Viessmann Vitodens 333 Service Instructions Manual
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Viessmann Vitodens 333 Service Instructions Manual

Compact gas fired condensing boiler
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See also: Instruction Manual , Instruction and Service Manual
VIESMANN
Service instructions
for heating engineers
Vitodens 333
Type WS3A
Compact gas fired condensing boiler
4.2 to 13 kW natural gas version
6.6 to 26 kW natural gas and LPG version
For applicability, see the last page
VITODENS 333
Please keep safe
5692 619 GB
8/2005

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Summary of Contents for Viessmann Vitodens 333

  • Page 1 VIESMANN Service instructions for heating engineers Vitodens 333 Type WS3A Compact gas fired condensing boiler 4.2 to 13 kW natural gas version 6.6 to 26 kW natural gas and LPG version For applicability, see the last page VITODENS 333 Please keep safe...

  • 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 For replacements, use only ori- ginal spare parts from Viessmann or those which are approved by Viessmann.

  • Page 4: Table Of Contents

    Index Index Initial start-up, inspection, maintenance Steps – initial start-up, inspection and maintenance ........Further details regarding the individual steps ..........Coding Code 1......................39 Code 2......................41 Resetting codes to the delivered condition ..........60 Service scans Service level summary ................61 Temperatures, boiler coding card and brief scans ........

  • Page 5: Initial Start-Up, Inspection, Maintenance

    Initial start-up, inspection, maintenance Steps – initial start-up, inspection and maintenance For further information regarding individual steps, see the pages indicated. Commissioning steps Inspection steps Maintenance steps Page • 1. Filling the heating system ..........•...

  • Page 6: Commissioning Steps

    Initial start-up, inspection, maintenance Steps – initial start-up, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page • • 20. Checking the condensate drain and cleaning the siphon ..................•...

  • Page 7: Further Details Regarding The Individual Steps

    Initial start-up, inspection, maintenance Further details regarding the individual steps Filling the heating system Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage. & Thoroughly flush the entire heating system prior to filling with water. &...

  • Page 8: Venting The Boiler

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the pri- mary side. 2. Connect the drain hose on valve A with a drain outlet. 3. Open valve A and fill valve in the heating return and vent at mains pressure, until no sound of escap- ing air can be heard.

  • Page 9: Filling The Siphon With Water

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Filling the siphon with water 1. Remove the retaining clip and siphon A. 2. Fill the siphon with water. 3. Fit the siphon A and secure with the retaining clip. Setting the time and date (if required) –...

  • Page 10: Pivot Down The Control Unit For Commissioning And Maintenance Work

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Pivot down the control unit for commissioning and mainte- nance work A Control unit C Flap B Closures D Retaining frame 1. Open flap C. 3. Release the side screws and pivot control unit A down with its retain- 2.

  • Page 11: Checking The Gas Type

    Further details regarding the individual steps (cont.) Checking the gas type Note In the delivered condition, the Vitodens 333 is set up for natural gas E. The boiler can be operated in the Wobbe index range 12.0 to 16.1 kWh/m (43.2 to 58.0 MJ/m 1.

  • Page 12: Function Sequence And Possible Faults

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Gas restrictor allocation Rated output Gas restrictor, internal 7 & Natural gas E 5.95 & Natural gas LL 6.73 — & LPG P Function sequence and possible faults Display screen Measures Control unit is- Increase set...

  • Page 13: Checking The Static And Supply Pressure

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Gas combination Fault F4 Check the gas valve opens combination valve (control voltage 230 V); check the gas supply pres- sure Ionisation cur- Fault F4 Check ionisation rent builds current, check (higher than electrode adjust-...
  • Page 14 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 4. Record the static pressure and record it in the service report on page 117. Set value: max. 57.5 mbar 5. Start up the boiler. Note During commissioning, the boiler can enter a fault state because of airlocks in the gas pipe.

  • Page 15: Setting The Max. Output

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 8. Shut down the boiler, close the gas 9. Open the gas shut-off valve and shut-off valve, remove the pressure start the boiler. gauge and close test nipple A with the screw.
  • Page 16 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) We recommend that your heating engineer carries out a simple leak test during the commissioning of your system. For this it would be sufficient to check the concentration in the combustion air at the annular gap of the balanced flue pipe.

  • Page 17: Removing The Burner And Checking The Burner Gasket (Replace Gasket Every Two Years)

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Removing the burner and checking the burner gasket (replace gasket every two years) A Nuts F Ionisation electrode B Differential pressure sensor G Earth stud C Burner gasket H Fan motor D Gas supply pipe K Ignition device E Gas train...

  • Page 18: Checking The Burner Gauze Assembly

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the burner gasket C for damage. Generally replace the burner gas- ket every 2 years. Checking the burner gauze assembly Replace the burner gauze assembly if the wire mesh is damaged. A Torx screws D Ionisation electrode B Burner gauze...

  • Page 19: Checking And Adjusting The Ignition And Ionisation Electrodes

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Checking and adjusting the ignition and ionisation electro- A Ignition electrodes B Ionisation electrode C Gasket 1. Check electrodes A and B for 3. Check clearances. If the gaps are wear and contamination.

  • Page 20: Cleaning The Combustion Chamber/Heating Surfaces And Fitting The Burner

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the combustion chamber/heating surfaces and fit- ting the burner 2. Apply a solvent/potassium-free cleaning agent if residues remain: & Remove soot deposits with alka- line cleaning agents with addi- tional surfactants (e.g.

  • Page 21: Siphon

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Checking the condensate drain and cleaning the siphon 1. Check that the condensate can freely drain at siphon A. 2. Remove the retaining clip and the siphon. 3. Clean the siphon. 4.

  • Page 22: Cleaning The Dhw Cylinder

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the DHW cylinder Note DIN 1988 requires a visual inspection and (if necessary) cleaning every two years after the cylinder has been taken into use and thereafter according to requirements.

  • Page 23: Returning The Dhw Cylinder To Use

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Returning the DHW cylinder to use A Flange lid C Earth cable B Gasket D Push-on tab 1. Reconnect the DHW cylinder to the 3. Fit the flange lid and tighten the pipework.

  • Page 24: Flue Gas Emissions Test

    (cont.) Flue gas emissions test The Vitodens 333 is set up in the factory for natural gas E and can, with the aid of a conversion kit, be converted to natural gas LL or LPG P (only 26 kW). During commissioning or maintenance, check the CO level at the flue outlet.
  • Page 25 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 5. Record the actual value on 7. Check the CO content. If the value page 117 of the commissioning/ lies outside the above range, take service report. the measures listed on page 24. 8.

  • Page 26: Checking The Ionisation Current

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Checking the ionisation current 2. Adjusting the upper output: Constant temperature control unit: Press K + d simultaneously: "1" is shown. Press a: "2" is shown. Weather–compensated control unit: Press K + d simultaneously: "Relay test"...

  • Page 27: Matching The Control Unit To The Heating System

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 5. Record the actual value in the ser- vice report on page 117. Matching the control unit to the heating system Note The control unit must be matched to the system equipment. Various system components are recognised automatically by the control unit and the relevant codes adjusted automatically.
  • Page 28 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Required coding Operation with LPG 1E:1 System version 2 One heating circuit with mixer M2 and a low loss header Outside temperature sensor Low loss header Flow temperature sensor Extension kit for a heating circuit sÖ...
  • Page 29 Initial start-up, 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 Outside temperature sensor Maximum temperature thermo- Flow temperature sensor stat (underfloor heating) sÖ Heating circuit pump Extension kit for a heating circuit Power supply (extension kit)
  • Page 30 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation Outside temperature sensor Extension kit for a heating circuit Flow temperature sensor with mixer sÖ...
  • Page 31 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) System version 5 One heating circuit with mixer M2 (with extension kit), one heating circuit with mixer (with the Vitotronic 050) and low loss header Outside temperature sensor Extension kit for a heating circuit Flow temperature sensor with mixer sÖ...
  • Page 32 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the heating curves (only for control units for weather-compensated operation) The heating curves illustrate the rela- The room temperature, again, tionship between the outside tem- depends on the boiler water or the perature and the boiler water or the flow temperature.
  • Page 33 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Changing slope and level 1. Change the slope with coding address "d3" in code 1 (see page 39). Setting range 2 to 35 (equals slope 0.2 to 3.5). 2. Change the level in coding address "d4"...
  • Page 34 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the set room temperature Standard room temperature Press the following keys: 1. a "1r" flashes. 2. d to select heating circuit A1 (heating circuit without mixer) 3. a "2r" flashes. 4.
  • Page 35 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Reduced room temperature Press the following keys: 1. a "1r" flashes. 2. d to select heating circuit A1 (heating circuit without mixer) 3. a "2r" flashes. 4. d to select heating circuit M2 Example 2: Adjustment of the reduced (heating circuit with mixer) room temperature from 5 °C to 14 °C...
  • Page 36 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Updating the LON user list Note Only possible if all users are connected and the control unit is programmed to be fault manager (code "79:1"). 2. e Press the following keys: The user list is updated after approx.

  • Page 37: Instructing The System User

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Implementing a user check (in conjunction with the LON sys- tem with a weather-compensated control unit) Communication with the system devices connected to the fault manager is tested with a user check. Preconditions: &...

  • Page 38: Scanning And Resetting The "Maintenance" Display

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Scanning and resetting the "maintenance" display The red fault indicator flashes when the limits set via coding addresses "21" and "23" have been reached. As regards the programming unit display: &...

  • Page 39: 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. 3. d & Codes which are irrelevant (due to to confirm. the system equipment level or the 4.
  • Page 40 Coding Code 1 (cont.) Coding in the delivered condition Possible change Max. boiler temp. 06:... Maximum limit of the 06:20 Maximum limit of the boil- boiler water tempera- er water temperature ture, defaulted in °C by 06:127 within the ranges de- the boiler coding card faulted by the boiler Gas type...
  • Page 41 Coding Code 1 (cont.) Coding in the delivered condition Possible change Slope A1/M2 d3:14 Heating curve slope = d3:2 Heating curve slope ad- 1.4 (only for weather- justable from 0.2 to 3.5 compensated control d3:35 (see page 32) units) Level A1/M2 d4:0 Heating curve slope = 0 d4:–13...
  • Page 42 Coding Code 2 (cont.) The areas are scanned in the following sequence with a/b: Function area Coding addresses System design Boiler/burner 06 to 54 56 to 73 General 76 to 9F Heating circuit A1 (heating circuit without A0 to Fb mixer) Heating circuit M2 (heating circuit with A0 to Fb...

  • Page 43: Code 2

    Coding Code 2 (cont.) Coding in the delivered condition Possible change 23:0 No time interval for 23:1 Interval adjustable from 1 burner maintenance to 24 months 23:24 24:0 No "Maintenance" dis- 24:1 "Maintenance" display play (the address is automati- cally set and must be manually reset after a service has been carried out)
  • Page 44 Coding Code 2 (cont.) Coding Internal circu- Heating circuit Heating circuit Cylinder pri- lation pump pump pump mary pump Heating circuit Heating circuit without mixer with mixer Control funct. Control funct. Control funct. Control funct. Control funct. Control funct. Control funct. Control funct.
  • Page 45 Coding Code 2 (cont.) Coding Internal circu- Heating circuit Heating circuit Cylinder pri- lation pump pump pump mary pump Heating circuit Heating circuit without mixer with mixer Control funct. Control funct. Control funct. Control funct. Control funct. Control funct. Control funct. Control funct.
  • Page 46 63:14 63:15 2 x daily 65:... Information regarding 65:0 Without diverter valve the type of diverter 65:1 Viessmann diverter valve valve; do not adjust. 65:2 Wilo diverter valve 65:3 Grunfos diverter valve 67:40 With the Vitosolic: 67:0 Without third set DHW...
  • Page 47 Coding Code 2 (cont.) Coding in the delivered condition Possible change 71:0 DHW circulation pump: 71:1 "OFF" during DHW heat- "ON" subject to DHW ing to the first set value time program (for the 71:2 "ON" during DHW heat- Vitotrol 300, separate ing to the first set value switching times are possible) (only for...
  • Page 48 Coding Code 2 (cont.) Coding in the delivered condition Possible change 7b:1 Without LON communi- 7b:0 Do not send time via LON cation module (only for weather-compensated control units) 7F:1 Detached house (only 7F:0 Apartment block for weather-compen- As option, separate ad- sated control units) justment of holiday pro- gram and time program...
  • Page 49 LON BUS to any connected Vitotronic 050. 98:1 Viessmann system 98:1 System number adjusta- number (in conjunction ble from 1 to 5 with monitoring of sev- 98:5...
  • Page 50 Coding Code 2 (cont.) Coding in the delivered condition Possible change 9C:20 Monitoring LON users. 9C:0 No monitoring If a user fails to re- 9C:5 The time is adjustable spond, the values de- from 5 to 60 min faulted inside the 9C:60 control unit will be used after 20 min.
  • Page 51 Coding Code 2 (cont.) Coding in the delivered condition Possible change A3:2 Outside temperature A3:–9 Heating circuit pump below 1 °C: Heating cir- "ON/OFF" (see the fol- cuit pump "ON" A3:15 lowing table) Outside temperature above 3 °C: Heating cir- cuit pump "OFF"...
  • Page 52 Coding Code 2 (cont.) Coding in the delivered condition Possible change Heating circuit A1/M2 A4:0 With frost protection A4:1 No frost protection; this (only for weather-com- setting is only possible if pensated control units) code "A3:-9" has been selected. Note Observe the note for code "A3".
  • Page 53 Coding Code 2 (cont.) Coding in the delivered condition Possible change Heating circuit A1/M2 A6:36 Extended economy A6:5 Extended economy func- function disabled (only tion enabled, i.e. the for weather-compen- A6:35 burner and heating circuit sated control units) pump will be switched OFF and the mixer will be closed at a variable value, which is adjustable...
  • Page 54 Coding Code 2 (cont.) Coding in the delivered condition Possible change A9:7 With pump idle period: A9:0 Without pump idle period Heating circuit pump A9:1 With pump idle period, "OFF" when the set adjustable from 1 to 15 value changes through A9:15 a change in operating mode or through a...
  • Page 55 Coding Code 2 (cont.) Parameter ad- With heating circuit pump logic function: dress b5:... Heating circuit pump "OFF" Heating circuit pump "ON" > RT + 5 K < RT + 4 K Actual Actual > RT + 4 K < RT + 3 K Actual Actual...
  • Page 56 Coding Code 2 (cont.) Coding in the delivered condition Possible change E1:1 With remote control: E1:0 Set day temperature ad- The set day tempera- justable from 3 to 23 °C ture is adjustable at the E1:2 Set day temperature ad- remote control unit from justable from 17 to 37 °C 10 to 30 °C (only for...
  • Page 57 Coding Code 2 (cont.) Coding in the delivered condition Possible change E9:45 Speed of the external E9:0 Speed adjustable from 0 variable speed heating to 100 % of maximum circuit pump: 45 % of E9:100 speed during operation the maximum speed in with reduced room tem- reduced temperature perature...
  • Page 58 Coding Code 2 (cont.) Coding in the delivered condition Possible change F8:–5 Temperature limit for F8:+10 Temperature limit adjus- terminating the reduced table from mode -5 ºC, see exam- F8:–60 +10 to -60 °C ple on page 103. F8:–61 Function disabled Observe the setting of coding address "A3".
  • Page 59 Coding Code 2 (cont.) Coding in the delivered condition Possible change Heating circuit M2 F1:0 Screed drying function F1:1 Screed drying function disabled (only for adjustable in accordance weather-compensated F1:5 with five optional tem- control units) perature/time profiles (see page 101) Note Observe the screed sup- plier's instructions.

  • Page 60: Resetting Codes To The Delivered Condition

    Coding Resetting codes to the delivered condition 3. d Press the following keys: to confirm 1. L + G simultaneously for 4. a/b approx. 2s to select "Basic setting? No". 2. e "Basic settings? Yes" is displayed.

  • Page 61: Service Scans

    Service scans Service level summary Function Key combination Exit Page K and G simultaneously Press d Temperatures, boiler cod- ing card, brief scans for approx. 2 s K and d simultaneously Press d Relay test for approx. 2 s K and F simultaneously Press d Max.

  • Page 62: Temperatures, Boiler Coding Card And Brief Scans

    Service scans Service level summary (cont.) Function Key combination Exit Page L and G simultaneously – Resetting codes to the for approx. 2 s; press e delivered condition Temperatures, boiler coding card and brief scans Constant temperature control unit 2. a/b Press the following keys: for the required scan.
  • Page 63 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Burner control unit type Boiler type Set cylinder temperature Max. output in % Boiler coding card (hexadecimal) Boiler Burner control unit version version Variable Software speed version...
  • Page 64 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Explanation Set mixed flow temp. Low loss header Actual mixed flow temp. Low loss header Boiler coding card Brief scan 1 to 8 Display screen Brief scan Software version Equipment version...

  • Page 65: Checking Outputs (Relay Test)

    Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Boiler Heating circuit A1 Heating circuit M2 (w/o mixer) (with mixer) Remote Software Remote Software control version control version 0: w/o Remote 0: w/o Remote 1: Vitotr- control...
  • Page 66 Service scans Checking outputs (relay test) (cont.) Display screen Explanation Burner modulation full load Internal pump / output 20 "ON" Heating mode diverter valve Valve, centre position DHW valve Output sK Internal extension Heating circuit pump A1 external extension Cylinder primary pump external extension DHW circulation pump external extension Central fault message external extension Weather–compensated control unit...

  • Page 67: Scanning Operating Conditions And Sensors

    Service scans Scanning operating conditions and sensors Constant temperature control units 2. a/b for the required operating Press the following keys: condition. 1. c 3. d End scan. Subject to the actual equipment level, the following operating conditions can be scanned: Display screen Explanation °C/°F...
  • Page 68 Service scans Scanning operating conditions and sensors (cont.) Display screen Explanation Return day Date Outside temperature, ... °C Actual value Boiler water temperature, Actual value ... °C Flow temperature, ... °C Actual value (only for mixer circuit M2) Standard room temperature, ... °C Set value Room temperature, ...

  • Page 69: Troubleshooting

    Troubleshooting Fault display Fault display structure A Fault display C Fault number B Fault symbol D Fault code The red fault indicator flashes for every fault. A fault in the burner control unit causes the display to show "E". Constant temperature control units In case of faults, the fault code and fault symbol will be displayed at the programming unit...

  • Page 70: Troubleshooting Fault Display

    Troubleshooting Fault display (cont.) & Room temperature sensor & Fault - user Checking and acknowledging faults Note If an acknowledged fault is not removed, the fault message will be re-displayed after 24 h. Constant temperature control units 2. d Press the following keys: all fault messages are acknowledged simulta- 1.

  • Page 71: Calling Up Fault Codes From The Fault Memory (Fault History)

    Troubleshooting Calling up fault codes from the fault memory (fault history) 1. G + d simultaneously for The 10 most recent faults are saved and may be scanned. approx. 2 s The faults are ordered according to 2. a/b date, thus the most recent fault is fault for individual fault number 1.
  • Page 72 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Burner Boiler water Check the boiler blocked temperature water tempera- sensor ture sensor (see shorted out page 80) Burner Boiler water Check the boiler blocked temperature water tempera-...
  • Page 73 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Control mode Collector Check sensor temperature sensor shorted out Control mode Solar: Sen- Check sensor sor S3 shorted out Control mode Solar: Cylin- Check sensor der primary temperature...
  • Page 74 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Controls as if Internal fault Replace control the outside unit temperature was 0 °C Control opera- Internal fault Replace control tion as per the unit delivered con- dition...
  • Page 75 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Control mode Communica- Check the con- tion fault - nections and set- solar control tings of coding unit address "54" Control mode, Communica- Check the coding tion error –...
  • Page 76 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Control mode Communica- Replace the LON tion fault - communication LON com- module munication module Control mode Room tem- Check the room without room perature temperature sen-...
  • Page 77 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Burner fault Flue gas/ Check the flue ventilation gas/ventilation system system and differ- blocked ential pressure sensor; press "E" Burner Internal fault Replace control blocked unit...
  • Page 78 Troubleshooting Fault codes (cont.) Fault Const. Weath.- System char- Cause Remedy code in comp. acteristics the dis- play Burner fault The fuel Check the gas valve closes combination valve too late and both control paths; press "E" Burner fault Fan speed Check the fan, fan too low dur- connecting...

  • Page 79: Repairs

    Troubleshooting Repairs Checking the outside temperature sensor (weather-compen- sated control unit) 1. Pull plug "X3" off the control unit. 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.
  • Page 80 Troubleshooting Repairs (cont.) Check the boiler temperature sensor, cylinder primary tem- perature sensor or flow temperature sensor for the low loss header A Boiler water temperature sensor...
  • Page 81 Troubleshooting Repairs (cont.) & Boiler water temperature sen- Pull the leads off the boiler tem- perature sensor and check the resistance. & Cylinder primary temperature sensor Pull the plug % from the cable harness on the control unit and measure the resistance. &...
  • Page 82 Troubleshooting Repairs (cont.) Check the outlet temperature sensor 1. Pull the leads off the outlet tem- perature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in cases of severe deviation. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding).
  • Page 83 Troubleshooting Repairs (cont.) 1. Pull the leads off the flue gas tem- perature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in cases of severe deviation. Checking the plate-type heat exchanger Drain the primary and secondary side of the boiler.
  • Page 84 Troubleshooting Repairs (cont.) 1. Shut off and drain the boiler on the primary and the secondary side. 2. Release the side closures and pivot the control unit forward. 3. Remove the siphon. 4. Release the compression fittings A, screws B and pull out the plate-type heat exchanger C.
  • Page 85 Troubleshooting Repairs (cont.) 1. Pull the leads off the temperature limiter. 2. Check the continuity of the tem- perature limiter with a multimeter. 3. Remove the faulty temperature lim- iter. 4. Coat the replacement temperature limiter with heat conducting paste and install.
  • Page 86 Troubleshooting Repairs (cont.) Checking O-rings: A O-rings C Plug-in connection B Sensor D Adaptor 1. Pull off electrical plug C. 4. Insert the sensor with connection nipples into the gas combination 2. Remove sensor B by pulling it valve adaptor and push in until it upwards.
  • Page 87 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch OFF the power. 3. Remove the cover. 2. Release the side closures and 4. Check the fuse F1 (see connection pivot the control unit down. and wiring diagram).
  • Page 88 Troubleshooting Repairs (cont.) Extension kit for heating circuit with mixer Checking the rotational direction of Changing the rotational direction of the mixer motor the mixer motor (if required) Danger An electric shock can be life-threatening. When opening the equip- ment, switch OFF the ON/ OFF switch and mains vol- tage, for example at the fuse or the mains isolator.
  • Page 89 Troubleshooting Repairs (cont.) & & Switch position I for central heating Switch position II for central heating return from the left (delivered condi- return from the right. tion). Checking the Vitotronic 050 (accessories) The Vitotronic 050 is connected with the control unit via the LON connecting cable.

  • Page 90: Function Description

    Function description Constant temperature control unit Controls and display elements A Pressure gauge E Control panel: B Fault display (red) Set boiler water tem- C ON indicator (green) perature D Reset button Set DHW temperature O+F Emissions test function Standby mode: DHW only Heating and DHW No function...
  • Page 91 Function description Constant temperature control unit (cont.) Heating the DHW storage cylinder from cold The heating circuit pump is switched The cylinder is then heated up to the ON and the three-way diverter valve set DHW temperature. Heating stops will be changed over, if the cylinder when the set temperature has been primary temperature sensor captures reached at the cylinder primary tem-...

  • Page 92: Weather-Compensated Control Unit

    Function description Weather–compensated control unit Controls and display elements A Pressure gauge E Control panel: B Fault display (red) Time program, central C ON indicator (green) heating D Reset button Time program DHW heating/DHW circulation pump (if connected to the control unit) Holiday mode Date/time Reduced room tempera-...

  • Page 93: Heating Mode

    Function description Weather–compensated control unit (cont.) Heating mode The control unit determines a set boil- The boiler water temperature will be er water temperature subject to the limited: & outside temperature or room tempera- to 74 °C by the thermostat inside the ture (if a room temperature-dependent burner control unit.
  • Page 94 Function description Weather–compensated control unit (cont.) The heating circulation pump is The DHW is regulated to the set tem- switched ON and the three-way diver- perature via the cylinder primary tem- ter valve is changed over, if the cylin- perature sensor. der primary temperature sensor The cylinder continues to be heated captures a temperature lower than the...

  • Page 95: Extensions For External Connections

    Function description Extensions for external connections Internal extension H1 The internal extension H1 is inte- An external safety valve can be con- nected to gD. grated into the control unit casing. The cylinder primary pump is con- nected to relay output sK.
  • Page 96 Function description Extensions for external connections (cont.) Internal extension H2 (accessories) The internal extension H2 is inte- An external extractor fan interlock can be connected to aBJ. grated into the control unit casing instead of the internal extension H1. The cylinder primary pump is con- nected to relay output sK.
  • Page 97 Function description Extensions for external connections (cont.) External extension H1 (accessories) & 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) &...
  • Page 98 Function description Extensions for external connections (cont.) External extension H2 (accessories) & 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) &...

  • Page 99: Control Functions

    Function description Control functions External heating program changeover The "Ext. heating program changeover" function is connected via the external extension input "aVD". Coding address "91" enables the selection of which heat- ing circuits the heating program changeover should affect: The heating program changeover affects: Coding No changeover 91:0...
  • Page 100 Function description Control functions (cont.) External demand The "External demand" function is In coding address "9b" you can select connected via the external extension the minimum set boiler water tem- input "aVD". perature in case of external demand. In coding address "34" you can select the influence the signal "External demand"...
  • Page 101 Function description Control functions (cont.) Screed function The screed function enables the dry- You can select various temperature ing of screed. For this, always profiles. observe the details specified by the screed manufacturer. Temperature profile: Diagram 1 (DIN 4725 part 4) code "F1:1" Temperature profile: Diagram 2 (ZV parquet and flooring technology) code "F1:2"...
  • Page 102 Function description Control functions (cont.) Temperature profile: Diagram 4 code "F1:4" Temperature profile: Diagram 5 code "F1:5" Temperature profile: Diagram 6 code "F1:6" (delivered condition)
  • Page 103 Function description Control functions (cont.) 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 the coding raised subject to outside temperature.
  • Page 104 Function description Control functions (cont.) Reducing the heat-up time During the transition from operation The value and duration for the addi- with reduced room temperature into tional increase of the set boiler water operation with standard room tem- temperature or flow temperature can perature, the boiler water or flow tem- be adjusted in the coding addresses perature will be raised in accordance...

  • Page 105: Remote Control Dip Switch

    Function description Remote control DIP switch The DIP switches are located on the PCB in the top part of the housing. 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"...

  • Page 106: Designs

    Designs Connection and wiring diagram – internal connections Main PCB Cylinder temperature sensor X... Electrical interfaces Ionisation electrode § Boiler water temperature sen- Flue gas temperature sensor dÖ Stepper motor for diverter Draw-off temperature sensor valve...
  • Page 107 Designs Connection and wiring diagram – internal . . . (cont.) a-ÖA Fan motor Thermocouple Ignition device Differential pressure sensor...

  • Page 108: Connection And Wiring Diagram - External Connections

    Designs Connection and wiring diagram – external connections Main PCB Power supply unit...
  • Page 109 Designs Connection and wiring diagram – external . . . (cont.) Optolink Flow temperature sensor - low Burner control unit loss header Programming unit Cylinder temperature sensor sÖ Coding card Internal circulation pump Connection adaptor Primary pump Communication module LON Gas solenoid valve fÖ...

  • Page 110: Parts Lists

    Parts lists Parts lists Spare parts information Quote the part and serial no. (see type plate) and the item no. of the required part (as per this parts list). Obtain standard parts from your local supplier. 037 Gasket set – plate-type heat 001 Heat exchanger connecting pipe with gaskets exchanger...

  • Page 111: Type Plate

    Parts lists Parts lists (cont.) 125 Fuse holder 039 Heat conducting paste 151 Outside temperature sensor 062 Burner maintenance set 152 Cylinder temperature sensor 063 Set of small burner parts 153 Flue gas temperature sensor 065 Pressure sensor adaptor 154 Thermocouple 115 Ionisation current test lead adap- 155 Temperature sensor 200 Side panels...
  • Page 112 Parts lists Parts lists (cont.)
  • Page 113 Parts lists Parts lists (cont.)
  • Page 114 Parts lists Parts lists (cont.)
  • Page 115 Parts lists Parts lists (cont.)
  • Page 116 Parts lists Parts lists (cont.)

  • Page 117: Commissioning/Service Reports

    Commissioning/service reports Commissioning/service reports Setting and test values Set value Initial Mainte- start-up nance/ser- vice 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...

  • Page 118: Specification

    Specification Specification Rated voltage 230 V~ Electronic tempera- Rated frequency 50 Hz~ ture limiter setting: 82 °C Rated current 6 A~ Temperature limiter Protection class setting 100 °C (fixed) Protection IP X 4 D to Line fuse (mains) max. 16 A EN 60529 Power consumption Permissible ambient temperature...

  • Page 119: Certificates

    Certificates Declaration of conformity Declaration of conformity for the Vitodens 333 We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, confirm as sole responsible body that the product Vitodens 333 complies with the following standards: DIN 4702–6 EN 50 165...

  • Page 120: 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 Vitodens 333 product meets the NO limits specified by the first BImSchV § 7 (2) [Germany]. Allendorf 12.07.05 Viessmann Werke GmbH&Co KG...

  • Page 121: Keyword Index

    Keyword index Keyword index Acknowledging a fault display Fault codes ........Adjusting the room temperature Fault display structure .
  • Page 122 Keyword index Keyword index (cont.) Outlet temperature sensor Safety chain ..........Outside temperature sensor Scanning .
  • Page 124 4.2 to 13 kW from serial no. 7190 613 ... 6.6 to 26 kW from serial no. 7190 614 ... Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telefon: +49 6452 70-0 Shropshire, TF1 7YP, GB Telefax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.de...

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