Page 1 VIESMANN Installation and service instructions for contractors Vitodens 242-F Type B2UA, 3.2 to 26 kW Gas condensing/solar storage combi boiler Gas council no. 41-819-18; 41-819-19 Natural gas and LPG version 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 If the boiler is operated at Defective components must be the same time, this can lead to reverse replaced with genuine flow of the flue gas. Viessmann spare parts.
Page 4 Installing non-author- ised components and making non-approved modifications or conversions can compromise safety and may invalidate our warranty. For replacements, use only orig- inal spare parts supplied or approved by Viessmann.
Page 5: Table Of Contents
Index Index Installation instructions Preparing for installation Product information....................Preparing the installation..................Installation sequence Installing the boiler....................21 Opening the control unit casing................29 Electrical connections................... 30 Closing the control unit casing................39 Fitting the front panels..................41 Service instructions Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance..........
Page 6 Index Index (cont.) Function description Control unit......................151 Internal extensions (accessories)................. 153 External extensions (accessories)................ 156 Control functions....................160 Allocating heating circuits to the remote control........... 168 Electronic combustion control unit................ 168 Designs Internal connection diagram................. 170 External connection diagram................171 Connection diagram, solar control module............
Page 7: Preparing For Installation
Preparing for installation Product information Vitodens 242-F, type B2UA Preset for operation with natural gas E In principle the Vitodens 242-F may only and natural gas LL. be delivered to countries listed on the For conversion to LPG P (without con- type plate.
Page 8 Preparing for installation Preparing the installation (cont.) Dividing the boiler into sections 4. 2x...
Page 9 Preparing for installation Preparing the installation (cont.)
Page 10 Preparing for installation Preparing the installation (cont.)
Page 11 Preparing for installation Preparing the installation (cont.)
Page 12 Preparing for installation Preparing the installation (cont.)
Page 13 Preparing for installation Preparing the installation (cont.)
Page 14 Preparing for installation Preparing the installation (cont.)
Page 15 Preparing for installation Preparing the installation (cont.)
Page 16 Preparing for installation Preparing the installation (cont.) Siting Required room height: at least 2100 mm Preparing for boiler installation Use a connection set, available as an Please note accessory, to make the connection on Avoid device damage. the gas and water sides. Connect all pipework free of load and torque stress.
Page 17 Preparing for installation Preparing the installation (cont.) The following overview shows sample connection sets for installation on fin- ished walls, with connection to the top or side.
Page 18 Preparing for installation Preparing the installation (cont.) A Solar return R¾ B Heating flow R¾ C DHW R½ D Gas connection R½ E DHW circulation R½ (separate accessory) F Cold water R½ G Heating return R¾ H Solar flow R¾ K Condensate drain facing backwards into the wall L Condensate drain to the side...
Page 19 Preparing for installation Preparing the installation (cont.) 2. Prepare the connections on the DHW side. Install the safety assembly (accessory or on-site provision) in the cold water line in accordance with DIN 1988 and EN 806 (see page 20). Recommendation: Install the safety valve above the DHW cylinder to protect it against contamination, scaling and high tem-...
Page 20 Preparing for installation Preparing the installation (cont.) Safety assembly in accordance with DIN 1988 and EN 806 to the cold water connection A Safety assembly (accessory for the G Non-return valve connection sets on unfinished H Drain walls) K Cold water B Safety valve L Drinking water filter C Visible discharge pipe outlet point...
Page 21: Installation Sequence
Installation sequence Installing the boiler Removing the front panels...
Page 22 Installation sequence Installing the boiler (cont.) Siting and levelling the boiler SW17...
Page 23 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 R¾ D Cold water R½ B DHW R½ E Heating return R¾ C DHW circulation R½ (separate accessory)
Page 24 Installation sequence Installing the boiler (cont.) Connections on the solar side Shown with connection sets for finished walls (accessories) A Solar return R¾ or Ø 22 mm, B Solar flow R¾ or Ø 22 mm, smooth smooth pipe pipe Note ■...
Page 25 Installation sequence Installing the boiler (cont.) Condensate connection 3. Route condensate hose M as a U- bend and connect with a constant fall and a pipe vent to the public sewage system or to a neutralising system. If necessary, connect to an on-site siphon.
Page 26 ■ Applicable regulations on installing tation may only be used in conjunction and commissioning flue systems have with the Viessmann flue system made been followed. by Skoberne. ■ During installation and positioning of Danger...
Page 27 Installation sequence Installing the boiler (cont.) Gas connection Shown with connection sets for finished walls (accessories) A Gas connection R½ 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 Only use suitable and approved leak...
Page 28 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 53 Max. test pressure 150 mbar (15 kPa). Where higher pres- sure is required for tightness tests, disconnect the boiler and the gas valves from the...
Page 29: Opening The Control Unit Casing
Installation sequence Opening the control unit casing...
Page 30: Electrical Connections
Installation sequence Electrical connections Please note Before beginning work, touch Electronic assemblies can be earthed objects, such as heating damaged by electrostatic dis- or water pipes, to discharge static charge. loads. 230V~ 230V~ 3 2 1 A Radio clock receiver B Jumper Connections to 230 V~ plug Connections to LV plug...
Page 31 Installation sequence Electrical connections (cont.) To connect several accessories, Information on connecting see page 35. accessories ■ Vitotrol 200A or 300A remote When connecting accessories control observe the separate installation ■ Vitocom 100, type GSM instructions provided with them. ■ Extension kit for one heating cir- cuit with mixer ■...
Page 32 Installation sequence Electrical connections (cont.) Connect collector temperature sensor & A to terminal box B with the prefitted lead of SM1 solar control module C. On-site extension cable D: 2-core, cross-section of 1.5 mm Note Cylinder temperature sensor % is con- nected at the factory.
Page 33 Installation sequence Electrical connections (cont.) Plug lH Extension EA1 A Floating contact A Floating contact (when connecting, B Extension EA1 remove jumper across L and 1) Codes Codes ■ "4b:1" in group "General"/1. ■ Set "3A" (DE1), "3b" (DE2) or "3C" ■...
Page 34 Installation sequence Electrical connections (cont.) 0 – 1 V ≙ No default set boiler water temperature ≙ Set value 10 °C ≙ Set value 100 °C [{{] fÖ 0-10V 10 V Ö L ? N 230 V~ 0-10 V External blocking via switching contact Connection options: Please note...
Page 35 Installation sequence Electrical connections (cont.) Plug lH Extension EA1 A Floating contact A Floating contact (when connecting, B Extension EA1 remove jumper across L and 1) Codes Codes ■ "4b:2" in group "General"/1 ■ Set "3A" (DE1), "3b" (DE2) or "3C" ■...
Page 36 Installation sequence Electrical connections (cont.) Power supply to all accessories via heat source control unit Some accessories with direct power supply A Heat source 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 mixer M3...
Page 37 Installation sequence Electrical connections (cont.) Power supply fÖ ■ Remove existing wires from plug fÖ. Danger Incorrect core allocation can ■ Install an isolator in the power cable result in serious injury and dam- which simultaneously separates all age to the appliance. non-earthed conductors from the Take care not to interchange mains with contact separation of at...
Page 38 Installation sequence Electrical connections (cont.) Routing the connecting cables Please note When routing and securing Connecting cables will be dam- cables/leads on site, ensure that aged if they touch hot compo- the maximum permissible tem- nents. peratures for these cables/leads are not exceeded.
Page 39: Closing The Control Unit Casing
Installation sequence Closing the control unit casing...
Page 40 Installation sequence Closing the control unit casing (cont.) Insert programming unit (packed sepa- rately) into the control unit support. Note The programming unit can also be inser- ted into a wall mounting base (accesso- ries) near the boiler. Wall mounting base installation instructions...
Page 41: Fitting The Front Panels
Installation sequence Fitting the front panels...
Page 42: 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..........45 • 2. Checking the power supply •...
Page 43 Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 23. Checking and adjusting the ignition and ionisation electrodes................ 61 • 24. Cleaning the heating surfaces........61 • • 25. Checking the condensate drain and cleaning the siphon................
Page 44: Commissioning Steps
Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • 45. Scanning and resetting the "Service" display..... 83 • • • 46. Fitting the cover panel and front panels...... 83 • 47. Instructing the system user........... 84...
Page 45: Further Details Regarding The Individual Steps
Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panels See page 21. Filling the heating system Fill water Please note Unsuitable fill water increases the level of deposits and corro- sion and may lead to boiler dam- age.
Page 46 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Shown with connection set for finished walls (accessories) 1. Check the pre-charge pressure of the 5. If the control unit had already been diaphragm expansion vessel. See switched on before filling began: page 69.
Page 47: Filling The Cylinder On The Dhw Side
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the cylinder on the DHW side 1. Lever on valve B must be in the "left" position. 2. Open on-site DHW supply and a DHW draw-off point. 3. Once air stops coming out of the DHW draw-off point, the DHW cylin- der is completely filled.
Page 48: Note On Automatic Testing Of The Flue Gas Temperature Sensor
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note on automatic testing of the flue gas temperature sensor As soon as the time and date have been Note set, the control unit automatically checks If the flue gas temperature sensor is the function of the flue gas temperature incorrectly positioned, commissioning sensor.
Page 49: Venting The Heating System
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the heating system 1. Close the gas shut-off valve and 5. Open the gas shut-off valve. switch the control unit ON. Activating the venting function 2. Check whether the air vent screw in quick-action air vent valve A of the Service menu 1.
Page 50: Filling The Siphon With Water
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the siphon with water 1. Pivot control unit forward. 2. Remove retaining clip A. 3. Pull filler pipe B upwards. 4. Remove trap C downwards. 5. Fill siphon with water and refit. 6.
Page 51: Filling The Solar Circuit
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Filling the solar circuit Solar thermal system installation 2. Fill solar circuit with "Tyfocor LS" via and service instructions fill valve A. ■ Minimum system pressure: 1.7 bar (0.17 MPa) ■...
Page 52: Designating The Heating Circuits
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Designating 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 53: 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 ON/OFF switch 3. Select the gas type in coding address "82": ■...
Page 54 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check the supply (flow) pressure. Set value: ■ Natural gas: 20 mbar (2.0 kPa) ■ LPG: 50 mbar (5.0 kPa) Note Use a suitable measuring device with a resolution of at least 0.1 mbar (0.01 kPa) to check the supply pres- sure.
Page 55: Function Sequence And Possible Faults
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Supply pressure (flow pressure) Action For natural gas For LPG Below 17.4 mbar Below 42.5 mbar Do not start the boiler. Notify your gas (1.74 kPa) (4.25 kPa) supply utility or LPG supplier. 17.4 to 25 mbar 42.5 to 57.5 mbar Start the boiler.
Page 56 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Gas train opens Fault EE Check the gas train (control voltage 230 V) and gas supply pressure Ionisation current Fault EE Check the ionisa- builds tion electrode ad- Symbol A justment and the gas line for air- locks.
Page 57: Setting The Max. Heating Output
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 be- tween ionisation electrode and burner gauze as- sembly. Check allocation of gas type (coding address 82, gas...
Page 58: Tightness Test, Balanced Flue System (Annular Gap Check)
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Tightness test, balanced flue system (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 59: Burner Removal
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner removal 4. Undo gas supply pipe fitting F. 1. Switch OFF the power supply and the ON/OFF switch at the control unit. 5. Undo four screws G and remove the 2.
Page 60: Checking The Burner Gasket And Burner Gauze Assembly
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the burner gasket and burner gauze assembly Check burner gasket A and burner gauze assembly E for possible damage and replace if required. 1. Remove electrodes B. 3. Undo two Torx screws and remove burner gauze assembly E with gas- 2.
Page 61: Checking And Adjusting The Ignition And Ionisation Electrodes
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Fit thermal insulation ring D. 6. Fit electrodes B. Torque: 4.5 Nm. Checking and adjusting the ignition and ionisation electrodes ±1 A Ignition electrodes B Ionisation electrode 1. Check the electrodes for wear and 3.
Page 62: Checking The Condensate Drain And Cleaning The Siphon
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Use a vacuum cleaner to remove deposits from heating surfaces A of the heat exchanger. 2. If required, rinse heating surfaces A with water. 3. Check condensate drain and clean siphon.
Page 63: Installing The Burner
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8. Check that the condensate pipe is Note connected correctly to the siphon and Route the drain hose without any heat exchanger. bends and with a constant fall. Installing the burner 1.
Page 64: Checking The Anode Connection
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Connect cables from fan motor A, gas train B, ionisation electrode C, ignition unit D and earth tab Checking the anode connection Check that the earth cable is connected to the magnesium anode.
Page 65: Testing The Anode Earth Current With An Anode Tester
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Testing the anode earth current with an anode tester Note We recommend that the magnesium anode function is checked annually. This function test can be carried out without interrupting operation, by measuring the earth current with an anode tester.
Page 66: Draining The Boiler On The Dhw Side
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Draining the boiler on the DHW side 2. Turn drain valve from lever position A to lever position B or C as required. ■ Lever position B: To drain the heating system but not the cylinder via the cold water connection.
Page 67: Cleaning The Primary Store
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary store Note According to EN 806, a visual inspection and (if necessary) cleaning must be car- ried out no later than two years after commissioning and thereafter as required.
Page 68: Checking And Replacing The Magnesium Anode (If Required)
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Use a chemical cleaning agent to 6. Thoroughly flush the primary store remove hard deposits that cannot be after cleaning. removed by a high pressure cleaner. Please note Never use hydrochloric acid based cleaning agents.
Page 69: Checking The Diaphragm Expansion Vessel And System Pressure
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Fit flange cover B and tighten eight 5. Fit cover E. screws D with a maximum torque of 25 Nm. 6. Fill the primary store with potable water. 4. Push earth cable C onto the tab. Checking the diaphragm expansion vessel and system pressure Check whether the installed diaphragm expansion vessel is adequate for the...
Page 70: 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 71: Checking The Combustion Quality
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the combustion quality The electronic combustion controller Note automatically ensures optimum combus- During commissioning, the combustion tion quality. During commissioning/ controller carries out an automatic cali- maintenance, only the combustion val- bration.
Page 72: 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 3. Select the lower heating output: Select "Base load OFF". Then "Base actual value deviate from the afore- load ON" appears and the burner mentioned ranges by more than 1 %, operates at its lower heating output.
Page 73 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...
Page 74 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...
Page 75 Further details regarding the individual steps (cont.) 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 7 Heating circuit pump M2...
Page 76 H1 or H2 System version 4 One heating circuit without mixer A1, one heating circuit with mixer M2 and system separation 1 Vitodens 242-F 6 Flow temperature sensor M2 2 Outside temperature sensor 7 Heating circuit pump M2 3 Heating circuit without mixer A1...
Page 77 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 4 Heating circuit pump A1 2 Outside temperature sensor...
Page 78: Adjusting The Heating Curves
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7 Heating circuit pump M2 qW Heating circuit pump M3 8 Extension kit for one heating circuit qE Extension kit for one heating circuit with mixer M2 with mixer M3 9 Heating circuit with mixer M3 (heat- qR Low loss header ing circuit 3)
Page 79 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note The differential temperature is adjusta- If the heating system includes heating ble via coding address "9F" in the "Gen- circuits with mixers, then the flow tem- eral" group. perature of the heating circuit without mixer is higher by a selected differential (8 K in the delivered condition) than the flow temperature of the heating circuits...
Page 80 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Standard set room temperature Reduced set room temperature Example 1: Adjustment of the standard Example 2: Adjustment of the reduced set room temperature from 20 to 26 °C set room temperature from 5 °C to 14 °C A Boiler water temperature or flow temperature in °C...
Page 81: Connecting The Control Unit To The Lon
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Extended menu: 1. å 2. "Heating" 3. Select heating circuit. 4. "Heating curve" 5. "Slope" or "Level" 6. Select heating curve according to the system requirements. Outside temperature in °C A Changing the slope B Changing the level (vertical parallel offset of the heating curve)
Page 82 Control unit receives — outside temperature, outside tempera- outside tempera- Set code "97:2". ture, ture, Set code "97:1". Set code "97:1". Viessmann system Viessmann system Viessmann system — number, number, number, Code "98:1". Code "98:1". Code "98:1". LON subscriber fault...
Page 83 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) ■ Successfully tested subscribers are Note designated with "OK". During the subscriber check, the display ■ Unsuccessfully tested subscribers are for the relevant subscriber shows the designated with "Not OK". subscriber no.
Page 84 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instructing the system user The system installer should hand the operating instructions to the system user and instruct the user in operating the system. This includes all components installed as accessories, e.g.
Page 85: Calling Up Coding Level 1
Code 1 Calling up coding level 1 ■ On control units for weather-compen- 4. Select coding address. sated operation codes are displayed as plain text. 5. Select value according to the follow- ■ Codes that have not been assigned a ing tables and confirm with OK.
Page 86 Code 1 "General" (cont.) Coding Coding in the delivered condition Possible change System design 00:2 One heating circuit with- 00:4 For system schemes, see out mixer A1 (heating cir- the following table: cuit 1) 00:10 Value ad- Description dress 00: ... One heating circuit without mixer A1 (heating circuit 1) (code is set au- tomatically) One heating circuit with mixer M2 (heating circuit 2)
Page 87 Code 1 "General" (cont.) Coding in the delivered condition Possible change Internal circulation pump function 51:0 Internal circulation pump 51:1 System with low loss head- always starts when there is a heat demand When there is a heat de- mand, the internal circula- tion pump is only started if the burner is operational.
Page 88: Boiler
Code 1 "General" (cont.) Coding in the delivered condition Possible change Lock out controls 8F:0 Operation enabled in 8F:1 Operation blocked in standard menu and ex- standard menu and exten- tended menu. ded menu. Emissions test mode can Note be enabled. The respective code is 8F:2 Operation enabled in...
Page 89: Dhw
Code 1 "Boiler" (cont.) Coding in the delivered condition Possible change Service status 24:0 "Service" not shown on 24:1 "Service" is shown on dis- display play (the address is auto- matically set and must be manually reset after the service) Filling/Venting 2F:0 Venting program/fill pro-...
Page 90: Heating Circuit
Code 1 "Solar" (cont.) Coding Coding in the delivered condition Possible change Speed control solar circuit pump 02:1 Solar circuit pump (multi 02:0 Solar circuit pump (multi stage) is speed-control- stage) is not speed-control- led with wave packet con- led. trol.
Page 91 Code 1 "Heating circuit ..." (cont.) Coding Coding in the delivered condition Possible change Economy function outside temperature A5:5 With heating circuit pump A5:0 Without heating circuit logic function (economy pump logic function control): Heating circuit A5:1 With heating circuit pump pump "OFF"...
Page 92 Code 1 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Extended economy function mixer A7:0 Only for heating circuit A7:1 With mixer economy func- with mixer: tion (extended heating cir- Without mixer economy cuit pump logic): function Heating circuit pump also "OFF": ■...
Page 93 Code 1 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Economy function room temperature b5:0 Only for heating circuit b5:1 Heating circuit pump logic with mixer and remote function, see the following control: b5:8 table. Without room tempera- ture-dependent heating circuit pump logic func- tion...
Page 94 Code 1 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Heating program - changeover d5:0 With external operating d5:1 The operating program program changeover (ob- switches to "Constant op- serve setting for coding eration with standard room addresses "3A", "3b"...
Page 95 Code 1 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Min. pump speed E7:30 Only for heating systems E7:0 Minimum speed adjustable without a heating circuit from 0 to 100 % of the max- with mixer: E7:100 imum speed Minimum speed of the in- ternal variable speed...
Page 96 Code 1 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Start temperature raising F8:–5 Temperature limit for ter- F8:+10 Temperature limit adjusta- minating reduced mode ble from –5 °C, see example on F8:–60 +10 to –60 °C page 165.
Page 97: Calling Up Coding Level 2
Code 2 Calling up coding level 2 ■ All codes are accessible in coding 5. Select coding address. level 2. ■ Codes that have not been assigned a 6. Select value according to the follow- function due to the heating system ing tables and confirm with OK.
Page 98 Code 2 "General" (cont.) Coding Coding in the delivered condition Possible change 00:2 One heating circuit with- 00:4 For system schemes, see out mixer A1 (heating cir- the following table: cuit 1) 00:10 Value ad- Description dress 00: ... One heating circuit without mixer A1 (heating circuit 1) (code is set au- tomatically) One heating circuit with mixer M2 (heating circuit 2) One heating circuit without mixer A1 (heating circuit 1)
Page 99 Code 2 "General" (cont.) Coding in the delivered condition Possible change 35:0 Without extension EA1 35:1 With extension EA1 (auto- matic recognition) 36:0 Function output aBJ at 36:1 Feed pump extension EA1: 36:2 DHW circulation pump Fault message 3A:0 Function input DE1 at ex- 3A:1 Operating program tension EA1:...
Page 100 Code 2 "General" (cont.) Coding in the delivered condition Possible change Internal circulation pump function: Coding address "3E" in this group. 3b:4 Function input DE2: Exter- nal blocking with fault mes- sage input Internal circulation pump function: Coding address 3b:5 Function input DE2: Fault message input 3b:6...
Page 101 Code 2 "General" (cont.) Coding in the delivered condition Possible change DHW circulation pump run- time adjustment: Coding address "3d" in this group 3d:5 DHW circulation pump 3d:1 DHW circulation pump run- runtime for brief opera- time adjustable from 1 to tion: 5 min 3d:60 60 min...
Page 102 Code 2 "General" (cont.) Coding in the delivered condition Possible change 53:1 Function connection sK 53:0 Central fault message of the internal extension: 53:2 External heating circuit DHW circulation pump pump (heating circuit 1) 53:3 External circulation pump for cylinder heating 54:3 Do not adjust 6E:50...
Page 103 Code 2 "General" (cont.) Coding in the delivered condition Possible change 80:2 The minimum fault duration until a fault message is is- 80:199 sued is adjustable from 10 to 995 s. 1 step ≙ 5 s 81:1 Automatic summer/win- 81:0 Manual summer/winter- tertime changeover time changeover...
Page 104 Vitotronic 200-H ed internally 98:1 With LON communication 98:1 System number adjustable module: from 1 to 5 Viessmann system num- 98:5 ber (in conjunction with monitoring several sys- tems via Vitocom 300) 99:0 Do not adjust 9A:0 Do not adjust...
Page 105: Boiler
Code 2 "General" (cont.) Coding in the delivered condition Possible change Differential temperature 8 K (only for weather- compensated control units) "Boiler" Select group "Boiler" (see page 97). Coding Coding in the delivered condition Possible change 04:1 Minimum burner pause 04:0 Systems with low loss time subject to the boiler...
Page 106: Dhw
Code 2 "Boiler" (cont.) Coding in the delivered condition Possible change 24:0 "Service" not shown on 24:1 "Service" is shown on dis- display play (the address is auto- matically set and must be manually reset after the service) 28:0 No burner interval igni- 28:1 Time interval adjustable tion...
Page 107 Code 2 "DHW" (cont.) Coding in the delivered condition Possible change Note Max. value subject to boiler coding card. Observe the max. permis- sible DHW temperature. 57:0 Do not adjust 58:0 Without auxiliary function 58:10 Input of a second set DHW for DHW heating temperature, adjustable 58:60...
Page 108: Solar
Code 2 "DHW" (cont.) Coding in the delivered condition Possible change 73:0 DHW circulation pump: 73:1 During the time program "ON" according to time "ON" from once per hour program 73:6 for 5 min to "ON" 6 times per hour for 5 min 73:7 Constantly "ON"...
Page 109 0b:0 Frost protection function 0b:1 Frost protection function for solar circuit switched for solar circuit switched on off. (not required with Viessmann heat transfer medium). 0C:1 Flow rate monitoring ac- 0C:0 Flow rate monitoring tive. switched off. No flow rate captured in the solar circuit, or flow rate too low.
Page 110: Heating Circuit
Coding in the delivered condition Possible change 0E:1 Solar yield calculated in 0E:2 Solar yield calculated in conjunction with conjunction with water as Viessmann heat transfer heat transfer medium. Do medium. not adjust 0E:0 No heat statement 0F:70 The flow rate of the solar...
Page 111 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change A1:0 All possible settings at A1:1 Only party mode can be set the remote control can be at the remote control (only accessed for Vitotrol 200) A3:2 Outside temperature be- A3:–9 Heating circuit pump "ON/...
Page 112 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Please note "Important" to ob- serve for coding ad- dress "A3". A5:5 With heating circuit pump A5:0 Without heating circuit logic function (economy pump logic function control): Heating circuit A5:1 With heating circuit pump pump "OFF"...
Page 113 Code 2 "Heating circuit ..." (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 stop and the mixer is closed at a variable value, adjustable between 5 and 35 °C plus 1 °C.
Page 114 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Heating mode/reduced b0:2 Heating mode: With room mode: Weather-compen- temperature hook-up sated Reduced mode: Weather- compensated b0:3 Heating mode/reduced mode: With room tempera- ture hook-up b2:8 Only for heating circuit b2:0 Without room influence with mixer and remote...
Page 115 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change C5:127 C6:74 Electronic maximum flow C6:10 Maximum limit adjustable temperature limit 74 °C from 10 to 127 °C (limited (only for weather-com- C6:127 by boiler-specific parame- pensated control units) ters) d3:14 Heating curve slope =...
Page 116 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change d7:2 At signal "External de- mand" heating circuit pump starts (subject to coding addresses "3A", "3b" and "3C") d8:0 With extension EA1: d8:1 Operating program No operating program changeover via input DE1.
Page 117 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change E8:1 Only for heating systems E8:0 Speed subject to the set- without a heating circuit ting in coding address with mixer: "E7" Minimum speed of the in- ternal variable speed heating circuit pump in operation with reduced...
Page 118 Code 2 "Heating circuit ..." (cont.) Coding in the delivered condition Possible change Note F2:12 Observe settings of cod- ing addresses "3A", "3b" and "3C" in group "Gen- eral", and "d5" and "d8" in group "Heating cir- cuit...". F8:–5 Temperature limit for ter- F8:+10 Temperature limit adjusta- minating reduced mode...
Page 119: Diagnosis And Service Scans
Diagnosis and service scans Service menu Calling up the service menu 1. Press OK and å simultaneously for approx. 4 s. 2. Select required menu. See following diagram. Exiting the service menu 1. Select "Terminate service?". Note 2. Select "Yes". The system exits the service level auto- 3.
Page 120: Diagnosis
Diagnosis and service scans Diagnosis Calling up operating data 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 called up if the components are installed in the system.
Page 121 Diagnosis and service scans Diagnosis (cont.) Diagnosis brief scan Select with For an explanation of the relevant values in the individual lines and fields, see the following table: Line (brief Field scan) System scheme 01 Software version, Software version, to 10 control unit programming unit Appliance version...
Page 122 Diagnosis and service scans Diagnosis (cont.) Line (brief Field scan) Heating circuit A1 Heating circuit M2 Heating circuit M3 (without mixer) (with mixer) (with mixer) Remote Software Remote Software Remote Software control version, control version, control version, re- 0: none remote 0: none remote...
Page 123: Checking Outputs (Actuator Test)
Diagnosis and service scans Checking outputs (actuator test) 1. Press OK and å simultaneously 2. "Actuator test" for approx. 4 s. The following relay outputs can be controlled subject to system design: Display Explanation All actuators All actuators are off Base load Burner operates at minimum output;...
Page 124: Troubleshooting
Troubleshooting Fault display In the event of a fault, 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 125: Fault Codes
Troubleshooting Fault codes Displayed System characteris- Cause Measures fault code tics Control mode Service Service required "0F" is only dis- played in the fault Note history After servicing, select code "24:0". Controls as if the out- Short circuit, out- Check outside tempera- side temperature side temperature ture sensor (see...
Page 126 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Mixer closes Short circuit, flow Check flow temperature temperature sen- sensor sor, heating circuit 2 (with mixer) Mixer closes Short circuit, flow Check flow temperature temperature sen- sensor sor, heating circuit 3 (with mixer) Mixer closes...
Page 127 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics No solar DHW heat- Short circuit, cylin- Check cylinder tempera- ing. der temperature ture sensor (see sensor; tempera- page 140) ture sensor % connection on the solar control mod- ule.
Page 128 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 expansion vessel. Vent the heating system. Coding address "0E" is set to "1" to document the fault.
Page 129 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner blocked Lead break, flue Check flue gas tempera- gas temperature ture sensor sensor Mixer regulates to Communication er- Check the extension kit 20 °C flow tempera- ror, extension kit connections and coding ture.
Page 130 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Control mode without Communication er- Check connections, cable remote control ror, remote control and coding address "A0" Vitotrol heating cir- in group "Heating cir- cuit 3 (with mixer) cuit", and check remote control configuration (see page 168).
Page 131 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Control mode Communication er- Check LON communica- No communication ror, LON communi- tion module and replace if via LON. cation module required. If no LON communication module is installed, set code "76:0"...
Page 132 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner in a fault Ionisation current Check gap between ioni- state too high during cal- sation electrode and burn- ibration er gauze assembly (see page 61). In open flue operation, prevent high incidence of dust in the combustion air.
Page 133 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 permissible range switch), gas train and con- necting lead. Check allocation of gas type (see page 52).
Page 134 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner in a fault Parameter fault Press reset button R or state during calibration Replace boiler coding card and press reset but- ton R. Burner in a fault Internal fault Replace control unit.
Page 135 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics Burner blocked Internal fault Replace control unit. Burner in a fault Flue gas tempera- Check heating system fill state ture limiter has re- level. Vent the system. sponded. Press reset button R after flue system has cooled down.
Page 136 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 fault persists.
Page 137: Repair
Troubleshooting Repair Putting the control unit in maintenance position If required for commissioning and serv- icing, the control unit can be put in a dif- ferent position.
Page 138 Troubleshooting Repair (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 139 Troubleshooting Repair (cont.) Checking the outside temperature sensor 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. 3. Where actual values deviate severely from the curve values, disconnect the wires at the sensor and repeat the test on the sensor itself.
Page 140 Troubleshooting Repair (cont.) Checking the boiler temperature sensor, cylinder temperature sensor or low loss header flow temperature sensor...
Page 141 Troubleshooting Repair (cont.) 2. Check the sensor resistance and compare it with the curve. 3. In the case of severe deviation, replace the sensor. Danger The boiler water temperature sensor is immersed in the heating water (risk of scald- ing). 10 30 50 70 90 110 Drain the boiler on the heating Temperature in °C...
Page 142 Troubleshooting Repair (cont.) & Temperature in °C A Collector temperature sensor (sen- B Cylinder temperature sensor (sen- sor type: NTC 20 kΩ) sor type: NTC 10 kΩ) 1. ■ Cylinder temperature sensor 2. Compare the sensor resistance with Remove plug % from solar control the curve.
Page 143 Troubleshooting Repair (cont.) Checking the outlet temperature sensor 1. Pull leads from outlet temperature sensor A. 2. Check the sensor resistance and compare it with the curve. 3. In the case of severe deviation, replace the sensor. Danger The outlet temperature sen- sor is immersed in the DHW (risk of scalding).
Page 144 Troubleshooting Repair (cont.) Checking the plate heat exchanger Note During disassembly and once removed, Drain the boiler on its heating water and small amounts of water may escape from DHW side. the plate heat exchanger. 1. Shut off and drain the boiler on the 4.
Page 145 Troubleshooting Repair (cont.) 6. Check the connections on the heat- 7. Install in reverse order using new ing water and DHW side for contam- gaskets. ination and scaling; if required, replace the plate heat exchanger. Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded.
Page 146 Troubleshooting Repair (cont.) 2. If necessary, correct the position of 3. Press reset button R and repeat com- the flue gas temperature sensor or missioning. replace faulty flue gas temperature The check is repeated until it is com- sensor. pleted successfully. Checking the temperature limiter If the burner control unit cannot be reset 1.
Page 147 Troubleshooting Repair (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 148 Troubleshooting Repair (cont.) Checking the solar control module fuse 2. Check fuse A in the solar control 1. Switch off the power. module (see connection and wiring diagram). Extension kit, mixer Checking the setting of rotary selec- Checking the rotational direction of tor S1 the mixer motor The rotary selector on the PCB of the...
Page 149 Troubleshooting Repair (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 insert is incorrectly fitted.
Page 150 Troubleshooting Repair (cont.) Check flow temperature sensor Pressure drop curve 10 30 50 70 90 110 Temperature in °C Sensor type: NTC 10 kΩ 1. Disconnect plug ? (flow tempera- 2. Check the sensor resistance and ture sensor). compare it with the curve. Replace the sensor in the case of severe deviation.
Page 151: 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 152 Function description Control unit (cont.) The primary store is heated up to the set After heating has ended, the cylinder pri- DHW temperature. Heating stops when mary pump and the 3-way diverter valve the specified temperature has been remain on for a further 30 s. reached at the cylinder temperature sen- sor.
Page 153: Internal Extensions (Accessories)
Function description Control unit (cont.) Boosting DHW heating This function is activated by specifying a Heating is boosted during the periods second set DHW temperature via coding selected in this time phase. address 58 in group "DHW" and activat- ing the fourth DHW phase for DHW heat- ing.
Page 154 Function description Internal extensions (accessories) (cont.) The internal extension is integrated into ■ Heating circuit pump for heating circuit the control unit casing. The following without mixer (code "53:2") alternative functions can be connected ■ Circulation pump for cylinder heating to relay output sK.
Page 155 Function description Internal extensions (accessories) (cont.) The internal extension is integrated into ■ Heating circuit pump for heating circuit the control unit casing. The following without mixer (code "53:2") alternative functions can be connected ■ Circulation pump for cylinder heating to relay output sK.
Page 156: External Extensions (Accessories)
Function description External extensions (accessories) Extension AM1 Circulation pump fÖ A Power supply for additional Circulation pump accessories fÖ Power supply aVG KM BUS...
Page 157 Function description External extensions (accessories) (cont.) Functions Select the output functions by means of the codes on the boiler control unit. One of the following circulation pumps can be connected to each of the connec- tions A1 and A2: ■ Heating circuit pump for the heating circuit without mixer ■...
Page 158 Function description External extensions (accessories) (cont.) Extension EA1 fÖ A Power supply for additional Fuse/MCB accessories Digital input 1 Central fault message/feed Digital input 2 pump/DHW circulation pump Digital input 3 (potential-free) 0 – 10 V 0 – 10 V input KM BUS fÖ...
Page 159 Function description External extensions (accessories) (cont.) Digital data inputs DE1 to DE3 The effect of the operating program changeover is selected via coding The following functions can be connec- address d5 in the "Heating circuit" ted alternatively: group. ■ External operating program change- The duration of the changeover is set via over for each heating circuit coding address F2 in the "Heating cir-...
Page 160: Control Functions
Function description External extensions (accessories) (cont.) Output aBJ Analogue input 0 – 10 V The 0 – 10 V hook-up provides an addi- The following functions can be connec- tional set boiler water temperature: ted to output aBJ: 0 – 1 V is taken as "no default for set ■...
Page 161 Function description Control functions (cont.) You can select which direction the heat- ing program changeover takes in coding address "d5" in the "Heating circuit" group: Heating program - changeover Code Changeover towards "Permanently reduced" or "Permanent d5:0 standby" mode (subject to the selected set value) Changeover towards "Constant heating mode"...
Page 162 Function description Control functions (cont.) External blocking and fault message input Code Input DE1 3A:4 Input DE2 3b:4 Input DE3 3C:4 The effect on the internal circulation The effect on the relevant heating circuit pump is selected in coding address pump is selected in coding address "3E"...
Page 163 Function description Control functions (cont.) Fill program In the delivered condition, the diverter Filling with the control unit switched valve is set to its central position, ena- bling the system to be filled completely. After the control unit has been switched If the system is to be filled with the control on, the diverter valve no longer goes into unit switched on, the diverter valve is...
Page 164 Function description Control functions (cont.) Temperature profile 2: (ZV parquet and flooring technology) code "F1:2" Days Temperature profile 3: Code "F1:3" Days Temperature profile 4: Code "F1:4" Days Temperature profile 5: Code "F1:5" Days...
Page 165 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 temperature raising can perature can be automatically raised be set in coding addresses "F8"...
Page 166 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 167 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 168: 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. Heating circuit Vitotrol configuration 200A/200 RF 300A/300 RF The remote control affects the heating circuit with- HC 1 out mixer A1 The remote control affects the heating circuit with HC 2 mixer M2...
Page 169 Function description Electronic combustion control unit (cont.) Air ratio λ– CO content Air ratio λ content content content content (%) for natu- (%) for natu- (%) for LPG P ral gas E ral gas LL 1.20 11.3 1.24 10.9 1.27 10.6 1.30 10.3...
Page 170: Designs
Designs Internal connection diagram Main PCB dÖ Stepper motor for diverter valve X... Electrical interfaces Thermal circuit breaker § 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 171: External Connection Diagram
Designs External connection diagram Main PCB Burner control unit Power supply unit Programming unit Optolink Coding card...
Page 172 Designs External connection diagram (cont.) Connection adaptor sÖ Internal circulation pump LON communication module Cylinder primary pump (accessories) Gas solenoid valve Internal extension H1 or H2 fÖ Power supply (accessories) Power supply for SM1 solar con- ON/OFF switch trol module, accessories and Reset button Vitotrol 100 X...
Page 173: Connection Diagram, Solar Control Module
Designs Connection diagram, solar control module Main PCB Cylinder temperature sensor PWM Speed control solar circuit pump & Collector temperature sensor X... Electrical interfaces Solar circuit pump KM BUS from the control unit fÖ Power supply Power supply from the control KM BUS unit Terminal box, collector tempera-...
Page 174: Parts Lists
Parts lists Ordering individual parts The following information is required: Standard parts are available from your ■ Serial no. (see type plate A) local dealer. ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list)
Page 175: Overview Of The Assemblies
Parts lists Overview of the assemblies A Type plate C Hydraulic assembly with hydraulic B Casing assembly block D Primary store assembly...
Page 176: Casing
Parts lists Overview of the assemblies (cont.) E Heat cell assembly with MatriX cyl- F Control unit assembly inder burner G Miscellaneous Casing 0001 Side panel, right 0008 Side panel, left 0002 Front panel, top 0009 Front panel, bottom 0003 Adjustable foot 0010 Retaining clip 0004 Control unit support 0011 Top panel insert...
Page 177 Parts lists Casing (cont.) 0011 0012 0008 0007 0005 0005 0013 0013 0006 0005 0014 0002 0013 0014 0004 0013 0009 0001 0003 0013...
Page 178: Hydraulics
Parts lists Hydraulics 0001 Hydraulic block 0026 Round sealing ring 8 x 2 (5 pce) 0002 Set of plug-in connector retainers 0027 Connection line, DHW charging (2 pce) 0028 Shut-off valve, DHW cylinder 0003 Diaphragm grommet (5 pce) 0029 Flow pipe 0004 Diaphragm grommet (5 pce) 0030 Expansion vessel 0005 Clip Ø...
Page 179 Parts lists Hydraulics (cont.) 0046 0030 0050 0047 0002 0012 0037 0029 0008 0002 0005 0003 0036 0008 0009 0009 0047 0033 0043 0043 0033 0046 0006 0047 0008 0020 0005 0047 0005 0005 0026 0046 0001 0035 0026 0012 0006 0047 0047...
Page 180 Parts lists Hydraulics (cont.) Hydraulic block 0001 Return unit 0010 Overflow pipe 0002 Profiled gasket 0011 Flow unit 0003 Plug Ø 8/Ø 10 0012 Valve insert 0004 Clip Ø 8 (5 pce) 0013 Overflow valve 0005 Clip Ø 10 (5 pce) 0014 O-ring 17.86 x 2.62 (5 pce) 0006 Clip Ø...
Page 181: Cylinder Module
Parts lists Hydraulics (cont.) 0008 0009 0012 0014 0016 0011 0004 0018 0002 0012 0017 0014 0002 0015 0006 0010 0014 0015 0013 0016 0014 0003 0005 0016 0015 0016 0001 0003 0015 0016 0016 0016 0016 0003 0005 0005 0007 Cylinder module 0001 Primary store...
Page 182 Parts lists Cylinder module (cont.) 0007 Sensor well with clamp G 1/2 0017 O-ring 17.86 x 2.62 (5 pce) l = 150 0018 Pipe connector 0008 Non-return valve with body 0019 Connection pipe, solar flow 1 (fem.) x 1 (male) 0020 Connection pipe, central draw- 0009 Filling facility for solar heat trans- fer medium...
Page 183 Parts lists Cylinder module (cont.) 0002 0020 0023 0024 0023 0026 0024 0003 0023 0013 0023 0024 0017 0024 0004 0017 0001 0002 0022 0004 0012 0024 0029 0028 0024 0010 0024 0024 0027 0024 0008 0018 0016 0002 0027 0021 0024 0019...
Page 184 Parts lists Cylinder module (cont.) Primary store 0001 Primary store 0007 Gasket 23 x 30 x 2 (5 pce) 0002 Sensor retainer 0008 Sleeve 0003 Magnesium anode 0009 Flange insulation 0004 Gasket 0010 Cylinder temperature sensor 0005 Flange with gasket NTC 10kΩ...
Page 185 Parts lists Cylinder module (cont.) 0009 0007 0005 0004 0008 0004 0007 0006 0003 0001 0002 0010...
Page 186: Heat Cell
Parts lists Heat cell 0001 MatriX cylinder burner 0014 Diaphragm grommet (5 pce) 0002 Heat exchanger 0015 Gasket A 17 x 24 x 2 (5 pce) 0003 Thermal insulation block 0016 Condensate hose 0004 Flue gasket 0017 O-rings 35.4 x 3.59 (5 pce) 0005 Flue gas temperature sensor 0018 Condensate hose 0006 Boiler flue connection...
Page 187 Parts lists Heat cell (cont.) 0008 0005 0006 0009 0007 0015 0007 0008 0023 0024 0004 0007 0023 0009 0002 0003 0023 0004 0023 0011 0009 0001 0023 0009 0003 0020 0012 0015 0014 0016 0013 0012 0015 0016 0021 0014 0018 0009...
Page 188 Parts lists Heat cell (cont.) MatriX cylinder burner 0001 Burner gasket (wearing part) 0012 Gasket, ionisation electrode 0002 Thermal insulation ring (5 pce) 0003 Cylinder burner gauze assembly 0013 Gasket, ignition electrode 0004 Gasket, burner gauze assembly (5 pce) 0005 Ignition electrode (wearing part) 0014 Blade terminal (10 pce) 0006 Ionisation electrode (wearing 0015 Mixture restrictor...
Page 189: Control Unit
Parts lists Heat cell (cont.) 0018 0004 0002 0001 0015 0004 0003 0018 0001 0004 0007 0012 0013 0010 0018 0013 0005 0013 0012 0006 0011 0012 0014 0007 0008 0007 0019 0009 0016 0017 0019 Control unit 0001 Control unit 0005 Fuse holder 0002 Control unit casing back panel 0007 Programming unit for weather-...
Page 190 Parts lists Control unit (cont.) 0009 PCB adaptor 0019 KM BUS cable 145 0010 Cable harness X8/X9/ionisation 0020 Internal extension H1 0011 Cable harness 100/35/54/PE 0021 Internal extension H2 0012 Power cable, stepper motor 0022 Connecting cable, cylinder pri- 0013 Mating plug (set) mary pump 0014 Cable fixing 0023 Power cable...
Page 191: Miscellaneous
Parts lists Control unit (cont.) 0013 0002 0009 0008 0005 0009 0015 0020 0001 0003 0015 0021 0014 0005 0004 0015 0017 0007 0018 0010 0011 0012 0019 0022 0023 0024 Miscellaneous 0001 Special grease 0004 Installation and service instruc- 0002 Spray paint, Vitowhite tions 0003 Touch-up paint stick, Vitowhite...
Page 192 Parts lists Miscellaneous (cont.) 0005 Operating instructions for con- stant temperature mode 0006 Operating instructions for weath- er-compensated mode 0002 0003 0004 0001 0005 0006...
Page 193: Commissioning/Service Reports
Commissioning/service reports Commissioning/service reports Settings and actual values Set value Commis- Mainte- sioning nance/ Service Date Signature Static pressure mbar ≤ 57.5 ≤ 5.75 Supply pressure (flow pres- sure) = for natural gas E mbar 17.4-25 1.74-2.5 = for natural gas LL mbar 17.4-25 1.74-2.5...
Page 194: Specification
Specification Specification Rated voltage 230 V Electronic tempera- Rated frequency 50 Hz ture limiter setting 82 °C Rated current Temperature limiter Safety category setting 100 °C (fixed) IP rating IP X 4 D to Backup fuse (power EN 60529 supply) Max.
Page 195: Certificates
Certificates Declaration of conformity We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon- sible body that the product Vitodens 242-F, type B2UA, complies with the following standards: DIN 4753 EN 55 014 EN 483 EN 60 335-1 EN 625...
Page 196: 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, type B2UA, complies with the NO limits specified by the 1st BImSchV Paragraph 6 [Germany]. Allendorf, 01 January 2013 Viessmann Werke GmbH&Co KG...
Page 197: Keyword Index
Keyword index Keyword index Acknowledging a fault display..124 Electronic combustion controller..168 Actuator test........123 Extension Assembly.........174 ■ AM1..........156 ■ EA1..........158 ■ Internal H1........153 Boiler draining ■ Internal H2........154 ■ DHW side........66 Extension kit for heating circuit with Boiler water temperature sensor..140 mixer ..........148 Boosting DHW heating.....153 External blocking......161...
Page 198 Keyword index Keyword index (cont.) Relay test.........123 Ignition..........61 Remote control.........168 Ignition electrodes......61 Removing a fault display....124 Ionisation electrode......61 Removing the front panels....45 Report..........193 Rotational direction, mixer motor Language, changing......47 ■ Checking........148 LON............81 Rotational direction of mixer motor ■ Fault monitoring......82 ■...
Page 200 Applicability Serial No.: 7519083 7513244 7513245 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 Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

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B2ua

Viessmann VITODENS 242-F Installation And Service Instructions Manual

Index Installation Instructions

Preparing for Installation

Installation Sequence

Steps - Commissioning, Inspection and Maintenance

Commissioning, Inspection, Maintenance

Code

Checking the Static and Supply Pressure

Checking All Gas Equipment for Tightness at Operating

Diagnosis and Service Scans

Troubleshooting

Function Description

Designs

Parts Lists

Commissioning/Service Reports

Specification

Certificates

Keyword Index

Quick Links

Chapters

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Summary of Contents for Viessmann VITODENS 242-F

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Table of Contents