Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual
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Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual

Viessmann VITODENS 343-F WS4A Installation And Service Instructions Manual

Compact energy tower with a gas fired condensing boiler as compact model; natural gas and lpg version
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VIESMANN
Installation and service
instructions
for contractors
Vitodens 343-F
Type WS4A
Compact Energy Tower with a gas fired condensing boiler as compact model
Natural gas and LPG version
(GC no) 47-819-08
For applicability, see the last page
Please keep safe.
5592 883 GB
8/2007

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Summary of Contents for Viessmann VITODENS 343-F WS4A

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 343-F Type WS4A Compact Energy Tower with a gas fired condensing boiler as compact model Natural gas and LPG version (GC no) 47-819-08 For applicability, see the last page Please keep safe. 5592 883 GB 8/2007...

  • Page 2: Safety Instructions

    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: Table Of Contents

    Index Index Installation instructions Preparing for installation Product information ..................Handling ..................... Positioning ....................Clearance dimensions ................On site connections ..................Preparing the installation of the compact boiler ........... Installation sequence Fitting the connections ................14 Electrical connections................. 17 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance ........
  • Page 5 Index Index (cont.) Connection and wiring diagram internal connections II......131 Connection and wiring diagrams external connections......133 Parts lists ....................135 Commissioning/service reports ............... 143 Specification ..................... 144 Certificates Declaration of conformity ................146 Manufacturer's certificate according to the 1st BImSchV [Germany]..... 147 Keyword index ..................

  • Page 6: Preparing For Installation

    Preparing for installation Product information Vitodens 343-F, WS4A Set up for operation with natural gas. May be converted to LPG. The Vitodens 343-F should generally only be delivered to those countries speci- fied on the type plate. For deliveries to alternative countries, an approved con- tractor, on his own initiative, must arrange individual approval in accordance with the law of the land.

  • Page 7: Clearance Dimensions

    Preparing for installation Clearance dimensions All measurements in mm. If appliance is fitted in a cupboard additional space for the DHW expansion vessel (see G3 instructions) and an approx. 40l solar expansion vessel have to be considered. Plan view E Required clearance for removing the front panel (also maintain this A T&P valve drain pipe clearance when fitting the facia...

  • Page 8: On Site Connections

    Preparing for installation On site connections A Vitodens dimensions C Condensate drain B Area for on-site hydraulic connec- D Gas connection tions E Top edge finished floor Compulsory with connection F Cable entry panel Allow all cables/leads to protrude Recommendation without con- approx.

  • Page 9: Preparing The Installation Of The Compact Boiler

    Preparing for installation Preparing the installation of the compact boiler Removing the front panels and fitting the quick acting air vent valve 1. Position the compact boiler at a 2. Pull the lower front panel at its distance of approx. 500 mm from upper edge forward and lift out the on-site drain connection.
  • Page 10 Preparing for installation Preparing the installation of the compact boiler (cont.) 3. Pull the front panel at its upper 4. Remove the plugs from the top of edge forward and lift out upwards. the compact boiler and insert the quick acting air vent valve (secured to the top of the boiler).
  • Page 11 Preparing for installation Preparing the installation of the compact boiler (cont.) Fitting the T&P valve drain line...
  • Page 12 Preparing for installation Preparing the installation of the compact boiler (cont.) 1. Fit the retaining clip to the back 3. Fit the drain pipe to the elbow fit- panel. ting. 2. Secure the elbow fitting to the pre- 4. Connect the drain pipe to the on- assembled drain pipe.
  • Page 13 Preparing for installation Preparing the installation of the compact boiler (cont.) On-site connections at the connection panel (accessory) Installation position, see page 8. All connections R ¾" A Solar flow B Heating flow C Cold water D DHW circulation E DHW F Heating return G Solar return Connection panel installation...

  • Page 14: Installation Sequence

    Installation sequence Fitting the connections Connections on the DHW side Connect the pipework on the DHW side with detachable fittings. Seal off those connections that are not required. A DHW Rp ¾" B DHW circulation Rp ¾" C Cold water Rp ¾" A DHW G Drain valve B DHW circulation pump...

  • Page 15: Heating Circuit Connection

    Installation sequence Fitting the connections (cont.) Observe DIN 1988 and DIN 4753 [or Note local regulations] for the connection The safety valve, shut-off valve and on the DHW side. drain valve plus the check valve on the DHW side are already integrated Danger into the boiler.
  • Page 16 Installation sequence Fitting the connections (cont.) Solar circuit connection Connect the solar circuit. Note The solar circuit pump is integrated into the Vitodens. Solar heating system installa- tion instructions. A Solar flow (Multi-connect system) B Solar return (Multi-connect sys- tem) Flue gas connection Connect the balanced flue.

  • Page 17: Electrical Connections

    Installation sequence Fitting the connections (cont.) Gas connection 1. Carry out a leak/soundness test. Please note Excessive test pressure may damage the compact boiler and the gas valve. Max. test pressure 150 mbar. Where higher pres- sure is required for sound- ness tests, separate the compact boiler and the gas valves from the gas supply...
  • Page 18 Installation sequence Electrical connections (cont.) 1. Remove the cover from the wiring 2. Route the external cables between chamber. the side panel and the cap panel and route them to the wiring cham- ber. Please note Power cables will be damaged if they contact hot parts.
  • Page 19 Installation sequence Electrical connections (cont.) 3. Bundling cables with cable ties and securing them to the side panel External connections at the control unit Plug 230 V Power supply accessories (230 Solar circuit pump (connected in V/50 Hz). Where the boiler is the delivered condition) installed in a wet area, the con- fÖ...
  • Page 20 Installation sequence Electrical connections (cont.) Low voltage plugs & Solar temperature sensor Outside temperature sensor Terminals X3.8 - X3.9. (only for weather-compensated NOTE: If no solar panels are control units). fitted to the appliance the solar Terminals X3.1 - X3.2. sensor has to be connected Installation: otherwise the appliance is going...

  • Page 21: 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. Pivoting down the control unit for commissioning and maintenance work ............2.
  • Page 22 Commissioning, inspection, maintenance Steps - commissioning, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page 21. Checking the condensate drain ........22.

  • Page 23: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Pivoting down the control unit for commissioning and main- tenance work 1. Open flap A. 2. Release the side closures B and pivot control unit C forward. 3. Release the side screws and pivot control unit C down with its retain- ing frame D.
  • Page 24 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Check the inlet pressure of the dia- phragm expansion vessel. 2. Close the gas shut-off valve. 3. Pivot control unit A down (see page 23.) 4. Fill the heating system at fill valve B in heating return B.

  • Page 25: Venting The Boiler

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the 3. Open valves A and B, and vent heating water side. at mains pressure until no sound of escaping air can be heard. 2.

  • Page 26: Filling The Solar Circuit

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Check the system pressure. Filling the solar circuit Solar heating system installation and service instructions...
  • Page 27 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) A Non-return valve, solar circuit C Solar circuit pressure gauge B Solar circuit fill valve D Sight glass, Tyfocor container...
  • Page 28 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Please note 4. Close ball valve of fill valve B. Overheated collector areas and overheated heat transfer 5. Open the air vent valve at the solar medium can cause burns/ collector.

  • Page 29: 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 Datum (siehe Arbeitsschritt 2.) Falls bei Erstinbetriebnahme oder nach längerer Stillstandzeit die Uhr- zeit im Display blinkt, müssen Uhr- zeit und Datum neu eingestellt werden.

  • Page 30: Checking The Gas Type

    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. Checking the gas type The Vitodens is equipped with an electronic combustion control unit that adjusts the burner for optimum combustion in accordance with the prevailing gas qual- ity.

  • Page 31: Gas Type Conversion (Only For Operation With Lpg)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Gas type conversion (only for operation with LPG) 1. Turn the adjusting screw A (Allen screw 2.5 mm) on the gas train clockwise as far as possible towards " " (approx. 30 turns). 2.
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ignition Fault F4 Check the ignition module (control voltage 230 V across plugs "X2.1" and "X2.2") Gas train opens Fault F4 Check the gas train (control vol- tage 230 V); check the gas supply pressure Ionisation cur-...

  • Page 33: Checking The Static And Supply Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) For further details regarding faults, see page 92. Checking the static and supply pressure Danger Higher CO emissions can lead to poisoning. Check the CO emissions before and after any work on gas appliances, to prevent any health hazards and to ensure the perfect operational condi- tion of the system.
  • Page 34 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure; this should be as follows: Natural gas 20 mbar LPG 50 mbar Note Use suitable test equipment with a resolution of at least 0.1 mbar to test the supply pressure.

  • Page 35: Setting The Maximum Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Setting the maximum output Note You can limit the maximum output for heating operation. The limit is set via the modulation range. 1. Start the compact boiler. 4. Confirm the set value with d. 2.

  • Page 36: Removing The Burner And Checking The Burner Gasket (Replace Gasket Every Two Years)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) The flue pipe is deemed to be sound if If actual CO values are higher or O the CO concentration in the combus- values are lower, then pressure test tion air is no higher than 0.2 % or the the flue pipe with a static pressure of concentration is at least 20.6 %.

  • Page 37: Checking The Burner Gauze Assembly

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check burner gasket H for damage. Generally replace the burner gas- ket every 2 years. Checking the burner gauze assembly Replace the burner gauze assembly if the wire gauze is damaged. 1.

  • Page 38: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and adjusting the ignition and ionisation electro- A Ignition electrodes B Ionisation electrode 1. Check the electrodes for wear and 3. Check the electrode gaps. If the contamination. gaps are not as specified or the electrodes are damaged, replace 2.

  • Page 39: Cleaning The Combustion Chamber/Heating Surfaces And Fitting The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the combustion chamber/heating surfaces and fit- ting the burner 1. If required, clean heating surfaces A with a brush or flush with water. Please note Scratches on parts that are in contact with flue gases can lead to corrosion.

  • Page 40: Checking The Condensate Drain

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Check the gas connections for soundness. Danger Escaping gas leads to a risk of explosion. Check all fittings for sound- ness. 5. Connect the electrical cables/leads to each corresponding component. Checking the condensate drain Check that the condensate can freely drain.
  • Page 41 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Drain the DHW cylinder. For this, 6. Use a chemical cleaning agent to close the on-site shut-off valve and remove hard deposits that cannot open drain valve B. be removed by a high pressure cleaner.

  • Page 42: Checking And Replacing The Impressed Current Anode (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and replacing the impressed current anode (if required) 1. Check impressed current anode G 3. Bend impressed current anode G for damage (see page 41). in accordance with the pattern of the old electrode.

  • Page 43: Checking The Diaphragm Expansion Vessel And Solar Circuit Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. If the inlet pressure of the dia- 3. Top up your heating system with phragm expansion vessel is lower water and vent until the filling pres- than the static system pressure, sure of a cooled system is 0.1 to top up with nitrogen until the inlet 0.2 bar higher than the inlet pres-...

  • Page 44: Checking The Function Of All Safety Valves

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Release the hose tie on sight hose 3. Secure sight hose D again with D, pull the sight hose out and cable ties. drain its contents into a suitable container.

  • Page 45: Checking The Combustion Quality

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the combustion quality The electronic combustion control unit automatically ensures an optimum com- bustion quality. Only the combustion values need to be checked during commis- sioning and maintenance. For this, check the CO or O content.
  • Page 46 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Check the CO content. Should the actual value deviate by more than 1 % from the above range, imple- ment the steps from page 45 (pos- sibly replace the burner). 5.

  • Page 47: Checking The Ionisation Current

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the ionisation current 1. Pull the cable off and connect test equipment (adaptor cable available as accessory). 2. Adjust the upper output. Press K and d simultaneously for at least 2 s. With a/b in the display, select "Full load".

  • Page 48: Matching The Control Unit To The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Delivered condition: The compact boiler heats the total cylinder volume (approx. 250 l). Valve position: A - AB Optional change: The compact boiler heats only the upper cylinder volume (approx. 80 l). Valve position: B - AB Matching the control unit to the heating system Note...
  • Page 49 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) ! Outside temperature sensor E Cold water A Solar collectors F Heating circuit B Collector temperature sensor G Vitodens C DHW circulation pump H Vitotrol 200 or 300 D DHW Required coding Address Operation with natural gas (delivered condition)
  • Page 50 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Outside temperature sensor Cold water Flow temperature sensor High limit thermostat (underfloor sÖ Heating circuit pump heating) aVG KM BUS Heating circuit aBH Power supply (extension kit) Extension kit for a heating circuit Solar collectors with mixer Collector temperature sensor...
  • Page 51 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 Note The flow rate of the heating circuit without mixer must be at least 30 % greater than the flow rate of the heating circuit with mixer.
  • Page 52 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Required coding Address Operation with natural gas (delivered condition) 82:0 Operation with LPG 82:1 System version 4 One heating circuit without mixer A1 and one heating circuit with mixer M2 with system separation Outside temperature sensor Cold water...
  • Page 53 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Vitodens Vitotrol 200 or 300 Required coding Address Operation with natural gas (delivered condition) 82:0 Operation with LPG 82:1 System version 5 One heating circuit with mixer M2 (with extension kit), one heating circuit with mixer (with the Vitotronic 200-H) and low loss header Outside temperature sensor aBH Power supply (extension kit)

  • Page 54: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Extension kit for a heating circuit Cold water with mixer High limit thermostat (underfloor Vitotronic 200-H heating) Low loss header Underfloor heating circuit Vitodens Heating circuit Vitotrol 200 or 300 Required coding Address Operation with natural gas (delivered condition)
  • Page 55 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 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 56 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 57 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 58: Connecting 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 59 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 60: Adjusting The Vitosolic 100

    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 61 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Set the required value with a/b. Confirm with d. Note After approx. 2 min, the display reverts to the standard display, sub- ject to no further adjustments or confirmation being entered. Setting the system details and functions Special functions SF Delivered condition: SF 5...
  • Page 62 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) T control unit DO/DF Delivered condition: DO 6.0 6 °C; DF 4.0 4 °C Setting Description range DO 1.5 The control unit determines the differential between the collector DO 10.0 temperature and the cylinder temperature and compares these with the selected starting temperature differential "DO".
  • Page 63 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Maximum collector temperature CX Delivered condition: CX 120.0 120 °C Setting Description range CX 100.0 The solar circuit pump is switched ON (collector cooling) when CX 190.0 this temperature (solar circuit idle, maximum cylinder temperature has been reached) is exceeded.

  • Page 64: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Maximum flow rate FX Delivered condition: FX 3.0 3.0 l/min Setting Description range FX 0.0 Select the flow rate in accordance with the installed collectors 20.0 (see Vitosol service instructions) Heat transfer medium ME Delivered condition: ME 1 (never adjust) Setting...
  • Page 65 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Set code "24:1" and then code "24:0" if a service is carried out before the ser- vice display is shown; the set service parameters for hours run and interval are then reset to 0.

  • Page 66: Coding

    Coding Code 1 Calling up code 1 Note 2. a/b for the required coding On weather-compensated control address; the address units, codes are displayed as plain flashes text. Codes that are irrelevant (due to the 3. d to confirm system equipment level or the set- ting of other codes) will not be dis- 4.
  • Page 67 Coding Code 1 (cont.) Coding in the delivered condition Possible change Max. boiler water temp. 06:... Maximum limit of the 06:20 Maximum limit of the boil- boiler water tempera- er water temperature ture, defaulted by the 06:75 within the ranges de- boiler coding card faulted by the compact boiler...

  • Page 68: Code 2

    Coding Code 1 (cont.) Coding Coding in the delivered condition Possible change Summer econ. M2 A5:5 With heating circuit A5:0 Without heating circuit pump logic function pump logic function Min. flow temp. M2 C5:20 Electronic minimum C5:1 Minimum limit adjustable flow temperature limit from 1 to 75 °C 20 °C...
  • Page 69 Coding Code 2 (cont.) 4. d to confirm; the value 7. a/b for the selection of flashes. further addresses. 5. a/b for the selected value. 8. L + G press simultaneously for approx. 1 s; code 2 is 6. d to confirm;...
  • Page 70 Coding Code 2 (cont.) Coding Coding in the delivered condition Possible change System design 00 :2 System design 1: 00 :4 System design 2, 5: 1 heating circuit without 1 heating circuit with mixer A1, with DHW mixer M2, with DHW heating heating 00 :6...
  • Page 71 Coding Code 2 (cont.) Coding in the delivered condition Possible change 2E:0 Without external exten- 2E:1 With external extension sion (automatic setting on connection) 2F:0 Venting program/fill pro- 2F:1 Venting program enabled gram disabled 2F:2 Fill program enabled 32:0 Influence of the signal 32:1 Influence of the signal "External blocking"...
  • Page 72 Coding Code 2 (cont.) Coding in the delivered condition Possible change Boiler/burner 34:0 Influence of the signal 34:1 Influence of the signal "External demand" on "External demand" on the the circulation pumps: 34:23 circulation pumps: see All pumps in control the following table function Value...
  • Page 73 Coding Code 2 (cont.) Value Internal Heating cir- Heating cir- Cylinder primary pump address circulation cuit pump cuit pump 34 ... pump Heating cir- Heating cir- cuit without cuit with mixer mixer Control Control funct. Control funct. funct. Control Control funct. OFF funct.
  • Page 74 Possible change 65:... Information regarding 65:0 Without diverter valve the type of diverter 65:1 Diverter valve by valve (not adjustable) Viessmann 65:2 Diverter valve by Wilo 65:3 Diverter valve by Grund- 67:40 3. Set DHW value 67:0 Set DHW value adjusta- ble from 0 to 60 °C...
  • Page 75 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 = Compact boiler 5 = Never adjust 10 - 98 = Vitotronic 200-H 99 = Vitocom Note Allocate each number...
  • Page 76 LON to any connected Vitotronic 200- 98:1 Viessmann system 98:1 System number adjusta- number (in conjunction ble from 1 to 5 with monitoring several...
  • Page 77 Coding Code 2 (cont.) Coding in the delivered condition Possible change 9C:20 Monitoring LON sub- 9C:0 No monitoring scribers 9C:5 The time is adjustable When there is no re- from 5 to 60 min sponse from a subscri- 9C:60 ber, values defaulted by the control unit continue to be used for a further 20 min.
  • Page 78 Coding Code 2 (cont.) Parameter Heating circuit pump Address A3:... "ON" at "OFF" at -10 °C -8 °C -9 °C -7 °C -8 °C -6 °C -7 °C -5 °C -6 °C -4 °C -5 °C -3 °C -4 °C -2 °C -3 °C -1 °C...
  • Page 79 Coding Code 2 (cont.) Coding in the delivered condition Possible change A5:5 With heating circuit A5:0 Without heating circuit pump logic function pump logic function (economy circuit): Heat- A5:1 With heating circuit pump ing circuit pump "OFF" logic function: Heating if the outside tempera- A5:15 circuit pump "OFF", if...
  • Page 80 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 81 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 82 Coding Code 2 (cont.) Coding in the delivered condition Possible change Boiler circuit, mixer circuit C5:20 Electronic minimum C5:1 Minimum limit adjustable flow temperature limit from 1 to 75 °C 20 °C C5:75 C6:74 Electronic maximum C6:10 Maximum limit adjustable flow temperature limit from 10 to 75 °C 74 °C...
  • Page 83 Coding Code 2 (cont.) Coding in the delivered condition Possible change F2:8 Time limit for party F2:0 No time limit for party mode 8 hours or exter- mode nal heating program F2:1 Time limit adjustable from changeover via key 1 to 12 hours F2:12 F8:-5 For the operation in re-...

  • Page 84: Resetting Codes To Their Delivered Condition

    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 85: Service Scans

    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. Max.

  • Page 86: Temperatures, Boiler Coding Card And Brief Scans

    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: Slope A1 level A1...
  • Page 87 Service scans Temperatures, boiler coding card and brief . . . (cont.) Brief Display screen scan Software Software Software Software Software version version version version version External Program- Mixer Solar ming unit exten- control module extension 0: no 0: no exter- sion unit 0: no...

  • Page 88: Checking Outputs (Relay Test)

    Service scans Checking outputs (relay test) Vitotronic 200 Press the following keys: 2. a/b for the required relay out- put. 1. K + d simultaneously for approx. 2 s. 3. d Relay test is completed. Subject to the actual equipment level, the following relay outputs can be con- trolled: Display Explanation...

  • Page 89: Scanning Operating Conditions And Sensors

    Service scans Checking outputs (relay test) (cont.) 3. Select "4" with a/b. The Vitosolic 100 returns to auto- matic mode. Scanning operating conditions and sensors Vitotronic 200 Press the following keys: 3. c press again. 1. c "Select heating circuit" is 4.
  • Page 90 Service scans Scanning operating conditions and sensors (cont.) Display screen Explanation Int. output OFF/ON Cylinder primary pump Heating circuit pump OFF/ON If an external extension or extension kit for one heating circuit with mixer is installed Central fault message OFF/ If an external extension is installed Mixer OPEN/CLOSE If an extension kit for one heating circuit with...

  • Page 91: Troubleshooting

    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 92: Fault Codes

    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 93 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 99). Regulates as if the Outside tempera- Check the outside tem- outside temperature...
  • Page 94 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Control mode Solar: Lead of the Check the sensor (see collector tempera- page 102). ture sensor S1 at the Vitosolic bro- Control mode Solar: Sensor S3 Check the sensor (see at the Vitosolic page 102).
  • Page 95 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Regulates as if the Internal fault Replace the control unit. outside temperature was 0 °C Control mode as per Internal fault Replace the control unit. delivered condition Burner blocked.
  • Page 96 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Control mode with- Room tempera- Check the room tem- out room influence ture sensor, heat- perature sensor, heating ing circuit A1 circuit A1. shorted out Control mode with- Room tempera- Check the room tem-...
  • Page 97 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner in a fault The ionisation Check the ionisation state current lies out- electrode and cable. side the permissi- Press "E RESET". ble range during calibration Burner in a fault Heat draw-off re-...
  • Page 98 Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner in a fault No flame signal. Check the ionisation state electrode and cable, measure the ionisation current, check the gas pressure, check the gas train, ignition, ignition module, ignition electro- des and the condensate...

  • Page 99: Repairs

    Troubleshooting Fault codes (cont.) Fault code System character- Cause Measures on the dis- istics play Burner blocked or in Strong interfer- Start the equipment a fault state ence (EMC) field again. Replace the con- nearby, or faulty trol unit, if the equip- main PCB ment will not restart.
  • Page 100 Troubleshooting Repairs (cont.) 2. Test the resistance of the outside temperature sensor across term- inals "X3.1" and "X3.2" on the dis- connected plug and compare it with the curve. 3. Where actual values strongly devi- ate from the curve values, discon- nect the wires at the sensor and repeat test on the sensor itself.
  • Page 101 Troubleshooting Repairs (cont.) Boiler water temperature sensor, checking the cylinder tem- perature sensor or the flow temperature sensor for a low loss header 1. Boiler water temperature sensor: Pull the leads from boiler water temperature sensor A and check the resistance. Cylinder temperature sensor: Pull plug % from the cable harness at the control unit and check the resis-...
  • Page 102 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 103 Troubleshooting Repairs (cont.) S1 Collector temperature sensor S2 Temperature sensor S2 S3 Temperature sensor S3 2. Disconnect the respective sensor. 3. Check the sensor resistance and compare it with the curve. 4. Replace the sensor in case of severe deviation.
  • Page 104 Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded. Reset the interlock after the flue gas system has cooled down by pressing "E RESET". 1.
  • Page 105 Troubleshooting Repairs (cont.) 3. Replace the sensor in case of severe deviation.
  • Page 106 Troubleshooting Repairs (cont.) Checking the plate-type heat exchanger 1. Remove cover panel A. 6. Undo fittings D. 2. Shut off the heating water side of 7. Pull the locking bracket from plug- the compact boiler. in connectors E and pull the con- nections on the heating water 3.
  • Page 107 Troubleshooting Repairs (cont.) 8. Remove plate-type heat exchan- 10. Check the connections on the ger F. heating water side for contamina- tion and, if required, flush or Note replace the plate-type heat During removal, small amounts of exchanger. water may trickle out and escape from the removed plate-type heat 11.
  • Page 108 Troubleshooting Repairs (cont.) If the burner control unit cannot be 3. Remove the faulty thermocouple. reset after a fault shutdown, although the boiler water temperature is below 4. Install a new thermocouple. approx. 75 °C, check the following: 5. After commissioning, press reset 1.
  • Page 109 Troubleshooting Repairs (cont.) Checking the fuse in the boiler control unit 1. Switch OFF the power. 3. Remove cover A. 2. Release the side closures and 4. Check fuse F1. pivot the control unit down.
  • Page 110 Troubleshooting Repairs (cont.) Checking the fuse in the Vitosolic 100 1. Switch OFF the power. 3. Check fuse A. 2. Fit the cover of the Vitosolic 100. Extension kit for heating circuit with mixer Checking the rotational direction of 2. Note the rotational direction of the the mixer motor mixer motor during its self-test.
  • Page 111 Troubleshooting Repairs (cont.) Changing the rotational direction of Switch position I for central heating the mixer motor (if required) return from the left (delivered condi- tion). Danger An electric shock can be life-threatening. Before opening the equip- ment, switch the ON/OFF switch OFF and disconnect the mains voltage, for exam- ple at the fuse or the main...
  • Page 112 Troubleshooting Repairs (cont.) Changing the combustion control parameters The parameters are changed via the coding addresses in code 2. Calling up coding addresses 4. Select the required coding address with a or b (see the following 1. Press L and G simultaneously table) and change the value.
  • Page 113 Troubleshooting Repairs (cont.) Coding in the delivered condition Possible change 84:0 Start capacity correc- 84: 8 Start capacity correction tion 0 % adjustable from -16 to 84:7 +14 %. One step equals 2 %. 85:0 Standard mode 85:1 Manual calibration of the combustion control unit.

  • Page 114: Function Description

    Function description Vitotronic 200, type HO1 Bedien- und Anzeigeelemente A Manometer D Betriebsanzeige (grün) B Störungsanzeige (rot) E Entriegelungstaster C Optolink-Schnittstelle F Bedienfeld nur in Verbindung mit Diagnose- G Drehknopf für die normale Raum- Adapter (Zubehör) und Vitosoft temperatur (Zubehör) H Netzschalter Tasten auf dem Bedienfeld: Zeitprogramm Raumbehei-...

  • Page 115: Heating Operation

    Function description Vitotronic 200, type HO1 (cont.) Heating operation The control unit determines a set boil- The determined set boiler water tem- er water temperature subject to out- perature is transferred to the burner side temperature or room temperature control unit. From the set and actual (if a room temperature-dependent boiler water temperatures, the burner remote control is connected) and to...

  • Page 116: Internal Extension H1

    Function description Vitotronic 200, type HO1 (cont.) DHW heating by solar collectors The solar circuit pump will start and The pump is switched OFF when the the DHW cylinder will be heated up actual temperature falls below the when a temperature differential stopping temperature differential "DF"...

  • Page 117: Extensions For External Connections (Accessories)

    Function description Extensions for external connections (accessories) Internal extension H2 The internal extension is integrated Heating circuit pump for heating cir- into the control unit housing. The fol- cuit without mixer (coding address lowing alternative functions can be "53:2") connected to relay output sK. The Cylinder primary pump (coding function is allocated via coding address "53:3")

  • Page 118: External Extension H

    Function description Extensions for external connections . . . (cont.) External extension H1 The external extension is connected External blocking to the boiler control unit via the KM (terminals 2 - 3) BUS. The following functions can be External demand controlled or processed simulta- (terminals 1 - 2) neously via the extension:...
  • Page 119 Function description Extensions for external connections . . . (cont.) External extension H2 The external extension is connected External blocking to the boiler control unit via the KM (terminals 2 - 3) BUS. The following functions can be External demand controlled or processed simulta- (terminals 1 - 2) neously via the extension:...

  • Page 120: Control Functions

    Function description Control functions External heating program changeover The "External heating program chan- geover" function is connected via external extension input "aVD". You can select which heating circuits the heating program changeover affects in coding address "91": Heating program changeover Coding No changeover 91:0...
  • Page 121 Function description Control functions (cont.) External blocking The "External blocking" function is In coding address "32" you can select connected via the external extension the influence the "Ext. blocking" sig- input "aVD". nal should have on the connected cir- culation pumps. External demand The "External demand"...
  • Page 122 Function description Control functions (cont.) Filling with the control unit switched ON If the system is to be filled with the The burner shuts down if this function control unit switched ON, the diverter is enabled via coding address "2F". valve will be moved to its central posi- The program is automatically disabled tion via code "2F:2"...
  • Page 123 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 124 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 125 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 126: Remote Control Dip Switches

    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 127: Electronic Combustion Control Unit

    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 128 Function description Electronic combustion control unit (cont.) Air factor content Air factor content content content content (%) for natur- (%) for natur- (%) for LPG P al gas E al gas LL 1.24 10.9 1.27 10.6 1.30 10.3 1.34 10.0 1.37 1.40 1.44...

  • Page 129: Designs

    Designs Connection and wiring diagram internal connections I Main PCB Ionisation electrode X ... Electrical interface Flue gas temperature sensor § Boiler water temperature sen- dÖ Stepper motor for diverter valve Cylinder temperature sensor Gas solenoid valve...
  • Page 130 Designs Connection and wiring diagram internal . . . (cont.) Temperature limiter a:Ö Modulation coil Ignition unit Fault message, impressed cur- a-ÖA Fan motor rent anode...

  • Page 131: Connection And Wiring Diagram Internal Connections Ii

    Designs Connection and wiring diagram internal connections II Main PCB Main PCB...
  • Page 132 Designs Connection and wiring diagram internal . . . (cont.) Optolink Gas solenoid valve Burner control unit fÖ Mains input 230V/50Hz Programming unit External safety valve (if Coding card installed) LON communication module Power supply, internal extension Internal extension H1 ON/OFF switch a-Ö...

  • Page 133: Connection And Wiring Diagrams External Connections

    Designs Connection and wiring diagrams external connections A10 Impressed current anode PCB A11 Vitosolic 100...
  • Page 134 Designs Connection and wiring diagrams external . . . (cont.) A12 Vitotronic 200 (boiler control Cylinder temperature sensor S3 unit) (PCB A11) A13 Impressed current anode con- Outside temperature sensor nection Flow temperature sensor A14 Wiring chamber PCB & Collector temperature sensor Collector temperature sensor Solar circuit pump 230 V (PCB A11)

  • Page 135: Parts Lists

    Parts lists Parts lists Spare parts information 042 Safety spring Quote the part and serial no. (see 043 Heat exchangers type plate) and the item number of the 044 Siphon connection required part (as per this parts list). 046 O-ring Ø28 x 2.5 Obtain standard parts from your local 047 Boiler flue connection plug supplier.
  • Page 136 Parts lists Parts lists (cont.) 095 Locking clips (10 pcs.) 093 Cable harness X8/X9 110 Outside temperature sensor 094 Cable harness 100/35/34 (aux- 112 Flue gas temperature sensor iliary earth) 120 Locking handle 096 Cable harness X3 121 Cylinder temperature sensor 097 Cable 96/40/X7 122 Hinge pins (10 pce.) 098 Cable X2/Vitosolic...
  • Page 137 Parts lists Parts lists (cont.)
  • Page 138 Parts lists Parts lists (cont.)
  • Page 139 Parts lists Parts lists (cont.)
  • Page 140 Parts lists Parts lists (cont.)
  • Page 141 Parts lists Parts lists (cont.)
  • Page 142 Parts lists Parts lists (cont.)

  • Page 143: Commissioning/Service Reports

    Commissioning/service reports Commissioning/service reports Setting and test values Set value Commis- Service sioning Date: Static pressure mbar max. 57.5 mbar Supply pressure (flow pressure) = for natural gas E mbar 17.4- 57.5 mbar = for natural gas LL mbar 17.4- 57.5 mbar = for LPG mbar...

  • Page 144: Specification

    Specification Specification Rated voltage: 230 V Electronic tempera- 82 °C Rated frequency: 50 Hz ture limiter setting: Rated current: 6.3 A Temperature limiter 100 °C (fixed) Safety class: setting: Protection: IP X 4 D to Line fuse (mains): max. 16 A EN 60529 Power consumption Permissible ambient temperature...
  • Page 145 Specification Specification (cont.) Product characteristics (to EnEV [Germany]) Rated output range 4.2 to 13 Efficiency µ at 100 % of rated output 96.0 30 % of rated output 107.4 Standby loss q (max. limit according to EnEV B,70 [Germany]) Power consumption (max. limit according to EnEV [Germany]) 100 % of rated output 30 % of rated output...

  • Page 146: Certificates

    Certificates Declaration of conformity Declaration of conformity for the Vitodens 343-F We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole responsible body, that the product Vitodens 343-F complies with the following standards: DIN 4702 6 EN 50 165...

  • Page 147: Manufacturer's Certificate According To The 1St Bimschv [Germany]

    Certificates Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, confirm that the pro- duct Vitodens 343-F meets the NO limits specified by the 1st BImSchV paragraph 7 (2) [Germany]. Allendorf, 4. April 2007 Viessmann Werke GmbH&Co KG...

  • Page 148: Keyword Index

    Keyword index Keyword index Acknowledge Electronic combustion control unit 127 Service Extension kit for heating circuit with ........Acknowledging a fault display mixer .
  • Page 149 Keyword index Keyword index (cont.) Ignition Reduced room temperature .........
  • Page 150 Keyword index Keyword index (cont.) Temperature limiter Venting ............Temperature scans Venting program .
  • Page 152 Applicability Gas fired condensing compact boil- Type WS4A 4.2 to 13.0 kW from serial no. 7288 384 7 00001 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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