Viessmann Vitodens 222-F Installation And Service Instructions Manual Download Page 41

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Fig. 33

Turn off the ON/OFF switch.

Close the gas shut-off valve and safeguard against
reopening.

Release the clips and remove the cover panel.

Disconnect cables and leads from:

■

Fan motor

Adaptor, CAN bus fan

■

Ionisation electrode

■

Ignition unit

■

Earth

Undo gas supply pipe fitting

Detach Venturi extension

from fan unit.

Undo 4 screws

and remove the burner.

Note

Cover gas connection

so that no small parts

can fall into it.

Commissioning, inspection, maintenance

Removing the burner

6130884

Summary of Contents for Vitodens 222-F

Page 1: ...ation and service instructions for contractors VIESMANN Vitodens 222 F Type B2TE 1 9 to 32 kW Gas condensing storage combi boiler Natural gas and LPG version VITODENS 222 F 6130884 GB 6 2019 Please ke...

Page 2: ...st unintentional reopening Isolate the system from the power supply e g by removing the separate fuse or by means of a mains isolator and check that it is no longer live Safeguard the system against r...

Page 3: ...an 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 a...

Page 4: ...king the CAN bus terminator switch setting 19 Power supply for accessories at plug lH aBH 230 V 20 Power supply f 22 WiFi operational reliability and system requirements 22 Routing connecting cables l...

Page 5: ...m 98 Filling program 98 Heating curve 98 Screed drying 100 Raising the reduced room temperature 102 DHW heating 103 Heating the DHW loading cylinder from cold 103 Reheating when DHW is drawn off 103 I...

Page 6: ...on 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...

Page 7: ...e associated nominal gas pressure are given on the boiler type plate The type plate also shows the other gas types and pressures with which the boiler can be operated A conversion within the stated na...

Page 8: ...onnections are located on the left hand side of the appliance When installing in recesses ensure that access is guaranteed Otherwise relocate the ON OFF switch and electrical connections accordingly T...

Page 9: ...eparing for boiler installation Use a connection set available as an accessory to make the connections on the gas and water sides The following overview shows sample connection sets for surface mounti...

Page 10: ...Heating flow R B DHW R C Gas connection R D Cold water R E Heating return R F DHW circulation R separate accessories G External plug H Condensate drain to the side K Area for electrical cables on sit...

Page 11: ...change the position of hose L used for ventilation 3 Route condensate hose M to side opening H see diagram on page 10 Connect condensate hose with a fall to the on site waste water pipe or trap Note T...

Page 12: ...gh guide N Safety assembly to DIN 1988 and EN 806 C F B D E GH D K D H L M D N K A O Fig 4 A Safety assembly to DIN 1988 and EN 806 acces sories for connection sets for flush mounting B Safety valve C...

Page 13: ...documentation with additional type plate and QR code for registering the appliance can be found on top of the appliance 2 In consultation with the system user affix the addi tional type plate to the...

Page 14: ...B D A B D E E D B A C C C E Fig 7 Shown with connection sets for surface mounting accessories A Heating flow R B DHW R C DHW circulation R separate accessories D Cold water R E Heating return R Insta...

Page 15: ...n conjunction with the Viessmann flue system made by Skoberne Do not carry out commissioning until the following conditions are met Free passage through the flue gas pipes Flue system with positive pr...

Page 16: ...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 tig...

Page 17: ...loads 3 1 2x 2 Fig 10 Note For further information on the connections see the fol lowing chapters A B C 6 5 4 3 2 1 6 5 4 3 2 1 1 M 1 M 5 40 156 156 P1 96 74 1 91 91 5 P2 Fig 11 Connections to 230 V...

Page 18: ...rve the sep arate installation instructions provided with them On site connections on HMU heat management unit 6 5 4 3 2 1 6 5 4 3 2 1 C Fig 12 C Plug located externally on the right or left hand side...

Page 19: ...ected Connect DHW circulation pump to output P2 The function is selected in the commissioning assistant by selecting the connected component Specification Rated current 1 A Rated voltage 230 V Floatin...

Page 20: ...ted Do not set switch A to ON A C C B B 91 91 ON Fig 17 Power supply for accessories at plug lH aBH 230 V When positioned in wet rooms accessories outside the wet area must not be connected to the pow...

Page 21: ...us 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 releva...

Page 22: ...latest firm ware update Do not use unencrypted connections between the heat generator and the WiFi router Internet connection with high availability Flat rate flat rate tariff without restriction on t...

Page 23: ...etration B A C Fig 20 A WiFi router B Heat generator C Wall Ideal angle of penetration C B A Fig 21 A WiFi router B Heat generator C Wall Routing connecting cables leads Please note If connecting cabl...

Page 24: ...24 1 3 2x 2 Fig 22 Fitting the front panel and programming unit 2 1 A Fig 23 Lightguide A at the bottom Installation sequence Closing the wiring chamber 6130884 Installation...

Page 25: ...ition and ionisation electrodes 43 21 Cleaning the heating surfaces 43 22 Checking the condensate drain and cleaning the trap 43 23 Installing the burner 45 24 Checking the neutralising system if inst...

Page 26: ...on steps Maintenance steps Page 40 Calling up and resetting the service display 53 41 Fitting the front panel 54 42 Instructing the system user 54 Commissioning inspection maintenance Steps commission...

Page 27: ...Turn on the ON OFF switch The commissioning assistant starts automati cally If the appliance has already been switched on See chapter Calling up the commissioning assistant at a later point 3 Commissi...

Page 28: ...connection Only one heat generator is connected to the flue system factory setting Multiple connections Several heat generators are connected to the flue system After confirmation with OK an automati...

Page 29: ...loss header or heating water buffer cylinder in the system Low loss header heating only System with low loss header without DHW heating DHW heating upstream of low loss header DHW heating with e g sep...

Page 30: ...lease wait If the flue gas temperature sensor is not positioned correctly fault message F 416 appears on the display For further details regarding the flue gas temperature sensor test see Repairs If f...

Page 31: ...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 small softening system for hea...

Page 32: ...imultaneously for approx 4 s then release 2 Use to select Basic settings 3 OK 4 Use to select Commissioning assistant 5 OK 6 for Next and OK until Filling appears 7 OK The filling function is activate...

Page 33: ...he venting function If the venting function is to be activated after commis sioning Tap the following buttons 1 and OK press simultaneously for approx 4 s then release 2 Use to select Basic settings 3...

Page 34: ...rs the heating circuits can be renamed to suit the specific system To enter names for heating circuits Operating instructions Checking the gas type The boiler is equipped with an electronic combustion...

Page 35: ...ment Vent the tank and gas connection line thoroughly after purging 01 Close the gas shut off valve 02 Undo clips and remove cover panel A 03 Undo screw in test connector B on the gas train but do not...

Page 36: ...3 3 kPa 16 to 33 mbar 1 6 to 3 3 kPa 25 to 57 5 mbar 2 5 to 5 75 kPa Start the boiler Above 33 mbar 3 3 kPa Above 33 mbar 3 3 kPa Above 33 mbar 3 3 kPa Above 33 mbar 3 3 kPa Above 57 5 mbar 5 75 kPa I...

Page 37: ...recirculation if re quired Reset device Operating instructions For further details regarding faults see page Trouble shooting Setting the max heating output A limit can be set on the maximum heating o...

Page 38: ...d 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 Mi...

Page 39: ...0 400 600 800 1000 Flow rate in l h 100 200 300 400 0 10 20 30 40 500 50 mbar 100 300 500 700 900 1100 5 50 150 15 250 25 350 35 450 45 550 55 1200 600 60 650 65 700 70 A B C D M K L H E F G Fig 31 M...

Page 40: ...out during system commissioning For this check the CO2 or O2 concentration in the combus tion air at the annular gap of the balanced flue pipe If the CO2 concentration is less than 0 2 or the O2 conc...

Page 41: ...l 4 Disconnect cables and leads from Fan motor A Adaptor CAN bus fan Ionisation electrode B Ignition unit C Earth D 5 Undo gas supply pipe fitting E 6 Detach Venturi extension F from fan unit 7 Undo 4...

Page 42: ...ket E 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...

Page 43: ...he coils Never 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...

Page 44: ...the drain hose with the hose clip 8 Check that connections on the trap and the heat exchanger are seated correctly Note Route the drain hose without any bends and with a constant fall 9 Flush the hea...

Page 45: ...it 4 Fit gas supply pipe E with a new gasket Torque 30 Nm 5 Check the gas connections for leaks Danger Escaping gas leads to a risk of explosion Check the fitting for gas tightness 6 Connect the cable...

Page 46: ...esign up to 26 kW 2 Remove earth cable B from tab C 3 Connect tester up to 5 mA in series between tab C and earth cable B If the current measures 0 3 mA the protective magnesium anode is OK If the cur...

Page 47: ...ance excluding the DHW cylinder is drained via the cold water connection Lever position C The DHW circuit in the appli ance and the DHW cylinder are drained via the hot water connection The cold water...

Page 48: ...re cleaner Please note Do not damage the cylinder Only use plastic cleaning equipment to clean the inside Never use cleaning agents containing hydrochloric acid 5 Thoroughly flush the loading cylinder...

Page 49: ...lange cover B 3 Fit flange cover B and tighten 8 screws D with a maximum torque of 25 Nm 4 Push earth cable C onto the tab 5 Fit cover E two part design up to 26 kW 6 Fill the loading cylinder with po...

Page 50: ...connection A until the pre charge pressure is 0 1 to 0 2 bar 10 to 20 kPa higher than the static system pressure 3 Top up with water until the charge pressure of the cooled system is 0 1 to 0 2 bar 10...

Page 51: ...ion Check gas equipment including inside the appli ance for gas tightness Note Only use suitable and approved leak detection agents EN 14291 and devices for the tightness test Leak detection agents wi...

Page 52: ...port A on 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 act...

Page 53: ...control unit must be matched to the system equip ment level Set the parameters according to the accessories fitted Accessories installation and service instructions Adjusting heating curves Tap the f...

Page 54: ...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...

Page 55: ...required group 5 OK 6 Use to select the parameter to be set See tables below 7 OK 8 for the required value 9 OK General Note Parameter values in bold are factory settings 508 0 UTC time zone Setting E...

Page 56: ...er 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 Ex...

Page 57: ...nations 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...

Page 58: ...e maximum heating output for DHW heating 100 Heating output in the delivered condition 100 0 to 100 Adjustable from 0 to 100 1100 2 Set speed of the primary circuit pump in heating mode Setting Explan...

Page 59: ...0 has been set to 1 20 Factory setting 20 K x min 5 to 255 Adjustable from 5 to 255 20 K x min The higher the value the later the burner switches off 1606 0 Minimum burner pause time Setting Explanati...

Page 60: ...to 100 Set speed adjustable from 20 to 100 Heating circuit 1 Heating circuit 2 Heating circuit 3 Heating circuit 4 Note Parameter values in bold are factory settings 424 3 Set flow temperature increas...

Page 61: ...en 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...

Page 62: ...table differential temperature See also chapter Function description 8 K 8 Differential temperature in delivered condition 8 K 0 to 20 Differential temperature adjustable from 0 to 20 K 934 6 Operatin...

Page 63: ...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 must be set for the heating cir cuit paramete...

Page 64: ...nge limited by heat generator specific pa rameters 1193 1 Maximum flow temperature limit heating circuit 2 Setting Explanations Maximum flow temperature limit for the heating circuit 74 C 74 Maximum l...

Page 65: ...a ture 1 K below selected value 25 C 25 Delivered condition Heating limit at outside tempera ture 25 C 10 to 35 Temperature limit adjustable from 10 to 35 C in 1 C increments 1397 0 Heating limit Econ...

Page 66: ...cuit 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 sy...

Page 67: ...ge history Basic settings Factory settings Commissioning assistant Appliances detected Exit trade fair mode Note Tap to return to Service main menu Diagnosis Checking operating data Operating data can...

Page 68: ...nute Burner modulation set value Off Minimum heating out put Maximum heating out put Maximum DHW output Modulation level in accordance with specific heat generator settings 3 way valve target posi tio...

Page 69: ...rculation pump in 3 way valve target posi tion Heating Diverter valve set to heating mode Middle Diverter valve in central position filling draining DHW Diverter valve set to DHW heating Cylinder load...

Page 70: ...dge all fault messages Note Service messages are also acknowledged Note Any connected central fault message facility is switched off If an acknowledged fault is not remedied the fault message will be...

Page 71: ...approx 4 s then release 2 for Message history 3 OK 4 Use to select the required category Faults to call up saved fault messages Service messages to call up saved service messages P 1 Interval until t...

Page 72: ...Message history 3 OK 4 Use to select Delete messages 5 OK 6 OK to confirm the message Overview of electronics modules C A B Fig 48 A HMI programming unit B BCU burner control unit C HMU heat managemen...

Page 73: ...fault state Flue gas temperature sen sor disconnection Check flue gas temperature sensor see page 91 Reset the appliance F 50 Burner in a fault state Short circuit flue gas tem perature sensor Check f...

Page 74: ...set the appliance F 74 Burner locked out Internal circulation pump off No central heating and no DHW heating System pressure too low Top up with water F 77 Burner in a fault state Data memory burner c...

Page 75: ...off and on again Reset the appliance F 182 No DHW heating Short circuit outlet tem perature sensor Check outlet temperature sensor see page 91 F 183 No DHW heating Lead break outlet temper ature sens...

Page 76: ...system for flue gas back pressure F 350 Burner in a fault state Ionisation voltage lies out side the permissible range Check ionisation electrode and connecting cable Reset the appliance F 351 Burner...

Page 77: ...ner in a fault state No ignition spark Check connection cables and leads from ignition module and ig nition electrode Check for a voltage of 230 V at the ignition module during the igni tion phase Che...

Page 78: ...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...

Page 79: ...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 t...

Page 80: ...sually inspect gas train inlet and strainer on the inlet side for con tamination Note To prevent water damage detach fan unit before removing the burn er Note Deposits on the electrodes indicate forei...

Page 81: ...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 el...

Page 82: ...4 Burner in a fault state Gas valve does not close Check the gas train replace if nec essary Reset the appliance F 385 Burner in a fault state Short circuit signal 1 ioni sation current Check ionisati...

Page 83: ...on pump Vent the system Reset the appliance F 408 Burner in a fault state Gas valve monitoring re lay 1 has responded Reset the appliance F 410 Burner in a fault state Internal error processor BCU bur...

Page 84: ...cs module F 444 Burner locked out Short circuit LPG safety valve solenoid valve sig nal at EM EA1 extension DIO electronics module Check solenoid valve connection at EM EA1 extension DIO elec tronics...

Page 85: ...e LPG safety valve sole noid valve at EM EA1 ex tension does not open DIO electronics module Check solenoid valve connection at EM EA1 extension DIO elec tronics module Reset the appliance F 463 Burne...

Page 86: ...s 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 vent...

Page 87: ...nagement 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 app...

Page 88: ...r for remote control unit F 575 Control mode without room influence Lead break room temper ature sensor heating cir cuit 1 Check external room temperature sensor for heating circuit or room temperatur...

Page 89: ...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 pipew...

Page 90: ...heating water side 2 Connect hose to air vent valve A and route it into a suitable container or drain outlet 3 By means of an actuator test move the 3 way valve to its centre position 4 Open air vent...

Page 91: ...ition of guide 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 dev...

Page 92: ...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 w...

Page 93: ...he 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 sw...

Page 94: ...nce position see page 27 3 Undo the fixing screws 4 Detach the plate heat exchanger and remove towards the front 5 Check the connections on the heating water and DHW sides for contamination and scalin...

Page 95: ...95 Removing the hydraulic unit and return pipe In case hydraulic unit components have to be replaced 3x 5 4 2 3x 1 3 Fig 52 Troubleshooting Repairs cont 6130884 Service...

Page 96: ...B 2 5 Fig 53 Note After replacing the return pipe use a new cable tie Replacing the power cable When replacing the power cable only use the power cable available as a spare part from Viessmann Trouble...

Page 97: ...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 withou...

Page 98: ...missioning inspection and maintenance Filling program In the delivered condition the diverter valve is set to its central position so the system can be filled completely After the control unit has bee...

Page 99: ...e Heating limit outside tem perature heating circuit setting 90 20 26 20 A C D E B Fig 56 Example 1 Adjusting the set room tempera ture from 20 to 26 C A Flow temperature in C B Outside temperature in...

Page 100: ...re via heating curve value 20 18 x 1 1 4 x 8 4 9 6 Increase in flow temperature via heating curve value 9 6 K Screed drying When enabling screed drying observe the information provided by the screed m...

Page 101: ...Flow temperature C Days 50 40 30 20 10 1 5 10 15 20 25 30 Fig 60 Temperature profile 3 Flow temperature C Days 50 40 30 20 10 1 5 10 15 20 25 30 Fig 61 Temperature profile 4 Flow temperature C Days 50...

Page 102: ...t 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 set in parameter...

Page 103: ...efaulted set value The cylinder loading pump is switched ON if the boiler water temperature set cylinder temperature The burner is switched ON if the boiler water temper ature set cylinder temperature...

Page 104: ...d DHW hygiene The DHW can be heated to a specified higher set DHW temperature approx 70 C for a period of one hour Danger Risk of injury due to increased DHW tempera ture Inform the system user of the...

Page 105: ...ing unit with RF module wireless module A3 Switching mode power supply X Electrical interfaces Outside temperature sensor Cylinder temperature sensor f Power supply jF PlusBus lA CAN bus Connection an...

Page 106: ...P1 Cylinder loading pump P2 Parametrisable output for DHW circulation pump or Circulation pump for heating circuit without mixer A To BCU burner control unit B To BCU burner control unit Connection a...

Page 107: ...or s Internal circulation pump primary pump d 3 way diverter valve dG Gas solenoid valve f Power supply gF Ignition unit a Fan motor a A Fan motor control aND Water pressure sensor aNDA Water pressure...

Page 108: ...bon 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 u...

Page 109: ...essure table com missioning Page 36 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 transm...

Page 110: ...2 29 2 71 Flue gas values Mass flow rate for DHW heating Natural gas g s 40 4 54 2 62 1 LPG g s 39 8 53 2 61 1 Temperature for DHW heating C 67 72 77 Max temperature C 120 120 120 Note The supply valu...

Page 111: ...ler The air ratio is regulated to a value that is between 1 2 and 1 5 This range provides for an optimum combustion quality Thereafter the electronic gas train regulates the required gas volume subjec...

Page 112: ...stem 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 dispos...

Page 113: ...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 t...

Page 114: ...IP addressing 22 E Electronic combustion controller 111 F Fault codes 73 Fault message calling up 70 Fault messages Display 70 Faults Display 70 Filling function 32 98 Fill water 31 Flow pressure 36...

Page 115: ...ing 60 Parameters 55 Adjusting 55 Calling up 55 Groups 55 Setting local time 55 Parameters for commissioning 53 Plate heat exchanger 94 Port 123 22 Port 443 22 Port 80 22 Port 8883 22 Protective anode...

Page 116: ...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...

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Viessmann Vitodens 222-F, Installation And Service Instructions Manual

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