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Displayed fault
code

System characteristics

Cause

Measures

F.69

Burner in a fault state

Ionisation current lies out-
side the permissible range

Check ionisation electrode for the
following:

■

Check whether insulation block is
touching electrode ceramic.

■

Check gas train: Activate

"Mini-

mum heating output"

for ap-

prox. 4 min in actuator test. If this
causes a fault to occur, replace
BCU burner control unit.

■

In the actuator test, switch from

"Minimum heating output"

"Maximum heating output"

. If

this fault occurs during modula-
tion, check the intake screen for
contamination. Replace the fan
unit if necessary.

F.70

Burner in a fault state

Internal burner control unit
fault

Replace BCU burner control unit
(see page 109).

F.71

Burner in a fault state

Fan speed too low

■

Check fan for blockage.

■

Check setting for gas type and
flue system.

Reset the appliance.

F.72

Burner in a fault state

Fan idle state not reached Reset the appliance.

If fault occurs repeatedly, replace
fan unit.

F.73

Burner in a fault state

Internal communication
error

Reset the appliance.
If fault occurs repeatedly, replace
BCU burner control unit (see
page 109).

F.74

Burner locked out.
Internal circulation pump off.
No central heating and no
DHW heating.

System pressure too low

Top up with water.
Vent the system.

If the fault occurs repeatedly:

■

Check system pressure sensor
with external pressure gauge.

■

Check diaphragm expansion
vessel pre-charge pressure.

■

Check settings for set system
pressure and range.

F.77

Burner in a fault state

Data memory burner con-
trol unit

Reset the appliance.
If fault occurs repeatedly, replace
BCU burner control unit (see
page 109).

F.89

No central heating and no
DHW heating

Internal circulation pump
blocked

Check circulation pump. Replace if
necessary.

F.91

Function of affected exten-
sion in emergency mode

DIO electronics module
communication error

Check connections to DIO elec-
tronics module and connection to
heat management unit.

Troubleshooting

Fault messages

(cont.)

5593201

Diagnosis

Содержание B2HF

Страница 1: ... instructions for contractors VIESMANN Vitodens 200 W Type B2HF B2KF 1 9 to 32 kW Wall mounted gas condensing boiler with 7 inch colour touchscreen Natural gas and LPG version VITODENS 200 W 5593201 GB 1 2020 Please keep safe ...

Страница 2: ... system installer or a qualified per son authorised by the installer Regulations to be observed National installation regulations Statutory regulations for the prevention of accidents Statutory regulations for environmental protection Codes of practice of the relevant trade associations Relevant country specific safety regu lations Safety instructions for working on the system Working on the syste...

Страница 3: ...ase note Repairing components that fulfil a safety function can compromise the safe operation of the system Replace faulty components only with genuine Viessmann spare parts Auxiliary components spare and wearing parts Please note Spare and wearing parts that have not been tested together with the system can compromise its func tion Installing non authorised com ponents and making non approved mod...

Страница 4: ...ater escapes from the appliance there is a risk of scalding Never touch hot heating water Condensate Danger Contact with condensate can be harmful to health Never let condensate touch your skin or eyes and do not swallow it Flue systems and combustion air Ensure that flue systems are clear and cannot be sealed for instance due to accumulation of condensate or other external causes Ensure an adequa...

Страница 5: ...nces that exhausts air to the outside can result in life threatening poisoning due to a reverse flow of flue gas Fit an interlock circuit or take suita ble steps to ensure an adequate supply of combustion air Safety instructions Safety instructions cont 5593201 ...

Страница 6: ...ing the circulation pump to P1 and P2 26 Floating switching contact connection 26 Information on connecting PlusBus subscribers 27 Checking the CAN bus terminator switch setting 27 Power supply for accessories at plug lH aBH 230 V 27 Power supply fÖ 29 Routing connecting cables leads 30 WiFi operational reliability and system requirements 31 Wireless signal range of WiFi connection 31 Angle of pen...

Страница 7: ... hydraulic unit 110 Checking the fuse 112 8 Function description Appliance functions 113 Heating mode 113 Venting program 113 Filling program 113 Heating curve 113 Screed drying 115 Raising the reduced room temperature 117 DHW heating 119 Increased DHW hygiene 119 Interval function solar circuit pump 120 External heating circuit hook up if installed 120 9 Connection and wiring dia gram HMU heat ma...

Страница 8: ...ion and identified as follows Symbol Meaning Steps required during commissioning Not required during commissioning Steps required during inspection Not required during inspection Steps required during maintenance Not required during maintenance Intended use The appliance is intended solely for installation and operation in sealed unvented heating systems that comply with EN 12828 with due attentio...

Страница 9: ...s the other gas types and pressures with which the boiler can be operated A conversion within the stated natu ral gas groups is not required For conversion to LPG without conversion kit see Commissioning inspec tion and maintenance Type plate A Fig 1 A Type plate with QR code for appliance registration The type plate of the heat generator contains exten sive product information and an appliance sp...

Страница 10: ... available to help setting up the heating system Detailed information on system examples can be found at www viessmann schemes com Spare parts lists Information about spare parts can be found at www viessmann com etapp or in the Viessmann spare part app Information System examples 5593201 Information ...

Страница 11: ...drain B Heating flow C DHW gas condensing combi boiler Cylinder flow gas condensing system boiler D Gas connection E Cold water gas condensing combi boiler Cylinder return gas condensing combi boiler F Heating return G Filling draining H Dimension for installation with DHW cylinder below the boiler Preparing for installation Preparing for installation 5593201 Installation ...

Страница 12: ...are the water connections to the valves fittings of the mounting bracket Thoroughly flush the heating system Please note To prevent appliance damage connect all pipework free of load and torque stress Note To prevent dirt from entering the connections Do not remove the protective caps until you are about to fit the boiler Note If an on site expansion vessel also has to be instal led Install this e...

Страница 13: ...valve is installed to DIN 4753 Only use a non return valve or a combined shut off and non return valve in conjunction with a safety valve If the safety valve is used the cold water shut off valve on the boiler must not be shut off Remove the toggle on the cold water shut off valve if installed to prevent manual shut off Shock arrestor If draw off points likely to cause water hammer are connected t...

Страница 14: ...caps from connections on the heating water side and from the gas con nection until you are about to commence installa tion Mounting the boiler on the pre plumbing jig or mounting frame Note Various installation components can be found in a sep arate pack Keep the installation components safe as they will be required for later installation Installation sequence Mounting the boiler and making connec...

Страница 15: ...ing frame Self supporting mounting frame 1 Pull off the protective caps 2 Replace gaskets Internal gasket diameter Gas connection Ø 18 5 mm Connections on the heating water side Ø 17 0 mm Note Gasket for gas connection is attached to the gas shut off valve 3 Suspend the Vitodens from the wall mounting bracket Note After mounting ensure correct seating Installation sequence Mounting the boiler and ...

Страница 16: ... tings counterhold with a suitable tool Never trans fer any forces to the internal components 6 Tighten locking ring fittings so that they form a tight seal One turn beyond finger tight Fitting the boiler to the wall mounting bracket Note Various installation components can be found in a sep arate pack Keep the installation components safe as they will be required for later installation Installati...

Страница 17: ...valve 3 Suspend the Vitodens from the wall mounting bracket 4 Note Only remove the clip under the gas pipe union nut once the appliance has been installed Clip is no longer required 5 Torque settings Union nuts G 30 Nm Union nuts G 24 Nm When carrying out any work on gas connection fit tings counterhold with a suitable tool Never trans fer any forces to the internal components Installation sequenc...

Страница 18: ...amming unit is located on the underside of the boiler If required for ease of operation the programming unit can be loca ted on the top of the boiler To do so reposition the bracket at the top 2x 2 3 8 180 4 5 6 7 1 Fig 7 Installation sequence Mounting the boiler and making connections cont 5593201 Installation ...

Страница 19: ... G male thread C Gas connection R male thread D Cylinder return G male thread E Heating return R male thread F Filling draining Connection on the heating water side of the DHW cylinder The required intermediate pieces Rp female thread on the cylinder flow and return are part of the connection set for the DHW cylinder If no DHW cylinder is being connected seal off the connections with caps Gas cond...

Страница 20: ... way that prevents any risk of scalding Note Observe local waste water regulations Filling the trap with water Fig 11 Pour at least 0 3 l of water into the flue gas connection Please note During commissioning flue gas may escape from the condensate drain Always fill the trap with water before commis sioning Note If there is a risk of frost only fill the trap just before commissioning Flue gas conn...

Страница 21: ...ollowing conditions are met Free passage through the flue gas pipes Flue system with positive pressure is gas tight Inspection port covers checked for secure and tight seating Apertures for ensuring sufficient combustion air sup ply are open and cannot be closed off Applicable regulations on installing and commission ing flue systems have been followed Danger Leaking or blocked flue systems or an ...

Страница 22: ...as leads to a risk of explosion Check all connections on the gas side also inside the appliance for tightness Note Only use suitable and approved leak detection agents EN 14291 and devices for the tightness test Leak detection agents with unsuitable constit uents e g nitrides sulphides can cause material damage Remove residues of the leak detection agent after testing Please note Excessive test pr...

Страница 23: ... required only if the programming unit is located at the bottom Do not disconnect the plug from the mounting panel Do not change the position of the cable or its fixture fixing point on casing Please note Electronic assemblies can be damaged by elec trostatic discharge Prior to commencing any work touch earthed objects such as heating or water pipes to dis charge static loads Installation sequence...

Страница 24: ... pump for heating circuit without mixer or DHW circulation pump A BCU burner control unit power supply connected in the delivered condition B Power supply for accessories C External plug on underside of appliance see also following diagram Connections to extra low voltage ELV plugs Outside temperature sensor Terminals 1 and 2 on external plug C Cylinder temperature sensor Terminals 3 and 4 on exte...

Страница 25: ...able through re fit the plug to the wire ferrules Required plugs are supplied in separate packaging For cables without strain relief bushings provide strain relief in the wiring chamber in the form of cable ties Outside temperature sensor Fitting location for outside temperature sensor North or north westerly wall 2 to 2 5 m above ground level in multi storey buildings in the upper half of the sec...

Страница 26: ... low loss header and heating circuits with mixer 2 If no circulation pump for heating circuit without mixer is present DHW circulation pump Note If a heating circuit pump for heating circuit without mixer is installed connect the DHW circulation pump to the P1 extension accessories Connect DHW circulation pumps with standalone functions directly to the 230 V supply The function of connections P1 a...

Страница 27: ...nning or end of this system not in the middle of the CAN bus system connected to only one plug lA Set switch A to ON C C A 91 91 B B ON Fig 19 A Heat generator HMU heat management unit B CAN bus cable C CAN bus other subscribers If the device is integrated into a CAN bus system and is not located at the beginning or end of the CAN bus system both plugs lA connected Do not set switch A to ON A C C ...

Страница 28: ...Bus system length max 50 m for 0 34 mm2 cable cross section and unshielded cable If the current flowing to the connected working parts e g circulation pumps is higher than the fuse rating of the relevant accessory only use the output con cerned to control an on site relay Accessories Internal fuse protec tion EM M1 EM MX mixer exten sion kit 2 A EM EA1 extension 2 A EM S1 extension not for Vitoden...

Страница 29: ...t electrical installation in line with installation requirements In addition we recommend the installation of an AC DC sensitive RCD FI Class A Connect the power cable to the electricity supply using a fixed connection If the power supply to the appliance is connected with a flexible cable ensure that the live conductors are pulled taut before the earth conductor in the event of strain relief fail...

Страница 30: ...e supplied cable clips Route extra low voltage ELV leads 42 V separately from cables 42 V 230 V Secure the cable clips on the underside using the sup plied screws Do not route cables over sharp edges Please note If connecting cables leads come into contact with hot components they will be damaged When routing and securing cables leads on site ensure that the maximum permissible tempera tures for t...

Страница 31: ...s are damped e g by air or when pene trating walls Wireless signals are reflected by metallic objects e g reinforcements embedded in walls metal foil of thermal insulation and thermal glazing with metal lised thermal vapour deposit Wireless signals are isolated by service ducts and lift shafts Wireless signals are disrupted by devices that also operate with high frequency signals Maintain a dis ta...

Страница 32: ...32 Ideal angle of penetration C B A Fig 25 A WiFi router B Heat generator C Wall Installation sequence WiFi operational reliability and system cont 5593201 Installation ...

Страница 33: ...33 2 2x 1 Fig 26 Installation sequence Closing the wiring chamber 5593201 Installation ...

Страница 34: ...34 Programming unit located at the bottom 6 A 5 1 2x 4 2 3 Fig 27 Lightguide A at the top Installation sequence Fitting the programming unit and front panel 5593201 Installation ...

Страница 35: ... cable tie 2 Pull Lightguide A out of all 4 detents at once and remove As you do so pull it upwards between 2 detents in the middle and at the same time Ensure that the locking tabs do not break off 3 Turn Lightguide A around and clip it into place at the bottom of the programming unit 4 Fit the front panel 5 Fit the programming unit with Lightguide A at the bottom Installation sequence Fitting th...

Страница 36: ...Checking the burner gasket and burner gauze assembly 54 20 Checking and adjusting the ignition and ionisation electrodes 55 21 Checking the back draught safety devices 55 22 Cleaning the heating surfaces 56 23 Checking the condensate drain and cleaning the trap 56 24 Installing the burner 58 25 Checking the neutralising system if installed 26 Checking the flow limiter only for gas condensing combi...

Страница 37: ... See chapter Calling up the commissioning assistant at a later point page 41 3 Commission the heat generator and follow the commissioning assistant See the overview below Note Depending on the type of heat generator the accessories connected and other settings not all menu points will be displayed Note After the commissioning assistant has finished check that the actuators are connected and operat...

Страница 38: ...program can be set for each heating circuit Gas type If operating with LPG switch to LPG Flue system type only Vitodens 2xx Single connection Only one heat generator is connected to the flue system factory setting Multiple connections Several heat generators are connected to the flue system Filling and venting System pressure Set value Range Select the set system pressure e g 1 5 bar Select the ra...

Страница 39: ...der connected upstream of the low loss header DHW heating down stream of low loss head er DHW heating with e g separate DHW cylinder connected downstream of the low loss header Buffer cylinder heating only System with heating water buffer cylinder without DHW heating DHW heating upstream of buffer cylinder DHW heating with e g separate DHW cylinder connected upstream of the heating water buffer cy...

Страница 40: ...the display For further details regarding the flue gas temperature sensor test see Repairs Note If fault message F 416 continues to be displayed although the flue gas temperature sensor has been correctly positioned Initial commissioning may result in burner faults e g caused by air in the gas line Elimi nate the fault and reset the appliance Note The burner remains locked out until the test has b...

Страница 41: ...of deposits and corrosion and may lead to appli ance damage Flush the heating system thoroughly before filling Only use fill water of potable water quality Special antifreeze suitable for heating systems can be added to the fill water The antifreeze manufacturer must verify its suitability Fill and top up water with a water hardness in excess of the following values must be soft ened e g with a sm...

Страница 42: ...ombustion chamber 5 Fit hose to air vent valve C Route the hose into a suitable container or drain outlet 6 Close the shut off valves on the heating water side 7 Open air vent valve C and fill valve B in the heat ing return Vent flush under mains pressure until no more air noise is audible 8 Close air vent valve C and boiler drain fill valve B Check the system pressure at pressure gauge D The indi...

Страница 43: ...eating system 1 Close the gas shut off valve and switch the appli ance ON 2 Activate the venting program see commissioning assistant or following chapter 3 Adjust the system pressure The display shows the system pressure 4 Disconnect the supply hose from the boiler drain fill valve 5 Open the gas shut off valve Activating the venting function Tap the following buttons 1 2 Service 3 Enter password ...

Страница 44: ...d with an electronic combustion controller that adjusts the burner for optimum combus tion in accordance with the prevailing gas quality For operation with natural gas no adjustment is therefore required across the entire Wobbe index range The boiler can be operated within the Wobbe index range 9 5 to 15 2 kWh m3 34 2 to 54 7 MJ m3 For operation with LPG the gas type needs to be changed on the con...

Страница 45: ...45 1 2x 1 2 3 2x 2 3 Fig 32 Commissioning inspection maintenance Removing the front panel 5593201 ...

Страница 46: ...ble tie Checking the static pressure and supply pressure Danger CO formation as a result of incorrect burner adjustment can have serious health implications Always carry out a CO test before and after work on gas appliances Operation with LPG Purge the LPG tank twice on commissioning replace ment Vent the tank and gas connection line thoroughly after purging Commissioning inspection maintenance Mo...

Страница 47: ...ons 07 Check the supply flow pressure For set values see the following table Note Use a suitable measuring device with a resolution of at least 0 1 mbar 0 01 kPa to check the supply pressure 08 Record the actual value in the report Implement measures as indicated in the table below 09 Shut down the boiler Close the gas shut off valve Remove the pressure gauge Close test connector A with the screw ...

Страница 48: ...Set the pre charge pres sure to 20 mbar 2 0 kPa for natural gas and 50 mbar 5 0 kPa for LPG Notify your gas supply utility or LPG suppli er Function sequence and possible faults Display Measure Control unit issues a heat demand No Increase set value Ensure heat transfer Yes Fan starts No Fault F 59 F 457 Check connection cables on fan Check power supply on fan Yes Ignition No Fault F 359 Check ign...

Страница 49: ... shooting Setting the max heating output A limit can be set on the maximum heating output for heating mode The limit is set via the modulation range Note The flow rate must be checked before the max heat ing output can be adjusted Ensure adequate heat transfer 01 Tap 02 Select Service 03 Enter password viservice 04 Use to confirm 05 Select System configuration 06 Select Boiler 07 Parameter 596 0 M...

Страница 50: ...roup Min speed Parameter 1102 0 Max speed Parameter 1102 1 In the delivered condition the minimum pump rate and the maximum pump rate are set to the following values Rated heating output in kW Speed settings in the delivered condition in Min pump rate Max pump rate 11 60 60 19 60 65 25 60 75 32 60 100 In the following system conditions the internal circu lation pump is operated at a constant speed...

Страница 51: ...n pump A 10 B 20 C 30 D 40 E 50 F 60 G 70 H 80 K 90 L 100 Activating screed drying Screed drying 6 different temperature profiles can be set for screed drying Preset temperature profiles can be adjusted via parameter 897 0 Screed drying in the General group For further details see Function description Note Screed drying applies to all connected heating circuits simultaneously DHW heating is not po...

Страница 52: ...concentration is less than 0 2 or the O2 concentration is greater than 20 6 the flue pipe is deemed to be sufficiently gas tight If actual CO2 values are greater or O2 values are lower then pressure test the flue pipe with a static pressure of 200 Pa Please note If the test port is not sealed combustion air is drawn in from the room After the tightness test re seal the test port with the plug Remo...

Страница 53: ...g 3 Disconnect cables and leads from Fan motor A 2 plugs Ionisation electrode B Ignition unit C Earth D 4 Undo gas supply pipe fitting E 5 Undo four screws F and remove the burner Note Cover gas connection E so that no small parts can fall into it Commissioning inspection maintenance Removing the burner cont 5593201 ...

Страница 54: ... and thermal insulation ring F Check components for damage 5 Install new burner gasket G Observe correct installation position Align the tab as per the dia gram 6 Insert thermal insulation ring F and burner gauze assembly D with gasket E Observe correct installation position Align the tab as per the dia gram 7 Align the hole in burner gauze assembly D with the burner door pin Secure burner gauze a...

Страница 55: ...ack draught safety devices Only for multiple connections to a flue system or multi boiler systems with a flue gas cascade Back draught safety device in the mixing shaft of the burner A B Fig 41 1 Undo 2 screws and remove fan A 2 Remove back draught safety device B 3 Check the damper and gasket for dirt and damage Replace if necessary 4 Refit back draught safety device B Note Observe correct instal...

Страница 56: ...er use brushes to clean the heating sur faces Please note Prevent damage due to cleaning water Cover electronic components with suitable watertight material Note Discolouration on the heat exchanger surface is a nor mal sign of use It has no bearing on the function and service life of the heat exchanger The use of chemical cleaning agents is not required A Fig 43 1 Use a vacuum cleaner to remove c...

Страница 57: ...and refit it on the drain hose Please note If the trap is not filled with water flue gas can escape Only start the appliance when the trap has been filled Check that the trap is seated correctly 8 Refit supply hose 9 Danger Risk of electric shock from escaping conden sate Check the connections for leaks and check that the trap is seated correctly Note Route the drain hose without any bends and wit...

Страница 58: ...tions for leaks Danger Escaping gas leads to a risk of explosion Check all fittings for gas tightness In the case of wall mounted appliances also check the gas shut off valve fitting on the under side 5 Connect the cables leads Fan motor A 2 plugs Ionisation electrode B Ignition unit C Earth D Checking the neutralising system if installed Commissioning inspection maintenance Installing the burner ...

Страница 59: ...rt Undo the catch and remove the burner control unit from the retainer by lifting it upwards Note The expansion vessel can lose some of its charge pressure over time When the boiler heats up the pressure rises to 2 or 3 bar 0 2 or 0 3 MPa The safety valve may also respond and discharge the excess pressure Therefore check the expansion vessel pre charge pressure annually Check whether the installed...

Страница 60: ...ng gas leads to a risk of explosion Check gas equipment including inside the appli ance for leaks Note Only use suitable and approved leak detection agents EN 14291 and devices for the tightness test Leak detection agents with unsuitable constituents e g nitrides sulphides can cause material damage Remove residues of the leak detection agent after test ing Fitting the front panel See page 34 Check...

Страница 61: ...n the boiler flue connection 2 Open the gas shut off valve Start the boiler Cre ate a heat demand 3 Adjust the lower heating output See the following chapter 4 Check the CO2 content If the actual value deviates from the permissible ranges implement steps lis ted above 5 Enter the actual value into the report 6 Adjust the upper heating output See the following chapter 7 Check the CO2 content If the...

Страница 62: ... buttons 1 2 Heating 3 Select Heating circuit 1 or Heating circuit for the required heating circuit 4 Heating curve 5 Set the heating curve according to the require ments of the system using Slope or Level 6 to confirm Calling up and resetting the maintenance display In the following cases will be displayed red indica tor flashes The specified limits have been reached There is cause for a warning ...

Страница 63: ... ler must make the user aware of the required mainte nance work DHW hygiene For optimum DHW hygiene avoid DHW temperatures that are 50 C For larger systems and systems with low water exchange the temperature should not drop below 60 C Hygiene function The DHW can be heated to a specified higher set DHW temperature for a period of one hour To activate the function see the operating instructions Inf...

Страница 64: ...arameters 08 09 for the required value according to the fol lowing tables 10 to accept the set value General Note Parameter values in bold are factory settings 508 0 UTC time zone Setting Explanations Setting of the UTC time zone in which the appliance is located 2 The factory setting is UTC 1 h 24 to 24 Time difference adjustable from 12 h to 12 h in in crements of 0 5 h 528 0 Set flow temperatur...

Страница 65: ... changeover from winter to summertime Setting Explanations 3 Month of changeover March 1 to 12 Month of changeover adjustable from January to De cember 912 3 Earliest day of changeover from summer to wintertime Setting Explanations 25 Changeover from 03 00 h to 02 00 h occurs on the Sunday after or on this set date 1 to 31 Day of changeover adjustable from 1st to 31st of the month 912 4 Month of c...

Страница 66: ...ure Setting Explanations Temperature limit for raising the reduced set room temperature see function description 14 Temperature limit in the delivered condition 14 C 60 to 10 Temperature limit adjustable from 60 to 10 C in 1 C increments 1504 0 Source for date and time Setting Explanations Selection of source for date and time The setting depends on the heat generator and acces sories Local 0 Fact...

Страница 67: ... of the primary circuit pump in heating mode Setting Explanations Set speed of internal circulation pump In heating mode With external demand With demand in conjunction with a low loss header Delivered condition specified by settings specific to the appliance 20 to 100 Set speed adjustable from 20 to 100 1240 0 Operating mode of primary circuit pump Setting Explanations 1 Automatic Switched on reg...

Страница 68: ... if parameter 1606 0 has been set to 1 50 Factory setting 50 K x min 5 to 255 Adjustable from 5 to 255 K x min The higher the value the later the burner switches off DHW Note Parameter values in bold are factory settings 497 0 Operating mode of DHW circulation pump Setting Explanations DHW circulation pump 0 Time program 4 Selected cycle see parameter 497 3 497 1 DHW circulation pump for auxiliary...

Страница 69: ...reased DHW tempera ture Inform the system user of the risk from the high er outlet temperature at the taps ON 1 Scald protection ON maximum DHW temperature 60 C Note Even with the scald protection switched on higher outlet temperatures may occur at the draw off points in the following cases With active hygiene function While the appliance is being calibrated 534 0 Circulation pump run on Setting E...

Страница 70: ...No time limit for DHW heating 1 to 240 Duration of DHW heating adjustable from 1 to 240 min in 1 min increments 1087 1 Min delay until next DHW heating Setting Explanations Minimum delay before DHW heating starts again even though there is a demand Cannot be adjusted on gas condensing combi boilers 60 Delivered condition delay of 60 min 60 to 240 Delay adjustable from 60 to 240 min in 1 min incre ...

Страница 71: ...ting Explanations Set flow temperature increased when changing from operation at reduced room temperature to operation at standard room temperature or comfort room tempera ture See also chapter Function description 0 K 0 Delivered condition increase 0 K 0 to 20 Temperature rise adjustable from 0 to 20 K 426 4 Duration for set flow temperature increase heating circuit 2 Setting Explanations Duratio...

Страница 72: ...om temperature in fluence Weather compensated with room tempera ture hook up 7 Weather compensated with room temperature influ ence see also parameter 933 7 933 7 Room influence factor heating circuit 1 Setting Explanations The higher the value the greater the influence of the room temperature on the set flow temperature of the heating circuit heating curve Operation with room temperature hook up ...

Страница 73: ...ature on the set flow temperature of the heating circuit heating curve Operation with room temperature hook up must be set for the heating cir cuit parameter 934 6 Change value for heating cir cuit with mixer only For a sample calculation see chapter Heating curve in the Function description 8 Room influence factor 0 to 64 Room influence adjustable from 0 to 64 935 3 Priority DHW heating heating c...

Страница 74: ...eed of the internal circulation pump in heating mode with standard room temperature Delivered condition specified by settings specific to the heat generator 0 to 100 Minimum speed adjustable from 0 to 100 1102 1 Max speed of speed controlled primary heating circuit pump in standard mode heating circuit 1 Setting Explanations Maximum speed of the internal circulation pump in heating mode with stand...

Страница 75: ...elivered condition 74 C 10 to 100 Setting range limited by heat generator specific pa rameters 1395 1 Heating limit Economy function outside temperature heating circuit 1 Setting Explanations Heating circuit pump logic function summer economy control Heating circuit pump switches off when out side temperature 1 K above selected value Heating circuit pump switches back on when outside tempera ture ...

Страница 76: ... solar yield 0 1 to 25 5 l min 0 1 to 25 5 Flow rate adjustable from 0 1 to 25 5 l min 1 step 0 1 l min 1118 0 Min speed solar circuit pump Setting Explanations 23 Minimum speed of solar circuit pump in 0 to 100 Speed adjustable from 0 to 100 1118 1 Max speed solar circuit pump Setting Explanations 84 Minimum speed of solar circuit pump in 0 to 100 Speed adjustable from 0 to 100 1125 0 Maximum cyl...

Страница 77: ... water as heat transfer medium 1 Calculation of solar yield with Viessmann heat transfer medium 1394 0 DHW set temperature for reheating suppression Setting Explanations 40 C 40 DHW set temperature for reheating suppression Above the selected set temperature reheating sup pression is active 0 to 95 DHW set temperature adjustable from 0 to 95 C 1492 0 Start temperature differential solar circuit pu...

Страница 78: ...xplanations 8 K 8 Only in conjunction with SDIO SM1A electronics mod ule 2 to 30 Start temperature differential adjustable from 2 to 30 K In relation to central heating backup Temperature dif ferential between heating circuit return and cylinder In relation to solar preheating Temperature differential between the two cylinders Do not set in conjunction with parameter 1598 1599 1 Stop temperature d...

Страница 79: ...or EM MX extensions Heating circuit 2 with mixer Rotary switch on extension kit to 1 Heating circuit 3 with mixer Rotary switch on extension kit to 2 Note EM EA1 extensions may have the same subscriber number as the EM P1 EM M1 or EM MX extensions The following table shows an example of how a sys tem may be equipped Function Electronics mod ule Extension Setting Rotary switch S1 System with solar ...

Страница 80: ...circuit 2 Heating circuit 3 Heating circuit 4 1 DHW Solar energy RF module Actuator test System configuration Message history Service functions System pressure setting Reset service Filling Air vent valve System log WLAN Information Energy statement reset Change passwords Commissioning Appliances detected Exit service Access point ON OFF Note Tap to return to Service main menu 1 only Vitodens 3xx ...

Страница 81: ...quest master password from the Viessmann Technical Service 2 3 Service 4 Enter password viservice 5 Use to confirm 6 Change passwords 7 Reset all passwords 8 Enter master password 9 Confirm twice with Diagnosis Checking operating data Operating data can be called up in various areas See Diagnosis in the service menu overview Operating data on heating circuits with mixer can only be called up if su...

Страница 82: ...r mode active outside temperature economy function S 74 Heating suppression heating S 75 DHW circulation pump active Warnings to call up saved warning messages A 11 System pressure has fallen below the standard range Measure Check system pressure and dia phragm expansion vessel Check settings for set system pressure and range in the commissioning assistant A 12 Real time clock battery flat Measure...

Страница 83: ... circuit pump speed Set value Internal circulation pump speed in 3 way valve target posi tion Heating 3 way diverter valve set to heating mode Middle 3 way diverter valve in central position filling draining DHW 3 way diverter valve set to DHW heating Heating circuit 1 pump speed Set value Speed heating circuit pump heating circuit 1 without mixer in Heating circuit 2 pump speed Set value Speed he...

Страница 84: ...aining DHW 3 way diverter valve set to DHW heating Circulation pump for cyl inder heating On Off DHW circulation pump On Off Group Solar not for Vitodens 222 W Solar circuit pump set speed Set value Speed solar circuit pump in Circulation pump hy giene function On Off Circulation pump solar On Off 3 way valve solar Open Target position Close Stop Diagnosis and service checks Checking outputs actua...

Страница 85: ...tension module The rotary switch position was set during installation To identify the affected module check the position of rotary switch S1 on the module if required Note See also page 82 The following is displayed Date and time of the occurrence of the fault Fault code Description of the fault Subscriber number of the component on which the fault has occurred PlusBus subscriber components 0 EM S...

Страница 86: ...86 A B C Fig 49 A BCU burner control unit B HMU heat management unit C HMI programming unit with RF module Troubleshooting Overview of electronics modules 5593201 Diagnosis ...

Страница 87: ...s 3 and 4 Replace faulty component if re quired F 9 No DHW heating Lead break outlet flow sensor Check cable between BCU and sensor F 10 No DHW heating Short circuit outlet flow sensor Check cable between BCU and sensor F 11 No solar DHW heating or central heating backup Lead break collector tem perature sensor Check collector temperature sen sor Measure voltage at sensor input on electronics modu...

Страница 88: ...w temperature sensor low loss header Measure voltage at sensor input on electronics module Set value 3 3 V with sensor disconnected F 49 Burner in a fault state Lead break flue gas tem perature sensor Check flue gas temperature sen sor Reset the appliance F 50 Burner in a fault state Short circuit flue gas tem perature sensor Check flue gas temperature sen sor Reset the appliance F 57 Control mode...

Страница 89: ...low sensor and circulation pump Check 3 way diverter valve func tion in actuator test Vent the system Reset the appliance once the flue system has cooled down F 67 Burner in a fault state Ionisation current lies out side the permissible range Check gas supply gas pressure and gas flow switch check gas solenoid valve and inlet strainer Check ionisation electrode for the following Clearance to burne...

Страница 90: ...tate not reached Reset the appliance If fault occurs repeatedly replace fan unit F 73 Burner in a fault state Internal communication error Reset the appliance If fault occurs repeatedly replace BCU burner control unit see page 109 F 74 Burner locked out Internal circulation pump off No central heating and no DHW heating System pressure too low Top up with water Vent the system If the fault occurs ...

Страница 91: ...ne by one Check that there aren t more than 2 Vitotrol 200 E connected to the HMU Check whether there is a short cir cuit at the PlusBus cable F 104 Depending on configuration of EM EA1 extension DIO electronics module External fault message in put active Check connected external device F 142 Burner in a fault state Communication error CAN bus Check the fan unit for correct function For this check...

Страница 92: ...e and date F 342 No central heating no DHW heating Communication error burner control unit BCU Check connecting cable to the burner control unit plug X4 on BCU Check all plug in connections and cables of the internal CAN Remove all plugs except X4 X2 X16 and X18 from the BCU burn er control unit Check whether fault persists Note Several other fault messages will be added due to the removed plugs I...

Страница 93: ...bly for contamination Reset the appliance If the fault oc curs repeatedly replace the gas fan unit F 350 F 351 Burner in a fault state Ionisation current lies out side the permissible range Replace BCU burner control unit see page 109 F 352 Burner in a fault state CO limit within appliance exceeded Check entire flue gas path for the following Flue gas recirculation Leaks Flue gas back pressure cau...

Страница 94: ...e F 359 Burner in a fault state No ignition spark Check whether the ignition elec trode insulation is damaged Check for a voltage of 230 V at the ignition module during the ig nition phase If not replace the BCU burner control unit If 230 V is present at the igni tion module but there is still a fault replace the ignition module Check connection cables and leads from ignition module and ignition e...

Страница 95: ...e Reset the appliance If fault occurs repeatedly replace fan unit F 372 Burner in a fault state Repeated flame loss dur ing calibration Check ionisation electrode and connecting cable Check plug in connections for loose contacts Check flue system Remove flue gas recirculation if required Check system for condensate backup Visually inspect gas solenoid valve inlet and strainer on the in let side fo...

Страница 96: ...eck ionisation electrode con necting cable for damage and ensure it is secure Check ionisation electrode re place if necessary Reset the appliance F 380 Burner in a fault state Flame is lost immediately after flame formation dur ing safety time Check gas supply gas pressure and gas flow switch Check balanced flue system for flue gas recirculation Check ionisation electrode burner gauze assembly Cl...

Страница 97: ...ontinues to persist replace BCU burner control unit see page 109 Reset the appliance F 396 Burner in a fault state BCU burner control unit faulty Replace BCU burner control unit see page 109 Reset the appliance F 399 Burner in a fault state IO electrode earth fault BCU burner control unit faulty Check IO electrode for earth fault If fault continues to persist replace BCU burner control unit see pa...

Страница 98: ...lead to sensor Reset the appliance F 447 F 448 Burner in a fault state Deviation ionisation volt age signal Replace BCU burner control unit see page 109 Reset the appliance F 449 F 450 F 451 F 452 Burner in a fault state Error in scheduled pro gram run monitoring Reset the appliance If fault recurs replace BCU burner control unit see page 109 F 453 Burner in a fault state Synchronisation error se ...

Страница 99: ...equired Reset the burner Note Deposits on the electrodes indicate foreign bodies in the combustion air Check the installation room and flue system for causes of the de posits For example Laundry de tergents cleaning agents toilet ries deposits in the ventilation air supply chimney If burner gauze assembly and ioni sation electrode have been re placed also clean fan unit gas air channel and Venturi...

Страница 100: ... indicate foreign bodies in the combustion air Check the installation room and flue system for causes of the de posits For example Laundry de tergents cleaning agents toilet ries deposits in the ventilation air supply chimney If burner gauze assembly and ioni sation electrode have been re placed also clean fan unit gas air channel and Venturi extension F 467 Burner in a fault state Gas supply insu...

Страница 101: ...473 No heat demand HMU heat management unit communication error Check connecting cable between burner control unit and HMU heat management unit F 474 Burner in a fault state Error in scheduled pro gram run monitoring Reset the appliance If fault occurs repeatedly replace BCU burner control unit see page 109 F 517 Control mode remote control unit not functioning Lead break PlusBus ca ble incorrect ...

Страница 102: ...DIO rotary switch F 545 Mixer closes Heating circuit pump is operational Short circuit flow temper ature sensor for heating circuit 2 with mixer Check flow temperature sensor mixer 2 Measure voltage at sensor input on electronics module Set value 3 3 V with sensor disconnected F 546 Mixer closes Heating circuit pump is operational Lead break flow tempera ture sensor heating circuit 3 with mixer Ch...

Страница 103: ...isconnected Note If subscriber faults occur Fault subscriber is dis played Repairs Please note Residual water will escape when the boiler or one of the following components is fitted or removed Water filled pipework Heat exchanger Circulation pumps Plate heat exchanger Components fitted in the heating water or DHW circuit Water ingress can result in damage to other components Protect the following...

Страница 104: ... on the heating water side Ø 17 0 mm Gaskets and locking ring connections are available as spare parts if required Note When carrying out any work on gas connection fittings counterhold with a suitable tool Never transfer any forces to the internal components Danger Escaping gas leads to a risk of explosion Check all connections on the gas side also inside the appliance for tightness Troubleshooti...

Страница 105: ...uide lug B Sensor 1 Connections 1 and 3 Sensor 2 Connections 2 and 4 Compare the resistances with the value for the cur rent temperature from the following diagram In the event of severe deviation 10 replace the dual sensor Danger The dual sensor is directly immersed in the heating water risk of scalding Drain the boiler on the heating water side before replacing the sensor Danger Risk of electric...

Страница 106: ...wing diagram If the results are very different from the curve 10 disconnect the wires from the sensor Repeat the test directly on the sensor Check the on site lead 2 core lead length up to 35 m with a cross section of 1 5 mm2 Depending on the test result replace the lead or the outside temperature sensor Flue gas temperature sensor 1 Check the lead and plug of flue gas temperature sensor C 2 Disco...

Страница 107: ...g See previous diagram 2 If required correct the position of the flue gas tem perature sensor 3 Check the flue gas temperature sensor resistance See previous chapter Replace faulty flue gas tem perature sensor if required 4 Turn off the ON OFF switch 5 Turn the ON OFF switch back on Restart the commissioning assistant 6 Check for leaks on the flue gas side Note If fault message F 416 continues to ...

Страница 108: ...sensor resistance to the curve 3 In the event of severe deviation 10 replace the sensor Check collector temperature sensor 0 1 1 10 100 0 20 40 60 80 100 120 140 Temperature in C Resistance in kΩ 25 Fig 54 Sensor type NTC 20 kΩ 1 Disconnect plug TS2 from the electronics mod ule Measure the resistance 2 Compare the sensor resistance to the curve 3 In the event of severe deviation 10 replace the sen...

Страница 109: ...cable only use the power cable available as a spare part from Viessmann Replacing the HMI connecting cable Please note Incorrect routing of the cable can lead to heat damage and impairment of the EMC properties For positioning and securing of the cable fixing point of the cable tie see connecting cable installation instructions Checking the plate heat exchanger 8 3 2 8 4 D A B C Fig 55 A Heating w...

Страница 110: ... as required 7 Install plate heat exchanger in reverse order using new gaskets Screw torque 3 2 Nm 0 2 Note During installation ensure the connections are positioned and the gaskets seated correctly Danger Risk of electric shock from escaping heating water or DHW Check all water side connections for tight ness Removing the hydraulic unit In case hydraulic unit components have to be replaced Danger...

Страница 111: ...111 1 2 4 3 6 5 Fig 56 Troubleshooting Repairs cont 5593201 Diagnosis ...

Страница 112: ...e HMU heat management unit down 4 Remove cover A 5 Check fuse F1 see connection and wiring dia gram Danger Incorrect or improperly fitted fuses can lead to an increased risk of fire Insert fuses without using any force Posi tion fuses correctly Only use structurally identical types with the specified response characteristics Troubleshooting Repairs cont 5593201 Diagnosis ...

Страница 113: ...sioning inspection and maintenance If output P2 is being used for another function the cir culation pump can be connected to output P1 or an EM P1 extension accessories Venting program During the venting program the circulation pump will be alternately switched on and off for 30 s over a period of 20 min The 3 way diverter valve alternates between central heating and DHW heating for a certain peri...

Страница 114: ...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 Fig 58 Slope setting ranges Underfloor heating systems 0 2 to 0 8 Low temperature heating systems 0 8 to 1 6 Set room temperature Standard room temperature or comfort room tem perature Individually adjustable for each heating circuit The heating curve is offset along the set room temper ature axis The start and stop points of the heati...

Страница 115: ...ng circuit is installed 2 with mixer 934 7 3 with mixer 935 7 4 2 with mixer 936 7 Example for determining the increase in the flow tem perature using the value of the heating curve when the actual room temperature deviates from the set room temperature Set room temperature 20 0 C RT set Actual room temperature 18 0 C RT actual Heating curve slope 1 4 Room influence factor 8 delivered condition De...

Страница 116: ...e or after the control unit has been switched off When screed drying has completed or been manually switched off the sys tem is regulated in accordance with the selected parameters Parameter 897 0 Screed drying Temperature profile 1 EN 1264 4 Flow temperature C 1 5 10 15 20 25 30 Days 50 40 30 20 10 Fig 62 Temperature profile 2 ZV parquet and flooring technology Flow temperature C Days 50 40 30 20...

Страница 117: ...room temperature can be automatically raised subject to the outside temperature The temper ature is raised in accordance with the selected heating curve and no higher than the standard set room tem perature or comfort room temperature Depending on which set room temperature will become active in the next time phase The outside temperature limits for the start and end of temperature raising can be ...

Страница 118: ...re B Heating curve for operation at reduced room tem perature Reducing the heat up time During the transition from operation at reduced room temperature to operation at standard room tempera ture or comfort room temperature the flow tempera ture will be raised in accordance with the selected heating curve The value and duration of the additional increase in the set flow temperature is adjusted in ...

Страница 119: ...f the actual cylinder temperature exceeds the set cyl inder temperature by 2 5 K the burner shuts down and circulation pump run on begins Danger Risk of injury due to increased DHW tempera ture Inform the system user of the risk from the raised outlet temperature at the draw off points Gas condensing system boiler If the set DHW temperature is set to over 60 C Gas condensing combi boiler If there ...

Страница 120: ...it is supplied with heat If the external demand is inactive contact open heat supply to the heating circuit ends regardless of current set room temperature or the switching time Please note There is no frost protection for the connec ted heating circuits Connection If just one heating circuit is web connected use plug 96 See page 26 If several heating circuits max 3 are web connec ted all contacts...

Страница 121: ...le wireless module A3 Switching mode power supply X Electrical interfaces Outside temperature sensor for weather com pensated operation Cylinder temperature sensor gas condensing system boiler fÖ Power supply Connection and wiring diagram HMU heat management unit 5593201 Appendix ...

Страница 122: ...culation pump for heating circuit without mixer Circulation pump for cylinder heating P2 Output 230 V for Circulation pump for heating circuit without mixer DHW circulation pump A To BCU burner control unit B To BCU burner control unit Connection and wiring diagram HMU heat management unit cont 5593201 Appendix ...

Страница 123: ...rature sensor sÖ Internal circulation pump primary circuit pump dÖ 3 way diverter valve dG Gas solenoid valve fÖ Power supply gF Ignition unit a Ö Fan motor a ÖA Fan motor control aND Water pressure sensor aNDA DHW flow sensor A BCU burner control unit B HMU heat management unit plug aBH C HMU heat management unit plug X4 Connection and wiring diagram BCU burner control unit 5593201 Appendix ...

Страница 124: ...rbon dioxide content CO2 For natural gas At lower heating output by vol See Check ing the com bustion qual ity Com mission ing At upper heating output by vol For LPG At lower heating output by vol At upper heating output by vol Oxygen content O2 At lower heating output by vol At upper heating output by vol Carbon monoxide content CO At lower heating output ppm 1000 At upper heating output ppm 1000...

Страница 125: ...ssure Commission ing Rated voltage V 230 Rated frequency Hz 50 Appliance protection A 6 3 Backup fuse power supply A 16 RF module integral WiFi frequency band MHz 2400 2483 5 Max transmitting power dBm 17 Zigbee frequency band MHz 2400 2483 5 Max transmitting power dBm 10 Supply voltage V 24 Power consumption W 4 Power consumption delivered condition W 37 47 68 92 Permissible ambient temperature D...

Страница 126: ... Max temperature C 120 120 120 120 Gas condensing combi boiler type B2KF Rated heating output range details to EN 15502 TF TR 50 30 C P 50 30 Natural gas kW 1 9 19 1 9 25 1 9 32 LPG kW 2 5 19 2 5 25 2 5 32 TF TR 80 60 C Pn 80 60 Natural gas kW 1 7 17 5 1 7 23 1 7 29 3 LPG kW 2 2 17 5 2 2 23 2 2 29 3 Rated heating output for DHW heating Natural gas kW 1 7 26 2 1 7 30 4 1 7 33 5 LPG kW 2 2 26 2 2 2 ...

Страница 127: ...on W 47 68 92 Permissible ambient temperature During operation C 5 to 40 During storage and transport C 5 to 65 Electronic temperature limiter setting TN C 91 Setting of electronic temperature limiter C 110 Weight Without heating water kg 34 5 34 5 34 5 Incl heating water kg 40 6 40 6 40 6 Permiss operating pressure PMS bar MPa 3 0 3 3 0 3 3 0 3 DHW heating Permiss operating pressure PMW bar 10 10...

Страница 128: ...ation or for a supplementary rough estimate to check the volumetric settings Due to fac tory settings the gas pressure must not be altered from these values Reference 15 C 1013 mbar 101 3 kPa Flue system types Available in the following countries Flue system types AE AM AZ BA BG BY CH CY CZ DK EE ES FI FR GB GR HR HU IE IS IT KG KZ LI LT LU LV MD ME MT NL NO PL PT RO RS RU SE SK TR UA UZ B23 B23P ...

Страница 129: ...ed gas volume subject to the prevailing gas quality To check the combustion quality the CO2 content or the O2 content of the flue gas is measured The pre vailing air ratio is determined using the actual values To achieve optimum combustion control the system regularly carries out an automatic self calibration also after power failures shutdown For this the combus tion is briefly regulated to maxim...

Страница 130: ...ystem are not part of ordi nary household waste For decommissioning the system isolate the system from the power supply and allow components to cool down where appropriate All components must be disposed of correctly Disposal Final decommissioning and disposal 5593201 Appendix ...

Страница 131: ...nce with Directive 2014 53 EU Using the serial number the full Declaration of Con formity can be found on the following website www viessmann co uk eu conformity Manufacturer s certificate according to the 1st BImSchV Germany We Viessmann Werke GmbH Co KG D 35107 Allendorf confirm that the product Vitodens 200 W complies with the NOx limits specified by the 1st BImSchV paragraph 6 Germany Allendor...

Страница 132: ...ult codes 87 Fault message calling up 85 Fault messages Display 85 Fault messages calling up 82 Faults Commissioning 48 Display 85 Filling function 42 113 Fill water 41 Flow limiter 59 Flow pressure 48 Flow temperature sensor 105 Flue gas temperature sensor 106 Front panel removal 14 Function descriptions 113 Function sequence 48 Fuse 112 G Gas supply pressure 47 Gas train 47 Gas type 44 Gas type ...

Страница 133: ...rential solar circuit pump 77 Start temperature differential for central heating backup 78 Start temperature for thermostat function 78 Stop temperature differential solar circuit pump 77 Stop temperature differential for central heating backup 78 Stop temperature for thermostat function 78 Parameters 64 Groups 64 Setting local time 64 Parameters calling up 64 Parameters for commissioning 62 Passw...

Страница 134: ...134 WiFi router 31 Wiring diagram 121 Keyword index Keyword index cont 5593201 ...

Страница 135: ...135 5593201 ...

Страница 136: ... 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 5593201 Subject to technical modifications ...

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