Viessmann VITODENS 111-W B1LF-M Installation And Service Instructions For Contractors
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Viessmann VITODENS 111-W B1LF-M Installation And Service Instructions For Contractors

Viessmann VITODENS 111-W B1LF-M Installation And Service Instructions For Contractors

Wall mounted gas condensing boiler.natural gas and lpg version
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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
VITODENS 111-W
Please keep safe.
6167585 GB
11/2020

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Summary of Contents for Viessmann VITODENS 111-W B1LF-M

  • 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 VITODENS 111-W Please keep safe. 6167585 GB 11/2020...

  • Page 2: Target Group

    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: Safety Instructions

    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: If You Smell Flue Gas

    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

    Index Index 1. Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Vitodens 111-W, type B1LF ..............■ System examples .................. Spare parts lists ..................2. Preparing for installation ........................ 10 3. Installation sequence Removing the boiler from the packaging ..........12 Mounting the boiler and making connections ........
  • Page 7 Index Index (cont.) Replacing the power cable ..............84 ■ Replacing the HMI connecting cable ..........85 ■ Checking the plate heat exchanger ............ 85 ■ Removing the hydraulic unit ............... 86 ■ Checking the fuse ................87 ■ 8. Function description Appliance functions ................

  • Page 8: Information Disposal Of Packaging

    Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Symbols The steps in connection with commissioning, inspec- Symbol Meaning tion and maintenance are found in the "Commission- Reference to other document containing ing, inspection and maintenance" section and identified further information as follows: Step in a diagram:...

  • Page 9: Product Information

    Detailed information on system examples can be found tion diagrams and function descriptions are available at: www.viessmann-schemes.com to help setting up the heating system. Spare parts lists Information about spare parts can be found at www.viessmann.com/etapp or in the Viessmann spare part app.

  • Page 10: 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 E FG H Fig. 1 Heating flow Gas connection Heating return Safety valve Filling/draining Cold water Condensate drain Note 2. Prepare the water connections to the valves/fittings This boiler (IP rating: IP X1) is approved for installation of the mounting bracket.
  • Page 11 Preparing for installation Preparing for installation (cont.) Connection on the DHW side Cold water installation Safety assembly to DIN 1988 and EN 806 is required if it is possible that the mains water supply pressure will exceed 10 bar (1.0 MPa), and no DHW pressure reducing valve is installed (to DIN 4753).

  • Page 12: 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 13 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 Ø...
  • Page 14 Installation sequence Mounting the boiler and making connections (cont.) 3. Note 4. Torque for union nuts Only remove the clip under the gas pipe union nut ■ : 24 Nm ½ once the appliance has been installed. Clip is no ■...

  • Page 15: Installation Sequence

    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 16: Removing The Front Panel

    Installation sequence Mounting the boiler and making connections (cont.) 1. Replace gaskets. Fit valves and gas shut-off valve. 3. Note Only remove the clip under the gas pipe union nut Internal gasket diameter: once the appliance has been installed. Clip is no ■...

  • Page 17: Type Plate

    Installation sequence Mounting the boiler and making connections (cont.) Type plate Note 1. Take the additional type plate from the documenta- tion supplied with the boiler. The type plate is attached to cover panel in the appliance. See page 39. Note Additional type plate with access code (QR code) The documentation with the additional type plate...

  • Page 18: Condensate Connection

    Installation sequence Condensate connection Fig. 8 Connect the drain hose with a constant fall and a pipe vent to the drain network or a neutralising system. Note Route the onward drain line inside the building as far as possible. If the onward drain line is routed outside the building: ■...

  • Page 19: Filling The Trap With Water

    Groppalli flue system" enclosed with the technical Installation instructions for back draught safety documentation may only be used in conjunction with device the Viessmann flue system made by Skoberne or Groppalli. Only carry out commissioning when the following conditions have been met: Connecting the balanced flue pipe ■...

  • Page 20: Gas Connection

    Installation sequence Gas connection 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 21: Electrical Connections

    Installation sequence 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. Opening the wiring chamber Note If only PlusBus and the outside temperature sensor are connected to the boiler, the wiring chamber does not need to be opened.

  • Page 22: Layout Of The Electrical Connections

    Installation sequence Electrical connections (cont.) 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 23: 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 Aperture for cable entry Plug for connecting sensors and PlusBus Remove plug from the pack of installation compo- nents. Required plugs are supplied in separate packaging.

  • Page 24: Information On Connecting Plusbus Subscribers

    Installation sequence Electrical connections (cont.) "4" External demand Assigning functions in the commissioning assis- ■ ■ "5" External blocking or alternatively connection for tant external heating circuit hook-up (if no more than one heating circuit hook-up is configured on commission- See commissioning assistant in "Commissioning".

  • Page 25: Power Supply Fö

    Installation sequence Electrical connections (cont.) 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. If the current flowing to the connected working parts ■...

  • Page 26: Wifi Operational Reliability And System Requirements

    Installation sequence Electrical connections (cont.) Fig. 16 Bundle cables using the supplied cable ties. Secure the cable ties to the underside. Do not route cables/leads over sharp edges and lying against the casing (sound transmission). WiFi operational reliability and system requirements WiFi router system requirement ■...

  • Page 27: Angle Of Penetration

    Installation sequence WiFi operational reliability and system… (cont.) Wireless signals are isolated by service ducts and Install the heat generator as close as possible to the ■ lift shafts. WiFi router to ensure a good WiFi connection. The sig- ■ Wireless signals are disrupted by devices that also nal strength can be displayed on the heat generator operate with high frequency signals.

  • Page 28: Closing The Wiring Chamber And Fitting The Front Panel

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

  • Page 29: 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........30 • • 2. Filling the heating system....................34 • 3. Filling the loading cylinder on the DHW side..............36 •...

  • Page 30: Commissioning The System With The Commissioning Assistant

    Commissioning, inspection, maintenance Commissioning the system with the commissioning assistant Please note Only commission the appliance with a fully filled trap. Check that the trap has been filled with water. Please note 3. For further steps, see commissioning assistant in Only commission the appliance with a fully filled the following overview.

  • Page 31: Commissioning, Inspection, Maintenance

    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 32 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 (depend- 2 - 1 direct heating circuit with low loss header ing on appliance type, not 3 - 1 direct heating circuit without low loss header with DHW cylinder all schemes possible)
  • Page 33 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 8 - 230 V fault message input and fault message output (without system blocking) 10 - External extractor (e.g.

  • Page 34: 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 WiFi Activating the internet connection: communication module with extended type plate. The internal communication module supports commis- Operating instructions sioning of the heat generator with the "Vitoguide app", connectivity with the "ViCare app"...
  • Page 35 Commissioning, inspection, maintenance Filling the heating system (cont.) 2. Switch on the power supply. 3. Activate the filling function (see commissioning assistant or following chapter). 4. Open shut-off valves and (if fitted) 5. Open valves and fill the heating system. Mini- mum system pressure 0.8 bar (80 kPa).

  • Page 36: 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 37: Checking The Gas Type

    Commissioning, inspection, maintenance Venting the heating system (cont.) 8. OK The venting function is activated. The display shows the current system pressure. The venting function ends automatically after 20 min or when you tap OK. Checking the gas type The boiler is equipped with an electronic combustion 1.

  • Page 38: Removing The Front Panel

    Commissioning, inspection, maintenance Removing the front panel Fig. 23...

  • Page 39: 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. 24 Cover panel Type plate Operation with LPG Purge the LPG tank twice on commissioning/replace-...

  • Page 40: Function Sequence And Possible Faults

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) Supply pressure (flow pressure) Measures For natural gas For LPG < 20 mbar (2.0 kPa) < 50 mbar (5.0 kPa) Do not start the boiler. Notify the gas supply utility or LPG supplier.

  • Page 41: Setting The Max. Heating Output

    Commissioning, inspection, maintenance Function sequence and possible faults (cont.) Automatic calibration of Fault 62, 373 Ensure adequate heat trans- the combustion controller fer. Reset the appliance. Fault 346, 377 Check gap between ionisa- tion electrode and burner gauze assembly. Check flue system. Remove flue gas recirculation if re- quired.
  • Page 42 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: Rated heating output Speed settings in the in kW delivered condition in % Min.

  • Page 43: Activating Screed Drying

    Commissioning, inspection, maintenance Adjusting pump rate of integral circulation pump (cont.) Curve Pump rate of circulation pump 10 % 20 % 30 % 40 % 50 % 60 % 70 % 80 % 90 % 100 % Activating screed drying Screed drying Six different temperature profiles can be set for screed Note...

  • Page 44: Burner Adjustment When Connecting Multiple Flues To A Shared Flue System

    Commissioning, inspection, maintenance Burner adjustment when connecting multiple flues to a shared flue system Note System conditions: Only make this adjustment on appliances suitable for ■ Shared flue in shaft 100 mm multiple connection. ■ Balanced flue connection pipe from boiler to shaft, For suitable Vitodens appliances, see pricelist.

  • Page 45: 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 46: 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. the burner door pin. Secure burner gauze assembly and gasket 9. Fit electrodes .

  • Page 47: Cleaning The Heating Surfaces

    Commissioning, inspection, maintenance Checking the back draught safety devices (cont.) Back draught safety device in the mixing shaft of 5. Refit fan and secure with 2 screws. the burner Torque: 4.0 Nm Back draught safety device in the flue gas connec- tion Fig.

  • Page 48: Checking The Condensate Drain And Cleaning The Trap

    Commissioning, inspection, maintenance Cleaning the heating surfaces (cont.) 1. Use a vacuum cleaner to remove combustion resi- 3. Check condensate drain. Clean the trap: See the dues from heating surface of the heat following chapter. exchanger. 4. Check the thermal insulation mat (if installed) in the 2.

  • Page 49: Installing The Burner

    Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) 7. Reconnect the supply hose and secure in place Danger with cable ties. Check that connections on the trap Risk of electric shock from escaping conden- and the heat exchanger are seated correctly. sate and risk of poisoning from escaping flue gas.

  • Page 50: Checking The Neutralising System (If Installed)

    Commissioning, inspection, maintenance Installing the burner (cont.) 3. Check the gas connections for leaks. 4. Connect the cables/leads: ■ Fan motor (2 plugs) Danger ■ Ionisation electrode Escaping gas leads to a risk of explosion. Ignition unit ■ Check all fittings for gas tightness. In the ■...

  • Page 51: Checking The Dhw Expansion Vessel (If Installed) And The Pre-Charge Pressure

    Commissioning, inspection, maintenance Checking the DHW expansion vessel (if installed) and the pre-charge pres- sure Fig. 36 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 52: 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 53: Checking The Flue System For Unrestricted Flow And Leaks

    Commissioning, inspection, maintenance Checking the combustion quality (cont.) Fig. 37 1. Connect a flue gas analyser at flue gas port 6. Adjust the upper heating output. See the following the boiler flue connection. chapter. 2. Open the gas shut-off valve. Start the boiler. Cre- 7.

  • Page 54: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Matching the control unit to the heating system (cont.) Accessories installation and service instructions 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.

  • Page 55: 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 56 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 57 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"...

  • Page 58: Energy Saving Functions (Setting Only Via Software Tool)

    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 set flow temperature of the heating circuit (heating curve). Operation with room temperature hook-up must be set for the heating cir- cuit.
  • Page 59 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 function "external heating circuit hook-up"...

  • Page 60: 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 61: Diagnosis

    Diagnosis and service checks Diagnosis Checking operating data Operating data can be checked in various areas. See 2. Use to select "b.3" for diagnostics. "Diagnosis" in the service menu overview. Operating data on heating circuits with mixer can only 3. OK be called up if such components are installed in the system.

  • Page 62: 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 63: Overview Of Electronics Modules

    Troubleshooting Overview of electronics modules Fig. 39 HBMU heat management unit Programming unit Fault messages Note For diagnosis and troubleshooting, see chapter "Repairs". Fault messages dependent on appliance equipment level...
  • Page 64 Troubleshooting Fault messages (cont.) 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 required. Check the cylinder temperature ■ sensor (terminal 2). Measure voltage at sensor input ■...
  • Page 65 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Regulates without flow tem- Lead break, low loss Check commissioning assistant ■ perature sensor for low loss header sensor setting, low loss header. header. Check flow temperature sensor, ■ low loss header.
  • Page 66 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 67 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Fan speed too low Check fan for blockage. ■ Check setting for gas type and ■ flue system. Reset the appliance. Burner in a fault state Internal communication Reset the appliance.
  • Page 68 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. Control mode Internal communication Check cables and plug-in connec- error, programming unit tions between heat management unit and HMI programming unit.
  • Page 69 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner locked out, automatic Temperature limiter has Ensure adequate heat transfer. ■ enabling after appliance cool- responded. Check heating system fill level. ■ down. Independent restart Check pre-charge pressure in di- ■...
  • Page 70 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Shutdown with restart if de- Insufficient gas supply, Check the gas supply. mand exists burner output reduced Optically check input-side screen in the gas solenoid valve for con- tamination. Reset the appliance.
  • Page 71 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Flame signal is not Check ionisation electrode and present or insufficient at connecting cable. Check plug-in burner start. connections for loose contacts. Note Deposits on the electrodes indicate foreign bodies in the combustion air.
  • Page 72 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Repeated flame loss dur- Check ionisation electrode and ■ ing calibration connecting cable. Check plug-in connections for ■ loose contacts. Check flue system. Remove flue ■...
  • Page 73 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 74 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code 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. Burner in a fault state IO electrode earth fault, Check IO electrode for earth fault.
  • Page 75 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code System in control mode, cal- Time synchronisation Set the time. culation out of operation. failed Calculation values can be viewed via software tool. Burner in a fault state Deviation, heat generator Check the flow temperature sen- flow temperature sensor/ sor/high limit safety cut-out.
  • Page 76 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Ionisation current too low Check ionisation electrode and ■ during calibration. Differ- connecting cable. Check plug-in ential compared to previ- connections for loose contacts. ous value not plausible.
  • Page 77 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Ionisation current too high Check gap between ionisation during calibration electrode and burner gauze as- sembly. Check whether there is a lot of dust in the ventilation air (e.g. from construction work).
  • Page 78 Troubleshooting Fault messages (cont.) Displayed fault System characteristics Cause Measures code Burner in a fault state Condensate backup in the Check system for condensate ■ heat cell backup. Check the condensate drain and ■ trap. Replace insulation blocks, elec- ■ trodes and burner gauze assem- bly if required.

  • Page 79: 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 80: 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. 41 1. Close cold water shut-off valve 3.

  • Page 81: 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. 42 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 82: Checking The Temperature Sensors

    Troubleshooting Repairs (cont.) Checking the temperature sensors Fig. 43 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 83 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 84: Information On Replacing The Hbmu Heat Management Unit

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

  • Page 85: 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 86: 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. 45...

  • Page 87: Checking The Fuse

    Troubleshooting Repairs (cont.) Checking the fuse Fig. 46 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 88: 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 89 Function description Appliance functions (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Fig. 47 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 90: Screed Drying

    Function description Appliance functions (cont.) Outside temperature in °C Fig. 50 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 91 Function description Appliance functions (cont.) Temperature profile B (ZV parquet and flooring technology) Days Fig. 52 Temperature profile C Days Fig. 53 Temperature profile D Days Fig. 54 Temperature profile E Days Fig. 55 Temperature profile F Days Fig. 56 Ends after 21 days.

  • Page 92: 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 93: Connection And Wiring Diagram

    Connection and wiring diagram HBMU heat management unit Fig. 57 A1 HBMU heat management unit Outlet temperature sensor X... Electrical interfaces Gas solenoid valve A2 Power supply unit Fan motor a-Ö Power supply Fan motor control fÖ Vitotrol 100, type UTA 230 V connection accessories Vitotrol 100, type UTDB Heating circuit pump...
  • Page 94 Connection and wiring diagram (cont.) Fig. 58 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 95 Connection and wiring diagram (cont.) Diverter valve stepper motor Remote control (OpenTherm device) Outside temperature sensor Cylinder temperature sensor...

  • Page 96: Commissioning/Service

    Commissioning/service reports Commissioning/service reports 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 ...)

  • Page 97: Specification Specification

    Specification Specification 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 (5.7 3.2 (5.7 3.2 (5.7 19.0 25.0 32.0 3.2 - 19.0 3.2 - 25.0 3.2 - 32.0 = 80/60 °C (Pn(80/60)) Natural gas...
  • Page 98 Specification Specification (cont.) 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 (5.7 3.2 (5.7 3.2 (5.7 19.0 25.0 32.0 3.2 - 19.0 3.2 - 25.0 3.2 - 32.0 = 80/60 °C (Pn(80/60))
  • Page 99 Specification Specification (cont.) 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 (5.7 3.2 (5.7 3.2 (5.7 19.0 25.0 32.0 3.2 - 19.0 3.2 - 25.0 3.2 - 32.0 = 80/60 °C (Pn(80/60))

  • Page 100: Flue System Types

    Specification Specification (cont.) 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 (5.7 3.2 (5.7 3.2 (5.7 19.0 25.0 32.0 3.2 - 19.0 3.2 - 25.0 3.2 - 32.0 = 80/60 °C (Pn(80/60))

  • Page 101: Electronic Combustion Control Unit

    Specification (cont.) Available in the following countries Gas categories DE, FR 2N3P 2EK3P 2N3P 2ELw3P Electronic combustion control unit The electronic combustion controller utilises the physi- To achieve optimum combustion control, the system cal correlation between the level of the ionisation cur- regularly carries out an automatic self-calibration;...

  • Page 102: 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 103: Certificates Declaration Of Conformity

    Directive 2014/53/EU. 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 104: Keyword Index

    Keyword index Keyword index Flow pressure.............40 Angle of penetration........... 27 Flow temperature sensor........... 82 Flue gas temperature sensor........83 Front panel removal........... 16 Back draught safety device........46 Function descriptions..........88 Boiler Function sequence.............40 – DHW side, draining..........80 Fuse................87 –...
  • Page 105 Keyword index Keyword index (cont.) Screed drying function......... 43, 90 Parameter Security parameters........... 26 – Heating circuit room influence factor.......57 Service menu – Max. flow temperature, heating circuit....57, 58 – Calling up..............60 – Max. speed, heating circuit pump......56 –...
  • Page 108 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 Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

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Vitodens 111-w b1lf

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