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 B2TB, 1.8 to 35.0 kW
Gas condensing storage combi boiler
Natural gas and LPG version
VITODENS 222-F
Please keep safe.
5778705 GB
3/2019

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  • Page 1 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 VITODENS 222-F Please keep safe. 5778705 GB 3/2019...
  • Page 2 Never touch hot surfaces on the boiler, burner, lidate our warranty. ■ flue system or pipework. For replacements, use only original spare parts supplied or approved by Viessmann. Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing work, touch earthed objects such as heating or water pipes to dis- charge static loads.
  • Page 3 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Flue systems and combustion air Danger Ensure that flue systems are clear and cannot be Escaping gas can lead to explosions which may sealed, for instance due to accumulation of conden- result in serious injury.

  • Page 4: Table Of Contents

    Disposal of packaging ................System examples .................. Symbols ....................Intended use ..................Product information ................Vitodens 222-F, type B2TB ..............■ Spare parts lists ..................2. Preparing for installation Preparing for boiler installation .............. Safety assembly to DIN 1988 and EN 806 on the cold water connec- ■...
  • Page 5 Index Index (cont.) Maintenance ..................94 Putting the control unit into the service position ......... 94 ■ Draining the boiler on the heating water side ........95 ■ Checking the outside temperature sensor .......... 96 ■ Checking the boiler water temperature sensor, cylinder temperature ■...
  • Page 6 Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. System examples Available system examples: See www.viessmann- schemes.com. Symbols Symbol Meaning Reference to other document containing further information Step in a diagram: The numbers correspond to the order in which the steps are carried out.
  • Page 7 Modulating MatriX cylinder burner for natural gas tion and maintenance". ■ and LPG The Vitodens 222-F may only be delivered to countries ■ Hydraulics with 3-way diverter valve and variable listed on the type plate. For deliveries to other coun-...

  • Page 8: Preparing For Boiler Installation

    Preparing for installation Preparing for boiler installation Use a connection set or connection kit, available as an Note accessory, to make the connection on the gas and Fit safety equipment in accordance with the national water sides. regulations. Fitting accessories Please note Fit all accessories that need to be installed from the Avoid damaging the appliance.
  • Page 9 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 10).

  • Page 10: Safety Assembly To Din 1988 And En 806 On The Cold Water Connection

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

  • Page 11: Removing The Front Panels

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

  • Page 12: Siting And Levelling The Boiler

    Installing the boiler Siting and levelling the boiler Note Position the appliance and accessories so that they are flush with the wall. SW17 Fig. 6...

  • Page 13: Connections On The Heating Water And Dhw Side

    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...

  • Page 14: Flue Gas Connection

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

  • Page 15: Gas Connection

    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 35.

  • Page 16: Opening The Control Unit Enclosure

    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.

  • Page 17: Routing The Power Cable

    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)

  • Page 18: Outside Temperature Sensor

    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 ■...

  • Page 19: Connecting The Vitoconnect 100, Type Opto1 Cable (Accessories)

    Installing the boiler Electrical connections (cont.) Connecting the Vitoconnect 100, type OPTO1 cable (accessories) Installing the Vitoconnect 100 Vitoconnect 100 installation and commissioning instructions Fig. 13 External demand via switching contact Connection options: Please note ■ EA1 extension (accessory, see separate installation Live contacts lead to short circuits or phase fail- instructions) ure.

  • Page 20: External Demand Via 0

    Installing the boiler Electrical connections (cont.) Plug EA1 extension Floating contact Floating contact (when connecting, remove jumper EA1 extension – if installed – between L and 1) Parameter settings Parameter settings "4b:1" in the "General" group Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) in the ■...

  • Page 21: Power Supply For Accessories At Plug Lh (230 V ~)

    Installing the boiler Electrical connections (cont.) Plug EA1 extension Floating contact Floating contact (when connecting, remove jumper EA1 extension – if installed – between L and 1) Parameter settings Parameter settings "4b:2" in the "General" group Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) in the ■...

  • Page 22: Power Supply Fö

    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...

  • Page 23: Routing Connecting Cables

    Installing the boiler Electrical connections (cont.) If the power supply to the appliance is connected Danger ■ with a flexible cable, ensure that the live conductors The absence of component earthing can lead to are pulled taut before the earth conductor in the serious injury from electric current if an electrical event of strain relief failure.

  • Page 24: Closing The Control Unit Enclosure

    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...

  • Page 25: Fitting The Front Panels

    Installing the boiler Fitting the front panels Fig. 19...

  • Page 26: Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Removing the front panels....................28 • 2. Filling the heating system....................28 • 3. Filling the DHW cylinder on the DHW side..............29 •...
  • Page 27 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • 40. Scanning and resetting the "Service" display..............52 • • • 41. Fitting the front panels...................... 53 • 42. Instructing the system user....................53...

  • Page 28: Removing The Front Panels

    Commissioning, inspection, maintenance Removing the front panels See page 11 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 ≤...

  • Page 29: Filling The Dhw Cylinder On The Dhw Side

    Commissioning, inspection, maintenance Filling the heating system (cont.) 5. If the control unit was already on before filling: 6. Close boiler drain & fill valve switch the control unit ON and activate the filling function (see next chapter). Then switch the control unit OFF again.

  • Page 30: Venting 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.

  • Page 31: Venting The Heating System

    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.

  • Page 32: Commissioning The System

    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.
  • Page 33 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.
  • Page 34 Commissioning, inspection, maintenance Commissioning the system (cont.) 5. Accept the device list with "Next". Illustration of system components (if available) A system scheme according to the detected com- ponents appears on the display. 6. Confirm the system scheme with "Next". Add or remove system components with "Change".

  • Page 35: Designating Heating Circuits - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Designating heating circuits – only for weather-compensated control units In the delivered condition, the heating circuits are des- To enter names for heating circuits: ignated "Heating circuit 1", "Heating circuit 2", Operating instructions "Heating circuit ..." (if installed). If the system user prefers, the heating circuits can be renamed to suit the specific system.
  • Page 36 Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) 05. Check the static pressure and record the actual value in the report on page 119. Set value: max. 57.5 mbar (5.75 kPa). 06. Start the boiler. Note During commissioning, the boiler can enter a fault state (fault EE is displayed) because of air in the gas line.

  • Page 37: Function Sequence And Possible Faults

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

  • Page 38: Setting The Heating Output

    Commissioning, inspection, maintenance Setting the 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.

  • Page 39: Tightness Test On Balanced Flue System (Annular Gap Check)

    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 generator, 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.

  • Page 40: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Removing the burner (cont.) 3. Remove cables from fan motor 5. Undo four screws , gas train and remove the burner. ignition and ionisation electrode , ignition unit and earth tab Please note Prevent damage to the burner. 4.

  • Page 41: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Checking and adjusting the ignition and ionisation electrodes ±0.5 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.
  • Page 42 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.

  • Page 43: Installing The Burner

    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 ■...

  • Page 44: Draining The Boiler On The Dhw Side

    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 ■...

  • Page 45: Cleaning The Loading Cylinder

    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 2 years after commissioning, and as required thereafter. Fig. 37 1. Drain the loading cylinder. 5.

  • Page 46: Re-Assembling And Filling The Loading Cylinder

    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.

  • Page 47: Checking The Pre-Charge Pressure And The Dhw Expansion Vessel (If Installed)

    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).

  • Page 48: Checking All Gas Equipment For Tightness At Operating Pressure

    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 gas equipment (including inside the appli- (EN 14291) and devices for the tightness test. Leak ance) for leaks.

  • Page 49: Checking The Flue System For Unrestricted Flow And Tightness

    Commissioning, inspection, maintenance Checking the combustion quality (cont.) 3. Enter "viservice" password. 7. Ending output selection: ä 4. "Actuator test" 8. End service functions. 5. Set the lower heating output: "Base load" "ON". Burner runs at lower heating output. 6. Set the upper heating output: "Full load"...
  • Page 50 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.

  • Page 51: Connecting The Control Unit To Wlan

    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 +/ –...
  • Page 52 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- —...
  • Page 53 Commissioning, inspection, maintenance Scanning 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.

  • Page 54: Calling Up Parameter Level 1

    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 –...
  • Page 55 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.

  • Page 56: Boiler

    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 ...

  • Page 57: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3

    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"...
  • Page 58 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.
  • Page 59 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 >...
  • Page 60 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"...
  • Page 61 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...

  • Page 62: Calling Up Parameter Level 2

    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" –...
  • Page 63 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.
  • Page 64 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...
  • Page 65 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...
  • Page 66 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...
  • Page 67 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"...
  • Page 68 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"...

  • Page 69: Boiler

    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...
  • Page 70 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"...
  • Page 71 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"...

  • Page 72: Dhw

    Parameter level 2 Boiler (cont.) "CO limiter" Setting Explanations Learning mode 49:0 No CO limiter installed. Must be set if the CO limiter is to be connected and automatically activated. Sensor monitoring and fault messaging en- 49:1 CO limiter with sensor monitoring and fault message abled active.
  • Page 73 Parameter level 2 (cont.) "Loading pump connection" Setting Explanations Output 28, main PCB 5A:0 Never adjust Internal H1 extension 5A:1 Never adjust "DHW cylinder hydraulic connection" Setting Explanations Directly at boiler or upstream of low loss 5B:0 header Downstream of low loss header 5B:1 "Function of circulation pump for cylinder heating at "External blocking"...

  • Page 74: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3

    Parameter level 2 (cont.) "Limit, max. heating output for DHW heating" Setting Explanations ... % 6F:... Max. heating output for DHW heating in %; defaulted by the boiler coding card ... % 6F:0 to Max. heating output for DHW heating adjustable from 6F:100 min.
  • Page 75 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Temperature limits, frost protection function" Setting Explanations 2 see service instructions A3:2 Outside temperature below 1 °C: Heating circuit pump "ON" Outside temperature above 3 °C: Heating circuit pump "OFF"...
  • Page 76 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter With economy function outside tem- A5:... perature: Heating circuit pump "OFF" + 5 K > + 4 K > + 3 K > + 2 K > + 1 K >...
  • Page 77 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Room temperature hook-up" Setting Explanations Without B0:0 With remote control: heating mode/reduced mode: weather-compensated Change value only for the heating circuit with mixer. For reduced mode B0:1 Heating mode: weather-compensated Reduced mode: with room temperature hook-up For standard mode B0:2...
  • Page 78 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Maximum flow temperature limit, heating circuit" Setting Explanations 74 °C C6:74 Electronic maximum flow temperature limit 74 °C ... °C C6:10 to Maximum limit adjustable from 10 to 127 °C (limited C6:127 by boiler-specific parameters) "Slope"...
  • Page 79 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Setting range, set day temperature" Setting Explanations 3 .. 23 °C E1:0 10 .. 30 °C E1:1 Never adjust 17 .. 37 °C E1:2 "Display correction of the actual room temperature" Setting Explanations None...
  • Page 80 Parameter level 2 Heating circuit 1, heating circuit 2, heating… (cont.) "Screed drying" Setting Explanations Screed drying disabled F1:0 Screed drying adjustable, with choice of 6 tempera- ture/time profiles (see chapter "Function description") Diagram 1 F1:1 Diagram 2 F1:2 Diagram 3 F1:3 Diagram 4 F1:4...
  • Page 81 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 ...

  • Page 82: Calling Up The Service Menu

    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.

  • Page 83: Resetting All Passwords To Their Delivered Condition

    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"...

  • Page 84: Brief Scan

    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.

  • Page 85: Checking Outputs (Actuator Test)

    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-...
  • Page 86 Diagnosis and service scans Checking outputs (actuator test) (cont.) Display Explanation "Valve" "Heating" Diverter valve set to heating mode "Valve" "Middle" Diverter valve in central position (filling/draining) "Valve" "WW" Diverter valve set to DHW heating "Heating circuit pump "ON" Heating circuit pump output active (extension to heating circuit with HC2"...

  • Page 87: Fault Display

    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...
  • Page 88 Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Control mode Service 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 97)
  • Page 89 Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Mixer is being closed. Incorrect assignment of Check and adjust rotary selector extension for mixer, heat- S1 (see page 101) ing circuit 3 No DHW heating Short circuit, cylinder tem- Check sensors (see page 97) perature sensor No DHW heating...
  • Page 90 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 blocked Lead break, flue gas tem- Check flue gas temperature sen- perature sensor sor.
  • Page 91 Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Control mode Input DE1 at EA1 exten- Remedy fault at affected appliance. sion reports a fault. Control mode Input DE2 at EA1 exten- Remedy fault at affected appliance. sion reports a fault.
  • Page 92 Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Repeated flame loss or 1. Check system for excessive deactivation during cali- temperature. If fault F1 is bration present, ensure there is ade- quate heat transfer.
  • Page 93 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 flame formation (dur- and gas flow switch). ing safety time) Check balanced flue system for flue gas recirculation.

  • Page 94: Maintenance

    Troubleshooting Fault codes (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state and ad- Boiler coding card miss- Insert the boiler coding card. ditional fault B7 is displayed. ing. Press reset button R. Replace control unit if fault per- sists.

  • Page 95: Draining The Boiler On The Heating Water Side

    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.

  • Page 96: Checking The Outside Temperature Sensor

    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.

  • Page 97: Checking The Boiler Water Temperature Sensor, Cylinder Temperature Sensor Or Flow Temperature Sensor Of Low Loss Header

    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 ■...

  • Page 98: Checking The Outlet 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).

  • Page 99: Checking The Plate Heat Exchanger

    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.

  • Page 100: Checking The Temperature Limiter

    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.

  • Page 101: Checking The Fuse

    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.

  • Page 102: Checking The Vitotronic 200-H (Accessories)

    Troubleshooting Maintenance (cont.) Checking the rotational direction of the mixer Observe the rotational direction of the mixer motor dur- motor ing its self-test. Then manually set the mixer back to "Open". After being switched on, the boiler implements a self- The flow temperature sensor must now capture a test.

  • Page 103: Function Description Control Unit

    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.

  • Page 104: Internal Extensions

    Function description Internal extensions Internal extensions (accessories) Internal H1 extension Fig. 67 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 .
  • Page 105 Function description Internal extensions (cont.) Internal H2 extension Fig. 68 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 .

  • Page 106: External Extensions (Accessories)

    Function description External extensions (accessories) AM1 extension Fig. 69 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 ■...

  • Page 107: Ea1 Extension

    Function description External extensions (accessories) (cont.) EA1 extension Fig. 70 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 –...

  • Page 108: Control Functions

    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...

  • Page 109: External Blocking

    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...

  • Page 110: Screed Drying

    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.

  • Page 111: Raising The Reduced Room Temperature

    Function description Control functions (cont.) Temperature profile 4: Parameter F1:4 Days Fig. 74 Temperature profile 5: Parameter F1:5 Days Fig. 75 Temperature profile 6: Parameter F1:6 Days Fig. 76 Ends after 21 days Individual temperature profile for screed drying An individual temperature profile can be set for screed drying.

  • Page 112: Reducing The Heat-Up Time

    Function description Control functions (cont.) Example using the settings in the delivered condition Outside temperature in °C Fig. 77 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...

  • Page 113: Assigning Heating Circuits To The Remote Control

    Function description Control functions (cont.) Example using the settings in the delivered condition Time Fig. 78 Start of operation with standard room temperature Set boiler water temperature or set flow tempera- Set boiler water or flow temperature in accordance ture in accordance with parameter FA: with the selected heating curve 50 °C + 20 % = 60 °C Duration of operation with higher set boiler water...

  • Page 114: Vitocom 100, Type Gsm: Entering Pin Code Via Vitotronic

    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.
  • Page 115 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).

  • Page 116: Connection And Wiring Dia-Connection And Wiring Diagram - Internal Connections

    Connection and wiring diagram Connection and wiring diagram internal connections – Fig. 79 Main PCB Stepper motor for diverter valve dÖ X... Electrical interfaces Temperature limiter Boiler water temperature sensor § Ignition unit Outlet temperature sensor Fan motor a-Ö Ionisation electrode A Fan motor control a-Ö...

  • Page 117: Gram Connection And Wiring Diagram - External Connections

    Connection and wiring diagram Connection and wiring diagram external connections – Fig. 80 Main PCB Cylinder temperature sensor (plug on cable har- Switching mode power supply ness) Optolink Internal circulation pump sÖ Burner control unit Cylinder primary pump Programming unit DHW circulation pump (connect DHW circula- Coding card tion pumps with standalone functions directly to...
  • Page 118 Connection and wiring diagram Connection and wiring diagram external… – (cont.) KM-BUS CO limiter...

  • Page 119: Commissioning/Service

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

  • Page 120: Specification

    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...
  • Page 121 Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning the system, isolate the system and substances from the system are not part of ordi- from the power supply and allow components to cool nary household waste. down where appropriate.

  • Page 122: Certificates Declaration Of Conformity

    Certificates Declaration of Conformity We, Viessmann Werke GmbH & Co. KG, D-35107 Using the serial number, the full Declaration of Con- Allendorf, declare as sole responsible body that the formity can be found on the following website: named product complies with the European directives and supplementary national requirements in terms of www.viessmann.co.uk/eu-conformity...

  • Page 123: Keyword Index

    Keyword index Keyword index Anode, checking............45 Gas supply pressure..........36 Anode, replacing............45 Gas train ..............36 Gas type..............35 Gas type conversion..........35 Boiler, draining on the DHW side....... 44 Boiler water temperature sensor........ 97 Boosting DHW heating..........103 Heating circuit assignment........113 Brief scans..............
  • Page 124 Wiring diagram............116 Supply pressure............35 Symbols............... 6 System, filling............28, 29 System pressure..........28, 29 System schemes............49 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com...

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