Viessmann B1GA Installation And Service Instructions Manual Download Page 14 | Manualshive

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Note
This boiler (IP rating: IP X4) is approved for installation
in wet rooms inside safety zone 1, to DIN VDE 0100.
Exposure to jets of water must be prevented.
For open flue operation, the boiler may only be oper-
ated with a splash cover.
Observe the requirements of DIN VDE 0100.

Preparing for installation

Dimensions and connections

(cont.)

6174240

Installation

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Summary of Contents for B1GA

Page 1: ...tions for contractors VIESMANN Vitodens 100 W Type B1GA 3 2 to 25 kW Wall mounted gas condensing boiler Natural gas version Gas Council No B1GA 41 819 52 41 819 53 41 819 54 41 819 55 VITODENS 100 W 6174240 GB 6 2021 Please keep safe ...

Page 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...

Page 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...

Page 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...

Page 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 6174240 ...

Page 6: ...tions 23 On site connections on the HBMU heat management unit 24 Outside temperature sensor 24 Power supply fÖ 24 Routing connecting cables leads 25 Closing the wiring chamber 25 Fitting the front panel 26 5 Commissioning inspec tion maintenance Steps commissioning inspection and maintenance 27 6 System configuration parameters Calling up parameters 42 Parameter 42 Energy saving functions setting ...

Page 7: ... and wiring dia gram HBMU heat management unit 68 11 Commissioning service reports 71 12 Specification Gas condensing boiler 73 Flue system types 75 Gas categories 75 Electronic combustion control unit 75 13 Disposal Final decommissioning and disposal 76 14 Certificates Declaration of conformity 77 15 Keyword index 78 Index Index cont 6174240 ...

Page 8: ... elec tromagnetic oven or microwave Do not remove any sealed parts from the appliance Do not use caustic cleaning agents to clean the appliance The appliance must not be installed in bedrooms liv ing rooms or bathrooms Ensure that the appliance is not operated by children or other persons who do not use it Ensure that chil dren do not play with the appliance The overheating safety valve and the ho...

Page 9: ...k Monday 1 Tuesday 2 etc Example 0501255 corresponds to date of manufacture 27 January 2015 Disposal of packaging Please dispose of packaging waste in line with statu tory regulations Gas Council No Type Gas Council Number Vitodens 100 W B1GA 11 kW 41 819 52 Vitodens 100 W B1GA 16 kW 41 819 53 Vitodens 100 W B1GA 19 kW 41 819 54 Vitodens 100 W B1GA 25 kW 41 819 55 Information Key to date of manufa...

Page 10: ...ired during maintenance Intended use The appliance is intended solely for installation and operation in open vented and sealed unvented heating systems that comply with EN 12828 as well as CN CECS215 2017 and CE CS215 2017 with due attention paid to the associated installation service and operating instructions It is only designed for heat ing up heating water that is of potable water quality Inte...

Page 11: ...direct access to product specific information and product registration on the internet The access code contains the credentials for the regis tration and product information portal and the 16 digit serial number Note A further label with the access code is enclosed with the heat generator Stick the label in the installation and service instruc tions so it can be easily found again for later use Th...

Page 12: ...12 Information about spare parts can be found at www viessmann com etapp or in the Viessmann spare part app Information Spare parts lists 6174240 Information ...

Page 13: ...37 Ø 66 Ø 95 0 5 0 8 B 97 143 E 48 98 D 161 Fig 3 A Condensate drain B Gas connection C Dimension for siting with DHW cylinder below the boiler D Heating flow E Heating return Preparing for installation Dimensions and connections 6174240 Installation ...

Page 14: ... inside safety zone 1 to DIN VDE 0100 Exposure to jets of water must be prevented For open flue operation the boiler may only be oper ated with a splash cover Observe the requirements of DIN VDE 0100 Preparing for installation Dimensions and connections cont 6174240 Installation ...

Page 15: ...3 2 Fig 4 Fitting the wall mounting bracket Installation template 1 Position the supplied installation template on the wall Preparing for installation Removing the boiler from the packaging 6174240 Installation ...

Page 16: ... bricks Hollow concrete breeze blocks Hollow brick and concrete ceilings Perforated sand lime bricks Solid sand lime bricks Natural stone with dense structure Porous concrete Solid gypsum panels Solid concrete breeze blocks Solid bricks 4 Fit the wall mounting bracket with the screws sup plied Preparing for installation Fitting the wall mounting bracket cont 6174240 Installation ...

Page 17: ...gas connection according to TRGI or TRF or local regulations 3 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 max 16 A Accessory cables 0 75 mm2 flexible PVC cable with required number of cores for external con nections Access...

Page 18: ...skets Gas connection Ø 18 5 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 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 Fitting the boiler to the wall mounting bracket 617...

Page 19: ...ng 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 1 turn beyond finger tight Connections on the heating water side If the connections have not been fitted previously make the connections on the heating water side A B Fig 7 A Heating flow Ø 22 mm male thread B Heat...

Page 20: ...ising sys tem Note Route the onward drain line inside the building as far as possible If the onward drain line is routed outside the build ing Use a min Ø 30 mm line Protect the line from frost Keep the line as short as possible 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 N...

Page 21: ...rne 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 Gas connection A Fig 11 1 If the gas connection has not been fitted previ ously seal gas shut off valve A to the gas con nection When carrying out any work on ...

Page 22: ...fter 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 required for leak tests disconnect the boiler and the gas solenoid valve from the main supply pipe undo the fitting 3 Purge the gas line Electrical connections Opening the wiring chamber 1 3 2 4x Fig 12 Please note Electronic assemblies can be dam...

Page 23: ...rable floating input lH 230 V 230 V output 230 V room thermostat connection a Ö Fan motor dG Gas solenoid valve gF Ignition unit ionisation sA Circulation pump C Remove jumper when connecting an accessory D Connection for external circulation pump E Outside temperature sensor XsÖ Equipotential bonding earth conductor Note on connecting accessories When connecting accessories observe the sep arate ...

Page 24: ...xecuted electrical installations can result in injuries from electrical current and dam age to the appliance Connect the power supply and implement all safety measures e g RCD circuit in accord ance with the following regulations IEC 60364 4 41 IEEE Wiring Regulation BS 7671 2018 Connection conditions of the local grid opera tor Install an isolator in the power cable to provide omnipolar separatio...

Page 25: ...with fitted diaphragm grommets Fig 15 Bundle cables using the 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 leads over sharp edges and lying against the casing sound transmission Please note If connecting cables leads come into contact with hot components they will...

Page 26: ...26 1 2 Fig 17 Installation sequence Fitting the front panel 6174240 Installation ...

Page 27: ...ng the burner gasket and burner gauze assembly 35 14 Checking and adjusting the ignition and ionisation electrodes 36 15 Cleaning the heating surfaces 36 16 Checking the condensate drain and cleaning the trap 37 17 Installing the burner 38 18 Checking the neutralising system if installed 19 Checking the electrical connections for firm seating 39 20 Checking all gas equipment for leaks at operating...

Page 28: ...e 2 AP and appear on the display Press OK to carry out commissioning with the soft ware tool 3 Select ON and confirm with OK 4 Follow the instructions in the software tool Commissioning assistant sequence Explanations and references Commissioning C 3 Gas type 2 Natural gas CPG C 5 Flue system 1 Open flue 60 mm 2 Room sealed 60 100 mm 3 Open flue 80 125 mm 4 Room sealed 80 125 mm C 6 Flue length Gi...

Page 29: ... 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 over 300 ppm must be softened e g with a small softening system for heating water Checking all connections on the heating water and DHW sides for leaks Danger Risk of electric shock from escaping heating water or DHW When commissioning...

Page 30: ...from electric current Some compo nents on 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 appl...

Page 31: ...o check the supply pressure 08 Record the measured 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 10 Open the gas shut off valve and start the appli ance Danger Gas escaping from the test connector leads to a risk of explosion Check gas tightness at test conn...

Page 32: ...rode on burner gauze assembly Purge the gas line Yes Burner in operation No Shuts down below the set boiler water temperature and restarts immediately Check the flue system for tightness flue gas recircula tion Check gas flow pres sure Yes Automatic calibration of the combustion controller No Fault 62 373 Ensure adequate heat trans fer Reset the appliance Fault 346 377 Check gap between ionisa tio...

Page 33: ...heck A Fig 20 A Combustion air aperture For balanced flue systems tested together with the heat generator there is no requirement for a tightness test overpressure test during commissioning by the flue gas inspector In this case we recommend that a simple tightness test is carried out during system commissioning For this check the CO2 or O2 concentration in the combus tion air at the annular gap o...

Page 34: ...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 F 4x D C B A E Fig 21 1 Turn off the ON OFF switch 2 Close the gas shut off valve and safeguard against reopening 3 Disconnect cables and leads from Fan motor A 2 plugs Ionisation electrode B Ignition unit C Earth D 4 Undo gas supply pipe fi...

Page 35: ...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...

Page 36: ... come into contact with hot gas can result in corrosion damage Brushing can cause deposits to become lodged in the gaps between the coils Do not 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 f...

Page 37: ...Fill the trap with water 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 ...

Page 38: ...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...

Page 39: ...tness 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 26 Checking the combustion quality The electronic combustion controller automatically ensures optimum combustion quality During commis sioning maintenance only the combustion values need to be chec...

Page 40: ...owing chapter 7 Check the CO2 content If the actual value deviates from the permissible ranges by more than 1 implement steps listed above 8 Enter the actual value into the report 9 Re seal test port A Danger Escaping flue gas can damage your health Check test port A for leaks Regulating to the upper lower heating output Note Ensure adequate heat transfer Tap the following buttons 1 and OK simulta...

Page 41: ... 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 instal ler must make the user aware of the required mainte nance work Commissioning inspection maintenance Adjusting the heating curves 6174240 ...

Page 42: ...ted to a maxi mum value Off 0 Scald protection off 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 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 appli...

Page 43: ...cuit pump logic function only for weather compensated 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 below the threshold value selected set room temperature plus hysteresis in K the heating circuit pump is switched on 1667 0 Pump act...

Page 44: ...ature b 4 Message history b 5 Commissioning assistant b 6 Start upper lower heating output for test mode Note Tap to return to the service menu Exiting the service menu Tap the following buttons several times Note The system exits the service menu automatically after 30 min Diagnosis Checking operating data Operating data can be checked in various areas See Diagnosis in the service menu overview O...

Page 45: ...45 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 cont 6174240 Diagnosis ...

Page 46: ... the 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 followi...

Page 47: ...ture sensor Check the DHW setting in the commissioning assistant and cor rect if necessary Check the cylinder temperature sensor terminal 2 Measure voltage at sensor input on HBMU heat management unit Set value 3 3 V with sen sor disconnected Replace faulty component if neces sary 8 No DHW heating Short circuit cylinder tem perature sensor Check the cylinder temperature sensor terminal 2 Replace f...

Page 48: ...nce 57 Normal operation without room influence Lead break room temper ature sensor Check commissioning setting of remote control Check plug and cable of external room temperature sensor heat ing circuit If no external room temperature sensor installed replace Vitotrol programming unit 58 Normal operation without room influence Short circuit room tem perature sensor Check plug and cable of external...

Page 49: ...ner start Close the gas shut off valve Re move connecting cable of the ioni sation electrode Reset the appli ance If the fault persists replace the HBMU heat management unit See chapter Replacing the HBMU heat management unit 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 elec...

Page 50: ...ed Check circulation pump Replace if necessary 91 Function of affected exten sion in emergency mode DIO electronics module communication error Check connections to DIO elec tronics module and connection to HBMU heat management unit 92 Function of the relevant elec tronics module in emergency mode ADIO electronics module communication error Check the setting in the commis sioning assistant and corr...

Page 51: ...occurs repeatedly re place the HBMU heat management unit See chapter Replacing the HBMU heat management unit 163 Burner in a fault state Checksum error data memory access HBMU heat management unit Reset the appliance If the fault occurs repeatedly re place the HBMU heat management unit See chapter Replacing the HBMU heat management unit 182 No DHW heating Short circuit outlet tem perature sensor i...

Page 52: ...set the appliance 348 Burner in a fault state Gas modulation valve If several heat generators are con nected to a common flue system Check whether Multiple connec tions is set in the commissioning assistant Check the flue system for unre stricted flow If fault remains replace gas fan unit 349 Burner in a fault state Air mass rate flow not de tected correctly in fan unit Check for dust contaminatio...

Page 53: ...ressure Check that on site gas line and gas flow switch are correctly sized Note If the building pressure regulator has a leak you may notice rising pressure when the burner is idle When the system is restarted the gas flow switch may trip If the static pressure doesn t drop check cable to the fan unit Check that the coil resistance at the fuel valve is approx 4 kΩ plug 35 Check the ignition elect...

Page 54: ...edback 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 heat manage ment unit See chapter Replacing the HBMU heat management unit 369 Burner in a fault state Flame is lost immediately after flame formation dur ing safety time Check gas supply gas pressure and gas flow swit...

Page 55: ...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 ...

Page 56: ...Replace the gas fan if necessary 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 HB...

Page 57: ...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...

Page 58: ...e 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 Bur...

Page 59: ...t 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 Bur...

Page 60: ...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...

Page 61: ... 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 conne...

Page 62: ...er side Disconnect the on site cables leads Removing the boiler from the pre plumbing jig Fig 29 Note When assembling use new gaskets and if necessary new locking ring fittings Gas connection Ø 18 5 mm Gaskets and locking ring connections are available as individual parts if required Note When carrying out any work on gas connection fittings hold with a suitable tool Never transfer any forces to t...

Page 63: ...ons 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 shock from escaping heating water Check the dual sensor ...

Page 64: ...ct leads flue gas temperature sensor C 7 If the permissible flue gas temperature has been exceeded the flue gas temperature sensor locks out the appliance Reset the burner on the pro gramming unit once the flue system has cooled down Flue gas temperature sensor Flow temperature sensor Outlet temperature sensor Outside temperature sensor 10 1 10 Temperature in C 0 4 0 6 0 8 2 4 6 8 Resistance in kΩ...

Page 65: ...ual 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 fuse 2 F1 4 3 1 B Fig 31 1 Turn off the ON OFF switch B 2 Remove the programming unit 3 Pivot the HBMU he...

Page 66: ...n is active Constant operation without room thermostat The rooms are heated according to the set flow tem perature settings Heating curve The heating curves represent the relationship between the outside temperature and the flow temperature Simplified The lower the outside temperature the higher the flow temperature must be in order to reach the set room temperature Factory settings Slope 1 4 Leve...

Page 67: ... A B Boiler water or flow temperature in C 90 20 20 Outside temperature in C 3 5 1 4 0 2 Fig 34 A Changing the slope B Changing the level vertical parallel offset of the heating curve External heating circuit hook up if installed Note Only in conjunction with weather compensated mode Function If the external demand is active the heating circuit is supplied with heat If the external demand is inact...

Page 68: ...C Vitotrol 100 type UTA D External connection for 230 V circulation pump E Ignition ionisation F Fan control G Cylinder demand junction box Jumper remove when making this connection lH 230 V connection accessories for accessories sÖ No function a Ö 230 V fan motor Connection and wiring diagram HBMU heat management unit 6174240 Appendix ...

Page 69: ...69 dG Gas solenoid valve fÖ Mains input sA Heating circuit pump Connection and wiring diagram HBMU heat management unit cont 6174240 Appendix ...

Page 70: ...U heat management unit A3 Programming unit X Electrical interfaces H Flow switch K Flue gas temperature sensor L Boiler water temperature sensor M Outside temperature sensor Connection and wiring diagram cont 6174240 Appendix ...

Page 71: ...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...

Page 72: ... 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 6174240 Appendix ...

Page 73: ...ered condition W 38 42 45 64 110 Rated voltage V 230 Rated frequency Hz 50 Appliance fuse protection A 4 0 Backup fuse power supply A 16 Electronic temperature limiter setting TN C 91 Electronic temperature cut out setting C 110 Permissible ambient temperature During operation C 5 to 40 During storage and transport C 5 to 60 Weight Excl heating water and packaging kg 23 23 23 23 26 Incl heating wa...

Page 74: ...a return temperature of 60 C for DHW heating C 64 64 65 67 72 Available draught Pa 250 250 250 250 250 mbar 2 5 2 5 2 5 2 5 2 5 Available draught for B23P Pa 232 400 527 698 635 mbar 2 32 4 5 27 6 98 6 35 Max amount of condensate To DWA A 251 l h 2 5 2 5 2 5 3 3 4 2 Condensate connection hose nozzle Ø mm 20 24 21 24 20 24 20 24 20 24 Flue gas connection Ø mm 60 60 60 60 60 Ventilation air connecti...

Page 75: ...en 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 system regularly carr...

Page 76: ...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 6174240 Appendix ...

Page 77: ...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 6174240 Appendix ...

Page 78: ...slope 67 Heating output setting 33 Heating surface cleaning 36 Heating system venting 29 Heating water side connections 19 I Ignition 36 Ignition electrodes 36 Installation preparation 13 Intended use 10 Ionisation electrode 36 L Language selection 28 Leak test balanced flue system 33 M Mains isolator 30 34 39 Message history 46 O Operating conditions checking 44 Operating data calling up 44 Opera...

Page 79: ...79 6174240 ...

Page 80: ...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 6174240 Subject to technical modifications ...

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