Viessmann Vitodens 222-F Instructions d'exploitation

Installation and serviceinstructionsfor contractorsVIESMANNVitodens 222-FType FS2BCompact gas condensing boiler4.8 to 35 kW natural gas and LPG versio

10Safety assembly to DIN 1988ASafety assembly to DIN 1988(accessory to connection sets forunfinished walls)BSafety valveCVisible blow-off line outletD

100Display ExplanationStart valve Heating Diverter valve set to heating modeStart valve centre Diverter valve in central position (filling/draining)St

101Display Explanation19Contacts P - S at plug aBJ for extension EA1 closed20 Output A1 at extension AM1 enabled21 Output A2 at extension AM1 enabledD

102Weather-compensated control unitIf there is a fault, the red fault indicatorA flashes. " " flashes on the displayand "Fault" is

103Constant temperature control unitIf there is a fault, the red fault indicatorA flashes. The two-digit fault code and(subject to the type of fault)

104Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause Measures10 X X Regulates as ifthe outsidetemperaturewere 0 °CShort circuit,outsi

105Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause Measures48 X Mixer closes Lead break,flow tempera-ture sensor,heating circuit2 (

106Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresA9 X The burneroperates at itslower output if aheating circuitwith mixer

107Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause Measuresbb X Mixer regulatesto a flow tem-perature of20 °CCommunica-tion error,e

108Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresC4 X X Control mode Communica-tion error,Open ThermextensionCheck OpenTh

109Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresCE X X Control mode Communica-tion error, ext.extensionCheck electricalc

11Assembling the boiler2.6.7.5.1.4.2x3.Installation sequenceInstalling the boiler5457 552 GBInstallation

110Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause Measuresdd X Control modewithout roominfluenceLead break,room temper-ature senso

111Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresEb X X Burner in a faultstateHeat draw-offrepeatedlytoo low duringcalibr

112Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresEF X X Burner in a faultstateFlame is lostafter flamehas built.Check the

113Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresF8 X X Burner in a faultstateThe fuel valvecloses toolateCheck the gastr

114Dis-playedfaultcodeConst. Weath.-comp.System char-acteristicsCause MeasuresFE X X Burner blockedor in a faultstateBoiler codingcard or mainPCB faul

115Putting control unit in maintenance positionIf required for commissioning and serv-icing, the control unit can be put in a dif-ferent position.1.2.

116Draining the boiler on the heating water side1. Close the shut-off valves on the heat-ing water side.2. Route hose at drain valve A into asuitable

1172. Test the resistance of the outsidetemperature sensor across terminals"X3.1" and "X3.2" on the disconnec-ted plug and compar

118Checking the boiler temperature sensor, cylinder temperaturesensor or flow temperature sensor of the low loss headerX35TroubleshootingRepairs (cont

1191. Boiler water temperature sensorPull the leads from boiler watertemperature sensor A and checkthe resistance. Cylinder temperature sensorPull

12Connections on the heating water and the DHW sideShown with connection sets for finished walls (accessories)AHeating flow R ¾BDHW R ½CDHW circulatio

120Checking the outlet temperature sensor1. Pull the leads from outlet temperaturesensor A.10110 30 50 70 90 110Temperature in °C0.40.60.8246820Resis

121Checking the flue gas temperature sensorThe flue gas temperature sensor locks out the boiler when the permissible flue gastemperature is exceeded.

122Checking the plate heat exchangerNoteDrain the boiler on its heating water and DHW side.During removal, small amounts of water may trickle out and

1236. Check the connections on the heat-ing water and DHW side for contam-ination and scaling; if required,replace the plate heat exchanger.7. Insta

124Checking the fuseF11. Switch OFF the power.2. Release the side closures and pivotthe control unit down.3. Remove cover A.4. Check fuse F1 (see c

125Checking the rotational direction ofthe mixer motorAfter being switched ON, the boilerimplements a self-test. During this, themixer is opened and c

1264 8°Cs AHeating modeThe selected set boiler water tempera-ture will be maintained when a demandis being raised by the room thermostatand the heatin

127Boosting when DHW is drawn offWhen DHW is drawn off, cold waterenters at the bottom of the primary cyl-inder.The heating circuit pump is switched O

128Heating modeThe control unit determines a set boilerwater temperature subject to outsidetemperature or room temperature (if aroom temperature-depen

129The DHW is controlled to the specifiedtemperature via the cylinder temperaturesensor.The primary cylinder continues to beheated up after the draw o

13Gas connectionNotes regarding operation with LPG.We recommend the installation of anexternal safety solenoid valve wheninstalling the boiler in room

130Internal extension H1The internal extension H1 is integratedinto the control unit casing. The cylinderprimary pump is connected to relay out-put sK

131Internal extension H2 (accessories)The internal extension H2 is integratedinto the control unit casing instead of theinternal extension H1. The cyl

132Extension AM1A1 Circulation pumpA2 Circulation pumpfÖPower supply [terminals]fÖAPower supply terminal for addi-tional accessoriesaVGKM BUSFunction

133FunctionsOne of the following circulation pumpscan be connected to each of the termi-nals A1 and A2: Heating circuit pump for the heatingcircuit w

134Extension EA1DE1 Digital input 1DE2 Digital input 2DE3 Digital input 30 - 10 V 0 - 10 V inputfÖPower supply [terminals]fÖAPower supply terminal for

135Digital data inputs DE1 to DE3The following functions can be connec-ted alternatively: External heating program changeoverfor each heating circuit

136Function assignmentSelect the function of output aBJ viacode 36 at the boiler control unit.Control functionsExternal heating program changeoverThe

137Heating program changeover CodeNo heating program changeover F2:0Duration of the heating program changeover 1 to 12 hours F2:1 toF2:12 The heating

138External demand CodeInput DE1 3A:2Input DE2 3b:2Input DE3 3C:2The effect on the internal circulationpump is selected with code 3F.The effect on the

139When the screed drying function is acti-vated, the heating circuit pump of themixer circuit is switched ON and the flowtemperature will be held in

14!Please noteExcessive test pressure maydamage the boiler and the gasvalve.Max. test pressure 150 mbar.Where higher pressure isrequired for tightness

140Temperature profile 3: Code "F1:3"Flowtemperature °CDays50403020101 5 10 15 20 25 30Temperature profile 4: Code "F1:4"Flowtempe

141Temperature profile 6: Code "F1:6"Flowtemperature °C1 5 10 15 20 25 30Days504030201060Temperature profile 7: Code "F1:15"Flowte

142Example using the settings in the delivered conditionAB-20Outside temp. in °CBoiler water orflow temperature in °C8070605040300 -5 -10 -15510Set ro

143Example using the settings in the delivered condition100203030405060600700800900Set boiler water or flowtemperature in °CTime in hABCDAStart of ope

144The heating circuit assignment must beconfigured when commissioning theVitotrol 200A or Vitotrol 300A.Heating circuit ConfigurationVitotrol 200A Vi

145Air factor λ – CO2/O2 contentAir factor λ O2 content (%) CO2 content (%) for nat-ural gas HCO2 content (%) forLPG P1.24 4.4 9.2 10.91.27 4.9 9.0 10

146A1 Main PCBX... Electrical interfaces§Boiler water temperature sensor$Outlet temperature sensoraAIonisation electrodeaGFlue gas temperature sensord

147A1 Main PCBA2 Power supply unitA3 OptolinkA4 Burner control unitA5 Programming unitA6 Coding cardDesignsExternal connection diagram5457 552 GBServi

148A7 Connection adaptorA8 LON communication moduleA9 Internal extension H1S1 ON/OFF switchS2 Reset buttonX... Electrical interfaces!Outside temperatu

149Spare parts informationQuote the part and serial no. (see typeplate) and the item number of therequired part (as per this parts list).Obtain standa

155.4.7xElectrical connectionsInformation regarding the connection of accessoriesFor the connection, observe the separate installation instructions pr

150100 O-ring 8 x 2 (5 pce.)102 Locking clip, condensate drain103 Drain plug (set)104 Cap105 Hose 7 10 x 1.5 x 750106 Union nut G 1110 Quick-action a

151208061065070094062063069061074067206072071081066075068205092004003060064031Parts listsParts lists (cont.)5457 552 GBService

152007202204200208208207090090090005008140006113Parts listsParts lists (cont.)5457 552 GB

153303309304301305306307308302029097300315316315316112317Parts listsParts lists (cont.)5457 552 GBService

154013088015102016017002096082001011095040093092095010099021023099085034091085089032028141142096012103105104019094100117Parts listsParts lists (cont.)

155054055114115131027 036 094134094035028051094038096055050056057142133138130137053 097052106087084039098099085084084080080105084110100Parts listsPart

156025026024098084087080165167166164111037094084080080162171143163160030080033080080162089172Parts listsParts lists (cont.)5457 552 GB

157Setting and test val-ues Set value Commis-sioningService Date: By: Static pressure mbar max. 57.5 mbar Supply pressure (f

158Rated voltage 230 VRated frequency 50 HzRated current 6 AProtection class IIP rating IP X 4 D toEN 60529Permissible ambient temperature during ope

159Declaration of conformity for the Vitodens 222-FWe, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole respon-sible body that the p

16L 1LM1~L N230V~230V~3217654X3409620351001LNLNL1N2153DEBCA%aVG!?ARadio clock receiverBVitotrol 100 UTDB (only for constanttemperature control units)C

160We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the productVitodens 222-F complies with the NOx limits specified by the 1st BIm

161AAcknowledging a fault display...102BBoiler draining DHW side...41Boiler temperature sensor...

162IIgnition...36Ignition electrodes...36Ionisation electrode...

1635457 552 GB

164ApplicabilityCompact gas condensing boilerType FS2B from serial no.4.8 to 19 kW 7438 004 ... , 7438 007 ...6.5 to 26 kW 7438 005 ... , 7438 008 ...

17Never interchange cores"L1" and "N". Install an isolator in the powersupply line that simultaneouslyisolates all non-earthed c

18Routing the connecting cables!Please noteConnecting cables will be damaged if they touch hot parts.When routing and securing power cables on site, e

191.4.2.5.3.2x6.Close control unit casing and insert pro-gramming unit, packed separately.NoteThe programming unit can also be usedin a wall mounting

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

20Wall mounting base installationinstructionsInstallation sequenceClosing the control unit casing (cont.)5457 552 GB

21For further information regarding the individual steps, see the page indicatedCommissioning stepsInspection stepsMaintenance steps Page• •1. Removin

22Commissioning stepsInspection stepsMaintenance steps Page• •21. Checking the condensate drain and cleaning thesiphon...

23Removing the front panelsSee page 11, steps 1 to 5.Filling the heating system!Please noteUnsuitable fill water increases the level of deposits and c

24NoteIf the control unit has not beenswitched ON prior to filling the sys-tem, then the servomotor of thediverter valve will still be in its centralp

25Selecting the language (if required) – only for weather-compen-sated control unitsNoteAt the commissioning stage, the displayis in German (default s

26Venting the boiler1. Close the shut-off valves on the heat-ing water side.2. Remove cover panel A.3. Connect the drain hose on valve Bwith a drain.

27Activating venting function with con-stant temperature control unit:1. Press OK and simultaneously forapprox. 4 s.2. Select "5" and c

286. Check that the condensate pipe isconnected correctly to the siphon andheat exchanger.7. Refit cover panel.8. Secure control unit back in opera

29Gas type conversion (only for operation with LPG)121. Set adjusting screw A at the gastrain to "2".2. Switch ON/OFF switch ON.3. Select

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

30 yes IgnitionnoFault EE Check the ignitionmodule (controlvoltage 230 Vacross plugs"X2.1" and "X2.2") yes

31 yes Automatic calibra-tion of the com-bustion controllerno Fault Eb Initiate a heatdraw-off. Switchthe boiler OFF andON again.Press rese

325. Start the boiler.NoteDuring commissioning, the boiler canenter a fault state because of airlocksin the gas line. After approx. 5 s,press the res

334. "Change?" Select "Yes".A value flashes on the display (e.g."85"). In the delivered condition, thisvalue represents

34Burner removal4x1. Switch ON/OFF switch at the con-trol unit and the main power supplyOFF.2. Close the gas shut-off valve and safe-guard against

353. Pull electrical cables from fan motorA, gas valve B, ionisation elec-trode C, ignition unit D and earthtab E.4. Release gas supply pipe fitting

361. Remove electrodes B.2. Undo three retaining clips C at ther-mal insulation ring D and removethermal insulation ring D.3. Undo four Torx screws a

371. Use a vacuum cleaner to remove res-idues from heat exchanger A insidethe combustion chamber. 2. If required, spray slightly acidic,chloride-fre

38Checking the condensate drain and cleaning the siphonCBA1. Check that the condensate can drainfreely at the siphon.2. Pull retaining clip A off.3.

391.2.AMagnesium anodeBEarth cableTesting the anode earth current with an anode testerNoteWe recommend that the magnesium anode function is checked an

4Installation instructionsPreparing for installationProduct information...

401. Remove cover A.2. Pull earth lead B from tab C.3. Connect the tester (up to 5 mA) inseries between tab C and earthcable B. The anode is OK if t

41Draining the boiler on the DHW side1. Connect hose to drain valve androute into a suitable container or drainoutlet.NoteEnsure adequate ventilation

42Cleaning the primary storeNoteEN 806 specifies a visual inspection and (if required) cleaning every two years afterthe cylinder has been taken into

43Checking and replacing the magnesium anode (if required)Check the magnesium anode. If it is discovered that the anode has degraded to 10to 15 mm Ø,

44Checking the diaphragm expansion vessel and system pressureNoteCarry out this test on a cold system.1. Drain the system, until the pressuregauge in

45Checking the pre-charge pressure and the DHW expansion ves-sel (if installed)A1. Check the static pressure of the DHWline downstream of the pressur

46NoteOperate the appliance with uncontaminated combustion air to prevent operatingfaults and damage.CO2 or O2 content The CO2 content must be within

47Selecting the upper/lower output forweather-compensated control units:1. Press OK and simultaneously forapprox. 4 s.2. "Actuator test"

48System version 1One heating circuit without mixer A143121Vitodens 222-F2Outside temperature sensor (onlyfor weather-compensated controlunits)3Vitotr

49System version 2One heating circuit with mixer M2 and a low loss headerM3456712981Vitodens 222-F2Outside temperature sensor3Heating circuit with mix

5Weather-compensated control unit... 127Internal extensions...

50System version 3One heating circuit without mixer A1 and one heating circuit with mixer M2M3 45678121Vitodens 222-F2Outside temperature sensor3Heati

51Function/system components CodeAdjust Delivered con-ditionOperation with LPG 82:1 82:0System only with one heating circuit with mixer withextension

529Heat exchanger for system separa-tionqPAssembly kit with mixer (acces-sory)Function/system components CodeAdjust Delivered con-ditionOperation with

534Heating circuit pump A15Heating circuit with mixer M2 (heat-ing circuit 2)6Flow temperature sensor M27Heating circuit pump M28Extension kit for one

540.2Outside temperature in °CBoiler water orflow temperature in °CSlope2.42.62.83.03.23.4908070605040300 -5 -10 -15 -20510AB2.02.2Set room temperatur

55Changing the slope and levelABBoiler water orflow temperature in °C90+20 -20Outside temperature in °C3.51.40.2AChanging the slopeBChanging the level

56Reduced room temperature +20 14 590-20D EACBExample 2: Adjustment of reduced roomtemperature from 5 °C to 14 °CABoiler water temperature or flowt

57Boiler control unit Vitotronic 200-H Vitotronic 200-H VitocomLON LON LONSubscriber no. 1Code "77:1"Subscriber no. 10Code "77:10"

584. Select subscriber (e.g. subscriber10).The subscriber check for the selectedsubscriber is introduced. Successfully tested subscribersare designa

59Constant temperature control unitReset code 24:1 to 24:0.NoteThe selected service parameters forhours run and time interval restart at 0.Commissioni

6Vitodens 222-F, FS2BSet up for operation with natural gas E and LL.For conversion to LPG P (without conversion kit), see page 29.The Vitodens 222-F s

60Fitting the front panels4.1.5.2.2x3.Instructing the system userThe system installer must hand the operating instructions to the system user andinstr

61Note On weather-compensated controlunits, codes are displayed as plaintext. Codes that have no function due to theheating system equipment level o

62Select "General" for weather-compensated control units (see page 61).Select "1" for constant temperature control units (see page

63Coding in the delivered condition Possible changeInternal circulation pump function51:0 Internal circulation pumpalways starts when thereis a heat d

64Coding in the delivered condition Possible changeSet flow temperature for ext. demand9b:70 Set flow temperature incase of external demand70 °C9b:0to

65Select "DHW" for weather-compensated control units (see page 61).Select "3" for constant temperature control units (see page 61)

66Parameter addressA5:...With heating circuit pump logic function: Heating cir-cuit pump "OFF"5 AT > RTset + 1 K6 AT > RTset7toAT >

67Coding in the delivered condition Possible changePump idle time, transition red. modeA9:7 With pump idle time:Heating circuit pump"OFF" if

68Parameteraddress b5:...With heating circuit pump logic function:Heating circuit pump "OFF" Heating circuit pump "ON"6 RTactual &

69Coding in the delivered condition Possible changeMax. pump speed in standard modeE6:... Maximum speed of thevariable speed heatingcircuit pump in %

7100569464050cdefghklmnpab1405032036139841080q505955060055220330GCABFDEAHeating flow R ¾BDHW R ½CGas connection R ¾DCold water R ½EHeating return R ¾F

70Coding in the delivered condition Possible changePump control in "Only DHW"F6:25 In the "Only DHW" oper-ating mode, the internal

71Coding in the delivered condition Possible changeIncrease set flow temperatureFA:20 Raising the set boilerwater temperature or theset flow temperatu

72Note In coding level 2, all codes are acces-sible, including the codes from codinglevel 1. Codes that have no function due to theheating system eq

737. If you want to reset all codes totheir delivered condition:Select Ú "7" and confirm with OK.When " " flashes, confirm with O

74Coding in the delivered condition Possible change11:≠9No access to the codingaddresses for the com-bustion controller param-eters 11:9 Access open t

75Coding in the delivered condition Possible change3A:0 Function input DE1 atextension EA1: No func-tion3A:1 Function input DE1: Heat-ing program chan

76Coding in the delivered condition Possible change3b:0 Function input DE2 atextension EA1: No func-tion3b:1 Function input DE2: Heat-ing program chan

77Coding in the delivered condition Possible change3C:0 Function input DE3 atextension EA1: No func-tion3C:1 Function input DE3: Heat-ing program chan

78Coding in the delivered condition Possible change3F:0 Internal circulation pumpstays in control mode atsignal "Externaldemand"3F:1 Interna

79Coding in the delivered condition Possible change79:1 With LON communicationmodule: Control unit isfault manager (only forweather-compensatedcontrol

8Rated output range 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kWd (mm) 1027 1027 1227e (mm) 1082 1082 1302f (mm) 1137 1137 1337g (mm) 1191 1191 1391h (mm) 1

80Coding in the delivered condition Possible change8F:0 All control elementsactive8F:1 All control elements lockedout8F:2 Only standard settings canbe

81Coding in the delivered condition Possible change9C:20 Monitoring LON subscrib-ers.If a subscriber fails torespond, the valuesspecified inside the c

82Coding in the delivered condition Possible change21:0 No service interval (hoursrun) selected21:1to21:100The number of hours runbefore the burner sh

83CodingCoding in the delivered condition Possible change56:0 Set DHW temperatureadjustable from 10 to60 °C56:1 Set DHW temperatureadjustable from 10

84Coding in the delivered condition Possible change65:... Information regarding thetype of diverter valve (notadjustable):0: no diverter valve1: Vies

85CodingCoding in the delivered condition Possible changeA0:0 Without remote control(only for weather-com-pensated control units)A0:1 With Vitotrol 20

86Coding in the delivered condition Possible changeA4:0 With frost protection (onlyfor weather-compensa-ted control units)A4:1 No frost protection; th

87Coding in the delivered condition Possible changeA6:36 Extended economy func-tion disabled (only forweather-compensatedcontrol units)A6:5toA6:35Exte

88Coding in the delivered condition Possible changeb0:0 With remote control:Heating mode/reducedmode: Weather-compen-sated (only for weather-compensat

89Coding in the delivered condition Possible changeC5:20 Electronic minimum flowtemperature limit 20 °C(only for weather-com-pensated control units)C5

9ML2. Prepare the DHW connections.Install the safety assembly (acces-sory or on-site provision) in accord-ance with DIN 1988 in the cold waterline (s

90Coding in the delivered condition Possible changed8:0 No heating programchangeover via extensionEA1d8:1 Heating program change-over via input DE1 at

91Coding in the delivered condition Possible changeE8:1 Minimum speed in opera-tion with reduced roomtemperature subject tothe setting in codingaddres

92Coding in the delivered condition Possible changeF6:25 In the "Only DHW" oper-ating mode, the internalcirculation pump is per-manently ON

93Coding in the delivered condition Possible changeFA:20 Raising the set boilerwater temperature or theset flow temperaturewhen changing fromoperation

94Only for weather-compensated control unitsPress OK and å simultaneously forapprox. 4 s.Service menu overviewServiceDiagnosisActuator testCoding leve

95Note"- - -" appears on the display if a sensor that has been scanned is faulty.Calling up operating dataWeather-compensated control unit1.

96Diagnosis Brief scan2:1:3:4:Select withØ0001 F000 0000 A000 0001 2000For an explanation of the relevant values in the individual lines and fields, s

97Line (briefscan)Field 1 2 3 4 5 6 Heating circuit A1(without mixer)Heating circuit M2(with mixer)Heating circuit M3(with mixer)7: Remotecontrol0:

98For explanations of individual scans, see the following table:Brief scan Display0 Systemschemes 1to 2Software versionControl unitSoftwareversionProg

99Brief scan DisplayF2SoftwareversionOutput A1configura-tion(value corre-sponds tocode 33 set-ting)Output A1switchingstate0: OFF1: ONOutput A2configur