Viessmann VITOTRONIC 300-K Instructions d'exploitation

VITOTRONIC 300Installation and service instructionsfor heating engineersVitotronicĂ300typeĂKW3Weather-compensated digital boiler and heating circuit c

M2BECAM3HFDGKA110Heating system designsSystem version 5One direct connected heating circuit without mixer and two mixer circuits5862Ă297ĂGB

100CodingCode 1 (cont.)Coding in the delivered conditionPossible changeMax. boiler temp.06 : 85 Maximum limit of theboiler water temperatureset to 85

101CodingCode 2The summary from page 103 lists all possible coding addresses.The control unit display only shows those coding addresses, which may bea

102CodingCode 2 (cont.)Calling up code 21. Press L and G simultaneouslyfor approx. two seconds;confirm with d.2. Select the required coding addresswit

103CodingCode 2 (cont.)SummaryCoding in the delivered condition Possible changeSystem diagram (see page 99)Boiler/burner02Ă:Ăăă0 Operation with a sing

104CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler/burner (two-stage) (cont.)11Ă:Ăă20 Hook-up delay(integral) = 2 560 Ks(Ke

105CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler/burner1FĂ:Ăăă0 With flue gas temp. sensor:The flue gas temperature isnot

106CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler/burner (cont.)32Ă:Ăă70 With control module V:Set boiler watertemperature

107CodingCode 2 (cont.)Coding in the delivered conditionPossible changeDomestic hot water (cont.)61Ă:Ăăă0 The circulation pump willbe started subject

108CodingCode 2 (cont.)Coding in the delivered conditionPossible changeDomestic hot water (cont.)70Ă:Ăăă0 DHW circulation pump ONacc. to time program

109CodingCode 2 (cont.)Coding in the delivered conditionPossible changeGeneral7FĂ:Ăăă1 Detached house 7FĂ:Ăăă0 Multi-occupancy house.Separate settings

11Heating system designsSystem version 5 (cont.)A Boiler with control unitB Domestic hot water cylinderC Mixer circuit M2D Extension kit for mixer cir

110CodingCode 2 (cont.)Coding in the delivered conditionPossible changeGeneral (cont.)86Ă:Ăăă5 Winter starts:last week of the month86Ă:Ăăă1to86Ă:ăă5We

111CodingCode 2 (cont.)Coding in the delivered conditionPossible changeGeneral (cont.)91Ă:Ăăă7 The heating programchangeover (connection viaplug aVD)

112CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuitA0Ă:Ăăă0 Without remote control A0Ă:Ăăă1 With Vitot

113CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuit (cont.)A4Ă:Ăăă0 With frost protection A4Ă:Ăăă1 No

114CodingCode 2 (cont.)Coding in the delivered conditionPossible changeMixer circuitA7Ă:Ăăă0 Without mixer economyfunctionA7Ă:Ăăă1 With mixer economyf

115CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuit (cont.)b0Ă:Ăăă0*1Incl. remote control:Heating mode

116CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuit (cont.)b5Ă:Ăăă0*1Incl. remote control:Without room

117CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuit (cont.)b8Ă:Ăă10*1With remote control and forthe he

118CodingCode 2 (cont.)Coding in the delivered conditionPossible changeMixer circuitC4Ă:Ăăă1 Mixer algorithmStandardC4Ă:Ăăă0C4Ă:Ăăă2andC4Ă:Ăăă3Mixer a

119CodingCode 2 (cont.)Coding in the delivered conditionPossible changeMixer circuitC9Ă:Ăăă0 Control of an underfloorheating system by flow andreturn

12InstallationSummary of electrical connectionsIllustration shows the bottom part of the control unit as viewed from the rear.5862Ă297ĂGB

120CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuitE9Ă:Ăă20 Speed of the variablespeed pump = 20 % ofm

121CodingCode 2 (cont.)Coding in the delivered conditionPossible changeBoiler circuit/mixer circuitF2Ă:Ăăă0 No time limit for partymode*1F2Ă:Ăăă1toF2Ă

122CodingScreed drying function diagramCoding see page 120.TemperatureĆtime profileĂ1 (code "F1Ă:Ă1")TemperatureĆtime profileĂ2 (code "

123CodingBurner switching hysteresisCoding see page 103.Switching hysteresis 4 K (code "04Ă:Ă0")Heat demand-dependent switching hysteresisER

124Parts listParts listWhen ordering spare parts:Quote the type and serial no. (seetype plate) and the item no. of therequired part (as per parts list

Parts listParts list (cont.)125/1265862Ă297ĂGB072056001010019 0200710900920520540500530510310300110360330040230910240350050160980170140740400700430420

Connection and wiring diagramConnection and wiring diagram127/1285862Ă297ĂGBThis wiring diagram only applies in conjunction withViessmann products.Sub

129Connection and wiring diagramConnection and wiring diagram (cont.)Aāā1 Main PCBAāā2 Power supply unit PCBAāā3 Printed circuit boardAāā4 PCB heating

130AppendixSpecificationRated voltage: 230 V~Rated frequency: 50 HzRated current: 6 amp ~Powerconsumption: 5 WSafety class: IProtection: IP 20 D acc.

131AppendixSettings and equipmentTick off the adjusted function.Function in as delivered conditionModified functionHighĂlimitĂsafetyĂcut-outĂ"E&q

13InstallationSummary of electrical connections (cont.)Plug 230 V~sÖ Heating circuit pump A1sA Circulation pump for DHWcylinder loading (accessory)sK

132AppendixSettings and equipment (cont.)Function in as delivered conditionModified functionHeating circuit pumpsIn heating programĂ"rw", th

133AppendixSettings and equipment (cont.)Function in as delivered conditionModified functionMixer circuit M2Heating mode/reduced modeweather-compensat

134AppendixSettings and equipment (cont.)Function in as delivered conditionModified functionHeating system with DHW heating:H DHW is loaded from the t

135AppendixSettings and equipment (cont.)Connected accessoriesj Mixer circuit M1 extension kitj Mixer circuit M2 extension kitj Control module Vj KM B

136AppendixKeyword indexAActual temperatures, scanning, 37Adaptive DHW heating, 64Applicability, 3Automatic mode, 62Auxiliary circuits for DHW loading

137AppendixKeyword index (cont.)HHeating circuit allocation, 30Heating circuit control unit, 56Heating circuit pump logic function, 57, 113Heating cir

Viessmann Werke GmbHĂ&ĂCoDĆ35107 AllendorfTel: +49 6452 70Ć0Fax: +49 6452 70Ć27Ă80www.viessmann.deViessmann LimitedHortonwood 30, TelfordShropshir

14InstallationInserting cables and applying strain relief1. Remove knock-out tab from thecontrol unit.2. Click the bottom part of the fixingclamp into

15InstallationChanging the high limit safety cut-out (if required)The high limit safety cut-out is supplied with a factory setting of 110 ºC.¨ If adju

16InstallationChanging the high limit safety cut-out setting (cont.)Adjustment to 100 ºC at Juchheim1. Pull the fuse from its holder.2. Unhook and rem

17InstallationChanging the control thermostat (if required)The control thermostat is supplied with a factory setting of 75 ºC.Do not set the control t

18InstallationInserting the boiler coding cardOnly use the boiler coding card included with the boiler product documentation.BoilerCodingcardPart no.V

19InstallationSensor connectionA Flue gas temperature sensorB Boiler temperature sensorC DHW cylinder temperaturesensorD Outside temperature sensor(in

2General informationSafety instructionsPlease follow these safety instructions closely to prevent accidents andmaterial losses.Safety regulationsInsta

20InstallationPump connectionAvailable pump connectionssÖ Heating circuit pump A1sA Circulation pump for DHWcylinder loadingsK DHW circulation pumpPum

21InstallationExternal connections on plug aBÖ ¨ The external connections must be volt-free. Plug aBÖ must remainplugged in, even if no connection is

22InstallationConnecting central fault messagesA Central fault message equipmentRated voltage: 230 V~ 50 HzRated current: 4 (2) A~Recommendedconnectio

23InstallationExternal heating program changeoverThe manually pre-selected heating program can be modified via the volt-freecontact.A External heating

24InstallationBurner connectionModulating oil- and gas-fired boilersConnect the burner in accordance with DIN 4791.The burner cables are included in t

25InstallationBurner connection (cont.)Burner without fanThe burner cables are included in the standard boiler delivery.Max. current 4 (2) A.5-core bu

26InstallationBurner connection (cont.)Two-stage/modulating burner extensionThe function extension is supplied with the boiler.Max. power consumptionH

27InstallationMains electrical connectionRequirementsCarry out the mains connection and all earthing measures (e.g. fault currentcircuit) in accordanc

28InstallationInstalling the top of the control unit5862Ă297ĂGB7.5.1.4.6.2.3.

29InstallationOpening the control unit5862Ă297ĂGB2.1.

3General information/indexProduct information/applicabilityVitotronic 300, type KW3Only for integration/installation on/in Viessmann boilers.Valid for

30Initial start-upStepsPage1. Checking the heating circuit allocationĂ Ă30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31Initial start-upFurther details regarding the individual steps (cont.)Checking the high limit safety cut-outThe "TÜV" key must be held dow

32Initial start-upFurther details regarding the individual steps (cont.)Checking outputs (actuators) and sensorsRelay test1. Press K and d simultaneou

33Initial start-upFurther details regarding the individual steps (cont.)Adjusting heating curvesThe heating curves illustrate therelationship between

34Initial start-upFurther details regarding the individual steps (cont.)Changing slope and level (for each heating circuit separately)1. Call up slope

35Initial start-upFurther details regarding the individual steps (cont.)Adjusting the set room temperature (for each heating circuit separately)Standa

36Service scansService level summaryFunction Key combination Exit PageAdjusting the displaycontrastPress d and asimultaneously;the display will darken

37Service scansTemperatures, boiler coding card and brief scans1. Press K and G simultaneouslyfor approx. two seconds.2. Select the required scan with

38Service scansTemperatures, boiler coding card and brief scans (cont.)8re BUSSoftware version ćcontrol module VSoftwareversion ćremote controlmixer c

39Service scansScanning operating conditions1. Press c.2. Select the required operatingcondition scan with a orĂb.3. Press c.The following operating c

4ContentsIndex (cont.)TroubleshootingFaults with fault display at the programming unitĂ 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40Service scansScanning and resetting "Maintenance" displayAfter limits have been reached, which were set up via coding addresses "1F&q

41Service scansScanning and resetting "Maintenance" display (cont.)After maintenance has been carried out1. Reset code "24:1" (see

42TroubleshootingFaults with fault display at the programming unitThe red fault lamp AĂflashes for allfaults."āFault" flashes in the program

43TroubleshootingFaults with fault display at the programming unit (cont.)Fault display designFault displayFault code(for explanations see page 44)Fau

44TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause Check0fControl mode Maintenance Carry ou

45TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause Check30H with DHW cylinder:Cylinder load

46TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause Check51Control acc. to DHWcylinder temp.

47TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause CheckbaMixer (M2)continues to controlCom

48TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause Checkc5Control mode,max. pump speedCommu

49TroubleshootingFaults with fault display at the programming unit (cont.)FaultcodeSystemcharacteristicsCause CheckdEaControl modewithout roominfluenc

5Heating system designsSystem version 1One direct connected heating circuit without mixerA Boiler with control unitB Domestic hot water cylinderC Vito

50TroubleshootingDownloading fault codes from the fault memory (fault history)All faults are saved and may be scanned...1. Press G and d simultaneous

51TroubleshootingFaults without fault display at the programming unitBoiler cold, burner does not startSet the emissions test switch to "h"H

52TroubleshootingFaults without fault display at the programming unit (cont.)Boiler water temperature too high or too lowCompare the actual and the se

53TroubleshootingFaults without fault display at the programming unit (cont.)Boiler hot enough, but the heating circuit pumps will not runSet the emis

54Function descriptionBoiler temperature controlBrief descriptionThe boiler water temperature isregulated by starting and shuttingdown the burner.In t

55Function descriptionBoiler temperature control (cont.)Auxiliary circuitsH Two-stage/modulating burner:An extension can be connected forcontrolling a

56Function descriptionHeating circuit control Brief descriptionThe control unit provides controlcircuits for one heating circuitwithout mixer and two

57Function descriptionHeating circuit control (cont.)Domestic hot water temperatureH With DHW priority:The set flow temperature will beset to 0 ºC whi

58Function descriptionHeating circuit control (cont.)Extended economy circuitThe heating circuit pump is switchedOFF, and the set flow temperature iss

59Function descriptionHeating circuit control (cont.)Flow temperature controlDifferential temperature:The differential temperature may beadjusted via

BDAEM2C6Heating system designsSystem version 2One mixer circuitA Boiler with control unitB Domestic hot water cylinderC KM BUS distributor, only forse

60Function descriptionHeating circuit control (cont.)Upper control limitElectronic maximum limitSetting range: 1 to 127 ºCChanges via coding address &

61Function descriptionDHW cylinder temperature controlBrief descriptionThe DHW cylinder temperaturecontrol operates at a constanttemperature. It is th

62Function descriptionDHW cylinder temperature control (cont.)In conjunction with coding address "7F""7F:1" Detached house:H Autom

63Function descriptionDHW cylinder temperature control (cont.)Control sequenceDHW cylinder goes cold(set value ć2.5 K, adjustable viacoding address &q

64Function descriptionDHW cylinder temperature control (cont.)The DHW cylinder is hot(set value +2.5 K)The set boiler water temperature isreturned to

65ComponentsComponents from the parts listFor parts list see page 124.Main PCBThe main PCB comprises:H Relay for selecting pumps andburnerH Connection

66ComponentsComponents from the parts list (cont.)TÜV keyFor testing the high limit safetycut-out.For a description see page 31.Programming unitContro

67ComponentsComponents from the parts list (cont.)Control thermostatH Type TR 55.18015.050, Messrs.EGO, DINĂTR11032002orEMĆ1/b1; 60002847, Messrs.Juch

68ComponentsComponents from the parts list (cont.)Boiler temperature sensor and cylinder temperature sensorConnectionSee page 19.Checking the sensor1.

69ComponentsComponents from the parts list (cont.)Outside temperature sensorConnectionSee page 19.Checking the outside temperaturesensor1. Pull plug !

7Heating system designsSystem version 3One direct connected heating circuit without mixer and one mixer circuitA Boiler with control unitB Domestic ho

70ComponentsRadio clock receiver, part no. 7450 563The radio clock receiver provides fully automatic time setting for the controlunit and remote contr

71ComponentsFlue gas temperature sensor, part no. 7450 630ConnectionThe sensor is plugged into socket"15" at the control unit.Checking the f

72ComponentsMixer circuit extension kit (cont.)Mixer extensionElectrical connections summaryA Mixer extensionB H Mixer motor forpart no. 7450 069H Wal

73ComponentsMixer circuit extension kit (cont.)Pump connection 230 V~A To the extension kitPump connection 400 V~A To the extension kitB ContactorC Th

74ComponentsMixer circuit extension kit (cont.)Control unit connectionA To the extension kitB To the control unit or to the KMBUS distributorC KM BUS

75ComponentsMixer circuit extension kit (cont.)Mixer motor, part no. 7450 657(only when using the extension kit, part no. 7450 059)The mixer motor is

76ComponentsMixer circuit extension kit (cont.)Mixer motor, part no. 9522 487(only when using the extension kit, part no. 7450 059)The mixer motor is

77ComponentsMixer circuit extension kit (cont.)Mixer motor, part no. 9522 488(only when using the extension kit, part no. 7450 059)The mixer motor is

78ComponentsMixer circuit extension kit (cont.)Changing the rotational directionH For the installation examples on page 79 andH for systems with Modul

79ComponentsMixer circuit extension kit (cont.)Change the rotational direction for these installation examples (see page 78).A Marking notchHR Central

8Heating system designsSystem version 4Two mixer circuits5862Ă297ĂGBM2BECAM3HFDG

80ComponentsMixer circuit extension kit (cont.)Coding(DIP switches on the main PCB of the mixer extension)S1.4 must always be set to "OFF".A

81ComponentsContact temperature sensor, part no. 7450 642For recording the flow and return temperature.ConnectionThe sensor is plugged into socket&quo

82ComponentsHigh limit thermostat for limiting the maximum temperatureImmersion thermostat, part no. 7151 728Contact thermostat, part no. 7151 729A He

83ComponentsRemote controlVitotrol 200, part no. 7450 017(with integral room temperature sensor for hooking up room temperature inconjunction with a m

84ComponentsRemote control (cont.)A PCB DIP switches(rear of the top of the case)Remote controlaffectsCoding switchsettingSystem circuit A1(Heating ci

85ComponentsRemote control (cont.)Vitotrol 300, part no. 7450 790(with integral room temperature sensor for hooking up room temperature inconjunction

86ComponentsRemote control (cont.)A PCB DIP switches (rear of the top casing)Remote controlaffectsCoding switchsettingSystem circuit A1(Heating circui

87ComponentsRemote control (cont.)Connecting several remote control unitsWhen you connect several remote control units to the control unit, use theKM

88ComponentsRemote control (cont.)Version 2A To the control unit or to the KM BUS distributorB Socket (on site)C Vitotrol 1D Vitotrol 2E Vitotrol 3F F

89ComponentsRoom temperature sensor, part no. 7408 012The room temperature sensor measures the actual room temperature, if theremote control unit cann

9Heating system designsSystem version 4 (cont.)A Boiler with control unitB Domestic hot water cylinderC Mixer circuit M2D Extension kit for mixer circ

90ComponentsRoom temperature sensor, Part no. 7408 012 (cont.)Check the room temperature sensor 1. Disconnect the wires from thesensor.2. Check the se

91ComponentsControl module V, part no. 7143 513Control module V for functional expansion of the control unit.Observe the coding addresses "32&quo

92ComponentsControl module V, Part no. 7143 513 (cont.)Plug a-DDE1 External heating program changefor heating circuits without mixerClosing the contac

93ComponentsKM BUS distributor, part no. 7415 028The connection between the control unit and the remote control, the remotemonitoring equipment and co

94ComponentsMains power distributor, part no. 7415 030Mains distributor to supply electrical accessories. The ON/OFF switch on the control unit isolat

95ComponentsBoiler coding cardTo match the control unit function to the boiler (see page 18).Burner connection cablesFor boilers withH oil- and gas-fi

96ComponentsVitoair draught stabiliser, part no. 7338 725 and 7339 703A To control unitB To burnerColour coding to DIN/IEC 757BK blackGN/YE green/yell

97ComponentsMotorised flue gas damper, part no. 7252 819A To control unitB Flue gas damper motorColour coding to DIN/IEC 757BK blackFunction checkPres

98CodingResetting codes into the "as delivered condition"1. Press L and G simultaneouslyfor approx. 2 seconds.2. Press e."Base setting?

99CodingCode 1 (cont.)SummaryCoding in the delivered condition Possible changeSystem diagram00 : 1 System version 1:One heating circuitwithout mixer A