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

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VIESMANN
Installation and service
instructions
for contractors
Vitodens 222-F
Type FS2B
Compact gas condensing boiler
4.8 to 35 kW natural gas and LPG version
For applicability, see the last page
VITODENS 222-F
Please keep safe.
5457 552 GB
2/2010

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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 FS2B Compact gas condensing boiler 4.8 to 35 kW natural gas and LPG version For applicability, see the last page VITODENS 222-F Please keep safe. 5457 552 GB 2/2010...
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ all current safety regulations as defined by DIN, EN, DVGW, TRGI, Danger TRF, VDE and all locally applicable This symbol warns against the standards, risk of injury.
  • Page 3 ■ When using gas as fuel, also close the For replacements, use only orig- main gas shut-off valve and safeguard inal spare parts from Viessmann against unauthorised reopening. or those which are approved by ■ Isolate the system from the power sup- Viessmann.

  • Page 4: Table Of Contents

    Index Index 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.) Weather-compensated control unit..............127 Internal extensions....................130 External extensions (accessories)................ 132 Control functions....................136 Assigning the heating circuits to the remote control..........144 Electronic combustion controller................144 Designs Internal connection diagram................. 146 External connection diagram................147 Parts lists......................149 Commissioning/service reports................

  • Page 6: Preparing For Installation

    Set up for operation with natural gas E and LL. 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 area...
  • 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 d (mm) 1027 1027 1227 e (mm) 1082 1082 1302 f (mm) 1137 1137 1337 g (mm) 1191 1191 1391 h (mm)
  • 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 to DIN 1988 G Non-return valve (accessory to connection sets for H Drain unfinished walls) K Cold water B Safety valve L Drinking water filter C Visible blow-off line outlet M Pressure reducer to DIN 1988-2, D Shut-off valve...

  • 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 Installation sequence Installing the boiler (cont.) Gas connection Notes regarding operation with LPG. 2. Carry out a tightness test. We recommend the installation of an external safety solenoid valve when Note installing the boiler in rooms below For the tightness test, use only suita- ground level.

  • Page 14: Opening The Control Unit Casing

    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 receiver B Vitotrol 100 UTDB (only for constant temperature control units) C Vitotrol 100 UTA (only for constant temperature control units) Vitotrol 100 UTDB-RF wireless receiver (only for constant tempera- ture control units) fÖ...
  • Page 17 Installation sequence Electrical connections (cont.) Never interchange cores Low voltage plug X3 "L1" and "N". ! Outside temperature sensor (only for weather-compensated control ■ Install an isolator in the power units) supply line that simultaneously isolates all non-earthed conduc- Installation: tors from the mains with at least ■...
  • Page 18 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 panels..........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................38 • 22. Checking the neutralising system (if installed) • 23. Checking the anode connection........38 •...

  • Page 23: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panels 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 drain & fill 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 units: diverter valve will still be in its central position, and the system will be com-...

  • Page 25: Weather-Compensated Control Units

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the language (if required) – only for weather-compen- sated control units Note 3. "Language" 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 The 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.) 6. Check that the condensate pipe is 8. Secure control unit back in operating connected correctly to the siphon and position. heat exchanger. 7. Refit cover panel. Designating heating circuits – only for weather-compensated control units In the delivered condition, the heating Enter names for heating cir-...

  • 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 EE Check the ignition module (control voltage 230 V across plugs "X2.1" and "X2.2") Gas train opens Fault EE 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 Initiate a heat tion of the com- draw-off. Switch bustion controller the boiler OFF and ON again. Press reset button For further fault details, see page 102. Checking the static and supply pressure Danger CO build-up as a result of an incorrect burner setup can have serious health...

  • Page 32: Setting The Maximum Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Start the boiler. 7. Record the actual value in the service report on page 157. Note Take the action shown in the follow- During commissioning, the boiler can ing table. enter a fault state because of airlocks in the gas line.

  • Page 33: Checking The Balanced Flue System For Tightness (Annular Gap Check)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. "Change?" Select "Yes". 2. Select Ú "3" and confirm with OK. A value flashes on the display (e.g. A value flashes on the display (e.g. "85"). In the delivered condition, this "85") and "A"...

  • Page 34: 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 35: 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 36: Checking And Adjusting The Ignition And Ionisation Electrodes

    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 37 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Thoroughly flush heat exchanger A with water. 4. Install the burner. Fit the screw with a serrated washer and the remaining screws, then torque diagonally with 4 Nm. 5. Fit the gas supply pipe with a new gasket.

  • Page 38: 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 39: 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 40 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 41: 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 42: Cleaning The Primary Store

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary store 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 43: Checking And Replacing The Magnesium Anode (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and replacing the magnesium anode (if required) Check the magnesium anode. If it is discovered that the anode has degraded to 10 to 15 mm Ø, we recommend replacing the magnesium anode. Returning the primary store into use 1.

  • Page 44: Checking The Diaphragm Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pressure Note Carry out this test on a cold system. 1. Drain the system, until the pressure gauge indicates "0". 2. If the diaphragm expansion vessel inlet pressure is lower than the static system pressure: Top up with nitro- gen via connection A, until the inlet...

  • Page 45: Checking The Pre-Charge Pressure And The Dhw Expansion Vessel (If Installed)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the pre-charge pressure and the DHW expansion ves- sel (if installed) 1. Check the static pressure of the DHW line downstream of the pressure reducer and adjust if required. Set value: max.
  • Page 46 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Operate the appliance with uncontaminated combustion air to prevent operating faults and damage. or O content ■ The CO content must be within the following limits (upper and lower output): –...

  • Page 47: Checking The External Lpg Safety Valve (If Installed) 36. Matching The Control Unit To The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the upper/lower output for 2. Select Ú " " and confirm with OK. weather-compensated control units: The display shows "I" and "on" flashes. 1. Press OK and simultaneously for approx.
  • Page 48 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 49 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 5 Flow temperature sensor M2 2 Outside temperature sensor 6 Heating circuit pump M2 3 Heating circuit with mixer M2 (heat-...
  • Page 50 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 51 A2 System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation 1 Vitodens 222-F 5 Temperature limiter for limiting the 2 Outside temperature sensor maximum temperature of underfloor 3 Heating circuit without mixer A1...
  • Page 52 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) 1 Vitodens 222-F 3 Heating circuit without mixer A1 (heating circuit 1)

  • Page 53: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4 Heating circuit pump A1 qQ Flow temperature sensor M3 5 Heating circuit with mixer M2 (heat- qW Heating circuit pump M3 ing circuit 2) qE Extension kit for one heating circuit 6 Flow temperature sensor M2 with mixer M3 7 Heating circuit pump M2...
  • Page 54 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Slope -5 -10 -15 -20 Outside temperature in °C A Heating curve slope for underfloor heating systems B Heating curve slope for low temper- ature heating systems (according to the Energy Savings Order [Ger- many])
  • Page 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 Units)

    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 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 Instructing the system user The system installer must hand the operating instructions to the system user and instruct him/her in the operation of the system.

  • Page 61: Calling Up Coding Level 1

    Code 1 Calling up coding level 1 Note 6. If you want to reset all codes to ■ On weather-compensated control their 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 Note setting of other codes are not dis-...

  • Page 62: General/Group "1

    Code 1 General/Group "1" Select "General" for weather-compensated control units (see page 61). Select "1" for constant temperature control units (see page 61). Coding Coding in the delivered condition Possible change System design 00:2 System version 1: 00:2 For system schemes, see One heating circuit with- the following table: out mixer (A1), with DHW...
  • Page 63 Code 1 General/Group "1" (cont.) Coding in the delivered condition Possible change Internal circulation pump function 51:0 Internal circulation pump 51:1 System with low loss always starts when there header: is a heat demand When there is a heat demand, the internal circu- lation pump only starts when the burner is opera- tional (with pump run-on).

  • Page 64: Boiler/Group "2

    Code 1 General/Group "1" (cont.) Coding in the delivered condition Possible change Set flow temperature for ext. demand 9b:70 Set flow temperature in 9b:0 Set flow temperature for case of external demand external demand adjusta- 70 °C 9b:127 ble from 0 to 127 °C (limited by boiler-specific parame- ters) Boiler/Group "2"...

  • Page 65: Dhw/Group "3

    Code 1 DHW/Group "3" Select "DHW" for weather-compensated control units (see page 61). Select "3" for constant temperature control units (see page 61). Coding Coding in the delivered condition Possible change Enable DHW circulation pump 73:0 DHW circulation pump: 73:1 "ON"...
  • Page 66 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter address With heating circuit pump logic function: Heating cir- A5:... cuit pump "OFF" AT > RT + 1 K AT > RT AT > RT - 1 K AT > RT - 9 K Coding in the delivered condition Possible change...
  • Page 67 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump idle time, transition red. mode A9:7 With pump idle time: A9:0 Without pump idle time Heating circuit pump A9:1 With pump idle time; "OFF"...
  • Page 68 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter With heating circuit pump logic function: address b5:... Heating circuit pump "OFF" Heating circuit pump "ON" > RT < RT - 1 K actual actual > RT - 1 K <...
  • Page 69 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Max. pump speed in standard mode E6:... Maximum speed of the E6:0 Maximum speed adjusta- variable speed heating ble from 0 to 100 % circuit pump in % of the E6:100 max.
  • Page 70 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump control in "Only DHW" F6:25 In the "Only DHW" oper- F6:0 In the "Only DHW" operat- ating mode, the internal ing mode, the internal cir- circulation pump is per- culation pump is perma- manently ON (only for...
  • Page 71 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Increase set flow temperature FA:20 Raising the set boiler FA:0 Temperature rise adjusta- water temperature or the ble from 0 to 50 % set flow temperature FA:50 when changing from...

  • Page 72: Calling Up Coding Level 2

    Code 2 Calling up coding level 2 Note 6. Select value according to the follow- ■ In coding level 2, all codes are acces- ing tables and confirm with "OK". sible, including the codes from coding level 1. 7. If you want to reset all codes to ■...

  • Page 73: General/Group "1

    Code 2 Calling up coding level 2 (cont.) 7. If you want to reset all codes to Note their delivered condition: This also resets codes from coding Select Ú "7" and confirm with OK. level 1. When " " flashes, confirm with OK. General/Group "1"...
  • Page 74 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change No access to the coding 11:9 Access open to the coding 11:≠9 addresses for the com- addresses for the combus- bustion controller param- tion controller parameters eters 25:0 Without outside tempera- 25:1 With outside temperature...
  • Page 75 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change 3A:0 Function input DE1 at 3A:1 Function input DE1: Heat- extension EA1: No func- ing program changeover tion 3A:2 Function input DE1: Exter- nal demand with set flow temperature.
  • Page 76 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change 3b:0 Function input DE2 at 3b:1 Function input DE2: Heat- extension EA1: No func- ing program changeover tion 3b:2 Function input DE2: Exter- nal demand with set flow temperature.
  • Page 77 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change 3C:0 Function input DE3 at 3C:1 Function input DE3: Heat- extension EA1: No func- ing program changeover tion 3C:2 Function input DE3: Exter- nal demand with set flow temperature.
  • Page 78 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change 3F:0 Internal circulation pump 3F:1 Internal circulation pump stays in control mode at stops at signal "External signal "External demand" demand" 3F:2 Internal circulation pump starts at signal "External demand"...
  • Page 79 Code 2 General/Group "1" (cont.) Coding in the delivered condition Possible change 79:1 With LON communication 79:0 Control unit is not fault module: Control unit is manager fault manager (only for weather-compensated control units) 7b:1 With LON communication 7b:0 Does not transmit time module: The control unit transmits the time (only for weather-compensa-...
  • Page 80 Vitotronic 200-H (only for weather-com- pensated control units) 98:1 Viessmann system num- 98:1 System number adjustable ber (in conjunction with from 1 to 5 monitoring several sys- 98:5...

  • Page 81: 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 20 min.

  • Page 82: Dhw/Group "3

    Code 2 Boiler/Group "2" (cont.) Coding in the delivered condition Possible change 21:0 No service interval (hours 21:1 The number of hours run run) selected before the burner should 21:100 be serviced is adjustable from 100 to 10,000 h One adjusting step ≙ 100 h 23:0 No time interval for...
  • Page 83 Code 2 DHW/Group "3" (cont.) Coding Coding in the delivered condition Possible change 56:0 Set DHW temperature 56:1 Set DHW temperature adjustable from 10 to adjustable from 10 to 60 °C above 60 °C Note Maximum value subject to boiler coding card. Observe the max.

  • Page 84: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3/Group "5

    Coding in the delivered condition Possible change 65:... Information regarding the type of diverter valve (not adjustable): 0: no diverter valve 1: Viessmann diverter valve 2: Wilo diverter valve 3: Grundfos diverter valve 6C:100 Set speed; internal circu- 6C:0 Set speed adjustable from...
  • Page 85 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding Coding in the delivered condition Possible change A0:0 Without remote control A0:1 With Vitotrol 200A (auto- (only for weather-com- matic recognition) pensated control units) A0:2 With Vitotrol 300A or Vitohome 300 (automatic recognition) A1:0...
  • Page 86 Code 2 Heating circuit 1, heating circuit 2, heating… (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 units) "A3: -9" has been selec- ted.
  • Page 87 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change 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 units) switched OFF and the mixer closed at a variable...
  • Page 88 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change b0:0 With remote control: b0:1 Heating mode: Weather- Heating mode/reduced compensated mode: Weather-compen- Reduced mode: With room sated (only for weather- temperature hook-up compensated control b0:2 Heating mode: With room...
  • Page 89 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change C5:20 Electronic minimum flow C5:1 Minimum limit adjustable temperature limit 20 °C from 1 to 127 °C (limited by (only for weather-com- C5:127 boiler-specific parameters) pensated control units) C6:74...
  • Page 90 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change d8:0 No heating program d8:1 Heating program change- changeover via extension over via input DE1 at exten- sion EA1 d8:2 Heating program change- over via input DE2 at exten- sion EA1 d8:3...
  • Page 91 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change E8:1 Minimum speed in opera- E8:0 Speed subject to the set- tion with reduced room ting in coding address temperature subject to "E7" the setting in coding address "E9"...
  • Page 92 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change F6:25 In the "Only DHW" oper- F6:0 In the "Only DHW" operat- ating mode, the internal ing mode, the internal cir- circulation pump is per- culation pump is perma- manently ON (only for nently OFF...
  • Page 93 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change FA:20 Raising the set boiler FA:0 Temperature rise adjusta- water temperature or the ble from 0 to 50 % set flow temperature FA:50 when changing from operation with reduced room temperature to...

  • Page 94: Diagnosis And Service Scans Calling Up The Service Menu

    Diagnosis and service scans Calling up the service menu Only for weather-compensated control units Press OK and å simultaneously for approx. 4 s. Service menu overview Service General Diagnosis Heating circuit 1 Heating circuit 2 Actuator test Heating circuit 3 Coding level 1 Brief scan Reset data...
  • Page 95 Diagnosis and service scans Diagnosis (cont.) Note "- - -" appears on the display if a sensor that has been scanned is faulty. Calling up operating data 3. Select required group, e.g. "Gen- eral". Weather-compensated control unit Constant temperature control unit 1.
  • Page 96 Diagnosis and service scans Diagnosis (cont.) Diagnosis Brief scan Select with For an explanation of the relevant values in the individual lines and fields, see the following table: Line (brief Field scan) Software version Equipment version Burner control unit ver- Control unit sion System schemes 01...
  • Page 97 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Heating circuit A1 Heating circuit M2 Heating circuit M3 (without mixer) (with mixer) (with mixer) Remote Software Remote Software Remote Software control version control version control version 0: w/o Remote 0: w/o Remote 0: w/o...
  • Page 98 Diagnosis and service scans Diagnosis (cont.) For explanations of individual scans, see the following table: Brief scan Display System Software version Software schemes 1 Control unit version to 2 Program- ming unit Software version Burner control unit External hook-up 0 - 10 V Display in °C 0: no external hook-up Set boiler water temperature...

  • Page 99: Checking Outputs (Relay Test)

    Diagnosis and service scans Diagnosis (cont.) Brief scan Display Software Output A1 Output A1 Output A2 Output A2 version configura- switching configura- switching tion state tion state (value corre- 0: OFF (value cor- 0: OFF sponds to 1: ON responds to 1: ON code 33 set- code 34 set-...
  • Page 100 Diagnosis and service scans Checking outputs (relay test) (cont.) Display Explanation Start valve Heating Diverter valve set to heating mode Start valve centre Diverter valve in central position (filling/draining) Start valve cylinder Diverter valve set to DHW mode Start htg circ pump HC2 Heating circuit pump output enabled (extension to heat- ing circuit with mixer) Open mixer HC2...
  • Page 101 Diagnosis and service scans Checking outputs (relay test) (cont.) Display Explanation Contacts P - S at plug aBJ for extension EA1 closed Output A1 at extension AM1 enabled Output A2 at extension AM1 enabled...

  • Page 102: Troubleshooting Fault Display

    Troubleshooting Fault display Weather-compensated control unit If there is a fault, the red fault indicator Calling up acknowledged faults A flashes. " " flashes on the display and "Fault" is shown. Select "Fault" in the standard menu. The current faults will be displayed in a list.
  • Page 103 Troubleshooting Fault display (cont.) Constant temperature control unit If there is a fault, the red fault indicator A fault messaging facility, if connected, A flashes. The two-digit fault code and will be switched OFF. (subject to the type of fault) " " or " " If an acknowledged fault is not remedied, flash on the programming unit display.

  • Page 104: Fault Codes

    Troubleshooting Fault codes Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Regulates as if Short circuit, Check the outside the outside outside tem- temperature sen- temperature perature sen- sor (see were 0 °C page 116) Regulates as if Lead break, Check the outside the outside...
  • Page 105 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Mixer closes Lead break, Check flow temper- flow tempera- ature sensor ture sensor, heating circuit 2 (with mixer) Mixer closes Lead break, Check flow temper- flow tempera- ature sensor ture sensor,...
  • Page 106 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code The burner Internal circu- Check the circula- operates at its lation pump tion pump lower output if a blocked heating circuit with mixer is connected.
  • Page 107 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Mixer regulates Communica- Check extension to a flow tem- tion error, kit connections and perature of extension kit code 20 °C for heating circuit 3 (with mixer) Control mode Communica-...
  • Page 108 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code 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 "30"...
  • Page 109 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Control mode Communica- Check electrical tion error, ext. connections extension Control mode Communica- Replace the LON tion error, communication LON commu- module nication mod- Control mode Input DE1 Remove fault at the...
  • Page 110 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Control mode Lead break, Check room tem- without room room temper- perature sensor for influence ature sensor, heating circuit 1 heating circuit and remote control 1 (without settings (see mixer)
  • Page 111 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Heat draw-off Initiate a heat state repeatedly draw-off. Switch too low during the boiler OFF and calibration ON again. Press reset button Burner in a fault Parameter Press reset button...
  • Page 112 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Flame is lost Check the gas sup- state after flame ply (gas pressure has built. and gas flow lim- iter), check the flue gas/ventilation air system for flue gas recirculation,...
  • Page 113 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault The fuel 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, the state...
  • Page 114 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code 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 115: Repairs

    Troubleshooting Repairs Putting control unit in maintenance position If required for commissioning and serv- icing, the control unit can be put in a dif- ferent position.
  • Page 116 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 much as required. 2. Route hose at drain valve A into a suitable container or drain outlet.
  • Page 117 Troubleshooting Repairs (cont.) 2. Test the resistance of the outside 3. Where actual values deviate severely 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 118 Troubleshooting Repairs (cont.) Checking the boiler temperature sensor, cylinder temperature sensor or flow temperature sensor of the low loss header...
  • Page 119 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 120 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 121 Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded. Reset the interlock after the flue system has cooled down by pressing reset button R. 1.
  • Page 122 Troubleshooting Repairs (cont.) Checking the plate 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 plate heat exchanger. 1. Shut off and drain the boiler on its 4.
  • Page 123 Troubleshooting Repairs (cont.) 6. Check the connections on the heat- 7. Install in reverse order with new gas- ing water and DHW side for contam- kets. ination and scaling; if required, replace the plate heat exchanger. Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx.
  • Page 124 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 Checking the setting of rotary selec- Heating circuit Rotary...
  • Page 125 Troubleshooting Repairs (cont.) Checking the rotational direction of Note the rotational direction of the mixer the mixer motor motor during its self-test. Then set the mixer manually to "Open" After being switched ON, the boiler again. implements a self-test. During this, the mixer is opened and closed again.

  • Page 126: Function Description Constant Temperature Control Unit

    Function description Constant temperature control unit °C Heating mode 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.

  • Page 127: 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 128 Function description Weather-compensated control unit (cont.) Heating mode 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. room temperature-dependent remote control is connected) and to the slope/ level of the heating curve.
  • Page 129 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 130: Internal Extensions

    Function description Internal extensions Internal extension H1 The internal extension H1 is integrated An external safety valve can be connec- into the control unit casing. The cylinder ted to gD. primary pump is connected to relay out- put sK.
  • Page 131 Function description Internal extensions (cont.) Internal extension H2 (accessories) 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 132: External Extensions (Accessories)

    Function description External extensions (accessories) Extension AM1 fÖA Power supply terminal for addi- Circulation pump Circulation pump tional accessories fÖ Power supply [terminals] aVG KM BUS...
  • Page 133 Function description External extensions (accessories) (cont.) Functions Allocating functions for outputs A1 and A2 One of the following circulation pumps can be connected to each of the termi- Select the function for these outputs via nals A1 and A2: the codes on the boiler control unit: ■...
  • Page 134 Function description External extensions (accessories) (cont.) Extension EA1 Digital input 1 Central fault message/feed Digital input 2 pump/DHW circulation pump Digital input 3 (zero volt) 0 - 10 V 0 - 10 V input KM BUS fÖ Power supply [terminals] fÖA Power supply terminal for addi- tional accessories...
  • Page 135 Function description External extensions (accessories) (cont.) Digital data inputs DE1 to DE3 Effect on the pumps of external block- ing function The following functions can be connec- ted alternatively: The effect on the internal circulation ■ External heating program changeover pump is selected with code 3E.

  • Page 136: Control Functions

    Function description External extensions (accessories) (cont.) Function assignment Select the function of output aBJ via code 36 at the boiler control unit. Control functions External heating program changeover The "External heating program change- The function is selected via the following over"...
  • Page 137 Function description Control functions (cont.) Heating program changeover Code No heating program changeover F2:0 Duration of the heating program changeover 1 to 12 hours F2:1 to F2:12 The heating program changeover stays enabled for as long as the contact remains closed, but at least as long as the duration selected in coding address "F2".
  • Page 138 Function description Control functions (cont.) External demand Code Input DE1 3A:2 Input DE2 3b:2 Input DE3 3C:2 The effect on the internal circulation The minimum set boiler water tempera- pump is selected with code 3F. ture in case of external demand is selec- The effect on the relevant heating circuit ted in coding address "9b".
  • Page 139 Function description Control functions (cont.) When the screed drying function is acti- The various temperature profiles are vated, the heating circuit pump of the adjustable via coding address "F1". mixer circuit is switched ON and the flow The function continues after power fail- temperature will be held in accordance ure or after the control unit has been with the selected profile.
  • Page 140 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 141 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 142 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 143 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 144: Assigning The Heating Circuits To The Remote Control

    Function description Assigning the heating circuits to the remote control The heating circuit assignment must be configured when commissioning the Vitotrol 200A or Vitotrol 300A. Heating circuit Configuration Vitotrol 200A Vitotrol 300A The remote control affects the heating circuit with- out mixer A1 The remote control affects the heating circuit with mixer M2...
  • Page 145 Function description Electronic combustion controller (cont.) Air factor λ – CO content Air factor λ O content (%) CO content (%) for nat- content (%) for ural gas H 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 146: Designs

    Designs Internal connection diagram Main PCB dÖ Stepper motor for diverter valve X... Electrical interfaces Thermal circuit breaker § 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...

  • Page 147: External Connection Diagram

    Designs External connection diagram Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
  • Page 148 Designs External connection diagram (cont.) Connection adaptor sÖ Internal circulation pump LON communication module Gas solenoid valve Internal extension H1 fÖ Power supply [terminals] 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...

  • Page 149: 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 150 Parts lists Parts lists (cont.) 100 O-ring 8 x 2 (5 pce.) 301 Casing back panel 102 Locking clip, condensate drain 302 Boiler coding card 103 Drain plug (set) 303 Fuse 6.3 A slow (10 pce.) 104 Cap 304 Fuse holder 105 Hose 7 10 x 1.5 x 750 305 Programming unit for weather- 106 Union nut G 1...
  • Page 151 Parts lists Parts lists (cont.)
  • Page 152 Parts lists Parts lists (cont.)
  • Page 153 Parts lists Parts lists (cont.)
  • Page 154 Parts lists Parts lists (cont.)
  • Page 155 Parts lists Parts lists (cont.)
  • Page 156 Parts lists Parts lists (cont.)

  • Page 157: 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 H mbar 17.4-25 mbar = for LPG mbar 25-47 mbar Tick gas type Carbon dioxide con- tent CO ■...

  • Page 158: Specification

    Specification Specification Rated voltage 230 V Electronic tempera- Rated frequency 50 Hz ture limiter setting 81 °C Rated current Temperature limiter Protection class setting 100 °C (fixed) IP rating IP X 4 D to Line fuse (mains) max. 16 A EN 60529 Permissible ambient temperature ■...

  • Page 159: 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 4753 EN 55 014 EN 483...

  • Page 160: Manufacturer's Certificate According To The 1St Bimschv [Germany]

    Certificates Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the product Vitodens 222-F complies with the NO limits specified by the 1st BImSchV para- graph 7 (2) [Germany]. Allendorf, 1 February 2010 Viessmann Werke GmbH&Co KG...

  • Page 161: Keyword Index

    Keyword index Keyword index Acknowledging a fault display..102 Electronic combustion controller..144 Extension ■ AM1..........132 Boiler draining ■ EA1..........134 ■ DHW side........41 ■ internal........130, 131 Boiler temperature sensor....118 Extension kit for heating circuit with Boosting DHW heating.....129 mixer ..........124 Brief scans.........95 External blocking......137 Burner gasket........35 External demand......137...
  • Page 162 Keyword index Keyword index (cont.) Relay test...........99 Ignition..........36 Remote control.........144 Ignition electrodes......36 Removing the front panels....23 Ionisation electrode......36 Reports..........157 Resetting codes......61, 72 Room temperature adjustment..55 Language selection......25 Rotational direction of mixer motor LON............56 ■ Changing........125 ■ Fault monitoring......57 ■ Checking........125 ■...
  • Page 164 7438 004 ... , 7438 007 ... 6.5 to 26 kW 7438 005 ... , 7438 008 ... 8.8 to 35 kW 7438 006 ... , 7438 009 ... Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0...

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