Viessmann VITODENS 050-W Installation And Service Instructions Manual
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Viessmann VITODENS 050-W Installation And Service Instructions Manual

Wall mounted gas condensing boiler for natural gas and lpg
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VIESMANN
Installation and service
instructions
for contractors
Vitodens 050-W
Type BPJD, 6.5 to 35.0 kW
Wall mounted gas condensing boiler
For natural gas and LPG
Gas Council Number: 47 819 31, 47 819 32
VITODENS 050-W
Please keep safe.
5675991 GB/en
11/2017

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Summary of Contents for Viessmann VITODENS 050-W

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 050-W Type BPJD, 6.5 to 35.0 kW Wall mounted gas condensing boiler For natural gas and LPG Gas Council Number: 47 819 31, 47 819 32 VITODENS 050-W Please keep safe. 5675991 GB/en...

  • Page 2: Safety Instructions

    Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the Details identified by the word "Note" risk of injury. contain additional information. Please note This symbol warns against the risk of material losses and envi- ronmental pollution.
  • Page 3 ■ Isolate the system from the power system. supply, e.g. by removing the separate Replace faulty components only fuse or by means of a mains isolator, with genuine Viessmann spare and check that it is no longer live. parts. ■ Safeguard the system against recon- nection.
  • Page 4 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas What to do if water escapes from the appliance Danger Escaping gas can lead to explo- Danger sions which may result in seri- If water escapes from the appli- ous injury.
  • Page 5 Safety instructions Safety instructions (cont.) Danger Danger Leaking or blocked flue sys- The simultaneous operation of tems, or an inadequate supply the boiler and appliances that of combustion air can cause life exhausts air to the outside can threatening poisoning from car- result in life threatening poison- bon monoxide in the flue gas.

  • Page 6: Table Of Contents

    Index Index Installation instructions Information Disposal of packaging..................Symbols........................ Intended use......................10 Product information....................10 Preparing for installation................... 13 Installation sequence Mounting the boiler and making connections............17 Opening the programming unit................22 Electrical connections................... 23 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance..........
  • Page 7 Index Index (cont.) Specification....................... 91 Disposal Final decommissioning and disposal..............92 Certificates Declaration of conformity..................93 Keyword index....................95...

  • Page 8: Information

    Disposal of packaging Please dispose of packaging waste in DE: Use the disposal system organ- line with statutory regulations. ised by Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of...

  • Page 9: Symbols

    Information Symbols Sym- 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 environmental pollution Live electrical area Pay particular attention. ■...

  • Page 10: Intended Use

    ■ 35 kW combi: 47 819 32 circuits and the DHW line, see page 16 onwards. Conversion for other countries The Vitodens 050-W is set up for oper- ation with a constant boiler water tem- The Vitodens 050-W may generally perature.
  • Page 11 Siting The installation room must be safe from the risk of frost. Suitable siting locations include: ■ Recreational rooms and other living spaces ■ Ancillary rooms without their own ventilation Operation of the Vitodens 050-W in wet rooms Area 2...
  • Page 12 Information Product information (cont.) The Vitodens is approved for installa- Electrical equipment in rooms contain- tion in wet rooms (e.g. bathroom or ing a bathtub or a shower must be shower rooms) (protection IP X4 D, installed in such a way that users can- splashproof).

  • Page 13: Preparing For Installation

    Preparing for installation Preparing for installation Preparing for boiler installation Dimensions and connections 58 58 Shown without fittings A Heating flow 7 22 mm E Heating return 7 22 mm F Condensate drain/safety valve B DHW 7 15 mm drain: plastic hose 7 22 mm C Gas connection 7 22 mm D Cold water 7 15 mm...
  • Page 14 Preparing for installation Preparing for installation (cont.) Minimum clearances Maintain a clearance of 700 mm in front of the Vitodens for maintenance purpo- ses. Maintenance clearances to the l.h. or r.h. side of the Vitodens are not required.
  • Page 15 Preparing for installation Preparing for installation (cont.) Fitting the wall mounting bracket Ø10 A Vitodens installation template...
  • Page 16 Preparing for installation Preparing for installation (cont.) 1. Position the supplied installation 1. Prepare the water connections. template on the wall. Flush the heating system. 2. Mark out the rawl plug holes. 2. Prepare the gas connection. 3. Drill 7 10 mm holes and insert the 3.

  • Page 17: Installation Sequence

    Installation sequence Mounting the boiler and making connections Removing the front panel and mounting the boiler 1. Undo the screws on the underside 3. Hook the boiler into the wall mount- of the boiler; do not remove them ing bracket. completely.
  • Page 18 Installation sequence Mounting the boiler and making connections (cont.) Fitting the connections on the water side Please note Protect pressure gauge hoses when welding/soldering copper pipes to the boiler. ¨ A Heating flow G ¾ D Heating return G ¾ B DHW G ½...

  • Page 19: Gas Connection

    Installation sequence Mounting the boiler and making connections (cont.) Gas connection ¨ 1. Fit the gas shut-off valve with bend 3. Carry out a tightness test. to connection A. Note Only use suitable and approved 2. Connect the gas supply to connec- leak detection agents (EN 14291) tion A.
  • Page 20 Installation sequence Mounting the boiler and making connections (cont.) Please note 4. Purge the gas line. Excessive test pressure will damage the boiler and the gas train. Max. test pressure 150 mbar (15 kPa). Where higher pressure is required for tightness tests, disconnect the boiler and the gas train from the main supply pipe...
  • Page 21 Part J of the Building Regulations and BS 5440. Flue system installation instruc- tions Connecting several Vitodens 050-W to a shared flue system Adjust the burner settings of each con- nected boiler to match the flue system.

  • Page 22: Opening The Programming Unit

    Installation sequence Mounting the boiler and making connections (cont.) Danger Ensure the flue system functions Leaking or blocked flue systems correctly. Apertures for combus- or an insufficient supply of com- tion air supply must not be able bustion air cause life threatening to be closed off.

  • Page 23: Electrical Connections

    Installation sequence Electrical connections 4 3 2 1 A Terminals on underside of appli- Information on connecting ance accessories B Outside temperature sensor When connecting accessories C Vitotrol 100 or on-site room tem- observe the separate installation perature controller with LV switch- instructions provided with them.

  • Page 24: Power Supply

    Installation sequence Electrical connections (cont.) Outside temperature sensor (accessories) 1. Fit the outside temperature sensor. 2. Connect the outside temperature sensor across terminals 3 and 4 Installation location: (underside of appliance). ■ North or north-westerly wall, 2 to 2.5 m above ground level; in multi storey buildings, in the upper half of the second floor ■...
  • Page 25 Installation sequence Electrical connections (cont.) Danger The appliance and pipework The absence of component must be connected to the equi- earthing can lead to serious potential bonding of the building. injury from electric current if an electrical fault occurs. Routing connecting cables/leads Please note When routing and securing Connecting cables/leads will be...

  • Page 26: Commissioning, Inspection, Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • • • 1. Filling the heating system..........27 • • • 2. Converting to operation with LPG........ 29 •...

  • Page 27: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Filling the heating system Please note ■ Fill water with a hardness Unsuitable fill water increases above 300 ppm must be soft- the level of deposits and corro- ened. sion and may lead to boiler ■...
  • Page 28 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Open shut-off valves B and C.

  • Page 29: Converting To Operation With Lpg

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Fill and vent the heating system using the on-site valve. System pressure 0.8 to 1.2 bar (0.08 to 0.1 MPa). The system can be filled using a separate filling point fitted at a con- venient position in the heating cir- cuit.
  • Page 30 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Gas train viewed from behind 1. Close the gas shut-off valve. 5. Start the boiler. 2. Undo screw A inside test connec- Note During commissioning, the appli- tor "IN" on the gas train, but do not ance can enter a fault state remove it.

  • Page 31: Reducing The Maximum Heating Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure. 8. Shut down the boiler, close the gas shut-off valve, remove the pressure Set value: gauge and tighten the screw in test ■ Natural gas: 20 mbar (2.0 kPa) connector A.

  • Page 32: Matching The Burner Output To The Flue System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Press MODE and simultaneously 5. Start the boiler. and hold for 3 s. Service mode is terminated. Serv- 6. Check the selected burner output ice mode also terminates automati- by measuring the gas throughput at cally after 30 min.

  • Page 33: Burner Adjustment When Connecting Multiple Flues To A Shared Flue System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Room sealed operation 7 60 mm coaxial Correction fac- Rated heating Flue pipe length (m) output (kW) ≤ 4 > 4 ≤ 8 > 8 ≤ > 12 ≤ Do not adjust ≤...
  • Page 34 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) One boiler per floor Rated heating output 24 kW Number of boilers Correction factor (adjustable Flue length a (m) value) ≤ 21 > 21 ≤ 25 ≤ 19 ≤ 13 –...
  • Page 35 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.)
  • Page 36 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Two boilers per floor Rated heating output 24 kW Number of boilers Correction factor (adjustable value) Flue length a (m) ≤15 ≤5 – > 5 ≤ 9 – > 9 ≤ 14 –...

  • Page 37: Checking The Co Content

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the CO content The Vitodens 050-W is factory-set for We recommend measuring the O , as natural gas. During commissioning or this value is unmistakable regarding maintenance, the CO and CO have to lambda (air/gas).
  • Page 38 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Operate the appliance with uncontami- nated combustion air to prevent operat- ing faults and damage. 1. Connect a flue gas analyser at flue gas port A on the boiler flue con- nection.
  • Page 39 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. To check the CO content the burner output can be adjusted man- ually. 1. Press MODE. 2. / repeatedly until "SERV" is displayed. 3. OK to confirm. "OFF" appears on the display. 4.
  • Page 40 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Set the lower heating output and check the CO content. The CO content must be between 0.3 and 0.9 % below the value of the upper heating output. 6. ■ If the CO content is within the indicated range, continue with point 8.

  • Page 41: Removing The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Removing the burner 1. Turn off the ON/OFF switch. 5. Undo the fitting from gas supply pipe F. 2. Shut off the gas supply. 6. Undo 4 screws G. Remove the 3.
  • Page 42 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove electrode B. 4. Insert and secure new burner gauze assembly D with new gas- 2. Undo 2 Torx screws. Remove ther- ket E. mal insulation ring C. Please note 3.

  • Page 43: Checking And Adjusting The Electrode

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Mount thermal insulation ring C. 6. Fit electrode B. Please note Please note Tighten screws enough Tighten screws enough to ensure the components to ensure the components do not suffer damage and do not suffer damage and will function correctly.
  • Page 44 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note The use of chemical cleaning agents is Discolouration on the heat exchanger not required. surface is a normal sign of use. It has no bearing on the function and service life of the heat exchanger.

  • Page 45: Checking The Condensate Drain And Cleaning The Trap

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the condensate drain and cleaning the trap 1. Unclip burner control unit A and 6. Refit trap B to the drain connec- remove. Protect against escaping tion. condensate. 7. Install burner control unit A. 2.

  • Page 46: Installing The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Installing the burner 1. Mount the burner. Tighten 4 screws 4. Fit the power cables of fan motor A diagonally. D, gas train E, ignition unit F and electrodes G. Please note Tighten screws enough 5.

  • Page 47: Checking The Diaphragm Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the gas connections for Please note tightness. The use of leak detection spray can result in faulty Danger operation. Escaping gas leads to a risk Leak detection spray must of explosion.

  • Page 48: Fitting The Front Panel

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the front panel 1. Hook the front panel into place. 2. Tighten screws on the underside of the boiler.

  • Page 49: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instructing the system user The system installer should hand the operating instructions to the system user and instruct the user in operating the system.

  • Page 50: Troubleshooting

    Troubleshooting Function sequence and possible faults Shown on display Action Control unit is- Increase set value sues a heat de- and ensure heat is mand drawn off Fan starts After approx. Check the fan, fan 1 min, fault F9 connecting ca- bles, fan power supply and fan control...

  • Page 51: Fault Display

    Troubleshooting Function sequence and possible faults (cont.) Burner in opera- Shuts down below Check the flue tion the set boiler water system for tight- temperature and ness (flue gas re- restarts immediate- circulation); check the gas flow pres- sure Fault display Shown on display ■...
  • Page 52 Troubleshooting Fault display (cont.) Fault code System character- Cause Measures displayed istics No DHW heating Short circuit, outlet Check the sensor (see temperature sen- page 60). Burner blocked Short circuit, flow Check connections and sensor lead; replace sensor if re- quired.
  • Page 53 Troubleshooting Fault display (cont.) Fault code System character- Cause Measures displayed istics Burner in a fault Flame signal is al- Check ionisation elec- state ready present at trode and connecting ca- burner start. ble. Press "Reset" (see page 54). Burner in a fault No flame signal.
  • Page 54 Troubleshooting Fault display (cont.) Fault code System character- Cause Measures displayed istics Burner blocked Burner control unit Check ignition electrodes fault and connecting cables. Check whether a strong interference (EMC) field exists near the appliance. Press "Reset" (see page 54). Replace control unit if fault persists.
  • Page 55 Troubleshooting (cont.) Please note Water ingress can result in dam- Residual water will escape when age to other components. the boiler or one of the following components is fitted or Protect the following compo- removed: nents against ingress of water: ■...

  • Page 56: Repairs

    Troubleshooting Repairs Removing the front panel 1. Undo the screws on the underside 2. Remove front panel. of the boiler. Do not remove.

  • Page 57: Outside Temperature Sensor

    Troubleshooting Repairs (cont.) Outside temperature sensor 4 3 2 1 1. Disconnect the leads from outside temperature sensor A. -20 -10 0 10 20 Temperature in °C Sensor type: NTC 10 kΩ 2. Check the sensor resistance. Com- 3. In the event of severe deviation pare with the curve.

  • Page 58: Boiler Water Temperature Sensor

    Troubleshooting Repairs (cont.) Boiler water temperature sensor 1. Disconnect the leads from boiler water temperature sensor A. Measure the resistance. 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ 2. Check sensor resistance and com- pare it to the curve.
  • Page 59 Troubleshooting Repairs (cont.) 3. In the case of severe deviation, drain the boiler on the heating water side and replace the sensor. Danger The boiler water tempera- ture sensor is directly immersed in the heating water (risk of scalding). Drain the boiler before replacing the sensor.
  • Page 60 Troubleshooting Repairs (cont.) Checking the outlet temperature sensor 1. Disconnect leads from outlet tem- perature sensor A. 2. Check sensor resistance and com- pare it to the curve. 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ 3.
  • Page 61 Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor 1. Disconnect leads at flue gas tem- perature sensor A. 2. Check sensor resistance and com- pare it to the curve. 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ 3.

  • Page 62: Replacing The Flow Limiter

    Troubleshooting Repairs (cont.) Replacing the flow limiter 1. Drain the boiler on the DHW side. 2. Pull off spring clip A. 3. Remove flow sensor B. 4. Remove faulty flow limiter C. 5. Check fitted strainer for dirt/contam- ination. Clean strainer if required. 6.
  • Page 63 Troubleshooting Repairs (cont.) Replacing the flow sensor 01. Drain the boiler on the DHW side. 02. Disconnect the leads from faulty flow sensor A. 03. Pull off spring clip B. 04. Remove casing C with flow sen- sor A. 05. Pull off spring clip D and remove faulty flow sensor A.
  • Page 64 Troubleshooting Repairs (cont.) Checking or replacing the plate heat exchanger C Heating water return F Cold water D Heating water flow E DHW 1. Shut off and drain the boiler on the 2. Undo screw A on the plate heat heating water and DHW sides.
  • Page 65 Troubleshooting Repairs (cont.) Note 5. Install in reverse order using new During and after removal, small gaskets. amounts of water may trickle from the plate heat exchanger. Note During installation, ensure the fixing 3. Check the connections on the DHW holes are aligned and the gaskets side for scaling;...
  • Page 66 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. Position fuses correctly. ■ Only use structurally identical types with the specified response characteristics.

  • Page 67: Changing The Gas Type

    Changing the gas type Converting from LPG to natural gas Removing the gas restrictor 1. Disconnect cable from gas train A. 7. Mount gas train A with new gas gasket F. 2. Undo union nut B and remove gas gasket. Please note Tighten screws enough 3.
  • Page 68 Changing the gas type Converting from LPG to natural gas (cont.) 9. Start the boiler and check for leaks. Please note The use of leak detection Danger spray can result in faulty Escaping gas leads to a risk operation. of explosion. Leak detection spray must Check all gas equipment for not come into contact with...

  • Page 69: Control Unit

    Control unit Functions and operating conditions in weather-compensated mode If an outside temperature sensor is con- The heating curve is selected at the nected to the control unit, the boiler control unit using a code. In the deliv- water temperature is regulated accord- ered condition, the heating curve with ing to the outside temperature.
  • Page 70 Control unit Functions and operating conditions in… (cont.) Frost protection function The frost protection function requires an outside temperature sensor to be connected. Frost protection function is active at outside temperatures of < 5 °C. The burner starts and the boiler water temperature is held at 20 °C.

  • Page 71: Designs

    Designs Connection and wiring diagrams Overview Power supply ON/OFF switch X ... Electrical interface Main PCB in control unit enclosure on side panel Programming unit...
  • Page 72 Designs Connection and wiring diagrams (cont.) Programming unit Power supply Room temperature controller (accessories) Gas pressure switch (accessories) Time switch or wireless receiver Outside temperature sensor (accessories) (accessories)
  • Page 73 Designs Connection and wiring diagrams (cont.) Jumper; remove when connecting Programming unit room temperature controller ON/OFF switch Main PCB X ... Electrical interface...
  • Page 74 Designs Connection and wiring diagrams (cont.) Control unit Programming unit connection...
  • Page 75 Designs Connection and wiring diagrams (cont.) Flow sensor Flue gas temperature sensor Diverter valve stepper motor Circulation pump 230 V~ sÖ Ionisation electrode Gas solenoid valve Main PCB Power supply fÖ Switching mode power supply Temperature limiter Programming unit Ignition PWM Circulation pump control Fan motor 230 V~ a-Ö...

  • Page 76: Parts Lists

    Parts lists Overview of assemblies The following details are required when ordering parts: ■ Serial no. (see type plate A) ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list)
  • Page 77 Parts lists Overview of assemblies (cont.) A Type plate D Hydraulic assembly B Casing assembly E Control unit assembly C Heat cell assembly F Miscellaneous assembly...

  • Page 78: Casing Assembly

    Parts lists Casing assembly 0004 0002 0003 0001 0002 0003 Pos. Part 0001 Front panel 0002 Profiled seal 0003 Viessmann logo 0004 Wall mounting bracket...
  • Page 79 Parts lists Casing assembly (cont.)

  • Page 80: Heat Cell Assembly

    Parts lists Heat cell assembly 0005 0001 0001 0003 0002 0003 0014 0004 0014 0015 0014 0006 0004 0013 0013 0014 0012 0015 0018 0011 0007 0010 0011 0008 0009 0016 0017...
  • Page 81 Parts lists Heat cell assembly (cont.) Pos. Part 0001 Gasket DN 60 0002 Boiler flue connection 0003 Boiler flue connection plug 0004 Flue gasket 0005 Flue gas temperature sensor 0006 Heat exchanger 0007 Condensate hose 0008 Splash trap 0009 Tee connector 7 19 0010 Gas connection 0011...

  • Page 82: Burner Assembly

    Parts lists Burner assembly 0004 0003 0002 0001 0001 0004 0006 0006 0008 0007 0006 0005 0004 0012 0008 0010 0008 0012 0009 0012 0012 0011 0013 0011...
  • Page 83 Parts lists Burner assembly (cont.) Pos. Part 0001 Burner gasket 7 187 0002 Thermal insulation ring 0003 Cylinder burner gauze assembly 0004 Burner gauze assembly gasket 0005 Burner door 0006 Gasket, ionisation electrode (5 pce) 0007 Ignition/ionisation electrode 0008 Gasket, burner door flange 0009 Radial fan NRG 118 0010...

  • Page 84: Hydraulic Assembly

    Parts lists Hydraulic assembly 0002 0001 0003 0003 0003 0009 0007 0012 0010 0004 0005 0010 0007 0009 0010 0009 0011 0016 0007 0009 0009 0010 0012 0007 0007 0013 0015 0018 0007 0006 0018 0019 0018 0018 0017 0008 0008 0014...
  • Page 85 Parts lists Hydraulic assembly (cont.) Pos. Part 0001 Diaphragm expansion vessel CRI 8 0002 Padding profile MAG (diaphragm expansion vessel) 0003 Gasket A 10 x 15 x 1.5 (5 pce) 0004 Connection line MAG (diaphragm expansion vessel) G 3/8 0005 Connection elbow HR (heating return), brass 0006 Profile hose HR (heating return)

  • Page 86: Grundfos Hydraulic Assembly

    Parts lists Grundfos hydraulic assembly 0002 0003 0006 0006 0004 0002 0003 0005 0019 0004 0006 0001 0005 0019 0009 0011 0012 0030 0004 0015 0018 0005 0020 0028 0010 0010 0011 0015 0010 0010 0011 0015 0018 0020 0012 0010 0010 0010...
  • Page 87 Parts lists Grundfos hydraulic assembly (cont.) Pos. Part 0001 Flow casing EU1 0002 Temperature sensor 0003 Expansion vessel 0004 O-ring 19.8 x 3.6 (5 pce) 0005 O-ring 16 x 3 (5 pce) 0006 Clip 7 8, narrow (5 pce) 0008 Plate heat exchanger 0009 Circulation pump motor...

  • Page 88: Control Unit Assembly

    Parts lists Control unit assembly 0002 0010 0001 0003 0004 0005 0006 0007 0008 0009...
  • Page 89 Parts lists Control unit assembly (cont.) Pos. Part 0001 Programming unit 0002 Burner control unit 0003 Cable harness X1/X17/stepper motor 0004 Cable harness 100/35/54/ion 0005 Cable harness, connecting cable X21/GFA/programming unit 0006 OT/ATS (outside temperature sensor) lead 0007 Heating circuit pump connecting cable 20 0008 PWM bus cable 0009...

  • Page 90: Miscellaneous Assembly

    Parts lists Miscellaneous assembly 0001 0004 0002 0005 0003 Pos. Part 0001 Touch-up spray paint, white, 150 ml can 0002 Touch-up paint stick, white 0003 Special grease 0004 Operating instructions 0005 Installation and service instructions...

  • Page 91: Specification

    Specification Specification Gas boiler, category II 2H3P Rated heating output range in heating mode 50/30 °C 6.5 – 24 8.8 – 33 80/60 °C 5.9 – 22.1 8.0 – 30.3 Rated heating output range 5.9 – 29 8.0 – 35 For DHW heating Rated heating input range 6.1 –...

  • Page 92: Disposal

    Disposal Final decommissioning and disposal Viessmann products can be recycled. All components must be disposed of Components and substances from the correctly. system are not part of ordinary house- hold waste. For decommissioning the system, iso- late the system from the power supply and allow components to cool down where appropriate.

  • Page 93: Certificates

    Certificates Declaration of conformity Vitodens 050-W, type BPJD We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, declare as sole responsible body that the named product complies with the provisions of the follow- ing directives and regulations: 92/42/EEC Efficiency Directive...
  • Page 94 Certificates Declaration of conformity (cont.) Manufacturer's declaration This product meets the requirements of the Efficiency Directive (92/42/EEC) for condensing boilers.

  • Page 95: Keyword Index

    Keyword index Keyword index Boiler water temperature sensor ..58 Heat exchanger cleaning....43 Burner gasket........41 Heating curve........69 Burner gauze assembly..... 41 Burner installation......46 Burner removal........41 Ignition..........43 Ignition electrode........43 Ionisation electrode......43 Combustion chamber cleaning..43 Commissioning........27 Condensate........20 Max.
  • Page 96 Keyword index (cont.) Ventilation air pipe......21 Wall mounting........15 Weather-compensated mode.....69 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com...

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