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VIESMANN Installation and service instructions for contractors Vitodens 222-F Type B2TB, 1.8 to 35.0 kW Gas condensing storage combi boiler Natural gas and LPG version For applicability, see the last page VITODENS 222-F Please keep safe. 5789 302 GB 11/2016...
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Hot surfaces can cause burns. Replace faulty components only with genuine ■ Before maintenance and service work, switch Viessmann spare parts. OFF the appliance and let it cool down. Never touch hot surfaces on the boiler, burner, ■ flue system or pipework.
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For replacements, use only original spare parts supplied or approved by Viessmann. Safety instructions for operating the system If you smell gas Condensate Danger...
Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Vitodens 222-F, type B2TB ..............■ 2. Preparing for installation Preparing for boiler installation .............. Safety assembly to DIN 1988 and EN 806 on the cold water connec- ■...
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Index Index Maintenance ..................101 Putting the control unit into the service position ......... 101 ■ Draining the boiler on the heating water side ........102 ■ Checking the outside temperature sensor .......... 103 ■ Checking the boiler water temperature sensor, cylinder temperature ■...
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Index Index (cont.) 15. Keyword index ........................152...
Please dispose of packaging waste in line with statu- DE: Use the disposal system organised by tory regulations. Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of by the HVAC contractor.
LL. For conversion to LPG P (possible without conversion kit), see "Commissioning, inspec- tion and maintenance". The Vitodens 222-F may only be delivered to countries listed on the type plate. For deliveries to other coun- tries, approved contractors must arrange individual approval on their own initiative and in accordance with the law of the country in question.
Preparing for installation Preparing for boiler installation Use a connection set or connection kit, available as an Note accessory, to make the connection on the gas and Fit safety equipment in accordance with the national water sides. regulations. Fitting accessories Please note Fit all accessories that are installed at the back of the Avoid damaging the appliance.
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Preparing for installation Preparing for boiler installation (cont.) 1. Prepare the connections on the heating water side. Thoroughly flush the heating system. Note Should an additional expansion vessel be required on site, connect this vessel in the heating return. 2. Prepare the connections on the DHW side. Install the safety assembly (accessories or on-site provi- sion) in the cold water line to DIN 1988 and EN 806 (see page 11).
Preparing for installation Preparing for boiler installation (cont.) Safety assembly to DIN 1988 and EN 806 on the cold water connection GH D D H L D N K Fig. 4 Safety assembly (accessories for connection sets Drain outlet for unfinished walls) Cold water Safety valve Drinking water filter...
Installing the boiler Connections on the heating water and DHW side Fig. 7 Shown with connection sets for finished walls (accessories) Heating flow R Cold water R ¾ ½ DHW R Heating return R ½ ¾ DHW circulation R (separate accessories) ½...
■ flue system" enclosed with the technical documenta- tion may only be used in conjunction with the Viessmann flue system made by Skoberne. ■ During installation and positioning of the flue system, observe Building Regulations Part L and BS 5440 [GB only].
Installing the boiler Gas connection Fig. 9 1. Seal gas shut-off valve to the gas connection. 3. Purge the gas line. Information on operation with LPG Conversion to alternative gas types: Install an external safety solenoid valve if the boiler See page 36.
Installing the boiler Opening the control unit enclosure Fig. 10 Electrical connections Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing any work, touch earthed objects such as heating or water pipes to dis- charge static loads.
Installing the boiler Electrical connections (cont.) Routing the power cable 230 V~ Fig. 11 Note The power cable (already connected to the control unit) is packed in the appliance behind the control unit. LON communication module (accessories) Main PCB Internal extension (accessories)
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Installing the boiler Electrical connections (cont.) 230V~ 230V~ 3 2 1 Fig. 12 Connections to 230 V~ plugs Information on connecting accessories Power cable already connected. When connecting accessories observe the sep- fÖ ■ Power supply for accessories arate installation instructions provided with ■...
Installing the boiler Electrical connections (cont.) Outside temperature sensor For fitting the wireless outside temperature sensor Not immediately below balconies or gutters ■ (wireless accessory): ■ Never render over Wireless base station installation and service Outside temperature sensor connection instructions 2-core lead, length max.
Installing the boiler Electrical connections (cont.) Plug EA1 extension Floating contact Floating contact (when connected, remove jumper EA1 extension between L and 1) Parameter settings Parameter settings "4b:1" in the "General" group Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) in the ■...
Installing the boiler Electrical connections (cont.) Plug EA1 extension Floating contact Floating contact (when connected, remove jumper EA1 extension between L and 1) Parameter settings Parameter settings "4b:2" in the "General" group Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) in the ■...
Installing the boiler Electrical connections (cont.) Power supply to all accessories via heat source control unit Fig. 15 Some accessories with direct power supply Fig. 16 Heat source control unit AM1 extension or EA1 extension Extension kit for heating circuit with mixer M2 On-site ON/OFF switch (control unit for weather-compensated operation Mains input...
Installing the boiler Electrical connections (cont.) Routing connecting cables Please note Connecting cables/leads will be damaged if they touch hot components. When routing and securing cables/leads on site, ensure that the maximum permissible tempera- ture for these is not exceeded. Fig.
Installing the boiler Closing the control unit enclosure Fig. 18 Insert the programming unit (packed separately) into the control unit support. Note The programming unit can also be inserted into a wall mounting base (accessories) near the boiler. Wall mounting base installation instructions...
Commissioning, inspection, maintenance Removing the front panels See page 12 Filling the heating system Fill water According to EN 1717 with DIN 1988-100, as a heat Please note transfer medium for DHW heating, the heating water Unsuitable fill water increases the level of must meet fluid category ≤...
Commissioning, inspection, maintenance Filling the heating system (cont.) 4. Fill the heating system via boiler drain & fill valve 5. If the control unit was already on before filling: in the heating return (depending on the connec- switch the control unit ON and activate the filling tion set either on the side or above the boiler).
Commissioning, inspection, maintenance Venting the boiler 1. Close the shut-off valves on the heating water side. Note Only carry out the following tasks with the control unit switched off. 2. Pivot control unit forwards and remove cover panel 3. Push the drain hose onto air vent valve connect to a drain.
Commissioning, inspection, maintenance Filling the trap with water (cont.) 3. Disconnect corrugated hose 7. Reassemble the trap in reverse order. from lute 4. Turn lute, tilt slightly and pull downwards. 8. Check that the condensate pipe is connected cor- rectly to the trap and heat exchanger. 5.
Commissioning, inspection, maintenance Commissioning the system Commissioning assistant 1. Turn on the ON/OFF switch on the control unit. The commissioning assistant starts automatically. 2. Optional settings and functions for commissioning are listed in the following table. Note The optional settings and functions depend on the type of appliance.
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Commissioning, inspection, maintenance Commissioning the system (cont.) Menu point Settings and explanations "Energy cockpit" "ON" ■ The Energy cockpit with various scanning options is displayed. "OFF" ■ The Energy cockpit is not displayed. "Flue system" "Single connection" ■ (not Vitodens 3xx) Only one boiler is connected to the flue system.
Commissioning, inspection, maintenance Commissioning the system (cont.) Solar thermal system 7. Confirm the system scheme with "Next". DHW cylinder Heat generator (segments are sum- marised for compact appliances) Low loss header Heating circuits Ventilation system (not shown) Further settings for the system components Further settings (fine adjustments) can be performed 3.
Commissioning, inspection, maintenance Checking the gas type (cont.) For operation with natural gas, no adjustment is 1. Determine the gas type and Wobbe index by ask- ■ therefore required across the entire Wobbe index ing your local gas supply utility or LPG supplier. range.
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Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) 03. Undo screw 08. Record the actual value in the report on inside test connector "PE" on the gas train, but do not remove it, and connect the page 147. pressure gauge.
Commissioning, inspection, maintenance Function sequence and possible faults Display Action Control unit issues a heat Increase set value and en- demand sure heat is drawn off. Fan starts Fan starts 4 times for Check the fan, fan connect- approx. 50 s, followed by ing cables, power to the fan fault F9 and fan control.
Commissioning, inspection, maintenance Setting the max. heating output A limit can be set on the maximum heating output for 06. Check whether a sufficient flow rate is guaranteed. heating operation. The limit is set via the modulation If necessary, increase the heat transfer. range.
Commissioning, inspection, maintenance Tightness test on balanced flue system (annular gap check) Fig. 28 Combustion air aperture (ventilation air) For balanced flue systems tested together with the If the CO concentration is less than 0.2 % or the O heat source, there is no requirement for a tightness concentration is greater than 20.6 %, the flue pipe is test (overpressure test) during commissioning by the deemed to be sufficiently gas tight.
Commissioning, inspection, maintenance Removing the burner Fig. 29 1. Switch OFF the power supply and the ON/OFF 4. Undo gas supply pipe fitting switch at the control unit. 5. Undo four screws and remove the burner. 2. Close the gas shut-off valve and safeguard against reopening.
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Commissioning, inspection, maintenance Checking the burner gasket and burner gauze… (cont.) Fig. 30 1. Remove electrodes 5. Fit thermal insulation ring 2. Undo 2 retaining clips on thermal insulation ring 6. Fit electrodes and then remove thermal insulation ring Torque: 4.5 Nm. 3.
Commissioning, inspection, maintenance Checking and adjusting the ignition and ionisation electrodes ±1 Fig. 31 Ignition electrodes Ionisation electrode 1. Check the electrodes for wear and contamination. 3. Check the electrode gaps. If the gaps are not as specified or the electrodes are damaged, replace 2.
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Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) Fig. 33 01. Pivot the control unit forwards. Remove cover 06. Clean the internal pipe and the lute of the trap. panel and insulating cover from DHW cylinder. 07. Fill lute with water, refit it and push on corruga- 02.
Commissioning, inspection, maintenance Installing the burner Fig. 34 1. Insert the burner and tighten screws crosswise. 4. Connect the electrical cables/leads: Torque: 8.5 Nm ■ Fan motor ■ Ionisation electrode 2. Fit gas supply pipe with a new gasket. Gas train ■...
Commissioning, inspection, maintenance Checking the anode connection and anode earth… (cont.) Fig. 35 1. Remove cover (two-part design up to 26 kW). 3. Connect tester (up to 5 mA) in series between tab and earth cable 2. Remove earth cable from tab ■...
Commissioning, inspection, maintenance Cleaning the loading cylinder Note According to EN 806, a visual inspection and (if neces- sary) cleaning must be carried out no later than two years after commissioning, and as required thereafter. Fig. 37 1. Drain the loading cylinder. 5.
Commissioning, inspection, maintenance Re-assembling and filling the loading cylinder Fig. 38 1. Reconnect the loading cylinder to the pipework. 4. Push earth cable onto the tab. 2. Insert new gasket underneath flange cover 5. Fit cover (two-part design up to 26 kW). 3.
Commissioning, inspection, maintenance Checking the expansion vessel and system… (cont.) Note Check whether the installed diaphragm expansion ves- The diaphragm expansion vessel can lose some sel is adequate for the system water volume. charge pressure over time. When the boiler heats up, the pressure gauge indicator may rise to 2 or 3 bar (0.2 or 0.3 MPa).
Commissioning, inspection, maintenance Checking all gas equipment for tightness at operating pressure Danger Note Escaping gas leads to a risk of explosion. Only use suitable and approved leak detection agents Check all gas equipment for tightness. (EN 14291) and devices for the tightness test. Leak detection agents with unsuitable constituents (e.g.
Commissioning, inspection, maintenance Checking the combustion quality (cont.) 5. Set the lower heating output: 7. Ending output selection: "Base load" "ON". Burner runs at lower heating ä output. 8. End service functions. 6. Set the upper heating output: "Full load" "ON". Burner runs at upper heating output.
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Commissioning, inspection, maintenance Adjusting heating curves (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Fig. 42 Slope setting ranges: Reduced set room temperature ■ Underfloor heating systems: 0.2 to 0.8 ■ Low temperature heating systems: 0.8 to 1.6 Adjusting the set room temperature Individually adjustable for each heating circuit.
Commissioning, inspection, maintenance Adjusting heating curves (cont.) Tap the following buttons: 1. "Menu" 2. "Heating" 3. Select "Heating circuit 1/2/3" for the required heating circuit. 4. "Heating curve" 5. "Slope" or "Level" 6. Select heating curve according to the system Outside temperature in °C requirements with +/ –...
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Control unit receives outside — temperature. temperature. temperature. Set parameter "97:2". Set parameter "97:1". Set parameter "97:1". Viessmann system number. Viessmann system number. Viessmann system number. — Parameter "98:1" Parameter "98:1" Parameter "98:1" LON subscriber fault monitor- LON subscriber fault moni- LON subscriber fault moni- —...
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Commissioning, inspection, maintenance Calling up and resetting the "Service" display (cont.) After maintenance has been carried out 4. "Service functions" Tap the following buttons: 5. "Reset service" The selected service parameters for hours run and 1. "Menu" time intervals restart at 0. 2.
Parameter level 1 Calling up parameter level 1 Parameters are split into the following groups: 06. Select group. ■ – "General" – "Boiler" 07. Select parameter. – "DHW" – "Solar" 08. "Change" "Ventilation" – "Heating circuit 1/2/3" / for the required value in line with the tables –...
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Parameter level 1 General (cont.) "System scheme" Setting Explanations One heating circuit without mixer A1 (heat- 00:2 Value is set automatically ing circuit 1) with DHW heating One heating circuit with mixer M2 (heating 00:4 Set the value manually if the system is not equipped circuit 2) with DHW heating with a heating circuit without mixer.
Parameter level 1 General (cont.) "Operation enabled/disabled" Setting Explanations Everything operable 8F:0 Controls on the display Everything disabled apart from emissions 8F:1 test function Default display and emissions test function 8F:2 operable "Set flow temperature for external demand" Setting Explanations 70 °C 9B:70 ...
Parameter level 1 (cont.) "Set DHW temperature for reheating suppression" Setting Explanations 40 °C 67:40 For solar DHW heating: Set DHW temperature 40 °C. Above the selected set temperature reheating is sup- pressed..°C 67:0 to Set DHW temperature adjustable from 0 to 95 °C 67:95 (limited by boiler-specific parameters) "Enable DHW circulation pump"...
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Parameter level 1 Heating circuit 1, heating circuit 2, heating… (cont.) "Heating limit: Complete summer economy control" Setting Explanations None A6:36 Extended economy function disabled ... °C A6:5 to Extended economy function enabled: The burner and A6:35 heating circuit pump will stop at a variable value, ad- justable between 5 and 35 °C plus 1 °C.
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Parameter level 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter With economy function: b5:... Heating circuit pump "OFF" Heating circuit pump "ON" + 5 K < RT + 4 K > actual actual + 4 K < RT + 3 K >...
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Parameter level 1 Heating circuit 1, heating circuit 2, heating… (cont.) "Min. speed of speed-controlled heating circuit pump in standard mode" Setting Explanations 30 % E7:30 ... % E7:0 to Minimum speed adjustable from 0 to 100 % of the E7:100 maximum speed "Screed drying"...
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Parameter level 1 Heating circuit 1, heating circuit 2, heating… (cont.) "Duration for raising the set boiler water or flow temperature" Setting Explanations 60 min FB:60 See parameter "FA" See chapter "Function description" ... min FB:0 to Temperature rise adjustable from 0 to 240 min FB:240...
Parameter level 2 Calling up parameter level 2 Parameters are split into the following groups: 06. Enter "viexpert" password. ■ – "General" – "Boiler" 07. Select group. – "DHW" – "Solar" 08. Select parameter. "Ventilation" – "Heating circuit 1/2/3" 09. "Change" –...
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Parameter level 2 General (cont.) "System scheme" Setting Explanations One heating circuit without mixer A1 (heat- 00:2 Value is set automatically ing circuit 1) with DHW heating One heating circuit with mixer M2 (heating 00:4 Set the value manually if the system is not equipped circuit 2) with DHW heating with a heating circuit without mixer.
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Parameter level 2 General (cont.) "Function, output A1 at extension AM1" Setting Explanations DHW circulation pump 33:0 Heating circuit pump, heating circuit without 33:1 mixer A1 (heating circuit 1) Circulation pump for cylinder heating 33:2 "Function output, A2 at extension AM1" Setting Explanations DHW circulation pump...
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Parameter level 2 General (cont.) "Function, input DE3 at EA1 extension" Setting Explanations None 3C:0 Operating program changeover 3C:1 External demand with set flow temperature 3C:2 Set flow temperature setting: parameter 9B Internal circulation pump function: parameter 3F External blocking 3C:3 Internal circulation pump function: parameter 3E External blocking with fault message...
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Parameter level 2 General (cont.) "Flow temperature sensor for low loss header" Setting Explanations Without 52:0 With 52:1 Automatic recognition "Function, output, internal connection extension" Setting Explanations Actuator at terminal Central fault 53:0 DHW circulation pump 53:1 Heating circuit pump A1 53:2 Circulation pump for heating circuit without mixer Circulation pump for cylinder heating...
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Parameter level 2 General (cont.) "LON communication module: Fault manager" Setting Explanations Control unit is not fault manager 79:0 Control unit is fault manager 79:1 "LON communication module: time" Setting Explanations Control unit does not transmit the time 7B:0 Control unit transmits the time 7B:1 "Chimney connection"...
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Parameter level 2 General (cont.) "Display conditions, parameter" Setting Explanations For technical services department 8A:175 For technical services department 8A:176 "Operation enabled/disabled" Setting Explanations Everything operable 8F:0 Controls on the display Everything disabled apart from emissions 8F:1 test function Default display and emissions test function 8F:2 operable "Time constant for calculating the adjusted outside temperature"...
Parameter level 2 General (cont.) "Viessmann system number" Setting Explanations 98:1 Viessmann system number In conjunction with monitoring several systems via Vitocom 300 98:1 to System number adjustable from 1 to 5 98:5 "Recognition, extension DAP1" Setting Explanations Without 99:0...
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Parameter level 2 Boiler (cont.) "Single and multi boiler system" Setting Explanations Only if control unit has been changed to constant tem- perature mode. Single boiler system 01:1 Multi boiler system 01:2 If the boiler is operated in a multi boiler system. "Minimum burner pause time"...
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Parameter level 2 Boiler (cont.) "Interval until the next service" Setting Explanations No time interval 23:0 No time interval selected for service ... Months 23:1 to The number of months until the next service is adjust- 23:24 able from 1 to 24 "Service display"...
Parameter level 2 Boiler (cont.) "CO limiter" Setting Explanations Learning mode 49:0 Sensor monitoring and fault messaging en- 49:1 abled Deactivated 49:2 Note Parameter values in bold are factory settings. "Selection of set DHW temperature" Setting Explanations Between 10 ... 60 °C 56:0 Set DHW temperature adjustable from 10 to 60 °C...
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Parameter level 2 (cont.) "Function of circulation pump for cylinder heating at "External blocking" signal" Setting Explanations Remains in control mode 5E:0 Is switched off 5E:1 Is switched on 5E:2 "Function of circulation pump for cylinder heating at "External demand" signal" Setting Explanations Remains in control mode...
Parameter level 2 (cont.) "DHW circulation pump for auxiliary function DHW heating" Setting Explanations ON according to time program 72:0 72:1 "OFF" during DHW heating to set value 2 72:2 "ON" during DHW heating to set value 2 "Enable DHW circulation pump" Setting Explanations ON/OFF according to time program...
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter Heating circuit pump A3: ... "ON" "OFF" -10 °C -8 °C -9 °C -7 °C -8 °C -6 °C -7 °C -5 °C -6 °C -4 °C -5 °C -3 °C -4 °C -2 °C...
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Heating limit: Complete summer economy control" Setting Explanations None A6:36 Extended economy function disabled ... °C A6:5 to Extended economy function enabled: The burner and A6:35 heating circuit pump will stop at a variable value, ad- justable between 5 and 35 °C plus 1 °C.
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Room influence factor" Setting Explanations The higher the value the greater the room B2:8 Room influence factor 8 influence With remote control, and for the heating circuit, opera- tion with room temperature hook-up must be set Change value only for the heating circuit with mixer Without B2:0...
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Heating curve level" Setting Explanations D4:0 D4:-13 to Heating curve level adjustable from 13 K to 40 K – D4:40 "External operating program changeover" Setting Explanations The operating program changes to "Con- D5:0 stant central heating with reduced room temperature"...
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Display correction of the actual room temperature" Setting Explanations None E2:50 With remote control: No display correction of the ac- tual room temperature ... K E2:0 to Display correction –...
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Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Pump start heating circuit pump A1, standby mode" Setting Explanations Only if control unit has been changed to constant tem- perature mode. F7:0 In "Standby mode", the internal circulation pump is permanently off ...
Diagnosis and service scans Calling up the service menu Tap the following buttons: Note ■ "Parameter level 2" is only displayed if this level 1. "Menu" has been enabled: Enter "viexpert" password. 2. "Service" ■ to return to "Service, main menu" 3.
Resetting all passwords to their delivered condition Tap the following buttons: 5. "Change passwords" 1. Request the master password from the Technical 6. "Reset all passwords" Service at the Viessmann Group. 7. Enter master password. 2. "Menu" 8. Press OK 2 times to confirm. 3. "Service"...
Diagnosis and service scans Diagnosis (cont.) 5. Tap the system component that you wish to change. A list containing the current settings and the switching states appears. Brief scan In the brief scan, you can scan temperatures or call up 6.
Diagnosis and service scans Diagnosis (cont.) Row (brief Field scan) Subnet address/system num- Node address Number of LON subscribers SNVT or Software ver- Software version, neuron chip SVNT config- sion, commu- uration nication cop- rocessor Heating circuit A1/HC1 Heating circuit M2/HC2 Heating circuit M3/HC3 Remote con- Software ver-...
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Diagnosis and service scans Checking outputs (actuator test) (cont.) The following actuators (relay outputs) can be controlled subject to system design: Display Explanation "All actuators" "OFF" All actuators are off "Base load" "ON" Burner operates at min. output. Internal pump is switched on "Full load"...
Troubleshooting Fault display In the event of a fault, the red fault indicator on the Calling up fault messages from the fault memory control unit flashes. appears on the display and (fault history) "Fault" is shown. The 10 most recent faults (including those remedied) Note and service messages are saved and can be called If a central fault message facility is connected, this is...
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Control mode Maintenance Service required "0F" is only displayed in the fault history Note After servicing, set code "24:0". Regulates without flow tem- Short circuit, system flow Check low loss header sensor (see perature sensor (low loss temperature sensor page 104)
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Mixer being closed Incorrect assignment of Check and adjust rotary selector extension for mixer, heat- S1 (see page 109) ing circuit 3 No DHW heating Short circuit, cylinder tem- Check sensors (see page 104) perature sensor No DHW heating...
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state No ignition spark Check connecting cables and leads from ignition module and ig- nition electrode (see page 43). Check for a voltage of 230 V~ at plug 54 on the ignition module dur- ing the ignition phase.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Gas supply insufficient Test static gas pressure and gas during calibration flow pressure. Check that on-site gas line and gas flow switch are correctly sized. Visually inspect gas train inlet and strainer on the inlet side for con- tamination.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner blocked Boiler coding card fault Plug in boiler coding card or re- place if faulty Burner in a fault state Lead break, flue gas tem- Check flue gas temperature sensor perature sensor and connecting lead.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Control mode Input DE1 at EA1 exten- Remove fault at appliance con- sion reports a fault cerned Control mode Input DE2 at EA1 exten- Remove fault at appliance con- sion reports a fault cerned Control mode...
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner blocked 24 V power supply fault Replace control unit. Burner blocked or in a fault Flame amplifier fault Press reset button R. state Replace control unit if fault is per- manent.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Repeated flame loss dur- Check the ionisation electrode and ing calibration connecting lead (see page 43). Check plug-in connections for loose contacts. Check flue system; remove flue gas recirculation if required.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Ionisation current too low Check ionisation electrode and during calibration. Differ- connecting cable. Check plug-in ence compared to previ- connections for loose contacts. ous value not plausible.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Process fault: shutdown Check system for condensate ■ during calibration. backup. Note To prevent water damage, de- tach fan unit before removing the burner.
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Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Flame is lost immediately Check gas supply (gas pressure after it has built (during and gas flow switch). safety time). Check balanced flue system for flue gas recirculation.
Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Gas train faulty, modula- Check connecting cables to the tion valve control faulty or gas train for damage. flue gas path blocked Check gas train. Check flue system for blockages or constrictions.
Troubleshooting Maintenance (cont.) Fig. 52 Draining the boiler on the heating water side Fig. 53 1. Close the shut-off valves on the heating water side. 3. Open drain valve and drain the boiler as much as required. 2. Route hose at drain valve into a suitable con- tainer or drain outlet.
Troubleshooting Maintenance (cont.) Checking the outside temperature sensor Fig. 54 1. Pull plug "X3" from the control unit. 2. Test the resistance of the outside temperature sen- sor across terminals "X3.1" and "X3.2" on the dis- connected plug and compare it with the curve. 3.
Troubleshooting Maintenance (cont.) Checking the boiler water temperature sensor, cylinder temperature sensor or flow temperature sensor of low loss header Fig. 56 ■ Boiler water temperature sensor Disconnect leads from boiler water temperature sensor and check resistance. Cylinder temperature sensor ■...
Troubleshooting Maintenance (cont.) Checking the outlet temperature sensor Fig. 58 1. Pull leads from outlet temperature sensor 2. Check sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. Danger The outlet temperature sensor is directly immersed in the DHW (risk of scalding).
Troubleshooting Maintenance (cont.) Checking the plate heat exchanger Fig. 60 1. Shut off and drain the boiler on the heating water 5. Check the connections on the heating water and and DHW sides. DHW side for contamination and scaling; if required, replace the plate heat exchanger.
Troubleshooting Maintenance (cont.) Fig. 61 1. Disconnect leads from flue gas temperature sensor 2. Check sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. 10 30 50 70 90 110 Temperature in °C Fig.
Troubleshooting Maintenance (cont.) 1. Disconnect the leads from temperature limiter 2. Check continuity of the temperature limiter with a multimeter. 3. Remove faulty temperature limiter. 4. Coat the new temperature limiter with heat con- ducting paste and install it. 5. After commissioning, press reset button R on the control unit.
Troubleshooting Maintenance (cont.) Mixer extension kit Checking the setting of rotary selector S1 Note The mixer motor can also be started via the actuator The rotary selector on the PCB of the extension kit test (see chapter "Checking outputs"). defines the assignment to the relevant heating circuit. Observe the rotational direction of the mixer motor dur- ing its self-test.
Troubleshooting Maintenance (cont.) Checking the Vitotronic 200-H (accessories) The Vitotronic 200-H is connected to the control unit via the LON cable. To test the connection, carry out a subscriber check at the boiler control unit (see page 54).
Parts lists Overview of assemblies Ordering parts The following information is required: ■ Serial no. (see type plate ■ Assembly (from the parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig. 67 Type plate Hydraulic assembly with hydraulic block Casing assembly...
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Parts lists Hydraulics (cont.) Pos. Part 0001 Hydraulic block 0002 Plug, oil preheater 0003 Thermal circuit breaker 0004 Temperature sensor 0005 Air vent valve G3/8 0006 Set of pipe clips (2 pce) 0007 O-ring set 17.86 x 2.62 (5 pce) 0008 Gasket set A 17 x 24 x 2 (5 pce) 0009...
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Parts lists Hydraulics (cont.) Pos. Part 0046 Casing CIL2 PPs 0047 Safety valve 3 bar 0048 Fascia = 5.0 0049 Connection pipe, heating flow WZ (heat generator) 0050 Gasket set A 23 x 30 x 2 (5 pce) 0051 Wire fuse (5 pce) 0052 Circulation pump UPM3 15-75 KM...
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Parts lists Hydraulic block (cont.) Pos. Part 0001 Temperature sensor 0002 O-ring set 17.86 x 2.62 (5 pce) 0003 O-ring set 9.6 x 2.4 (5 pce) 0004 Gasket set A 17 x 24 x 2 (5 pce) 0005 Profile gasket (4 pce) 0006 Overflow valve HDS 20-230 0007...
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Parts lists Control unit (cont.) Pos. Part 0001 Control unit VBC138-A60.0xx 0002 Casing back panel 0004 Fuse, 6.3 A (slow), 250 V (10 pce) 0005 Fuse holder, 6.3 A (slow) 0006 Vitotronic 100 HC1B 0007 Vitotronic 200 HO2B 0008 LON HO1 communication module 0009 PCB adaptor 0010...
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Parts lists Miscellaneous (cont.) 0001 Touch-up spray paint, white 0002 Touch-up paint stick, white 0003 Special grease 0004 Operating instructions for constant temperature mode 0005 Operating instructions for weather-compensated mode 0006 Operating instructions for weather-compensated operation with touchscreen 0007 Installation and service instructions with HC1B 0008 Installation and service instructions with HO1B 0009...
Parts lists Ordering individual parts for accessories Please affix accessory labels with part numbers here. Please state the relevant part no. when ordering indi- vidual parts.
Function description Control unit Heating mode The control unit determines a set boiler water tempera- The electronic temperature limiter inside the burner ture subject to outside temperature or room tempera- control unit limits the boiler water temperature. ture (if a room temperature-dependent remote control is connected) and to the slope level of the heating curve.
Function description Internal extensions Internal extensions (accessories) Internal H1 extension Fig. 76 The internal extension is integrated into the control unit ■ Heating circuit pump for heating circuit without mixer enclosure. The following alternative functions can be (parameter "53:2") connected to relay output .
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Function description Internal extensions (cont.) Internal H2 extension Fig. 77 The internal extension is integrated into the control unit ■ Heating circuit pump for heating circuit without mixer enclosure. The following alternative functions can be (parameter "53:2") connected to relay output .
Function description External extensions (accessories) AM1 extension Fig. 78 Circulation pump A Power supply for additional accessories fÖ Circulation pump KM BUS Power supply fÖ Functions Select the output functions via parameters at the boiler control unit. One of the following circulation pumps can be connec- ted to each of the connections A1 and A2: Heating circuit pump for heating circuit without mixer ■...
Function description External extensions (accessories) (cont.) EA1 extension Fig. 79 Fuse Power supply fÖ Digital input 1 Power supply for additional accessories fÖ Digital input 2 Central fault message/feed pump/DHW circula- Digital input 3 tion pump (potential-free) 10V 0 10 V input KM-BUS –...
Function description External extensions (accessories) (cont.) The duration of the changeover is set via parameter F2 1 V is taken as "no specification for set boiler – in the "Heating circuit" group. water temperature". ≙ Set value 10 °C ≙ Effect of external blocking function on the pumps 10 V Set value 100 °C...
Function description Control functions (cont.) You can select the direction of the operating program The duration of the operating program changeover is changeover in parameter d5 in the "Heating circuit" set in parameter F2 in the "Heating circuit" group: group: Operating program changeover Parameter Operating program changeover...
Function description Control functions (cont.) If the system is to be filled independently of the com- When the function is enabled, the burner shuts down. missioning assistant, the diverter valve can be moved The program automatically becomes inactive after to the central position via the filling function (see "Fill- 20 min.
Function description Control functions (cont.) Temperature profile 4: Parameter F1:4 Days Fig. 83 Temperature profile 5: Parameter F1:5 Days Fig. 84 Temperature profile 6: Parameter F1:6 Days Fig. 85 Ends after 21 days Individual temperature profile for screed drying An individual temperature profile can be set for screed drying.
Function description Control functions (cont.) Example using the settings in the delivered condition Outside temperature in °C Fig. 86 Heating curve for operation with standard room temperature Heating curve for operation with reduced room temperature Reducing the heat-up time During the transition from operation with reduced room The value and duration for the additional raising of the temperature to operation with standard room tempera- set boiler water temperature or set flow temperature...
Function description Control functions (cont.) Example using the settings in the delivered condition Time Fig. 87 Start of operation with standard room temperature Set boiler water or flow temperature in accordance with the selected heating curve Set boiler water temperature or set flow tempera- ture in accordance with parameter FA: 50 °C + 20 % = 60 °C Duration of operation with higher set boiler water...
Function description Vitocom 100, type GSM: Entering PIN code via Vitotronic If a Vitocom 100, type GSM (accessories) has been 3. Enter "viservice" password. connected to the heat source, enter the PIN code on the Vitotronic control unit. 4. "Service functions". After entry, you may have to wait 10 to 15 s.
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Function description Electronic combustion control unit (cont.) To achieve an optimum combustion control, the system regularly carries out an automatic self-calibration; also after a power failure (shutdown). For this, the combus- tion is briefly regulated to max. ionisation current (cor- responding to air ratio =1).
Connection and wiring diagram Connection and wiring diagram internal connections – Fig. 88 Main PCB Stepper motor for diverter valve dÖ X... Electrical interfaces Temperature limiter Boiler water temperature sensor § Ignition unit Outlet temperature sensor Fan motor a-Ö Ionisation electrode A Fan motor control a-Ö...
Connection and wiring diagram Connection and wiring diagram external connections – Fig. 89 Main PCB Cylinder temperature sensor (plug on cable har- Switching mode power supply ness) Optolink Internal circulation pump sÖ Burner control unit Cylinder loading pump Programming unit DHW circulation pump (connect DHW circula- Coding card tion pumps with standalone functions directly to...
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Connection and wiring diagram Connection and wiring diagram external… – (cont.) KM-BUS CO limiter...
Commissioning/service reports Commissioning/service reports Settings and test values Set value Commissioning Maintenance/ service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pressure) for natural gas E mbar 17-25 1.70-2.5 for natural gas LL mbar 17-25 1.70-2.5 for LPG mbar 42.5-57.5...
Specification Specification Rated heating output range at T 50/30 °C 1.9 - 13 1.9 - 19 2.6 - 26 1.8 (3.5) - 35 at T 80/60 °C 1.7 - 12.1 1.7 - 17.6 2.4 - 24.1 1.6 (3.2) - 32.5 for DHW heating 1.7 - 17.2 1.7 - 17.2...
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Final decommissioning and disposal Viessmann products can be recycled. Components and substances from the system are not part of ordi- nary household waste. For decommissioning the system, isolate the system from the power supply and allow components to cool down where appropriate.
Certificates Declaration of conformity Vitodens 222-F, type B2TB We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, declare as sole responsible body that the named product complies with the provisions of the following directives and regulations: 92/42/EEC Efficiency Directive 2009/125/EU...
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, type B2TB, complies with the NO limits specified by the 1st BImSchV Paragraph 6 [Germany]. Allendorf, 1 May 2016 Viessmann Werke GmbH &...
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Keyword index Keyword index Anode, checking............47 Gas supply pressure..........37 Anode, replacing............47 Gas train ..............37 Assembly..............111 Gas type..............35 Gas type conversion..........36 Boiler, draining on the DHW side....... 46 Boiler water temperature sensor......104 Heating circuit assignment........141 Boosting DHW heating..........131 Heating curve.............
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Keyword index Keyword index (cont.) Report..............147 System, filling............. 30 Rotational direction, mixer motor System pressure............30 – Changing...............109 System schemes............51 – Checking............... 109 Temperature limiter..........107 Safety chain............. 107 Tightness test, balanced flue system......40 Screed drying............138 Screed drying function..........138 Service, calling up............
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