Viessmann FB2B Installation And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Viessmann Manuals
  4. Boiler
  5. FB2B
  6. Installation and service instructions manual
Viessmann FB2B Installation And Service Instructions Manual

Viessmann FB2B Installation And Service Instructions Manual

4.8 to 26 kw gas condensing/solar storage combi boiler natural gas and lpg version gas council no.: 47-819-18 19 kw 47-819-19 26 kw
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
VIESMANN
Installation and service
instructions
for contractors
Vitodens 242-F
Type FB2B, 4.8 to 26 kW
Gas condensing/solar storage combi boiler
Natural gas and LPG version
Gas Council no.:
47-819-18 (19 kW)
47-819-19 (26 kW)
For applicability, see the last page
VITODENS 242-F
Please keep safe.
5412 755 GB
5/2010

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the FB2B and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Viessmann FB2B

Summary of Contents for Viessmann FB2B

  • Page 1 VIESMANN Installation and service instructions for contractors Vitodens 242-F Type FB2B, 4.8 to 26 kW Gas condensing/solar storage combi boiler Natural gas and LPG version Gas Council no.: 47-819-18 (19 kW) 47-819-19 (26 kW) For applicability, see the last page VITODENS 242-F Please keep safe.
  • Page 2 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....................11 Opening the control unit casing................15 Electrical connections................... 16 Closing the control unit casing................22 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... 24 Further details regarding the individual steps............
  • Page 5 Index Index (cont.) Function description Control unit......................127 Internal extensions....................129 External extensions (accessories)................ 131 Control functions....................135 Allocating heating circuits to the remote control........... 143 Electronic combustion controller................143 Designs Internal connection diagram................. 145 External connection diagram................146 Connection diagram, solar control module............148 Parts lists......................

  • Page 6: Installation Instructions

    Preparing for installation Product information Vitodens 242-F, FB2B Set up for operation with natural gas H. For conversion to LPG P (without conversion kit), see page 32. The Vitodens 242-F should generally 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 land.
  • Page 7 Preparing for installation Preparing for installation (cont.) A Solar return R ¾ B Heating flow R ¾ C DHW R ½ D Gas connection R ½ E DHW circulation R ½ (separate accessory) F Cold water R ½ G Heating return R ¾ H Solar flow R ¾...
  • Page 8 Preparing for installation Preparing for installation (cont.) Minimum clearances Area around the Vitodens for maintenance: min. 700 mm. Maintenance clearances to the l.h. or r.h. side of the Vitodens are not required. Rated output range 4.8 to 19 kW 6.5 to 26 kW a (mm) Note The adjustable feet give all height meas-...
  • Page 9 Preparing for installation Preparing for installation (cont.) 2. Prepare the connections on the DHW side. Install the safety assembly (accessory or on-site provision) in accordance with the Water Fittings Regulations 1999 in the cold water line (see page 10). Recommendation: Install the safety valve above the DHW cylinder to protect it against contamination, scaling and high tem-...
  • Page 10 Preparing for installation Preparing for installation (cont.) Safety assembly to Water Fittings Regulations 1999 A Safety assembly to G Non-return valve Water Fittings Regulations 1999 (acces- H Drain sory to connection sets for unfinished K Cold water walls) L Drinking water filter B Safety valve M Pressure reducer to Water Fittings Reg- C Visible blow-off line outlet...

  • Page 11: Installation Sequence

    Installation sequence Installing the boiler Assembling the boiler...
  • Page 12 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 13 Installation sequence Installing the boiler (cont.) Connections on the solar side Shown with connection sets for finished walls (accessories) A Solar return R ¾ or Ø22 mm smooth B Solar flow R ¾ or Ø22 mm smooth tube tube Note The solar safety valve can be fitted in the The solar circuit pump is integrated into boiler.
  • Page 14 Installation sequence Installing the boiler (cont.) Gas connection Shown with connection sets for finished walls (accessories) A Gas connection R ½ Notes regarding 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-...

  • Page 15: Opening The Control Unit Casing

    Installation sequence Installing the boiler (cont.) Please note 3. Vent the gas line. Excessive test pressure may damage the boiler and the gas For conversion to a different gas type valve. see page 32 Max. test pressure 150 mbar. Where higher pressure is required for tightness tests, separate the boiler and the gas valves from the gas sup-...

  • Page 16: Electrical Connections

    Installation sequence Opening the control unit casing (cont.) Electrical connections Information regarding the connection of accessories For the connection, observe the separate installation instructions provided with the accessory components. Please note Electronic modules can be damaged by electrostatic discharges. Before beginning work, touch earthed objects, such as heating or water pipes, to discharge static loads.
  • Page 17 Installation sequence Electrical connections (cont.) 230V~ 230V~ 7654 A Solar control module KM BUS con- C External safety solenoid valve nection (connected in the delivered (LPG) condition) D Cylinder primary pump B Power supply, solar control module (connected in the delivered condi- tion) Plug 230 V~ fÖ...
  • Page 18 Installation sequence Electrical connections (cont.) Never interchange cores Low voltage plug X3 "L1" and "N". ! Outside temperature sensor ■ Install an isolator in the power Installation: supply line that simultaneously ■ North or north-western wall, 2 to isolates all non-earthed conduc- 2.5 m above ground level;...
  • Page 19 Installation sequence Electrical connections (cont.) Connection of accessories A Boiler control unit D Extension AM1, EA1 and/or solar B Extension kit for a heating circuit control module SM1 with mixer M2 E ON/OFF switch C Extension kit for heating circuit with mixer M3 If a current flows to the actuators con- nected (e.g.
  • Page 20 Installation sequence Electrical connections (cont.) Connect collector temperature sensor & & to terminal box B of solar control module A. On-site extension cable: 2-core, cross- section 1.5 mm Note The cylinder temperature sensor for solar heating % is delivered fitted and connected.
  • Page 21 Installation sequence Electrical connections (cont.) Routing the connecting cables Please note Connecting cables will be damaged if they touch hot parts. 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- ries)

  • Page 22: Closing The Control Unit Casing

    Installation sequence Closing the control unit casing Insert programming unit (packed sepa- Note rately) into the control unit support. The programming unit can also be used in a wall mounting base (accessory) near the boiler.
  • Page 23 Installation sequence Closing the control unit casing (cont.) Wall mounting base installation instructions...

  • Page 24: 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..........26 • 2. Filling the heating system..........26 •...
  • Page 25 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • 23. Checking the neutralising system (if installed) • 24. Checking the anode connection........43 • 25. Testing the anode earth current with an anode tester 43 •...

  • Page 26: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panels See page 11, 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 27: Changing The Language (If Required)

    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 28: Setting The Time And Date (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Setting the time and date (if required) During commissioning, or after pro- 2. "Settings" longed time out of use, the time and date need to be reset. 3. "Time / Date" Extended menu: 4.

  • Page 29: Filling Siphon With Water

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note 2. "Service functions" For function and sequence of the venting program, see page 137. 3. "Venting" 3. Check the system pressure. 4. Terminating venting program: Press OK or ä. Activate venting program: 1.

  • Page 30: Filling The Solar Circuit

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the solar circuit Solar thermal system installation and service instructions 2. Fill the solar circuit via fill valve A with "Tyfocor LS". Minimum system pressure: 1.7 bar. Permiss. operating pressure: 6 bar. Please note To prevent equipment dam- age, use only "Tyfocor LS".

  • Page 31: Naming The Heating Circuits

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Naming the heating circuits In the delivered condition, the heating Enter names for heating cir- circuits are designated "Heating circuit cuits: 1", "Heating circuit 2" and "Heating Operating instructions circuit 3" (if installed). If the system user prefers, the heating circuits can be designated differently to suit the specific system.

  • Page 32: 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 33 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 34: 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 35 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure. Set value: ■ Natural gas: 20 mbar ■ LPG: 37 mbar Note Use suitable test equipment with a resolution of at least 0.1 mbar to check the supply pressure.

  • Page 36: Setting The Maximum Output

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Supply (flow) pres- Supply (flow) Measures sure for natural pressure for LPG below 15 mbar below 25 mbar Do not start the boiler. Notify your gas supply utility or LPG supplier. 15 to 25 mbar 25 to 45 mbar Start the boiler.

  • Page 37: 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 38: Removing The Burner

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Removing the burner 1. Switch OFF the main power supply 2. Close the gas shut-off valve and safe- guard against reopening. and the ON/OFF switch at the con- trol unit.

  • Page 39: Checking The Burner Gasket And Burner Gauze Assembly

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Pull electrical cables from fan motor 5. Undo four screws G and remove the A, gas valve B, ionisation elec- burner. trode C, ignition unit D and earth tab E. Please note Prevent damage to the wire gauze.

  • Page 40: Checking And Adjusting The Ignition And Ionisation Electrodes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove electrodes B. 4. Insert and secure a new burner gauze assembly E with a new gas- 2. Undo three retaining clips C at ther- ket F. mal insulation ring D and remove Torque: 3.5 Nm.
  • Page 41 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 42: 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 at the siphon. 2. Pull retaining clip A off. 3. Pull filler pipe B upwards. 4.

  • Page 43: Checking The Anode Connection

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the anode connection Check that the earth lead is connected to the magnesium anode. 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.
  • Page 44 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 45: 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 46: Cleaning The Primary Store

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary store Note EN 806 specifies a visual inspection and (if required) cleaning every two years after commissioning and thereafter according to requirements. 5. Dispose of gasket E. 1.

  • Page 47: Checking And Replacing The Magnesium Anode (If Required)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7. Remove loose deposits with a high 9. Thoroughly flush the primary store pressure cleaner. after cleaning. Please note When cleaning the inside, only use plastic cleaning uten- sils. 8. Use a chemical cleaning agent to remove hard deposits that cannot be removed by a high pressure cleaner.

  • Page 48: Returning The Primary Store Into Use

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Returning the primary store into use 1. Reconnect the primary store to the 4. Push earth cable C onto the tab. pipework. 5. Fit T&P valve E. 2. Insert new gasket A underneath flange lid B.

  • Page 49: 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 50: Checking The Combustion Quality

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the combustion quality The electronic combustion controller automatically ensures an optimum combustion quality. The combustion values only need to be checked during commissioning and service. For this, check the CO or O content.

  • Page 51: Matching The Control Unit To The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7. Check the CO content. Should the 2. "Actuator test" actual value deviate from the above 3. Select the lower output: ranges by more than 1 %, implement Select "Base load" "ON" and con- steps from page 50.
  • Page 52 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) System version 1 One heating circuit without mixer A1 1 Vitodens 242-F wP Solar collectors 2 Outside temperature sensor wQ Collector temperature sensor 3 Heating circuit without mixer A1 Function/system components Code Adjust Delivered con- dition...
  • Page 53 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) System version 2 One heating circuit with mixer M2 and a low loss header 1 Vitodens 242-F 7 Extension kit for one heating circuit with mixer M2 2 Outside temperature sensor 8 Low loss header 3 Heating circuit with mixer M2 4 Temperature limiter for limiting the...
  • Page 54 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Function/system components Code Adjust Delivered con- dition DHW circulation pump connection at extension AM1, — 34:0 terminal A2 System with low loss header 04:0 04:1 System version 3 One heating circuit without mixer A1 and one heating circuit with mixer M2 1 Vitodens 242-F 6 Flow temperature sensor M2 2 Outside temperature sensor...
  • Page 55 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note The flow rate of the heating circuit with- out mixer must be at least 30 % greater than the flow rate of the heating circuit with mixer. Function/system components Code Adjust Delivered con- dition...
  • Page 56 Commissioning, 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 1 Vitodens 242-F 7 Heating circuit pump M2 2 Outside temperature sensor 8 Extension kit for one heating circuit with mixer M2 3 Heating circuit without mixer A1...
  • Page 57 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Function/system components Code Adjust Delivered con- dition System with DHW circulation pump: DHW circulation pump connection at extension AM1, — 34:0 terminal A2 System version 5 One heating circuit without mixer A1, 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 242-F...

  • Page 58: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) qQ Flow temperature sensor M3 qT Flow temperature sensor, low loss qW Heating circuit pump M3 header wP Solar collectors qE Extension kit for one heating circuit wQ Collector temperature sensor with mixer M3 qR Low loss header Function/system components...
  • Page 59 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Slope -5 -10 -15 -20 Outside temperature in °C A Heating curve slope for underfloor heating systems B Heating curve slope for low temper- ature heating systems (according to the Energy Savings Order [Ger- many])
  • Page 60 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the slope and level Adjusting the set room temperature Standard room temperature Outside temperature in °C Example 1: Adjustment of the standard A Changing the slope room temperature from 20 to 26°C B Changing the level (vertical parallel offset of the heating curve) A Boiler water temperature or flow...

  • Page 61: Connecting The Control Unit To The Lon

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Reduced room temperature C Set room temperature in °C D Heating circuit pump "OFF" E Heating circuit pump "ON" Adjustment of the reduced room tem- perature: Operating instructions Example 2: Adjustment of reduced room temperature from 5 °C to 14 °C A Boiler water temperature or flow temperature in °C...
  • Page 62 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Boiler control unit Vitotronic 200-H Vitotronic 200-H Vitocom Subscriber no. 1 Subscriber no. 10 Subscriber no. 11 Subscriber no. Code "77:1" Code "77:10" Set code "77:11" Control unit is fault Control unit is not Control unit is not Device is fault...

  • Page 63: Scanning And Resetting The "Service" Display

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Select subscriber (e.g. subscriber Note 10). If the subscriber check is carried out The subscriber check for the selected by another control unit, the sub- subscriber is introduced. scriber number and "Wink" are ■...

  • Page 64: Fitting The Front Panels

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the front panels...

  • Page 65: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instructing the system user The system installer must hand the oper- ating instructions to the system user and instruct him/her in the operation of the system.

  • Page 66: Calling Up Coding Level 1

    Code 1 Calling up coding level 1 Note 4. Select coding address. ■ The codes are displayed as plain text. ■ Codes that have no function due to the 5. Select value according to the follow- heating system equipment level or the ing tables and confirm with OK.

  • Page 67: General

    Code 1 General Coding Coding in the delivered condition Possible change System design 00:2 System version 1: 00:2 For system schemes, see One heating circuit with- the following table: out mixer (A1), with DHW 00:10 heating Value System Description address version 00: ...
  • Page 68 Code 1 General (cont.) Coding in the delivered condition Possible change Internal circulation pump function 51:0 System with low loss 51:1 System with low loss header: header: Internal circulation pump When there is a heat always starts when there demand, the internal circu- is a heat demand.

  • Page 69: Select Boiler

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

  • Page 70: Dhw

    Code 1 Coding Coding in the delivered condition Possible change Set DHW temp reheat suppression 67:40 For solar DHW heating: 67:0 Set DHW temperature set DHW temperature adjustable from 0 to 95 °C 40 °C. Reheating of DHW 67:95 (limited by boiler-specific is suppressed above the parameters) selected set tempera-...

  • Page 71: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3

    Code 1 Solar (cont.) Coding in the delivered condition Possible change Reducing stagnation time 0A:5 To protect the system 0A:0 The differential between components and heat the set cylinder tempera- transfer medium, the 0A:40 ture and the start point for speed of the solar circuit reducing the stagnation pump is reduced when...
  • Page 72 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 73 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Pump idle time transition red. mode A9:7 With pump idle time: A9:0 Without pump idle time Heating circuit pump A9:1 With pump idle time; "OFF"...
  • Page 74 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Flow temperature minimum limit C5:20 Electronic minimum flow C5:1 Minimum limit adjustable temperature limit 20 °C from 1 to 127 °C (limited by C5:127 boiler-specific parameters) Flow temperature maximum limit...
  • Page 75 Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change Party mode time limit F2:8 Time limit for party mode F2:0 No time limit for party or external heating pro- mode gram changeover via key: F2:1 Time limit adjustable from 1 to 12 h...

  • Page 76: Calling Up Coding Level 2

    Code 2 Calling up coding level 2 Note 4. Select group of required coding ■ In coding level 2, all codes are acces- address: sible, including the codes from coding ■ "General" level 1. ■ "Boiler" ■ Codes that have no function due to the ■...
  • Page 77 Code 2 General (cont.) Value System Description address version 00: ... One heating circuit without mixer A1 (heating circuit 1), with DHW heating (code is adjusted automatically) One heating circuit with mixer M2 (heating circuit 2), with DHW heating 3, 4 One heating circuit without mixer A1 (heating circuit 1) and one heating circuit with mixer M2 (heating circuit 2), with DHW heating (code is adjusted automatically)
  • Page 78 Code 2 General (cont.) Coding in the delivered condition Possible change 3A:0 Function input DE1 at 3A:1 Function input DE1: Heat- extension EA1: without ing program changeover function 3A:2 Function input DE1: Exter- nal demand with set flow temperature. Function internal circula- tion pump: Coding address 3A:3 Function input DE1: Exter-...
  • Page 79 Code 2 General (cont.) Coding in the delivered condition Possible change 3b:0 Function input DE2 at 3b:1 Function input DE2: Heat- extension EA1: without ing program changeover function 3b:2 Function input DE2: Exter- nal demand with set flow temperature. Function internal circula- tion pump: Coding address 3b:3 Function input DE2: Exter-...
  • Page 80 Code 2 General (cont.) Coding in the delivered condition Possible change 3C:0 Function input DE3 at 3C:1 Function input DE3: Heat- extension EA1: without ing program changeover function 3C:2 Function input DE3: Exter- nal demand with set flow temperature. Function internal circula- tion pump: Coding address 3C:3 Function input DE3: Exter-...
  • Page 81 Code 2 General (cont.) Coding in the delivered condition Possible change 3F:0 Internal circulation pump 3F:1 Internal circulation pump stays in control mode at stops at signal "External signal "External demand" demand" 3F:2 Internal circulation pump starts at signal "External demand"...
  • Page 82 Code 2 General (cont.) Coding in the delivered condition Possible change 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 7b:0 Does not transmit time module: The control unit transmits the time (only for weather-compensa-...
  • Page 83 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 of several sys- 98:5...

  • Page 84: Select Boiler

    Code 2 General (cont.) Coding in the delivered condition Possible change 9C:20 Monitoring LON subscrib- 9C:0 No monitoring ers. 9C:5 The time is adjustable from If a subscriber fails to 5 to 60 min respond, the values 9C:60 specified inside the con- trol unit will be used after 20 min.
  • Page 85 Code 2 Select boiler (cont.) Coding in the delivered condition Possible change 21:0 No service interval (hours 21:1 The 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 ≙...

  • Page 86: Dhw

    "External demand" "External demand" 5F:2 Circulation pump for cylin- der heating starts at signal "External demand" 65:... Information regarding the type of diverter valve (not adjustable): 1: Viessmann diverter valve 2: Wilo diverter valve 3: Grundfos diverter valve...
  • Page 87 Code 2 (cont.) Coding in the delivered condition Possible change 67:40 For solar DHW heating: 67:0 Set DHW temperature set DHW temperature adjustable from 0 to 95 °C 40 °C. DHW reheating is 67:95 (limited by boiler-specific suppressed above the parameters) selected set temperature (DHW heating blocked by...

  • Page 88: Solar

    Code 2 Solar Coding Coding in the delivered condition Possible change 00:8 The solar circuit pump 00:2 The differential between starts when the collector the actual cylinder temper- temperature exceeds the 00:30 ature and the start point for actual cylinder tempera- the solar circuit pump can ture by 8 K.
  • Page 89 5 K. 0b:0 Collector frost protection 0b:1 Collector frost protection function switched off function switched on (not required with Viessmann heat transfer medium). 0C:1 Delta T monitoring 0C:0 Delta T monitoring switched on. switched off. No flow rate captured in the collector circuit, or flow rate too low.
  • Page 90 Solar (cont.) Coding in the delivered condition Possible change 0E:1 Calculation of solar yield 0E:2 Calculation of solar yield with Viessmann heat with heat transfer medium transfer medium water (do not adjust) 0E:0 Calculation of solar yield switched off 0F:70...

  • Page 91: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3

    Code 2 Heating circuit 1, heating circuit 2, heating circuit 3 Coding Coding in the delivered condition Possible change A0:0 Without remote control A0:1 With Vitotrol 200A (auto- matic recognition) A0:2 With Vitotrol 300A or Vitohome 300 (automatic recognition) A1:0 All possible settings at A1:1 Only party mode can be set...
  • Page 92 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A4:0 With frost protection A4:1 No frost protection; this set- ting is only possible if code "A3:-9" has been selected. Note See "Please note" regard- ing coding address "A3"...
  • Page 93 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A6:36 Extended economy mode A6:5 Extended economy control disabled enabled, i.e. the burner and A6:35 heating circuit pump will stop and the mixer close at a variable value, adjustable between 5 and 35 °C plus 1 °C.
  • Page 94 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change b0:0 With remote control: b0:1 Heating mode: weather- Heating mode/reduced compensated mode: weather-compen- Reduced mode: with room sated (change code only temperature hook-up for the heating circuit with b0:2 Heating mode: with room...
  • Page 95 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change C5:20 Electronic minimum flow C5:1 Minimum limit adjustable temperature limit 20 °C from 1 to 127 °C (limited by C5:127 boiler-specific parameters) C6:74 Electronic maximum flow C6:10 Maximum limit adjustable...
  • Page 96 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change d8:0 No heating program d8:1 Heating program change- changeover via extension over via input DE1 at exten- sion EA1 d8:2 Heating program change- over via input DE2 at exten- sion EA1 d8:3...
  • Page 97 Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change F9:-14 Temperature limit for rais- F9:+10 Temperature limit for rais- ing the reduced set room ing the set room tempera- temperature -14 ºC, see F9:-60 ture to the value selected example on page 140.

  • Page 98: Diagnosis And Service Scans

    Diagnosis and service scans Calling up the service menu 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 Solar Brief scan Coding level 2 Reset data Fault history...
  • Page 99 Diagnosis and service scans Diagnosis (cont.) Resetting operating data Saved operating data (e.g. hours run) can be reset to 0. The value "Adjusted outside temp" is reset to the actual value. 1. Press OK and å simultaneously 3. "Reset data" for approx.
  • Page 100 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Software Software Software Software version version version version Program- Mixer Solar con- ming unit exten- trol mod- module sion ule SM1 0: No mixer exten- sion Software version Type Appliance type Burner control unit Burner control unit Number of LON sub-...

  • Page 101: Checking Outputs (Actuator Test)

    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 102 Diagnosis and service scans Checking outputs (actuator test) (cont.) Display Explanation Htg circ pump HC3 start Heating circuit pump output enabled (extension to heat- ing 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 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: Fault Codes

    Troubleshooting Fault codes Displayed System characteris- Cause Measures fault code tics Regulates as if the Short circuit, out- Check the outside tem- outside temperature side temperature perature sensor (see was 0 °C sensor page 116). Regulates as if the Lead break, out- Check the outside tem- outside temperature side temperature...
  • Page 105 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics No DHW heating Short circuit, outlet Check sensors (see temperature sen- page 117) No DHW heating Lead break, cylin- Check sensors (see der temperature page 117) sensor No DHW heating Lead break, outlet Check sensors (see temperature sen-...
  • Page 106 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Control mode Max. system pres- Check system pressure. sure exceeded Check the function and sizing of the diaphragm expansion vessel. Vent the heating system. Coding address "0E" (group boiler/1) is set to "1"...
  • Page 107 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner blocked Lead break, flue Check the flue gas tem- gas temperature perature sensor sensor Mixer regulates to 20 Communication Check the extension kit °C flow temperature. error, extension kit connections and coding for heating circuit 2 (with mixer)
  • Page 108 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Control mode Communication Check Open Therm error, Open Therm extension extension Control mode Communication Check connections, error, Vitocom 100 Vitocom 100 and coding (KM BUS) address "95" Control mode Communication Replace the LON commu- error, LON com-...
  • Page 109 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Control mode without Lead break, room Check room temperature room influence temperature sen- sensor for heating circuit 3 sor, heating circuit and remote control set- 3 (with mixer) tings (see page 143) Control mode Fault external LON...
  • Page 110 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner in a fault The ionisation cur- Check gas supply (gas state rent lies outside the pressure and gas flow lim- permissible range iter), gas train and con- necting lead.
  • Page 111 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner in a fault Parameter fault Press reset button R state during calibration Replace boiler coding card and press reset but- ton R. Burner in a fault Internal fault Replace the control unit.
  • Page 112 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner blocked Internal fault Replace the control unit. Burner in a fault Flue gas tempera- Check the heating system state ture limiter has fill level. Vent the system. responded.
  • Page 113 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner in a fault Fault, burner con- Check ignition electrodes state trol unit and connecting cables. Check whether a strong interference (EMC) field exists near the appliance. Press reset button R. Replace control unit if the fault persists.

  • Page 114: 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 115 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 116 Troubleshooting Repairs (cont.) Checking the outside temperature sensor 1. Pull plug "X3" from the control unit. 2. Test the resistance of the outside temperature sensor across terminals "X3.1" and "X3.2" on the disconnec- ted plug and compare it with the curve.
  • Page 117 Troubleshooting Repairs (cont.) Checking the boiler water temperature sensor, cylinder temper- ature sensor or flow temperature sensor of the low loss header...
  • Page 118 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 119 Troubleshooting Repairs (cont.) 1. ■ Cylinder temperature sensor & Remove plug % from solar control module A and measure the resist- ance. ■ Collector temperature sensor Disconnect lead from terminal box B and measure its resistance. Temperature in °C A Collector temperature sensor B Cylinder temperature sensor 2.
  • Page 120 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 case of severe deviation. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding).
  • Page 121 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 122 Troubleshooting Repairs (cont.) Checking the plate heat exchanger Note Drain the boiler on its heating water and DHW side. During removal, small amounts of water may trickle out and escape from the plate heat exchanger. 1. Shut off and drain the boiler on its 4.
  • Page 123 Troubleshooting Repairs (cont.) 6. Check the connections on the heat- 7. Install in reverse order with new gas- ing water and DHW side for contam- kets. ination and scaling; if required, replace the plate heat exchanger. Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx.
  • Page 124 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).
  • Page 125 Troubleshooting Repairs (cont.) Checking the solar control module fuse 1. Switch OFF the power. 2. Check fuse A in the solar control module (see connection and wiring diagram). Extension kit for heating circuit with mixer Checking the setting of rotary selec- Checking the rotational direction of tor S1 the mixer motor...
  • Page 126 Troubleshooting Repairs (cont.) Note the rotational direction of the mixer motor during its self-test. Then set the mixer manually to "Open" again. Note The flow temperature sensor must now capture a higher temperature. If the tem- perature drops, either the motor is turn- ing in the wrong direction or the mixer set is incorrectly fitted.

  • Page 127: Function Description

    Function description Control unit Boiler temperature 48 °C Heating Solar energy Information Select with 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.
  • Page 128 Function description Control unit (cont.) The primary cylinder is heated up to the After heating, the cylinder primary pump set DHW temperature. Heating stops and the three-way diverter valve remain when the set temperatures have been ON for a further 30 s. reached at the cylinder temperature sen- sor and at the outlet temperature sen- sor.

  • Page 129: Internal Extensions

    Function description Control unit (cont.) Boosting DHW heating The booster heating function is activated The set temperature value for the heat- if a switching period is selected for the ing boost is adjustable in coding address fourth time phase. "58". Internal extensions Internal extension H1 The internal extension H1 is integrated...
  • Page 130 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 131: External Extensions (Accessories)

    Function description External extensions (accessories) Extension AM1 fÖA Power supply terminal for addi- Circulation pump Circulation pump tional accessories fÖ Power supply [terminals] aVG KM BUS...
  • Page 132 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 133 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 fÖ Power supply [terminals] fÖA Power supply terminal for addi- tional accessories...
  • Page 134 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 135: 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 136 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 137 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 138 Function description Control functions (cont.) When the screed drying function is acti- The various temperature profiles are vated, the heating circuit pump of the adjustable via coding address "F1". mixer circuit is switched ON and the flow The function continues after power fail- temperature will be held in accordance ure or after the control unit has been with the selected profile.
  • Page 139 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 140 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 141 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 142 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 143: 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- out mixer A1 The remote control affects the heating circuit with mixer M2 The remote control affects the heating circuit with...
  • Page 144 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-...

  • Page 145: 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 146: External Connection Diagram

    Designs External connection diagram Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
  • Page 147 Designs External connection diagram (cont.) Connection adaptor Cylinder temperature sensor LON communication module (plug on the cable harness) Internal extension H1 sÖ Internal circulation pump ON/OFF switch Cylinder primary pump Reset button Gas solenoid valve X... Electrical interfaces fÖ Power supply KM BUS to the solar control mod- Power supply accessories and Vitotrol 100...

  • Page 148: Connection Diagram, Solar Control Module

    Designs Connection diagram, solar control module Main PCB Cylinder temperature sensor TW Temperature limiter & Collector temperature sensor X... Electrical interfaces Solar circuit pump KM BUS from the control unit fÖ Power supply Power supply from the control unit aVG KM BUS...

  • Page 149: Parts Lists

    Parts lists Parts lists Spare parts information 034 Heating water flow connecting pipe Quote the part and serial no. (see type 035 Connection pipework, heating plate) and the item number of the water return required part (as per this parts list). 036 Connection pipework, cold water Obtain standard parts from your local 037 DHW connecting pipe...
  • Page 150 Parts lists Parts lists (cont.) 081 Gasket set A 17 x 24 x 2.0 162 Sleeve 082 Gasket set A 10 x 15 x 1.5 164 Cylinder gasket 084 Gasket 23 x 30 x 2.0 166 Anode flange with gasket 085 O-ring gasket set 17.86 x 2.62 167 Flange insulation 086 O-ring 9.6 x 2.4...
  • Page 151 Parts lists Parts lists (cont.) Parts not shown 319 Adaptor lead for collector tempera- 108 Special grease ture sensor 209 Touch-up paint stick, Vitowhite 320 Plug set, LV 210 Spray paint, Vitowhite 321 Plug set, 230 V 310 Cable harness X8/X9/ionisation 322 KM BUS connecting cable aVG 311 Cable harness 100/35/54 (auxiliary 323 Power cable fÖ...
  • Page 152 Parts lists Parts lists (cont.)
  • Page 153 Parts lists Parts lists (cont.)
  • Page 154 Parts lists Parts lists (cont.)
  • Page 155 Parts lists Parts lists (cont.)
  • Page 156 Parts lists Parts lists (cont.)
  • Page 157 Parts lists Parts lists (cont.)
  • Page 158 Parts lists Parts lists (cont.) 084 174 084...

  • Page 159: 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 160: Specification

    Specification Specification Rated voltage 230 V Electronic tempera- Rated frequency 50 Hz ture limiter setting 82 °C Rated current Temperature limiter Protection class setting 100 °C (fixed) IP rating IP X 4 D to Line fuse (power sup- EN 60529 ply) max.

  • Page 161: Certificates

    Certificates Declaration of conformity Declaration of conformity for the Vitodens 242-F We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon- sible body, that the product Vitodens 242-F complies with the following standards: DIN 4753 EN 55 014 EN 483...

  • Page 162: 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 Vitodens 242-F meets the NO limits specified by the 1st BImSchV paragraph 7 (2) [Germany]. Allendorf, 2 April 2010 Viessmann Werke GmbH&Co KG...

  • Page 163: Keyword Index

    Keyword index Keyword index Acknowledging a fault display..103 Electronic combustion controller..143 Actuator test........101 Extension Allocating heating circuits....143 ■ AM1..........131 ■ EA1..........133 ■ Internal........129, 130 Boiler water temperature sensor..117 Extension kit for heating circuit with Boosting DHW heating.....129 mixer ..........125 Brief scans.........99 External blocking......136 Burner gasket........39 External demand......136...
  • Page 164 Keyword index Keyword index (cont.) Room temperature adjustment..60 LON............61 Rotational direction of mixer motor ■ Fault monitoring......62 ■ Changing........126 ■ Setting subscriber numbers....61 ■ Checking........125 LON communication module....61 LON subscriber check......62 Safety chain ........123 Scanning operating conditions...98 Magnesium anode Scanning operating data....98 ■...
  • Page 168 Type FB2B from serial no. 4.8 to 19 kW 7438 015 ... 6.5 to 26 kW 7438 016 ... 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...

This manual is also suitable for:

Vitodens 242-f

Table of Contents