Viessmann FB2B Installation And Service Instructions Manual Download

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Installation and service

instructions

for contractors

VIESMANN

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

5412 755 GB

5/2010

Please keep safe.

Summary of Contents for FB2B

Page 1: ...rs VIESMANN 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 5412 755 GB 5 2010 Please keep safe ...

Page 2: ...f accidents all legal instructions regarding envi ronmental protection the Code of Practice of relevant trade associations all current safety regulations as defined by DIN EN DVGW TRGI TRF VDE and all locally applicable standards Gas Safety Installation Use Regu lations the appropriate Building Regulation either the Building regulations the Building Regulation Scotland Building Regulations Norther...

Page 3: ...static dis charges Touch earthed objects such as heating or water pipes to dis charge static loads Repair work Please note Repairing components which ful fil a safety function can compro mise the safe operation of your heating system Replace faulty components only with original Viessmann spare parts Ancillary components spare and wearing parts Please note Spare and wearing parts which have not bee...

Page 4: ...n and maintenance 24 Further details regarding the individual steps 26 Code 1 Calling up coding level 1 66 General 67 Select boiler 69 DHW 70 Solar 70 Heating circuit 1 heating circuit 2 heating circuit 3 71 Code 2 Calling up coding level 2 76 General 76 Select boiler 84 DHW 86 Solar 88 Heating circuit 1 heating circuit 2 heating circuit 3 91 Diagnosis and service scans Calling up the service menu...

Page 5: ...Electronic combustion controller 143 Designs Internal connection diagram 145 External connection diagram 146 Connection diagram solar control module 148 Parts lists 149 Commissioning service reports 159 Specification 160 Certificates Declaration of conformity 161 Manufacturer s certificate according to the 1st BImSchV Germany 162 Keyword index 163 Index Index cont 5412 755 GB ...

Page 6: ... handling Installation instructions provided Please note To prevent equipment damage never set the boiler down on its front or side panels or apply loads to these areas Installation Required room height at least 2100 mm The boiler weight is 161 kg 19 kW to 165 kg 26 kW dry Preparing the boiler for installation Use a connection set available as an accessory to make the connection on the gas and wat...

Page 7: ...a 50 595 50 600 C F D A B E G H A Solar return R B Heating flow R C DHW R D Gas connection R E DHW circulation R separate accessory F Cold water R G Heating return R H Solar flow R K Condensate drain to the back into the wall L Side condensate drain M Cable entry area N DHW safety valve drain Preparing for installation Preparing for installation cont 5412 755 GB Installation ...

Page 8: ...to 19 kW 6 5 to 26 kW a mm 200 224 Note The adjustable feet give all height meas urements a tolerance of 15 mm 1 Prepare the heating water connec tions Flush the heating system thor oughly Note Should an additional diaphragm expansion vessel be required on site connect that vessel into the heating return Preparing for installation Preparing for installation cont 5412 755 GB ...

Page 9: ...aperture L see page 6 Route condensate hose with a U bend and connect to on site drain line or siphon Discharge pipes from expansion valves safety valve should not be connected directly to a drain and should pass through a visi ble tundish with a AUK3 air gap and be located adjacent to the device 5 Prepare the gas connection accord ing to TRGI or TRF or all local regu lations 6 Prepare the electri...

Page 10: ...w off line outlet D Shut off valve E Flow regulating valve installation rec ommended F Pressure gauge connector G Non return valve H Drain K Cold water L Drinking water filter M Pressure reducer to Water Fittings Reg ulations 1999 N Non return valve pipe separator O Cold water connection at connection set accessory Preparing for installation Preparing for installation cont 5412 755 GB ...

Page 11: ...11 Assembling the boiler 9 8 7 6 5 1 3 2x 4 2 Installation sequence Installing the boiler 5412 755 GB Installation ...

Page 12: ... C DHW circulation R separate accessory D Cold water R E Heating return R Fitting the drain outlet and drain line to the T P valve Separate installation instructions DHW circulation connection DHW circulation connection with DHW circulation pump connection set accessory Separate installation instructions Installation sequence Installing the boiler cont 5412 755 GB ...

Page 13: ...e as an accessory is installed in the solar return Separate installation instructions The solar safety valve can be fitted in the boiler Set the pressure gauge for the solar circuit on site Note Route the blow off pipe for the safety valve on the solar side into a suitable and adequately sized drip container A drip container 2 5 litres to be fitted in the boiler is available as an accessory Instal...

Page 14: ... in rooms below ground level 1 Fix gas shut off valve to gas connec tion A 2 Carry out a tightness test Note For the tightness test use only suita ble and approved leak detecting agents EN 14291 and devices Leak detecting agents with unsuita ble contents e g nitrides sulphides can lead to material damage Remove residues of the leak detect ing agent after testing Installation sequence Installing th...

Page 15: ...ply pipe undo the fitting 3 Vent the gas line For conversion to a different gas type see page 32 Flue gas connection Connect the balanced flue The flue ter minals have to be installed as described in accordance with the Building Regula tions Part J and BS 5440 Flue gas system installation instructions Opening the control unit casing 1 3 2 2x Installation sequence Installing the boiler cont 5412 75...

Page 16: ...eparate 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 Installation sequence Opening the control unit casing cont 5412 755 GB ...

Page 17: ...ontrol module connected in the delivered condi tion C External safety solenoid valve LPG D Cylinder primary pump Plug 230 V sA Cylinder primary pump D fitted and connected fÖ Power supply Remove any existing individual cores Danger Incorrect core termination can cause severe injuries and damage to the equip ment Installation sequence Electrical connections cont 5412 755 GB Installation ...

Page 18: ...iler is installed outside wet areas the power supply for accessories can be connected directly to the control unit 230 V 50 Hz The con nection is switched by the system ON OFF switch Note If the total system current exceeds 6 A connect one or more extensions via a mains isolator directly to the mains supply see page 19 Low voltage plug X3 Outside temperature sensor Installation North or north west...

Page 19: ...to the actuators con nected e g circulation pumps that is higher than the safety level of the acces sory only use the output concerned to control an on site relay Accessories Internal fuse protection Extension kit for one heating circuit with mixer 2 A Extension AM1 4 A Extension EA1 2 A Solar control module SM1 2 A Connecting the collector temperature sensor Note Solar control module A is attache...

Page 20: ... to terminal box B of solar control module A On site extension cable 2 core cross section 1 5 mm2 Note The cylinder temperature sensor for solar heating is delivered fitted and connected Installation sequence Electrical connections cont 5412 755 GB ...

Page 21: ...hese cables are not exceeded A Low voltage connections B 230 V connections C Internal extension D Main PCB E Communication module accesso ries F Cable grommet for power cable Remove the existing cable grommet when using larger cross sections up to 7 14 mm Secure the cable with cable grommet F black integrated into the casing base Installation sequence Electrical connections cont 5412 755 GB Instal...

Page 22: ... programming unit packed sepa rately into the control unit support Note The programming unit can also be used in a wall mounting base accessory near the boiler Installation sequence Closing the control unit casing 5412 755 GB ...

Page 23: ...23 Wall mounting base installation instructions Installation sequence Closing the control unit casing cont 5412 755 GB Installation ...

Page 24: ...e and DHW side for leaks 11 Naming the heating circuits 31 12 Checking the gas type 31 13 Gas type conversion only for operation with LPG 32 14 Function sequence and possible faults 32 15 Checking the static and supply pressure 34 16 Setting the maximum output 36 17 Checking the balanced flue system tightness annular gap check 37 18 Removing the burner 38 19 Checking the burner gasket and burner g...

Page 25: ...ssel and system pressure 49 31 Checking the function of safety valves 32 Checking electrical connections are firmly seated 33 Checking gas equipment for tightness at operating pressure 49 34 Checking the combustion quality 50 35 Checking the external LPG safety valve if installed 36 Matching the control unit to the heating system 51 37 Adjusting the heating curves 58 38 Connecting the control unit...

Page 26: ...th a small softening system for heating water see Vitoset pricelist An antifreeze additive suitable for heating systems can be added to the fill water Shown with connection set for finished walls accessory 1 Check the pre charge pressure of the diaphragm expansion vessel 2 Close the gas shut off valve 3 Fill heating system via boiler drain fill valve A in the heating return depending on connection...

Page 27: ...Note For function and details of the fill pro gram see page 137 5 Close boiler drain fill valve A Activating the filling function 1 Press OK and simultaneously for approx 4 s 2 Service functions 3 Filling 4 Ending filling function Press OK or Changing the language if required Note At the commissioning stage the display is in German default setting Extended menu 1 å 2 Settings 3 Language Sprache Ce...

Page 28: ... hose on air vent valve B with a drain 4 Open air vent valve B and fill valve C in the heating return and vent using mains pressure flush until no more air noise can be heard 5 Close air vent valve B and fill valve C in the heating return and open the shut off valves on the heating water side Venting the heating system 1 Close the gas shut off valve and switch the control unit ON 2 Activate ventin...

Page 29: ...erminating venting program Press OK or ä Filling siphon with water A B C 1 Pivot control unit forward 2 Pull retaining clip A off 3 Pull filler pipe B upwards 4 Pull off trap C downwards 5 Fill siphon with water and reassem ble 6 Refit cover panel 7 Secure control unit back in operating position Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Se...

Page 30: ...r LS Minimum system pressure 1 7 bar Permiss operating pressure 6 bar Please note To prevent equipment dam age use only Tyfocor LS Never fill with water 3 Close ball valve of fill valve A 4 Open the air vent valve at the solar collector 5 Start solar circuit pump via a relay test see page 101 6 Let the solar circuit pump run until the solar circuit is fully vented At a sys tem pressure below 1 7 b...

Page 31: ...ptimum combustion in accordance with the prevailing gas quality Consequently for natural gas there is no adjustment required across the entire Wobbe index range The boiler can be operated in the Wobbe index range 9 5 to 15 2 kWh m3 34 2 to 54 7 MJ m3 Convert the burner for operation with LPG see Gas type conversion on page 32 1 Determine the gas type and Wobbe index by asking your local gas supply...

Page 32: ... End service functions 4 Open the gas shut off valve 5 Affix label G31 supplied with the technical documentation adjacent to the type plate on the cover panel Function sequence and possible faults Display Measures Control unit issues a heat demand no Increase set value and ensure heat is drawn off yes Fan starts no After approx 51 s fault F9 Check the fan fan connecting cables power at the fan and...

Page 33: ...isation current builds Symbol A no Fault EE Check the ionisa tion electrode adjustment and the gas line for air locks yes Burner in opera tion no Stops below the set boiler water temperature and restarts immedi ately Check the flue gas system for tight ness flue gas recirculation check the gas flow pressure Commissioning inspection maintenance Further details regarding the individual steps cont 54...

Page 34: ...equired Press reset button R For further details regarding faults see page 103 Checking the static and supply pressure Danger CO build up as a result of an incorrect burner setup can have serious health implications Carry out a CO test prior to and after work on gas equipment Operation with LPG Flush the LPG tank twice during commissioning replacement Vent the tank and gas supply lines thoroughly ...

Page 35: ...e burner 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 7 Record the actual values in the serv ice report on page 159 Take the action shown in the follow ing table 8 Shut down the boiler close the gas shut off valve remove the pressure gauge and close the screw in test n...

Page 36: ...mbar for LPG Notify your gas supply utility or LPG supplier Setting the maximum output You can limit the maximum output for heating operation The limit is set via the modulation range The max adjustable output is limited upwards by the boiler coding card 1 Press OK and å simultaneously for approx 4 s 2 Service functions 3 Max output 4 Change Select Yes A value flashes on the display e g 85 In the ...

Page 37: ...ss test during the commissioning of your system For this it would be sufficient to check the CO2 or O2 concentration in the combustion air at the annular gap of the balanced flue pipe The flue pipe is deemed to be gas tight if the CO2 concentration in the combus tion air is no higher than 0 2 or the O2 concentration is at least 20 6 If actual CO2 values are higher or O2 val ues are lower then pres...

Page 38: ...h OFF the main power supply and the ON OFF switch at the con trol unit 2 Close the gas shut off valve and safe guard against reopening Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 39: ...G and remove the burner Please note Prevent damage to the wire gauze Never rest the burner on the gauze assembly Checking the burner gasket and burner gauze assembly Check burner gasket A and burner gauze assembly E for damage replace if required C A D E 3x F B Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 40: ... electrodes B Ionisation electrode 1 Check the electrodes for wear and contamination 2 Clean the electrodes with a small brush not with a wire brush or sand paper 3 Check the electrode gaps If the gaps are not as specified or the electrodes are damaged replace and align the electrodes together with new gas kets Tighten the electrode fixing screws with 4 5 Nm torque Cleaning the heat exchanger and ...

Page 41: ... 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 Fit the gas supply pipe with a new gasket 6 Check the gas connections for tight ness Danger Escaping gas leads to a risk of explosion Check all fittings for gas tight ness 7 Connect the electrical cables leads to each corresponding component Commissioning...

Page 42: ...reely at the siphon 2 Pull retaining clip A off 3 Pull filler pipe B upwards 4 Pull off trap C downwards 5 Pull the condensate hose from trap C 6 Clean the siphon 7 Fill siphon with water and reassem ble Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 43: ...he anode earth current with an anode tester Note We recommend that the magnesium anode function is checked annually This func tion test can be carried out without interrupting operation by measuring the earth current with an anode tester Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 44: ...series between tab C and earth cable B The anode is OK if the indicated current is 0 3 mA Visually inspect the anode if the current measures 0 3 mA or if there is no current at all see page 47 Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 45: ...rn drain valve from lever position A to lever position B or C as required Lever position B Drain heating system excluding cylinder via the cold water connection Lever position C Drain heating system and cylinder via the DHW connection Cold water connection remains filled Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 46: ...equirements A B E C D 1 Drain the primary store 2 Remove flange lid A 3 Remove T P valve B 4 Undo eight screws C and remove flange lid D 5 Dispose of gasket E 6 Disconnect the primary store from the pipework to prevent contamination from entering the pipe system Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 47: ...pressure cleaner Please note Never use hydrochloric acid based cleaning agents 9 Thoroughly flush the primary store after cleaning Checking and replacing the magnesium anode if required Check the magnesium anode If the anode is found to have degraded to 10 to 15 mm Ø we recommend replacing the magnesium anode Commissioning inspection maintenance Further details regarding the individual steps cont ...

Page 48: ...asket A underneath flange lid B 3 Fit flange lid B and tighten eight screws D with up to 25 Nm torque 4 Push earth cable C onto the tab 5 Fit T P valve E 6 Fit cover F 7 Fill the primary store with drinking water Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 49: ...stem is 0 1 to 0 2 bar higher than the inlet pressure of the diaphragm expansion vessel Permiss operating pressure 3 bar Checking gas equipment for tightness at operating pressure Danger Escaping gas leads to a risk of explosion Check gas equipment for tight ness Note For the tightness test use only suitable and approved leak detecting agents EN 14291 and devices Leak detecting agents with unsuita...

Page 50: ...2 values lie outside their respective ranges proceed with the following steps Checking the balanced flue system for tightness see page 37 Checking the ionisation electrode and connecting cable see page 40 Note During commissioning the combustion controller carries out an automatic calibration Only test the emissions approx 30 s after the burner has started 1 Connect a flue gas analyser at flue gas...

Page 51: ...n firm with OK 4 Select the upper output Select Full load ON and confirm with OK Matching the control unit to the heating system Subject to the equipment level the control unit must be matched to the system Var ious system components are recognised automatically by the control unit and the relevant codes are adjusted automatically For the selection of an appropriate scheme see the following diagra...

Page 52: ...er A1 wP Solar collectors wQ Collector temperature sensor Function system components Code Adjust Delivered con dition Operation with LPG 82 1 82 0 System with DHW circulation pump DHW circulation pump connection at extension AM1 terminal A2 34 0 Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 53: ...cuit pump M2 7 Extension kit for one heating circuit with mixer M2 8 Low loss header 9 Flow temperature sensor low loss header wP Solar collectors wQ Collector temperature sensor Function system components Code Adjust Delivered con dition Operation with LPG 82 1 82 0 System only with one heating circuit with mixer with extension kit for mixer with DHW heating 00 4 00 6 System with DHW circulation ...

Page 54: ... 8 2 wP wQ 1 Vitodens 242 F 2 Outside temperature sensor 3 Heating circuit without mixer A1 4 Heating circuit with mixer M2 5 Temperature limiter for limiting the maximum temperature of underfloor heating systems 6 Flow temperature sensor M2 7 Heating circuit pump M2 8 Extension kit for one heating circuit with mixer M2 wP Solar collectors wQ Collector temperature sensor Commissioning inspection m...

Page 55: ...de Adjust Delivered con dition Operation with LPG 82 1 82 0 System only with one heating circuit with mixer with extension kit for mixer with DHW heating 00 4 00 6 System with DHW circulation pump DHW circulation pump connection at extension AM1 terminal A2 34 0 Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 56: ...erfloor heating systems 6 Flow temperature sensor M2 7 Heating circuit pump M2 8 Extension kit for one heating circuit with mixer M2 9 Heat exchanger for system separa tion wP Solar collectors wQ Collector temperature sensor Function system components Code Adjust Delivered con dition Operation with LPG 82 1 82 0 System only with one heating circuit with mixer with extension kit for mixer with DHW ...

Page 57: ...qT 8 7 6 5 9 qP qQ qW qE qR 2 wP wQ 4 3 1 Vitodens 242 F 2 Outside temperature sensor 3 Heating circuit without mixer A1 heating circuit 1 4 Heating circuit pump A1 5 Heating circuit with mixer M2 heat ing circuit 2 6 Flow temperature sensor M2 7 Heating circuit pump M2 8 Extension kit for one heating circuit with mixer M2 9 Heating circuit with mixer M3 heat ing circuit 3 qP Temperature limiter f...

Page 58: ...sion AM1 terminal A2 34 0 System with low loss header 04 0 04 1 Adjusting the heating curves The heating curves illustrate the relation ship between the outside temperature and the boiler water or flow tempera ture To put it simply the lower the outside temperature the higher the boiler water or flow temperature The room temperature again depends on the boiler water or the flow tempera ture Note I...

Page 59: ... Set room temperature in C 35 30 25 20 15 10 5 0 4 0 6 0 8 1 0 1 2 1 4 30 25 1 8 1 6 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 Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 60: ... according to the system requirements Adjusting the set room temperature Standard room temperature 90 20 26 20 A C D E B Example 1 Adjustment of the standard room temperature from 20 to 26 C A Boiler water temperature or flow temperature in C B Outside temperature in C C Set room temperature in C D Heating circuit pump OFF E Heating circuit pump ON Adjustment of the standard room temperature Opera...

Page 61: ...t to the LON The LON communication module accessories must be plugged in Installation instructions LON communication module Note The data transfer via LON can take sev eral minutes Single boiler system with Vitotronic 200 H and Vitocom 300 example Set the LON subscriber numbers and further functions via code 2 see the fol lowing table Note In the same LON system the same num ber cannot be allocate...

Page 62: ...ture Set code 97 1 The control unit receives the outside temperature Set code 97 1 LON subscriber fault monitoring Code 9C 20 LON subscriber fault monitoring Code 9C 20 LON subscriber fault monitoring Code 9C 20 Carrying out a LON subscriber check Communication with the system devices connected to the fault manager is tested with a subscriber check Preconditions The control unit must be programmed...

Page 63: ...Scanning and resetting the Service display After the limit values specified in coding address 21 and 23 have been reached Service and appear on the programming unit display Acknowledging and resetting service Press OK to acknowledge a service message Note An acknowledged service message that was not reset reappears the following Monday After a service has been carried out reset service 1 Press OK ...

Page 64: ...64 Fitting the front panels 4 2 2x 1 5 3 Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB ...

Page 65: ... system installer must hand the oper ating instructions to the system user and instruct him her in the operation of the system Commissioning inspection maintenance Further details regarding the individual steps cont 5412 755 GB Service ...

Page 66: ...tions the selected des ignation and HC1 HC2 or HC3 appear instead 1 Press OK and å simultaneously for approx 4 s 2 Coding level 1 3 Select group of required coding address General Boiler DHW Solar Heating circuit 1 2 3 All cod or solar In this group all coding addresses from coding level 1 except the cod ing addresses from the Solar group are displayed in ascending order 4 Select coding address 5 ...

Page 67: ...mixer M2 heating circuit 2 with DHW heating 6 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 8 5 One heating circuit with mixer M2 heating circuit 2 and one heating circuit with mixer M3 heating circuit 3 with DHW heating 10 5 One heating circuit without mixer A1 heating circuit 1 on...

Page 68: ...mand the internal circu lation pump will only be started when the burner is operational Subscriber no 77 1 LON subscriber number 77 2 to 77 99 LON subscriber number adjustable from 1 to 99 1 4 Boiler 5 Cascade 10 98 Vitotronic 200 H 99 Vitocom Note Allocate each number only once Detached house apartment building 7F 1 Detached house 7F 0 Apartment building Separate adjustment of holiday program and...

Page 69: ...val hours run selected 21 1 to 21 100 The number of hours run before the burner should be serviced is adjustable from 100 to 10 000 h One adjusting step 100 h Service interval in months 23 0 No time interval for burner service 23 1 to 23 24 Interval adjustable from 1 to 24 months Service status 24 0 No Service display 24 1 Service display the address is automatically set and must be manually reset...

Page 70: ...from once per hour for 5 min up to 6 times per hour for 5 min during the time program 73 7 Constantly ON Solar Coding Coding in the delivered condition Possible change Speed control collector pump 02 1 Solar circuit pump multi stage is speed control led with wave pack con trol 02 0 Solar circuit pump multi stage is not speed control led 02 2 Do not adjust Cylinder maximum temperature 08 60 The sol...

Page 71: ...n 0F 1 to 0F 255 Flow rate in the collector circuit adjustable from 0 1 to 25 5 l min Heating circuit 1 heating circuit 2 heating circuit 3 Coding Coding in the delivered condition Possible change Summer eco function outside temperature A5 5 With heating circuit pump logic function economy circuit Heating circuit pump OFF when the outside temperature AT is 1 K higher than the set room temperature ...

Page 72: ...d 35 C plus 1 C The base value is the adjusted outside tempera ture This value is based on the actual outside temper ature and a time constant that takes the cooling down of an average building into consideration Mixer eco function A7 0 Without mixer economy function only for heating circuits with mixer A7 1 With mixer economy func tion extended heating cir cuit pump logic Heating circuit pump als...

Page 73: ...mode weather compensated b0 3 Heating mode reduced mode with room tempera ture hook up Summer eco function room temperature b5 0 With remote control no room temperature dependent heating circuit pump logic function change code only for heating circuit with mixer b5 1 to b5 8 Heating circuit pump logic function see the following table Parameter address b5 With heating circuit pump logic function He...

Page 74: ...ra ture or Standby mode d5 1 The external heating pro gram changeover changes to Constant operation with standard room tempera ture independent of cod ing address 3A 3b and 3C Ext heating program changeover to heating circuit d8 0 No heating program changeover via extension EA1 d8 1 Heating program change over via input DE1 at exten sion EA1 d8 2 Heating program change over via input DE2 at exten ...

Page 75: ...s ing the set room tempera ture to the value selected for standard mode adjusta ble from 10 to 60 C Increase set flow temperature FA 20 Raising the set boiler water temperature or the set flow temperature when changing from operation with reduced room temperature to operation with standard room temperature by 20 See example on page 141 FA 0 to FA 50 Temperature rise adjusta ble from 0 to 50 Durati...

Page 76: ...aneously for approx 4 s 2 Press OK and ä simultaneously for approx 4 s 3 Coding level 2 4 Select group of required coding address General Boiler DHW Solar Heating circuit 1 2 3 All cod or solar In this group all coding addresses except the coding addresses from the Solar group are displayed in ascending order 5 Select coding address 6 Select value according to the follow ing tables and confirm wit...

Page 77: ...de is adjusted automatically Coding in the delivered condition Possible change 11 9 No access to the coding addresses for the com bustion controller param eters 11 9 Access open to the coding addresses for the combus tion controller parameters 32 0 Without extension AM1 32 1 With extension AM1 auto matic recognition 33 1 Function output A1 at extension AM1 Heating circuit pump 33 0 Function output...

Page 78: ...n pump Coding address 3F 3A 3 Function input DE1 Exter nal blocking Function internal circula tion pump Coding address 3E 3A 4 Function input DE1 Exter nal blocking with fault mes sage input Function internal circula tion pump Coding address 3E 3A 5 Function input DE1 Fault message input 3A 6 Function input DE1 Brief operation DHW circulation pump pushbutton func tion DHW circulation pump run time...

Page 79: ...mp Coding address 3F 3b 3 Function input DE2 Exter nal blocking Function internal circula tion pump Coding address 3E 3b 4 Function input DE2 Exter nal blocking with fault mes sage input Function internal circula tion pump Coding address 3E 3b 5 Function input DE2 Fault message input 3b 6 Function input DE2 Brief operation DHW circulation pump pushbutton func tion DHW circulation pump run time adj...

Page 80: ...lt mes sage input Function internal circula tion pump Coding address 3E 3C 5 Function input DE3 Fault message input 3C 6 Function input DE3 Brief operation DHW circulation pump pushbutton func tion DHW circulation pump run time adjustment Coding address 3d 3d 5 DHW circulation pump runtime for brief opera tion 5 min 3d 1 to 3d 60 DHW circulation pump run time adjustable from 1 to 60 min 3E 0 Inter...

Page 81: ...ith heating water buffer cylinder When there is a heat demand the internal circu lation pump will only be started when the burner is operational 52 0 Without flow temperature sensor for low loss header 52 1 With flow temperature sen sor for low loss header automatic recognition 54 3 Do not adjust 6E 50 Do not adjust 76 0 Without LON communi cation module only for weather compensated control units ...

Page 82: ...ive for at least 30 s 80 0 Immediate fault message 80 2 to 80 199 Minimum fault duration until fault message occurs adjustable from 10 s to 995 s 1 step 5 s 81 1 Automatic summer win ter time changeover 81 0 Manual summer winter time changeover 81 2 Use of the radio clock receiver automatic recog nition 81 3 With LON communication module The control unit receives the time 82 0 Operation with natur...

Page 83: ...97 0 With LON communication module The outside tem perature of the sensor connected to the control unit is utilised internally only for weather com pensated control units 97 1 The control unit receives the outside temperature 97 2 The control unit transmits the outside temperature to the Vitotronic 200 H 98 1 Viessmann system num ber in conjunction with monitoring of several sys tems via Vitocom 3...

Page 84: ...l units 9F 0 to 9F 40 Differential temperature adjustable from 0 to 40 K Select boiler Coding Coding in the delivered condition Possible change 04 1 Minimum burner pause subject to the boiler load specified by boiler cod ing card 04 0 Minimum burner pause set permanently specified by boiler coding card Adjust for systems with low loss header 06 Maximum limit of the boiler water temperature specifi...

Page 85: ... 24 1 Service display the address is automatically set and must be manually reset after a service has been carried out 28 0 No burner interval igni tion 28 1 to 28 24 Time interval adjustable from 1 h to 24 h The burner is force started once every 30 s only when operating with LPG 2E 0 Never adjust 2F 0 Venting program fill pro gram disabled 2F 1 Venting program enabled 2F 2 Fill program enabled 3...

Page 86: ... pump for cyl inder heating stays in control mode at signal External blocking 5E 1 Circulation pump for cylin der heating stops at signal External blocking 5E 2 Circulation pump for cylin der heating starts at signal External blocking 5F 0 Circulation pump for cyl inder heating stays in control mode at signal External demand 5F 1 Circulation pump for cylin der heating stops at signal External dema...

Page 87: ...ting in speci fied by the boiler coding card 6F 0 to 6F 100 Max output for DHW heat ing adjustable from min output to 100 71 0 DHW circulation pump ON according to time program 71 1 OFF during DHW heating to the first set value 71 2 ON during DHW heating to the first set value 72 0 DHW circulation pump ON according to time program 72 1 OFF during DHW heating to the second set value 72 2 ON during ...

Page 88: ...is speed control led with wave pack con trol 02 0 Solar circuit pump multi stage is not speed control led 02 2 Do not adjust 03 10 The temperature differen tial between the collector temperature and actual cylinder temperature is regulated to 10 K 03 5 to 03 20 The differential tempera ture control between col lector temperature and actual cylinder tempera ture can be adjusted from 5 to 20 K 04 4 ...

Page 89: ...he system components and heat transfer medium the speed of the solar circuit pump is reduced when the differential between the actual cylinder tem perature and set cylinder temperature is less than 5 K 0A 0 to 0A 40 The differential between the set cylinder tempera ture and the start point for reducing the stagnation time can be adjusted from 0 to 40 K 0b 0 Collector frost protection function swit...

Page 90: ...cod ing address 11 10 1 Target temperature control switched on 11 50 Set cylinder temperature for solar 50 C Target temperature control switched on code 10 1 Temperature at which the solar heated water in the DHW cylinder is to be stratified 11 10 to 11 90 The set cylinder tempera ture for solar can be adjus ted from 10 to 90 C 12 20 Minimum collector tem perature 20 C The solar circuit pump is no...

Page 91: ...de temperature above 3 C Heating cir cuit pump OFF A3 9 to A3 15 Heating circuit pump ON OFF see the following table Please note If a value below 1 C is selected there is a risk that pipes outside the thermal envelope of the house could freeze up The standby mode in particular should be taken into consideration e g dur ing holidays Parameter Heating circuit pump Address A3 ON OFF 9 10 C 8 C 8 9 C ...

Page 92: ...outside temperature AT is 1 K higher than the set room temperature RTset AT RTset 1 K A5 0 Without heating circuit pump logic function A5 1 to A5 15 With heating circuit pump logic function Heating cir cuit pump OFF see the following table Parameter address A5 With heating circuit pump logic function Heating cir cuit pump OFF 1 AT RTset 5 K 2 AT RTset 4 K 3 AT RTset 3 K 4 AT RTset 2 K 5 AT RTset 1...

Page 93: ...A7 1 With mixer economy func tion extended heating cir cuit pump logic Heating circuit pump also OFF If a mixer has been attempting to close for longer than 20 min Heating circuit pump ON If the mixer changes to control function If there is a risk of frost A8 1 Heating circuit with mixer creates a demand for the internal circulation pump A8 0 Heating circuit with mixer creates no demand for the in...

Page 94: ...b2 0 Without room influence b2 1 to b2 64 Room influence factor adjustable from 1 to 64 b5 0 With remote control no room temperature dependent heating circuit pump logic function change code only for heating circuit with mixer b5 1 to b5 8 Heating circuit pump logic function see the following table Parameter address b5 With heating circuit pump logic function Heating circuit pump OFF Heating circu...

Page 95: ...n with reduced room tempera ture or Standby mode d5 1 The external heating pro gram changeover changes to Constant operation with standard room tempera ture independent of cod ing address 3A 3b and 3C d6 0 Heating circuit pump stays in control mode at signal External block ing d6 1 Heating circuit pump stops at signal External block ing subject to coding addresses 3A 3b and 3C d6 2 Heating circuit...

Page 96: ...uit pump F1 0 Screed function disabled F1 1 to F1 6 Screed drying function adjustable in accordance with 6 optional tempera ture time profiles see page 137 F1 15 Constant flow temperature 20 C F2 8 Time limit for party mode or external heating pro gram changeover via key 8 h 1 F2 0 No time limit for party mode 1 F2 1 to F2 12 Time limit adjustable from 1 to 12 h 1 F8 5 Temperature limit for ter mi...

Page 97: ...r water temperature or the set flow temperature when changing from operation with reduced room temperature to operation with standard room temperature by 20 See example on page 141 FA 0 to FA 50 Temperature rise adjusta ble from 0 to 50 Fb 30 Duration for raising the set boiler water tempera ture or the set flow tem perature see coding address FA 60 min See example on page 141 Fb 0 to Fb 150 Durat...

Page 98: ...osis Scanning 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 scanned if the components are installed in the system For further information on operating data see chapter Brief scan Note appears on the display if a sensor that has been scanned is faulty Calling up operating data...

Page 99: ...ple 1 Press OK and å simultaneously for approx 4 s 2 Diagnosis 3 Brief scan 4 Press OK The display shows 9 lines with 6 fields each Diagnose Kurzabfrage 2 1 3 4 Wählen mit Ø 0 0 0 1 F 0 0 0 0 0 0 0 A 0 0 0 0 0 0 1 2 0 0 0 For an explanation of the relevant values in the individual lines and fields see the following table Line brief scan Field 1 2 3 4 5 6 1 Software version Control unit Equipment v...

Page 100: ...k digit Max output Details in Heating circuit A1 without mixer Heating circuit M2 with mixer Heating circuit M3 with mixer 7 Remote control 0 w o 1 Vitotrol 200A 2 Vitotrol 300A or Vitohome Software version Remote control 0 no remote control Remote control 0 w o 1 Vitotrol 200A 2 Vitotrol 300A or Vitohome Software version Remote control 0 no remote control Remote control 0 w o 1 Vitotrol 200A 2 Vi...

Page 101: ...aneously for approx 4 s 2 Actuator test The following relay outputs can be controlled subject to system design Display Explanation Base load start Burner operates at minimum output internal pump starts Full load start Burner operates at maximum output internal pump starts Outp internal start Internal output sÖ internal pump enabled Start valve heating Diverter valve set to heating mode Start valve...

Page 102: ...AM1 output 1 start Output A1 at extension AM1 enabled AM1 output 2 start Output A2 at extension AM1 enabled EA1 output 1 start Contacts P S at plug aBJ for extension EA1 closed Solar circuit pump start Solar circuit pump sF output at solar control module SM1 enabled Solar circ pmp min start Solar circuit pump output at solar control module SM1 switched to minimum speed Solar circ pmp max start Sol...

Page 103: ...t menu If a fault messaging facility is connected it will be switched off If an acknowledged fault is not remedied the fault message will be re displayed the following day and the fault message facility restarted Calling up acknowledged faults Select Fault in the standard menu The current faults will be displayed in a list Calling up fault codes from the fault memory fault history The 10 most rece...

Page 104: ...r sensor see page 117 30 Burner blocked Short circuit boiler water temperature sensor Check the boiler water temperature sensor see page 117 38 Burner blocked Lead break boiler water temperature sensor Check the boiler water temperature sensor see page 117 40 Mixer closes Short circuit flow temperature sen sor heating circuit 2 with mixer Check flow temperature sensor 44 Mixer closes Short circuit...

Page 105: ...control module Check sensor to the solar control module 9A No solar DHW heat ing Lead break collec tor temperature sensor connection to the solar control module Check sensor to the solar control module 9C No solar DHW heat ing Lead break cylin der temperature sensor connection to the solar control module Check sensor to the solar control module 9E Control mode No flow rate in the collector circuit...

Page 106: ... message continues to be displayed A9 The burner operates at its lower output if a heating circuit with mixer is connected The burner is blocked if only one heating cir cuit without mixer is connected Internal circulation pump blocked Check the circulation pump b0 Burner blocked Short circuit flue gas temperature sensor Check the flue gas tem perature sensor b1 Control mode as per delivered condit...

Page 107: ...ress A0 and remote control settings see page 143 bd Control mode without remote control Communication error remote con trol Vitotrol heating circuit 2 with mixer Check connections lead coding address A0 and remote control settings see page 143 bE Control mode without remote control Communication error remote con trol Vitotrol heating circuit 3 with mixer Check connections lead coding address A0 an...

Page 108: ...luence Short circuit room temperature sen sor heating circuit 1 without mixer Check room temperature sensor heating circuit 1 db Control mode without room influence Short circuit room temperature sen sor heating circuit 2 with mixer Check room temperature sensor heating circuit 2 dC Control mode without room influence Short circuit room temperature sen sor heating circuit 3 with mixer Check room t...

Page 109: ... for the combustion air Press reset button R E3 Burner in a fault state Heat transfer too low during calibra tion Temperature lim iter caused shut down Ensure adequate heat transfer Press reset button R E4 Burner blocked Fault supply volt age 24 V Replace the control unit E5 Burner blocked Fault flame ampli fier Replace the control unit E6 Burner blocked System pressure too low Top up with water E...

Page 110: ...e the permis sible range during calibration devia tion from previous level too great Check flue system rem edy flue gas recirculation if required In open flue mode pre vent very dusty conditions for the combustion air Press reset button R Following several unsuc cessful reset attempts replace boiler coding card and press reset button R Eb Burner in a fault state Repeated flame loss during calibra ...

Page 111: ...nisation elec trode and connecting cable Checking ignition Connecting leads to ignition module and ignition electrode Distance to ignition electrode and contami nation see page 40 Check condensate drain Press reset button R EF Burner in a fault state The flame is lost immediately after it has built during the safety time Check gas supply gas pressure and gas flow lim iter Check flue gas ventilatio...

Page 112: ...sation elec trode and connecting cable Press reset button R F7 Burner blocked Short circuit or lead break water pres sure sensor Check the water pressure sensor and the connect ing cable F8 Burner in a fault state The fuel valve closes too late Check the gas train Check both control paths Press reset button R F9 Burner in a fault state Fan speed too low during burner start Check the fan the fan co...

Page 113: ...ress reset button R Replace control unit if the fault persists FE Burner blocked or in a fault state Boiler coding card or main PCB faulty Press reset button R Replace boiler coding card or control unit if the fault persists FF Burner blocked or in a fault state Internal fault or reset button R blocked Start the appliance again Replace the control unit if the appliance will not restart Troubleshoo...

Page 114: ...114 Putting control unit in maintenance position If required for commissioning and serv icing the control unit can be put in a dif ferent position 4 3 1 2 Troubleshooting Repairs 5412 755 GB ...

Page 115: ... side A 1 Close the shut off valves on the heat ing water side 2 Route hose at drain valve A into a suitable container or drain outlet 3 Open drain valve A and drain the boiler as much as required Troubleshooting Repairs cont 5412 755 GB Service ...

Page 116: ...esistance 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 test on the sensor itself 4 Subject to result replace the lead or the outside temperature sensor Troubleshooting Repairs cont 5412 755 GB ...

Page 117: ...117 Checking the boiler water temperature sensor cylinder temper ature sensor or flow temperature sensor of the low loss header X3 5 A Troubleshooting Repairs cont 5412 755 GB Service ...

Page 118: ...r resistance and compare the actual values with the curve 10 1 10 30 50 70 90 110 Temperature in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ 3 Replace the sensor in case of severe deviation Danger The boiler water temperature sensor is immersed in the heating water risk of scald ing Drain the boiler on the heating water side before replacing the sensor Checking collector temperature sensor or cylind...

Page 119: ...onnect lead from terminal box B and measure its resistance 0 1 1 10 100 0 20 40 60 80 100 120 140 Temperature in C Resistance in kΩ A B 25 A Collector temperature sensor B Cylinder temperature sensor 2 Compare the sensor resistance with the curve 3 Replace the sensor in case of severe deviation Troubleshooting Repairs cont 5412 755 GB Service ...

Page 120: ...in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ 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 Drain the DHW side of the boiler before replacing the sensor Troubleshooting Repairs cont 5412 755 GB ...

Page 121: ...nterlock after the flue system has cooled down by pressing reset button R 1 Pull the leads from flue gas tempera ture sensor A 10 1 10 30 50 70 90 110 Temperature in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ 2 Check the sensor resistance and compare it with the curve 3 Replace the sensor in case of severe deviation Troubleshooting Repairs cont 5412 755 GB Service ...

Page 122: ...m the plate heat exchanger C A B 1 Shut off and drain the boiler on its heating water and DHW side 2 Release the side closures and pivot the control unit forward 3 Remove the siphon see page 29 4 Push insulating mat A upwards and remove 5 Undo two screws B and pull out plate heat exchanger C with insula tion to the front Troubleshooting Repairs cont 5412 755 GB ...

Page 123: ...et after a fault shutdown although the boiler water temperature is below approx 75 C check the following A 1 Pull the leads from temperature lim iter A 2 Check the continuity of the tempera ture limiter with a multimeter 3 Remove the faulty temperature lim iter 4 Coat the replacement temperature limiter with heat conducting paste and install it 5 After commissioning press reset but ton R on the co...

Page 124: ...cking the fuse F1 1 Switch OFF the power 2 Release the side closures and pivot the control unit down 3 Remove cover A 4 Check fuse F1 see connection and wiring diagram Troubleshooting Repairs cont 5412 755 GB ...

Page 125: ...of the extension kit defines the assignment to the relevant heating circuit Heating circuit Rotary selector S1 setting Heating circuit with mixer M2 heating cir cuit 2 2 2 3 4 5 6 1 0 9 87 Heating circuit with mixer M3 heating cir cuit 3 4 4 2 3 5 6 1 0 9 87 Checking the rotational direction of the mixer motor After being switched ON the boiler implements a self test During this the mixer is opene...

Page 126: ...tion of the mixer motor if required gS BU 1 Remove the upper casing cover of the extension kit Danger An electric shock can be life threatening Before opening the boiler dis connect from the mains volt age for example at the fuse or the main isolator 2 At plug gS swap the cores at termi nals and 3 Refit the casing cover Checking the Vitotronic 200 H accessories The Vitotronic 200 H is connected to...

Page 127: ...nd regu lates the burner accordingly The electronic temperature limiter inside the burner control unit limits the boiler water temperature Heating the DHW primary cylinder from cold The heating circuit pump is switched ON and the three way diverter valve will be changed over if the cylinder tempera ture sensor captures a temperature lower than the defaulted set tempera ture The cylinder primary pu...

Page 128: ... reached The DHW is controlled to the specified temperature via the cylinder temperature sensor The primary cylinder continues to be heated up after the draw off process has terminated until the set DHW tempera ture has been reached at the cylinder temperature sensor The cylinder primary pump and the three way diverter valve remain ON for a further 30 s DHW heating via solar collectors If a temper...

Page 129: ...ure value for the heat ing boost is adjustable in coding address 58 Internal extensions Internal extension H1 The internal extension H1 is integrated into the control unit casing The cylinder primary pump is connected to relay out put sK An external safety valve can be connec ted to gD Function description Control unit cont 5412 755 GB Service ...

Page 130: ...ion H2 is integrated into the control unit casing instead of the internal extension H1 The cylinder pri mary pump is connected to relay output sK An external extractor interlock can be connected to aBJ Function description Internal extensions cont 5412 755 GB ...

Page 131: ...ion AM1 A1 Circulation pump A2 Circulation pump fÖ Power supply terminals fÖA Power supply terminal for addi tional accessories aVG KM BUS Function description External extensions accessories 5412 755 GB Service ...

Page 132: ...on pump Allocating functions for outputs A1 and A2 Select the function for these outputs via the codes on the boiler control unit Output A1 Code 33 Output A2 Code 34 Function Code Output A1 Output A2 DHW circulation pump sK 33 0 34 0 delivered cond Heating circuit pump sÖ 33 1 delivered cond 34 1 Circulation pump for cylinder heating sA 33 2 34 2 Function description External extensions accessorie...

Page 133: ...tal input 3 0 10 V 0 10 V input fÖ Power supply terminals fÖA Power supply terminal for addi tional accessories aBJ Central fault message feed pump DHW circulation pump zero volt aVG KM BUS Function description External extensions accessories cont 5412 755 GB Service ...

Page 134: ... code d5 Set the duration of the changeover via code F2 Effect on the pumps of external block ing function The effect on the internal circulation pump is selected with code 3E The effect on the relevant heating circuit pump is selected with code d6 The effect on a circulation pump for cyl inder heating is selected with code 5E Effect on the pumps of the external demand function The effect on the i...

Page 135: ...ngeover function for the respective heating circuit via code d8 at the boiler control unit Heating program changeover Code Changeover via input DE1 d8 1 Changeover via input DE2 d8 2 Changeover via input DE3 d8 3 You can select which direction the heat ing program changeover takes in coding address d5 Heating program changeover Code Changeover towards Permanently reduced or Permanent standby mode ...

Page 136: ...3 inputs available at extension EA1 DE1 to DE3 The function is selected via the following codes External blocking Code Input DE1 3A 3 Input DE2 3b 3 Input DE3 3C 3 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 pump is selected with code 3E The effect on the relevant heating circuit pump is selected with code d6 Ex...

Page 137: ...iverter valve is set to its central position ena bling the system to be filled completely After switching ON the control unit the diverter valve no longer goes into its cen tral position Afterwards the diverter valve can be moved via the fill function into the central position see Filling the heating sys tem In this position the control unit can be switched OFF and the system can be filled complet...

Page 138: ...ax flow temperature achieved Operating conditions and outside tem perature during handover The various temperature profiles are adjustable via coding address F1 The function continues after power fail ure or after the control unit has been switched OFF Heating and DHW will be started after the screed drying func tion has been terminated or if code F1 0 is manually adjusted Temperature profile 1 EN...

Page 139: ... 20 10 1 5 10 15 20 25 30 Temperature profile 4 Code F1 4 Flow temperature C Days 50 40 30 20 10 1 5 10 15 20 25 30 Temperature profile 5 Code F1 5 Flow temperature C 1 5 10 15 20 25 30 Days 50 40 30 20 10 Function description Control functions cont 5412 755 GB Service ...

Page 140: ...ion with reduced room temperature the reduced set room tem perature can be automatically raised subject to the outside temperature The temperature is raised in accordance with the selected heating curve but no higher than the set standard room tempera ture The outside temperature limits for the start and end of the temperature raising can be adjusted via coding addresses F8 and F9 Function descrip...

Page 141: ...emperature Reducing the heat up time During the transition from operation with reduced room temperature to operation with standard room temperature the boiler water or flow temperature will be raised in accordance with the selected heating curve The boiler water or flow temperature can be automatically increased The value and duration of the additional increase of the set boiler water or flow temp...

Page 142: ... with standard room temperature B Set boiler water or flow temperature in accordance with the selected heating curve C Set boiler water or flow temperature in accordance with coding address FA 50 C 20 60 C D Duration of operation with raised set boiler water or flow temperature in accordance with coding address Fb 60 min Function description Control functions cont 5412 755 GB ...

Page 143: ...oller The electronic combustion controller uti lises the physical correlation between the level of the ionisation current and the air factor λ For all gas qualities the max imum ionisation current results with air factor 1 The ionisation signal is evaluated by the combustion controller and the air factor is adjusted to between λ 1 24 and 1 44 This range provides for an optimum com bustion quality ...

Page 144: ...timum combustion con trol the system regularly carries out an automatic self calibration also after a power failure shutdown For this the combustion is briefly regulated to max ionisation current equals air factor λ 1 The automatic calibration is carried out shortly after the burner start and lasts approx 5 s During calibration higher than normal CO emissions may occur briefly Function description...

Page 145: ...r Outlet temperature sensor aA Ionisation electrode aG Flue gas temperature sensor dÖ Stepper motor for diverter valve fJ Temperature limiter gF Ignition unit a Ö Fan motor a ÖA Fan motor control a Ö Modulation coil Designs Internal connection diagram 5412 755 GB Service ...

Page 146: ...146 A B A1 Main PCB A2 Power supply unit A3 Optolink A4 Burner control unit A5 Programming unit A6 Coding card Designs External connection diagram 5412 755 GB ...

Page 147: ...er sup ply Outside temperature sensor Flow temperature sensor low loss header Cylinder temperature sensor plug on the cable harness sÖ Internal circulation pump sA Cylinder primary pump dG Gas solenoid valve fÖ Power supply lH Power supply accessories and Vitotrol 100 a Ö Fan motor a ÖA Fan motor control aYA Gas pressure limiter aVG KM BUS Designs External connection diagram cont 5412 755 GB Servi...

Page 148: ...trical interfaces A KM BUS from the control unit B Power supply from the control unit Cylinder temperature sensor Collector temperature sensor sF Solar circuit pump fÖ Power supply aVG KM BUS Designs Connection diagram solar control module 5412 755 GB ...

Page 149: ... Flow pipe 033 Connecting pipe cold water cylin der 034 Heating water flow connecting pipe 035 Connection pipework heating water return 036 Connection pipework cold water 037 DHW connecting pipe 038 Heating water flow connecting pipe 039 Cold water connection 040 Heating water return connecting pipe 041 Connecting pipe central draw off 042 Solar return connecting pipe 043 Solar circuit pump connec...

Page 150: ...141 Thermal circuit breaker 142 Temperature sensor 143 Cylinder temperature sensor 145 Cylinder temperature sensor solar 150 T P valve connecting pipe 151 T P valve 160 Cylinder 162 Sleeve 164 Cylinder gasket 166 Anode flange with gasket 167 Flange insulation 171 Sleeve 172 Cover 173 Sensor retainer 174 Draw off connector sleeve 200 Side panel left 202 Side panel right 204 Top cover 205 Front pane...

Page 151: ... harness stepper motor 313 Mating plug set 314 Cable fixing 317 Collector temperature sensor 319 Adaptor lead for collector tempera ture sensor 320 Plug set LV 321 Plug set 230 V 322 KM BUS connecting cable aVG 323 Power cable fÖ 401 Operating instructions for weather compensated mode 402 Installation and service instructions A Type plate Parts lists Parts lists cont 5412 755 GB Service ...

Page 152: ...152 208 061 065 070 062 063 069 061 074 067 206 072 071 081 066 075 068 205 092 004 003 060 064 031 Parts lists Parts lists cont 5412 755 GB ...

Page 153: ...153 007 204 208 090 090 005 008 006 202 208 140 090 211 200 207 Parts lists Parts lists cont 5412 755 GB Service ...

Page 154: ...154 303 309 304 301 305 307 308 302 029 097 300 315 316 315 316 112 086 318 324 Parts lists Parts lists cont 5412 755 GB ...

Page 155: ...02 096 082 001 011 095 010 040 092 095 010 099 021 023 099 085 034 013 107 085 032 028 141 142 096 088 015 100 012 103 105 102 016 017 104 106 020 093 009 089 117 Parts lists Parts lists cont 5412 755 GB Service ...

Page 156: ...156 131 027 134 054 094 035 028 051 094 055 038 096 055 050 056 057 142 133 130 052 106 087 084 039 098 099 084 084 080 080 105 084 110 053 097 086 086 058 059 Parts lists Parts lists cont 5412 755 GB ...

Page 157: ...157 168 165 167 166 164 160 111 037 089 094 080 033 080 030 080 080 162 085 036 094 025 026 024 098 084 087 080 084 171 172 173 143 080 162 151 150 Parts lists Parts lists cont 5412 755 GB Service ...

Page 158: ...158 094 084 084 044 024 080 041 084 174 084 115 048 145 047 080 094 084 115 084 114 084 132 135 042 045 080 080 046 043 Parts lists Parts lists cont 5412 755 GB ...

Page 159: ... gas H mbar 17 4 25 mbar for LPG mbar 25 47 mbar Tick gas type Carbon dioxide con tent CO2 at lower output by vol at upper output by vol Oxygen content O2 at lower output by vol at upper output by vol Carbon monoxide content CO at lower output ppm at upper output ppm Commissioning service reports Commissioning service reports 5412 755 GB Service ...

Page 160: ...4 1 Rated output for DHW heating kW 4 3 to 17 5 5 9 to 26 4 Rated heat input range kW 4 5 to 17 9 6 2 to 29 7 Power consumption W 90 105 Connection values in relation to the max load Natural gas H m3 h 1 89 3 23 LPG kg h 1 40 2 39 Product ID _ 0085BU0051 Cylinder heat up time 15 to 60 C 19 mins Cylinder heat up time 70 volume 15 mins Note The supply values are only for documentation purposes e g i...

Page 161: ... 335 1 EN 625 EN 60 335 2 102 EN 677 EN 61 000 3 2 EN 806 EN 61 000 3 3 EN 12897 In accordance with the following Directives this product is designated _ 0085 97 23 EC 2006 95 EC 92 42 EEC 2009 142 EC 2004 108 EC This product meets the requirements of the Efficiency Directive 92 42 EEC for con densing boilers Allendorf 2 April 2010 Viessmann Werke GmbH Co KG pp Manfred Sommer Certificates Declarat...

Page 162: ... that the product Vitodens 242 F meets the NOx limits specified by the 1st BImSchV paragraph 7 2 Germany Allendorf 2 April 2010 Viessmann Werke GmbH Co KG pp Manfred Sommer Certificates Manufacturer s certificate according to the 1st BImSchV Germany 5412 755 GB ...

Page 163: ...e position 114 Cylinder cleaning 46 Cylinder temperature sensor 117 D Diaphragm expansion vessel 26 Draining the boiler Heating water side 115 On the DHW side 45 E Electronic combustion controller 143 Extension AM1 131 EA1 133 Internal 129 130 Extension kit for heating circuit with mixer 125 External blocking 136 External demand 136 F Fault codes 104 Fault history 103 Fault manager 62 Fault memory...

Page 164: ...cing the heat up time 141 Relay test 101 Remote control 143 Removing the front panels 26 Reports 159 Resetting codes 66 76 Room temperature adjustment 60 Rotational direction of mixer motor Changing 126 Checking 125 S Safety chain 123 Scanning operating conditions 98 Scanning operating data 98 Screed drying 137 Screed drying function 137 Setting the date 28 Setting the output 36 Setting the time 2...

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Page 167: ...167 5412 755 GB ...

Page 168: ...imited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5412 755 GB Subject to technical modifications Printed on environmentally friendly chlorine free bleached paper ...

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Viessmann FB2B, Installation And Service Instructions Manual

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