Viessmann VITOFLEX 300-UF Operating Instructions Manual
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Viessmann VITOFLEX 300-UF Operating Instructions Manual

Fully automatic solid fuel boiler with grate combustion
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Viesmann
Operating instructions
for the system user
Fully automatic solid fuel boiler with grate combustion
for the combustion of woodchips, wood pellets, shavings and mixed wood
VITOFLEX 300-UF
Please keep safe.
5694917 GB
8/2018

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Summary of Contents for Viessmann VITOFLEX 300-UF

  • Page 1 Viesmann Operating instructions for the system user Fully automatic solid fuel boiler with grate combustion for the combustion of woodchips, wood pellets, shavings and mixed wood VITOFLEX 300-UF Please keep safe. 5694917 GB 8/2018...
  • Page 2 Safety instructions For your safety Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained Danger Please note This symbol warns against the risk of injury. This symbol warns against the risk of material losses and environmental pollution. Warning Warning of a medium risk of injury.

  • Page 3: For Your Safety

    Safety instructions For your safety (cont.) In case of fire Danger Fire presents a risk of burns and explosion. ■ Shut down the heating system. ■ Use a tested fire extinguisher, class ABC. What to do if the heating system develops a fault Danger Fault messages indicate faults in the heating system.
  • Page 4 Index Index 1. Introductory information Symbols ....................Intended use ..................Appliance description ................Operating phases .................. Commissioning ..................2. On operation Programming unit .................. 11 Default display ..................11 Buttons and symbols in header ............. 12 ■ Buttons and symbols in operating and display area ......
  • Page 5 Index Index (cont.) 8. Further checks and man- Checks ....................34 ual mode Manual mode ..................34 Buttons and symbols for manual mode ..........34 ■ Subsection pages for the boiler ............. 34 Fuel ..................... 34 ■ Secondary air ..................35 ■...

  • Page 6: Intended Use

    Introductory information 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. Warning of material losses and environ- mental pollution Live electrical area Pay particular attention.

  • Page 7: Appliance Description

    Introductory information Appliance description The Vitoflex 300-UF is a fully automatic solid fuel boiler In the Vitoflex 300-UF, fuels as defined in chapter with grate combustion. "Ordering fuel" can be combusted in an automatic The boiler is made of steel and is lined with firebricks.
  • Page 8 Introductory information Appliance description (cont.) Fig. 2 Safety heat exchanger Ignition fan connection Flame tube Connection, primary air fan 2 Heat exchanger Drive, infeed grate Flue outlets Feed screw conveyor Up to 720 kilowatts: 1 flue outlet, centre Ash removal screw conveyor From 950 kilowatts: 1 flue outlet, left or right-hand Infeed grate side (alternative flue outlet is closed off)

  • Page 9: Operating Phases

    ■ Integration into an overall system The Vitoflex 300-UF is part of an overall system. The boiler's sensors and drive units are connected to the system control unit via the electrical installation. The heating system installation links the boiler to the heating system circuit.
  • Page 10 Introductory information Commissioning (cont.) As the user of new combustion equipment, you may be obliged to notify your local flue gas inspector of the installation [check local regulations]. Your local flue gas inspector [where applicable] will also provide you with information on additional activities concerning your combustion equipment (such as regular testing, clean- ing, etc.).

  • Page 11: Programming Unit

    On operation Programming unit The programming unit is equipped with a touchscreen. To input settings and check information, tap the on-screen buttons. On some of the control unit pages you can enter text and values. Tap an entry field and a keyboard or num- ber pad will appear on the touchscreen.
  • Page 12 On operation Default display (cont.) Buttons and symbols in header "Menu" Calling up the menu "Boiler technician" The system is "Switched on". You can As the boiler technician, you can switch the switch the system off. heating system on and off and change sys- The system is "Switched off".
  • Page 13 On operation Display of subsection pages Set and actual values as well as status information can The Manual mode and Automatic mode buttons be checked in the following "Subsection pages". enable you to operate components manually or auto- All subsection pages are displayed either as an "Over- matically;...

  • Page 14: Overview Of The Menu

    Display of actual and set values For example, to change the user or password. Service – see page 23 Contact details for the "Customer", the "Contact person" and "Viessmann Holzheiz- technik" Mode The "Mode" button calls up the following functions:...
  • Page 15 Start-up/shutdown Information on starting up/shutting down Warning Caution Risk of injury due to untrained personnel. Risk of burns due to hot system components. Only allow trained and experienced personnel Only touch handles and identified parts. ■ ■ to operate the product. Never touch sight glasses or their retainers.

  • Page 16: Shutting Down

    Start-up/shutdown Starting up (cont.) Silo filling When the "Silo filling" function is activated, the boiler 1. In the default display, tap the boiler symbol runs through the start cycle up to the point of ignition. The overview of the "Mode" page is displayed. Instead of igniting, the boiler then switches back to operating phase "OFF"...

  • Page 17: Parameter Level

    Settings Parameter level From some subsection pages, you reach the corre- In the subsection pages, tap on the button ¸ sponding parameter level. The parameters may be assigned to several tabs. Please note The number of parameters varies depending on the Incorrect parameter settings can cause damage system configuration.
  • Page 18 Settings Heat distribution settings (cont.) Parameter Description Setting in Setting Standard range value Set DHW tempera- Set temperature for DHW °C 40 to 80 ture Offset, set return Setting specifies how much above the actual DHW °C 5 to 30 temperature temperature the set return temperature is Start hysteresis...

  • Page 19: Heating Circuit

    Settings Heat distribution settings (cont.) 4. Activate the set periods by selecting the days of 5. Repeat steps 1 to 4 to input further periods. the week. The display of the selected days of the week changes to showing the in "green".

  • Page 20: User Administration

    Further settings Settings in the "Panel" The following settings can be made via the "Panel" "Observer" button: The "Enter password" window is displayed. Cleaning the touchscreen ■ Setting the language 3. Enter the "Password" via the number pad. ■ ■ Setting the backlighting Confirm with "Enter"...
  • Page 21 Further settings User administration (cont.) You can manage users from this page. Up to 5 users can be logged. Creating users 1. Tap an empty "Name" field. 3. Enter the name via the keypad and the password The "Enter password" window is displayed. via the numeric keypad.

  • Page 22: Further Settings

    Further settings Diagrams (cont.) Bottom display field ■ To move the time axis Skips to the beginning. Jumps back one page. Jumps forward one page. Skips to the end. ■ Current cursor position Moves the cursor to the left. Moves the cursor to the right. Positions the cursor on the current time point.

  • Page 23: Operating Data

    To input the following contact details: ■ Customer 1. "Menu" ■ Contact person Viessmann Holzheiztechnik address ■ "Service" Checking fault and maintenance messages Tap the following on-screen button in the header: Tabs in the "Fault messages" window: "Fault in the system".
  • Page 24 Checks Checking fault and maintenance messages (cont.) Acknowledging a fault or warning Tap the following button: "Acknowledge" The remedied fault or warning is acknowledged. The acknowledged fault message is only shown under the "History" tab, in grey font. All fault messages All fault messages, including those already acknowl- edged, are shown under the "History"...

  • Page 25: "Fault" Is Displayed

    What to do if... "Fault" is displayed Warning Further information can be found in chapter "Checking Risk of injury due to faults in the heating system fault messages", see page 23. that have not been rectified. In the event of faults, shut down the heating sys- 1.
  • Page 26 What to do if... "Fault" is displayed (cont.) Fault message Cause Remedy Fault: Repeat heat-up Fuel is too damp Use suitable dry fuel Oxygen monitoring detects no Check oxygen probe, clean, cali- combustion brate and replace if necessary Combustion chamber fill time is Adjust combustion chamber fill too short, resulting in lack of fuel time...
  • Page 27 External detector reports CO or Immediately leave the boiler ■ CO2 emission into the boiler room and ensure ventilation room Consult Viessmann Technical ■ Service Fault: Electrostatic filter Check possible cause at electro- Check and remedy the fault in ac-...
  • Page 28 Inverter is faulty or there is no Consult a qualified electrician or flue gas fan supply voltage at the inverter Viessmann Technical Service Fault: Flue gas fan, excess tem- Motor is overloaded due to ex- Consult a qualified electrician or...
  • Page 29 Fault: Inverter, flue gas fan Check flue gas fan plug. Motor Insert plug Motor failure faulty Consult a qualified electrician or Viessmann Technical Service Fault: Safety limit switch, convey- Service hatch on an ash removal Close service hatch or devices device is open...
  • Page 30 Ash removal, Boiler 2 age (foreign body) Fault: Inverter, primary air fan Primary air fan faulty Consult a qualified electrician or Motor failure Viessmann Technical Service Fault: Inverter, secondary fan Secondary fan faulty Consult a qualified electrician or Motor failure Viessmann Technical Service...
  • Page 31 Warning: No CAN connection to Charging module is faulty or there Consult a qualified electrician or charging chamber is no supply voltage at the charg- Viessmann Technical Service ing module. Warning: Temp. maintaining, Boiler valve in manual mode Activate automatic mode...
  • Page 32 When changing to a different fuel, have the Viessmann Warning engineers adjust the parameters to suit the new fuel. Risk of poisoning from carbon monoxide and This will ensure optimum combustion of each fuel type.
  • Page 33 What to do if... Adjusting the ash removal The amount of ash in the combustion chamber When setting the ash removal cycles, observe the fol- depends on the ash content of the fuel. The ash is lowing principle: automatically removed from the boiler by means of a Long pause time between ash removal events ■...

  • Page 34: Manual Mode

    Further checks and manual mode Checks The subsection pages display set and actual values as well as status information. Many of the actual values are displayed graphically in the form of a scale. Manual mode The manual mode and automatic mode buttons Manual mode is called up as follows: enable you to operate components manually or auto-...

  • Page 35: Buffer Cylinder

    Further checks and manual mode Subsection pages for the boiler (cont.) Green arrow animated: Fuel supply active "Free" Light barrier for ash removal is clear "Clockwise" rotation "Interrupted" Light barrier for ash removal is "A-clockwise" rotation interrupted Green arrow animated: Fuel supply active Secondary air Tab "Secondary air/primary air"...
  • Page 36 Further checks and manual mode Subsection pages for auxiliary systems (cont.) Default set value "Flow" Actual and set flow temperature in °C "Default flow temperature" "External demand" Boiler 2 "Cylinder" (heating water buffer cylinder) Boiler status or operating mode Actual and set cylinder temperature in °C "Boiler 2"...

  • Page 37: Shutting Down The Heating System For An Extended Period

    Decommissioning Shutting down the heating system for an extended period 1. Switch off the system with the button. 3. Open the combustion chamber door. The control unit switches the system off automati- cally. 4. Allow the combustion chamber time to cool down. For the Automatic shutdown function, see page 38.

  • Page 38: Symbol Description

    "Reset"; see page 24. The maintenance and cleaning schedules listed below use the following symbols for each personnel group. Symbol Description Boiler technician Viessmann Technical Service Approved heating contractor Cleaning Automatic shutdown The "Automatic shutdown" function determines the Requirements time at which the boiler switches to burnout, e.g.

  • Page 39: Maintenance

    Maintenance Cleaning (cont.) 1. In the default display, tap the boiler symbol 5. Start the "Maximum cylinder heating" function by The overview of the "Mode" page is displayed. pressing the "Maximum cylinder heating" but- ton; see page 39. 2. Start the function via the "Automatic shut- The cylinder is heated to its maximum level 2 down"...

  • Page 40: Cleaning Intervals

    Maintenance Cleaning (cont.) Cleaning intervals Fig. 4 Activity Interval Daily Annually hours hours Heat exchanger Check sight glasses of light barriers for dirt and clean if necessary Remove any deposits from the apertures for the sight glasses. Clean heat exchanger together with complete flue gas path and re- versing area Clean lambda probe Clean primary air fan, secondary fan and flue gas fan...

  • Page 41: Inspection And Maintenance

    Inspection and maintenance Annual general inspection Costs for inspection and maintenance are met by the Viessmann Technical Service is happy to carry out the operator. inspection and maintenance of your heating system The contact details for your contacts can be found and can provide a quote for a maintenance contract.
  • Page 42 Maintenance Inspection and maintenance (cont.) Activity Interval 1200 Every Annually hours hours months Boiler Service electrical safety equipment Service safety equipment on the water side Pneumatic cleaning system Check valves for tightness Heat exchanger Check system pressure at pressure gauge (minimum pressure, water shortage) Check thermally activated safety valve for tightness Check gaskets on heat exchanger door...
  • Page 43 Maintenance Inspection and maintenance (cont.) Flue gas dust extractor (option) maintenance Maintenance intervals Fig. 6 Activity Interval 1200 Every Annually hours hours months Interior Open covers and clean the guide blades of the flue gas dust extractor with a hand brush Flue gas fan Disconnect plug on motor Undo wing nuts and extract motor together with impeller...
  • Page 44 Maintenance Inspection and maintenance (cont.) Servicing the recirculation system (optional) Maintenance intervals Fig. 7 Activity Interval Every six months Clean recirculation fan Clean recirculation gas line Note Check the flue pipe and the maintenance cover for tightness after each cleaning. ■...
  • Page 45 Maintenance Inspection and maintenance (cont.) Note ■ All geared motors of the conveyor devices are main- tenance-free. Only use non-combustible lubricants. ■ Component, activity Interval Regu- As re- Annual- 20,000 hours larly quired or every 3 years Lubricant or oil change Lubricate all flanged bearings and other lubricating points with lithium soap grease Check chain drives for wear;...
  • Page 46 Ordering fuel Ordering fuel Approved woodchips To EN ISO 17225-4 According to ÖNORM M 7133 Moisture content ≤ M50 ≤ w50 Moisture content ≤ M35 ≤ w35 Grain size P16S ■ ■ P31S ■ ■ Approved wood pellets Delivery methods To EN ISO 17225-2 Wood pellets are offered in 15 to 30 kilogram sacks, in Quality...

  • Page 47: Ordering Fuel

    Ordering fuel Notes on filling the fuel store (cont.) For horizontal discharge For flexible agitator discharge If the fuel store is empty, fill the fuel store until the For the "Silo filling" function, see page 16. articulated arms or spring blades are covered by approx.
  • Page 48 Appendix Buttons and symbols These symbols are not always displayed, but appear subject to the system version and the operating phase. General buttons and symbols Navigate up and down Enter To confirm the entry. Scroll to the left To terminate the entry. Scroll to the right To terminate the function.

  • Page 49: Buttons And Symbols

    To the Service page Current cursor position Contact details for the "Customer", the Moves the cursor to the left. "Contact person" and "Viessmann Holzheiz- Moves the cursor to the right. technik" Positions the cursor on the current time point. To the IO modules...

  • Page 50: Information On Disposal

    (Altstoff Recycling Austria AG, licence num- ber 5766). Final decommissioning and disposal of the heating system Viessmann products can be recycled. Components and fluids from your heating systems are not part of ordinary domestic waste. Please speak to your contractor about the correct dis- posal of your old system.
  • Page 51 Keyword index Keyword index Display............... 13 Acknowledging Display of subsection pages........13 – Fault................ 24 – Warning..............24 Administration Fault – User.................20 – Acknowledging............24 Air supply Fault message............25 – Adjusting..............32 Fault messages Appliance description........... 7 – All................24 Ash removal..............
  • Page 52 Keyword index Keyword index (cont.) Inspection and service – Recirculation system (optional)....... 44 Recirculation system (optional) Intended use..............6 – Service..............44 Reset – Service..............24 Keys – Default display............11 Safety equipment............8 Secondary air (subsection) Language, setting............20 – Checks..............35 –...

  • Page 56: Your Contact

    Your contact Contact your local contractor if you have any questions about your system or wish to arrange maintenance or repair work. You can find local contractors on the internet at www.viessmann.de. Viessmann Werke GmbH & Co. KG Viessmann Limited...

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