Viessmann VITODENS 222-F Installation And Service Instructions Manual
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Viessmann VITODENS 222-F Installation And Service Instructions Manual

Gas condensing storage combi boiler
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See also: Technician Manual , Technical Manual
VIESMANN
Installation and service
instructions
for contractors
Vitodens 222-F
Type FS2B, 4.8 to 35 kW
Gas condensing storage combi boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 222-F
Please keep safe.
5457 552 GB
3/2011

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Summary of Contents for Viessmann VITODENS 222-F

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 222-F Type FS2B, 4.8 to 35 kW Gas condensing storage combi boiler Natural gas and LPG version For applicability, see the last page VITODENS 222-F Please keep safe. 5457 552 GB 3/2011...

  • Page 2: Safety Instructions

    Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ all current safety regulations as defined by DIN, EN, DVGW, TRGI, Danger TRF, VDE and all locally applicable This symbol warns against the standards, risk of injury.
  • Page 3 ■ When using gas as fuel, also close the For replacements, use only orig- main gas shut-off valve and safeguard inal spare parts from Viessmann against unauthorised reopening. or those which are approved by ■ Isolate the system from the power sup- Viessmann.

  • Page 4: Table Of Contents

    Index Index Installation instructions Preparing for installation Product information....................Preparing for installation..................Installation sequence Installing the boiler....................10 Opening the control unit casing................13 Electrical connections................... 14 Closing the control unit casing................20 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... 22 Further details regarding the individual steps............
  • Page 5 Index Index (cont.) Weather-compensated control unit..............133 Internal extensions....................136 External extensions (accessories)................ 138 Control functions....................142 Allocating heating circuits to the remote control........... 150 Electronic combustion controller................150 Designs Internal connection diagram................. 152 External connection diagram................153 Parts lists......................155 Commissioning/service reports................

  • Page 6: Preparing For Installation

    Set up for operation with natural gas E and LL. For conversion to LPG P (without conversion kit), see page 30. In principle, the Vitodens 222-F may only be delivered to those countries specified on the type plate. For deliveries to alternative countries, an approved contractor, on his own initiative, must arrange individual approval in accordance with the law of the country in question.
  • Page 7 Preparing for installation Preparing for installation (cont.) A Heating flow R ¾ B DHW R ½ C Gas connection R ¾ D Cold water R ½ E Heating return R ¾ F DHW circulation R ½ (separate accessory) G Condensate drain to the back into the wall H Side condensate drain K Cable entry area...
  • Page 8 Preparing for installation Preparing for installation (cont.) Rated output range 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kW d (mm) 1027 1027 1227 e (mm) 1082 1082 1302 f (mm) 1137 1137 1337 g (mm) 1191 1191 1391 h (mm)
  • Page 9 Preparing for installation Preparing for installation (cont.) 3. Route condensate hose M to the back (drain in wall G) or to the side aperture H (see page 6). Route condensate hose with a U- bend and connect with a fall to on-site drain line or siphon.

  • Page 10: Installation Sequence

    Installation sequence Installing the boiler Assembling the boiler...

  • Page 11: Installing The Boiler

    Installation sequence Installing the boiler (cont.) Connections on the heating water and the DHW side Shown with connection sets for finished walls (accessories) A Heating flow R ¾ D Cold water R ½ B DHW R ½ E Heating return R ¾ C DHW circulation R ½...

  • Page 12: Gas Connection

    Installation sequence Installing the boiler (cont.) Gas connection Information on operation with LPG 2. Carry out a tightness test. We recommend the installation of an external safety solenoid valve when Note installing the boiler in rooms below For the tightness test, use only suita- ground level.

  • Page 13: Flue Outlet

    Installation sequence Installing the boiler (cont.) Please note 3. Vent the gas supply line. Excessive test pressure may damage the boiler and the gas For conversion to a different gas type valve. see page 30 Max. test pressure 150 mbar. Where higher pressure is required for tightness tests, separate the boiler and the...

  • Page 14: Electrical Connections

    Installation sequence Opening the control unit casing (cont.) Electrical connections Information on accessory connection For the connection, observe the separate installation instructions provided with the accessory components. Please note Electronic assemblies can be damaged by electrostatic discharge. Before beginning work, touch earthed objects, such as heating or water pipes, to discharge static loads.
  • Page 15 Installation sequence Electrical connections (cont.) 230V~ 230V~ 7654 A Radio clock receiver B Vitotrol 100 UTDB (only for constant temperature control units) C Vitotrol 100 UTA (only for constant temperature control units) Vitotrol 100 UTDB-RF wireless receiver (only for constant tempera- ture control units) Plug 230 V~ fÖ...
  • Page 16 Installation sequence Electrical connections (cont.) Make the power supply con- Danger nection and implement all Absence of component protective measures (e.g. earthing in the system can RCD circuit) in accordance result in serious injury due to with the following regula- electric shock in the event of tions: an electrical fault.
  • Page 17 Installation sequence Electrical connections (cont.) Low voltage plug X3 ? Flow temperature sensor for low ! Outside temperature sensor (only loss header (accessories) % Cylinder temperature sensor (fitted for weather-compensated control units) and connected) aVG KM BUS subscriber (accessory) Installation: ■...
  • Page 18 Installation sequence Electrical connections (cont.) Connection of accessories Power supply of all accessories via the boiler control unit Some accessories with direct power supply A Boiler control unit D Extensions AM1 or EA1 B Extension kit for heating circuit with E ON/OFF switch mixer M2 C Extension kit for heating circuit with...

  • Page 19: Routing The Connecting Cables

    Installation sequence Electrical connections (cont.) Routing the connecting cables Please note Connecting cables will be damaged if they touch hot components. When routing and securing power cables on site, ensure that the maximum permissible temperatures for these cables are not exceeded. A Low voltage connections E Communication module (accesso- B 230 V connections...

  • Page 20: Closing The Control Unit Casing

    Installation sequence Closing the control unit casing Close control unit casing and insert pro- Note gramming unit, packed separately. The programming unit can also be used in a wall mounting base (accessory) near the boiler.
  • Page 21 Installation sequence Closing the control unit casing (cont.) Wall mounting base installation instructions...

  • Page 22: 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. Removing the front panels..........24 • 2. Filling the heating system..........24 •...
  • Page 23 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • 21. Checking the condensate drain and cleaning the siphon................40 • 22. Checking the neutralising system (if installed) • 23. Checking the anode connection........40 •...

  • Page 24: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panels See page 10, steps 1 to 5. Filling the heating system Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage. ■...
  • Page 25 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note 4. If the control unit had already been If the control unit has not been switched on before filling began: switched on prior to filling the system, Switch control unit ON and activate then the servomotor of the diverter filling program (see next steps).

  • Page 26: Selecting The Language (If Necessary) - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the language (if necessary) - only for weather-com- pensated control units At the commissioning stage, the display 3. "Language" is in German (factory setting). Sprache Extended menu: Deutsch ç Cesky Dansk 1.

  • Page 27: Venting The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Close the shut-off valves on the heat- ing water side. 2. Remove cover panel A. 3. Connect the drain hose on valve B with a drain. 4. Open air vent valve B and fill valve C in the heating return and vent using mains pressure (flush) until no more air noise can be heard.

  • Page 28: Filling Siphon With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Activating the venting function Weather-compensated control unit Constant temperature control unit Service menu Service menu 1. Press OK and å simultaneously for 1. Press OK and å simultaneously for approx. 4 s. approx.

  • Page 29: Designating Heating Circuits - Only For Weather-Compensated Control Units

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Pivot control unit forward. 6. Check that the condensate pipe is connected correctly to the siphon and 2. Pull retaining clip A off. heat exchanger. 7. Refit cover panel. 3.

  • Page 30: 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. Set adjusting screw A on the gas train to "2". 2. Turn ON/OFF switch 3. Select the gas type in coding address "82".
  • Page 31 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Ignition Fault EE Check the ignition module (control voltage 230 V across plugs "X2.1" and "X2.2") Gas train opens Fault EE Check the gas train (control voltage 230 V); check the gas supply pres- sure Ionisation current...

  • Page 32: Checking The Static And Supply Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Automatic calibra- Fault E3 Ensure adequate tion of the com- heat transfer. bustion controller Press reset button Fault Eb Check gap between ionisation electrode and burner gauze assembly. Check allocation of gas type (coding address 82, gas train setting).
  • Page 33 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure. Set value: ■ Natural gas: 20 mbar ■ LPG: 50 mbar Note Use a suitable measuring device with a resolution of at least 0.1 mbar to check the supply pressure.

  • Page 34: Maximum Output Setting

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Supply (flow) pres- Supply (flow) Measures sure for natural pressure for LPG below 17.4 mbar below 42.5 mbar Do not start the boiler. Notify your gas supply utility or LPG supplier. 17.4 to 25 mbar 42.5 to 57.5 mbar Start the boiler.

  • Page 35: Checking The Balanced Flue System Tightness (Annular Gap Check)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the balanced flue system tightness (annular gap check) We recommend that your heating engi- neer carries out a simple leak/tightness test during the commissioning of your system. For this, it would be sufficient to check the CO or O concentration in the...

  • Page 36: Burner Removal

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner removal 1. Switch OFF the main power supply 3. Pull electrical cables from fan motor A, gas valve B, ionisation elec- and the ON/OFF switch at the con- trode C, ignition unit D and earth trol unit.

  • Page 37: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Undo four screws G and remove the Please note burner. Prevent damage to the wire gauze. Never rest the burner on the gauze assembly. Checking the burner gasket and burner gauze assembly Check burner gasket A and burner gauze assembly E for damage;...

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

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Refit thermal insulation ring D. 3. Undo four Torx screws and remove burner gauze assembly E with its gasket F. 6. Refit electrodes B. Torque: 4.5 Nm. 4. Insert and secure a new burner gauze assembly E with a new gas- ket F.
  • Page 39 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Thoroughly flush heat exchanger A with water. 4. Install the burner. Fit the screw with a serrated washer as well as the remaining screws, then apply torque diagonally with 8.5 Nm. 5.

  • Page 40: Checking The Condensate Drain And Cleaning The Siphon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the condensate drain and cleaning the siphon 1. Check that the condensate can drain freely in the siphon. 2. Pull retaining clip A off. 3. Pull filler pipe B upwards. 4.

  • Page 41: Testing The Anode Earth Current With An Anode Tester

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) A Magnesium anode B Earth cable Testing the anode earth current with an anode tester Note We recommend that the magnesium anode function is checked annually. This func- tion test can be carried out without interrupting operation, by measuring the earth current with an anode tester.
  • Page 42 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove cover A. 3. Connect the tester (up to 5 mA) in series between tab C and earth 2. Pull earth lead B from tab C. cable B. ■ The anode is OK if the indicated current is >...

  • Page 43: Draining The Boiler On The Dhw Side

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Draining the boiler on the DHW side 1. Connect hose to drain valve and route into a suitable container or drain outlet. Note Ensure adequate ventilation in the DHW pipework. 2.

  • Page 44: Cleaning The Primary Store

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary store Note According to EN 806, visual inspection and (if necessary) cleaning must be carried out no later than two years after commissioning and thereafter as required. 1.

  • Page 45: Checking And Replacing The Magnesium Anode (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and replacing the magnesium anode (if required) Check the magnesium anode. If it is discovered that the anode has degraded to 10 to 15 mm Ø, we recommend replacing the magnesium anode. Returning the primary store into use 1.

  • Page 46: Checking The Diaphragm Expansion Vessel And System Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pressure Note Carry out this test on a cold system. 1. Drain the system, until the pressure gauge indicates "0". 2. If the diaphragm expansion vessel inlet pressure is lower than the static system pressure: Top up with nitro- gen via connection A, until the inlet...

  • Page 47: Checking The Pre-Charge Pressure And The Dhw Expansion Vessel (If Installed)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the pre-charge pressure and the DHW expansion ves- sel (if installed) 1. Check the static pressure of the DHW line downstream of the pressure reducer and adjust if required. Set value: max.
  • Page 48 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Operate the appliance with uncontaminated combustion air to prevent operating faults and damage. or O content ■ The CO content must be within the following limits (upper and lower output): –...

  • Page 49: Checking The External Lpg Safety Valve (If Installed) 36. Matching The Control Unit To The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Select higher/lower output Weather-compensated control unit Constant temperature control unit Service menu Service menu 1. Press OK and å simultaneously for 1. Press OK and å simultaneously for approx. 4 s. approx.
  • Page 50 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) System version 1 One heating circuit without mixer A1 1 Vitodens 222-F 3 Vitotrol 100 (only for constant tem- perature control units) 2 Outside temperature sensor (only for weather-compensated control...
  • Page 51 Further details regarding the individual steps (cont.) System version 2 One heating circuit with mixer M2 and a low loss header 1 Vitodens 222-F 5 Flow temperature sensor M2 2 Outside temperature sensor 6 Heating circuit pump M2 3 Heating circuit with mixer M2 (heat-...
  • Page 52 04:0 04:1 System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 1 Vitodens 222-F 6 Flow temperature sensor M2 2 Outside temperature sensor 7 Heating circuit pump M2 3 Heating circuit without mixer A1...
  • Page 53 System with DHW circulation pump: — DHW circulation pump connection at extension AM1, 34:0 terminal A2 System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation 1 Vitodens 222-F 2 Outside temperature sensor...
  • Page 54 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3 Heating circuit without mixer A1 7 Heating circuit pump M2 (heating circuit 1) 8 Extension kit for one heating circuit 4 Heating circuit with mixer M2 (heat- with mixer M2 ing circuit 2) 9 Heat exchanger for system separa- 5 Temperature limiter for limiting the...
  • Page 55 One heating circuit without mixer, one heating circuit with mixer M2 (with extension kit), one heating circuit with mixer M3 (with extension kit) and low loss header (with/without DHW heating) 1 Vitodens 222-F qP Temperature limiter for limiting the 2 Outside temperature sensor...

  • Page 56: Adjusting The Heating Curves (Only For Weather-Compensated Control Units)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Function/system components Code Adjust Delivered con- dition Operation with LPG 82:1 82:0 System only with two heating circuits with mixer with 00:8 00:10 extension kit for mixer (without unregulated heating circuit) with DHW heating —...
  • Page 57 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Changing the slope and level Extended menu: 1. å 2. "Heating" 3. Select heating circuit. 4. "Heating curve" 5. "Slope" or "Level" 6.

  • Page 58: Connecting The Control Unit To The Lon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Adjusting the set room temperature Reduced room temperature Standard room temperature Example 2: Adjustment of the reduced room temperature from 5 °C to 14 °C Example 1: Adjustment of the standard room temperature from 20 to 26 °C A Boiler water temperature or flow temperature in °C...
  • Page 59 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Single boiler system with Note Vitotronic 200-H and Vitocom 300 In the LON system, the same subscriber (example) number cannot be allocated twice. Only one Vitotronic may be program- Set the LON subscriber numbers and med as fault manager.

  • Page 60: Scanning And Resetting The "Service" Display

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Preconditions: 4. Select subscriber (e.g. subscriber ■ The control unit must be programmed 10). as fault manager (code "79:1") The subscriber check for the selected ■ The LON subscriber number must be subscriber is initiated.
  • Page 61 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) After a service has been carried out Constant temperature control unit (reset service) Reset code 24:1 to 24:0. Weather-compensated control unit Note 1. Press OK and å simultaneously The selected service parameters for hours run and time interval restart at 0.

  • Page 62: Fitting The Front Panels

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the front panels Instructing the system user The system installer must hand the operating instructions to the system user and instruct the user in the operation of the system.

  • Page 63: Calling Up Coding Level 1

    Code 1 Calling up coding level 1 Note 6. If you want to reset all codes to ■ On weather-compensated control their delivered condition: units, codes are displayed as plain Select "Standard setting" in "Cod- text. ing level 1". ■ Codes that have no function due to the heating system equipment level or the Note setting of other codes are not dis-...

  • Page 64: General/Group "1

    Code 1 Calling up coding level 1 (cont.) 6. If you want to reset all codes to Note their delivered condition: This also resets codes from coding Select "7" with Ú and confirm with level 2. When " " flashes, confirm with OK. General/group "1"...
  • Page 65 Code 1 General/group "1" (cont.) Coding in the delivered condition Possible change Internal circulation pump function 51:0 Internal circulation pump 51:1 System with low loss always starts when there header: is a heat demand When there is a heat demand, the internal circu- lation pump is only started if the burner is operational (with pump run-on).

  • Page 66: Boiler/Group "2

    Code 1 General/group "1" (cont.) Coding in the delivered condition Possible change Set flow temperature for external demand 9b:70 Set flow temperature for 9b:0 Set flow temperature for external demand 70 °C external demand adjusta- ble from 0 to 127 °C (limited 9b:127 by boiler-specific parame- ters)

  • Page 67: Dhw/Group "3

    Code 1 DHW/group "3" Select "DHW" for weather-compensated control units (see page 63). Select "3" for constant temperature control units (see page 63). Coding Coding in the delivered condition Possible change Enable DHW circulation pump 73:0 DHW circulation pump: 73:1 "ON"...
  • Page 68 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter address With heating circuit pump logic function: Heating cir- A5:... cuit pump "OFF" AT > RT + 1 K AT > RT AT > RT - 1 K AT > RT - 9 K Coding in the delivered condition Possible change...
  • Page 69 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump idle time, transition reduced mode A9:7 With pump idle time: A9:0 Without pump idle time Heating circuit pump A9:1 With pump idle time; "OFF"...
  • Page 70 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter With heating circuit pump logic function: address b5:... Heating circuit pump "OFF" Heating circuit pump "ON" > RT < RT - 1 K actual actual > RT < RT - 2 K - 1 K actual...
  • Page 71 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Max. pump speed in standard mode E6:... Maximum speed of the E6:0 Maximum speed adjusta- variable speed heating ble from 0 to 100 % circuit pump in % of the E6:100 max.
  • Page 72 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump control in “Only DHW” F6:25 In the "Only DHW" oper- F6:0 In the "Only DHW" operat- ating mode, the internal ing mode, the internal cir- circulation pump is per- culation pump is perma- manently on (only for...
  • Page 73 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Set flow temperature increase FA:20 Raising the set boiler FA:0 Temperature rise adjusta- water temperature or the ble from 0 to 50 % set flow temperature FA:50 when changing from...

  • Page 74: Calling Up Coding Level 2

    Code 2 Calling up coding level 2 Note 6. Select value according to the follow- ■ In coding level 2, all codes are acces- ing tables and confirm with "OK". sible, including the codes from coding level 1. 7. If you want to reset all codes to ■...

  • Page 75: General/Group "1

    Code 2 Calling up coding level 2 (cont.) 7. If you want to reset all codes to Note their delivered condition: This also resets codes from coding Select "7" with Ú and confirm with level 1. When " " flashes, confirm with OK. General/group "1"...
  • Page 76 Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change No access to the coding 11:9 Access open to the coding 11:≠9 addresses for the com- addresses for the combus- bustion controller param- tion controller parameters eters 25:0 Without outside tempera- 25:1 With outside temperature...
  • Page 77 Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change Internal circulation pump function: Coding address 3A:4 Function input DE1: Exter- nal blocking with fault mes- sage input Internal circulation pump function: Coding address 3A:5 Function input DE1: Fault message input 3A:6 Function input DE1: Brief...
  • Page 78 Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change 3b:6 Function input DE2: Brief operation, DHW circulation pump (pushbutton func- tion). DHW circulation pump run- time adjustment: Coding address 3d 3C:0 Function input DE3 at 3C:1 Function input DE3: Heat- extension EA1: Not ing program - changeover assigned...
  • Page 79 Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change 3E:0 Internal circulation pump 3E:1 Internal circulation pump stays in control mode at stops at signal "External signal "External block- blocking" ing" 3E:2 Internal circulation pump starts at signal "External blocking"...
  • Page 80 Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change Note Each number may only be assigned once. 79:1 With LON communication 79:0 Control unit is not fault module: Control unit is manager fault manager (only for weather-compensated control units) 7b:1 With LON communication...
  • Page 81 Vitotronic 200-H (only for weather-com- pensated control units) 98:1 Viessmann system num- 98:1 System number adjustable ber (in conjunction with from 1 to 5 monitoring several sys- 98:5...

  • Page 82: Boiler/Group "2

    Code 2 General/group "1" (cont.) Coding in the delivered condition Possible change If a subscriber fails to 9C:60 respond, the values specified inside the con- trol unit will be used after 20 min. Only then will a fault message be issued. (only for weather-com- pensated control units) 9F:8...

  • Page 83: Dhw/Group "3

    Code 2 Boiler/group "2" (cont.) Coding in the delivered condition Possible change 21:0 No service interval (hours 21:1 Number of hours run run) selected before the burner should 21:100 be serviced is adjustable from 100 to 10,000 h One adjusting step ≙ 100 h 23:0 No time interval for...
  • Page 84 Code 2 DHW/group "3" (cont.) Coding Coding in the delivered condition Possible change 56:0 Set DHW temperature 56:1 Set DHW temperature adjustable from 10 to adjustable from 10 to 60 °C above 60 °C Note Maximum value subject to boiler coding card. Observe the max.

  • Page 85: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3/Group "5

    Code 2 DHW/group "3" (cont.) Coding in the delivered condition Possible change 1: Viessmann diverter valve 2: Wilo diverter valve 3: Grundfos diverter valve 6C:100 Set speed, internal circu- 6C:0 Set speed adjustable from lation pump with DHW 0 to 100 %...
  • Page 86 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding Coding in the delivered condition Possible change A0:0 Without remote control A0:1 With Vitotrol 200A (auto- (only for weather-com- matic recognition) pensated control units) A0:2 With Vitotrol 300A or Vitohome 300 (automatic recognition) A1:0...
  • Page 87 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter Heating circuit pump address A3:... "ON" "OFF" 1 °C 3 °C 14 °C 16 °C Coding in the delivered condition Possible change A4:0 With frost protection (only A4:1 No frost protection; this set- for weather-compensa- ting is only possible if code ted control units)
  • Page 88 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A6:36 Extended economy func- A6:5 Extended economy control tion disabled (only for enabled, i.e. the burner and weather-compensated A6:35 heating circuit pump will be control units) stopped and the mixer closed at a variable value,...
  • Page 89 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A9:15 b0:0 With remote control: b0:1 Heating mode: weather- Heating mode/reduced compensated mode: weather-compen- Reduced mode: with room sated (only for weather- temperature hook-up compensated control b0:2 Heating mode: with room...
  • Page 90 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter With heating circuit pump logic function: address b5:... Heating circuit pump "OFF" Heating circuit pump "ON" > RT < RT - 2 K - 1 K actual actual > RT <...
  • Page 91 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change d7:2 Heating circuit pump starts at signal "External demand" (subject to coding addresses 3A, 3b and 3C) d8:0 No heating program d8:1 Heating program change- changeover via extension over via input DE1 at exten- sion EA1...
  • Page 92 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change E8:1 Minimum speed in opera- E8:0 Speed subject to the set- tion with reduced room ting in coding address temperature subject to "E7" the setting in coding address "E9"...
  • Page 93 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change F6:1 In the "Only DHW" operat- ing mode, the internal cir- F6:24 culation pump is started 1 to 24 times per day for 10 min each time.
  • Page 94 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change FA:50 Fb:30 Duration for raising the Fb:0 Duration adjustable from 0 set boiler water tempera- to 300 min; 1 step ≙ 2 min ture or the set flow tem- Fb:150 perature (see coding...

  • Page 95: Diagnosis And Service Scans

    Diagnosis and service scans Calling up the service level Only for weather-compensated control units Press OK and å simultaneously for approx. 4 s. Service menu overview Service General Diagnosis Heating circuit 1 Heating circuit 2 Actuator test Heating circuit 3 Coding level 1 Brief scan Reset data...

  • Page 96: Diagnosis

    Diagnosis and service scans Diagnosis Scanning operating data ■ Weather-compensated control unit: Operating data can be scanned in six areas. See "Diagnosis" in the service menu overview. Operating data on heating circuits with mixers and solar can only be scanned if the components are installed in the system.

  • Page 97: Brief Scan

    Diagnosis and service scans Diagnosis (cont.) Brief scan In the brief scan, you can scan temperatures, software versions and connected com- ponents, for example. Weather-compensated control unit 1. Press OK and å simultaneously for approx. 4 s. 2. "Diagnosis" 3. "Brief scan". 4.
  • Page 98 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Software Software Software version version version Program- Mixer ming unit exten- module sion 0: No mixer exten- sion Software version Type Appliance type Burner control unit Burner control unit Number of LON sub- Check Max.
  • Page 99 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Internal circulation Heating circuit Heating circuit pump, pump pump, heating cir- heating circuit M3 cuit M2 Variable Software Variable Software Variable Software speed version speed version speed version pump variable pump Variable pump...
  • Page 100 Diagnosis and service scans Diagnosis (cont.) Brief scan Display Set boiler water temperature Highest demand temperature Burner control unit type Appliance type Set cylinder temperature Max. output in % Diverter valve sta- 0: not avail- able 1: Heating 2: Central position 3: DHW heating...

  • Page 101: Checking Outputs (Relay Test)

    Diagnosis and service scans Diagnosis (cont.) Brief scan Display Output 157 Output 157 Input DE1 Input DE2 Input DE3 configura- switching switching switching switching tion state state state state (value cor- 0: OFF 0: open 0: open 0: open responds 1: ON 1: closed 1: closed...
  • Page 102 Diagnosis and service scans Checking outputs (relay test) (cont.) Display Explanation Htg circ pump Heating circuit pump output enabled (extension to heating circuit with mixer) Mixer HC3 Open "Mixer open" output enabled (extension to heating circuit with mixer) Mixer HC3 Close "Mixer close"...

  • Page 103: Troubleshooting

    Troubleshooting Fault display Weather-compensated control unit If there is a fault, the red fault indicator Calling up acknowledged faults A flashes. " " flashes on the display and "Fault" is shown. Select "Fault" in the standard menu. The current faults will be displayed in a list.
  • Page 104 Troubleshooting Fault display (cont.) Constant temperature control unit If there is a fault, the red fault indicator A fault messaging facility, if connected, A flashes. The two-digit fault code and will be switched OFF. If an acknowledged fault is not remedied, (subject to the type of fault) "...

  • Page 105: Fault Codes

    Troubleshooting Fault codes Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Regulates as if Short circuit, Check outside tem- the outside outside tem- perature sensor temperature perature sen- (see page 120) were 0 °C Regulates as if Lead break, Check outside tem- the outside...
  • Page 106 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Mixer closes Lead break, Check flow temper- flow tempera- ature sensor (see ture sensor, page 131) heating circuit 2 (with mixer) Mixer closes Lead break, Check flow temper- flow tempera- ature sensor (see...
  • Page 107 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code If a heating cir- Internal circu- Check the circula- cuit with mixer lation pump tion pump is connected, blocked the burner operates at its lower output.
  • Page 108 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Mixer regulates Communica- Check extension to 20 °C flow tion error, kit connections and extension kit code. temperature. for heating circuit 3 (with mixer) Control mode Communica- Check connec-...
  • Page 109 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Control mode Communica- Check Open tion error, Therm extension Open Therm extension Control mode, Communica- Check setting of max. pump tion error, var- coding address speed iable speed "30"...
  • Page 110 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Control mode Communica- Check connec- tion error, ext. tions extension Control mode Communica- Replace LON com- tion error, munication module LON commu- nication mod- Control mode Input DE1 Remove fault at...
  • Page 111 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Control mode Lead break, Check room tem- without room room temper- perature sensor for influence ature sensor, heating circuit 1 heating circuit and remote control 1 (without settings (see mixer)
  • Page 112 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Heat transfer Ensure adequate state too low during heat transfer. calibration. Press reset button Temperature limiter caused shutdown. Burner blocked Fault, supply Replace control voltage 24 V unit.
  • Page 113 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault The ionisa- Check gas supply state tion current (gas pressure and lies outside gas flow limiter), the permissi- gas train and con- ble range necting lead.
  • Page 114 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Repeated Check gap state flame loss between ionisation during cali- electrode and bration burner gauze assembly (see page 38). Check allocation of gas type (see page 30).
  • Page 115 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Flame signal Check gas supply state is not present (gas pressure and or too weak at gas flow limiter). burner start. Check gas train.
  • Page 116 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Flame is lost Check gas supply state immediately (gas pressure and after it has gas flow limiter). built (during Check flue gas/ the safety ventilation air sys- time).
  • Page 117 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Flame signal Check ionisation state is already electrode and con- present at necting cable. burner start. Press reset button Burner in a fault Fuel valve Check gas train.
  • Page 118 Troubleshooting Fault codes (cont.) Dis- Const. Weath.- System char- Cause Measures played comp. acteristics fault code Burner in a fault Fault, burner Check ignition state control unit electrodes and connecting cables. Check whether a strong interference (EMC) field exists near the appliance. Press reset button Replace control unit if fault per-...

  • Page 119: Repairs

    Troubleshooting Repairs Putting control unit in maintenance position If required for commissioning and serv- icing, the control unit can be put in a dif- ferent position.
  • Page 120 Troubleshooting Repairs (cont.) Draining the boiler on the heating water side 1. Close the shut-off valves on the heat- 3. Open drain valve A and drain the ing water side. boiler as much as required. 2. Route hose at drain valve A into a suitable container or drain outlet.
  • Page 121 Troubleshooting Repairs (cont.) 1. Pull plug "X3" from the control unit. 4. Depending on the result, replace the lead or the outside temperature sen- 2. Test the resistance of the outside sor. temperature sensor across terminals "X3.1" and "X3.2" on the disconnec- ted plug and compare it with the curve.
  • Page 122 Troubleshooting Repairs (cont.) Checking the boiler temperature sensor, cylinder temperature sensor or low loss header flow temperature sensor...
  • Page 123 Troubleshooting Repairs (cont.) 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 har- ness at the control unit and check the resistance.
  • Page 124 Troubleshooting Repairs (cont.) Checking the outlet temperature sensor 1. Pull the leads from outlet temperature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in the case of severe deviation. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding).
  • Page 125 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 system has cooled down by pressing reset button R. 1.
  • Page 126 Troubleshooting Repairs (cont.) 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in the case of severe deviation. 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ Checking the plate heat exchanger Note Drain the boiler on its heating water and DHW side.
  • Page 127 Troubleshooting Repairs (cont.) 1. Shut off and drain the boiler on the 6. Check the connections on the heat- heating water and DHW sides. ing water and DHW side for contam- ination and scaling; if required, 2. Release the side closures and pivot replace the plate heat exchanger.
  • Page 128 Troubleshooting Repairs (cont.) Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx. 75 °C, check the following: 1. Pull the leads from temperature lim- iter A. 2.
  • Page 129 Troubleshooting Repairs (cont.) Checking the fuse 1. Switch off the power. 3. Remove cover A. 2. Release the side closures and pivot 4. Check fuse F1 (see connection and the control unit down. wiring diagram). Extension kit for heating circuit with mixer Checking the setting of rotary selec- Heating circuit Rotary...
  • Page 130 Troubleshooting Repairs (cont.) Checking the rotational direction of Note the rotational direction of the mixer the mixer motor motor during its self-test. Then set the mixer manually to "Open". After being switched on, the boiler imple- ments a self-test. During this, the mixer Note is opened and closed again.
  • Page 131 Troubleshooting Repairs (cont.) Check flow temperature sensor Pressure drop curve 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ 1. Pull plug ? (flow temperature sen- 2. Check the sensor resistance and sor). compare it with the curve. Replace the sensor in the case of severe deviation.

  • Page 132: Function Description

    Function description Constant temperature control unit °C Heating mode The selected set boiler water tempera- The electronic temperature limiter inside ture will be maintained when a demand the burner control unit limits the boiler is being raised by the room thermostat water temperature.

  • Page 133: Weather-Compensated Control Unit

    Function description Constant temperature control unit (cont.) Boosting when DHW is drawn off When DHW is drawn off, cold water The DHW is controlled to the specified enters at the bottom of the primary cyl- temperature via the cylinder temperature inder.
  • Page 134 Function description Weather-compensated control unit (cont.) Heating mode The control unit determines a set boiler The electronic temperature limiter inside water temperature subject to outside the burner control unit limits the boiler temperature or room temperature (if a water temperature. room temperature-dependent remote control is connected) and to the slope/ level of the heating curve.
  • Page 135 Function description Weather-compensated control unit (cont.) The DHW is controlled to the specified The cylinder primary pump and the temperature via the cylinder temperature three-way diverter valve remain ON for a sensor. further 30 s. The primary cylinder continues to be heated up after the draw off process has terminated, until the set DHW tempera- ture has been reached at the cylinder...

  • Page 136: Internal Extensions

    Function description Internal extensions Internal extension H1 The internal extension H1 is integrated An external safety valve can be connec- into the control unit casing. The cylinder ted to gD. primary pump is connected to relay out- put sK.
  • Page 137 Function description Internal extensions (cont.) Internal extension H2 (accessories) The internal extension H2 is integrated An external extractor interlock can be into the control unit casing instead of the connected to aBJ. internal extension H1. The cylinder pri- mary pump is connected to relay output...

  • Page 138: External Extensions (Accessories)

    Function description External extensions (accessories) Extension AM1 Circulation pump fÖA Power supply terminal for addi- Circulation pump tional accessories Power supply [terminals] fÖ aVG KM BUS...
  • Page 139 Function description External extensions (accessories) (cont.) Functions Allocating functions for outputs A1 and A2 One of the following circulation pumps can be connected to each of the termi- Select the function for these outputs via nals A1 and A2: the codes on the boiler control unit: ■...

  • Page 140: Extension Ea1

    Function description External extensions (accessories) (cont.) Extension EA1 Digital input 1 Central fault message/feed Digital input 2 pump/DHW circulation pump Digital input 3 (zero volt) 0 - 10 V 0 - 10 V input KM BUS Power supply [terminals] fÖ fÖA Power supply terminal for addi- tional accessories...
  • Page 141 Function description External extensions (accessories) (cont.) Digital data inputs DE1 to DE3 Effect on the pumps of external block- ing function The following functions can be connec- ted alternatively: The effect on the internal circulation ■ External heating program changeover pump is selected with code 3E.

  • Page 142: Control Functions

    Function description External extensions (accessories) (cont.) Function assignment Select the function of output aBJ via code 36 at the boiler control unit. Control functions External heating program changeover The "External heating program change- The function is selected via the following over"...
  • Page 143 Function description Control functions (cont.) Heating program - changeover Code No heating program changeover F2:0 Duration of the heating program changeover 1 to 12 hours F2:1 to F2:12 The heating program changeover stays enabled for as long as the contact remains closed, but at least as long as the duration selected in coding address "F2".
  • Page 144 Function description Control functions (cont.) External demand Code Input DE1 3A:2 Input DE2 3b:2 Input DE3 3C:2 The effect on the internal circulation The minimum set boiler water tempera- pump is selected with code 3F. ture in case of external demand is selec- The effect on the relevant heating circuit ted in coding address "9b".
  • Page 145 Function description Control functions (cont.) When the screed function is activated, The various temperature profiles are the heating circuit pump of the mixer cir- adjustable via coding address "F1". cuit is switched on and the flow temper- The function continues after power fail- ature will be held in accordance with the ure or after the control unit has been selected profile.
  • Page 146 Function description Control functions (cont.) Temperature profile 3: Code "F1:3" Days Temperature profile 4: Code "F1:4" Days Temperature profile 5: Code "F1:5" Days...
  • Page 147 Function description Control functions (cont.) Temperature profile 6: Code "F1:6" Days Temperature profile 7: Code "F1:15" Days Raising the reduced room temperature During operation with reduced room The outside temperature limits for the temperature, the reduced set room tem- start and end of the temperature raising perature can be automatically raised can be adjusted via coding addresses subject to the outside temperature.
  • Page 148 Function description Control functions (cont.) Example using the settings in the delivered condition -5 -10 -15 Outside temp. in °C A Heating curve for operation with B Heating curve for operation with standard room temperature reduced room temperature Reducing the heat-up time During the transition from operation with The value and duration of the additional reduced room temperature to operation...
  • Page 149 Function description Control functions (cont.) Example using the settings in the delivered condition Time in h A Start of operation with standard D Duration of operation with raised set room temperature boiler water or flow temperature in B Set boiler water or flow temperature accordance with coding address in accordance with the selected "Fb":...

  • Page 150: Allocating Heating Circuits To The Remote Control

    Function description Allocating heating circuits to the remote control The heating circuit allocation must be configured when commissioning the Vitotrol 200A or Vitotrol 300A. Heating circuit Configuration Vitotrol 200A Vitotrol 300A The remote control affects the heating circuit with- HC 1 out mixer A1 The remote control affects the heating circuit with HC 2...
  • Page 151 Function description Electronic combustion controller (cont.) Air factor λ– CO content Air factor λ O content (%) CO content (%) for nat- content (%) for ural gas H LPG P 1.24 10.9 1.27 10.6 1.30 10.3 1.34 10.0 1.37 1.40 1.44 To achieve an optimum combustion con- trol, the system regularly carries out an...

  • Page 152: Designs

    Designs Internal connection diagram Main PCB dÖ Stepper motor for diverter valve X... Electrical interfaces Temperature limiter § Boiler water temperature sensor Ignition unit Outlet temperature sensor a-Ö Fan motor Ionisation electrode a-ÖA Fan motor control Flue gas temperature sensor a:Ö...

  • Page 153: External Connection Diagram

    Designs External connection diagram Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
  • Page 154 Designs External connection diagram (cont.) sÖ Connection adaptor Internal circulation pump LON communication module Gas solenoid valve Internal extension H1 fÖ Power supply ON/OFF switch Power supply accessories and Reset button Vitotrol 100 X... Electrical interfaces a-Ö Fan motor Outside temperature sensor a-ÖA Fan motor control Flow temperature sensor, low Gas pressure limiter...

  • Page 155: Parts Lists

    Parts lists Parts lists Spare parts information 035 Heating water return connection Quote the part number and serial num- pipework ber (see type plate), as well as the posi- 036 Connection pipework, cold water tion number of the required part (as per 037 DHW connection pipe this parts list).
  • Page 156 Parts lists Parts lists (cont.) 095 Hose clip DN 25 205 Front panel, top 096 Clip 7 8 (5 pce) 206 Front panel, bottom 097 Clip 7 10 (5 pce) 207 Adjustable foot 208 Fixing elements 098 Clip 7 15 (5 pce) 300 Control unit 099 Clip 7 18 (5 pce) 301 Casing back panel...
  • Page 157 Parts lists Parts lists (cont.) 400 Operating instructions for constant 402 Installation and service instructions temperature mode A Type plate 401 Operating instructions for weather- compensated mode...
  • Page 158 Parts lists Parts lists (cont.)
  • Page 159 Parts lists Parts lists (cont.)
  • Page 160 Parts lists Parts lists (cont.)
  • Page 161 Parts lists Parts lists (cont.)
  • Page 162 Parts lists Parts lists (cont.)
  • Page 163 Parts lists Parts lists (cont.)

  • Page 164: Commissioning/Service Reports

    Commissioning/service reports Commissioning/service reports Setting and test val- Set value Commis- Service sioning Date: Static pressure mbar max. 57.5 mbar Supply pressure (flow pressure) = for natural gas H mbar 17.4-25 mbar = for LPG mbar 25-47 mbar Tick gas type Carbon dioxide con- tent CO ■...

  • Page 165: Specification

    Specification Specification Rated voltage 230 V Electronic tempera- 81 °C Rated frequency 50 Hz ture limiter setting Rated current Temperature limiter 100 °C (fixed) Safety category setting IP rating IP X 4 D to Backup fuse (power EN 60529 supply) max.

  • Page 166: Certificates

    Declaration of conformity Declaration of conformity for the Vitodens 222-F We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon- sible body, that the product Vitodens 222-F complies with the following standards: DIN 4753 EN 55 014 EN 483...

  • Page 167: 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 product limits specified by the 1st BImSchV § 6 [Ger- Vitodens 222-F complies with the NO many]. Allendorf, 01 March 2011 Viessmann Werke GmbH&Co KG...

  • Page 168: Keyword Index

    Keyword index Keyword index Accessory connection......18 Electronic combustion controller..150 Acknowledging a fault display..103 Extension Allocating heating circuits....150 ■ AM1..........138 ■ EA1..........140 ■ Internal........136, 137 Boiler draining Extension kit for heating circuit with ■ DHW side........43 mixer ..........129 Boiler water temperature sensor..122 External blocking......143 Boosting DHW heating.....135 External demand......143...
  • Page 169 Keyword index Keyword index (cont.) Reducing the heat-up time....148 Ignition..........38 Relay test.........101 Ignition electrodes......38 Remote control.........150 Ionisation electrode......38 Removing the front panels....24 Reports..........164 Room temperature adjustment..58 Language selection......26 Rotational direction of mixer motor LON............58 ■ Changing........130 ■ Fault monitoring......59 ■ Checking........130 ■...
  • Page 172 These service instructions apply to appliances with the following serial num- bers (see type plate): 7438004 7438005 7438006 7438007 7438008 7438009 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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