Viessmann Vitocrossal 200 CM2 Series Manuel d'installation

Service instructionsfor contractorsVIESMANNVitocrossal 200Type CM2Gas condensing boiler with MatriX radiant burnerFor applicability, see the last page

1003. Switch OFF the mains isolator (out-side the installation room) or thepower supply and prevent unauthor-ised reconnection.04. Undo fitting A.05.

1104. Undo fitting A.05. Except for 115 kW: Pull compensa-tion hose G from the gas train.06. Release the gas train from flangeE.07. Remove restricto

12Checking the static and the supply pressureStatic pressure87 kW115 to 311 kWA1. Close the gas shut-off valve.2. Undo the screw in test nipple A, bu

13Supply pressure1. Start the burner.NoteFor commissioning, see page 7.Switch the burner to maximum heat-ing output. For this, activate the emis-sion

14Checking the CO2 contentPreparing the test 1. Open the gas shut-off valve.2. Start the burner.3. Press "S" E and "-" D simulta

153. If the CO2 content must be adjusted:Turn adjusting screw A in smallincrements until the CO2 content rea-ches the specified range. Turning clock

163. If the CO2 content must be adjusted: Remove cover B. Turn adjusting screw A in smallincrements (Torx 40) until the CO2content falls within the s

173. If the CO2 content must be adjusted: Remove cap B. Turn setting screw A in smallincrements (3 mm Allen key) untilthe CO2 content lies within the

183. If the CO2 content must be adjusted: Remove cover B. Turn adjusting screw A in smallincrements (Torx 40) until the CO2content falls within the s

19Checking the ionisation currentABCD01. Switch OFF the mains isolator.02. Pull ionisation cable plug C.03. Switch ON the mains isolator. There must

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

20Shutting down the system1. Switch OFF the mains isolator or thepower supply and safeguard againstunauthorised reconnection.2. Pull plug-in connecto

21Only use plastic brushes, not wirebrushes or sharp objects.For normal cleaning, flush the heatingsurfaces thoroughly with a water jet. Youmay use cl

22Checking all connections on the heating water side and the sen-sor well for leaksAASensor wellNoteAlso check the connections to controlequipment and

23BDAC1. Pull drain or cleaning hose C off.2. Clean the inside of the condensatedrain system (hose, pipe).3. Clean the neutralising system (ifinstal

24Checking the burner gauze assembly1. Undo fitting A on the gas supplypipe.2. Undo the screws on the boiler doorand open the door.3. Check the wire

25Closing the boiler doorNoteTighten the boiler door screws evenlyacross with a torque of approx. 18 Nm.Information regarding the door lockBefore comm

26Fitting the burner87 kW115 to 311 kW1. Install fan A.NoteEnsure the gasket between the fanhousing and the boiler door is cor-rectly positioned.2. P

27Checking both gas train valves for tightness (for 115 to 311 kW)1. Close the gas shut-off valve.2. Undo the screw in test nipple B, butdo not remov

28Checking the gaskets/seals on the flue gas sideCABD1. Check flue gas collector C andboiler body A for tightness.2. Check the lip seal B of the boile

293. If required, retighten the flue gas col-lector at clamping clips D. Replacelip seal B if it leaks.Implementing final tests1. Carry out the fina

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

30Total hardness pH value Water treatment DateFeedwater Boiler water BoilerwaterMedium Meteringvolume

31Checking the mixer for ease of operation and leaks1. Remove the motorised lever from themixer handle. 2. Check the mixer for ease of opera-tion.3.

32FunctionThe air pressure switch A signal will beinterpreted under the following operatingconditions: prior to the fan start (idle state check) in

33Display and programming unitFunctionA display and programming unit is integrated into the burner control unit. The displayindicates the relevant ope

34Status ServiceIdle state checkFan ramp-upStatus ServicePre-purgeStatus ServicePre-ignitionStatus ServiceSafety timeStatus ServiceFlame establishedSt

35Display Status(single digit)Service(two digits)SeeOperating display instandard modeCurrent operatingcondition, seepage 33 and 34Display "FL&quo

36DIP switch setting or parameter setThe DIP switch (at the back of the display and programming unit) is factory-set to therated heating output of the

37SettingRated burner heating outputSettingReduced burner heating outputParameter set 4≙ 246 kW1 2 3 4 5 6 7 8ONONParameter set 10≙ 173 kW1 2 3 4 5 6

383. Press the reset button. The operating display will then beshown again.Displaying the selected parameter setThis display will be terminated if n

392. Press b.The additional fault information willbe displayed under "Service" for aslong as this key is held down.3. Press the reset butto

4Commissioning, inspection, maintenanceSteps – commissioning, inspection and maintenance... 5Further details re

40Faults with fault indicator on the display and programming unitMessage codesMessagecodeSystem characteris-ticsCause MeasuresA Burner off Gas pressur

41Fault code System characteris-ticsCause Measures25 No flame signal afterthe safety time; theionisation flame mon-itor reports no flamesignalIonisati

42Fault code System characteris-ticsCause Measures26 Ionisation flame mon-itor reports externallight ingress duringthe start or after thepost-purgeIgn

43Fault code System characteris-ticsCause Measures2C Burner control unitfaultFault during test ofsafety inputsReplace burner controlunit.2d Burner con

44Fault code System characteris-ticsCause Measures37 The fan does notreach its set speedThe fan is faulty;cable "100" or"100a" is

45Faults without fault displayFault Cause MeasureCombustion faultthrough pulsationExcessive gasthroughputAdjust gas throughput in accord-ance with rat

46Application informationApplies only to the MatriX radiant burner, type VMA III with 285 kW, for open flueoperation.If the following problems are exp

47Speed from phase 11(transfer to boiler control unit)PhaseControlthermostatFanIgnition setting100%Fan RelayAir pressureswitchSafetyvalveY1Ignition/so

48After the controller issues a heatdemand, the following programsequence will be run:Phase Duration01 Test for heat demand 1 s02 Checking the idle st

49ABurner control unit MPA 51BVitotronic control unitCFan motor with PWM control andfeedbackDFlame monitoring via an ionisationcurrentEDisplay unit wi

5For further information regarding the individual steps, see the page indicatedCommissioning stepsInspection stepsMaintenance steps Page•1. Checking t

50B2 Safety chain jumperF1 Backup fuseF2 Backup fuseF6 High limit safety cut-outF7 Temperature controllerH1 Hours run meter, totalH2 Fault messageH3 H

51Pressure-jet gas burner, type VMA III, 87 kWABoiler doorBAir pressure switchCFanDDisplay and programming unitComponent overviewComponent overview569

52EGas supply pipeFGas shut-off valveGBurner gauze assemblyHIgnition electrodesIIonisation electrodeKThermal insulation blockLBurner control unitMIgni

53Pressure-jet gas burner, type VMA III, 115 to 311 kWABoiler doorBAir pressure switchCFanDDisplay and programming unitComponent overviewComponent ove

54EGas trainFGas supply pipeGGas shut-off valveHBurner gauze assemblyIIgnition electrodesKIonisation electrodeLThermal insulation blockMBurner control

55Vitotronic service instructionsIn conjunction with the following control units: Vitotronic 100, type GC1B Vitotronic 200, type GW1B Vitotronic 30

56When ordering spare parts:Quote the part no. and serial no. (seetype plate) and the position number ofthe required part (as per this parts list).Sta

57Parts not shown103 Small parts comprising:a Threaded connectorb Cheese head screw M6 x 10c Washer 6.4 mmd Hexagon screw M5 x 16e Washer 5.3 mmf Oval

58MatriX burner 87 kW130CC131106110101111107119116117AB115114113112108120102105109127122126118128118104111110140Parts listsParts lists (cont.)5692 907

59MatriX burner 115 to 311 kW130CC131119128122116123127126124121117118AB115114113112108125109106110101111107111110102105104140Parts listsParts lists (

6Commissioning stepsInspection stepsMaintenance steps Page• •21. Checking the ignition electrodes and ionisationelectrode...

60Vitocrossal 200, type CM2, 87 to 311 kWE204214202204206207203213200208D205004 210001209212003 205201 212 211215216215216Parts listsParts lists (cont

61Setting and test values Commission-ingMaintenance/ServiceStatic pressure mbar Supply pressure (flow pressure) =for natural gas E mbar =for

62NoteObserving the following requirements isnecessary to safeguard your warrantyrights.The manufacturer's warranty excludesdamage due to corrosi

63 In systems > 50 kW, install a watermeter to record the volume of the fill &top-up water. Enter the volume of thefill water and the water ha

64Prevention of damage due to corrosion on the water sideThe corrosion resistance of ferrousmaterials on the heating water side ofheating systems and

65Where chemicals are used as part of thecorrosion protection, we recommendthat the manufacturer of the chemicalsissues a certificate of suitability o

66Gas boiler, category I2ELLRated heating out-put TV/TR = 50/30 °C kW 29-8738-11547-14247-18682-246104-311TV/TR = 80/60 °C kW 27-8035-1054

67MatriX radiant burnerRated boiler heat-ing output TV/TR = 50/30 °C kW 29-8738-11547-14247-18682-246104-311TV/TR = 80/60 °C kW 27-8036-1

68Gas restrictor dimensions (naturalgas E) for 115 to 311 kWaaRated heating output Dimension amm115 kW 12.9142 kW 12.9186 kW 16.0246 kW 15.7311 kW 16.

69We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole respon-sible body, that the product Vitocrossal 200, type CM2, 87 to 311 (80

7Checking the high limit safety cut-out settingNever set the high limit safety cut-outhigher than 110 °C, set it to a maximumof 110 °C if required.Con

70We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the productVitocrossal 200, type CM2, 87 to 311 (80 to 285) kW with MatriX radia

71AAcknowledging a parameter set...37Air pressure switch...32BBurner Cleaning...

72ApplicabilitySerial No.:7247420 7247421 7247422 72474237247424 7247425 7185861 71858627185863 7185864 7185865 7185866Viessmann LimitedHortonwood 30,

82. For open flue operation: Check thatthe vents in the installation room areopen.3. Check the gas supply pressure.4. Open the gas line shut-off va

99. Check all gaskets and plugs, andretighten if necessary.NoteWe recommend you check all con-nections on the heating water side forleaks after appro