Viessmann B23 Installation And Service Instructions Manual Download Page 23

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Please note

If connecting cables/leads come into contact
with hot components, they will be damaged.
When routing and securing cables/leads on site,
ensure that the maximum permissible tempera-
ture for these is not exceeded.

Fig. 17

Main PCB

Strain relief fittings

Connecting cables

Cable entry

Installation sequence

Routing connecting cables/leads

6136330

Installation

Summary of Contents for B23

Page 1: ...llation and service instructions for contractors VIESMANN Vitoladens 300 C Type BC3 12 9 to 28 9 kW Oil condensing boiler with integral boiler control unit VITOLADENS 300 C 6136330 GB 7 2019 Please keep safe ...

Page 2: ... 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 system Isolate the system from the power sup ...

Page 3: ...ng system Ventilate the installation site Close the doors to living spaces to prevent flue gases from spread ing What to do if water escapes from the appliance Danger If water escapes from the appliance there is a risk of electric shock Switch OFF the heating system at the external isolator e g fuse box domestic distribution board Danger If water escapes from the appliance there is a risk of scald...

Page 4: ...t the same time this can lead to a reverse flow of flue gas Danger The simultaneous operation of the boiler and appliances that extract 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 6136330 ...

Page 5: ...connecting cables leads 23 Inserting cables and applying strain relief 24 Electrical connections 24 Connecting the pumps 26 Outside temperature sensor 26 Connecting the Vitoconnect 100 connecting cable accessories 27 Connection of accessories 28 Closing the control unit enclosure 28 Connecting the fire safety switch for a only 29 Fitting the panels and connecting the programming unit 30 4 Commissi...

Page 6: ... DHW heating 90 External extension 91 EA1 extension 91 Control functions 92 External operating program changeover 92 External blocking 93 External demand 93 Screed drying 94 Raising the reduced room temperature 95 Reducing the heat up time 96 Assigning heating circuits to the remote control 97 9 Connection and wiring dia gram 98 10 Commissioning service reports 103 11 Specification 104 12 Disposal...

Page 7: ...ion and identified as follows Symbol Meaning Steps required during commissioning Not required during commissioning Steps required during inspection Not required during inspection Steps required during maintenance Not required during maintenance Intended use The appliance is intended solely for installation and operation in sealed unvented heating systems that comply with EN 12828 with due attentio...

Page 8: ... dust mask to protect your respiratory tract Wear suitable safety gloves Danger During maintenance and cleaning combustion residues pose a danger to the respiratory tract Wear a dust mask to protect your respiratory tract Note Observe the country specific regulations on the dis posal of any materials and waste Note Before restarting the heating system return any removed components and cables to th...

Page 9: ...E Flue gas connection F Connection for expansion vessel tee Rp G Boiler fill valve H Heating return Flat gasket connection G 1 Connection with the threaded inserts supplied Rp 1 K Heating flow Flat gasket connection G 1 Connection with the threaded inserts supplied Rp 1 L Cylinder flow and heating flow G 1 M Cylinder return and heating return G 1 Preparing for installation Preparing for installati...

Page 10: ...filter Single line filter magnum filter bowl with large fil ter element filter grade max 40 µm with auto matic fuel oil air vent valve see page 21 Fit the filter as near as possible to the lower edge of the left side panel to leave the flexible oil lines long enough to enable removal of the burner 3 Prepare the electrical connections Power cable sheathed cable NYM J 3 x 1 5 mm2 max fuse rating 16 ...

Page 11: ...ficult handling conditions If required for easier handling the casing panels the burner and the combustion chamber can be removed 1 2 2 Fig 4 Preparing for installation Preparing for installation cont 6136330 Installation ...

Page 12: ...12 Before removing the burner disconnect all cables from the burner 1 4 5 2x 3 2 Fig 5 Preparing for installation Preparing for installation cont 6136330 Installation ...

Page 13: ...Align the boiler with a slight incline towards the back Siting on a DHW cylinder System connection installation instructions Siting on a plinth Installation instructions on the plinth packaging Installation sequence Siting the boiler 6136330 Installation ...

Page 14: ...1 4 Fig 7 A Pressure gauge B Air vent valve C Automatic shut off valve D Quick action air vent valve E Safety valve F Tee Rp if the expansion vessel is to be fitted here G Boiler fill valve Installation sequence Mounting and connecting the safety equipment block 6136330 Installation ...

Page 15: ...Heating circuit connections with fittings or Divicon heating circuit distributor accessories B Heating flow C Heating return Installation sequence Mounting and connecting the safety equipment cont 6136330 Installation ...

Page 16: ... sections Safety valve discharge pipe DN 20 R Connection of the expansion vessel e g via the sup plied tee on the safety equipment block Rp Permiss operating pressure 3 bar 0 3 MPa Test pressure 4 bar 0 4 MPa Low water indicator Tests have verified that the low water indicator speci fied by EN 12828 is not required Note The boiler safety equipment block is fitted with a safety valve Installation s...

Page 17: ...o the ATV DVWK A 251 Germany Please note Flue gas may escape from the condensate drain pipe if it is not equipped with a trap Mount the condensate drain pipe with the trap supplied Connection with trap Note The trap is located in the boiler casing behind the front panel The trap may be fitted on the r h or the l h side Route the supply hose with a constant fall without sagging to prevent backpress...

Page 18: ... 11 A Condensate drain boiler B Plinth accessories C Condensate supply neutralising system D Neutralising system accessories E Condensate drain neutralising system Flue gas connection Note The boiler can be operated in open flue or room sealed mode A boiler flue connection is supplied subject to order Installation sequence Condensate connection cont 6136330 Installation ...

Page 19: ...on air aperture C Flue gas connection D Ventilation air connector E Rodent guard Room sealed operation Separate flue gas ventilation air routing Fig 13 A Boiler flue connection F Ventilation air pipe Installation sequence Flue gas connection cont 6136330 Installation ...

Page 20: ...ion instructions Do not carry out commissioning until the following conditions are met Free passage through the flue gas pipes Flue system with positive pressure is gas tight Inspection port covers checked for secure and tight seating Apertures for ensuring sufficient combustion air sup ply are open and cannot be closed off Applicable regulations on installing and commission ing flue systems have ...

Page 21: ... MC 18 oil filter element filter grade 5 µm For part no see Vitoset pricelist For low tanks If the suction head or the max pipe length is greater than specified in the following table install an oil feed pump with intermediate tank in the immediate proxim ity of the boiler Max pipe length for suction line with 7 4 mm internal Suction head H in m Max line run in m 4 0 100 3 5 95 3 0 89 2 5 83 2 0 7...

Page 22: ...perature sensor cylinder temperature sensor and plug for the control unit can be found in a pack behind the front panel see page 10 Installation sequence Removing the top panel and opening the control unit enclosure 6136330 Installation ...

Page 23: ...damaged When routing and securing cables leads on site ensure that the maximum permissible tempera ture for these is not exceeded 2 1 A B C D 3 Fig 17 A Main PCB B Strain relief fittings C Connecting cables D Cable entry Installation sequence Routing connecting cables leads 6136330 Installation ...

Page 24: ...nformation on connecting accessories When connecting accessories observe the sep arate installation instructions provided with them Please note Electronic assemblies can be damaged by elec trostatic discharge Prior to commencing any work touch earthed objects such as heating or water pipes to dis charge static loads Installation sequence Routing connecting cables leads cont 6136330 Installation ...

Page 25: ...ories 230 V 50 Hz This connection is directly controlled with the system ON OFF switch max 6 A Sensors and KM BUS Outside temperature sensor with separate con nection plug in a pack with other components behind the front panel Cylinder temperature sensor enclosed with the control unit Control unit connecting cable with 2 individual plugs sÖ Heating circuit pump A1 heating circuit without mixer sA ...

Page 26: ...ons directly to the 230 V supply Note The circulation pumps for heating circuits with mixer are connected to the mixer extension kit accessories Outside temperature sensor Fitting location for outside temperature sensor North or north westerly wall 2 to 2 5 m above ground level in multi storey buildings in the upper half of the second floor Not above windows doors or vents Not immediately below ba...

Page 27: ...connect 100 connecting cable accessories 5 6 4 7 2 3 1 Fig 22 Installing the Vitoconnect 100 Vitoconnect 100 installation and commissioning instructions Installation sequence Electrical connections cont 6136330 Installation ...

Page 28: ...FF switch on site If the current flowing to the connected working parts e g circulation pumps is higher than the fuse rating of the relevant accessory only use the output con cerned to control an on site relay Accessories Internal fuse protection Mixer extension kit 2 A EA1 extension 2 A Solar control module type SM1 2 A Closing the control unit enclosure Fig 24 Installation sequence Electrical co...

Page 29: ... Route cable A on site so that it cannot come into contact with hot components Remove the existing jumper before making the con nection Installation sequence Connecting the fire safety switch for a only 6136330 Installation ...

Page 30: ...30 2 3 1 Fig 26 Installation sequence Fitting the panels and connecting the programming unit 6136330 Installation ...

Page 31: ...ing the burner 46 19 Cleaning and replacing the oil pump filter if required 47 20 Venting the fuel oil filter and suction line 47 21 Checking the gaskets and thermal insulation sections 47 22 Checking the electrical connections for firm seating 23 Checking the neutralising system accessories 48 24 Checking the activated carbon filter accessories 49 25 Checking the expansion vessel and system press...

Page 32: ...ory 3 This requirement is met if water of potable quality is used as heating water For example if additives are used the additive manufac turer must specify which category the treated heating water comes under Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to appli ance damage Flush the heating system thoroughly before filling Only use fill water of po...

Page 33: ...rge pressure of the expansion vessel 2 Remove front insulation shell A 3 Open air vent valve B 4 Fill the heating system at boiler fill valve C in the heating return Minimum system pressure 0 8 bar 80 kPa Permissible operating pressure 3 bar 300 kPa Note According to EN 12828 every heat generator in a heating system must be protected against exceed ing the maximum operating pressure by at least on...

Page 34: ...nnect the drain hose on air vent valve B to a drain 4 Open valves B and C and vent at mains pres sure until the sound of escaping air can no longer be heard 5 Close valves B and C open the shut off valves on the heating water side Venting the heating system Commissioning inspection maintenance Venting the boiler 6136330 ...

Page 35: ...35 Note To drain the heating system remove the front panel of the boiler see page 38 A Fig 30 A Drain valve Commissioning inspection maintenance Draining the heating system if required 6136330 ...

Page 36: ...ion line Prevent dry running damage to the fuel oil pump Vent the fuel oil filter and suction line before commis sioning Use an oil suction pump to draw in fuel oil until the suction line and fuel oil filter are completely filled Checking the power supply Commissioning inspection maintenance Filling the trap and neutralising system accessories with water 6136330 ...

Page 37: ...re switch re sponds No After approx 51 s Check the air pressure switch cables and plug in connections Fault F5 Yes Ignition and oil pump mo tor start No Check the ignition module and oil pump motor ca bles and plug in connec tions Yes Solenoid valves open No Fault Check the oil supply check the solenoid valves F4 Yes Flame signal present Symbol A No Fault Check the ignition electro des electrode g...

Page 38: ... 32 Opening the boiler door A 1 3 2 Fig 33 1 Remove cables running to fan A from their retain ers 2 Undo the screws 3 Open the boiler door Commissioning inspection maintenance Removing the front panel 6136330 ...

Page 39: ...o become lodged in the gaps between the coils Note Discolouration on the surface of the stainless steel heat exchanger is a normal sign of use It has no bear ing on the function or service life of the stainless steel heat exchanger The use of chemical cleaning agents is not required Biferral heating surface A B Fig 34 Clean the biferral heating surface front area with brush A Commissioning inspect...

Page 40: ...um cleaner to remove deposits from the heating surfaces angled nozzle available as accessory 2 Pull the condensate hose from the neutralising sys tem 3 Flush the stainless steel heat exchanger with water Commissioning inspection maintenance Cleaning the heating surfaces cont 6136330 ...

Page 41: ...water penetrates the ventilation air gap of the balanced flue system Trap and condensate hose 1 2 Fig 37 1 Remove the trap 2 Check the condensate drain connection on the boiler and the condensate hose for dirt Clean the condensate hose with a suitable bottle brush accessories if necessary Commissioning inspection maintenance Cleaning the heating surfaces cont 6136330 ...

Page 42: ...em Fill the trap with water Danger If the trap is not full flue gas can escape Escaping flue gas can cause life threatening carbon monoxide poisoning Always fill the trap with water before commissioning Commissioning inspection maintenance Cleaning the heating surfaces cont 6136330 ...

Page 43: ...ote Minimum slope of the entire condensate pipe 3 Hoses must not sag or form a U bend Do not step on the hose The hose must be pro tected against mechanical damage Observe the minimum distance to the inlet to the sewer system Fig 40 2 Insert the combustion chamber as far as it will go Commissioning inspection maintenance Cleaning the heating surfaces cont 6136330 ...

Page 44: ...44 Fig 41 Commissioning inspection maintenance Closing the boiler door 6136330 ...

Page 45: ... pulled out open the boiler door and push mixer assembly B out by applying light pressure to the sensor plate 2 Pull the cables from oil preheater A and ignition electrodes E 3 Undo Allen screw C and remove spinning facility D 4 Clean the restrictor dosing ring and ignition elec trodes Commissioning inspection maintenance Cleaning the burner 6136330 ...

Page 46: ... Position oil burner nozzle F centrally in the restrictor 6 Secure Allen screw C of the spinning facility Check nozzle gap a Please note An incorrectly adjusted nozzle gap a can result in irregular operation of the burner and even a fault shutdown Rated heating output at TF TR 50 30 C kW 12 9 19 3 16 1 23 6 19 3 28 9 Nozzle gap a see page 46 mm 3 5 0 2 0 3 2 0 0 2 0 3 2 0 0 2 0 3 Mounting the burn...

Page 47: ...intenance work See page 36 Checking the gaskets and thermal insulation sections 1 Check the gaskets and packing cords in the boiler door for damage 2 Check the thermal insulation sections in the com bustion chamber and the boiler door for damage 3 Replace any damaged components Commissioning inspection maintenance Cleaning and replacing the oil pump filter if required 6136330 ...

Page 48: ...ing system ensure that the hoses are not kinked and that no U bends are cre ated Check the function of the neutralising system Check the pH value of the condensate with pH test strips Replace the granulate if the pH value is 6 5 Note Part no for pH test strips 9517678 Observe the manufacturer s documentation included for the neutralising system Commissioning inspection maintenance Checking the gas...

Page 49: ... Flue gas test port Rated heating output at TF TR 50 30 C kW 12 9 19 3 16 1 23 6 19 3 28 9 at TF TR 80 60 C kW 12 18 15 22 18 27 Burner stage 1 2 1 2 1 2 Rated heat input kW 12 5 18 7 15 6 22 9 18 7 28 1 Oil burner nozzle Make Danfoss Type 80 H LE 80 H LE 80 H LE Gph 0 40 0 50 0 50 Oil pressure approx Min bar 8 16 5 10 18 8 5 17 MPa 0 8 1 65 1 0 1 8 0 85 1 7 Max bar 10 5 20 13 22 13 5 25 MPa 1 05 ...

Page 50: ...essure gauge measuring range 0 25 bar 0 2 5 MPa into test port P A and the vacuum gauge measuring range 0 1 bar 0 0 1 MPa into test port V B Note Only seal in the pressure and vacuum gauges with copper or aluminium gaskets or with O rings Do not use sealing tape 02 Start the boiler 03 Set burner stage 1 see page 50 04 Where the vacuum measures higher than 0 35 bar 35 kPa check the filter for conta...

Page 51: ...5 Service functions 06 Max fan speed 07 Change Select Yes and confirm with OK The display shows values for the fan speed at burner stages 1 and 2 The display is limited by boiler specific parameters to the lowest of the two min values and the max value of burner stage 2 Note Lower value lower speed Higher value higher speed 08 Set the values and confirm with OK Changes only become effective after ...

Page 52: ...electing the appropriate scheme see Selected system examples For individual coding steps see page 57 Adjusting the heating curves The heating curves illustrate the relationship between the outside temperature and the boiler water or flow temperature More simply The lower the outside temperature the higher the boiler water or flow temperature The boiler water or flow temperature in turn affects the...

Page 53: ... 35 30 25 20 15 10 5 0 4 0 6 0 8 1 0 1 2 1 4 30 1 8 1 6 C 14 Fig 50 Example for outside temperature 14 C A Underfloor heating system slope 0 2 to 0 8 B Low temperature heating system slope 0 8 to 1 6 C Heating system with a boiler water temperature in excess of 75 C slope 1 6 to 2 0 Changing the slope and level A B Boiler water or flow temperature in C 90 20 20 Outside temperature in C 3 5 1 4 0 2...

Page 54: ...re in C D Heating circuit pump OFF E Heating circuit pump ON Adjustment of the reduced room temperature Operating instructions Connecting the control unit to WiFi Note Vitoconnect 100 OPTO1 accessories required For installation and commissioning See the separate installation and commissioning instructions Linking the control unit to the LON The LON communication module must be plugged in Note The ...

Page 55: ... LON subscriber fault moni toring Code 9C 20 LON subscriber fault moni toring Code 9C 20 Carrying out a LON subscriber check The subscriber check is used to test communication with the system devices connected to the fault man ager Requirements The control unit must be programmed as fault man ager code 79 1 in the General group The LON subscriber number must be programmed in all control units The ...

Page 56: ...d Service and appear on the programming unit display Acknowledging and resetting service Press OK to acknowledge a service message Note An acknowledged service message that was not reset reappears the following Monday After a service has been carried out resetting service 1 Press OK and å simultaneously for approx 4 s 2 Service functions 3 Service reset Note The selected service parameters for hou...

Page 57: ...ing all codes to the factory setting Select Standard setting Note This also resets the codes at coding level 2 General Select General Coding Coding in the delivered condition Possible change System design 00 1 System version 1 One heating circuit without mixer A1 heating circuit 1 without DHW heating 00 2 to 00 10 For system schemes see the follow ing table Value ad dress 00 System ver sion Descri...

Page 58: ...use 7F 0 Apartment building Holiday program and time program for DHW heating can be set sepa rately Lock out controls 8F 0 Operation enabled in standard menu and extended menu Note The code is only activated when you exit the service menu 8F 1 Operation disabled in standard menu and extended menu Emissions test mode can be activa ted 8F 2 Operation enabled in standard menu but disabled in extended...

Page 59: ...meters Enable DHW circulation pump 73 0 DHW circulation pump ON ac cording to time program 73 1 to 73 6 ON from once per hour for 5 min up to 6 times per hour for 5 min dur ing the time program 73 7 Constantly ON Solar Select Solar see page 57 Note The solar group is only displayed if a solar control module type SM1 is connected Coding Coding in the delivered condition Possible change Speed contro...

Page 60: ...ary function 20 7 Solar heating via external heat ex changer without additional tempera ture sensor 20 8 Solar heating via external heat ex changer with additional temperature sensor 20 9 Solar heating of 2 DHW cylinders Heating circuit Select Heating circuit see page 57 Coding Coding in the delivered condition Possible change Priority DHW heating A2 2 Cylinder priority for heating circuit pump A2...

Page 61: ...tion only for heating circuits with mix er A7 1 With mixer economy function exten ded heating circuit pump logic Heating circuit pump also OFF If the mixer has been trying to close for more than 20 min Heating circuit pump ON If the mixer changes to control function If there is a risk of frost Pump idle time transition reduced mode A9 7 With pump idle time Heating cir cuit pump OFF if set value is...

Page 62: ...mum limit adjustable from 1 to 127 C limited by boiler specific pa rameters Max flow temperature heating circuit C6 74 Electronic maximum flow tempera ture limit set to 74 C C6 10 to C6 127 Maximum limit adjustable from 10 to 127 C limited by boiler specific pa rameters Heating program changeover d5 0 External operating program changeover switches operating program to Constant operation at reduced...

Page 63: ...ture increase Fb 30 Duration of the set boiler water or flow temperature increase see coding address FA 60 min See example on page 96 Fb 0 to Fb 150 Duration adjustable from 0 to 300 min 1 step 2 min Code 2 In coding level 2 all codes are accessible Codes that are not assigned due to the heating sys tem equipment level or the setting of other codes are not displayed Below the heating circuit witho...

Page 64: ...t with mixer M2 heating circuit 2 and one heating circuit with mixer M3 heating circuit 3 without DHW heating 8 3 One heating circuit with mixer M2 heating circuit 2 and one heating circuit with mixer M3 heating circuit 3 with DHW heating 9 3 One heating circuit without mixer A1 heating circuit 1 one heating circuit with mixer M2 heating circuit 2 and one heating circuit with mixer M3 heating circ...

Page 65: ... demand Coding address 9b 3b 3 Function of input DE2 External blocking 3b 4 Function of input DE2 External blocking with fault message input 3b 5 Function of input DE2 Fault mes sage input 3b 6 Function of input DE2 Brief opera tion of the DHW circulation pump pushbutton function DHW circulation pump runtime set ting Coding address 3d 3C 0 Function of input DE3 at EA1 extension No function 3C 1 Fu...

Page 66: ... 49 Display correction 5 K to Display correction 0 1 K 6E 51 to 6E 99 Display correction 0 1 K to Display correction 4 9 K 76 0 Without LON communication mod ule 76 1 With LON communication module automatic recognition 77 1 LON subscriber number 77 2 to 77 99 LON subscriber number adjustable from 1 to 99 1 4 boiler 5 Cascade 10 97 Vitotronic 200 H 98 Vitogate 99 Vitocom Note Allocate each number o...

Page 67: ...rface 95 1 With Vitocom 100 communication in terface automatic recognition 97 0 With LON communication module The outside temperature of the sensor connected to the control unit is used internally 97 1 Control unit receives outside tem perature 97 2 Control unit transmits outside tem perature to Vitotronic 200 H 98 1 Viessmann system number in conjunction with monitoring of sev eral systems via Vi...

Page 68: ...ce is shown on the display address is automatically set and must be manually reset after a serv ice has been carried out 26 0 Burner fuel consumption stage 1 no count if 26 0 is programmed 26 1 to 26 255 Entries from 0 1 to 25 5 1 step 0 1 l h or gallons h 29 0 Burner fuel consumption stage 1 and 2 no count if 29 0 is pro grammed 29 1 to 29 255 Entries from 0 1 to 25 5 1 step 0 1 l h or gallons h ...

Page 69: ...ith 2 min run on time after cylinder heating 62 0 No circulation pump run on 62 1 to 62 15 Run on time adjustable from 1 to 15 min 65 0 Do not adjust 67 40 For solar DHW heating Set DHW temperature 40 C Reheating by the DHW cylinder is suppressed above the selected set tempera ture 67 0 to 67 95 Set DHW temperature adjustable from 0 to 95 C limited by boiler specific parameters 6F Max heating outp...

Page 70: ...l function of solar circuit pump switched on To measure the collector tempera ture more accurately the solar cir cuit pump periodically starts for a short duration 08 60 Set DHW temperature maximum cylinder temperature 60 C 08 10 to 08 90 Set DHW temperature adjustable from 10 to 90 C 09 130 Maximum collector temperature to protect system components 130 C 09 20 to 09 200 Temperature adjustable fro...

Page 71: ...iary function 20 4 Differential temperature control 2 for central heating backup 20 5 Thermostat function 20 6 Thermostat function and auxiliary function 20 7 Solar heating via external heat ex changer without additional tempera ture sensor 20 8 Solar heating via external heat ex changer with additional temperature sensor 20 9 Solar heating of 2 DHW cylinders 22 8 Start temperature differential wi...

Page 72: ...totrol 200 A 200 RF auto matic recognition A0 2 With Vitotrol 300 A automatic rec ognition A1 0 All possible settings at the remote control can be accessed A1 1 Only party mode can be set at the remote control only for Vitotrol 200 A and Vitotrol 200 RF A2 2 Cylinder priority for heating circuit pump A2 0 No cylinder priority for heating circuit pump A2 1 Cylinder priority for mixer The mixer is c...

Page 73: ...5 5 With heating circuit pump logic function economy mode Heating circuit pump is OFF when the outside temperature OT is 1 K higher than the set room tempera ture RTset OT RTset 1 K A5 0 Without heating circuit pump logic function A5 1 to A5 15 With heating circuit pump logic func tion Heating circuit pump OFF see the following table Parameter address A5 With heating circuit pump logic function He...

Page 74: ...th remote control Heating mode reduced mode Weather compensated change the code only for the heating circuit with mixer b0 1 Heating mode Weather compensa ted Reduced mode With room tempera ture hook up b0 2 Heating mode With room tempera ture hook up Reduced mode Weather compen sated b0 3 Heating mode reduced mode With room temperature hook up b2 8 With remote control and for the heating circuit ...

Page 75: ...d 3C d6 0 Heating circuit pump stays in con trol mode at External blocking signal d6 1 Heating circuit pump is switched off at External blocking signal subject to coding addresses 3A 3b and 3C d6 2 Heating circuit pump is switched on at External blocking signal subject to coding addresses 3A 3b and 3C d7 0 Heating circuit pump stays in con trol mode at External demand signal d7 1 Heating circuit p...

Page 76: ...it for raising the re duced set room temperature 14 C see example on page 95 F9 10 to F9 60 Temperature limit for raising the set room temperature to the value se lected for standard mode adjustable from 10 to 60 C FA 20 The set boiler water or flow tem perature is increased by 20 when changing from operation with reduced room temperature to oper ation with standard room tempera ture See example o...

Page 77: ... 2 Select Yes 3 Confirm with OK Note The service level is automatically exited after 30 min Diagnosis Checking operating data Operating data can be called up in 6 areas See Diagnosis in the service menu overview Operating data on heating circuits with mixer or solar thermal systems can only be called up if such compo nents are present in the system For further information on operating data see cha...

Page 78: ... 0 1 F 0 0 0 0 0 0 0 A 0 0 0 0 0 0 1 2 0 0 0 Fig 54 For an explanation of the relevant values in the individual rows and fields see the following table Row brief scan Field 1 2 3 4 5 6 1 System schemes 01 to 10 Software version Control unit Software version Programming unit 2 Burner type 0 Appliance version Appliance ID CU ID 3 0 0 Number of KM BUS subscrib ers Software version solar control modul...

Page 79: ...s started Htg circ pump HC2 ON Output for heating circuit pump active extension heating circuit with mixer Mixer HC2 Open Output for Mixer open active extension heating circuit with mixer Mixer HC2 Close Output for Mixer close active extension heating circuit with mix er Htg circ pump HC3 ON Output for heating circuit pump active extension heating circuit with mixer Mixer HC3 Open Output for Mixer...

Page 80: ... called up Faults are sorted by date 1 Press OK and å simultaneously for approx 4 s 2 Fault history 3 Display Deleting the fault history 1 Press OK and å simultaneously for approx 4 s 2 Fault history 3 Delete Fault codes Displayed fault code System characteristics Cause Measures 10 Regulates as if the outside temperature were 0 C Short circuit outside tem perature sensor Check outside temperature ...

Page 81: ...r Check temperature sensor on the solar control module or the sensor on the Vitosolic 93 Control mode Short circuit cylinder tem perature sensor Check temperature sensor at con nection S3 on the Vitosolic 100 94 No solar DHW heating Short circuit cylinder tem perature sensor Check temperature sensor on the solar control module or the sensor on the Vitosolic 98 Control mode Lead break temperature s...

Page 82: ... control close to the boiler bd Control mode without remote control Communication error Vitotrol remote control heating circuit 2 with mix er Check connections lead coding address A0 and remote control settings see page 97 For wire less remote control units Check connection place remote control close to the boiler bE Control mode without remote control Communication error Vitotrol remote control h...

Page 83: ...ttings see page 97 E0 Control mode External LON subscriber error Check connections and LON sub scribers E4 Burner locked out 24 V power supply fault Replace control unit E5 Burner in a fault state Flame amplifier fault Press reset button R Replace the control unit if the burn er will not restart E6 Burner in a fault state Oil preheater does not re spond within tolerated time Check oil preheater an...

Page 84: ...les to fan Press reset button R Fb Burner in a fault state 3 x flame blow off during operation Check oil supply check nozzle Press reset button R Fd Burner in a fault state Boiler coding card missing or burner control unit fault Insert the boiler coding card Press reset button R Replace control unit if fault per sists Fd Burner in a fault state and ad ditional fault b7 is displayed Solenoid coil f...

Page 85: ...epeat the test on the sensor itself 4 Depending on the test result replace the lead or the outside temperature sensor Checking the boiler water temperature sensor or cylinder temperature sensor 5 Fig 58 1 Boiler water temperature sensor Disconnect leads from boiler water temperature sensor A and check the resistance Cylinder temperature sensor Disconnect plug from the cable harness at the control ...

Page 86: ...out after the flue system has cooled down by pressing reset button R Fig 60 1 Pull lead from flue gas temperature sensor A 2 Check the sensor resistance and compare it to the curve 10 1 10 30 50 70 90 110 Temperature in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ Fig 61 Sensor type NTC 10 kΩ 3 In the event of severe deviation replace the sensor Checking the temperature limiter If the burner control ...

Page 87: ...iter A 2 Check the continuity of the temperature limiter with a multimeter 3 Remove faulty temperature limiter 4 Install a new temperature limiter 5 After commissioning press reset button R on the control unit Troubleshooting Repairs cont 6136330 Service ...

Page 88: ...eating circuit 3 4 4 2 3 5 6 1 0 9 87 Checking the rotational direction of the mixer motor After being switched on the boiler implements a self test During this the mixer is opened and closed again Note The mixer motor can also be started via the actuator test see chapter Checking outputs Observe the rotational direction of the mixer motor dur ing its self test Then manually set the mixer back to ...

Page 89: ...ing cover Check flow temperature sensor 10 1 10 30 50 70 90 110 Temperature in C 0 4 0 6 0 8 2 4 6 8 20 Resistance in kΩ Fig 65 Sensor type NTC 10 kΩ 1 Disconnect plug flow temperature sensor 2 Check the sensor resistance and compare it to the curve In the event of severe deviation replace the sensor Checking the Vitotronic 200 H accessories The Vitotronic 200 H is connected to the control unit vi...

Page 90: ...troller and to 82 C by the electronic temperature limiter If the boiler water temperature reaches 100 C the tempera ture limiter in the safety chain locks out the burner con trol unit DHW heating The burner and the circulation pump for cylinder heat ing are started if the cylinder temperature is 2 5 K below the set cylinder temperature In the delivered condition the set boiler water temper ature i...

Page 91: ...tion pump External contacts must be floating When connecting external contacts observe the requirements of protec tion class II 8 0 mm air and creep path or 2 0 mm insulation thickness to live parts Input function assignment Select the input functions via the parameter changes codes in the General group at the boiler control unit DE1 Parameter coding address 3A DE2 Parameter coding address 3b DE3 ...

Page 92: ...ameter coding address 3d in the General group Analogue input 0 10 V The 0 10 V hook up provides an additional set boiler water temperature 0 1 V is taken as No specification for set boiler water temperature 1 V Set value 10 C 10 V Set value 100 C Ensure galvanic separation between the earth conduc tor and the negative pole of the on site power source Output aBJ The following functions can be conne...

Page 93: ... remains active for as long as the contact remains closed but at least as long as the duration selected in coding address F2 External blocking The functions External blocking and External block ing with fault message input are implemented via the EA1 extension There are 3 inputs available at the EA1 extension DE1 to DE3 The function is selected via the following codes External blocking Code Input ...

Page 94: ...ort to be provided by the heating contractor must contain the following details regarding heat up Heat up data with the relevant flow temperatures Max flow temperature achieved Operating state and outside temperature at handover The various temperature profiles are adjustable via coding address F1 The function continues after a power failure or after the control unit has been switched off Heating ...

Page 95: ...ture C 1 5 10 15 20 25 30 Days 50 40 30 20 10 Fig 74 Raising the reduced room temperature During operation at reduced room temperature the reduced set room temperature can be automatically raised subject to the outside temperature The temper ature is raised in accordance with the selected heating curve and no higher than the standard set room tem perature The outside temperature limits for the sta...

Page 96: ... room tem perature Reducing the heat up time When changing from operation with reduced room temperature to operation with standard room tempera ture the boiler water or flow temperature is increased in accordance with the selected heating curve The boiler water or flow temperature can be automatically increased The value and duration of the additional increase of the set boiler water or flow tempe...

Page 97: ...ontrol The heating circuit assignment must be configured when commissioning the Vitotrol Heating circuit Vitotrol configuration 200 A 200 RF 300 A The remote control affects the heating circuit without mixer A1 H 1 HC 1 The remote control affects the heating circuit with mixer M2 H 2 HC 2 The remote control affects the heating circuit with mixer M3 H 3 HC 3 One heating circuit can be assigned to t...

Page 98: ...7 A1 Main PCB A3 Programming unit A5 Connection extension A9 Internal H3 extension fÖ Power supply 230 V 50 Hz aBH Power supply internal extensions Connection and wiring diagram Connection and wiring diagram 6136330 Appendix ...

Page 99: ... water temperature sensor aG Flue gas temperature sensor fJ Temperature limiter gF Ignition unit a Ö Fan a ÖA Fan control aXF Flame monitor aCA Air pressure switch Connection and wiring diagram Connection and wiring diagram cont 6136330 Appendix ...

Page 100: ... module S1 ON OFF switch S2 Reset button A Fan B Oil pump C Fuel valve stage 1 D Fuel valve stage 2 X Electrical interfaces Outside temperature sensor Cylinder temperature sensor fÖ Power supply 230 V 50 Hz aXF Flame monitor aVG KM BUS aBH Power supply internal extensions s A Internal connecting cable Connection and wiring diagram Connection and wiring diagram cont 6136330 Appendix ...

Page 101: ...diagram Fig 80 dF Jumper or fire safety switch a Ö Fan motor s A Internal connecting cable on main PCB A Oil pump B Fuel valve 1 C Fuel valve 2 Connection and wiring diagram Connection and wiring diagram cont 6136330 Appendix ...

Page 102: ...n sÖ Heating circuit pump for heating circuit without mixer sA Circulation pump for cylinder heating sK DHW circulation pump fÖ Power supply 230 V 50 Hz aXA Oil preheater aBH Power supply internal extensions Connection and wiring diagram Connection and wiring diagram cont 6136330 Appendix ...

Page 103: ...O2 Stage 1 actual by vol set by vol Stage 2 actual by vol set by vol Oxygen content O2 Stage 1 actual by vol set by vol Stage 2 actual by vol set by vol Carbon monoxide content CO Stage 1 actual ppm set ppm Stage 2 actual ppm set ppm Stat burner pressure operating phase Stage 1 actual mbar kPa set mbar kPa Stage 2 actual mbar kPa set mbar kPa Commissioning service reports Commissioning service rep...

Page 104: ...n C 0 to 40 During storage and transport C 20 to 65 Temperature controller and temperature lim iter setting C 75 Rated relay output breaking capacity at 230 V Heating circuit pump sÖ A 2 1 1 Circulation pump for cylinder heating sA A 2 1 1 DHW circulation pump sK A 2 1 1 Motor speed oil pump drive rpm 2880 2880 2880 Pump rate oil pump l h 45 45 45 Burner version 2 stage 2 stage 2 stage Product ID ...

Page 105: ...ystem are not part of ordi nary household waste For decommissioning the system isolate the system from the power supply and allow components to cool down where appropriate All components must be disposed of correctly Disposal Final decommissioning and disposal 6136330 Appendix ...

Page 106: ...acteristics determined as system values for the product Vitoladens 300 C as part of EC type testing according to the Efficiency Directive see specification table can be utilised to assess the energy effi ciency of heating and ventilation systems in buildings to DIN V 4701 10 as specified by the EnEV Germany Manufacturer s certificate according to the 1st BImSchV Germany We Viessmann Werke GmbH Co ...

Page 107: ... Heating circuit assignment 97 Heating curve 52 Heating curve level 53 Heating curve slope 53 Heating surfaces Cleaning 39 Heating system filling 32 Heat up time 96 I Ignition electrodes Adjusting 46 L Language selection 32 LON 54 Fault monitoring 55 Subscriber check 55 Subscriber number setting 54 LON communication module 54 LON system 54 Low water indicator 16 M Manufacturer s certificate 106 Mi...

Page 108: ...pressure 33 System schemes 52 T Temperature limiter Thermal circuit breaker 86 Time setting 32 Trap Connecting 17 Filling 36 V Venting Boiler 34 Vitotronic 200 H 89 W WiFi connection 54 Wiring diagram 98 Viessmann Limited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 645...

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Viessmann B23, Installation And Service Instructions Manual

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