver- sion, AM1 ex- sion, EA1 exten- tension sion Subnet address/system num- Node address Number of LON subscribers SBVT config- Software ver- Software version, neuron chip uration sion, commu- nication cop-...
  • Page 78 Diagnosis and service scans Diagnosis (cont.) For explanations of individual scans, see the following table: Brief scan Display System scheme Software version Software version Control unit Programming unit Adjusted outside temperature Set boiler water temperature Common demand temperature Set cylinder temperature Number of KM BUS subscribers Number of LON subscribers SNVT configu-...

  • Page 79: Checking Outputs (Actuator Test)

    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 (actuator test) Weather-compensated control unit 1. Press OK and simultaneously for approx. 4 s. å...
  • Page 80 Diagnosis and service scans Checking outputs (actuator test) (cont.) The following actuators (relay outputs) can be controlled subject to system design: Display Explanation All actuators have been switched off. Burner operates at minimum output; internal pump starts. Burner operates at maximum output; internal pump starts. Internal output active (internal circulation pump) sÖ...

  • Page 81: Troubleshooting Fault Display

    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)

  • Page 82: Fault Codes

    Troubleshooting Fault display (cont.) Calling up acknowledged faults 1. Press OK and simultaneously for approx. 4 s. å Press OK for approx. 4 s. 2. Select " " and activate fault history with OK. ã The 10 most recent faults (including resolved ones) are saved and can be called up.
  • Page 83 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed comp. tics Mixer closes Short circuit, flow Check flow temperature temperature sen- sensor (see page 97) sor, heating circuit 2 (with mixer) Mixer closes Short circuit, flow Check flow temperature temperature sen- sensor (see page 97)
  • Page 84 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed comp. tics Control mode as per Internal fault Replace the control unit delivered condition Burner blocked Boiler coding card Plug in or replace the boil- fault er coding card. Burner blocked Lead break, flue Check the flue gas tem-...
  • Page 85 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed comp. tics Control mode Communication er- Check connections ror, AM1 extension Without AM1 extension: Set code "32:0" in group "General"/1. Control mode Communication er- Check OpenTherm exten- ror, OpenTherm sion extension...
  • Page 86 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed comp. tics Control mode without Lead break, room Check room temperature room influence temperature sen- sensor for heating circuit sor, heating circuit 3 and remote control con- 3 (with mixer) figuration (see page 132) Control mode...
  • Page 87 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed 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 (excessive In open flue operation, deviation from pre- prevent high incidence of vious level)
  • Page 88 Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed 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 switch). safety time). Check balanced flue sys- tem for flue gas recircula- tion.

  • Page 89: Maintenance

    Troubleshooting Fault codes (cont.) Fault code Const. Weather- System characteris- Cause Measures displayed comp. tics Burner in a fault state Burner control unit Check ignition electrodes fault and connecting cables. Check whether a strong interference (EMC) field exists near the appliance. Press reset button R.

  • Page 90: Putting The Control Unit Into The Service Position

    Troubleshooting Maintenance (cont.) Putting the control unit into the service position If required for commissioning and servicing, the control unit can be put in a different position. Fig. 54 Drain boiler on the heating water side Fig. 55 1. Close the shut-off valves on the heating water side. 3.

  • Page 91: Checking The Outside Temperature Sensor

    Troubleshooting Maintenance (cont.) Checking the outside temperature sensor Fig. 56 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.

  • Page 92: Checking The Boiler Temperature Sensor, Cylinder Temperature Sen- Sor Or Flow Temperature Sensor For Low Loss Header

    Troubleshooting Maintenance (cont.) Checking the boiler temperature sensor, cylinder temperature sensor or flow temperature sen- sor for low loss header Fig. 58 ■ Boiler water temperature sensor Pull out the leads at boiler water temperature sen- and check the resistance. Cylinder temperature sensor ■...

  • Page 93: Checking The Outlet Temperature Sensor

    Troubleshooting Maintenance (cont.) 2. Check the sensor resistance and compare it with the curve. 3. In the event of severe deviation replace the sensor. Danger The boiler water temperature sensor is directly immersed in the heating water (risk of scalding). Drain the boiler on the heating water side 10 30 50 70 90 110 before replacing the sensor.

  • Page 94: Checking The Plate Heat Exchanger

    Troubleshooting Maintenance (cont.) Checking the plate heat exchanger Fig. 62 1. Shut off and drain the boiler on the heating water 5. Undo 2 screws and pull out plate heat and DHW sides. exchanger to the front. 2. Release side fasteners and pivot control unit for- 6.

  • Page 95: Checking The Temperature Limiter

    Troubleshooting Maintenance (cont.) Fig. 63 1. Pull out leads at flue gas temperature sensor 2. Check the sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. 10 30 50 70 90 110 Temperature in °C Fig.

  • Page 96: Checking The Fuse/Mcb

    Troubleshooting Maintenance (cont.) 1. Pull out the leads at temperature limiter 2. Check the continuity of the temperature limiter with a multimeter. 3. Remove faulty temperature limiter. 4. Coat the new temperature limiter with heat conduct- ing paste and install it. 5.

  • Page 97: Mixer Extension Kit

    Troubleshooting Maintenance (cont.) Mixer extension kit Checking the setting of rotary selector S1 Note The mixer motor can also be started via the actuator The rotary selector on the PCB of the extension kit test (see chapter "Checking outputs"). defines the assignment to the relevant heating circuit. Observe the rotational direction of the mixer motor dur- ing its self-test.

  • Page 98: Checking The Vitotronic 200-H (Accessories)

    Troubleshooting Maintenance (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 subscriber check at the boiler control unit (see page 53).

  • Page 99: Parts Lists Overview Of Assemblies

    Parts lists Overview of assemblies Ordering parts The following information is required: ■ Serial no. (see type plate ■ Assembly (from the parts list) ■ Position number of the individual part within the assembly (from this parts list)
  • Page 100 Parts lists Overview of assemblies (cont.) Fig. 69 Type plate Heat cell assembly with MatriX cylinder burner Casing assembly Control unit assembly Hydraulic assembly with hydraulic block Miscellaneous assembly Loading cylinder assembly...
  • Page 101 Parts lists Overview of assemblies...

  • Page 102: Casing

    Parts lists Casing 0009 0011 0012 0003 0005 0005 0014 0014 0010 0001 0002 0014 0002 0004 0005 0007 0014 0008 0014 0013 0006 0014 Fig. 70...
  • Page 103 Parts lists Casing (cont.) Pos. Part 0001 Front panel, top 0002 Logo 0003 Toggle fastener (4 pce) 0004 Cover panel with profiled seal 0005 Profiled seal 0006 Adjustable foot 0007 Control unit support 0008 Side panel, right 0009 Side panel, left 0010 Loading cylinder mounting bracket 0011...

  • Page 104: Hydraulics

    Parts lists Hydraulics 0046 0030 0050 0047 0002 0012 0037 0029 0008 0002 0005 0003 0036 0008 0009 0009 0047 0033 0043 0043 0033 0046 0006 0047 0008 0005 0020 0047 0005 0005 0026 0046 0001 0035 0026 0012 0006 0047 0047 0015...
  • Page 105 Parts lists Hydraulics (cont.) Pos. Part 0001 Hydraulic block 0002 Set of plug-in connector retainers (2 pce) 0003 Diaphragm grommet (5 pce) 0004 Diaphragm grommet (5 pce) 0005 Clip Ø 8 (5 pce) 0006 Clip Ø 10 (5 pce) 0007 Clip Ø...
  • Page 106 Parts lists Hydraulics (cont.) Pos. Part 0044 Gasket A 16 x 24 x 2 (5 pce) 0045 Cap G 3/4 SW 30 0046 Gasket A 10 x 15 x 1.5 (5 pce) 0047 O-ring 17.86 x 2.62 (5 pce) 0048 O-ring 14.3 x 2.4 0049 Spring clip DN 25 (5 pce)
  • Page 107 Parts lists Hydraulics...

  • Page 108: Hydraulic Block

    Parts lists Hydraulic block 0008 0009 0012 0014 0016 0011 0004 0018 0002 0012 0017 0014 0002 0015 0006 0010 0014 0015 0013 0016 0014 0003 0005 0016 0015 0016 0001 0003 0015 0016 0016 0016 0016 0003 0005 0007 0005 Fig.
  • Page 109 Parts lists Hydraulic block (cont.) Pos. Part 0001 Return unit 0002 Profiled gasket 0003 Plug Ø 8/Ø 10 0004 Clip Ø 8 (5 pce) 0005 Clip Ø 10 (5 pce) 0006 Clip Ø 18 (5 pce) 0007 Hydraulic retaining bracket 0008 Plate heat exchanger insulation board 0009...

  • Page 110: Loading Cylinder

    Parts lists Loading cylinder 0009 0005 0007 0004 0008 0004 0007 0006 0003 0002 0001 0010 Fig. 73...
  • Page 111 Parts lists Loading cylinder (cont.) Pos. Part 0001 Loading cylinder 0002 Strain relief 0003 Magnesium anode 0004 Gasket 0005 Flange with gasket 0006 Cover 0007 Gasket 23 x 30 x 2 (5 pce) 0008 Sleeve 0009 Flange insulation 0010 Cylinder temperature sensor NTC 10k Ω...

  • Page 112: Heat Cell

    Parts lists Heat cell 0021 0009 0010 0015 0020 0017 0021 0020 0025 0023 0005 0020 0025 0017 0011 0005 0024 0025 0025 0003 0017 0001 0025 0017 0024 0007 0015 0016 0022 0012 0022 0019 0008 0015 0017 0017 0017 0006 0002...
  • Page 113 Parts lists Heat cell (cont.) Pos. Part 0001 MatriX cylinder burner 0002 Spring clip, condensate drain 0003 Profile hose, heating return 0004 Condensate collector 0005 Flue gasket 0006 Siphon 0007 Condensate hose 0008 Pipe clip Ø 18 / 1.5 0009 Flue gas temperature sensor 0010 Boiler flue connection...

  • Page 114: Matrix Cylinder Burner

    Parts lists MatriX cylinder burner 0002 0001 0003 0018 0004 0010 0004 0018 0001 0004 0007 0012 0015 0013 0020 0005 0013 0018 0013 0012 0006 0014 0012 0011 0007 0019 0008 0017 0007 0019 0009 0016 Fig. 75...
  • Page 115 Parts lists MatriX cylinder burner (cont.) Pos. Part 0001 Burner gasket (wearing part) 0002 Thermal insulation ring 0003 Cylinder, burner gauze assembly 0004 Gasket, burner gauze assembly 0005 Ignition electrode (wearing part) 0006 Ionisation electrode (wearing part) 0007 Gasket, burner door flange (wearing part) 0008 Radial fan 0009...

  • Page 116: Control Unit

    Parts lists Control unit 0013 0002 0009 0008 0005 0009 0015 0020 0001 0003 0015 0021 0014 0005 0006 0004 0017 0015 0007 0018 0010 0011 0012 0019 Fig. 76...
  • Page 117 Parts lists Control unit (cont.) Pos. Part 0001 Control unit 0002 Control unit casing back panel 0003 Coding card 0004 Fuse 6.3 A (slow) (10 pce) 0005 Fuse holder 0006 Programming unit for constant temperature mode 0007 Programming unit for weather-compensated mode 0008 LON communication module 0009...

  • Page 118: Miscellaneous

    Parts lists Miscellaneous 0002 0003 0004 0001 0005 0006 Fig. 77...
  • Page 119 Parts lists Miscellaneous (cont.) Pos. Part 0001 Special grease 0002 Touch-up spray paint, white 0003 Touch-up paint stick, white 0004 Installation and service instructions 0005 Operating instructions for constant temperature mode 0006 Operating instructions for weather-compensated mode...

  • Page 120: Function Description Constant Temperature Control Unit

    Function description Constant temperature control unit °C Fig. 78 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.

  • Page 121: Heating Mode

    Function description Weather-compensated control unit (cont.) Heating mode The control unit determines a set boiler water tempera- The electronic temperature limiter inside the burner ture subject to outside temperature or room tempera- control unit limits the boiler water temperature. ture (if a room temperature-dependent remote control is connected) and to the slope level of the heating curve.

  • Page 122: Internal Extensions

    Function description Internal extensions Internal extension H1 Fig. 80 The internal extension is integrated into the control unit ■ Heating circuit pump for heating circuit without mixer enclosure. The following alternative functions can be (code "53:2") connected to relay output .

  • Page 123: Internal Extension H2

    Function description Internal extensions (cont.) Internal extension H2 Fig. 81 The internal extension is integrated into the control unit ■ Heating circuit pump for heating circuit without mixer enclosure. The following alternative functions can be (code "53:2") connected to relay output .

  • Page 124: External Extensions (Accessories)

    Function description External extensions (accessories) AM1 extension Fig. 82 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: ■...

  • Page 125: Ea1 Extension

    Function description External extensions (accessories) (cont.) Function assignment Function Code ("General" group) Output A1 Output A2 DHW circulation pump 33:0 34:0 (delivered condition) Heating circuit pump 33:1 (delivered condition) 34:1 sÖ Circulation pump for cylinder heating 33:2 34:2 EA1 extension Fig.
  • Page 126 Function description External extensions (accessories) (cont.) Central fault message/feed pump/DHW circula- tion pump (potential-free) Connect DHW circulation pumps with stand- ∼ alone functions directly to the 230 V supply. KM BUS Digital data inputs DE1 to DE3 Effect of the external demand function on the pumps The following functions can be connected alternatively: ■...

  • Page 127: Control Functions

    Function description Control functions External operating program changeover The "External operating program changeover" function The function is selected via the following coding is implemented via the EA1 extension. There are 3 addresses in the "General" group: inputs available at the EA1 extension (DE1 to DE3). Heating program changeover Code Input DE1...

  • Page 128: External Demand

    Function description Control functions (cont.) External blocking and fault message input Code Input DE1 3A:4 Input DE2 3b:4 Input DE3 3C:4 The effect on the internal circulation pump is selected The effect on the relevant heating circuit pump is in coding address "3E" in the "General" group. selected in coding address "d6"...
  • Page 129 Function description Control functions (cont.) Note Various temperature profiles can be set via coding Temperature profile 6 ends after 21 days. address "F1" in the "Heating circuit" group. The function continues after power failure or after the Observe EN 1264. The report to be provided by the control unit has been switched off.

  • Page 130: Raising The Reduced Room Temperature

    Function description Control functions (cont.) Temperature profile 5: Code "F1:5" Days Fig. 88 Temperature profile 6: Code "F1:6" Days Fig. 89 Ends after 21 days Temperature profile 7: Code "F1:15" Days Fig. 90 Raising the reduced room temperature During operation at reduced room temperature, the The outside temperature limits for the start and end of reduced set room temperature can be automatically temperature raising can be set in coding addresses...

  • Page 131: Reducing The Heat-Up Time

    Function description Control functions (cont.) Example using the settings in the delivered condition Outside temperature in °C Fig. 91 Heating curve for operation with standard room temperature Heating curve for operation with reduced room temperature Reducing the heat-up time During the transition from operation with reduced room The value and duration for the additional increase of temperature to operation with standard room tempera- the set boiler water or flow temperature is selected in...

  • Page 132: Allocating Heating Circuits To The Remote Control

    Function description Control functions (cont.) Example using the settings in the delivered condition Time Fig. 92 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": 50 °C + 20 % = 60 °C Duration of operation with raised set boiler water...

  • Page 133: Electronic Combustion Control Unit

    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 .

  • Page 134: Connection And Wiring Dia-Internal Connection Diagram

    Connection and wiring diagram Internal connection diagram Fig. 93 Main PCB Stepper motor for diverter valve dÖ X... Electrical interfaces Temperature limiter § Boiler water temperature sensor Ignition unit Outlet temperature sensor Fan motor a-Ö Ionisation electrode A Fan motor control a-Ö...

  • Page 135: Gram External Connection Diagram

    Connection and wiring diagram External connection diagram Fig. 94 Main PCB Flow temperature sensor, low loss header Power supply unit Cylinder temperature sensor (plug on cable har- Optolink ness) Burner control unit Internal circulation pump sÖ Programming unit Cylinder loading pump Coding card DHW circulation pump Connection adaptor...

  • Page 136: Commissioning/Service

    Commissioning/service reports Commissioning/service reports Settings and test values Set value Commissioning Maintenance/ service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pressure) for natural gas E mbar 17-25 1.70-2.5 for natural gas LL mbar 17-25 1.70-2.5 for LPG mbar 42.5-57.5...

  • Page 137: Specification

    Specification Specification Rated heating output range at T 50/30 °C 3.2 (4.8) - 13 3.2 (4.8) - 19 5.2 (8.8) - 26 5.2 (8.8) - 35 at T 80/60 °C 2.9 (4.3) - 11.8 2.9 (4.3) - 17.2 4.7 (8.0) - 23.7 4.7 (8.0) - 31.7...

  • Page 138: Disposal Final Decommissioning And Disposal

    All components must be disposed of correctly. DE: We recommend using the disposal system organ- ised by Viessmann. Operating fluids (e.g. heat transfer medium) can be disposed of at municipal collection points. Viessmann sales offices can provide further information.
  • Page 139 Certificates Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole responsible body that the product Vitodens 222-F, type B2TA complies with the following standards: DIN 4753 EN 55 014 EN 483 EN 60 335-1...
  • Page 140 Keyword index Keyword index Faults................. 81 Acknowledging a fault display........81 Fill function............... 128 Actuator test............... 79 Fill water..............26 Anode, checking............42 Flow temperature sensor........... 92 Anode, replacing............42 Flue gas temperature sensor........94 Assembly..............99 Function descriptions..........120 Function testing............79 Fuse/MCB..............96 Boiler, draining on the DHW side.......
  • Page 141 Keyword index Keyword index (cont.) Remote control............132 Supply pressure............32 Removing a fault display..........81 System, filling............. 27 Report..............136 System pressure............27 Rotational direction, mixer motor System schemes..........46, 55 – Changing..............97 System version............46 – Checking..............97 Temperature limiter............ 95 Safety chain ..............
  • Page 144 Applicability Serial No.: 7519081 7513044 7513045 7513046 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040...

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