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Note
The labels "System certificate" and "Skoberne GmbH
or Groppalli flue system" enclosed with the technical
documentation may only be used in conjunction with
the Viessmann flue system made by Skoberne or
Groppalli.

Connecting the balanced flue pipe

Flue system installation instructions

Connecting several Vitodens to a shared flue sys-
tem

If multiple Vitodens are to be connected to a common
flue system, suitable Vitodens appliances are availa-
ble.

Note
Not all appliance types are approved for "multiple con-
nection".
Please order suitable Vitodens appliances; see pricel-
ist.

Note
In appliances for "multiple connection", a special back
draught safety device is installed in the mixing shaft of
the burner, downstream of the fan.
A further back draught safety device (order separately)
must be installed in the flue system above the boiler
flue connection.

Only carry out

commissioning

when the following

conditions have been met:

■

Unrestricted flow in the flue gas routes.

■

Positive pressure flue system is gas-tight.

■

Inspection port covers checked for secure and tight
seating.

■

Apertures for supplying sufficient combustion air are
open and cannot be closed.

■

All current regulations on installing and commission-
ing flue systems have been observed.

Danger

Leaking or blocked flue systems, or an inade-
quate supply of combustion air can cause life
threatening poisoning from carbon monoxide in
the flue gas.
Ensure the flue system is in good working order.
Vents for interconnected combustion air supply
must be non-sealable.
Prevent condensate drainage via a wind protec-
tor.

Installation sequence

Flue gas connection

6173886

Installation

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Содержание B0KA

Страница 1: ...SMANN Vitodens 050 W Type B0KA BPKA 3 2 to 25 kW Type B0KA M for multiple connection 7 0 to 25 kW Wall mounted gas condensing boiler Natural gas version Gas Council No B0KA 47 819 55 47 819 57 B0KA M 47 819 56 VITODENS 050 W 6173886 GB 6 2021 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 6173886 ...

Страница 6: ...ing connecting cables leads 25 WiFi operational reliability and system requirements 26 Wireless signal range of WiFi connection 26 Angle of penetration 26 Closing the wiring chamber 27 Fitting the front panel 28 4 Commissioning inspec tion maintenance Steps commissioning inspection and maintenance 29 5 System configuration parameters Calling up parameters 51 Parameters 51 Energy saving functions s...

Страница 7: ...g circuit hook up if installed 82 9 Connection and wiring dia gram HBMU heat management unit 83 10 Commissioning service reports 86 11 Specification Gas condensing combi boiler 88 Flue system types 90 Gas categories 90 Electronic combustion control unit 91 12 Disposal Final decommissioning and disposal 92 13 Certificates Declaration of conformity 93 14 Keyword index 94 Index Index cont 6173886 ...

Страница 8: ...tion Component must audibly click into place or Acoustic signal Fit new component or In conjunction with a tool Clean the sur face Dispose of component correctly Dispose of component at a suitable collec tion point Do not dispose of component in domestic waste The steps in connection with commissioning inspec tion and maintenance are found in the Commission ing inspection and maintenance section a...

Страница 9: ...e and variable speed high efficiency circulation pump Type BPKA B0KA Plate heat exchanger for DHW heating Weather compensated or constant temperature con trol unit Integral diaphragm expansion vessel 8 l capacity The selected gas category in the delivered condition and the associated nominal gas pressure are given on the boiler type plate The type plate also shows the other gas types and pressures...

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 6173886 Information ...

Страница 11: ...te 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 system boiler F Heating return G Filling draining H Dimension for siting with DHW cylinder below the boiler Preparing for installation Preparing for installation 6173886 Installation ...

Страница 12: ...er return as the 3 way diverter valve is located in the heating flow Not possible with type B0KA BPKA 3 Prepare the gas connection according to TRGI or TRF or local regulations 4 Prepare the electrical connections The appliance is delivered fitted with a power cable approx 2 m long Note Connect the power cable to the electricity supply using a fixed connection Power supply 230 V 50 Hz fuse rating ...

Страница 13: ...water hammer are connected to the boiler s DHW network e g flush valves washing machines dishwashers Shock arrestors should be installed close to the cause of the water hammer Preparing for installation Preparing for installation cont 6173886 Installation ...

Страница 14: ...14 1 4 5 3 2 Fig 4 Installation sequence Removing the boiler from the packaging 6173886 Installation ...

Страница 15: ...panel forwards slightly and lift away upwards 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 connections 6173886 Installation ...

Страница 16: ...ing frame Plumbing wall mounting frame 1 Replace gaskets Internal gasket diameter Gas connection Ø 18 5 mm Heating water side connections Ø 17 0 mm Note Gasket for gas connection is attached to the gas shut off valve 2 Suspend the Vitodens from the wall mounting bracket Note After mounting ensure correct seating Installation sequence Mounting the boiler and making connections cont 6173886 Installa...

Страница 17: ...gas tightness to BSI 6891 Torque settings Union nuts G 30 Nm Union nuts G 24 Nm When carrying out any work on gas connection fit tings hold with a suitable tool Never transfer any forces to the internal components 5 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 fo...

Страница 18: ... side Ø 17 0 mm Note Gasket for gas connection is attached to the gas shut off valve 2 Suspend the Vitodens from the wall mounting bracket 3 Note Only remove the locking clip under the gas pipe union nut once the appliance has been installed Clip is no longer required Installation sequence Mounting the boiler and making connections cont 6173886 Installation ...

Страница 19: ...ating flow R male thread B Cylinder flow 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 sea...

Страница 20: ...sible Please note The drain hose is used to route away any hot water discharged from the safety valve Lay and secure the drain hose in a 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 fi...

Страница 21: ...eam of the fan A further back draught safety device order separately must be installed in the flue system above the boiler flue connection Only carry out commissioning when the following conditions have been met Unrestricted flow in the flue gas routes Positive pressure flue system is gas tight Inspection port covers checked for secure and tight seating Apertures for supplying sufficient combustio...

Страница 22: ...ess Note Only use suitable and approved leak detection agents EN 14291 and devices for the leak test Leak detection agents with unsuitable constituents e g nitrides sulphides can cause material dam age Remove residues of the leak detection agent after testing Please note Excessive test pressure will damage the boiler and gas solenoid valve Max test pressure 150 mbar 15 kPa If a higher pressure is ...

Страница 23: ...such as heating or water pipes to dis charge static loads Layout of the electrical connections Note For further information on the connections see the fol lowing chapters 100 20 96 40 35 54 X7 X6 X2 X9 X12 X5 N 1 L N L N L L N N L N L N L B L N A C D E X20 21 10987654321 654321 654321 7 8 654321 7 8 9 Fig 14 Installation sequence Electrical connections 6173886 Installation ...

Страница 24: ...y one cable at a time without a plug Ensure diaphragm grommets are airtight If required remove plug from cable After threading the cable through re fit the plug to the wire ferrules 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 ...

Страница 25: ...ain relief failure The length of the earth conductor wire will depend on the design Max fuse rating 16 A Danger The absence of system component earthing can lead to serious injury from electric current if an electrical fault occurs The appliance and pipework must be connected to the equipotential bonding of the building Routing connecting cables leads Please note If closures or diaphragm grommets ...

Страница 26: ...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 27: ...al angle of penetration C B A Fig 18 A WiFi router B Heat generator C Wall Closing the wiring chamber 4x 1 3 2 4x Fig 19 Installation sequence WiFi operational reliability and system cont 6173886 Installation ...

Страница 28: ...28 1 2 Fig 20 Installation sequence Fitting the front panel 6173886 Installation ...

Страница 29: ...assembly 42 16 Checking and adjusting the ignition and ionisation electrodes 43 17 Checking the back draught safety devices 43 18 Cleaning the heating surfaces 44 19 Checking the condensate drain and cleaning the trap 44 20 Installing the burner 46 21 Checking the neutralising system if installed 22 Checking the flow limiter only for gas condensing combi boiler 47 23 Checking the expansion vessel ...

Страница 30: ...K to start the connection with the software tool See chapter Commissioning via software tool 3 should be pressed for 4 s to start the com missioning assistant via the heat generator dis play 3 For further steps see commissioning assistant in the following overview Commissioning via software tool Note Apps for commissioning and service are available for iOS and Android devices 1 Open the gas shut o...

Страница 31: ... for every flue bend C 7 Operating mode 4 Weather compensated 13 Constant operation with optional room thermostat 14 OpenTherm 15 Individual room control 16 Individual room control with modulation Note Operating modes 15 and 16 can only be set via the software tool C 8 System scheme depend ing on appliance type not all schemes possible 1 1 direct heating circuit without low loss header 3 1 direct ...

Страница 32: ...o the router see also page 26 Note If E10 is displayed the connection to the home net work could not be established Check the router and the network password If E12 is displayed the connection to the server could not be established Re establish the connection at a later time Activating the internet connection Operating instructions Affix a further credentials label here so it can be found for subs...

Страница 33: ...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 indicator must be in the green ba...

Страница 34: ...s sioning Tap the following buttons 1 and OK simultaneously for approx 4 s then release 2 Use to select b 5 for the commissioning assistant 3 OK 4 The display shows AP Press for 4 s 5 Use to select C 2 for ventilation 6 OK 7 should be used to select ON to switch on the ventilation 8 OK The venting function is activated The display shows a rotating rectangle The venting function ends automatically ...

Страница 35: ...trol unit and power supply connections When working on the appliance isolate the system from the power supply e g at a sepa rate MCB fuse or a mains isolator Check the system is no longer live and safeguard against reconnection Prior to working on the appliance wait at least 4 min until the voltage has completely dropped out 1 2x 2 3 Fig 23 Commissioning inspection maintenance Removing the front p...

Страница 36: ... are airlocks in the gas line Reset the appliance after approx 5 s see operat ing instructions 07 Measure the supply flow pressure For set val ues 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 measured value in the report Implement measures as indicated in the table below 09 Shut down the boil...

Страница 37: ... 59 457 Check the fan connecting ca bles Check the fan power supply Yes Ignition No Fault 359 Check ignition module con trol voltage 230 V across plug X1 54 terminals L and N on the HBMU Check the gas supply Yes Gas solenoid valve opens No Fault 357 Check the gas supply pres sure Yes Ionisation current builds No Fault 369 380 Check distance of ionisation electrode on burner gauze assembly Purge th...

Страница 38: ...llowing buttons 1 and OK simultaneously for approx 4 s then release 2 Use to select b 2 for system configura tion 3 OK 4 Use to select 7 for max heating output 5 OK 6 Use to set the required value in of rated heating output Delivered condition 100 100 HI on the display 7 OK Performing an actuator test The actuator test can only be set via the software tool Adjusting pump rate of integral circulati...

Страница 39: ...rate Max pump rate 19 40 100 25 40 100 In the following system conditions the internal circu lation pump is operated at a constant speed Constant operation Residual head of integral circulation pump Residual head 0 kPa 0 200 400 600 800 1000 Flow rate in l h 100 200 300 400 0 10 20 30 40 500 50 mbar 1200 100 300 500 700 900 1100 5 50 150 15 250 25 350 35 450 45 600 550 55 60 C D E F G H B A K L Fi...

Страница 40: ... the CO2 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 ...

Страница 41: ... Never touch the wiring chambers control unit and power supply connections When working on the appliance isolate the system from the power supply e g at a sepa rate MCB fuse or a mains isolator Check the system is no longer live and safeguard against reconnection Prior to working on the appliance wait at least 4 min until the voltage has completely dropped out A B C D E F 4x Fig 28 1 Turn off the ...

Страница 42: ...ation 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 assembly D and gasket E with Torx screw C Tighten screws as tightly as necessary and ensure that the components are undamaged and are func tioning correctly throughout service life Obs...

Страница 43: ... torque of 4 5 Nm Checking the back draught safety devices Only for multiple connection 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 31 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 devic...

Страница 44: ...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 or service life of the heat exchanger The use of chemical cleaning agents is not required A Fig 33 1 Use a vacuum cleaner to remove combustion resi dues...

Страница 45: ...se 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 with a constant fall Multi boil...

Страница 46: ...undamaged and are func tioning correctly throughout service life Observe torque settings if a torque wrench is avail able Check for gas tightness to BSI 6891 Torque 30 Nm 3 Check the gas connections 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 4 Conn...

Страница 47: ...xpansion 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 expansion vessel is ade quate for the system water volume Carry out this test on a cold system 1 Drain...

Страница 48: ...PCBs remain live even after the power supply has been switched off Never touch the wiring chambers control unit and power supply connections When working on the appliance isolate the system from the power supply e g at a sepa rate MCB fuse or a mains isolator Check the system is no longer live and safeguard against reconnection Prior to working on the appliance wait at least 4 min until the voltag...

Страница 49: ...m for leaks See page 40 Check the ionisation electrode and connecting cable See page 43 Note During commissioning the combustion controller car ries out an automatic calibration Allow approx 50 s after the burner has started before testing the emis sions A Fig 37 1 Connect a flue gas analyser at flue gas port A on the boiler flue connection 2 Open the gas shut off valve Start the boiler Cre ate a ...

Страница 50: ...ap the following buttons 1 2 Use to select P 3 for the heating curve 3 OK 4 Use to set the slope 5 OK 6 Use to set the level 7 OK to confirm Instructing the system user The system installer should hand the operating instruc tions to the system user and instruct the user in oper ating the system This includes all components installed as accessories e g remote control units In addition the system in...

Страница 51: ...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 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 While the appliance is being calibrated 4 Max speed of speed controlled p...

Страница 52: ...mpensated control units Setting Explanations If the outside temperature is above the threshold val ue selected set room temperature plus hysteresis in K the heating circuit pump is switched off If the outside temperature is above the threshold val ue selected set room temperature plus hysteresis in K the heating circuit pump is switched off 2426 2 Room temperature dependent heating circuit pump lo...

Страница 53: ...re tool Setting Explanations Operating mode heating circuit pump only for con stant operation 0 In Standby mode permanently switched off 1 24 In Standby mode started 1 to 24 times per day for 10 min each time System configuration parameters Parameters cont 6173886 Parameter ...

Страница 54: ...ture d 2 Heat generator flow temperature d 3 Primary pump speed d 4 Flue gas temperature d 5 Burner hours run d 6 Burner output d 7 3 way valve position 0 Heating 1 Middle position if installed 2 DHW d 8 Serial number of heat generator d 9 Heating circuit 1 flow temperature b 4 Message history b 5 Commissioning assistant b 6 Start upper lower heating output for test mode Note Tap to return to the ...

Страница 55: ...ents are installed in the system Note If a called up sensor is faulty appears on the display Calling up operating data Tap the following buttons 1 and OK simultaneously for approx 4 s then release 2 Use to select b 3 for diagnostics 3 OK 4 Use to select the required entry Note d 8 Use to view the heat generator serial number in sections 5 OK Diagnosis and service checks Diagnosis 6173886 Diagnosis...

Страница 56: ...he Er menu automatically acknowledges the fault display Calling up acknowledged fault messages Tap the following buttons 1 2 to select Er 3 OK 4 to call up fault entry E 1 to E 5 5 OK 6 to display the fault code Calling up fault messages from the fault memory message history The 5 most recent faults including those remedied are saved and can be called up Faults are sorted by date Tap the following...

Страница 57: ... Programming unit with TCU 100 communication module Fault messages Note For diagnosis and troubleshooting see chapter Repairs Fault messages dependent on appliance equipment level Troubleshooting Overview of electronics modules 6173886 Diagnosis ...

Страница 58: ...hort circuit outside tem perature sensor Check outside temperature sensor and connection to sensor terminal 4 Replace faulty components if necessary 49 Burner in a fault state Lead break flue gas tem perature sensor Check flue gas temperature sen sor Reset the appliance 50 Burner in a fault state Short circuit flue gas tem perature sensor Check flue gas temperature sen sor Reset the appliance 57 N...

Страница 59: ... pump Check function of 3 way diverter valve Vent the system Reset the appliance once the flue system has cooled down 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 burner gauze as sembly Check the electrode burne...

Страница 60: ...s type and flue system Reset the appliance 73 Burner in a fault state Internal communication error Reset the appliance If the fault occurs repeatedly re place the HBMU heat management unit See chapter Replacing the HBMU heat management unit 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...

Страница 61: ...n Error with communication module Check cables and plug in connec tions between heat management unit and communication module 103 Normal operation Internal communication error programming unit Check cables and plug in connec tions between heat management unit and HMI programming unit 104 Depending on configuration of EM EA1 extension DIO electronics module External fault message in put active Chec...

Страница 62: ...mit safety cut out Re place faulty component if required Reset the appliance 345 Burner locked out automatic enabling after appliance cool down Independent restart Temperature limiter has responded Ensure adequate heat transfer Check heating system fill level Check pre charge pressure in di aphragm expansion vessel Ad just to required system pressure Check whether flow rate is suffi cient pump Che...

Страница 63: ...gas supply Visually check the inlet strainer in the gas solenoid valve for dirt Reset the appliance 354 Burner in a fault state Gas modulation valve tol erance outside permissi ble range Replace gas fan unit 355 Burner in a fault state Analogue signal reference check Flame signal is al ready present at burner start Replace the HBMU heat manage ment unit See chapter Replacing the HBMU heat manageme...

Страница 64: ...stem for causes of the de posits For example Laundry de tergents cleaning agents toilet ries deposits in the ventilation air supply chimney Reset the appliance 365 Burner in a fault state Gas valve relay contact feedback implausible re lay contact is welded up Replace the HBMU heat manage ment unit 366 367 Burner in a fault state Gas valve electricity sup ply does not turn off Replace the HBMU hea...

Страница 65: ...ult state Heat transfer too low dur ing calibration Temperature limiter has shut down Ensure adequate heat transfer Check circulation pump for faults scale or blockages Check function of 3 way diverter valve Vent the system Check function of flow sensor Reset the appliance 377 Burner in a fault state Post processing ionisation current calibration Stabili sation conditions for post calibration not ...

Страница 66: ...re Replace gas fan if required Reset the appliance 385 Burner in a fault state Short circuit signal 1 ioni sation current HBMU heat management unit faulty Check IO electrode for earth fault If the fault persists replace the HBMU heat management unit Reset the appliance 386 Burner in a fault state HBMU heat management unit faulty Replace the HBMU heat manage ment unit See chapter Replacing the HBMU...

Страница 67: ...403 Burner in a fault state Ionisation electrode earth fault HBMU heat man agement unit faulty Check IO electrode for earth fault If the fault persists replace the HBMU heat management unit See chapter Replacing the HBMU heat management unit Reset the appliance 404 Burner in a fault state HBMU heat management unit faulty Replace the HBMU heat manage ment unit See chapter Replacing the HBMU heat ma...

Страница 68: ... See chap ter Replacing the HBMU heat management unit 454 Burner in a fault state Incorrect HBMU heat management unit parame ter set Flash correct HBMU heat manage ment unit parameter set 455 456 Burner in a fault state Error in program run moni toring Reset the appliance If the fault oc curs repeatedly replace the HBMU heat management unit See chap ter Replacing the HBMU heat management unit 457 ...

Страница 69: ... unit 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 extension 467 Burn...

Страница 70: ...e sensor not available lead break or short circuit Check system pressure sensor plug aND Check lead and plug in connec tion Measure the supply voltage to the sensor to see if it is 5 V 474 Burner in a fault state Error in scheduled pro gram run monitoring Reset the appliance If the fault occurs repeatedly re place the HBMU heat management unit See chapter Replacing the HBMU heat management unit 51...

Страница 71: ...ADIO rotary switch 545 Emergency function operat ing mode is activated for heating circuit 2 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 738 Normal operation OpenTherm remote con trol unit c...

Страница 72: ...moving the separate fuse or by means of a mains isolator and check that it is no longer live Safeguard the system against reconnection Disconnect the balanced flue system Drain the boiler on the heating water and DHW sides Disconnect the on site cables leads Removing the boiler from the pre plumbing jig or mounting frame 1 3 4 37 37 2 Fig 39 Troubleshooting Repairs cont 6173886 Diagnosis ...

Страница 73: ...ection fittings hold 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 Checking the temperature sensors C 2 1 4 3 1 3 2 4 B A Fig 40 Heat generator circuit flow temperature sensor dual sensor 1 Check the leads and plugs of flow temperature sensors A...

Страница 74: ...istance Compare the resist ance with the value for the current temperature from the following 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 ...

Страница 75: ...or 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 416 continues to be displayed although the flue gas temperature sensor is correctly positioned Initial commiss...

Страница 76: ...ing water return C Cold water D DHW 1 Shut off and drain the boiler on the heating water and DHW sides 2 Undo screws 3 Remove plate heat exchanger Note During and after removal small amounts of water may trickle from the plate heat exchanger 4 Remove gaskets and dispose of them 5 Check connections on the DHW side for scaling Clean or replace the plate heat exchanger as required 6 Check connections...

Страница 77: ...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 If components of the hydraulic unit have to be replaced Danger Risk of electric shock from escaping heating water or DHW After installation check all conn...

Страница 78: ...78 1 2 3 6 4 5 7 Fig 42 Troubleshooting Repairs cont 6173886 Diagnosis ...

Страница 79: ...wn 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 6173886 Diagnosis ...

Страница 80: ...ries 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 period of time The burner is switched off during the venting program Activate venting program See Commissioning inspection and maintenance Filling program In the delive...

Страница 81: ...top points of the heating cir cuit pumps depend on the Heating limit outside tem perature heating circuit setting 90 20 26 20 A C D E B Fig 45 Example 1 Changing the set room tempera ture from 20 to 26 C A 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 Changing the set room temperature Operating instructions Changin...

Страница 82: ...ff points Gas condensing system boiler If the set DHW temperature is set to over 60 C Gas condensing combi boiler If there are several draw off events in quick succession or several appliance calibration processes External heating circuit hook up if installed Note Only in conjunction with weather compensated opera tion Function If the external demand is active the heating circuit is supplied with ...

Страница 83: ...30 V 50 Hz B Vitotrol 100 type UTA C Vitotrol 100 type UTDB D Ignition unit ionisation E Fan motor control F Outlet temperature sensor combi boiler only lH Connection accessory 230 V a Ö Fan motor 230 V dG Gas solenoid valve gF Ignition unit Connection and wiring diagram HBMU heat management unit 6173886 Appendix ...

Страница 84: ... R P O N M L K H G Fig 48 A1 HBMU heat management unit A3 Programming unit with communication module X Electrical interfaces G Flow sensor combi boiler only Connection and wiring diagram HBMU heat management unit cont 6173886 Appendix ...

Страница 85: ...ler water temperature sensor M Internal circulation pump PWM N Stepper motor for diverter valve O Outside temperature sensor P Remote control OpenTherm controller R Cylinder temperature sensor system boiler only Connection and wiring diagram cont 6173886 Appendix ...

Страница 86: ...y Com mission ing 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 Settings and test values Set value Commission ing Maintenance service Maintenance service Date Signature Static pressure mbar kPa 57 5 5 75 Supply pressure flow pres sure For nat...

Страница 87: ... by vol See Check ing the com bustion qual ity Com mission ing 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 Commissioning service reports cont 6173886 Appendix ...

Страница 88: ...SO 15036 1 At partial load dB A 33 33 At rated heating output DHW heating dB A 52 53 Power consumption in the delivered condition W 45 64 Rated voltage V 230 Rated frequency Hz 50 Appliance fuse protection A 4 Backup fuse power supply A 16 Communication module integral WiFi frequency band MHz 2400 2483 5 Max transmission power dBm 20 Low power radio frequency band MHz 2400 2483 5 Max transmission ...

Страница 89: ...75 0 75 75 Permiss operating pressure bar MPa 3 0 3 3 0 3 Connections with connection accessories Boiler flow and return G Cold water and DHW G Dimensions Length mm 300 300 Width mm 400 400 Height mm 700 700 Gas connection R Supply values Relative to the max load and 1013 mbar 15 C Natural gas E m3 h 1 88 2 48 Natural gas LL m3 h 2 19 2 88 Flue gas parameters Temperature at a return temperature of...

Страница 90: ...se 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 LT LV MD ME MT NL NO PL PT RO RS RU SE SK TR UA UZ B23 B23P B33 C13 C33 C53 C63 C83 C83P C93 C43 C43P C 10 3 C 11 3 C 13 3 C 14 3 3 AU BE NZ B23 B23P B33 C13 C33 C53 C83 C83P C93 C43 C43P C 10 3 C 11 3 C 13 3 C 14...

Страница 91: ...lue that is between λ 1 2 and 1 5 This range provides for an optimum combustion quality Thereafter the electronic gas train regulates the required 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 syst...

Страница 92: ...the system are not part of ordi nary domestic waste For decommissioning 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 6173886 Appendix ...

Страница 93: ...rms of its design and operational characteristics Viessmann Cli mate Solutions SE D 35108 Allendorf hereby declares that the radio equipment type of the named product is in compliance 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 Certificates Declaration of conformity 6173886 Appendix ...

Страница 94: ... Gas supply pressure 36 Gas type 34 H Heating curve 50 80 Heating curve level 81 Heating curve slope 81 Heating output setting 38 Heating surface cleaning 44 Heating system venting 34 I Ignition 43 Ignition electrodes 43 Intended use 9 Internet connecting 32 Ionisation electrode 43 IP addressing 26 L Language selection 30 Leak test balanced flue system 40 M Mains isolator 35 41 48 Message history ...

Страница 95: ...of connected component 56 Supply pressure 36 37 System configuration 30 51 System filling 33 System pressure 33 System requirements 26 System schemes 50 T Trap 20 44 Type plate 9 V Venting function 34 Venting program 80 W WiFi connection 32 WiFi connection range 26 WiFi network 32 WiFi router 26 Wiring diagram 83 Keyword index Keyword index cont 6173886 ...

Страница 96: ...Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Climate Solutions SE 35108 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 6173886 Subject to technical modifications ...

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