Viessmann VITOLADENS 300-C Service Instructions Manual
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Viessmann VITOLADENS 300-C Service Instructions Manual

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VIESMANN
Service instructions
for contractors
Vitoladens 300-C
Type VC3, 12.9 to 28.9 kW
Oil fired condensing boiler
with integral boiler control unit
For applicability, see the last page
VITOLADENS 300-C
Please keep safe.
5692 745 GB
7/2007

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Summary of Contents for Viessmann VITOLADENS 300-C

  • Page 1 VIESMANN Service instructions for contractors Vitoladens 300-C Type VC3, 12.9 to 28.9 kW Oil fired condensing boiler with integral boiler control unit For applicability, see the last page VITOLADENS 300-C Please keep safe. 5692 745 GB 7/2007...
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained the Code of Practice of relevant trade associations, Danger all current safety regulations as This symbol warns against the defined by DIN, EN, DVGW, TRGI, risk of injury.
  • Page 3 Instal- charge static loads. ling non-authorised compo- nents and non-approved modifications/conversion can compromise safety and may invalidate our warranty. For replacements, use only ori- ginal spare parts from Viessmann or those which are approved by Viessmann.
  • Page 4 Index Index Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance ........Further details regarding the individual steps ..........Coding Code 1......................38 Code 2......................41 Resetting codes to their delivered condition ..........56 Service scans Service level overview ................57 Temperatures, boiler coding card and brief scans ........

  • Page 5: 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.
  • Page 6 Commissioning, inspection, maintenance Steps - commissioning, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page 22. Checking the condensate drain and cleaning the siphon (if installed) ............. . 23.

  • Page 7: Filling The Heating System

    Only use fill water of potable quality. 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.

  • Page 8: Venting The Boiler

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Close boiler fill valve C. Venting the boiler 1. Close the shut-off valves on the 4. Open valves B and C and vent heating water side. using mains pressure until no more air noise is audible.

  • Page 9: Draining The Heating System (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Draining the heating system (if required) A Drain valve...

  • Page 10: Filling The Siphon Or Neutralising System (Accessory) With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the siphon or neutralising system (accessory) with water A Siphon B Neutralising system (accessories) Pull the supply hose from the boiler and fill with a little water. Neutralising system operating instructions...

  • 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 prolonged time out of use, it may be necessary to reset the time and date, if the time flashes in the dis- play.

  • Page 12: Function Sequence And Possible Faults

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. c press this button again, 4. b for the required language. "Außentemperatur" (outside temperature) is displayed. 5. d to confirm. Function sequence and possible faults Display screen Measures Control unit is- Increase set sues heat de- value and ensure...
  • Page 13 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ignition and oil Check the ignition pump motor start module and oil pump motor, cables and plug- in connectors The solenoid Fault Check the oil sup- valves open ply; check the so- lenoid valves Flame signal pre- Fault...

  • Page 14: Removing The Front Panel

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Removing the front panel Adjusting the standard burner settings Standard burner settings Note Check that the service instructions are valid for the relevant burner (see applic- ability on the last page and the serial no. on the boiler type plate). A Flue gas test port...
  • Page 15 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Rated output 12.9/19.3 16.1/23.5 19.3/28.9 Burner stage Rated output 12.9 19.3 16.1 23.5 19.3 28.9 Oil burner nozzle Type 80°H LE V 80°H LE V 80°H LE Make: Danfoss 0.40 0.50 0.50 Oil pressure ap-...

  • 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 3. Press K and d simultaneously for approx. 2 s. "Relay test" is shown in the dis- play. After approx. 4 s the display shows "Burner st 1 ON".

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

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the air volume (static burner pressure) 6. Confirm the set value with d. Note The control unit changes automati- cally to burner stage 2. The display shows "Speed stage 1 + 2 " and a value between 1 and 255.

  • Page 18: Cleaning The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the burner 1. Undo nuts, remove the lid with 3. Undo Allen screw B and remove mixer equipment A and secure in rifling facility C. the maintenance position. 4. Clean the restrictor, dosing ring 2.

  • 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 electrodes 1. Undo nozzle E whilst holding the 3. Insert rifling facility C as far as oil preheater. Prevent the formation possible.

  • Page 20: Cleaning And Replacing The Oil Pump Filter, If Required

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Secure Allen screw B of the rifling facility. Check nozzle gap "a". Please note An incorrectly adjusted noz- zle gap "a" can result in irre- gular operation of the burner and even a fault shutdown.

  • Page 21: Opening The Boiler Door

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Opening the boiler door Cleaning the heating surfaces Please note To prevent damage to the heat exchanger, only clean with the implements supplied as part of the optional cleaning Danger Cleaning work may lead to eye injuries.
  • Page 22 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Clean the biferral heating surface 2. Clean the biferral heating surface (front area) with brush A. and the stainless steel heat exchanger with a vacuum cleaner. Angled nozzle B is available as an accessory.
  • Page 23 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Pull condensate hose E from the 5. Flush stainless steel heat exchan- boiler. ger with water F. 4. Push on-site hose D on the con- nector and route to a suitable ves- sel C.

  • Page 24: Checking Gaskets And Thermal Insulation Components

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Reconnect condensate hose E. 7. Insert combustion chamber to the end-stop. Checking gaskets and thermal insulation components 1. Check gaskets and the packing 2. Check the thermal insulation com- cord in the boiler door for damage.
  • Page 25 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Removing side panels (only required for maintenance work)

  • Page 26: Closing The Boiler Door And Fitting The Front Panel

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Refit in reverse order. Closing the boiler door and fitting the front panel Checking the condensate drain and cleaning the siphon (if installed) 1. Check at siphon (see page 10), 2.

  • Page 27: Checking The Active Charcoal Filter (Accessories)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Replace the granulate if the pH value < 6.5. Note Part no. for pH test strips: 9517 678. Please observe neutralising system manufacturer's instructions. Checking the active charcoal filter (accessories) Note Please observe active charcoal filter manufacturer's instructions.
  • Page 28 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) System version 1 One heating circuit without mixer A1 (with/without DHW heating) 1 Vitoladens 300-C 5 DHW circulation pump 2 Cylinder primary pump 6 Outside temperature sensor 3 DHW cylinder...
  • Page 29 (cont.) System version 2 One heating circuit without mixer A1 and one heating circuit with mixer M2 (with/without DHW heating) 1 Vitoladens 300-C 9 Heating circuit with mixer M2 2 Cylinder primary pump qP Temperature limiter for limiting the 3 DHW cylinder max.

  • Page 30: Adjusting The Heating Curves

    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-C qP Temperature limiter for limiting the 2 Cylinder primary pump max. temp. of underfloor heating...
  • Page 31 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Settings in the delivered condition: Slope = 1.4 Level = 0 A Heating curve slope for underfloor B Heating curve slope for low tem- heating systems perature heating systems (according to the Energy Savings Order [Germany])
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the slope and level 1. Slope: Change with coding address "d3" in code 1. Setting range 2 to 35 (equals slope 0.2 to 3.5). 2. Level: Change with coding address "d4" in code 1.
  • Page 33 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the set room temperature 5. Adjust the set day temperature with Standard room temperature rotary selector "ts". The value will be automatically accepted after approx. 2 s. Accordingly, the heating curve is adjusted along set room tempera- ture axis C, which results in modi- fied start/stop characteristics of the...

  • Page 34: Linking The Control Unit To The Lon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. d to select heating circuit A1 5. E Call up the set night tem- (heating circuit without perature. mixer) 6. a/b Change the value. 3. a "2r" flashes. 7. d Confirm the value.
  • Page 35 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom Control unit trans- Control unit re- Control unit re- mits outside tem- ceives outside tem- ceives outside tem- perature perature perature Set code "97:2" Set code "97:1"...

  • Page 36: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Press the following keys: 4. "Check OK" is displayed during communication between both 1. L + d simultaneously for devices. approx. 2 s. The subscriber check has been initiated. "Check not OK" is displayed if there is no communication 2.
  • Page 37 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Press d, for weather-compen- sated control units also confirm the display "Acknowledge: Yes" with The "Service" display extinguishes and the red fault indicator con- tinues to flash. Note An acknowledged maintenance message can be redisplayed by pressing d (approx.
  • Page 38 Coding 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 5. d to confirm; the display system equipment level or the setting briefly shows "accepted" of other codes) will not be displayed.
  • Page 39 Coding Code 1 (cont.) Overview Coding Coding in the delivered condition Possible change System design 00 :1 System version 1: 00 :2 System version 1: 1 heating circuit without 1 heating circuit without mixer A1, without DHW mixer A1, with DHW heat- heating 00 :3 System versions 2 and 3:...
  • Page 40 Coding 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 41 Coding 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 played.
  • Page 42 Coding 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 with- out mixer A1 are scanned; then the coding addresses for the heating circuit with mixer M2 are scanned.
  • Page 43 Coding Code 2 (cont.) Coding in the delivered condition Possible change 21:0 No maintenance inter- 21:1 The number of hours run val (operating hours) before the burner should selected 21:100 be serviced is adjustable from 100 to 10000 hours (each step represents 100 hours) 23:0 No time interval for...
  • Page 44 Coding Code 2 (cont.) Coding Heating circuit Heating circuit Cylinder primary pump pump pump Heating circuit Heating circuit with without mixer mixer Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk.
  • Page 45 Coding Code 2 (cont.) Coding Heating circuit Heating circuit Cylinder primary pump pump pump Heating circuit Heating circuit without mixer with mixer Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk. Control funk.
  • Page 46 Coding Code 2 (cont.) Coding in the delivered condition Possible change 60:20 During DHW heating, 60:5 The difference between the boiler water tem- the boiler water tempera- perature is up to 20 K 60:25 ture and the set DHW higher than the set temperature is adjustable DHW temperature from 5 to 25 K...
  • Page 47 Coding 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 48 The control unit sends sensor connected to the the outside temperature control unit is utilised to the Vitotronic 200-H internally 98:1 Viessmann system 98:1 System number adjusta- number (in conjunction ble from 1 to 5 with monitoring several 98:5 systems via...
  • Page 49 Coding 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 50 Coding Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A4:0 With frost protection A4:1 No frost protection, ad- justment only possible if coding address "A3: -9" has been selected. Note When selecting a value below 1 °C, there is a risk of pipes outside the ther- mal envelope of the...
  • Page 51 Coding Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit A6:36 Extended economy A6:5 Extended economy mode mode disabled is enabled, i.e. the burner A6:35 and heating circuit pump are switched OFF and the mixer will be closed at a variable value that is adjustable between 5 and 35 °C plus 1 °C.
  • Page 52 Coding 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-com- Reduced mode: with room temperature hook- pensated b0:2 Heating mode: with room temperature hook-up Reduced mode: weather- compensated b0:3 Heating mode/reduced...
  • Page 53 Coding Code 2 (cont.) Parameter ad- With heating circuit pump logic function: Heating cir- dress b5:... cuit pump OFF, if enabled RT > RT - 2 K; disabled RT < RT - 3 K actual actual Coding in the delivered condition Possible change Boiler circuit, mixer circuit C5:20...
  • Page 54 Coding Code 2 (cont.) Coding in the delivered condition Possible change E6:65 Max. speed of the vari- E6:0 Maximum speed adjusta- able speed pump 65 % ble from 0 to 100 % of of max. speed in stan- E6:100 max. speed dard mode E7:30 Min.
  • Page 55 Coding Code 2 (cont.) Coding in the delivered condition Possible change Burner F8:-5 For operation in re- F8:+10 Limit for raising the tem- duced room tempera- perature in reduced ture mode, the set room F8:-60 mode adjustable from temperature will be +10 to -60 °C raised (up to the tem- F8:-61...
  • Page 56 Coding Resetting codes to their delivered condition Press the following keys: 3. d to confirm 1. L + G simultaneously for approx. 2 s. 4. a/b to select "Standard set- ting? No". 2. e "Standard setting? Yes" appears.
  • Page 57 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. Relay test Press K and d simulta- Press d neously for approx. 2 s. Adjusting the air volume Press K and F simulta- Press K...
  • Page 58 Service scans Temperatures, boiler coding card and brief scans Press the following keys: 2. a/b for the required scan. 1. K + G simultaneously for 3. d Scanning is completed. approx. 2 s. The following values can be scanned, subject to the actual system equip- ment level: Display screen Explanation...
  • Page 59 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Software Software Software Software Software version version version version version Pro- Mixer Solar Extension gram- exten- control module ming unit sion unit 0: no 0: no mixer module...
  • Page 60 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Internal circulation Heating circuit A1 Heating circuit pump (without mixer) pump M2 (with mixer) Variable Software Variable Software speed version speed version pump Variable pump Variable 0: w/o...
  • Page 61 Service scans Scanning operating conditions and sensors Press the following keys: 3. c press again. 1. c "Select heating circuit" is 4. a/b for the required operating displayed. condition. 2. d to confirm; wait approx. 5. d Scanning is completed. 4 s.
  • Page 62 Service scans Scanning operating conditions and sensors (cont.) Display screen Explanation Mixer OPEN/CLOSE If an extension kit for one heating circuit with mixer is installed Solar pump OFF/ON If a Vitosolic is installed Solar circuit pump ...h Hours run Various languages The respective languages can be selected as permanent display language with d Any additional indications of operating states are irrelevant.
  • Page 63 Troubleshooting Fault display Fault display layout A Fault display C Fault number B Fault symbol D Fault code The red fault indicator flashes for Plain text fault displays: every fault. Burner control unit A fault in the burner control unit Outside temperature sensor causes the display to show "E".
  • Page 64 Troubleshooting Fault display (cont.) 3. d All fault messages are acknowledged simulta- neously, the fault display will be deleted and the red fault indicator continues to flash. Calling up acknowledged fault messages Press the following keys: 2. a/b for the acknowledged fault. 1.

  • Page 65: Outside Temperature

    Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Regulates as if the Outside tempera- Check the outside tem- outside temperature ture sensor perature sensor (see was 0 °C shorted out page 71). Regulates as if the Outside tempera- Check the outside tem- outside temperature...
  • Page 66 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Control mode Temperature sen- Check the sensor at the sor shorted out; Vitosolic. connects to the Vitosolic at S2 Control mode Collector tem- Check the sensor at the perature sensor Vitosolic.
  • Page 67 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner blocked. Boiler coding card Plug in boiler coding missing, faulty or card or replace it, if incorrect boiler faulty. coding card Burner blocked Flue gas tem- Check the flue gas tem- perature sensor perature sensor (see...
  • Page 68 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Control mode Communication Check connections, fault Vitocom 100 Vitocom 100 and coding (KM BUS) address "95". Control mode Communication Check connections and fault, PCB for ex- coding address "2E".
  • Page 69 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner in a fault The oil preheater Check oil pre-heater and state does not respond supply line and replace inside the toler- if necessary. ated time Press "E".
  • Page 70 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner in a fault No control/feed- Replace fuel valve BV 2 state back of/from fuel Press "E". valve BV 2 Burner in a fault Fuel valve BV 1 Check nozzle, vent oil state closes late...
  • Page 71 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner blocked Internal fault Start the equipment again. Replace the con- trol unit if the equipment will not restart. Repairs Checking the outside temperature sensor 1.
  • Page 72 Troubleshooting Repairs (cont.) 4. Subject to result, replace the lead or the outside temperature sensor. Checking the boiler water temperature sensor or the cylinder temperature sensor Boiler water temperature sensor: Pull the leads from boiler water temperature sensor A and check the resistance.
  • Page 73 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 tempera- ture sensor is immersed in the heating water (risk of scalding).
  • Page 74 Troubleshooting Repairs (cont.) 1. Pull the leads from flue gas tem- perature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in case of severe deviation. 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 75 Troubleshooting Repairs (cont.) 1. Pull the leads from temperature lim- iter A. 2. Check the continuity of the tem- perature limiter with a multimeter. 3. Remove the faulty temperature lim- iter. 4. Install a new temperature limiter. 5. After commissioning, press reset button "E"...
  • Page 76 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch OFF the power. 2. Remove top panel A. 3. Remove cover B. 4. Check fuse F1 (see connection and wiring diagram).
  • Page 77 Troubleshooting Repairs (cont.) Extension kit for heating circuit with mixer Checking the rotational direction of the mixer motor 2. Note the rotational direction of the mixer motor during its self-test. Then set the mixer manually to "Open" again. Note The flow temperature sensor must 1.
  • Page 78 Troubleshooting Repairs (cont.) 2. Change over the rotational direc- tion switch: Switch position I for central heating return from the left (delivered con- dition). Switch position II for central heat- A ON/OFF switch ing return from the right. B Rotational direction switch 1.
  • Page 79 Function description Control unit Control and display elements A Fault indicator (red) D User interface B ON indicator (green) E Reset button C Optolink interface F ON/OFF switch only in conjunction with the diag- G Rotary selector for standard room nostic adaptor (accessory) and temperature Vitosoft (accessory)
  • Page 80 Function description Control unit (cont.) Heating mode The control unit calculates a set boiler The burner control unit calculates the water temperature depending on the heat demand and controls the two- outside temperature and/or the room stage burner accordingly. The boiler temperature (if a room temperature- water temperature is limited inside the controlled remote control facility is...
  • Page 81 Function description Control functions (cont.) Heating program changeover Coding No changeover 91:0 Heating circuit without mixer A1 91:1 Heating circuit with mixer M2 91:2 Heating circuit without mixer and heating circuit with mixer 91:3 You can select which direction the heating program changes over in cod- ing address "D5": Heating program changeover...
  • Page 82 Function description Control functions (cont.) In coding address "34" you can select The minimum set boiler water tem- the influence the "Ext. demand" signal perature in case of external demand should have on the connected circula- is selected in coding address "9b". tion pumps.
  • Page 83 Function description Control functions (cont.) Temperature profile 2: (ZV parquet and flooring technology) code "F1:2" Temperature profile 3: Code "F1:3" Temperature profile 4: Code "F1:4" Temperature profile 5: Code "F1:5"...
  • Page 84 Function description Control functions (cont.) Temperature profile 6 (delivered condition): Code "F1:6" Raising the reduced room temperature During operation with reduced room The outside temperature limits for the temperature, the reduced set room start and end of the temperature rais- temperature can be automatically ing can be adjusted via coding raised subject to the outside tempera-...

  • Page 85: Standard Room Temperature

    Function description Control functions (cont.) Example using the settings in the delivered condition 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 The value and duration of the addi- with reduced room temperature to tional increase of the set boiler water...

  • Page 86: Room Temperature

    Function description Control functions (cont.) Example using the settings in the delivered condition A Start of operation with standard C Set boiler water or flow tempera- room temperature ture in accordance with coding B Set boiler water or flow tempera- address "FA": ture in accordance with the 50 °C + 20 % = 60 °C...
  • Page 87 Function description Remote control DIP switches (cont.) Remote control DIP switch setting The remote control affects the heating circuit without mixer A1 The remote control affects the heating circuit with mixer M2 When connecting a separate room temperature sensor, set DIP switch "3" to "ON".
  • Page 88 Designs Connection and wiring diagram internal connections Internal connections and sensors X ... Electrical interfaces Ignition unit § Boiler water temperature sen- a-Ö a-ÖA Fan control Flue gas temperature sensor Flame monitoring Temperature limiter Air pressure switch...
  • Page 89 Designs Connection and wiring diagram internal . . . (cont.) Main PCB Optolink Power supply unit Burner control unit...
  • Page 90 Designs Connection and wiring diagram internal . . . (cont.) Programming unit X ... Electrical interfaces Coding card Outside temperature sensor Connection adaptor Cylinder temperature sensor LON communication module fÖ Power supply Internal extension H3 aXA Oil preheater ON/OFF switch aXF Flame monitoring Reset button aVG KM BUS...
  • Page 91 Designs Connection and wiring diagram internal . . . (cont.) Internal extensions H1 and H3 (A5 and A9)
  • Page 92 Designs Connection and wiring diagram internal . . . (cont.) sÖ Heating circuit pump for the External blocking heating circuit without mixer (terminals 2 - 3) Cylinder primary pump External demand DHW circulation pump (terminals 1 - 2) fÖ Power supply External heating program gÖ...
  • Page 93 Parts lists Parts lists Spare parts information 030 Small parts comprising: Quote the part and serial no. (see 30a Pan-head screws type plate) and the item number of the M 6 x 20 required part (as per this parts list). 30d Cheese-head screw M5 x Obtain standard parts from your local supplier.
  • Page 94 213 EPP hood 050 Oil filter insert; Microtec 214 Edge protector 065 Solenoid valve core 215 Vitoladens 300-C logo 104 Fuse 6.3 A 250 V (slow) (10 pce.) 216 Decorative cap 105 Boiler coding card 12/18 kW 217 Set of sound deadening mats...
  • Page 95 Parts lists Parts lists (cont.) 300 Flue gas gasket D=80 401 Installation instructions 301 Ventilation air gasket D=125 402 Service instructions 302 Plug set A Type plate, optionally l.h. or r.h. 303 Plug set side 400 Operating instructions...
  • Page 96 Parts lists Parts lists (cont.)
  • Page 97 Parts lists Parts lists (cont.)
  • Page 98 Parts lists Parts lists (cont.)
  • Page 99 Parts lists Parts lists (cont.)
  • Page 100 Parts lists Parts lists (cont.)
  • Page 101 Parts lists Parts lists (cont.)
  • Page 102 Commissioning/service reports Commissioning/service reports Setting and test values Com- mission- Date: Oil pressure Stage 1 actual Stage 2 actual Vacuum actual after mainte- nance Carbon dioxide content Stage 1 actual % vol. % vol. Stage 2 actual % vol. % vol. Oxygen content O Stage 1 actual...
  • Page 103 Commissioning/service reports Commissioning/service reports (cont.) Service Service Service Service...
  • Page 104 Specification Specification Rated voltage: 230 V~ Line fuse (mains): max. 16 A Rated frequency: 50 Hz Rated current: 6.0 A Rated capacity of relay outputs at Safety class: 230 V~ for Heating circuit 2 (1) A~ Protection: IP 20D pump sÖ: Circulation pump 2 (1) A~ Permissible ambient temperature...
  • Page 105 Certificates Declaration of conformity We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole responsible body, that the product Oil fired condensing boiler Vitoladens 300- C complies with the following standards: EN 267 EN 15 034 EN 297 EN 50 165...
  • Page 106 Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the pro- duct Oil fired condensing boiler Vitoladens 300-C complies with the NO lim- its specified by the 1st BImSchV paragraph 7 (2) [Germany].
  • Page 107 Keyword index Keyword index Acknowledging a fault display Fault display layout ......Adjusting the air volume Fault history .
  • Page 108 Keyword index Keyword index (cont.) Parts list Safety chain ........
  • Page 112 16.1 to 23.5 kW from serial no. 7248 935 19.3 to 28.9 kW from serial no. 7248 934 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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