Viessmann VITODENS 222-F Installation And Service Instructions Manual
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Viessmann VITODENS 222-F Installation And Service Instructions Manual

Compact gas condensing boiler 4.8 to 35 kw natural gas and lpg version gc no 47-819-15 (19kw); 47-819-16 (26kw); 47-819-17 (35kw)
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VIESMANN
Installation and service
instructions
for contractors
Vitodens 222-F
Type FS2A
Compact gas condensing boiler
4.8 to 35 kW natural gas and LPG version
GC No 47-819-15 (19kW); 47-819-16 (26kW); 47-819-17 (35kW)
For applicability, see the last page
VITODENS 222-F
Please keep safe.
5692 816 GB
4/2009

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Summary of Contents for Viessmann VITODENS 222-F

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 222-F Type FS2A Compact gas condensing boiler 4.8 to 35 kW natural gas and LPG version GC No 47-819-15 (19kW); 47-819-16 (26kW); 47-819-17 (35kW) For applicability, see the last page VITODENS 222-F Please keep safe.

  • Page 2: Safety Instructions

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

  • Page 4: Table Of Contents

    Index Index Installation instructions Preparing for installation Product information....................Preparing for installation..................Installation sequence Installing the boiler....................11 Opening the control unit casing................14 Electrical connections................... 15 Closing the control unit casing................19 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... 21 Further details regarding the individual steps............
  • Page 5 Index Index (cont.) Internal extensions....................116 External extensions (accessories)................ 118 Control functions....................120 Remote control DIP switches................126 Electronic combustion controller................127 Designs Internal connection diagram................. 129 External connection diagram................130 Parts lists......................132 Commissioning/service reports................ 140 Specification....................... 141 Certificates Declaration of conformity..................

  • Page 6: Preparing For Installation

    Set up for operation with natural gas H. For conversion to LPG P (without conversion kit), see page 29. The Vitodens 222-F should generally only be delivered to those countries specified on the type plate. For deliveries to alternative countries, an approved contractor, on his own initiative, must arrange individual approval in accordance with the law of the land.
  • Page 7 Preparing for installation Preparing for installation (cont.) A Heating flow R ¾" B DHW R ½" C Gas connection R ¾" D Cold water R ½" E Heating return R ¾" F DHW circulation R ½" (separate accessory) G Condensate drain to the back into the wall H Side condensate drain K Cable entry...
  • Page 8 Preparing for installation Preparing for installation (cont.) Rated output range 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kW c (mm) 1172 d (mm) 1027 1027 1227 e (mm) 1082 1082 1302 f (mm) 1137 1137 1337 g (mm) 1191 1191...
  • Page 9 Preparing for installation Preparing for installation (cont.) 2. Prepare the DHW connections. Install the safety assembly (acces- sory or on-site provision) in accord- ance with DIN 1988 in the cold water line (see page 10). Recommendation: Install the safety valve above the DHW cylinder to protect it against contamination, scaling and high tem- peratures.
  • Page 10 Preparing for installation Preparing for installation (cont.) Safety assembly to DIN 1988 A Safety assembly (accessory to con- G Non-return valve nection sets for unfinished walls) H Drain B Safety valve K Cold water C Visible blow-off line outlet L Drinking water filter D Shut-off valve M Pressure reducer E Flow regulating valve (installation...

  • Page 11: Installation Sequence

    Installation sequence Installing the boiler Assembling the boiler...
  • Page 12 Installation sequence Installing the boiler (cont.) Connections on the heating water and the DHW side Shown with connection sets for finished walls (accessories) A Heating flow R ¾" D Cold water R ½" B DHW R ½" E Heating return R ¾" C DHW circulation R ½"...

  • Page 13: Gas Connection

    Installation sequence Installing the boiler (cont.) DHW circulation connection DHW circulation connection with DHW circulation pump connection set (accessory) Separate installation instructions Gas connection Notes regarding operation with LPG. 2. Carry out a leak/tightness test. We recommend the installation of an external safety solenoid valve when installing the boiler in rooms below ground level.

  • Page 14: Flue Gas Connection

    Installation sequence Installing the boiler (cont.) Please note 3. Vent the gas line. Excessive test pressure may damage the boiler and the gas For conversion to a different gas type valve. see page 29 Max. test pressure 150 mbar. Where higher pressure is required for tightness tests, separate the boiler and the gas valves from the gas sup-...

  • Page 15: Electrical Connections

    Installation sequence Opening the control unit casing (cont.) Electrical connections Information regarding the connection of accessories For the connection, observe the separate installation instructions provided with the accessory components. Please note Electronic modules can be damaged by electrostatic discharges. Before beginning work, touch earthed objects, such as heating or water pipes, to discharge static loads.
  • Page 16 Installation sequence Electrical connections (cont.) 230V~ 230V~ 7654 A Radio clock connection B Vitotrol 100 UTD (only for constant temperature control units or third party 230V programmers) C Vitotrol 100 UTA (only for constant temperature control units) Vitotrol 100 UTD-RF wireless receiver (only for constant tempera- ture control units or third party 230V programmers)
  • Page 17 Installation sequence Electrical connections (cont.) Danger Low voltage plug X3 Incorrect core termination ! Outside temperature sensor (only can cause severe injuries for weather-compensated control) and damage to the equip- ment. Installation: Take care not to inter- ■ North or north-western wall, 2 to change cores "L1"...

  • Page 18: Routing The Connecting Cables

    Installation sequence Electrical connections (cont.) Routing the connecting cables Please note Connecting cables will be damaged if they touch hot parts. When routing and securing power cables on site, ensure that the maximum permissible temperatures for these cables are not exceeded. A Low voltage connections E Communication module (accesso- ries)

  • Page 19: Closing The Control Unit Casing

    Installation sequence Closing the control unit casing Close control unit casing and insert pro- Note gramming unit, packed separately. The programming unit can also be used in a wall mounting base (accessory) near the boiler.
  • Page 20 Installation sequence Closing the control unit casing (cont.) Wall mounting base installation instructions...

  • Page 21: 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. Removing the front panel..........23 • 2. Filling the heating system..........23 •...
  • Page 22 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • 21. Checking the condensate drain and cleaning the siphon................40 • 22. Checking the neutralising system (if installed) • 23. Checking the anode connection........40 •...

  • Page 23: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panel See page 11, steps 1 to 5. Filling the heating system Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage. ■...
  • Page 24 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note 5. Close boiler fill & drain valve A. If the control unit has not been switched ON prior to filling the sys- Activating filling function with tem, then the servomotor of the weather-compensated control unit: diverter valve will still be in its central position, and the system will be com-...

  • Page 25: Selecting The Language (If Required) - Only For Weather-Compensated Control

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the language (if required) – only for weather-compen- sated control Note 3. "Language DE" At the commissioning stage, the display is in German (default setting) Sprache Deutsch ç Cesky Extended menu: Dansk English...

  • Page 26: 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. Remove cover panel A. 3. Connect the drain hose on valve B with a drain. 4.

  • Page 27: Filling Siphon With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Activating venting function with con- 2. Select "5" and confirm with OK. stant temperature control unit: When the venting function is activa- ted, "EL on" is shown on the dis- 1.

  • Page 28: Designating Heating Circuits - Only For Weather

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7. Secure control unit back in operating position. Designating heating circuits - only for weather-compensated control In the delivered condition, the heating Enter names for heating circuits: circuits are designated "Heating circuit 1"...

  • Page 29: Gas Type Conversion (Only For Operation With Lpg)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Gas type conversion (only for operation with LPG) 1. Set adjusting screw A at the gas train to "2". 2. Switch ON/OFF switch 3. Select the gas type in coding address "82": ■...
  • Page 30 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ignition Fault F4 Check the ignition module (control voltage 230 V across plugs "X2.1" and "X2.2") Gas train opens Fault F4 Check the gas train (control voltage 230 V); check the gas supply pres- sure Ionisation current...

  • Page 31: 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 90.
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure. Set value: ■ Natural gas: 20mbar ■ LPG: 37 mbar Note Use suitable test equipment with a resolution of at least 0.1 mbar to measure the supply pressure.

  • Page 33: Setting The Maximum Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Supply (flow) pres- Supply (flow) Measures sure for natural pressure for LPG below 15 mbar below 25 mbar Do not start the boiler. Notify your mains gas or LPG supplier. 15 to 25 mbar 25 to 45 mbar Start the boiler.

  • Page 34: Checking The Balanced Flue System Tightness (Annular Gap Check)

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

  • Page 35: Burner Removal

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner removal 1. Switch ON/OFF switch 2. Close the gas shut-off valve and safe- at the con- guard against reopening. trol unit and the main power supply OFF.

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

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Pull electrical cables from fan motor 5. Release four nuts G and remove the A, gas valve B, ionisation elec- burner. trode C, ignition unit D and earth tab E. Please note Prevent damage to the wire gauze.
  • Page 37 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove electrodes B. 4. Insert and secure a new burner gauze assembly E with a new gas- 2. Undo three retaining clips C at ther- ket F. mal insulation ring D and remove Torque: 3.5 Nm.

  • Page 38: 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 39 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Thoroughly flush the heat exchanger A with water. 4. Install the burner. Fit the screw with a serrated washer and the remaining screws, then tighten diagonally with 4 Nm torque. 5.

  • Page 40: Checking The Condensate Drain And Cleaning The Siphon

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

  • Page 41: Testing The Anode Earth Current With An Anode Tester

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) A Magnesium anode B Earth cable Testing the anode earth current with an anode tester Note We recommend that the magnesium anode function is checked annually. This func- tion test can be carried out without interrupting operation, by measuring the earth current with an anode tester.
  • Page 42 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove cover A. 3. Connect the tester (up to 5 mA) in series between tab C and earth 2. Pull earth lead B from tab C. cable B. ■ The anode is OK if the indicated current is >...

  • Page 43: Draining The Boiler On The Dhw Side

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Draining the boiler on the DHW side 1. Connect hose to drain valve and route into a suitable container or drain outlet. Note Ensure adequate ventilation in the DHW pipework. 2.

  • Page 44: Cleaning The Primary Cylinder

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary cylinder Note EN 806 specifies a visual inspection and (if required) cleaning every two years after the cylinder has been taken into use and thereafter according to requirements. 1.

  • Page 45: Checking And Replacing The Magnesium Anode (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Use a chemical cleaning agent to 6. Thoroughly flush the primary cylinder remove hard deposits that cannot be after cleaning. removed by a high pressure cleaner. Please note Never use hydrochloric acid based cleaning agents.

  • Page 46: Checking The Diaphragm Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Fit flange lid B and tighten eight 6. Fit cover F. screws D with up to 25 Nm. 7. Fill the primary cylinder with drinking 4. Push earth cable C onto tab. water.

  • Page 47: Checking The Combustion Quality

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the combustion quality 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 48: Matching The Control Unit To The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8. After testing, press OK. Selecting the upper/lower output for constant temperature control units: 9. Enter actual values into the service report. 1. Press OK and simultaneously for approx. 4 s. Selecting the upper/lower output for "...
  • Page 49 Further details regarding the individual steps (cont.) System version 1 One heating circuit without mixer A1 1 Vitodens 222-F 3 Vitotrol 100 (only for constant tem- perature control units) 2 Outside temperature sensor (only 4 Heating circuit without mixer A1...
  • Page 50 Further details regarding the individual steps (cont.) System version 2 One heating circuit with mixer M2 and a low loss header 1 Vitodens 222-F 6 Heating circuit pump M2 2 Outside temperature sensor 7 Extension kit for one heating circuit...
  • Page 51 Further details regarding the individual steps (cont.) System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 1 Vitodens 222-F 6 Flow temperature sensor M2 2 Outside temperature sensor 7 Heating circuit pump M2...
  • Page 52 (cont.) System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation 1 Vitodens 222-F 7 Heating circuit pump M2 2 Outside temperature sensor 8 Extension kit for one heating circuit 3 Heating circuit without mixer A1...
  • Page 53 One heating circuit with mixer M1 (with Vitotronic 200-H), one heating circuit with mixer M2 (with extension kit) and low loss header (with/without DHW heat- ing) 1 Vitodens 222-F 9 Flow temperature sensor M2 2 Outside temperature sensor qP Heating circuit pump M2...

  • Page 54: Adjusting The Heating Curves (Only For Weather-Compensated Control)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the heating curves (only for weather-compensated control) The heating curves illustrate the relation- The room temperature, again, depends ship between the outside temperature on the boiler water or the flow tempera- and the boiler water or flow tempera- ture.
  • Page 55 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 the standard A Changing the slope room temperature from 20 to 26°C B Changing the level (vertical parallel offset of the heating curve) A Boiler water temperature or flow...

  • Page 56: Connecting The Control Unit To The Lon System (Only For Weather-Compensated Control)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Reduced room temperature C Set room temperature in °C D Heating circuit pump "OFF" E Heating circuit pump "ON" Adjustment of the reduced room tem- perature: Operating instructions Example 2: Adjustment of the reduced room temperature from 5 °C to 14 °C A Boiler water temperature or flow temperature in °C...
  • Page 57 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom Subscriber no. 1 Subscriber no. 10 Subscriber no. 11 Subscriber no. Code "77:1" Code "77:10" Set code "77:11" Control unit is fault Control unit is not Control unit is not Device is fault...

  • Page 58: Scanning And Resetting The "Service" Display

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Select subscriber (e.g. subscriber Note 10). If the subscriber check is carried out The subscriber check for the selected by another control unit, the sub- subscriber is introduced. scriber number and "Wink" are ■...
  • Page 59 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Constant temperature control unit Reset code 24:1 to 24:0. Note The selected service parameters for hours run and time interval restart at 0.

  • Page 60: Fitting The Front Panels

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the front panels...

  • Page 61: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instructing the system user The system installer must hand the oper- ating instructions to the system user and instruct him/her in the operation of the system.

  • Page 62: Calling Up Code 1

    Code 1 Calling up code 1 Note 6. If you want to reset all codes to the ■ On weather-compensated control delivered condition: units, codes are displayed as plain Select "Standard setting" in "Cod- text. ing level 1". ■ Codes that have no function due to the heating system equipment level or the Constant temperature control unit: setting of other codes are not dis-...

  • Page 63: General - Group 1

    Code 1 General – Group 1 Coding Coding in the delivered condition Possible change System design 00:2 System version 1: 00:4 System version 2, 5: One heating circuit with- One heating circuit with out mixer A1, with DHW mixer M2, with DHW heat- heating 00:6 System version 3, 4:...

  • Page 64: Boiler - Group 2

    Code 1 General – Group 1 (cont.) Coding in the delivered condition Possible change Lock out controls 8F:0 All control elements 8F:1 All control elements locked active Only setting test mode pos- sible 8F:2 Standard menu and test mode enabled Extended menu locked out Ext.
  • Page 65 Code 1 Boiler – Group 2 (cont.) Coding in the delivered condition Possible change Burner service in 100 hours 21:0 No maintenance interval 21:1 The number of hours run (hours run) selected before the burner should 21:100 be serviced is adjustable from 100 to 10 000 h One adjusting step ≙...
  • Page 66 Code 1 Boiler – Group 2 (cont.) Value Internal circu- Heating circuit Heating circuit Circulation address lation pump pump pump pump for cylin- 32: ... Heating circuit Heating circuit der heating without mixer with mixer Control funct. Control funct. Control funct. Control funct.

  • Page 67: Dhw - Group 3

    Code 1 Boiler – Group 2 (cont.) Value Internal circu- Heating circuit Heating circuit Circulation address lation pump pump pump pump for cylin- 34: ... Heating circuit Heating circuit der heating without mixer with mixer Control funct. Control funct. Control funct. Control funct.

  • Page 68: Heating Circuit 1/Heating Circuit 2 - Group 5

    Code 1 Heating circuit 1/Heating circuit 2 – Group 5 Coding Coding in the delivered condition Possible change Summer eco function outside temperature A5:5 With heating circuit pump A5:0 Without heating circuit logic function (economy pump logic function circuit): Heating circuit A5:1 With heating circuit pump pump "Off"...
  • Page 69 Code 1 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change Summer eco function absolute A6:36 Extended economy func- A6:5 Extended economy control tion disabled (only for enabled, i.e. the burner and weather-compensated A6:35 heating circuit pump will be control)
  • Page 70 Code 1 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change Weather-compensated/ room temperature hook-up b0:0 With remote control: b0:1 Heating mode: weather- Heating mode/reduced compensated mode: weather-compen- Reduc. mode: with room sated (only for weather- temperature hook-up compensated control;...
  • Page 71 Code 1 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change Flow temperature maximum limit C6:74 Electronic maximum flow C6:10 Minimum limit adjustable temperature limited to from 10 to 127 °C (limited 74 °C (only for weather- C6:127 by boiler-specific parame- compensated control)
  • Page 72 Code 1 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change Pump control in "standby mode" F7:25 In "Standby mode", the F7:0 In "Standby mode", the internal circulation pump internal circulation pump is is permanently ON (only permanently OFF for constant temperature...
  • Page 73 Code 1 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change Duration set flow flow temperature increase Fb:30 Duration for raising the Fb:0 Duration adjustable from 0 set boiler water tempera- to 300 min; 1 step ≙...

  • Page 74: Calling Up Coding Level 2

    Code 2 Calling up coding level 2 Note 7. If you want to reset all codes to the ■ In coding level 2, all codes are acces- delivered condition: sible, including the codes from coding Select "Standard setting" in "Cod- level 1.

  • Page 75: General - Group 1

    Code 2 General – Group 1 Coding Coding in the delivered condition Possible change 11:≠9 No access to the coding 11:9 Access open to the coding addresses for the param- addresses for the parame- eters of the combustion ters of the combustion con- controller troller 25:0...
  • Page 76 Vitotronic 200-H (only for weather-com- pensated control) 98:1 Viessmann system num- 98:1 System number adjustable ber (in conjunction with from 1 to 5 monitoring several sys- 98:5 tems via Vitocom 300)

  • Page 77: Boiler - Group 2

    Code 2 General – Group 1 (cont.) Coding in the delivered condition Possible change 9C:20 Monitoring LON subscrib- 9C:0 No monitoring ers. 9C:5 The time is adjustable from If a subscriber fails to 5 to 60 min respond, the values 9C:60 specified inside the con- trol unit will be used after...

  • Page 78: Dhw - Group 3

    31:0 Set speed adjustable from circulation pump when 0 to 100 % (not available operated as boiler circuit 31:100 for Vitodens 222-F) pump %, specified by the boiler coding card 38:0 Status burner control unit: Status burner control unit: 38:≠0...
  • Page 79 65:... Information regarding the 65:0 Without diverter valve type of diverter valve; do 65:1 Diverter valve by not adjust. Viessmann 65:2 Diverter valve by Wilo 65:3 Diverter valve by Grundfos 6C:100 Set speed; internal pri- mary pump for DHW heating 100 %.

  • Page 80: Heating Circuit 1/Heating Circuit 2 - Group 5

    Code 2 Heating circuit 1/Heating circuit 2 – Group 5 Coding Coding in the delivered condition Possible change A0:0 Without remote control A0:1 With Vitotrol 200 (auto- (only for weather-com- matic recognition) pensated control) A0:2 With Vitotrol 300 (auto- matic recognition) A3:2 Outside temperature A3:-9...
  • Page 81 Code 2 Heating circuit 1/Heating circuit 2 – Group 5 (cont.) Coding in the delivered condition Possible change A4:0 With frost protection (only A4:1 No frost protection; this set- for weather-compensa- ting is only possible if code ted control) "A3:-9" has been selected. Note "Caution"...
  • Page 82 E9:100 speed during operation mum speed during oper- with reduced room temper- ation with reduced room ature (not adjustable on temperature (only for Vitodens 222-F) weather-compensated control) F5:12 Run-on time of the inter- F5:0 No run-on time for the inter-...

  • Page 83: Diagnosis And Service Scans

    Diagnosis and service scans Diagnosis ■ Weather-compensated control unit: Operating data can be scanned in the following areas: – General – Heating circuit 1 – Heating circuit 2 (if heating circuit with mixer installed) – DHW – Brief scan (for further information, see page 84) –...

  • Page 84: Brief Scan

    Diagnosis and service scans Diagnosis (cont.) Brief scan In the brief scan, you can scan temperatures, software versions and connected com- ponents, for example. Weather-compensated control unit 1. Press OK and simultaneously for approx. 4 s. 2. "Diagnosis" 3. "Brief scan". 4.
  • Page 85 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Software Software Software Software version version version version Program- Mixer External ming unit exten- module extension sion 0: no exter- 0: no nal exten- mixer sion exten- sion Software version Type Appliance type Burner control unit...
  • Page 86 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Internal circulation Heating circuit pump to connection exten- pump sion Variable Software Variable Software speed version speed version pump Variable pump Variable 0 w/o speed 0 w/o speed 1 Wilo pump 1 Wilo pump...

  • Page 87: Checking Outputs (Relay Test)

    Diagnosis and service scans Diagnosis (cont.) Brief scan Display 0: no exter- 0: no exter- External 0 to 10 V hook-up nal blocking Display in °C demand 1: external 0: no external hook-up 1: external blocking demand Set boiler water temperature Highest demand temperature Burner control unit type Appliance type...
  • Page 88 Diagnosis and service scans Checking outputs (relay test) (cont.) The following relay outputs can be controlled subject to system design: Display Explanation Base load Burner modulation base load Full load Burner modulation full load Internal pump ON Int. output 20 Htg.
  • Page 89 Diagnosis and service scans Checking outputs (relay test) (cont.) Display Explanation Heating circuit pump A1 External extension H1 Circulation pump for cylinder heating External extension H1 DHW circulation pump External extension H1 Central fault message External extension H1...

  • Page 90: Troubleshooting

    Troubleshooting Fault display Weather-compensated control unit In case of a fault, " " flashes on the dis- Calling up acknowledged faults play and "Fault" is shown. The fault code is displayed with OK. For Select "Fault" in the standard menu. an explanation of the fault code, see the The current faults will be displayed in a following pages.

  • Page 91: Fault Codes

    Troubleshooting Fault display (cont.) Calling up acknowledged faults Faults are sorted by date. Press OK for approx. 4 s. 1. Press OK and simultaneously for The 10 most recent faults (including approx. 4 s. those remedied) are saved and can be called up.
  • Page 92 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Regulates with- Lead break, Check the low loss out flow tem- system flow header sensor (see perature sen- temperature page 104) sor (low loss sensor header) Burner blocked Short circuit,...
  • Page 93 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Faulty pro- Replace program- as per deliv- gramming ming unit ered condition unit Burner blocked Air lock in the Vent the system if The venting internal circu- the fault message...
  • Page 94 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Boiler coding Plug in boiler cod- card fault ing card or replace, if faulty Burner blocked Lead break, Checking the flue flue gas tem- gas temperature perature sen-...
  • Page 95 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Communica- Check Open tion error, Therm extension Open Therm extension Control mode, Communica- Check the setting max. pump tion error, var- of coding address speed iable speed...
  • Page 96 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Control mode Short circuit, Check room tem- without room room temper- perature sensor, influence ature sensor, heating circuit 1 heating circuit 1 (without mixer) Control mode Short circuit,...
  • Page 97 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 98 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Internal fault Replace the control unit. Burner in a fault Flue gas tem- Check the heating state perature lim- system fill level. iter has Vent the system.
  • Page 99 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner in a fault The gas valve Check the gas state closes too train. Check both late control paths. Press reset button Burner in a fault Fan speed Check the fan,...

  • Page 100: Repairs

    Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Measures code on comp. acteristics the dis- play Burner blocked Boiler coding Press reset button or in a fault card or main R. Replace boiler state PCB faulty coding card or con- trol unit if the fault persists.
  • Page 101 Troubleshooting Repairs (cont.)
  • Page 102 Troubleshooting Repairs (cont.) Draining the boiler on the heating water side 1. Close the shut-off valves on the heat- 3. Open drain valve A and drain the ing water side. boiler as far as required. 2. Route hose at drain valve A into a suitable container or drain outlet.
  • Page 103 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 on ted plug and compare it with the the sensor itself.
  • Page 104 Troubleshooting Repairs (cont.) Checking the boiler temperature sensor, cylinder temperature sensor or flow temperature sensor for the low loss header...
  • Page 105 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 har- ness at the control unit and check the resistance.
  • Page 106 Troubleshooting Repairs (cont.) Checking the outlet temperature sensor 1. Pull the leads from outlet temperature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in case of severe deviation. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding).
  • Page 107 Troubleshooting Repairs (cont.) Check the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded. Reset the interlock after the flue system has cooled down by pressing reset button R. 1.
  • Page 108 Troubleshooting Repairs (cont.) Checking the plate-type heat exchanger Note Drain the boiler on its heating water and DHW side. During removal, small amounts of water may trickle out and escape from the removed plate-type heat exchanger. 1. Shut off and drain the boiler on its 5.
  • Page 109 Troubleshooting Repairs (cont.) 1. Pull the leads from temperature lim- iter A. 2. Check the continuity of the tempera- ture limiter with a multimeter. 3. Remove the faulty temperature lim- iter. 4. Coat the replacement temperature limiter with heat conducting paste and install it.
  • Page 110 Troubleshooting Repairs (cont.) Checking the fuse 3. Remove cover A. 1. Switch OFF the power. 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 Note The DIP switch on the PCB of the exten- sion set must be set to "2".
  • Page 111 Troubleshooting Repairs (cont.) Note the rotational direction of the mixer For the following mixer arrangement motor during its self-test. (heating return from the right), change Then set the mixer manually to "Open" the rotational direction. again. Note The flow temperature sensor must now capture a higher temperature.
  • Page 112 Troubleshooting Repairs (cont.) BK BU 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 57).

  • Page 113: Function Description

    Function description Constant temperature control unit °C Heating operation The selected set boiler water tempera- The electronic temperature limiter inside ture will be maintained when a demand the burner control unit limits the boiler is being raised by the room thermostat water temperature to 82 °C.

  • Page 114: Weather-Compensated Control Unit

    Function description Constant temperature control unit (cont.) Boosting when DHW is drawn off When DHW is drawn off, cold water The DHW is controlled to the specified enters at the bottom of the primary cyl- temperature via the cylinder temperature inder.
  • Page 115 Function description Weather-compensated control unit (cont.) 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 temperature or room temperature (if a water temperature to 82 °C. room temperature-dependent remote control is connected) and to the slope/ level of the heating curve.

  • Page 116: Internal Extension H1

    Function description Weather-compensated control unit (cont.) The DHW is controlled to the specified The cylinder primary pump and the temperature via the cylinder temperature three-way diverter valve remain ON for a sensor. further 30 s. The primary cylinder continues to be heated up after the draw off process has terminated, until the set DHW tempera- ture has been reached at the cylinder...
  • Page 117 Function description Internal extensions (cont.) Internal extension H2 (accessory) The internal extension H2 is integrated An external extractor interlock can be into the control unit casing instead of the connected to aBJ. internal extension H1. The cylinder pri- mary pump is connected to relay output...

  • Page 118: External Extensions (Accessories)

    Function description External extensions (accessories) 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 119 Function description External extensions (accessories) (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 120: Control Functions

    Function description Control functions External heating program changeover The "External heating program change- over" function is connected via external extension input "aVD". You can select which heating circuits the heating pro- gram changeover affects in coding address "91": Heating program changeover Coding No changeover 91:0...
  • Page 121 Function description Control functions (cont.) External blocking The "External blocking" function is con- In coding address "32" you can select the nected via external extension input influence the "Ext. blocking" signal "aVD". should have on the connected circulation pumps. External demand The "External demand"...
  • Page 122 Function description Control functions (cont.) Screed drying function The screed function enables screeds to ■ Heat-up data with respective flow tem- be dried. For this, always observe the peratures details specified by the screed manufac- ■ Max. flow temperature achieved turer.
  • Page 123 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 124 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 125 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 126: 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 127: Electronic Combustion Controller

    Function description Remote control DIP switches (cont.) Remote control DIP switch setting The remote control affects the heating cir- cuit without mixer A1 1 2 3 4 The remote control affects the heating cir- cuit with mixer M2 1 2 3 4 When connecting a separate room tem- perature sensor, set DIP switch "3"...
  • Page 128 Function description Electronic combustion controller (cont.) Air factor λ – CO content Air factor content content (%) content (%) content λ for natural gas for natural gas (%) for LPG P 1.24 10.9 1.27 10.6 1.30 10.3 1.34 10.0 1.37 1.40 1.44 To achieve an optimum combustion con-...

  • Page 129: Designs

    Designs Internal connection diagram Main PCB dÖ Stepper motor for diverter valve X... Electrical interfaces Thermocouple § Boiler water temperature sensor Ignition unit Outlet temperature sensor a-Ö Fan motor Ionisation electrode a-ÖA Fan motor control Flue gas temperature sensor a:Ö Modulation coil...

  • Page 130: External Connection Diagram

    Designs External connection diagram Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
  • Page 131 Designs External connection diagram (cont.) Connection adaptor sÖ Internal circulation pump LON communication module Gas solenoid valve Internal extension H1 fÖ Power supply ON/OFF switch Power supply accessories and Reset button Vitotrol 100 X... Electrical interfaces a-Ö Fan motor Outside temperature sensor a-ÖA Fan motor control Flow temperature sensor, low Gas pressure limiter...

  • Page 132: Parts Lists

    Parts lists Parts lists Spare parts information 037 DHW connection pipe Quote the part and serial no. (see type 038 Heating water flow connection pipe plate) and the item number of the 039 Cold water connection required part (as per this parts list). 040 Return connection pipe Obtain standard parts from your local 050 Flow unit...
  • Page 133 Parts lists Parts lists (cont.) 101 Worm-drive hose clip 303 Fuse 6.3 A slow (10 pce.) 7 34.0 - 37.4 304 Fuse holder 102 Locking clip, condensate drain 305 Programming unit for weather- 103 Drain plug (set) compensated mode 104 Cap 306 Programming unit for constant tem- 105 Hose 7 10 x 1.5 x 750 perature mode...
  • Page 134 Parts lists Parts lists (cont.)
  • Page 135 Parts lists Parts lists (cont.)
  • Page 136 Parts lists Parts lists (cont.)
  • Page 137 Parts lists Parts lists (cont.)
  • Page 138 Parts lists Parts lists (cont.)
  • Page 139 Parts lists Parts lists (cont.)

  • Page 140: Commissioning/Service Reports

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

  • Page 141: Specification

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

  • Page 142: Certificates

    Certificates Declaration of conformity Declaration of conformity for the Vitodens 222-F We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole respon- sible body that the product Vitodens 222-F complies with the following standards: DIN 4702–6 EN 806 DIN 4753...

  • Page 143: Keyword Index

    Keyword index Keyword index Acknowledging a fault display....90 Electronic combustion controller..127 Extension ■ external H1........118 Boiler temperature sensor....104 ■ external H2........119 Brief scans.........84 ■ Internal........116, 117 Burner gasket........36 Extension kit for heating circuit with Burner gauze assembly.....36 mixer ..........110 Burner removal........35 External blocking......121 External demand......121 Calling up fault messages...
  • Page 144 Keyword index Keyword index (cont.) Relay test...........87 Ignition..........38 Remote control.........126 Ignition electrodes......38 Removing the front panel....23 Ionisation electrode......38 Reports..........140 Resetting codes......62, 74 Room temperature adjustment..55 Language selection......25 Rotational direction of mixer motor LON............56 ■ Changing........111 ■ Fault monitoring......57 ■ Checking........110 ■...
  • Page 148 4.8 to 19 kW 7419 987 ... 6.5 to 26 kW 7374 977 ... 8.8 to 35 kW 7374 978 ... Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB...

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Vitodens 222-f fs2a

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