Vitodens 222-F FS2B Installation instructions12.2 MB - Viessmann

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Commissioning, inspection, maintenanceFurther details regarding the individual steps (cont.)1. Remove electrodes B.2. Undo three retaining clips C at thermalinsulation ring D and removethermal insulation ring D.3. Undo four Torx screws and removeburner gauze assembly E with itsgasket F.4. Insert and secure a new burnergauze assembly E with a new gasketF.Torque: 3.5 Nm.5. Refit thermal insulation ring D.6. Refit electrodes B.Torque: 2.5 Nm.Checking and adjusting the ignition and ionisation electrodes6 +2 010 ±1AA4 +0,50BA Ignition electrodes1. Check the electrodes for wear andcontamination.2. Clean the electrodes with a smallbrush (not with a wire brush) or sandpaper.B Ionisation electrode3. Check the electrode gaps. If the gapsare not as specified or the electrodesare damaged, replace and align theelectrodes together with new gaskets.Tighten the electrode fixingscrews with 2.5 Nm.Cleaning the heat exchanger and installing the burnerPlease note! Scratches on parts that are in contact with flue gas can lead to corrosion.Never use brushes to clean the heat exchanger.5457 552 GB36
Commissioning, inspection, maintenanceFurther details regarding the individual steps (cont.)3. Thoroughly flush heat exchanger Awith water.4. Install the burner. Fit the screw with aserrated washer and the remainingscrews, then torque diagonally with4 Nm.5. Fit the gas supply pipe with a newgasket.6. Check the gas connections for tightness.1. Use a vacuum cleaner to remove residuesfrom heat exchanger A insidethe combustion chamber.2. If required, spray slightly acidic,chloride-free cleaning agents basedon phosphoric acid onto heatexchanger A and let the solutionsoak in for approx. 20 min.DangerEscaping gas leads to a risk ofexplosion.Check all fittings for gas tightness.7. Connect the electrical cables/leads toeach corresponding component.5457 552 GBService37
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Page 11 and 12: Installation sequenceInstalling the
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Page 41 and 42: Draining the boiler on the DHW side
Page 43 and 44: Checking and replacing the magnesiu
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Page 69 and 70: Code 1Heating circuit 1, heating ci
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Code 2Heating circuit 1, heating ci
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Diagnosis and service scansDiagnosi
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Diagnosis and service scansChecking
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TroubleshootingFault display (cont.
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TroubleshootingFault codes (cont.)D
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TroubleshootingRepairsPutting contr
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TroubleshootingRepairs (cont.)2. Te
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TroubleshootingRepairs (cont.)Check
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Function descriptionConstant temper
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Function descriptionWeather-compens
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Function descriptionInternal extens
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Function descriptionExternal extens
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Function descriptionExternal extens
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Function descriptionControl functio
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Function descriptionElectronic comb
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DesignsExternal connection diagram5
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Parts listsParts lists5457 552 GBSp
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Parts listsParts lists (cont.)20520
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Commissioning/service reportsCommis
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CertificatesDeclaration of conformi
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Keyword indexKeyword indexAAcknowle
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Vitodens 222-F FS2B Installation instructions12.2 MB - Viessmann

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