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

Compact gas fired condensing boiler. 4.2 to 19 kw natural gas and lpg version
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VIESMANN
Service instructions
for heating engineers
Vitodens 333
Type WS3B
Compact gas fired condensing boiler
4.2 to 19 kW natural gas and LPG version
For applicability, see the last page
Please keep safe
5692 568 GB
12/2005

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Summary of Contents for Viessmann Vitodens 333

  • Page 1 VIESMANN Service instructions for heating engineers Vitodens 333 Type WS3B Compact gas fired condensing boiler 4.2 to 19 kW natural gas and LPG version For applicability, see the last page Please keep safe 5692 568 GB 12/2005...
  • 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 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......................42 Code 2......................44 Resetting codes to the delivered condition ..........61 Service scans Service level overview ................62 Temperatures, boiler coding card and brief scans ........
  • Page 5 Index Index (cont.) Keyword index ..................122...

  • Page 6: Initial Start-Up, Inspection, Maintenance Steps Initial Start-Up, Inspection And 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 ..........2.
  • Page 7 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 ..................21.

  • Page 8: Commissioning Steps

    Initial start-up, inspection, maintenance Steps initial start-up, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page 39. Locking the control unit and fitting the front panels ..................

  • Page 9: 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 it with water. Only use fill water of potable quality.

  • Page 10: 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 heating water side. 2. Connect the drain hose on valve A with a drain outlet. 3. Open valve A and the fill valve in the heating return and vent at mains pressure, until no sound of escaping air can be heard any-...

  • Page 11: 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 siphon A and secure with the retaining clip. Setting the time and date (if required) only for weather compensated control units...

  • Page 12: Pivoting Down The Control Unit For Commissioning And Maintenance Work

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Pivoting down the control unit for commissioning and main- tenance work 1. Undo two screws and push panel 3. Release the side closures C and A up and to the left. pivot control unit D forward.

  • Page 13: Gas Type Conversion (Only For Operation With Lpg)

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) For natural gas, there is consequently no adjustment required across the entire Wobbe range. The boiler can be operated in the Wobbe index range 10.0 to 16.1 kWh/m (36.0 to 58.0 MJ/m Adjust the burner for operation with LPG (see "Changing the gas type"...

  • Page 14: Function Sequence And Possible Faults

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Function sequence and possible faults Display screen Measures Control unit is- Increase set sues heat de- value and ensure mand heat is drawn off Fan starts after approx. 51 s Check fan cables Fault F9 and plugs...

  • Page 15: Checking The Static And Supply Pressure

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Burner in opera- Stops below set Check flue gas tion boiler water tem- system for sound- perature and re- ness (flue gas re- starts circulation), check gas flow pressure Automatic cali- Fault Eb Check the electri-...
  • Page 16 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 1. Close the gas shut off valve. 2. Release screw A inside test nipple "PE" on the gas combination valve, but do not remove it; then connect the pressure gauge. 3.

  • Page 17: Setting The Maximum Output

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Supply (flow) Supply (flow) Measures pressure for nat- pressure for ural gas below 17.4 mbar below 42.5 mbar Do not start the boiler. Notify your mains gas or LPG supplier. 17.4 to 57.5 mbar 42.5 to Start the boiler.

  • Page 18: Checking The Balanced Flue System Soundness (Annular Gap Check)

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 2. K + F press simultaneously: 3. Record the setting for max. output "100" flashes (equals on the additional type plate sup- 100% of rated output) plied with the "technical documen- and "A"...

  • Page 19: 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) 1. Switch OFF the control unit ON/ 5. Release four nuts G and remove OFF switch and the power supply. the burner.

  • Page 20: Checking The Burner Gauze Assembly

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Checking the burner gauze assembly Replace the burner gauze assembly if the wire gauze is damaged. 1. Remove electrodes A. 4. Insert a new burner gauze assem- bly with a new gasket and secure 2.

  • Page 21: 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 1. Check the electrodes for wear and 3. Check clearances. If the gaps are contamination. not as specified or the electrodes are damaged, replace and align the 2.

  • Page 22: 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 23: Checking The Condensate Drain And Cleaning The Siphon

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

  • Page 24: 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 required) cleaning every two years after the cylinder has been taken into use and thereafter according to require- ments.

  • Page 25: Returning The Dhw Cylinder Into Use

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Returning the DHW cylinder into use 1. Reconnect the DHW cylinder to the 4. Push earth lead C onto tab D. pipework. 5. Fit cover E. 2. Insert new gasket B underneath flange lid A.

  • Page 26: Checking The Combustion Quality

    Initial start-up, 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 27 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 5. Record the actual value on 7. Check the CO content. Should the page 118 of commissioning/service actual value deviate by more than report. 1% from the above range, imple- ment steps from page 26.

  • Page 28: 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: K + d press simultaneously: "1" is shown. press: "2" is shown. Weather compensated control unit: K + d press simultaneously: "Relay test"...
  • Page 29 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) System version 1 One heating circuit without mixer A1 ! Outside temperature sensor (only lH Vitotrol 100 (only for constant for weather compensated control temperature control units) units) Required coding Address Operation with natural gas (delivered condition) 82:0...
  • Page 30 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) 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 one heating cir- sÖ...
  • Page 31 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 thermostat (underfloor Flow temperature sensor heating) sÖ Heating circuit pump Extension kit for one heating cir- Power supply (extension kit) cuit with mixer...
  • Page 32 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 one heating cir- Flow temperature sensor cuit with mixer sÖ...
  • Page 33 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 one heating cir- Flow temperature sensor cuit with mixer sÖ...

  • Page 34: Adjusting The Heating Curve (Only For Weather Compensated Control Units)

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the heating curve (only for weather compensated control units) 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 35 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 42). Setting range 2 to 35 (equals slope 0.2 to 3.5). 2. Change the slope with coding address "d4"...
  • Page 36 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 37: Connecting The Control Unit To The Lon System (Only For Weather Compensated Control Units)

    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).
  • Page 38 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Note In the same LON system, the same number cannot be allocated twice. Only one Vitotronic may be programmed as fault manager. Boiler control Vitotronic 050 Vitotronic 050 Vitocom unit User no.

  • Page 39: Implementing A User Check (In Conjunction With The Lon System For Weather Compensated Control Units)

    Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Implementing a user check (in conjunction with the LON sys- tem for weather compensated control units) Communication with the system devices connected to the fault manager is tested with a user check. Preconditions: The control unit must be programmed as fault manager (code "79:1").

  • Page 40: 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 address "21" and "23" have been reached. As regards the programming unit display: On a constant temperature control unit: The defaulted hours run or the defaulted interval with clock symbol "u"...
  • Page 41 Initial start-up, inspection, maintenance Further details regarding the individual steps (cont.) Locking the control unit and fitting the front panels 1. Push panel A to the right and 2. Fit front panel B at the bottom and down, then tighten both screws. tighten screws C.

  • Page 42: 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, which are irrelevant (due to 3. d to confirm the system equipment level or the setting of other codes) will not be 4.
  • Page 43 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 Venting/filling...

  • Page 44: Code 2

    Coding Code 1 (cont.) Coding in the delivered condition Possible change Level A1/M2 d4:0 Heating curve slope = 0 d4: 13 Heating curve level ad- (only for weather com- justable from 13 to 40 pensated control units) d4:40 (see page 34) Code 2 Calling up code 2 Note...
  • Page 45 Coding Code 2 (cont.) 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 mixer) Note For heating systems with one heating circuit without mixer and one heating cir-...
  • Page 46 Coding Code 2 (cont.) Coding in the delivered condition Possible change 21:0 No maintenance inter- 21:1 The number of hours run val (hours run) selected before the burner should 21:9999 be serviced is adjustable from 1 to 9999 h 23:0 No time interval for 23:1 Interval adjustable from 1...
  • Page 47 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 48 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 49 65:... Information regarding 65:0 Without diverter valve the type of diverter 65:1 Diverter valve by valve; do not adjust. Viessmann 65:2 Diverter valve by Wilo 65:3 Diverter valve by Grund- 6C:100 Set speed; internal pri- mary pump for DHW heating 100%.
  • Page 50 Coding Code 2 (cont.) Coding in the delivered condition Possible change 71:0 DHW circulation pump: 71:1 "OFF" during DHW heat- "ON" in accordance ing to the first set value with the time program 71:2 "ON" during DHW heat- (only for weather com- ing to the first set value pensated control units) 72:0...
  • Page 51 Coding Code 2 (cont.) Coding in the delivered condition Possible change 7F:1 Detached house (only 7F:0 Apartment block for weather compen- Separate adjustment for sated control units) holiday program and time program for DHW heat- ing, as option 80:1 A fault message is dis- 80:0 Immediate fault message played, providing a fault...
  • Page 52 (only for weather compensated control units) 98:1 Viessmann system 98:1 System number adjusta- number (in conjunction ble from 1 to 5 with monitoring of sev- 98:5 eral systems via...
  • Page 53 Coding Code 2 (cont.) Coding in the delivered condition Possible change 9F:8 Differential temperature 9F:0 Differential temperature 8 K; only in conjunction adjustable from 0 to 40 K with the mixer circuit 9F:40 (only for weather com- pensated control units) Heating circuit A1/M2 A0:0 Without remote control...
  • Page 54 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.
  • Page 55 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 56 Coding Code 2 (cont.) Coding in the delivered condition Possible change A9:7 With pump idle time: A9:0 Without pump idle time Heating circuit pump A9:1 With pump idle time, ad- "OFF" if the set value justable from 1 to 15 alters through a change A9:15 in operating mode or...
  • Page 57 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 58 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 59 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 the maximum circuit pump: 45% of the E9:100 speed during operation maximum speed in re- with reduced room tem- duced temperature perature...
  • Page 60 Coding Code 2 (cont.) Coding in the delivered condition Possible change F7:25 In "Standby mode", the F7:0 In "Standby mode", the internal circulation internal circulation pump pump is permanently is permanently OFF ON (only for constant F7:1 In "Standby mode", the temperature control internal circulation pump units)

  • Page 61: Resetting Codes To The Delivered Condition

    Coding Code 2 (cont.) Coding in the delivered condition Possible change Fb:30 Duration for raising the Fb:0 Duration adjustable from set boiler water tem- 0 to 300 min; perature or the set flow Fb:150 1 step 2 min) temperature (see cod- ing address "FA") 60 min.

  • Page 62: Service Scans

    Service scans Service level overview Function Key combination Exit Page Temperatures, boiler cod- K and G approx. 2 s si- Press d ing card, brief scans multaneously Relay test K and d approx. 2 s si- Press d multaneously Max. output (heating K and F approx.

  • Page 63: Temperatures, Boiler Coding Card And Brief Scans

    Service scans Temperatures, boiler coding card and brief scans Constant temperature control units Press the following keys: 2. a/b for the required scan. 1. K + G simultaneously for 3. d to terminate the scan. approx. 2 s. The following values can be scanned, subject to the actual equipment level: Display screen Brief scan...
  • Page 64 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Variable Software speed version pump variable 0 w/o speed pump 1 Wilo 0: without 2 Grundfos variable speed pump Weather compensated control units Press the following keys: 2.
  • Page 65 Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Software version Equipment version Burner control unit Control version System designs 01 Number Maximum demand temperature to 06 of KM users Software Software Software Software version version...

  • Page 66: Checking Outputs (Relay Test)

    Service scans Temperatures, boiler coding card and brief . . . (cont.) Display screen Brief scan Internal circulation Heating circuit pump to connection ex- pump tension Variable Software Variable Software Variable Software speed version speed version speed version pump variable pump variable pump...

  • Page 67: Scanning Operating Conditions And Sensors

    Service scans Checking outputs (relay test) (cont.) Display screen Explanation Central fault external extension Weather compensated control units Press the following keys: 2. a/b control relay outputs. 1. K + d simultaneously for 3. d to terminate the relay approx. 2 s. test.
  • Page 68 Service scans Scanning operating conditions and sensors (cont.) The following operating conditions can be scanned subject to the actual equipment level: Display screen Explanation °C/°F Actual outside temperature °C/°F Actual boiler water temperature °C/°F Actual primary temperature Burner hours run (after maintenance, reset with e to "0") 263572 Burner starts (after maintenance, reset with e to "0") 030529...
  • Page 69 Service scans Scanning operating conditions and sensors (cont.) Display screen Explanation Mixed flow temp., ... °C Actual value, only with low loss header Burner, ...h Actual hours run Burner starts, ... Hours run and burner starts (reset after mainte- nance with e to "0") Time Date Burner OFF/ON...

  • Page 70: Troubleshooting

    Troubleshooting Fault display Fault display design 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 71: Calling Up Fault Codes From The Fault Memory (Fault History)

    Troubleshooting Fault display (cont.) Room temperature sensor User fault Checking and acknowledging faults Note If an acknowledged fault is not removed, the fault message will be re displayed: On a constant temperature control unit after 24 h On a weather compensated control unit at 07:00 h the next day Constant temperature control units Press the following keys: 2.

  • Page 72: Fault Codes

    Troubleshooting Calling up fault codes from the fault memory (fault . . . (cont.) 2. a/b for individual fault codes. Note All saved fault codes can be deleted with e. Press the following keys: 4. d terminate the scan. 1. G + d simultaneously for approx.
  • Page 73 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Burner Boiler water Check the boiler blocked temperature water tempera- sensor ture sensor (see shorted out page 81) Burner Boiler water Check the boiler blocked temperature water tempera- sensor lead...
  • Page 74 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Burner Flue gas Check the flue blocked temperature gas temperature sensor sensor shorted out Control mode Communica- Check connec- as per the de- tion error; tions and replace livered condi- program-...
  • Page 75 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Control mode Vitotrol re- Check remote mote control control DIP switch incorrectly settings (see encoded page 105) Control mode Incorrect Replace the LON LON com- communication munication module...
  • Page 76 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code 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- influence sensor, heat- heating cir-...
  • Page 77 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Burner Fault flame Check the ionisa- blocked amplifier tion electrode and leads. Check the flue gas system for soundness. Press "E" and re- place the control unit, if required.
  • Page 78 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Burner control Internal fault Replace the con- unit fault trol unit Burner Internal fault Replace the con- blocked trol unit Burner control Flue gas Check flue gas unit fault temperature path/route;...
  • Page 79 Troubleshooting Fault codes (cont.) Display Const. Weath. System char- Cause Remedy fault comp. acteristics code Burner control Fan speed Check the fan, fan unit fault too low dur- connecting ing burner cables, fan power start supply and con- trol; press "E" Burner control Fan not at Check the fan, fan...

  • Page 80: Repairs

    Troubleshooting Repairs Checking the outside temperature sensor (weather compen- sated control unit) 1. Pull plug "X3" from 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 81 Troubleshooting Repairs (cont.) Checking the boiler temperature sensor, cylinder primary temperature sensor or flow temperature sensor for the low loss header A Boiler water temperature sensor % Plug for the cylinder primary tem- perature sensor...
  • Page 82 Troubleshooting Repairs (cont.) Boiler water temperature sen- 2. Check the sensor resistance and compare the actual values with the Pull the leads from boiler tem- curve. perature sensor A and check the resistance. 3. Replace the sensor in case of Cylinder temperature sensor severe deviation.
  • Page 83 Troubleshooting Repairs (cont.) 3. Replace the sensor in case of severe deviation. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding). Drain the secondary side of the boiler before replacing the sensor. Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded.
  • Page 84 Troubleshooting Repairs (cont.) 3. Replace the sensor in case of severe deviation. Checking the plate type heat exchanger Drain the primary and secondary side 1. Shut off and drain the boiler on the of the boiler. primary and the secondary side. During removal, small amounts of water may trickle out and escape from 2.
  • Page 85 Troubleshooting Repairs (cont.) 1. Pull the leads from 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 it.
  • Page 86 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch OFF the power. 3. Remove the cover. 2. Release the side closures and 4. Check fuse F1 (see connection and pivot the control unit down. wiring diagram).
  • Page 87 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. Before opening the equip- ment, switch OFF the ON/ OFF switch and mains vol- tage, for example at the fuse...
  • Page 88 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 89 Troubleshooting Repairs (cont.) Coding Coding in the delivered condition Possible change Burner 7d:0 Air factor correction 0 7d: 5 Note A change is only possible 7d:10 if manual calibration was first carried out via cod- ing address "85". Air factor correction ad- justable from 5 to 10.

  • Page 90: Function Description

    Function description Constant temperature control unit Controls and display elements A Pressure gauge E Operating 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...

  • Page 92: Weather Compensated Control Unit

    Function description Weather compensated control unit Controls and display elements A Pressure gauge E Operating panel: B Fault display (red) Time program, central C ON indicator (green) heating D Reset button DHW heating and DHW circulation pump time programs (if connected to the control unit) Holiday program Date/time...
  • Page 93 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 temperature control- ture (if a room temperature dependent ler inside the 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 loading temperature ter valve is changed over, if the cylin- sensor.

  • 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- grated into the control unit housing. nected to gD. 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 extractor can be switched OFF via grated into the control unit housing connection aBJ when the burner instead of the internal extension H1. starts.
  • 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) neously via the extension: External heating program...
  • 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) neously via the extension: External heating program...

  • Page 99: Control Functions

    Function description Control functions External operating mode changeover The "Ext. operating mode changeover" function is connected via the external extension input "aVD". Coding address "91" enables the selection, which heat- ing circuits the heating program changeover should affect: The operating mode 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 screeds Heat up data with respective flow to be dried. For this, always observe temperatures the details specified by the screed Max. flow temperature achieved manufacturer. Operating condition and outside You can select various temperature temperature during handover.
  • Page 102 Function description Control functions (cont.) Temperature profile 3 code "F1:3" Temperature profile 4 code "F1:4" Temperature profile 5 code "F1:5" Temperature profile 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 the outside tempera- addresses "F8"...
  • Page 104 Function description Control functions (cont.) 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 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 Switches

    "ON". Electronic combustion control unit The electronic combustion control unit To check the combustion quality, the of the Vitodens 333 utilises the physi- content or the O content of the cal correlation between the size of the flue gas is measured. The actual ionisation current and the air factor .
  • Page 106 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 107: 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 Outlet temperature sensor valve...
  • Page 108 Designs Connection and wiring diagram internal . . . (cont.) Thermocouple a-ÖA Fan motor Ignition unit a:Ö Modulation coil...

  • Page 109: Connection And Wiring Diagrams External Connections

    Designs Connection and wiring diagrams external connections Main PCB Power supply unit...
  • Page 110 Designs Connection and wiring diagrams external . . . (cont.) Optolink Flow temperature sensor, low Burner control unit loss header Programming unit Cylinder temperature sensor Coding card sÖ Internal circulation pump Connection adaptor Primary pump LON communication module Gas solenoid valve Internal extension H1 fÖ...

  • Page 111: Parts Lists

    Parts lists Parts lists Spare parts information Quote the part and serial no. (see type plate) and the item number of the required part (as per this parts list). Obtain standard parts from your local supplier. 001 Heat exchanger connecting pipe 037 Gasket set;...
  • Page 112 Parts lists Parts lists (cont.) 201 Top front panel 115 Adaptor, ionisation current test 202 Back top panel cable 203 Front top panel 116 Cable harness X8/X9 204 Front bottom panel 117 Cable harness 100/35/54 (aux- 205 Tie bar iliary earth) 206 Adjustable foot 118 Stepper motor connecting cable 210 Retaining plate...
  • 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 Parts lists Parts lists (cont.)

  • Page 118: Commissioning/Service Reports

    Commissioning/service reports Commissioning/service reports Setting and test values Set value Initial Service start up 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...

  • Page 119: 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 temperatures...

  • Page 120: Certificates

    Condensing boilers. The product characteristics determined as system values for the Vitodens 333 as part of EC type testing according to the Efficiency Direc- tive (see specification table) can be used for the energy assessment of heating and ventilation equipment to DIN V 4701 10.

  • Page 121: 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 333 meets the NO limits specified by the 1st BImSchV paragraph 7 (2) [Germany]. Allendorf 05.12.05 Viessmann Werke GmbH&Co KG...
  • Page 122 Keyword index Keyword index Acknowledging a fault display Electronic combustion control unit 105 ..Adjusting the room temperature Extension kit for heating circuit with ..Anode replacement mixer ..... . .
  • Page 123 Keyword index Keyword index (cont.) Ignition Safety chain .........
  • Page 124 4.2 to 13 kW from serial no. 7177 361 ... 4.8 to 19 kW from serial no. 7194 487 ... 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.com...

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