Viessmann VITOTRONIC 300-K Instructions d'exploitation

Installation and serviceinstructionsfor contractorsVIESMANNVitotronic 300-KType MW1BWeather-compensated cascade control unitVitotronic 100Type GC1B an

10DangerIncorrect wiring can lead to seri-ous injury from electrical currentand result in appliance damage. Route LV leads < 42 V and> 42 V/230

100Brief description The boiler water temperature is regu-lated by modulating the burner. The set boiler water temperature isdetermined from the fol

101Standalone controlBoilers connected in parallel Boilers connected in series Without and with flow temperature sen-sor (see the following table).

102 The control strategy is set automati-cally to conventional boiler strategy 2,code "3C:2" in the "Cascade" group(see page 104)

103Example (code "3C:0" in the "Cascade " group)Two-boiler system with modulating burn-ers: Boiler 1: 100 % rated heating output(

104Conventional boiler strategies Conventional boiler strategy1Conventional boiler strategy2Benefit As few boilers as possible areoperational.Set cod

105ExamplesTwo-boiler system with modulating burn-ers: Boiler 1: 100 % rated heating output(base load set to 33 %) Boiler 2: 100 % rated heating out

106Conventional boiler strategy 2 (code "3C:2" in the "Cascade" group)Starting Shutdown00033503310010010015020050tTotal Boiler 2 B

107FunctionsThe heating circuit without mixer is sub-ject to the boiler water temperature andits control range limits.The heating circuit pump is the

108 Quick setbackReduce the set room temperature byat least 2 K by the following measures:– Activating economy mode– Changing from central heating wi

109 The report to be provided by the heat-ing contractor must contain the follow-ing details on heat-up:– Heat-up data with respective flowtemperatur

11Vitotronic 100, type GC1B3/21715143146A1451451519041150A15220295040156156A117BPCB, low voltage§/?Boiler water temperature sensoraGFlue gas temperatu

110Temperature profile 4: Code "F1:4"Flowtemperature °CDays50403020101 5 10 15 20 25 30Temperature profile 5: Code "F1:5"Flowtempe

111Temperature profile 7: Code "F1:15"Flowtemperature °C1 5 10 15 20 25 30Days5040302010System dynamicsYou can influence the control charact

112Flow temperature controlFlow temperature in °C11080+8 K+20 -208 KOutside temperature in °CABCDEAMaximum flow temperature limit(coding address "

113Example using the settings in the delivered conditionAB-20Outside temp. in °CBoiler water orFlow temperature in °C8070605040300 -5 -10 -15510Set ro

114Example using the settings in the delivered condition100203030405060600700800900Set boiler water or flowtemperature in °CTime in hABCDAStart of ope

115Flow temperature rises(Set value +1 K)The mixer motor receives the signal"Mixer closed". The signal durationlengthens with an increasing

116In conjunction with coding address"7F" in the "General" group Detached houseCode "7F:1":– Automatic modeThe heating

117System with cylinder loading systemThe above functions also apply in con-junction with cylinder loading systems.Set the following codes:"55:3&

118Cylinder temperature control with 2cylinder temperature sensors (code"55:2")Cylinder temperature sensor 1 enablesthe circulation pump for

119NoteCodes that have no function due to theheating system equipment level or thesetting of other codes are not dis-played.The codes are divided into

12gÖCentral fault messagegSA1Motorised butterfly valveorMotor for 3-way mixing valve forreturn temperature controllÖBurner stage 2/mod.aBÖExternal con

120Coding in the delivered condition Possible changeServomotor runtime40:... Actuator runtime at pluggSA1Delivered condition de-faulted by boiler codi

121Coding in the delivered condition Possible changeBoiler07:1 Consecutive boiler num-ber in multi boiler sys-tems07:2to07:4Consecutive boiler numberi

122Note All codes are accessible in codinglevel 2. Codes that have no function due to theheating system equipment level or thesetting of other codes

123Coding in the delivered condition Possible change33:1 Function output A1 atAM1 extension:Heating circuit pump33:3 Circulation pump for neu-tralisin

124Coding in the delivered condition Possible change76:0 Without LON communi-cation module76:1 With LON communicationmodule; recognised auto-matically

125CodingCoding in the delivered condition Possible change01:1 Single boiler system 01:2 Multi boiler system withcascade control via LON01:3 Never adj

126Coding in the delivered condition Possible changeDelivered condition de-faulted by the boiler cod-ing card.09:... Type GC1B:Maximum burner outputin

127Coding in the delivered condition Possible changeDelivered condition de-faulted by the boiler cod-ing card.13:2014:... Type GC1B:Minimum burner run

128Coding in the delivered condition Possible changeCompensation of signaldelay for hours run meter.Time from burner startsignal initiation at T2 inpl

129Coding in the delivered condition Possible change28:0 Type GC1B:No burner interval igni-tion28:1to28:24Time interval adjustablefrom 1 to 24 h. Burn

13gSA1Motorised butterfly valveaBÖExternal connections, e.g. sup-plementary safety equipmentaBASafety chain, potential-freeaBHPower supply, from mains

130Note The codes are displayed as plain text. Codes that have no function due to theheating system equipment level or thesetting of other codes are

131Value ad-dress 00: ...Description2 One heating circuit without mixer A1 (heating circuit 1),with DHW heating; recognised automatically.3 One heatin

132Coding in the delivered condition Possible changeDetached house/apartment building7F:1 Detached house 7F:0 Apartment buildingSeparate adjustment of

133Coding in the delivered condition Possible changeMax. system flow temperature37:80 Electronic maximum sys-tem flow temperature limitset to 80 °C.37

134CodingCoding in the delivered condition Possible changeDHW67:40 For solar DHW heating:Set DHW temperature40 °C. Reheating is sup-pressed above the

135Coding in the delivered condition Possible changeStagnation time reduction0A:5 Temperature differentialfor stagnation time reduc-tion (reduction in

136CodingCoding in the delivered condition Possible changePriority DHW heatingA2:2 Cylinder priority controlfor heating circuit pumpand mixerA2:0 With

137Coding in the delivered condition Possible changeExtended economy function, mixerA7:0 Only for heating circuitswith mixer:Without mixer economyfunc

138Coding in the delivered condition Possible changeEconomy function room temperatureb5:0With remote control:*1Without room tempera-ture-dependent hea

139Coding in the delivered condition Possible changeHeating program changeoverd5:0 With external operatingprogram changeover (ob-serve setting of codi

14CDDABACables with moulded strain reliefBOn-site cables; strip up to 100 mmof insulation.CPlug-in connection diagramDFemale mouldings for plug-in con

140Coding in the delivered condition Possible changeParty mode time limitF2:8 Time limit for party modeor external operating pro-gram changeover viapu

141Coding in the delivered condition Possible changeDuration set flow temperature increaseFb:30 Duration for raising theset flow temperature (seecodin

142Note At coding level 2, all codes are acces-sible, including the codes at codinglevel 1. Codes that have no function due to theheating system equ

143Value ad-dress 00: ...Description2 One heating circuit without mixer A1 (heating circuit 1),with DHW heating; recognised automatically.3 One heatin

144Coding in the delivered condition Possible change2E:2 Wireless outside tempera-ture sensor not used.2F:0 Never adjust 40:125 Actuator runtime at

145Coding in the delivered condition Possible change5b:0 Without EA1 extension 5b:1 With EA1 extension; recog-nised automatically.5C:0Function output

146Coding in the delivered condition Possible change5E:5 Fault message input5E:6 Brief operation, DHW cir-culation pump (pushbuttonfunction)Selection

147Coding in the delivered condition Possible change98 = Vitogate99 = Vitocom78:1 LON communication en-abled78:0 LON communication disa-bled79:1 With

148Coding in the delivered condition Possible change82:1283:5 Summer time starts:Week 5 of the selectedmonth83:1to83:5Week 1 to week 5 of theselected

149Coding in the delivered condition Possible change91:2 Heating circuit with mixerM2 (heating circuit 2)91:3 Heating circuit without mix-er A1 (heati

15X7Changing over the high limit safety cut-outOnly Vitotronic 100, type GC1BThe high limit safety cut-out is suppliedwith a factory setting of 110 °C

150Coding in the delivered condition Possible change99:4 External "Mixer close"Heating circuit with mixerM3 (heating circuit 3)99:5 Without

151Coding in the delivered condition Possible change9A:7 Without function9b:70 Set flow temperature forexternal demand 70 °C9b:0 No default set value9

152Coding in the delivered condition Possible changeNoteValue must be lower thanthe lowest value of codingaddress "06" in group 2 ofevery Vi

153Coding in the delivered condition Possible change3d:1 Output statement for con-densing strategy andconventional boiler strat-egy 13d:0 No output st

154Coding in the delivered condition Possible changeNoteA boiler or burner stage willshut down if this value isexceeded. 47:15 Stop differential set t

155Coding in the delivered condition Possible changeNoteObserve the max. permis-sible DHW temperature.Change over temperaturecontroller " ".

156Coding in the delivered condition Possible change64:2 In party mode and afterexternal changeover toconstant operation withthe standard room tem-per

157Coding in the delivered condition Possible changeSet DHW temperature40 °C. Reheating is sup-pressed above the selec-ted set temperature(DHW heating

158Only in conjunction with solar controlmodule, type SM1CodingCoding in the delivered condition Possible change00:8 Start temperature differ-ential f

159Coding in the delivered condition Possible change09:130 Maximum collector tem-perature (to protect sys-tem components) 130 °C09:20to09:200Temperatu

161.2.95110120°C3.Changing the temperature controller settingOnly Vitotronic 100, type GC1BThe temperature controller is suppliedwith a factory settin

160Coding in the delivered condition Possible change Target temperaturecontrol ON (code"10:1"):Temperature at whichthe solar heated waterin

161Coding in the delivered condition Possible change22:8 Start temperature differ-ential with central heatingbackup "8 K" (code 20:4must be

162Coding in the delivered condition Possible changeAfter the selected cyclicalheating time for the DHWcylinder without priorityhas expired, the rise

163Parameter Heating circuit pump Address A3:... ON OFF–9 –10 °C –8 °C–8 –9 °C –7 °C–7 –8 °C –6 °C–6 –7 °C –5 °C–5 –6 °C –4 °C–4 –5 °C –3 °C–3 –4 °C –

164Parameter addressA5:...With heating circuit pump logic function: Heating cir-cuit pump OFF3 AT > RTset + 3 K4 AT > RTset + 2 K5 AT > RTset

165Coding in the delivered condition Possible change(see function descriptionon page 108).NoteThe maximum idle time is10 h 15: Long idle timeAA:2 With

166Parameter ad-dress b5:...With heating circuit pump logic function:Heating circuit pump OFF Heating circuit pump ON5 RTactual > RTset + 1 K RTact

167Coding in the delivered condition Possible changeC1:0With remote control:*1Without shutdown timeoptimisationC1:1toC1:12With stop optimisation ofset

168Coding in the delivered condition Possible changeOperating programchangeover to "Constantcentral heating with re-duced room tempera-ture"

169Coding in the delivered condition Possible changeNoteObserve settings of cod-ing addresses "5d", "5E","5F" in the &qu

171.A2.3.A75 to 100 °C1. Remove rotary selector " ".2. Using a pair of pointed pliers, breaktab A identified in the illustration outof the

170OverviewSchemes, Vitotronic 100, type GC1BConnection and wiring diagram5815 091 GB

171A2 PCB, low voltageA3 PCB 230 V~A6 Programming unitA7 Optolink PCB/emissions testswitchA8 PCBA9 Boiler coding cardA10 LON communication module(acce

172PCB 230 V~Schemes, Vitotronic 100, type GC1BConnection and wiring diagram (cont.)5815 091 GB

173sÖCirculation pump, flue gas/water heat exchangerorSwitching outputsAWithout functionsKWithout functionsLShunt pump or boiler circuitpump (on site)

174PCB, low voltage§Boiler water temperature sensor%AWithout function%BWithout function)Without functionaGFlue gas temperature sensoraJATherm-Control

175OverviewSchemes, Vitotronic 100, type GC4BConnection and wiring diagram5815 091 GBService

176A2 PCB, low voltageA3 PCB 230 V~A6 Programming unitA7 Optolink PCB/emissions testswitchA8 PCBA9 Boiler coding cardA10 LON communication module(acce

177PCB 230 V~Schemes, Vitotronic 100, type GC4BConnection and wiring diagram (cont.)5815 091 GBService

178sÖWithout functionsAWithout functionsKWithout functionsLBoiler circuit pump (on site)fÖPower supply, from mains filterunit, 230 V/50 HzfABurnergÖOu

179%AWithout function%BWithout function)Without functionaJAWithout functionaJBWithout functionaVDExternal connectionsaVGKM BUS subscriberandKM BUS, bu

18Making the LON connection, seepage 44.Connecting sensorsVitotronic 100, type GC1B1212 1212 12 12 12 1212 1217A 15121517B1451453/25A 5B9PCB, low volt

180OverviewSchemes, Vitotronic 300-KConnection and wiring diagram5815 091 GB

181A1 PCB, extension for heating circuits2 and 3 with mixerA2 PCB, low voltageA3 PCB 230 V~A6 Programming unitA7 Optolink PCB/emissions testswitchA8 P

182PCB 230 V~Schemes, Vitotronic 300-KConnection and wiring diagram (cont.)5815 091 GB

183sÖHeating circuit pumporPrimary pump, cylinder loadingsystemsACirculation pump for cylinderheating (accessory)sKDHW circulation pump (on site)sLDis

184¡¢£Connecting cable for dataexchange (accessory)S3 Emissions test switchV1 Fault indicator (red)V2 ON/OFF indicator (green)X Electrical interfacesP

185Boiler Boiler coding cardDisplay inbrief scanIdentification Spare part no.Vitocrossal 300, type CT3 1040 7435 870 7837 015Vitocrossal 200, type CM2

186Viessmann NTC 10 kΩ (blue ID label)10110 30 50 70 90 110Temperature in °C0.40.60.8246820Resistance in kΩ1. Pull corresponding plug.2. Check the s

187Viessmann NTC 20 kΩ (orange ID label)80 120 160 200Temperature in °C400.1110Resistance in kΩ0402020 60 100 140 1801. Pull plug aG.2. Check the sen

188X6X8X76 5 4 3 2 1150EinEinTRTRNSTBSTBEinEinTRTRNSTBSTBEinEinTRTRNSTBSTBEinEinTRTRNSTBSTBX46 5 4 3 2 1X5X3150X2150X1150CBGHDBDBDBAFEEEAWiring chambe

189NoteA plug aBÖ must be inserted into everysocket "X1", "X2", "X3" and "X7".Connecting two plug-in adaptorsS

19aJATherm-Control temperature sen-sororReturn temperature sensor T1(accessory)aJBReturn temperature sensor T2(accessory)Vitotronic 100, type GC4BNote

190CGreen LEDDRed LEDEAerialConnection2-core lead, length max. 35 m with across-section of 1.5 mm2.Check receptionDuring reception, the green LED on t

191Changing the rotational direction (if required)AOpen mixerClose mixer1. Pull 3-pole plug A from mixer motor,turn 180° and refit.2. Check the rotat

192For heating mixers DN 40 and 50.Y1Y2 NAUTOMAN52N?1~MAMixer motorBLinked switchOpen mixerClose mixerChanging the rotational directionInterchange cor

193Torque 5 NmRuntime for 90° ∢135 sMixer motorPart no. Z004 344For heating mixers DN 65 and 100.52NY1Y21112AUTOMANN?1~M100%0%AMixer motorBLinked swit

194Manual mixer adjustmentLinked switch B in "MAN" setting.SpecificationRated voltage 230 V~Rated frequency 50 HzPower consumption 4 WIP rat

195Immersion thermostat, part no. 7151 728Contact thermostat, part no. 7151 729L N?1~ML N?CBAAHeating circuit pumpBTemperature controller (tempera-tur

196Part no. 7452 091DE1 Digital input 1DE2 Digital input 2DE3 Digital input 30 – 10 V 0 – 10 V inputfÖPower supplyfÖAPower supply for additionalaccess

197Digital inputs DE1 to DE3Functions: External operating program change-over for heating circuits 1 to 3 sepa-rately External blocking External bl

198Analogue input 0 – 10 VThe 0 – 10 V hook-up provides an addi-tional set flow temperature:0 – 1 V is seen as "no set flow temper-ature".No

199Ordering partsThe following information is required: Serial no. (see type plate A) Position number of the part (from thisparts list)Standard parts

2Please follow these safety instructions closely to prevent accidents and mate-rial losses.Safety instructions explainedDangerThis symbol warns agains

20Pumps with power consumption greater than 2 ALNExternalON/OFFLNN PENLLDCABAPumpBTo the control unitCContactorDSeparate power connection(observe manu

200010601050074000101090108010001040058005200490050005400560013000800160015002000210018001400190051002300370081008001010103010200570031003000420092010

201The following information is required: Serial no. (see type plate A) Position number of the part (from thisparts list)Parts0001 Hinge0008 Supporti

202A01060105007400010025002400380011010901080100010400580092004200520049005000540056001300080016001500200021001800140019005100230037008100800101010301

203Ordering partsThe following information is required: Serial no. (see type plate A) Position number of the part (from thisparts list)Standard parts

204A00150017000100230048010301080040008100140050010201010103010201010100010601040092007400570058002100180020001600130008005100190037008000450042002200

205Rated voltage 230 V~Rated frequency 50 HzRated current 2 x 6 A ~Power consumption 10 WSafety category IIP rating IP 20 D to EN 60529; ensurethrough

206Rated voltage 230 V~Rated frequency 50 HzRated current 2 x 6 A ~Power consumption 10 WSafety category IIP rating IP 20 D to EN 60529; ensurethrough

207Rated voltage 230 V~Rated frequency 50 HzRated current 6A~Power consumption 10 WSafety category IIP rating IP 20 D to EN 60529; ensurethrough appro

208AActuator, mixing valve, heat exchangerset...157Actuator, mod. burner...127Actu

209ERB80 function...98External blocking...40 Boiler...

21Available connections Vitotronic 100, type GC1B Vitotronic 100, type GC4BgSA1Motorised butterfly valve Motorised butterfly valveor Motor for 3-way

210Plug-in adaptor for external safety equip-ment...187Power cable...

2115815 091 GB

212ApplicabilitySerial No.:7441810 7441811 7498901 74418167498906Viessmann LimitedHortonwood 30, TelfordShropshire, TF1 7YP, GBTelephone: +44 1952 675

22Connection via plug aBÖ.The plug-in adaptor for external safetyequipment (accessory, see chapter"Components") can be used for connect-ing

23Connection at plug aBÖ.STBAEINTREINTRNSTBAJumper "TR" – "ON/TR"Insert jumper "TR" – " burner control unitON/TR&qu

24STBABEINTREINTRNSTBAFloating contactBJumper "TR" – "ON/TR"Remove jumper "TR" – "ON/TR".NoteConnect only safe

25146A2 31AExternal changeover(floating contact)Contact open: Modulating operationContact closed: Two-stage operationCodeSet code "02:2" in

26Contact Closed OpenA The boiler is blocked and hasbeen removed from the boilersequence. Type GC1B:The motorised butterfly valve orthe 3-way mixing

2741L B4S3T2T1N41Störung H1BZNPEL1STBTRL1 N T1 T2 S3 B4ATo the control unitBTo the burnerTerminal codesL1 Phase via high limit safety cut-out to the b

28BNBKBU90T7 T8T6ATo the control unitBTo the burnerTerminal codesT6, T8 Control chain burner stage 2 ONor modulation controller OpenT6, T7 Control cha

29AB41LB4S3T2 T1 N41L B4S3T2T1NATo the control unitBTo the burnerTerminal codesL1 Phase via high limit safety cut-out to the burnerPE Earth conductor

3If you smell flue gasDangerFlue gas can lead to life threat-ening poisoning. Shut down the heating system. Ventilate the installation site. Close

3090BNBKBUAT7T8T690T7T8T6BBNBKBUATo the control unitBTo the burnerTerminal codesT6, T8 Control chain burner stage 2 ONor modulation controller OpenT6,

31FTRK1F2aABDCGLHKET6 T7 T8AControl unitBMain contactor (on site)CThree-phase burnerDBurner power supplyEMain contactor switchingFSafety chain (high l

32TRK1F2aABDCFKGHET6 T7 T8AControl unitBMain contactor (on site)CThree-phase burnerDBurner power supplyEMain contactor switchingFControl chain stage 1

33DangerIncorrect wiring can lead to seri-ous injury from electrical currentand result in appliance damage. Route LV leads < 42 V and> 42 V/230

34A1215220295040156A13/2517143146B5AB1451451285252202022M3M2M3M2M3M2LONExtension for heating circuits 2 and 3with mixer? M2/M3Flow temperature sensors

35PCB 230 V~sÖA1Heating circuit pumporPrimary pump, cylinder loadingsystemsACirculation pump for cylinderheating (accessory)sKDHW circulation pump (on

36Fitting location for outside temperature sensor North or north-westerly wall, 2 to2.5 m above ground level; in multistorey buildings, in the upper

37Pumps in the underfloor heating circuit1~M1~M20LNABCsÖsÖControl unitAPrimary pumpBTemperature limiterCSecondary pump(downstream of the system separa

3850L NRated voltage 230 V~Rated current Max. 4 (2) A~Recommended connecting cable H05VV-F3G0.75 mm2or H05RN-F3G0.75 mm2NoteAll heating system faults

39Plug aVHEA1 extension 146AB2 31AFloating contactB Plug aVH of the control unit B[{SDE[{DDE[{ADEAAFloating contactBEA1 extensionCodesPlug aVHEA1 ex

4Repair work!Please noteRepairing components that fulfil asafety function can compromisethe safe operation of the sys-tem.Faulty components must berep

400 – 1 V≙ No default set flow tempera-ture1 V≙ Set value 10 °C10 V≙ Set value 100 °CObserve coding address "1E" in the"General" g

41Plug aVDEA1 extension 143AB2 31AFloating contactB Plug aVD of the control unit B[{SDE[{DDE[{ADEAAFloating contactBEA1 extensionCodesPlug aVDEA1 ex

42143BA1 2 3AExternal "Mixer open"(floating contact)BExternal "Mixer close"(floating contact)CodesExternal "Mixer open"

43Plug aVDExtension EA1 The changeover can be achieved separately for heat-ing circuits 1 to 3.143AB2 31AFloating contactB Plug aVD on control unit B

44CodesPlug aVDExtension EA1Via coding address "91" in the"General" group, the functioncan be assigned to the heatingcircuits.Set

45Connection with Viessmann LON cableCA AABCBInstallation spacing ≤ 7 mAControl unit or VitocomBLON cable, 7 m longCTerminatorConnection with Viessman

46CTerminatorDLON plugEUp to 30 subscribersConnection with LON cable, on-site cable and LON socket≤ 900 mDCBCB B BED DDEA AFAInstallation spacing ≤ 90

47DirectivesRegulationsConnect the power supply and imple-ment all safety measures (e.g. RCD cir-cuit) in accordance with IEC 60364, theconnection req

48L1PENBUBNGNYEN L40AMains voltage 230 V~BFuse/MCBCMains isolator, 2-pole (on-site)DJunction box (on-site)1. Check whether the power cable to thecont

49Power supply of the Vitotronic 100 via a mains filter unitL1PENBUBNGNYEN L40AMains voltage 230 V~BFuse/MCBCMains isolator, 2-pole (on-site)DJunction

5Installation instructionsIntended use... 9Install

5040156BKGNYEGYBNEFGaBH fÖfÖ aBHETo the mains filter unitFMains filter unit connecting cableGTo the control unit4. Insert plug fÖ and plug aBH of them

51NoteStep 1 applies only to theVitotronic 300-K.A2.4.7.6.5.1.8.3.ACable locking tabOpening and closing the Vitotronic 100 and Vitotronic 300-K contro

522.1.3.Opening and closing the Vitotronic 100 and Vitotronic 300-K control unitsOpening the control unit5815 091 GB

53Commissioning step Vitotronic 100 Page Vitotronic300-KPageType GC1B Type GC4B Type MW1B Checking the high limitsafety cut-outX — 53 — —Selecting

54Only Vitotronic 300-K, type MW1BAt the commissioning stage, the displayis in German (factory setting).SpracheDanskCeskyBulgarskiDeutschWählen mitêêç

55Code Group Function"01" 2 Multi boiler system"4d" 1 Plug sL function"98" 1 Viessmann system number"9C" 1

56Matching the control unit to a modulating burnerOnly Vitotronic 100, type GC1BNoteThe burner must be fully adjusted. Toachieve a wide modulating ran

57Code Group Function"4C" "General"Plug sÖ function"4d" "General"Plug sL function"4E" "General&

58 A LON communication module mustbe fitted into every Vitotronic 100 (seepage 18).NoteThe LON communication module is anintegral part of the Vitotro

59A B C D E With LON com-municationmodule.Code "76:1" ingroup 1 recog-nised automati-callyWith LON com-municationmodule.Code "7

6Service instructionsCommissioning, Vitotronic 100 and Vitotronic 300-KCommissioning steps...

60A B C D E — — Control unittransmits out-side tempera-ture.Code "97:2" inthe "General"groupControl unitreceives theoutsid

61Note Vitotronic 100:During the subscriber check, the dis-play for the relevant subscriber flashesfor approx. 1 min. Vitotronic 200-H:During the su

62Display Explanation6Actuator at output sL on7Actuator at output gS open8Actuator at output gS neutral9Actuator at output gS close11Central fault mes

63Display Explanation"Central fault mess." ONCentral fault message at output gÖ"Heating circ pumpHC2"ONActuator at output sÖ M2&qu

64Only Vitotronic 300-KThe heating curves represent the rela-tionship between the outside tempera-ture and the boiler water or flow temper-ature.To pu

65The heating curve is offset along the setroom temperature axis. With the heatingcircuit pump logic function enabled, thecurve modifies the starting

66ABBoiler water orFlow temperature in °C110+20 -20Outside temperature in °C3.41.40.2AChanging the slopeBChanging the level (vertical paralleloffset o

67Service menu:1. Press OK and simultaneously forapprox. 4 s. flashes on the display.2. / for the required function (see thefollowing table).Symbol

68Brief scan Display0 — Systemscheme(here 0)Software versionControl unitSoftwareversionProgram-ming unit2 — — Maximum flue gas temperature; only forth

69After the limits set at coding address"1F", "21", "23" in group 2 have beenreached, the red fault indicator begins tof

7Code 1, Vitotronic 100Calling up coding level 1... 119Group 1...

70Service menu:1. Press OK and simultaneously forapprox. 4 s.2. / for the required menu (see the fol-lowing diagram).Service menu overviewServiceDi

71Service menu:1. Press OK and simultaneously forapprox. 4 s.2. "Diagnosis"3. / for the required group, for example"General".No

72 1 2 3 4 5 61: System schemes 01to 10Software version, con-trol unitSoftware version,programming unit2: 0 0 0 Device identificationZE-ID3: 0 0 Numb

73 1 2 3 4 5 611: 0 0 Softwareversion,extensionfor heatingcircuits 2and 3 withmixer0 Softwareversion,extensionfor heat-ing cir-cuits 2and 3 withmixer

74In the event of a fault, the red fault indi-cator flashes at the control unit. The 2-digit fault code and flash on the dis-play.NoteAny connected

75Deleting fault historyWhile the list is displayed, press OK until flashes. OK to confirm.Fault codesDisplayedfault codeSystem characteris-ticsCause

76Displayedfault codeSystem characteris-ticsCause Measures68 Type GC1B:Boiler with maximumtemperature, no out-put reduction, mixingvalve return temper

77Displayedfault codeSystem characteris-ticsCause MeasuresA2 Boiler cools down. Fault, safety equip-ment at "X2" ofplug-in adaptor 2for exte

78Displayedfault codeSystem characteris-ticsCause Measuresb5 Control mode Internal error Check PCB and plug-inconnection; replace PCBif required.b6 Co

79Displayedfault codeSystem characteris-ticsCause MeasuresC8 Boiler cools down. Fault, low water in-dicator at "X7" ofplug-in adaptor 1for e

8Temperature limiter for limiting the maximum temperature... 195EA1 extension...

80Displayedfault codeSystem characteris-ticsCause Measuresd2 Control mode Communication er-ror, plug-in adaptor2 for external safe-ty equipmentCheck t

81System characteris-ticsCause MeasuresE1 Burner control unit ina fault state.Valve 1 not tight /gas pressureswitch 2 does notopen.Check setting of ga

82System characteris-ticsCause MeasuresF1 Burner control unit ina fault state; systemcools down.Excessive flue gastemperature; ex-cessive gasthroughpu

83System characteris-ticsCause MeasuresF4 No flame builds dur-ing safety time; ioni-sation flame monitorreports no flame sig-nal.Insulation body ofign

84System characteris-ticsCause MeasuresF6 Gas pressure switchreports no gas pres-sure.Gas shut-off valveclosed; gas pres-sure switch faulty;multiple p

85System characteris-ticsCause MeasuresF9 No fan feedback. Fan faulty. Fan may beblocked by dirt. External fanpower supply notconnected orfaulty.

86In the event of a fault, the red fault indi-cator flashes at the control unit. "Fault"is displayed and flashes.The fault code is display

87Press OK and simultaneously forapprox. 4 s.Fault historyDelete?Display?Select with(Fault codesDisplayedfault codeSystem characteris-ticsCause Meas

88Displayedfault codeSystem characteris-ticsCause Measures28 Standalone controlunit without flow tem-perature sensor (flowtemperature may notbe high e

89Displayedfault codeSystem characteris-ticsCause Measures51 With cylinder loadingsystem:Cylinder heating isstarted and stoppedvia cylinder tempera-tu

9The appliance is only intended to beinstalled and operated in sealed unven-ted heating systems that comply withEN 12828, with due attention paid to t

90Displayedfault codeSystem characteris-ticsCause Measures70 Shunt pump con-stantly ON.With cylinder loadingsystem:close 3-way mixingvalve; no DHW hea

91Displayedfault codeSystem characteris-ticsCause Measures94 No solar DHW heat-ingShort circuit, cylin-der temperaturesensor,connection of tem-peratur

92Displayedfault codeSystem characteris-ticsCause Measures9C No solar DHW heat-ingLead break, cylin-der temperaturesensor,connection of tem-perature s

93Displayedfault codeSystem characteris-ticsCause Measuresb5 Control mode Internal error Check PCB is plugged incorrectly.b6 Constant mode Invalid har

94Displayedfault codeSystem characteris-ticsCause Measuresbd Control mode withoutremote controlCommunication er-ror, Vitotrol remotecontrol unit, heat

95Displayedfault codeSystem characteris-ticsCause MeasuresCF Control modeNo communicationvia LONCommunication er-ror, control unitLON communica-tion m

96Displayedfault codeSystem characteris-ticsCause Measuresdd Control mode withoutroom influenceLead break, roomtemperature sen-sor, heating circuitwit

97Brief description The boiler water temperature is regu-lated by starting and stopping theburner or through modulation. The set boiler water temper

98Switching hysteresis, burnerPermanent switching hysteresisCode "04:0"Burner+2ONOFF-2lowheat demandaverageheat demandhighheat demandTimeset

99BurnerONOFFlowheat demandaverageheat demandhighheat demandTime+17-3+3setControl sequenceBoiler goes cold(set value −2 K)The burner start signal is s