Viessmann VITOTRONIC 100 GC1B Instructions d'exploitation

Installation and serviceinstructionsfor contractorsVIESMANNVitotronic 100Type GC1BDigital boiler control unitFor applicability, see the last pageVITOT

10Equipment requiredPos. Designation1Boiler2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS5Therm-Control temperature sensortPON/OFF swi

100L1PENBUBNGNYEN L40APower supply 230 V~BFuseCMains isolator, two-pole (on-site)DJunction box (on site)1. Check whether the power cable to thecontro

1013.5.6.A1.7.4.2.ACable locking tabInstallation sequenceFitting the front part of the control unit5600 634 GBInstallation

1022.1.3.Installation sequenceOpening the control unit5600 634 GB

103The minimum circulation volume shouldbe 10 % of the circulation volume at ratedload.Reduce the heat consumption as far aspossible.1. Hold down the

104Matching the control unit to the two-stage burnerMatching coding addresses according to the burner usedAddress Meaning Setting03:... Fuel Gas opera

105Address Meaning Setting09:... Hundreds of the maximum burneroutputExample: Max. burner output: 225kW – select: 215:... Modulation range runtime Cal

106The following actuators (relay outputs) can be switched subject to systemequipment level:Display Explanation0 All actuators are switched off1 Burne

107Multi boiler system with Vitotronic 100 and Vitocom 300Set the LON subscriber numbers andfurther functions via code 2.NoteIn the same LON system, t

108The PIN code of a connected Vitocom100 can be entered at the Vitotronic100.Vitocom 100 installation instruc-tions1. Press OK and simultaneously

1091. Press OK and simultaneously forapprox. 4 s. flashes on the display.2. Select required function. See the fol-lowing pages.Leaving the service

11Pos. DesignationrOKM BUS distributor, for several KM BUS subscriberstQLON communication module for communication with the following compo-nents:Exte

110Brief scan Display6 Number of KM BUS sub-scribersNumber of LON subscrib-ers7 SNVT con-figuration0:Auto1:ToolSoftware version commu-nication coproce

111Brief scan Display Extension EA1F3Output 157configura-tion(value cor-respondsto code 5Csetting)Output 157switchingstate0: OFF1: ONInput DE1switchi

112a 150°C Acknowledging and resetting servicePress OK to acknowledge a servicemessage.NoteAn acknowledged service message thatwas not reset reappears

113In the event of a fault, the red fault dis-play flashes at the control unit. On theprogramming unit display, the 2-digitfault code and flash.Outp

114Fault codesDisplayedfault codeSystem characteris-ticsCause Measures0F Control mode. Service"0F" is only dis-played in the faulthistory.Se

115Displayedfault codeSystem characteris-ticsCause Measures50 Cylinder primarypump "ON":Set DHW tempera-ture = Set boiler watertemperaturePr

116Displayedfault codeSystem characteris-ticsCause Measures59 With primary storesystem:Cylinder heating isstarted and stoppedby cylinder tempera-ture

117Displayedfault codeSystem characteris-ticsCause Measures90 Control mode. Short circuit, tem-perature sen-sor /,Connection at thesolar control mod-u

118Displayedfault codeSystem characteris-ticsCause Measures94 No solar DHW heat-ing.Short circuit, cylin-der temperaturesensor, connectionof temperatu

119Displayedfault codeSystem characteris-ticsCause Measures9C Control mode. Lead break, cylin-der temperaturesensor, connectionof temperaturesensor %

12Low voltageSTS1111461431512145145LONAGS30349T153/212KTS5B5A17B17A235314549145145404040A1570-10V41422114534DE3214542DE242DE1156123448KM BUS4445464743

120Displayedfault codeSystem characteris-ticsCause MeasuresA2 Boiler cools down. Fault, safety equip-ment at "X2" ofplug-in adaptor 2for ext

121Displayedfault codeSystem characteris-ticsCause MeasuresAd Control mode. Butterfly valve con-figuration error:Code "0C:2", "0C:3&quo

122Displayedfault codeSystem characteris-ticsCause MeasuresC2 No solar DHW heat-ing.Lead break, KMBUS to solar con-trol module orVitosolic.Check KM BU

123Displayedfault codeSystem characteris-ticsCause MeasuresCd Control mode. Vitocom 100 com-munication fault.Check connections andthe Vitocom 100.Inst

124Displayedfault codeSystem characteris-ticsCause Measuresd7 Control mode. Input DE2 at exten-sion EA1 reports afault.Remove fault at applianceconcer

125Brief description The boiler water temperature is regu-lated by starting and stopping theburner or through modulation. The set boiler water tempe

126Boiler protection functionTherm-Control(Start-up system) For heating systems with distributorinstalled close to the boiler. Requirement:The boile

127Connection in heating systems with-out LONSingle boiler system Plug sÖA1 of the Vitotronic is used asswitching contact for the Therm-Con-trol. Req

128 Requirement:– The boiler water flow rate must beable to be reduced by at least 50 %.– With shunt pump:Size the shunt pump to approx. 30 %of the t

129Multi boiler systems with boiler circuitpump and 3-way mixing valve Temperature sensor T1 records thereturn temperature. The flow rate is proport

13Wiring diagramClosing mixers installed downstream viaTherm-Control temperature sensor inheating systems with heating circuit con-trol units that are

130Multi boiler system Plug sÖA1 of the Vitotronic is used asswitching contact. Required code: "0d:1" in category 2"Boiler" and &

131Connection in heating systems with-out LONMulti boiler system Plug sÖA1 of the Vitotronic is used asswitching contact. Required code: "0d:1&q

132The switching hysteresis, i.e the burner runtime varies subject to actual heatdemand.ERB50 functionCode "04:1"Subject to heat demand, val

133Boiler heats upThe burner stopping point is determinedby the shutdown differential (codingaddress "13" in category 2 "Boiler").

134Set the following codes: "4C:1", "4E:2" incategory 1 "General", "55:3" in cate-gory 3 "DHW" (see

135The DHW cylinder goes cold (set value−2.5 K; change via coding address "59"): The set boiler water temperature isadjusted 20 K higher th

136 The 3-way mixing valve opens andthen regulates to the defaulted setDHW temperature. The circulation pump for cylinder heat-ing cycles (short ter

137NoteCodes that have not been assigned dueto the heating system equipment level orthe setting of other codes are not dis-played.1. Press OK and s

138CodingCoding in the delivered condition Possible changeSystem design00:1 One heating circuit with-out mixer (heating circuit1), without DHW heating

139CodingCoding in the delivered condition Possible changeSystem type01:1 Single boiler system. 01:2 Multi boiler system withcascade control via LON(e

14Single boiler system: Boiler with shunt pump and 3-way mixingvalve for return temperature raisingHydraulic installation schemeKWWW101113 1312--2/21-

140Coding in the delivered condition Possible changeFlue gas monitor1F:0 With flue gas temperaturesensor:Flue gas temperature isnot monitored for serv

141Only in conjunction with solar controlmodule, type SM1.CodingCoding in the delivered condition Possible changeSpeed control solar circuit pump02:0

142Coding in the delivered condition Possible changeExtended solar control functions20:0 No extended control func-tions enabled.20:1 Additional functi

143Note At coding level 2, all codes are acces-sible, including the codes in codinglevel 1. Codes that have not been assigneddue to the heating syst

144CodingCoding in the delivered condition Possible change00:1 Heating circuit withoutmixer A1,without DHW heating.00:0 Set automatically, if codes&qu

145Coding in the delivered condition Possible changeHeating circuit pump,heating circuit withoutmixer A1 (heating cir-cuit 1).33:3 Circulation pump fo

146Coding in the delivered condition Possible change52:0 Without flow temperaturesensor for low lossheader.52:1 With flow temperature sen-sor for low

147Coding in the delivered condition Possible change5E:0 Function input DE2 atextension EA1:Not assigned.5E:1 Not assigned.5E:2 External demand with s

148Coding in the delivered condition Possible changeNoteAllocate each number onlyonce. 78:1 LON communication ena-bled.78:0 LON communication disa-ble

149Coding in the delivered condition Possible change9b:0 No set minimum boilerwater temperature forexternal demand.9b:0to9b:127Set value for externald

15Equipment requiredPos. Designation1Boiler2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS5Shunt pump (on site)63-way mixing valve7Temp

150Coding in the delivered condition Possible changeDelivered conditionspecified by the boilercoding card.04:1 Switching hysteresis, heatdemand-depend

151Coding in the delivered condition Possible change0C:5 Modulating butterflyvalve, independent of theset boiler water tempera-ture.0C:0 No function.0

152Coding in the delivered condition Possible changeDelivered conditionspecified by the boilercoding card.1A:... Start optimisation in min.Delivered c

153Coding in the delivered condition Possible change24:0No display.24:1 display (the address isautomatically set and mustbe manually reset after ase

154Coding in the delivered condition Possible change2C:602d:0 Shunt pump control func-tion only "ON" if the boileris enabled.2d:1 Shunt pump

155Coding in the delivered condition Possible changeThe set boiler water tem-perature is determined bythe highest system flowtemperature demand.The se

156Coding in the delivered condition Possible changeCylinder heating startpoint at set value x 0.7.6A:75 Runtime, servomotor,mixing valve, heatexchang

157Coding in the delivered condition Possible change04:4 Controller amplification ofthe speed control 4 %/K.04:1to04:10Controller amplificationadjusta

158Coding in the delivered condition Possible change0b:0 Frost protection functionfor solar circuit switchedoff.0b:1 Frost protection functionfor sola

159Coding in the delivered condition Possible change Target temperaturecontrol switched on(code "10:1"):Temperature at whichthe solar heate

16Pos. DesignationrOKM BUS distributor, for several KM BUS subscriberstQLON communication module for communication with the following compo-nents:Exte

160Coding in the delivered condition Possible change20:8 Solar heating via externalheat exchanger with addi-tional temperature sensor.20:9 Solar heati

161Coding in the delivered condition Possible changeStart temperature forthermostat function >stop temperature for ther-mostat function:Thermostat

162Coding in the delivered condition Possible changeOnly when setting code"20:8".26:2 Priority for DHW cylinder 2– without alternate heat-in

163OverviewDesignsConnection and wiring diagram5600 634 GBService

164A2 Main PCB low voltageA3Main PCB 230 V∼A6 Programming unitA7 Optolink PCB/emissions testswitchA8 PCBA9 Boiler coding cardA10 LON communication mod

165Main PCB low voltage§Boiler water temperature sensor%ACylinder temperature sensor%BCylinder temperature sensor 2 forprimary store system)Flow tempe

166aGFlue gas temperature sensoraJATherm-Control temperature sen-sororReturn temperature sensor T1aJBReturn temperature sensor T2orTemperature sensor

167Main PCB 230 V∼DesignsConnection and wiring diagram (cont.)5600 634 GBService

168sÖPrimary pump, primary storesystemorCirculation pump – flue gas/water heat exchangerorSwitching outputsACirculation pump for cylinderheating (acce

169Boiler Boiler coding cardService menu dis-play "Diagnosis"category"General"Identifica-tionSpare partno.Vitocrossal 300, type CT

17Low voltage1461431512AGS349T13/212KTS5B5A17B17A351234444546472831145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM BUS43T27ST

170Viessmann NTC 10 kΩ (blue identifi-cation)10110 30 50 70 90 110Temperature in °C0.40.60.8246820Resistance in kΩ1. Pull corresponding plug.2. Chec

1712. Check the sensor resistance andcompare it with the curve.3. In the case of severe deviation, checkthe installation and replace the sen-sor if

172BExternal safety equipmentX1 Additional high limit safety cut-outorTemperature limiterX2 Minimum or maximum pressurelimiterX3 Maximum pressure limi

173DE1 Digital input 1DE2 Digital input 2DE3 Digital input 30 - 10 V 0 - 10 V inputfÖPower supplyfÖ APower supply for additionalaccessoriesaBJCentral

174When connecting external contacts,observe the requirements of safety cat-egory II, i.e. 8.0 mm air-gap and creeppath or maintain a 2.0 mm insulatio

175ATo the burnerBTo the control unitColour coding to DIN IEC 60757BK blackGN/YE green/yellowFunction checkPress the rotary selector at the motorand s

176Emergency modePress the rotary selector on the motorand turn clockwise to the limit, i.e.beyond position "3".Components Secondary air dev

177When ordering spare partsQuote the part and serial no. (see typeplate A) and the item no. of the requiredpart (as per this parts list).Standard par

178010601050074000101090108010001040058005200490050005400560013000800160015002000210018001400190051002300370081008001010103010200570031003000420092010

179Rated voltage230 V∼Rated frequency 50 HzRated current2 x 6 A∼Power consumption 10 WSafety category IIP rating IP 20 D to EN 60529, ensure through d

18Required code Category Function0C:1 2 "Boiler" Constant return temperature control.Preparing for installationSystem example 2, ID: 460542

180AAC burner...92Adaptive cylinder heating...134Auxiliary function for DHW heating..133BBoiler

181HHeating system scheme...9, 14High limit safety cut-out Additional...172 Adjusting...

182Third party control unit connection Multi boiler system...84Three-phase burner Safety chain, potential-free...96

1835600 634 GB

184ApplicabilitySerial No.:7441810 7498901Viessmann LimitedHortonwood 30, TelfordShropshire, TF1 7YP, GBTelephone: +44 1952 675000Fax: +44 1952 675040

19Single boiler system with VitocrossalHydraulic installation schemeKWWW10111312--2/21--3--2/3/2--2--230V----21----5A----KM BUS----3/2--15--2/5A--13Pr

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

20Equipment requiredPos. Designation1Boiler2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS5Neutralising systemtPON/OFF switchqPDHW cyli

21Electrical installation scheme230 V / 50 Hz2151904115015615640502920A152A12128UPSB1230444SDBSDBWB9041471452230 V/ 50 HzS731323334145504040NLLNLNLNLN

22Low voltageSTS11114614315123493/212KTS5B5A17B17A23123444454647145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM BUS4313213213

23Required code Category Function0C:0 2 "Boiler" Without Therm-Control temperature sensor.System example 4, ID: 4605423Multi boiler system:

24Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS4Therm-Control temperature sensor5Motorised

25Pos. DesignationrE1 switching output (floating changeover contact): Switching a feed pump to a substationrIVitocom 100rOKM BUS distributor, for sev

26Low voltage11461431512145145LONAGS30349T13/212KTS5B5A17B17A23514549145145404040A1570-10V41422114534DE314542DE242DE1156123448KM BUS4445464743412/311/

27Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:3 2 "Boiler" Multi b

28Multi boiler system: Any boiler with shunt pump for return tem-perature raisingHydraulic installation schemeKWWW181922 222010317131 11--2/17A----2/3

29Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS6Flow temperature sensor (connection to hig

3If you smell flue gasDangerFlue gas can lead to life-threat-ening poisoning. Shut down the heating system. Ventilate the boiler room. Close all do

30Pos. DesignationrPExtension EA 1rQ1 analogue input (0 – 10 V): Default of the set boiler water temperature and enable boilerrW3 digital inputs: Ex

31Electrical installation scheme230 V / 50 Hz151904115015615640502920A152A1212830444SDBSDBWB904147145230 V/ 50 HzS731323334BP145504040212/212/916/714/

32Low voltage1461431512AGS349T13/212KTS5B5A17B17A35T2123444454647212/815/1017/313/1145145LON3014549145145404040A1570/-10V41422114534DE3214542DE242DE11

33Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:2 2 "Boiler" Multi b

34Multi boiler system: Any boiler with boiler circuit pump and 3-way mixing valve for return temperature raisingHydraulic installation schemeKWWW16172

35Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS6Flow temperature sensor (connection to hig

36Pos. DesignationrW3 digital inputs: External blocking External blocking with fault message Fault message inputrE1 switching output (floating chan

37Electrical installation scheme230 V / 50 Hz151904115015615640502920A152A1212830444SDBSDBWB904147145230 V/ 50 HzS731323334KKP145504040211/713/915/211

38Low voltage1461431512AGS349T13/212KTS5B5A17B17A351234444546471145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM BUS4351814/31

39Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:3 2 "Boiler" Multi b

4Installation instructionsPreparing for installationProduct information...

40Multi boiler system: Vitocrossal and Vitoplex or Vitorond withTherm-Control (with a low temperature heating circuit)Hydraulic installation schemeKWW

41Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS4Flow temperature sensor (connection to hig

42Pos. DesignationrE1 switching output (floating changeover contact): Switching a feed pump to a substationrIVitocom 100rOKM BUS distributor, for sev

43Low voltage1461431512AGS349T1133/212KTS5B5A17B17A35123444454647210/311/1145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM BUS

44Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:3 2 "Boiler" Multi b

45Multi boiler system: Vitocrossal and low temperature boiler withshunt pump for raising the return temperature (with a low tem-perature heating circu

46Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS4Flow temperature sensor (connection to hig

47Pos. DesignationrW3 digital inputs: External blocking External blocking with fault message Fault message inputrE1 switching output (floating chan

48Electrical installation scheme230 V / 50 Hz151904115015615640502920A152A1212830444SDBSDBWB904147145230 V/ 50 HzS731323334BP14550404021510/14210/NLLN

49Low voltage1461431512AGS349T1133/212KTS5B5A17B17A35T2121234444546472311/10/1145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM

5Matching the coding addresses to the system version... 103Checking actuators and sensors...

50Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:3 2 "Boiler" Multi b

51Multi boiler system: Vitocrossal and low temperature boiler with3-way mixing valve and boiler circuit pump (with a low tempera-ture heating circuit)

52Equipment requiredPos. Designation1Boiler I2Vitotronic 100, type GC1B3Boiler water temperature sensor KTS4Flow temperature sensor (connection to hig

53Pos. DesignationrW3 digital inputs: External blocking External blocking with fault message Fault message inputrE1 switching output (floating chan

54Electrical installation scheme230 V / 50 Hz151904115015615640502920A152A1212830444SDBSDBWB904147145230 V/ 50 HzS73132333412145504040210/210/13NLLNLN

55Low voltage1461431512AGS349T1143/212KTS5B5A17B17A35123444454647210/311/1145145LON3014549145145404040A1570-10V41422114534DE3214542DE242DE115648KM BUS

56Required code Category Function01:2 2 "Boiler" Multi boiler system with external cascade control viaLON.01:3 2 "Boiler" Multi b

57KWWW--2/5A--8102--230V----21----52A1----20A1----17B----5A--1--2/5B--934567-2/21---2/20A1---2/52A1---2/17B----5B----11Equipment requiredPos. Designat

58Electrical installation schemeZP230 V/ 50 Hz21140502920A152A12128UPSB6230 V/ 50 Hz54Low voltage114614315121451453493/2125B5A17B17A1234Standard LPSTS

59Required code Category Function4C:1 1 "General"Primary pump connection at plug sÖ A1.4E:2 1 "General"Motor connection for 3-way

6Parts list... 177Specification...

60System with flue gas/water heat exchangerSystem with flue gas/water heat exchanger, with shunt pump, ID: 4605083Hydraulic installation schemeKWWW132

61Pos. DesignationqPVitotrans 300 IIqQCirculation pumpqWMotorised butterfly valveqELow temperature heating circuitqRContactor relayWiring diagramConne

62System with flue gas/water heat exchanger, with boiler circuit pump, ID:4605084Hydraulic installation schemeKWWW1332981 74 10561112Equipment require

63Pos. DesignationqELow temperature heating circuitqRContactor relayWiring diagramConnection of circulation pump andmotorised butterfly valve for the

64AL?NL?NL?NL?NfÖ[]A2[]A1f-]AsAsÖ sK sAsÖ sKL1 NqR5 qQM1~M1~/6 qW/?K6230 V / 50 HzRated current 4(2) A~Recommended Connecting cable H05VV-F3G0.75 mm2

65NoteWhen connecting plugs aVD, aVH andsA, bundle the individual wires of thecables closely to the terminals.This prevents the wires from drifting in

66aJ BReturn temperature sensor T2(accessory)ortemperature sensor primary storesystem (accessories)aVDExternal hook-upaVGKM BUS subscriber (accessory)

67CDDABACables with moulded strain reliefBOn-site cables; strip up to100 mm insulationCPlug connection diagramDCover for plug connection diagramInsert

68Insert the boiler coding card through therecess in the cover into slot "X7".Adjusting the high limit safety cut-out (if required)The high

69Adjustment to 100 °C1.2.95110120°C3.Changing the temperature controller setting (if required)The temperature controller is suppliedwith a factory se

7This document describes Vitotronic 100when used: in a single boiler system in a multi boiler system with higherthird party control unitThese instru

70Adjustment to 100 °C!Please noteExcessive DHW temperaturescan damage the DHW cylinder.If the system is operated in con-junction with a DHW cylinder,

711212 12912 12 12 12 1212 123 5A 5B 17A 17B 151215Main PCB, low voltage§Boiler water temperature sensor%ACylinder temperature sensor%BCylinder temper

72Pumps 230 V~BA1~MAPumpBTo the control unitRated current 4(2) A~Recommended connecting cable H05VV-F3G0.75 mm2or H05RN-F3G0.75 mm2Pumps with power c

73Pumps 400 V~LNL1 L2 L3 N PEAC3~MBAPumpBTo the control unitCContactorFor switching the contactorRated current 4(2) A~Recommended connecting cable H0

74M1~52OpenCloseRated voltage 230 V~Rated current max. 0.2 (0.1) A~Recommended ConnectingcableH05VV-F4G0.75 mm2or H05RN-F4G0.75 mm2Runtime 5 to 199 s

75!Please note'Live' contacts lead to short cir-cuits or phase failure.The external connections mustbe potential-free.ABCDSTB N STBTR TRON O

76STBAEINTREINTRNSTBAJumper "TR" – "ON/TR"Insert jumper "TR" – "ON/TR" at "TR" –"ON".The b

77Plug aBÖExtension EA1 STBABEINTREINTRNSTBAFloating contactBRemove jumper "TR" – "ON/TR" B[{SDE[{DDE[{ADEAAFloating contactBExt

78Connection at plug aVH.!Please note'Live' contacts lead to short cir-cuits or phase failure.The external connection must bepotential-free.

79High limit safety cut-out 110 °C 100 °CTemperature controller 100 °C 87 °CElectronic maximum boiler water temperature limit,coding address "06&

8 For connecting a single boiler systemto a higher third party control unit, seepage 78. For connecting a multi boiler system toa higher third party

80146ABC1431 2 31 2 3ABurner stage 1 "ON"BBurner stage 2 "ON"CExternal load-dependent startingExternal burner start – burner stage

81Low temperature boiler with modulating burner (on-site modulation controller)Burner connection: Connect plug fA of Vitotronic 100 tothe burner. Plug

82CReduce burner output (modulationcontroller)DIncrease burner output (modulationcontroller)EPlug to the burnerColour coding to DIN IEC 60757BK blackB

83901431 2 3BCDBKBNBU1 2 3AE41LB4S3T2 T1 N41L B4S3T2T1NT7T8T6APlug to the control unitBBurner with base load "ON"CReduce burner output (modu

84The boiler water temperature is limitedby the electronic maximum tempera-ture limiter, if that is set below that ofmechanical temperature controller

85External demand via 0 – 10 V inputConnection at 0 – 10 V input at exten-sion EA1 on each Vitotronic 100 (acces-sory, see page 173).L?NL?NfÖSPaBJ230

86146A1 2 3ABoiler enable(floating contact)Make connection at plug aVH.NoteThis contact must always be closed onthe lead boiler.Contact Closed OpenABo

87External burner start – burner stage 1Contact at terminals "1" and "2" of plugaVD: Contact closed:Burner stage 1 is switched on

88Low temperature boiler with modulating burner (on-site modulation controller)Burner connection: Connect plug fA of Vitotronic 100 tothe burner. Plug

89CBurner with base load "ON"DReduce burner output (modulationcontroller)EIncrease burner output (modulationcontroller)FPlug to the burnerCo

9Single boiler system: Boiler with Therm-ControlHydraulic installation schemeKWWW101113 1312--2/21--31--2/3/2--2--230V----21----5A----KM BUS----17A---

9090ECDBKBNT7T8T6BU146 1431 2 31 2 3ABC41LB4S3T2 T1 N41L B4S3T2T1NAPlug to the control unitBBoiler enableButterfly valve "Open" or "Clo

91The boiler water temperature is limitedby the electronic maximum tempera-ture limiter, if that is set below that ofmechanical temperature controller

92Start boiler as the last one in theboiler sequenceContact at terminals "2" and "3" of plugaVD: Contact closed:The boiler is sta

9341L B4S3T2T1N41Störung H1BZNPEL1STBTRL1 N T1 T2 S3 B4ATo the control unitBTo the burnerTerminal codesL1 Phase via high limit safety cut-out to the b

94BNBKBU90T7 T8T6ATo the control unitBTo the burnerTerminal codesT6, T8 Control chain burner stage 2"ON" or modulation controller"OPEN&

95AB41LB4S3T2 T1 N41L B4S3T2T1NATo the control unitBTo the burnerTerminal codesL1 Phase via high limit safety cut-out to the burnerPE Earth conductor

9690BNBKBUAT7T8T690T7T8T6BBNBKBUATo the control unitBTo the burnerTerminal codesT6, T8 Control chain burner stage 2"ON" or modulation contro

97FTRK1F2aABDCGLHKET6 T7 T8AControl unitBMain contactor (on site)CThree-phase burnerDThree-phase burner power supplyEMain contactor controlFSafety cha

98Safety chain not potential-freeNoteIf there is a jumper from the external con-ductor to the control voltage in theburner, it may have to be removed.

99DirectivesRegulationsCarry out the power supply connectionand all earthing measures (i.e. RCD cir-cuit) in accordance with IEC 60364, therequirement