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Viessmann VITODENS 111-W Installation And Service Instructions Manual

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VIESMANN
Installation and service instructions
for contractors
Vitodens 111-W
Type B1LF, 3.2 to 32 kW
Type B1LF-M (for multiple connection), 5.7 to 32 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
Gas Council No.: 47-819-53, 47-819-54
VITODENS 111-W
Please keep safe.
6167585 GB
3/2023

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Summary of Contents for Viessmann VITODENS 111-W

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 111-W Type B1LF, 3.2 to 32 kW Type B1LF-M (for multiple connection), 5.7 to 32 kW Wall mounted gas condensing boiler Natural gas and LPG version Gas Council No.: 47-819-53, 47-819-54 VITODENS 111-W Please keep safe.
  • Page 2 Safety instructions Safety instructions Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen- tal pollution.
  • Page 3 Viessmann. water pipes to discharge static loads. Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
  • Page 4 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Condensate Danger Danger Escaping gas can lead to explo- Contact with condensate can be sions which may result in serious harmful to health. injury. Never let condensate touch your Do not smoke.
  • Page 5 Safety instructions Safety instructions (cont.) Danger The simultaneous operation of the boiler and appliances that exhausts air to the outside can result in life threatening poisoning due to a reverse flow of flue gas. Fit an interlock circuit or take suita- ble steps to ensure an adequate supply of combustion air.

  • Page 6: Table Of Contents

    1. Information Disposal of packaging ................Gas Council No..................Symbols ....................Intended use ..................Product information ................Vitodens 111-W, type B1LF ..............■ System examples .................. Maintenance parts and spare parts ............Viessmann Partnershop ..............10 ■ Viessmann spare part app ..............10 ■...
  • Page 7 Index Index (cont.) Draining the boiler on the heating water side ........92 ■ Draining the boiler on the DHW side ..........93 ■ Removing the boiler from the pre-plumbing jig or mounting frame ..94 ■ Status/checking/diagnosing the internal circulation pump ....94 ■...

  • Page 8: Information Disposal Of Packaging

    Please dispose of packaging waste in line with statu- tory regulations. Gas Council No. Type Gas Council Number: Vitodens 111-W, B1LF, 25 kW storage combi 47-819-53 Vitodens 111-W, B1LF, 32 kW storage combi 47-819-54 Symbols The steps in connection with commissioning, inspec-...

  • Page 9: Intended Use

    ■ Weather-compensated or constant temperature con- The Vitodens 111-W may only be delivered to coun- trol unit tries listed on the type plate. For deliveries to other Integral diaphragm expansion vessel (10 l capacity) countries, approved contractors must arrange individ- ■...

  • Page 10: Viessmann Partnershop

    Information Maintenance parts and spare parts (cont.) Viessmann Partnershop Login: https://shop.viessmann.com/ Viessmann spare part app www.viessmann.com/etapp...

  • Page 11: Preparing For Installation

    Preparing for installation Preparing for installation 507.5 149.5 Ø 96 -0.5 Ø 60.5 +0.8 494.5 38.5 EF G H 128.5 Fig. 1 Heating flow Gas connection Heating return Safety valve Filling/draining Cold water Condensate drain Note The boiler (IP rating IP X1) is approved for installation in wet rooms in safety zone 3.
  • Page 12 Preparing for installation Preparing for installation (cont.) Installation 1. Subject to order: Fit supplied pre-plumbing jig, 3. Prepare the gas connection according to TRGI or mounting frame or wall mounting bracket in the rel- TRF [or local regulations]. evant installation location. 4.

  • Page 13: Installation Sequence Removing The Boiler From The Packaging

    Installation sequence Removing the boiler from the packaging Fig. 3 Mounting the boiler and making connections Mounting the boiler on the pre-plumbing jig or mounting frame Note Various installation components can be found in a sep- arate pack on the front panel. Keep the installation components safe, as they will be required for later installation.
  • Page 14 Installation sequence Mounting the boiler and making connections (cont.) Fig. 4 Note 1. Replace gaskets. The diagram shows installation on a pre-plumbing jig. Internal gasket diameter: The boiler can be installed on the following accesso- ■ Gas connection Ø 18.5 mm ries: Connections on the heating water side ■...
  • Page 15 Installation sequence Mounting the boiler and making connections (cont.) 3. Note 4. Tighten union nuts so that they form a tight seal. Only remove the locking clip under the gas pipe Tighten the union nuts as tightly as necessary and union nut once the appliance has been installed.

  • Page 16: Fitting The Boiler To The Wall Mounting Bracket

    Installation sequence Mounting the boiler and making connections (cont.) Fitting the boiler to the wall mounting bracket Note Various installation components can be found in a sep- arate pack. Keep the installation components safe, as they will be required for later installation. Fig.
  • Page 17 Installation sequence Mounting the boiler and making connections (cont.) 1. Replace gaskets. Fit valves and gas shut-off valve. 4. Tighten union nuts so that they form a tight seal. Tighten the union nuts as tightly as necessary and Internal gasket diameter: ensure that the components are undamaged and ■...

  • Page 18: Removing The Front Panel

    Installation sequence Mounting the boiler and making connections (cont.) Removing the front panel Fig. 6 Type plate Note The QR code contains the credentials for the registra- The type plate is attached to cover panel in the tion and product information portal, and the 16-digit appliance: See page 42.

  • Page 19: Connecting On The Heating Water And Dhw Sides

    Installation sequence Mounting the boiler and making connections (cont.) 1. Take the additional type plate from the supplied 2. In consultation with the system user, affix the addi- documentation. tional type plate to the outside of the appliance. The additional type plate must be visible to the flue Note gas inspector.

  • Page 20: Filling The Trap With Water

    Connecting the balanced flue pipe The labels "System certificate" and "Skoberne GmbH Flue system installation instructions or Groppalli flue system" enclosed with the technical documentation may only be used in conjunction with the Viessmann flue system made by Skoberne or Groppalli.
  • Page 21 Installation sequence Connecting the balanced flue pipe (cont.) Connecting several Vitodens to a shared flue sys- Installation instructions for back draught safety device If several Vitodens are connected to a shared flue sys- Only carry out commissioning when the following tem at positive pressure using routing type C conditions have been met: Unrestricted flow along the flue gas routes...

  • Page 22: Connecting The Gas Line

    Installation sequence Connecting the gas line Fig. 10 1. If the gas connection has not been fitted previ- 3. Purge the gas line. ously, seal gas shut-off valve to the gas con- nection. When carrying out any work on gas connection fit- tings, counterhold with a suitable tool.

  • Page 23: Gas Installation To Bs 6891:2005

    Installation sequence Connecting the gas line (cont.) Gas installation to BS 6891:2005 It is the gas installer’s responsibility to size the gas The external gas tap may reduce operating pressure installation lines in accordance with BS 6891:2005. further if measured at its test point. The pressure drop If it is determined that the operating pressure falls is relative to the heat input of the boiler (kW).

  • Page 24: Layout Of The Electrical Connections

    Installation sequence Electrical connections (cont.) Fig. 11 Note Do not disconnect the plug from the mounting panel. Do not change the position of the cable or its fixture (fixing point on casing). Layout of the electrical connections Note For further information on the connections, see the fol- lowing chapters.
  • Page 25 Installation sequence Electrical connections (cont.) N 1 L N L L N N L N L N L 10 987654321 654321 654321 654321 35 54 X12 X5 Fig. 12 Connections to 230 V~ plugs Cylinder loading pump Power supply Remote control (OpenTherm device) fÖ...

  • Page 26: On-Site Connections On The Hmbu Heat Management Unit

    Installation sequence Electrical connections (cont.) On-site connections on the HMBU heat management unit Fig. 13 Plug-in connection on underside of appliance Plug for connecting sensors and PlusBus Remove plug from the pack of installation compo- nents. Aperture for cable entry For cables without strain relief bushings, provide strain relief in the wiring chamber in the form of cable ties.
  • Page 27 ■ "2" DHW circulation pump external demand (push- button function, pump runs for 5 min). Not for See commissioning assistant in "Commissioning". Vitodens 111-W "4" External demand ■ "5" External blocking or alternatively connection for ■ external heating circuit hook-up (if no more than one heating circuit hook-up is configured on commission- ing.

  • Page 28: Power Supply Fö

    Installation sequence Electrical connections (cont.) Mains input fÖ PlusBus Note Danger Incorrect wiring can lead to serious injury from PlusBus system length max. 50 m for 0.34 mm cable electrical current and result in appliance dam- cross-section and unshielded cable. age.

  • Page 29: Routing Connecting Cables/Leads

    Installation sequence Electrical connections (cont.) Routing connecting cables/leads Please note If connecting cables/leads come into contact with hot components, they will be damaged. When routing and securing cables/leads on site, ensure that the maximum permissible tempera- tures for these cables/leads are not exceeded. Fig.

  • Page 30: Wireless Signal Range Of Wifi Connection

    Installation sequence WiFi operational reliability and system… (cont.) Wireless signal range of WiFi connection The range of wireless signals may be reduced by Install the heat generator as close as possible to the walls, ceilings and interior fixtures. These weaken the WiFi router to ensure a good WiFi connection.

  • Page 31: Closing The Wiring Chamber And Fitting The Front Panel

    Installation sequence Closing the wiring chamber and fitting the front panel Fig. 19...

  • Page 32: Commissioning, Inspec-Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Commissioning the system with the commissioning assistant........33 • • 2. Filling the heating system....................37 • 3. Filling the loading cylinder on the DHW side..............39 •...

  • Page 33: Commissioning The System With The Commissioning Assistant

    Commissioning, inspection, maintenance Commissioning the system with the commissioning assistant Please note 3. For further steps, see commissioning assistant in Only commission the appliance with a fully filled the following overview. trap. Check that the trap has been filled with water. Commissioning via software tool Commissioning via commissioning assistant Note...
  • Page 34 Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Commissioning assistant Explanations and references sequence Commissioning "C.1" ON = on Filling program OFF = off Note It is possible to interrupt or end the process while a rotating rectangle alternat- ing with the current system pressure is displayed;...
  • Page 35 Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Commissioning assistant Explanations and references sequence "C.8" 1 - 1 direct heating circuit without low loss header System scheme (de- 2 - 1 direct heating circuit with low loss header pending on appliance 3 - 1 direct heating circuit without low loss header with DHW cylinder type, not all schemes...
  • Page 36 Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Commissioning assistant Explanations and references sequence "C.10" 0 - No function EM-EA1 (DIO) function 4 - External set flow temperature 0–10 V 5 - External default output Note 8 - 230 V fault message input and fault message output (without system block- If "C.9"...

  • Page 37: Filling The Heating System

    Commissioning, inspection, maintenance Commissioning the system with the commissioning… (cont.) Switching WiFi on/off The appliance is equipped with an integrated Switch on the WiFi connection. Establish a connection (2.4 GHz) WiFi communication module with extended to the router: type plate. ■...
  • Page 38 Commissioning, inspection, maintenance Filling the heating system (cont.) 4. Fill the heating system at boiler drain & fill valve in the heating return (on the connection set or on site). Minimum system pressure > 1.0 bar (0.1 MPa). Check the system pressure at pressure gauge .

  • Page 39: Filling The Loading Cylinder On The Dhw Side

    Commissioning, inspection, maintenance Filling the loading cylinder on the DHW side Fig. 22 1. Valves must be in the "top" position. 3. Once air stops coming out of the DHW draw-off point, the loading cylinder is completely filled. 2. Open the cold water line and a DHW draw-off point.

  • Page 40: Venting The Heating System

    Commissioning, inspection, maintenance Venting the heating system Fig. 23 1. Check whether the air vent screw in quick-action 3. Activate venting function (see following steps). air vent valve of the heating circuit pump is open. 4. Call up the pressure display with "System over- view".

  • Page 41: Converting The Gas Type For Operation With Lpg

    Commissioning, inspection, maintenance Checking the gas type (cont.) 1. Determine the gas type and Wobbe index by ask- 2. Record the gas type in the service report. ing your local gas supply utility or LPG supplier. Converting the gas type for operation with LPG 1.

  • Page 42: Checking The Static Pressure And Supply Pressure

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure Danger CO formation as a result of incorrect burner adjustment can have serious health implications. Carry out a CO test before and after work on gas appliances. Fig. 25 Cover panel Type plate Gas installation to BS 6891:2005 It is the gas installer’s responsibility to size the gas...

  • Page 43: Function Sequence And Possible Faults

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) 08. Check the supply (flow) pressure. For set values, 11. Open the gas shut-off valve and start the appli- see the following table. ance. Note Danger Use a suitable measuring device with a resolution Gas escaping from the test connector leads of at least 0.1 mbar (0.01 kPa) to check the supply to a risk of explosion.

  • Page 44: Setting The Max. Heating Output

    Commissioning, inspection, maintenance Function sequence and possible faults (cont.) Ionisation current builds Fault 369, 380 Check distance of ionisation electrode on burner gauze assembly. Purge the gas line. Burner in operation Shuts down below the set Check the flue system for boiler water temperature and tightness (flue gas recircula- restarts immediately.

  • Page 45: Adjusting Pump Rate Of Integral Circulation Pump

    Commissioning, inspection, maintenance Adjusting pump rate of integral circulation pump Operation of the integral circulation pump as heating circuit pump for heating circuit 1 The pump speed and consequently the pump rate are controlled subject to the outside temperature and the switching times for heating mode or reduced mode.
  • Page 46 Commissioning, inspection, maintenance Adjusting pump rate of integral circulation pump (cont.) In the delivered condition, the minimum pump rate ■ and the maximum pump rate are set to the following values: Note The minimum speed of 60 % is not undershot, in order to ensure the required flow rate via the internal overflow valve.

  • Page 47: Activating Screed Drying

    Commissioning, inspection, maintenance Adjusting pump rate of integral circulation pump (cont.) Curve Pump rate of circulation pump 60 % 70 % 80 % 90 % 100 % Activating screed drying Screed drying Six different temperature profiles can be set for screed Note drying: Screed drying applies to all connected heating circuits...

  • Page 48: Burner Adjustment When Connecting Multiple Flues To A Shared Flue System

    For suitable Vitodens appliances, see pricelist. 80/125 mm ■ Minimum shaft cross-section Square: 175 x 175 mm – When connecting several Vitodens 111-W to a com- Round: 195 mm – mon flue system: Height between floors min. 2.5 m ■...

  • Page 49: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Removing the burner (cont.) 4. Undo gas supply pipe fitting 5. Undo 4 screws and remove the burner. Note Cover gas connection so that no small parts can fall into it. Checking the burner gasket and burner gauze assembly Fig.

  • Page 50: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Checking the burner gasket and burner gauze… (cont.) 7. Align the hole in burner gauze assembly 8. Check thermal insulation ring with for firm seating. burner door pin 9. Fit electrodes . Check clearances, see following Please note chapter.

  • Page 51: Cleaning The Heating Surfaces

    Commissioning, inspection, maintenance Checking the back draught safety devices (cont.) Back draught safety device in the mixing shaft of Back draught safety device in the flue gas connec- the burner tion Fig. 33 1. Remove the balanced flue system. Note If the balanced flue system cannot be removed, clean and check the back draught safety device via the inspection cover.

  • Page 52: Checking The Condensate Drain And Cleaning The Trap

    Commissioning, inspection, maintenance Cleaning the heating surfaces (cont.) Note 1. Use a vacuum cleaner to remove combustion resi- Discolouration on the heat exchanger surface is a nor- dues from heating surface of the heat mal sign of use. It has no bearing on the function and exchanger.
  • Page 53 Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) 3. Undo the hose clip. Remove the black supply 8. Reconnect the supply hose and secure in place hose. with the hose clip. Check that connections on the trap and heat exchanger are seated correctly. 4.

  • Page 54: Installing The Burner

    Commissioning, inspection, maintenance Installing the burner Fig. 36 1. Insert the burner. Tighten screws 3. Check the gas connections for leaks. diagonally. Tighten screws as tightly as necessary and ensure that the components are undamaged and are func- Danger tioning correctly throughout service life. Escaping gas leads to a risk of explosion.

  • Page 55: Checking The Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Checking the expansion vessel and system pressure Note 3. Top up with water until the charge pressure of the The expansion vessel can lose some of its charge cooled system is at least 1.0 bar (0.1 MPa), and is pressure over time.

  • Page 56: Checking The Dhw Expansion Vessel (If Installed) And Pre-Charge Pressure

    Commissioning, inspection, maintenance Checking the DHW expansion vessel (if installed) and pre-charge pressure Fig. 37 1. Check the static pressure of the DHW line down- 5. Drain the pipe via air vent valve stream of the pressure reducer and adjust if required.

  • Page 57: Checking The Electrical Connections For Firm Seating 29. Checking All Gas Equipment For Leaks At Operating Pressure

    Commissioning, inspection, maintenance Checking the electrical connections for firm seating Checking all gas equipment for leaks 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.

  • Page 58: Checking The Flue System For Unrestricted Flow And Leaks

    Commissioning, inspection, maintenance Checking the combustion quality (cont.) 4. Check the CO content. If the actual value deviates from the permissible ranges, implement steps lis- ted above. 5. Enter the actual value into the report. 6. Adjust the upper heating output. See the following chapter.

  • Page 59: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Adjusting the heating curves Tap the following buttons: 5. OK 6. Use to set the slope. 2. Use to select "P.3" for heating curve. 7. OK 3. OK 8. Use to set the level. 4. Use to select "HC1" for "heating circuit 1" 9.

  • Page 60: System Configuration Calling Up Parameters

    System configuration (parameters) Calling up parameters Note 3. OK The display and setting of some parameters is dependent on: 4. Use to select the parameter for adjust- ■ Heat generator ment. See tables below. ■ Connected accessories and the functions associated with them 5.
  • Page 61 System configuration (parameters) Parameter (cont.) 3 Scald protection Setting Explanations The adjustable DHW temperature is limited to a maxi- mum value. Scald protection OFF Danger Risk of injury due to increased DHW tempera- ture. Inform the system user of the risk from the raised outlet temperature at the draw-off points.
  • Page 62 System configuration (parameters) Parameter (cont.) 7 Maximum heating output Setting Explanations A limit can be set on the maximum heating output for heating mode. Heating output in the delivered condition 100 % 0 to 100 Adjustable from 0 to 100 % 8 Maximum flow temperature limit, heating circuit 1 Setting Explanations...

  • Page 63: Further Settings

    System configuration (parameters) Parameter (cont.) 13 Room influence factor, heating circuit 2 Setting Explanations The higher the value, the greater the influence of the room temperature on the flow temperature of the heat- ing circuit (heating curve). Operation "with room tem- perature hook-up"...

  • Page 64: Subscriber Numbers Of Connected Extensions

    System configuration (parameters) Parameter (cont.) 2426.3 Room temperature-dependent heating circuit pump logic for heating circuit 1 (only for weather- compensated control units with room temperature hook-up). Setting Explanations Only activate this function for the heating If the actual room temperature is above the threshold circuit with mixer or if there is only one di- value (selected set room temperature plus hysteresis rect heating circuit in the system.
  • Page 65 System configuration (parameters) Subscriber numbers of connected extensions (cont.) Rotary switch S1 settings: ■ EM-S1 extension (system with solar collectors): 0 ■ EM-EA1 extension (max. 1 extensions in one sys- tem) Note On the EM-EA1 extension, select 1 if the "External heating circuit hook-up"...

  • Page 66: Diagnosis And Service Service Menu

    Diagnosis and service checks Service menu Calling up the service menu Tap the following buttons: Note Tap " " to return to the service menu. and OK simultaneously for approx. 4 s, then release. 2. Select the required menu section (e.g. "b.1" Con- nect with software tool).

  • Page 67: Diagnosis

    Diagnosis and service checks Diagnosis Checking operating data Operating data can be checked in various areas. See Note "Diagnosis" in the service menu overview. If a called up sensor is faulty, "- - -" appears on the Operating data on heating circuits with mixer can only display.

  • Page 68: Troubleshooting Fault Display On The Programming Unit

    Troubleshooting Fault display on the programming unit The display shows " " in the event of a fault. 3. OK Note to call up fault entry "E.1 to E.5". If a central fault message facility is connected, this is switched on. 5.

  • Page 69: Overview Of Electronics Modules

    Troubleshooting Overview of electronics modules Fig. 40 HBMU heat management unit Programming unit Resetting the burner The display shows flashes. Tap the following buttons: The burner is locked due to a fault. Reset the burner: to display the fault number. Note simultaneously for approx.

  • Page 70: Fault Messages

    Troubleshooting Fault messages Note For diagnostics and troubleshooting, see chapter "Repairs". Fault messages dependent on appliance equipment level Displayed fault System characteristics Cause Measures code No DHW heating Lead break, cylinder tem- Check DHW setting in the com- ■ perature sensor missioning assistant and correct if necessary.
  • Page 71 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code No solar DHW heating Short circuit, solar cylinder Check cylinder temperature sen- temperature sensor (bot- sor. tom) Measure voltage at sensor input on ADIO electronics module. Set val- ue: 3.3 V with sensor disconnec- ted.
  • Page 72 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Flue gas temperature lim- Check heating system fill level. ■ iter has responded. Check pre-charge pressure in di- ■ aphragm expansion vessel. Ad- just to required system pressure. Check whether flow rate is suffi- ■...
  • Page 73 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Flame signal is already Close the gas shut-off valve. Re- present at burner start. move connecting cable of the ioni- sation electrode. Reset the appli- ance.
  • Page 74 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code System in a fault state No flow rate Top up with water. Vent the system. If the fault occurs repeatedly: Check/open the BDF valves. ■ Check/replace the flow sensor (if ■...
  • Page 75 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code No internet connection Error with communication Check cables and plug-in connec- module tions between heat management unit and communication module. Normal operation Internal communication Check cables and plug-in connec- error, programming unit tions between heat management unit and HMI programming unit.
  • Page 76 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Short circuit, flow temper- Check the flow temperature sen- ature sensor/high limit sor/high limit safety cut-out. safety cut-out Check sensor lead. Replace faulty component if required. Reset the appliance.
  • Page 77 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Air mass rate flow not de- Check for dust contamination in ■ tected correctly in fan unit. the supply air. Check burner gauze assembly ■...
  • Page 78 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state No ignition spark Check whether the ignition elec- ■ trode insulation is damaged. Check for a voltage of 230 V∼ at ■ the ignition module during the ig- nition phase.
  • Page 79 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code 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 80 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner restarts. Preparation for calibration Check ionisation electrode and ■ of ionisation current: connecting cable. Stabilisation conditions for Check plug-in connections for ■ pre-calibration not met. loose contacts. Check flue system; remove flue ■...
  • Page 81 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner restarts. Performing ionisation cur- Check ionisation electrode and ■ rent calibration: Calibra- connecting cable. tion not performed. Check plug-in connections for ■ Minimum value or termi- loose contacts. nation criterion not Check flue system;...
  • Page 82 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner restarts. Ionisation current differen- Check ionisation electrode and ■ tial compared to previous connecting cable. value not plausible Check plug-in connections for ■ loose contacts. Check flue system; remove flue ■...
  • Page 83 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code 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 84 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state IO electrode earth fault, Check ignition electrode for earth HBMU heat management fault. If the fault persists, replace unit faulty. the HBMU heat management unit. Reset the appliance.
  • Page 85 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code 417, 418 Burner in a fault state HBMU heat management Replace the HBMU heat manage- unit faulty ment unit: See chapter "Replacing the HBMU heat management unit". Reset the appliance. System in control mode, cal- Time synchronisation Set the time.
  • Page 86 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Contaminated combustion Check flue system for contamina- air, flue gas recirculation tion and flue gas recirculation. Clean flue system if required. Reset the burner. Note Deposits on the electrodes indicate foreign bodies in the combustion...
  • Page 87 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Gas supply insufficient Test static gas pressure and gas ■ during calibration. Conta- flow pressure. minated or insufficiently Check that on-site gas line and ■...
  • Page 88 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code 527, 528 Burner in a fault state Incorrect HBMU heat Overwrite (flash) the HBMU heat management unit parame- management unit with the correct ter set parameter set. Burner in a fault state Condensate backup in the Check system for condensate ■...
  • Page 89 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Normal operation without Short circuit, room tem- Check external room temperature room influence perature sensor, heating sensor for heating circuit or room circuit 1. temperature sensor on remote control unit. Burner in a fault state Air mass flow rate sensor Check air mass flow rate sensor.
  • Page 90 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code No DHW heating Minimum system pressure Check that the cylinder flow and ■ before the start of DHW return are open. heating is too low. Possi- Ensure that all quick-action air ■...
  • Page 91 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code No DHW heating Minimum system pressure Check that the cylinder flow and ■ is too low during DHW return are open. heating. Possible causes: Ensure that all quick-action air ■...

  • Page 92: Repairs

    Troubleshooting Repairs Draining the boiler on the heating water side Please note Risk of scalding Residual water will escape when the boiler or one of the following components is fitted or removed: ■ Water-filled pipework Circulation pumps ■ Plate heat exchanger ■...

  • Page 93: Draining The Boiler On The Dhw Side

    Troubleshooting Repairs (cont.) Draining the boiler on the DHW side Please note Risk of scalding Only drain the boiler or heating system when the boiler water or cylinder temperature has drop- ped below 40 °C. Fig. 42 1. Close cold water shut-off valve 3.

  • Page 94: Removing The Boiler From The Pre-Plumbing Jig Or Mounting Frame

    Troubleshooting Repairs (cont.) Removing the boiler from the pre-plumbing jig or mounting frame Fig. 43 Note Danger Use new gaskets when assembling. Escaping gas leads to a risk of explosion. Check all connections on the gas side (also Internal gasket diameter: inside the appliance) for tightness.
  • Page 95 Troubleshooting Repairs (cont.) ■ LED constant green: No communication (pump is running without external control from the boiler controller). ■ LED flashing green: Pump is running with external control (PWM signal) from the boiler controller ■ LED constant red: Pump failure Note The pump is controlled by a PWM signal.

  • Page 96: Checking The Temperature Sensors

    Troubleshooting Repairs (cont.) Checking the temperature sensors Fig. 45 Heat generator circuit flow temperature sensor 3. Check the sensor resistance. Note position of (dual sensor) guide lug Sensor 1: Connections 1 and 3 ■ 1. Check the leads and plugs of flow temperature Sensor 2: Connections 2 and 4 ■...
  • Page 97 Troubleshooting Repairs (cont.) Cylinder temperature sensor/outlet temperature Flue gas temperature sensor sensor 1. Check the lead and plug of flue gas temperature 1. Check lead and plug of cylinder temperature sen- sensor or outlet temperature sensor 2. Disconnect leads, flue gas temperature sensor 2.

  • Page 98: Replacing The Hbmu Heat Management Unit

    See spare part installation instructions and inter- If replacing the HBMU heat management unit, net address: www.viguide.info "ViGuide" must be used. Replacing the power cable When replacing the power cable, only use the power cable available as a spare part from Viessmann.

  • Page 99: Replacing The Hmi Connecting Cable

    Troubleshooting Repairs (cont.) Replacing the HMI connecting cable Please note Incorrect routing of the cable can lead to heat damage and impairment of the EMC properties. For positioning and securing of the cable (fixing point of the cable tie) see connecting cable installation instructions.

  • Page 100: Removing The Hydraulic Unit

    Troubleshooting Repairs (cont.) Removing the hydraulic unit If components of the hydraulic unit have to be replaced. Danger Risk of electric shock from escaping heating water or DHW After installation, check all connections on the water side for leaks. Fig. 47...

  • Page 101: Checking The Fuse

    Troubleshooting Repairs (cont.) Checking the fuse Fig. 48 1. Turn off the ON/OFF switch. 5. Check fuse F1 (see connection and wiring dia- gram). 2. Depending on the layout: Move programming unit together with bracket to service position. Danger Incorrect or improperly fitted fuses can lead 3.

  • Page 102: Function Description Appliance Functions

    Function description Appliance functions Heating mode Weather-compensated operation: Constant operation without room thermostat: ■ ■ The rooms are heated in accordance with the room The rooms are heated according to the time program temperature and time program settings. settings. The control unit determines a set flow temperature In the time phases at standard room temperature, for the heat generator, subject to the outside temper- the standard set flow temperature or the set comfort...
  • Page 103 Function description Appliance functions (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Fig. 49 Slope setting ranges: Reduced room temperature ■ Underfloor heating systems: 0.2 to 0.8 ■ Low temperature heating systems: 0.8 to 1.6 Set room temperature Standard room temperature or comfort room tem- perature Individually adjustable for each heating circuit.

  • Page 104: Screed Drying

    Function description Appliance functions (cont.) Outside temperature in °C Fig. 52 Changing the slope Changing the level (vertical parallel offset of the heating curve) Screed drying When enabling screed drying, observe the information Observe EN 1264. The report to be provided by the provided by the screed manufacturer.
  • Page 105 Function description Appliance functions (cont.) Temperature profile B (ZV parquet and flooring technology) Days Fig. 54 Temperature profile C Days Fig. 55 Temperature profile D Days Fig. 56 Temperature profile E Days Fig. 57 Temperature profile F Days Fig. 58 Ends after 21 days.

  • Page 106: Dhw Heating

    Function description DHW heating Heating the DHW loading cylinder from cold The heating circuit pump is switched ON and the 3- The loading cylinder is heated up to the set cylinder way diverter valve will be changed over, if the cylinder temperature.

  • Page 107: Connection And Wiring Dia-Hbmu Heat Management Unit

    Connection and wiring diagram HBMU heat management unit Fig. 59 A1 HBMU heat management unit Ignition unit/ionisation X... Electrical interfaces Outlet temperature sensor A2 Power supply unit Gas solenoid valve Power supply Fan motor fÖ a-Ö Vitotrol 100, type UTA Fan motor control Vitotrol 100, type UTDB 230 V connection accessories...
  • Page 108 Connection and wiring diagram HBMU heat management unit (cont.) Heating circuit pump sÖ Cylinder loading pump...
  • Page 109 Connection and wiring diagram HBMU heat management unit (cont.) Fig. 60 A1 HBMU heat management unit Water pressure sensor A3 Programming unit with communication module Flue gas temperature sensor (TCU 100) Boiler water temperature sensor X... Electrical interfaces Circulation pump (PWM)
  • Page 110 Connection and wiring diagram HBMU heat management unit (cont.) Diverter valve stepper motor Remote control (OpenTherm device) Outside temperature sensor Cylinder temperature sensor...

  • Page 111: Reports

    Reports (cont.) Settings and test values Set value Commission- Maintenance/ Maintenance/ service service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pres- sure) For natural gas ..mbar See table "Supply pressure" For LPG ..mbar (Commis- sioning ...) Enter gas type...

  • Page 112: Specification

    Specification Specification Note The supply values are only for reference (e.g. in the gas contract application) or for a supplementary, rough estimate to check the volumetric settings. Due to fac- tory settings, the gas pressure must not be altered from these values. Reference: 15 °C, 1013 mbar (101.3 kPa).
  • Page 113 Specification Specification (cont.) Appliances for single connection Gas boiler, type B and C, category II 2N3P Type B1LF Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 3.2 to 25.0 3.2 to 32.0 3.2 to 25.0 3.2 to 32.0 = 80/60 °C (Pn(80/60)) Natural gas...
  • Page 114 Specification Specification (cont.) Appliances for single connection Gas boiler, type B and C, category II 2N3P Type B1LF Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 3.2 to 25.0 3.2 to 32.0 3.2 to 25.0 3.2 to 32.0 = 80/60 °C (Pn(80/60)) Natural gas...
  • Page 115 Specification Specification (cont.) Appliances for single connection Gas boiler, type B and C, category II 2N3P Type B1LF Rated heating output range (details to EN 15502) = 50/30 °C (P(50/30)) Natural gas 3.2 to 25.0 3.2 to 32.0 3.2 to 25.0 3.2 to 32.0 = 80/60 °C (Pn(80/60)) Natural gas...
  • Page 116 Specification Specification (cont.) Note The supply values are only for reference (e.g. in the gas contract application) or for a supplementary, rough estimate to check the volumetric settings. Due to fac- tory settings, the gas pressure must not be altered from these values.

  • Page 117: Disposal Final Decommissioning And Disposal

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

  • Page 118: Ordering Individual Parts Ordering Individual Parts For Accessories

    Ordering individual parts Ordering individual parts for accessories Please affix accessory labels with part numbers here. Please specify the relevant part no. when ordering individual parts.

  • Page 119: Certificates Declaration Of Conformity

    The Radio Equipment Regulations 2017. Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Climate Solutions SE, D-35108 Allendorf, confirm that the product Vitodens 111-W complies with the NO limits specified by the 1st BImSchV, paragraph 6 [Germany].

  • Page 120: Keyword Index

    Keyword index Keyword index Angle of penetration........... 30 Gas connection............11 Gas solenoid valve.............42 Gas supply pressure..........43 Back draught safety device........50 Gas type..............40 Boiler water temperature sensor........ 96 Gas type conversion..........41 Burner gasket.............49 Burner gauze assembly..........49 Burner installation............
  • Page 121 Keyword index Keyword index (cont.) Parameters for commissioning........58 Subscriber numbers, setting........64 Plate heat exchanger..........99 Supply pressure........... 42, 43 Port 123..............29 Switch S1..............64 Port 443..............29 Symbols............... 8 Port 80................29 System configuration..........33, 60 Port 8883..............29 System filling.............. 39 Product information............9 System pressure............
  • Page 124 Viessmann Climate Solutions SE Viessmann Limited 35108 Allendorf / Germany Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

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