Viessmann Vitoladens 300-W Service Instructions For Contractors
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Viessmann Vitoladens 300-W Service Instructions For Contractors

Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil din 51603-el-1 with integral boiler control unit
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VIESMANN
Service instructions
for contractors
Vitoladens 300-W
Type VP3B, 12.9/19.3 kW, 16.1/23.5 kW
Wall mounted oil fired condensing boiler
for the combustion of low sulphur fuel oil DIN 51603-EL-1
with integral boiler control unit
For applicability, see the last page
VITOLADENS 300-W
Please keep safe.
5692 799 GB
2/2009

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  • Page 1 VIESMANN Service instructions for contractors Vitoladens 300-W Type VP3B, 12.9/19.3 kW, 16.1/23.5 kW Wall mounted oil fired condensing boiler for the combustion of low sulphur fuel oil DIN 51603-EL-1 with integral boiler control unit For applicability, see the last page VITOLADENS 300-W Please keep safe.
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ all current safety regulations as defined by DIN, EN, DVGW, TRGI, Danger TRF, VDE and all locally applicable This symbol warns against the standards, risk of injury.
  • Page 3 Please note and may invalidate our warranty. Electronic modules can be dam- For replacements, use only orig- aged by electro-static dis- inal spare parts from Viessmann charges. or those which are approved by Touch earthed objects, such as Viessmann. heating or water pipes, to dis-...
  • Page 4 Index Index Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... Further details regarding the individual steps............Codes Code 1........................36 Code 2........................39 Resetting codes to their delivered condition............55 Service scans Service level overview ..................56 Temperatures, boiler coding card and brief scans ..........56 Checking outputs (relay test)................
  • Page 5 Index Index (cont.) Keyword index....................104...

  • Page 6: Table Of Contents

    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..........• 2. Venting the boiler............• 3. Venting the heating system........... •...
  • Page 7 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • • 22. Checking the burner (recording values on page 100 of the commissioning/service report) • • • 23. Checking the function of safety valves •...

  • Page 8: Filling The Heating System

    ■ Soften fill water with hardness exceeding 3.0 mol/m , e.g. using a small softening system for heating water (see Viessmann Vitoset price list). ■ An antifreeze additive suitable for heating systems can be mixed with the fill water. The antifreeze manufacturer must verify its suitability.

  • Page 9: Venting The Boiler

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the heat- ing water side. 2. Connect the drain hose between top valve B and a drain outlet. 3. Open valves A and B and vent using mains pressure until no more air noise is audible.

  • Page 10: Filling The Siphon With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Activate the venting program via cod- 3. Check the system pressure. ing "2F:1". Note To call up code 1 and for setting the coding address, see page 36. For function and sequence of the venting program, see page 83.

  • Page 11: Setting The Time And Date (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Setting the time and date (if required) Note Date (see step 2) ■ During commissioning, or after a pro- longed time out of use, it may be nec- Datum essary to reset the time and date, if the time flashes in the display.

  • Page 12: Changing The Language At The Control Unit

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the language at the control unit Note Press the following keys: When the unit is first taken into operation 1. c "Heizkreis wählen" (select the display is in German (default lan- guage setting): heating circuit) is displayed.
  • Page 13 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fan starts after no Fault Check the oil pre- more than heater, fan, cables 10 min. and plug-in con- Green LED on nectors ignition trans- (the oil preheater former flashes. has not switched through;...

  • Page 14: Adjusting The Standard Burner Settings

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner in opera- tion. The green LED on the ignition trans- former is perma- nently on (a flame is recognised). For further details regarding faults, see page 63. Adjusting the standard burner settings Standard burner settings Note Check that the service instructions are valid for the relevant burner (see applicability...
  • Page 15 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Rated output 12.9/19.3 16.1/23.5 Oil pressure 8.0-10.5 14.0-17.5 9.0-13.5 16.0-18.5 approx. Max. permissible 0.35 0.35 0.35 0.35 vacuum in the oil feed line Oil throughput kg/h 1.05 1.58 1.53 1.92 approx.

  • Page 16: Adjusting The Oil Pressure And Checking The Vacuum

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the oil pressure and checking the vacuum 1. Insert the pressure gauge (range 0 - 25 bar) into test port "P" A and the vacuum gauge (range 0 - 1 bar) into test port "V"...

  • Page 17: Adjusting The Air Volume (Static Burner Pressure)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Press K and d simultaneously for 6. Check the actual emission values after adjusting the oil pressure. approx. 2 s. "Relay test" is shown in the dis- 7. Select burner stage 2 with a. play.

  • Page 18: Cleaning The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 9. Seal test connector A again with the Note Do not seal the connector next to test previously removed plug. connector A. Cleaning the burner 1. Undo nuts, remove the lid with mixer 3.

  • Page 19: Replacing The Nozzle And Checking Or Adjusting The Ignition Electrodes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Replacing the nozzle and checking or adjusting the ignition elec- trodes 2.5 mm 1. Undo nozzle E whilst holding the oil preheater. Prevent the formation of bubbles.
  • Page 20 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Insert a new LE nozzle E (whilst holding the oil preheater). Select the nozzle in accordance with the details on page 14. Please note Only use nozzles marked "V" (on the hexagon) (see Fig.).

  • Page 21: Cleaning And Replacing The Oil Pump Filter, If Required

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning and replacing the oil pump filter, if required Oil pump; make: Danfoss, type BFP A Filter plug B O-ring (replace) C Filter (replace)

  • Page 22: Checking The Heat Exchanger For Contamination

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the heat exchanger for contamination 1. Pull plugs aCA and a-Ö from the fan. 3. Undo four nuts from burner B and Remove the cables from the cable remove the burner. clip on the l.h.

  • Page 23: Cleaning The Heat Exchanger

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Check for heat exchanger contami- nation. (if contaminated, continue with the following chapter). Cleaning the heat exchanger Please note 1. Pull condensate drain hose C from To prevent damage to the heat the neutralising system and lead it exchanger, into a suitable vessel.

  • Page 24: Checking The Condensate Drain And Cleaning The Siphon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Please note 3. Remove dirt from the heat exchanger To prevent damage, gaps with a vacuum cleaner with cover the control unit. angled nozzle E (accessories). Danger 4. Thoroughly flush the combustion Cleaning work may lead to chamber with water.

  • Page 25: Checking The Active Charcoal Filter (Accessories)

    ■ For the selection of an appropriate design, see the following diagrams. ■ For coding steps, see page 36. System version 1 One heating circuit without mixer A1 (with/without DHW heating) 1 Vitoladens 300-W 4 Cylinder temperature sensor 2 Outside temperature sensor 5 Heating circuit without mixer A1...
  • Page 26 Note The volume flow of the heating circuit without mixer must be at least 30% greater than the volume flow of the heating circuit with mixer. 1 Vitoladens 300-W 8 Flow temperature sensor M2 2 Outside temperature sensor 9 Heating circuit pump M2...
  • Page 27 (cont.) System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 with system separation (with/without DHW heating) 1 Vitoladens 300-W 8 Flow temperature sensor M2 2 Outside temperature sensor 9 Heating circuit pump M2...
  • Page 28 System version 4 One heating circuit without mixer A1 with a separate heating circuit pump and one heating circuit with mixer M2 (with/without DHW heating) 1 Vitoladens 300-W 8 Temperature limiter for limiting the 2 Outside temperature sensor maximum temperature of underfloor...
  • Page 29 One heating circuit with mixer M1 (with Vitotronic 200-H), one heating circuit with mixer M2 (with extension kit) and low loss header (with/without DHW heat- ing) 1 Vitoladens 300-W qQ Flow temperature sensor M2 2 Outside temperature sensor qW Heating circuit pump M2...

  • Page 30: Adjusting The Heating Curves (Only For Weather-Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the heating curves (only for weather-compensated control units) The heating curves illustrate the relation- The room temperature, again, depends ship between the outside temperature on the boiler water or the flow tempera- and the boiler water or flow tempera- ture.
  • Page 31 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the slope and level Adjusting the set room temperature Standard room temperature Outside temperature in °C Example 1: Adjustment of standard room A Changing the slope temperature from 20 to 26 °C B Changing the level (vertical parallel A Boiler water temperature or flow offset of the heating curve)

  • Page 32: Linking The Control Unit To The Lon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) C Set room temperature in °C 5. Adjust the set day temperature with rotary selector "ts". D Heating circuit pump "OFF" The value will be automatically accep- E Heating circuit pump "ON" ted after approx.
  • Page 33 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note In the same LON system, the same num- ber cannot be allocated twice. Only one Vitotronic may be program- med as fault manager. Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom Subscriber no.

  • Page 34: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Carrying out a subscriber check Communication with the system devices connected to the fault manager is tested with a subscriber check. Preconditions: 2. a/b for the required sub- ■ The control unit must be programmed scriber.

  • Page 35: Scanning And Resetting The "Service" Display

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Scanning and resetting the "Service" display The red fault indicator flashes when the limits set via coding address "21" and "23" have been reached. "Service" flashes in the programming unit display. Note Set coding address "24:1"...
  • Page 36 Codes Code 1 Calling up code 1 Note 4. a/b for the selected value Codes are displayed as plain text. Codes that are irrelevant (due to the heating 5. d to confirm; the display system equipment level or the setting of briefly shows "accep- other codes) will not be displayed.
  • Page 37 Codes Code 1 (cont.) Overview Coding Coding in the delivered condition Possible change System design 00 :1 System design 1: 00 :2 System design 1: 1 heating circuit without 1 heating circuit without mixer A1, without DHW mixer A1, with DHW heat- heating 00 :3 System design 5:...
  • Page 38 Codes Code 1 (cont.) Coding in the delivered condition Possible change Subscriber no. 77:1 LON subscriber number 77:2 LON subscriber number, adjustable from 1 to 99: 77:99 1 - 4 = Boiler 5 = Cascade 10 - ... = Vitotronic 200-H 99 = Vitocom Note Allocate each number...
  • Page 39 Codes Code 2 Calling up code 2 Note 5. a/b for the selected value. Codes that are irrelevant (due to the heating system equipment level or the 6. d to confirm; the display setting of other codes) will not be dis- briefly shows "accep- played.
  • Page 40 Codes Code 2 (cont.) Note Heating systems with one heating circuit without mixer and one heating circuit with mixer: Initially, the possible coding addresses "A0" to "Fb" for the heating circuit without mixer A1 are scanned; then the coding addresses for the heating circuit with mixer M2 are scanned.
  • Page 41 Codes Code 2 (cont.) Coding in the delivered condition Possible change 23:0 No time interval for 23:1 Interval adjustable from 1 burner service to 24 months 23:24 24:0 No "Service" display 24:1 "Service" display (the address is automatically set and must be manually reset after a service has been carried out) 26:0...
  • Page 42 Codes Code 2 (cont.) Code Internal Heating cir- Heating circuit Circulation pump circula- cuit pump pump for cylinder heat- tion pump Heating cir- Heating circuit cuit without with mixer mixer Control Control funct. Control funct. Control funct. funct. Control Control funct. Control funct.
  • Page 43 Codes Code 2 (cont.) Code Internal cir- Heating cir- Heating cir- Circulation pump for culation cuit pump cuit pump cylinder heating pump Heating cir- Heating cir- cuit without cuit with mixer mixer Control Control funct. Control funct. Control funct. funct. Control Control funct.
  • Page 44 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler/burner 52:0 Without flow temperature 52:1 With flow temperature sen- sensor for low loss sor for low loss header header (automatic setting on rec- ognition) 54:0 Without solar control unit 54:1 With a Vitosolic 100 54:2 With a Vitosolic 200 (auto-...
  • Page 45 Possible change 65:... Information regarding the 65:0 Without diverter valve type of diverter valve (not 65:1 Diverter valve by adjustable) Viessmann 65:2 Diverter valve by Wilo 65:3 Diverter valve by Grundfos 67:40 In conjunction with the 67:0 Set DHW value adjustable Vitosolic solar control from 0 to 60 °C...
  • Page 46 Codes Code 2 (cont.) Coding in the delivered condition Possible change 77 :1 LON subscriber number 77 :2 LON subscriber number, adjustable from 1 to 99: 77 :99 1 - 4 = Boiler 5 = Cascade 10 - ... = Vitotronic 200-H 99 = Vitocom Note Allocate each number...
  • Page 47 97:2 The control unit sends the connected to the control outside temperature to the unit is utilised internally Vitotronic 200-H 98:1 Viessmann system num- 98:1 System number adjustable ber (in conjunction with from 1 to 5 monitoring several sys- 98:5...
  • Page 48 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A0:0 Without remote control A0:1 With Vitotrol 200 (auto- matic recognition) A0:2 With Vitotrol 300 (auto- matic recognition) A3:2 Outside temperature A3:-9 Heating circuit pump ON/ below 1 °C: Heating cir- OFF (see the following cuit pump ON...
  • Page 49 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A4:0 With frost protection A4:1 No frost protection, adjust- ment only possible if cod- ing address "A3: -9" has been selected. Note If a value is selected below 1 °C, there is a risk of pipes outside the thermal enve- lope of the building freezing...
  • Page 50 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A6:36 Extended economy mode A6:5 Extended economy mode disabled is enabled, i.e. the burner A6:35 and heating circuit pump will be switched OFF and the mixer will be closed at a variable value that is adjustable between 5 and 35 °C plus 1 °C.
  • Page 51 Codes Code 2 (cont.) Coding in the delivered condition Possible change b0:0 With remote control: b0:1 Heating mode: weather- Heating mode/reduced compensated mode: weather-compen- Reduc. mode: with room temperature hook-up sated b0:2 Heating mode: with room temperature hook-up Reduc. mode: weather- compensated b0:3 Heating mode/reduced...
  • Page 52 Codes Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit C5:20 Electronic minimum flow C5:1 Minimum temperature limit temperature limit in adjustable from 1 to 127 °C standard mode 20 °C C5:127 (limited by boiler-specific parameters) C6:74 Electronic maximum flow...
  • Page 53 Codes Code 2 (cont.) Coding in the delivered condition Possible change E7:30 Minimum speed of the E7:0 Minimum speed adjustable variable speed pump from 0 to 100 % of max. 30 % of max. speed E7:100 speed E8:1 Minimum speed subject E8:0 Speed subject to the set- to the setting in coding...
  • Page 54 Codes Code 2 (cont.) Coding in the delivered condition Possible change Burner F8:-5 For operation in reduced F8:+10 Temperature limit for can- room temperature mode, celling reduced mode, the set room temperature F8:-60 adjustable from +10 to -60 will be raised (up to the °C temperature limit set by F8:-61...
  • Page 55 Codes Resetting codes to their delivered condition 3. d Press the following keys: to confirm 1. L + G simultaneously for 4. a/b approx. 2 s. to select "Standard set- ting? No". 2. e "Standard setting? Yes" appears.
  • Page 56 Service scans Service level overview Function Key combination Exit Page Temperatures, boiler cod- Press K and G simulta- Press d ing card and brief scans neously for approx. 2 s Press K and d simultane- Press d Relay test ously for approx. 2 s Adjusting the air volume Press K and F simulta- Press K and...
  • Page 57 Service scans Temperatures, boiler coding card and brief… (cont.) The following values can be scanned, subject to the system equipment level: Display screens Explanation ■ Slope A1 – level A1 ■ Slope M2 – level M2 ■ Outd.temp.damped The adjusted outside temperature can be reset to the current outside temperature with e.
  • Page 58 Service scans Temperatures, boiler coding card and brief… (cont.) Display screens Brief scan 0: no 0: no External 0 to 10 V hook-up external external Display in % demand blocking 0: no external hook-up 1: exter- 1: exter- nal block- demand Number of LON sub- Check...
  • Page 59 Service scans Checking outputs (relay test) (cont.) Subject to the actual equipment level, the following relay outputs can be con- trolled: Display screens Explanation Burner stage 1 ON Burner stage 1 Burner stage 1+ 2 ON Burner stage 2 Intern.pump ON Int.
  • Page 60 Service scans Scanning operating conditions and sensors (cont.) Displays screen Explanation Normal Set value room temp., ... °C Room temperature, ... °C Actual value Ext.room t.setpt., ... °C With external hook-up DHW temp., ... °C Actual DHW temperature Com.supply temp., ... °C Actual value, only with low loss header Hours run Burner, ...h...
  • Page 61 Troubleshooting Fault display Fault display layout Outside temp. sensor RESET ­ A Fault display C Fault number B Fault symbol D Fault code The red fault indicator flashes for every ■ Flow sensor fault. ■ Boiler sensor A fault in the burner control unit causes ■...
  • Page 62 Troubleshooting Fault display (cont.) 3. d All fault messages are acknowledged simultane- ously, the fault display will be deleted and the red fault indi- cator continues to flash. Calling up acknowledged fault messages Press the following keys: 2. a/b for the acknowledged fault. 1.
  • Page 63 Troubleshooting Fault codes Fault code System characteris- Cause Measures on the dis- tics play Control mode Maintenance Service the equipment. After the service, set cod- ing address "24:0". Controls as if the out- Short circuit, out- Check the outside tem- side temperature side temperature perature sensor (see...
  • Page 64 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Control mode Short circuit, col- Check the sensor at the lector temperature Vitosolic. sensor; connects to the Vitosolic at Control mode Short circuit, cylin- Check the sensor at the der temperature Vitosolic.
  • Page 65 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Control mode as per Communication Check connections and delivered condition fault, programming replace the programming unit (internal) unit if required. Controls as if the out- Internal fault Replace the control unit.
  • Page 66 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Control mode, max. Communication Check the setting of cod- pump speed fault, variable ing address "30". speed internal cir- culation pump Control mode, max. Communication Check the setting of cod- pump speed fault, external vari-...
  • Page 67 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Control mode without Lead break, room Check the room tempera- room influence temperature sen- ture sensor, heating cir- sor, heating circuit cuit with mixer M2 and the with mixer M2 remote control DIP switch settings (see page 88).
  • Page 68 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Burner in a fault The flame is not Check oil supply, ignition state established at the electrodes, electrode end of the safety gaps and connecting time cables, check nozzle, check sole-...
  • Page 69 Troubleshooting Fault codes (cont.) Fault code System characteris- Cause Measures on the dis- tics play Burner in a fault Fan speed devia- Check fan, check con- state tion necting cables to fan. Press "E". Burner in a fault 3 x flame blow-off Check oil supply, check state during operation...
  • Page 70 Troubleshooting Repairs (cont.) 1. Pull plug "X3" from the control unit. 2. Test the resistance of the outside temperature sensor across terminals "X3.1" and "X3.2" on the disconnec- ted plug and compare it with the curve. 3. Where actual values strongly deviate from the curve values, disconnect the wires at the sensor and repeat test immediately at the sensor.
  • Page 71 Troubleshooting Repairs (cont.) Checking the boiler water temperature sensor, the cylinder tem- perature sensor or the flow temperature sensor for the low loss header 1. ■ Boiler water temperature sensor: Pull the leads from boiler water temperature sensor A and check the resistance.
  • Page 72 Troubleshooting Repairs (cont.) 2. Check the sensor resistance and compare the actual values with the curve. 3. Replace the sensor in case of severe deviation. Danger The boiler water temperature sensor is immersed in the heating water (risk of scald- 10 30 50 70 90 110 ing).
  • Page 73 Troubleshooting Repairs (cont.) 3. Replace the sensor in case of severe deviation. 10 30 50 70 90 110 Temperature in °C Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx.
  • Page 74 Troubleshooting Repairs (cont.) 1. Pull the leads from temperature lim- iter A. 2. Check the continuity of the tempera- ture limiter with a multimeter. 3. Remove the faulty temperature lim- iter. 4. Install a new temperature limiter. 5. After commissioning, press reset but- ton "E"...
  • Page 75 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch OFF the power. 3. Remove cover A. 2. Release the side closures and pivot 4. Check fuse F1 (see connection and the control unit down. wiring diagram). Extension kit for heating circuit with mixer Checking the rotational direction of 1.
  • Page 76 Troubleshooting Repairs (cont.) 2. Note the rotational direction of the Mixer installation instructions mixer motor during its self-test. Then set the mixer manually to "Open" again. Note The flow temperature sensor must now capture a higher temperature. If the temperature drops, either the motor is turning in the wrong direction or the mixer set is incorrectly fitted.
  • Page 77 Troubleshooting Repairs (cont.) Checking the Vitotronic 200-H (accessories) The Vitotronic 200-H is connected to the control unit via the LON system. To test the connection, carry out a subscriber check at the boiler control unit (see page 32).
  • Page 78 Function description Control unit Control and display elements Boiler water temperature °C RESET ­ A Pressure gauge D ON indicator (green) B Fault indicator (red) E Reset button C Optolink interface F User interface only in conjunction with the diagnos- G Rotary selector for standard room tic adaptor (accessory) and Vitosoft temperature...
  • Page 79 Function description Control unit (cont.) DHW heating Boosting DHW heating The burner, the circulation pump and the The booster heating function is activated three-way valve are started or changed if a switching period is selected for the over, if the cylinder temperature lies 2.5 fourth time phase.
  • Page 80 Function description Control unit (cont.) The internal extension is factory-fitted into the control unit casing. The following functions are connected to the relay out- puts: sÖ Internal circulation pump aXA Oil preheater Extensions for external connections (accessories) External extension H1 The external extension is connected to Circulation pump for cylinder heat- the boiler control unit via the KM BUS.
  • Page 81 Function description Extensions for external connections… (cont.) aVD ■ External blocking (terminals 1 - 2) (terminals 2 - 3) ■ External heating program ■ External demand changeover (terminals 1 - 2) (only for weather-compensated operation) The allocation of the function "External heating program changeover"...
  • Page 82 Function description Extensions for external connections… (cont.) aVD ■ External blocking (terminals 1 - 2) (terminals 2 - 3) ■ External heating program ■ External demand changeover (terminals 1 - 2) (only for weather-compensated operation) The allocation of the function "External heating program changeover"...
  • Page 83 Function description Control functions (cont.) Heating program changeover Coding No heating program changeover F2:0 Duration of the heating program changeover 1 to 12 hours F2:1 to F2:12 The heating program changeover stays enabled for as long as the contact remains closed, but at least as long as the duration selected in coding address "F2".
  • Page 84 Function description Control functions (cont.) Fill program In the delivered condition, the diverter Filling with the control unit switched valve is set to its central position, ena- bling the system to be filled completely. After switching ON the control unit, the If the system is to be filled with the control diverter valve no longer goes into its cen- unit switched ON, the diverter valve will...
  • Page 85 Function description Control functions (cont.) Temperature profile 2: (ZV parquet and flooring technology) code "F1:2" Days Temperature profile 3: Code "F1:3" Days Temperature profile 4: Code "F1:4" Days Temperature profile 5: Code "F1:5" Days...
  • Page 86 Function description Control functions (cont.) Temperature profile 6: Code "F1:6" Days Temperature profile 7: Code "F1:15" Days Raising the reduced room temperature During operation with reduced room The outside temperature limits for the temperature, the reduced set room tem- start and end of the temperature raising perature can be automatically raised can be adjusted via coding addresses subject to the outside temperature.
  • Page 87 Function description Control functions (cont.) Example using the settings in the delivered condition -5 -10 -15 Outside temp. in °C A Heating curve for operation with B Heating curve for operation with standard room temperature reduced room temperature Reducing the heat-up time During the transition from operation with The value and duration of the additional reduced room temperature to operation...
  • Page 88 Function description Control functions (cont.) Example using the settings in the delivered condition Time in h A Start of operation with standard D Duration of operation with raised set room temperature boiler water or flow temperature in B Set boiler water or flow temperature accordance with coding address in accordance with the selected "Fb":...
  • Page 89 Function description Remote control DIP switches (cont.) Remote control DIP switch setting The remote control affects the heating cir- cuit without mixer A1 1 2 3 4 The remote control affects the heating cir- cuit with mixer M2 1 2 3 4 When connecting a separate room tem- perature sensor, set DIP switch "3"...
  • Page 90 Designs Connection and wiring diagram – internal connections X ... Electrical interfaces Ignition unit § Boiler water temperature sensor a-Ö Flue gas temperature sensor a-ÖA Fan control dÖ Stepper motor for diverter valve Air pressure switch Temperature limiter...
  • Page 91 Designs Connection and wiring diagram – external connections Main PCB Power supply unit...
  • Page 92 Designs Connection and wiring diagram – external… (cont.) Optolink X ... Electrical interfaces Burner control unit Outside temperature sensor Programming unit Flow temperature sensor, low loss Coding card header Connection adaptor Cylinder temperature sensor LON communication module sÖ Internal circulation pump Internal extension H3 fÖ...
  • Page 93 Parts lists Parts lists Spare parts information 034 Air vent valve Quote the part and serial no. (see type 035 Siphon plate) and the item number of the 036 Condensate hose required part (as per this parts list). 037 Front panel with pos. 047 Obtain standard parts from your local 038 Boiler connection grommets supplier.
  • Page 94 Parts lists Parts lists (cont.) 112 Compression spring and washer 062 Active charcoal filter maintenance 115 Cap lid 116 Grommet 065 Solenoid valve core 120 Fuse holder 069 Oil filter changeover set 070 Oil filter insert; Microtec Wearing parts 097 Cable harness X8/X9 001 Flame tube 098 Vitoladens terminal strip 006 Nozzle...
  • Page 95 Parts lists Parts lists (cont.)
  • Page 96 Parts lists Parts lists (cont.)
  • Page 97 Parts lists Parts lists (cont.)
  • Page 98 Parts lists Parts lists (cont.) 034 116...
  • Page 99 Safety components Replacing safety components Afecor, the European Control Manufacturers' Association, requires all manufacturers of heating equipment to advise that safety components be replaced after a certain service life, subject to their design. Safety components Service life subject to CEN standard design Cycles Years...
  • Page 100 Commissioning/service reports Commissioning/service reports Setting and test values Commission- Maintenance/ service Oil pressure Stage 1 actual Stage 2 actual Vacuum actual after mainte- nance Carbon dioxide content CO Stage 1 actual % by vol. % by vol. Stage 2 actual % by vol.
  • Page 101 Specification Specification Rated voltage: 230 V~ Control thermostat Rated frequency: 50 Hz and temperature con- Rated current: 6.0 A troller setting: 75 °C Safety class: Temperature limiter Protection: IP 20 setting: 100 °C Line fuse (mains): max. 16 A Permissible ambient temperature ■...
  • Page 102 Certificates Declaration of conformity We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon- sible body, that the product Oil fired condensing boiler Vitoladens 300-W complies with the following standards: EN 267 EN 50 165 EN 303 EN 55 014...
  • Page 103 Certificates Manufacturer's certificate according to the 1st… (cont.) Allendorf, 1 February 2007 Viessmann Werke GmbH&Co KG pp. Manfred Sommer...
  • Page 104 Keyword index Keyword index Acknowledging a fault display....61 Fault display layout......61 Adjusting the air volume.....17 Fault history........62 Adjusting the ignition electrodes..19 Fault manager........33 Adjusting the oil pressure....16 Fault memory........62 Faults..........61 Fill function.........84 Boiler water temperature sensor ..71 Filling the system.........8 Boosting DHW heating.......79 Fill water..........8 Brief scans.........56...
  • Page 105 Keyword index Keyword index (cont.) Siphon Parts list..........93 ■ cleaning..........24 ■ filling..........10 Small softening system......8 Reduced room temperature....32 Specifications ........101 Reduced room temperature raising. . .86 Standard burner settings....14 Reducing the heat-up output....86 Standard room temperature....31 Reducing the heat-up time....87 Static burner pressure......17 Relay test...........58 System designs......25, 37...
  • Page 108 12.9 to 19.3 kW from serial no. 7418 781 9 00001 16.1 to 23.5 kW from serial no. 7418 782 9 00001 Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB...

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