Viessmann VITODENS 111-W Installation And Service Instructions Manual
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Viessmann VITODENS 111-W Installation And Service Instructions Manual

4.7 to 35.0 kw gas condensing storage combi boiler natural gas and lpg version
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VIESMANN
Installation and service instructions
for contractors
Vitodens 111-W
Type B1LD, 4.7 to 35.0 kW
Gas condensing storage combi boiler
Natural gas and LPG version
Gas Council Number: 47-819-43, 47-819-44
VITODENS 111-W
Please keep safe.
5697789 GB
3/2019

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  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 111-W Type B1LD, 4.7 to 35.0 kW Gas condensing storage combi boiler Natural gas and LPG version Gas Council Number: 47-819-43, 47-819-44 VITODENS 111-W Please keep safe. 5697789 GB 3/2019...
  • Page 2 Never touch hot surfaces on the boiler, burner, lidate our warranty. ■ flue system or pipework. For replacements, use only original spare parts supplied or approved by Viessmann. Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing work, touch earthed objects such as heating or water pipes to dis- charge static loads.
  • Page 3 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Flue systems and combustion air Danger Ensure that flue systems are clear and cannot be Escaping gas can lead to explosions which may sealed, for instance due to accumulation of conden- result in serious injury.

  • Page 4: Table Of Contents

    Index Index 1. Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................Vitodens 111-W, type B1LD ..............■ Product description ................Connection accessories ..............■ System examples .................. Spare parts lists ..................2. Preparing for installation Preparing for boiler installation ..............
  • Page 5 Index Index (cont.) 13. Keyword index ........................ 58...

  • Page 6: 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 7: Product Information

    The type plate is located behind the front panel. Product description The Vitodens 111-W is equipped with a cylinder and an The following components are integrated into the integral plate heat exchanger as a cylinder loading hydraulic system: system for DHW heating.

  • Page 8: Preparing For Boiler Installation

    Preparing for installation Preparing for boiler installation Dimensions and connections F GH K Fig. 1 Area for electrical connections Gas connection 22 mm Heating flow 22 mm Safety valve (DHW side) Condensate drain Cold water 15 mm Heating return 22 mm 15 mm Filling/draining Preparing the connections...
  • Page 9 Preparing for installation Preparing for boiler installation (cont.) Safety assembly to DIN 1988 and EN 806 at the cold water connection GH D D H L D N K Fig. 2 Safety assembly (accessories for connection sets Drain for unfinished walls) Cold water Safety valve Drinking water filter...

  • Page 10: Fitting The Wall Mounting Bracket

    Installation sequence Fitting the wall mounting bracket Note The installation surface must be vertical and level. Ø10 Fig. 3 1. Mark out the rawl plug holes. 3. Fit the wall mounting bracket with the screws sup- plied. 2. Drill 10 mm holes and insert the rawl plugs sup- plied.

  • Page 11: Mounting The Boiler And Making Connections

    Installation sequence Mounting the boiler and making connections Removing the front panel and mounting the boiler Note When mounting on a wall, please note: Weight without packaging is approx. 65 kg. Fig. 4 1. Undo the screws on the underside of the boiler; do 4.
  • Page 12 Installation sequence Mounting the boiler and making connections (cont.) ¨ Fig. 5 Heating flow Cold water Heating return Gas connection Safety assembly Connection on the DHW side Mounting the connection set Permiss. operating pressure, cylinder: 10 bar. Install supplied safety assembly in the cold water connection.

  • Page 13: Gas Connection

    Installation sequence Mounting the boiler and making connections (cont.) Gas connection 1. Connect the gas shut-off valve to connection 2. Carry out a tightness test. Note Only use suitable and approved leak detection agents (EN 14291) and devices for the tightness test.

  • Page 14: Balanced Flue Connection

    Flue system installation instructions flue gas. Ensure the flue system functions correctly. Aper- tures for combustion air supply must not be able Connecting several Vitodens 111-W to a shared to be closed off. flue system Prevent condensate drainage via a wind protec- tor.

  • Page 15: Opening The Control Unit Enclosure

    Installation sequence Opening the control unit enclosure Fig. 11 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. Electrical connections Information on connecting accessories When connecting accessories observe the sep- arate installation instructions provided with...

  • Page 16: Connection Accessories

    Installation sequence Electrical connections (cont.) Connection accessories Accessory installation instructions 2. Connect the outside temperature sensor to the connecting cable across terminals 3 and 4 (see page 15). When connecting a Vitotrol 100 or an OpenTherm remote control, remove the jumper across L and 1. Outside temperature sensor (accessories) 1.

  • Page 17: Routing Cables/Leads And Closing The Control Unit Enclosure

    Installation sequence Electrical connections (cont.) Routing cables/leads and closing the control unit enclosure Please note Connecting cables/leads will be damaged if they touch hot components. When routing and securing cables/leads on site, ensure that the maximum permissible tempera- ture for these is not exceeded. Fig.

  • Page 18: Steps - Commissioning, Inspection And Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • • • 1. Filling the heating system....................19 • 2. Adjusting the pre-charge pressure of the diaphragm expansion vessel on the DHW side (if installed)......................... 20 •...

  • Page 19: Filling The Heating System

    Commissioning, inspection, maintenance Filling the heating system According to EN 1717, as a heat transfer medium for 03. Tap MODE. DHW heating, the heating water must meet fluid cate- gory ≤ 3. This requirement is met if water of potable / repeatedly until CONFI flashes.

  • Page 20: Adjusting The Pre-Charge Pressure Of The Diaphragm Expansion Vessel On The Dhw Side (If Installed)

    Commissioning, inspection, maintenance Adjusting the pre-charge pressure of the diaphragm expansion vessel on the DHW side (if installed) Adjust the pre-charge pressure of the DHW-side dia- phragm expansion vessel (accessories) in accordance with the system pressure on the DHW side: Fig.

  • Page 21: Filling The Loading Cylinder On The Dhw Side

    Commissioning, inspection, maintenance Filling the loading cylinder on the DHW side Fig. 16 1. Valves 3. Once air stops coming out of the DHW draw-off must be in the "top" position. point, the loading cylinder is completely filled. 2. Open the cold water line and a DHW draw-off point.

  • Page 22: Changing The Gas Type

    Commissioning, inspection, maintenance Venting the boiler by flushing (cont.) Fig. 17 1. Close the shut-off valves on the heating water side. 5. First close valve 2. Remove cover panel 6. When the required operating pressure has built up, close valve .

  • Page 23: Checking The Static Pressure And Supply Pressure

    Commissioning, inspection, maintenance Changing the gas type (cont.) Selected gas type Date content in content in % CO content in type Delivered condition G 20 7.5 - 10.5 < 1000 Changed to < 1000 Changed to < 1000 Checking the static pressure and supply pressure Danger 5.

  • Page 24: Reducing The Maximum Heating Output

    Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) Supply pressure (flow pressure) Steps For natural gas For LPG Below 10 mbar (1.0 kPa) Below 25 mbar (2.5 kPa) Do not commission the boiler. Notify the gas supply util- ity or LPG supplier.

  • Page 25: Matching The Circulation Pump Rate To The Heating System

    Commissioning, inspection, maintenance Reducing the maximum heating output (cont.) Heating output in kW Setting in % Rated heating output in kW — Matching the circulation pump rate to the heating system In its delivered condition the circulation pump rate is ■...

  • Page 26: Matching The Burner Output To The Flue System

    — coaxial — — — Burner adjustment when connecting multiple flues to a shared flue system When connecting several Vitodens 111-W to a shared ■ Minimum shaft cross-section flue system: Square: 175 x 175 mm – Adjust the burner settings of each connected boiler by...
  • Page 27 Commissioning, inspection, maintenance Burner adjustment when connecting multiple… (cont.) One boiler per floor Fig. 20 Rated heating output 26 kW operation with natural gas – Number of boilers Correction factor (adjustable Flue length a (m) value) ≤ ≤ > 18 >...
  • Page 28 Commissioning, inspection, maintenance Burner adjustment when connecting multiple… (cont.) Rated heating output 26 kW operation with LPG – Number of boilers Correction factor (adjustable Flue length a (m) value) ≤ ≤ ≤ > 12 > 10 – ≤ ≤ ≤ >...
  • Page 29 Commissioning, inspection, maintenance Burner adjustment when connecting multiple… (cont.) Two boilers per floor Fig. 21 Rated heating output 26 kW operation with natural gas – Number of boilers Correction factor (adjustable value) Flue length a (m) ≤ ≤ > 16 >...

  • Page 30: Checking The Combustion Quality

    Note The correction factor changes the boiler modulation range. Checking the combustion quality The Vitodens 111-W is factory-set for natural gas. Dur- If the actual CO or O and CO values deviate from the ing commissioning or maintenance, the CO...
  • Page 31 Commissioning, inspection, maintenance Checking the combustion quality (cont.) Fig. 22 1. Connect a flue gas analyser at flue gas port 4. Check the CO content for the upper heating out- the boiler flue connection. put (100 %). For CO content limits, see page 23. 2.

  • Page 32: Removing The Burner

    Commissioning, inspection, maintenance Removing the burner F 4x Fig. 23 1. Switch OFF the power supply. 5. Undo gas supply pipe fitting 2. Shut off the gas supply. 6. Undo 4 screws and remove the burner. 3. Disconnect the cables from fan motor , gas train Please note and electrodes...

  • Page 33: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Checking the burner gasket and burner gauze assembly Check burner gasket and burner gauze assembly for damage and replace if necessary. Fig. 24 1. Remove electrode 5. Mount thermal insulation ring 2. Undo 2 Torx screws and remove thermal insulation Please note ring Tighten screws enough...

  • Page 34: Cleaning The Heat Exchanger

    Commissioning, inspection, maintenance Checking and adjusting the electrode (cont.) 3. Check the electrode gaps. If the gaps are not as specified or the electrode is damaged, replace the electrode and gasket and align. Please note Tighten screws enough to ensure the components do not suffer damage and will function correctly.

  • Page 35: Checking The Condensate Drain And Cleaning The Trap

    Commissioning, inspection, maintenance Checking the condensate drain and cleaning the trap 1. Release hook and remove trap with sealing piece Pull trap upwards away from the drain connec- tion. 2. Remove supply hose from trap 3. Clean trap 4. Insert trap with sealing piece Refit trap to the drain connection.

  • Page 36: Checking The Diaphragm Expansion Vessels And System Pressure

    Commissioning, inspection, maintenance Installing the burner (cont.) 3. Tighten 4 screws 6. Check the gas connections for tightness. diagonally. Please note Danger Tighten screws enough Escaping gas leads to a risk of explosion. to ensure the components do not suffer Check the fitting for gas tightness.

  • Page 37: Checking All Connections On The Heating Water And Dhw Sides For Leaks

    Commissioning, inspection, maintenance Checking all connections on the heating water and DHW sides for leaks Checking the flue system for unrestricted flow and tightness Checking the firm seating of electrical connections Checking all gas equipment for tightness at operating pressure Danger Please note Escaping gas leads to a risk of explosion.

  • Page 38: Adjusting The Display Contrast

    Commissioning, inspection, maintenance Setting display backlighting for standby (cont.) 04. OK to confirm. 08. OK to confirm. "P" appears in the l.h. display area. The r.h. dis- "0" flashes in the r.h. display area. play area flashes. 09. Use / to select the display backlight. 05.

  • Page 39: Changing From Operation With Lpg To Operation With Natural Gas

    Changing the gas type Changing from operation with LPG to operation with natural gas Fig. 31 1. To remove the burner, see page 32. Changing the gas type at the control unit 2. Undo 2 screws and remove gas train 01.

  • Page 40: Function Sequence And Possible Faults

    Troubleshooting Function sequence and possible faults Display Measure Control unit issues a heat Increase set value and demand ensure heat is drawn off Fan starts After approx. 1 min, fault Check the fan, fan con- necting cables, fan power supply and fan control Ignition Fault F4 Check the ignition module...
  • Page 41 Troubleshooting Fault display (cont.) Fault code dis- System characteristics Cause Measures played Burner blocked CO limiter (if installed) has Check the heating system. Re- responded. CO concentra- move the cause of escaping CO. tion too high. Burner blocked Gas pressure switch (if in- Check the gas supply.
  • Page 42 Troubleshooting Fault display (cont.) Fault code dis- System characteristics Cause Measures played Burner in a fault state Temperature limiter has Check heating system fill level. responded. Check circulation pump. Vent the system. Check the temperature limiter and connecting leads (see page 47).

  • Page 43: Repairs

    Troubleshooting Repairs Please note Residual water will escape when the boiler or one of the following components is fitted or removed: ■ Water-filled pipework Heat exchanger ■ Circulation pumps ■ Plate heat exchanger ■ ■ Components fitted in the heating water or DHW circuit.

  • Page 44: Outside Temperature Sensor

    Troubleshooting Repairs (cont.) Outside temperature sensor 1. Open the control unit enclosure. See page 15. 2. Disconnect leads from outside temperature sensor. 4 3 2 1 Fig. 34 3. Check the sensor resistance and compare it to the curve. 4. In the event of severe deviation replace the sensor. -20 -10 0 10 20 Temperature in °C...

  • Page 45: Boiler Water Temperature Sensor

    Troubleshooting Repairs (cont.) Boiler water temperature sensor 1. Disconnect leads from boiler water temperature sensor and check the resistance. Fig. 36 2. Check the sensor resistance and compare it to the curve. 3. In the case of severe deviation, drain the boiler on the heating water side and replace the sensor.

  • Page 46: Checking The Cylinder Temperature Sensor

    Troubleshooting Repairs (cont.) Checking the cylinder temperature sensor 1. Disconnect plug from the cable harness. Fig. 38 2. Check the sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. 10 30 50 70 90 110 Temperature in °C Fig.

  • Page 47: Checking The Temperature Limiter

    Troubleshooting Repairs (cont.) 1. Disconnect leads from outlet temperature sensor 2. Check sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. Danger The outlet temperature sensor is directly 10 30 50 70 90 110 immersed in the DHW (risk of scalding).

  • Page 48: Checking The Flue Gas Temperature Sensor

    Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor 1. Disconnect leads at flue gas temperature sensor Fig. 43 2. Check the sensor resistance and compare it to the curve. 3. In the event of severe deviation replace the sensor. 10 30 50 70 90 110 Temperature in °C Fig.

  • Page 49: Checking And Cleaning The Plate Heat Exchanger

    Troubleshooting Repairs (cont.) Checking and cleaning the plate heat exchanger Note Drain the boiler on the heating water and DHW sides. Fig. 45 1. Undo plate heat exchanger (screws ) and 3. Install in reverse order using new gaskets. remove towards the front. 2.
  • Page 50 Troubleshooting Repairs (cont.) 3. Check fuse F4. Danger Incorrect or improperly fitted fuses can lead to an increased risk of fire. Insert fuses without using any force. Posi- ■ tion fuses correctly. Only use structurally identical types with ■ the specified response characteristics.

  • Page 51: Functions And Operating Conditions In Weather-Compensated Mode

    Control unit Functions and operating conditions in weather-compensated mode Heating mode In weather-compensated mode, the boiler water tem- perature is regulated subject to the outside tempera- ture. Heating curve for weather-compensated control Outside temperature in °C Fig. 47 Code for selected heating curve The setting can be made in increments of - - to 35.
  • Page 52 Control unit Functions and operating conditions in… (cont.) The cylinder loading pump is switched ON if the DHW is regulated to the set temperature via the outlet ■ boiler water temperature set cylinder temperature. temperature sensor. ≥ ■ The burner is switched ON if the boiler water temper- After the draw-off process has ended, the loading cyl- ature set cylinder temperature, and the cylinder...
  • Page 53 Connection and wiring diagram Connection and wiring diagram Fig. 48 Diverter valve stepper motor Gas pressure switch (accessories) Ignition/ionisation X ... Electrical interface Vitotrol 100 Boiler water temperature sensor § Type RT Outlet temperature sensor ■ Type UTA ■ Cylinder temperature sensor ■...
  • Page 54 Reports (cont.) Settings and test values Commis- Mainte- Mainte- Mainte- Mainte- sioning nance/ nance/ nance/ nance/serv- service service service Date Signature Gas type Static pressure mbar Supply pressure (flow pres- mbar sure) Carbon dioxide content CO Upper heating output % by ■...
  • Page 55 Specification Specification Gas condensing storage combi boiler, category II 2H3P Rated heating output range in heating mode 50/30 °C (P(50/30)) 4.7 (6.5) 5.9 (8.8) – – 80/60 °C (Pn(80/60)) 4.3 (5.9) 23.8 5.4 (8.0) 32.0 – – Rated heating output range 4.3 (5.9) 29.3 5.4 (8.0)

  • Page 56: Final Decommissioning And Disposal

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

  • Page 57: Declaration Of Conformity

    Certificates Declaration of conformity We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, declare as sole responsible body that the named product complies with the European directives and supplementary national requirements in terms of its design and operational characteristics. Using the serial number, the full Declaration of Con- formity can be found on the following website: www.viessmann.co.uk/eu-conformity...
  • Page 58 Keyword index Keyword index Boiler water temperature sensor ....... 45 Ignition................33 Burner gasket.............33 Ignition electrode............33 Burner gauze assembly..........33 Intended use..............6 Burner installation............35 Ionisation electrode............ 33 Burner removal............32 Limits CO2 content check.............30 – Flue gas values............23 Cold water connection..........8 Loading cylinder, filling..........
  • Page 60 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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