Vaillant ecoTEC VU Service Manual

Installation and maintenance instructionsFor the competent personGB, IEInstallation and maintenance instructionsecoTEC plusVU 80, 100, 120kW

10 ecoTEC plus installation and maintenance instructions 0020134823_01 aSafetya20,00,30,60,91,21,51,82,12,42,733,33,60 500 1000 1500 2000 2500 3000 35

Unit and functional descriptionecoTEC plus installation and maintenance instructions 0020134823_01 1133 Unit and functional descriptionConstruction an

Installation12 ecoTEC plus installation and maintenance instructions 0020134823_0144 Installation4.1 Scope of deliveryThe Vaillant ecoTEC plus is del

InstallationecoTEC plus installation and maintenance instructions 0020134823_01 134Transporting the box from the delivery point to the installation si

Installation14 ecoTEC plus installation and maintenance instructions 0020134823_014Positioning the unit for final installation – restricted installati

InstallationecoTEC plus installation and maintenance instructions 0020134823_01 1544.3 Dimension drawing and connection dimensions2871906736034801751

Installation16 ecoTEC plus installation and maintenance instructions 0020134823_0144.5 Wall-mounting the boilera Danger!Risk of death if the load-bea

Gas installationecoTEC plus installation and maintenance instructions 0020134823_01 1755 Gas installationThe work described in this section must only

Hydraulic installation18 ecoTEC plus installation and maintenance instructions 0020134823_0166 Hydraulic installationThe work described in this secti

Hydraulic installationecoTEC plus installation and maintenance instructions 0020134823_01 1966.2 Connecting the heating flow and heating returnb

Table of contents2 ecoTEC plus installation and maintenance instructions 0020134823_01Table of contents1 Notes on the documentation ...

Hydraulic installation20 ecoTEC plus installation and maintenance instructions 0020134823_016PowerMax. pressure loss (mbar)< 120 kW86in conjunction

Hydraulic installationecoTEC plus installation and maintenance instructions 0020134823_01 2166.4 Connecting the discharge pipe to the expansion relie

Flue gas installation22 ecoTEC plus installation and maintenance instructions 0020134823_0177 Flue gas installation7.1 Preparing for installationa

Flue gas installationecoTEC plus installation and maintenance instructions 0020134823_01 2372mHMNHABCPCSABBQEHD,EQ7.2 Opening of the flue pipeInstall

24 ecoTEC plus installation and maintenance instructions 0020134823_018 Electrical installation8 Electrical installationThe work described in this se

Electrical installationecoTEC plus installation and maintenance instructions 0020134823_01 258b Caution.Risk of damage caused by incorrect installatio

Electrical installation26 ecoTEC plus installation and maintenance instructions 0020134823_018X18230 VX228.3 Connecting the pump group to the PCB >

Electrical installationecoTEC plus installation and maintenance instructions 0020134823_01 278 > In order to achieve pump operating mode 1 "Co

Electrical installation28 ecoTEC plus installation and maintenance instructions 0020134823_0188.6 Connection wiring diagramPump PWM signalGas valveWa

Establishing operational readinessecoTEC plus installation and maintenance instructions 0020134823_01 2999 Establishing operational readinessThe Vail

Notes on the documentationecoTEC plus installation and maintenance instructions 0020134823_01 311 Notes on the documentationThe following information

Establishing operational readiness30 ecoTEC plus installation and maintenance instructions 0020134823_019 > Check that both service valves on the b

Establishing operational readinessecoTEC plus installation and maintenance instructions 0020134823_01 3199.5 Filling the condensate siphona Danger!R

Establishing operational readiness32 ecoTEC plus installation and maintenance instructions 0020134823_01919.3 Flue gas and air analysis pointsKey:1

OperationecoTEC plus installation and maintenance instructions 0020134823_01 3310b Caution.Possible material damage and operating faults caused by inc

Operation34 ecoTEC plus installation and maintenance instructions 0020134823_011010.2 Overview of the menu structureMenuInstaller levelReset burner o

OperationecoTEC plus installation and maintenance instructions 0020134823_01 3510Target flow temp.Appliance config.DHW temperatureComfort modeBack Sel

Start-up36 ecoTEC plus installation and maintenance instructions 0020134823_011111 Start-upa Danger!Risk of poisoning and scalding caused by escaping

Start-upecoTEC plus installation and maintenance instructions 0020134823_01 371111.2.4 Heating partial loadThe heating partial load of the Vaillant e

Start-up38 ecoTEC plus installation and maintenance instructions 0020134823_011111.5 Checking the function of the boiler > After completing the in

Adapting the unit to the heating installationecoTEC plus installation and maintenance instructions 0020134823_01 391212 Adapting the unit to the heat

Notes on the documentation4 ecoTEC plus installation and maintenance instructions 0020134823_0111.5 Type overviewUnit typeecoTEC plusDesignated coun

Adapting the unit to the heating installation40 ecoTEC plus installation and maintenance instructions 0020134823_0112Code Parameters Adjustable values

Adapting the unit to the heating installationecoTEC plus installation and maintenance instructions 0020134823_01 411212.1.1 Setting the heating parti

Adapting the unit to the heating installation42 ecoTEC plus installation and maintenance instructions 0020134823_0112TFlow (target) [°C]Set maximum bu

Adapting the unit to the heating installationecoTEC plus installation and maintenance instructions 0020134823_01 431212.2 Handing the boiler over to

Inspection and maintenance44 ecoTEC plus installation and maintenance instructions 0020134823_011313 Inspection and maintenance13.1 Inspection and ma

Inspection and maintenanceecoTEC plus installation and maintenance instructions 0020134823_01 451313.1.1 General inspection and maintenance instructi

Inspection and maintenance46 ecoTEC plus installation and maintenance instructions 0020134823_011313.1.3 Checking the CO2 contentThe CO2 content mus

Inspection and maintenanceecoTEC plus installation and maintenance instructions 0020134823_01 4713If the flue gas value has to be set, proceed as foll

Inspection and maintenance48 ecoTEC plus installation and maintenance instructions 0020134823_011313.2 Inspection and maintenance workThe following

Inspection and maintenanceecoTEC plus installation and maintenance instructions 0020134823_01 491313.2.1 Filling the boiler and the heating installat

ecoTEC plus installation and maintenance instructions 0020134823_01 5aSafetya22 Safety2.1 Safety and warning information > When installing the ec

Inspection and maintenance50 ecoTEC plus installation and maintenance instructions 0020134823_011313.3.2 Carrying out electronics self-testsMenu ¬ In

Inspection and maintenanceecoTEC plus installation and maintenance instructions 0020134823_01 51133413.6 Separate the gas pipework (VUGB1006/5-5

Inspection and maintenance52 ecoTEC plus installation and maintenance instructions 0020134823_0113 > Remove the plug from the upper safety cut-out

Inspection and maintenanceecoTEC plus installation and maintenance instructions 0020134823_01 5313113.10 Replacing electrodes > Remove the electrod

Inspection and maintenance54 ecoTEC plus installation and maintenance instructions 0020134823_011389101113567121181012567913806/5-51006/5-51206/5-5441

TroubleshootingecoTEC plus installation and maintenance instructions 0020134823_01 551413.5.9 Checking the boiler > Commission the boiler in accor

Troubleshooting56 ecoTEC plus installation and maintenance instructions 0020134823_011414.2.2 Overview of status codesDisplay MeaningHeating modeS00

TroubleshootingecoTEC plus installation and maintenance instructions 0020134823_01 571414.2.4 Calling up diagnostics levelsMenu ¬ Installer level ¬ Di

Troubleshooting58 ecoTEC plus installation and maintenance instructions 0020134823_0114Display Meaning Display value/adjustable valueD.033 Fan speed t

TroubleshootingecoTEC plus installation and maintenance instructions 0020134823_01 591414.2.6 Reading fault codesIf a fault develops in the boiler,

6 ecoTEC plus installation and maintenance instructions 0020134823_01 aSafetya22.3 Basic safety information > Observe the following safety informa

Troubleshooting60 ecoTEC plus installation and maintenance instructions 0020134823_011414.2.9 Overview of fault codesCode Meaning CauseF.00 Flow temp

TroubleshootingecoTEC plus installation and maintenance instructions 0020134823_01 6114Code Meaning CauseF.73 Water pressure sensor signal in the wron

Replacing components62 ecoTEC plus installation and maintenance instructions 0020134823_011515 Replacing componentsThe work described in this section

Replacing componentsecoTEC plus installation and maintenance instructions 0020134823_01 6315 > Slide the side section to the rear. > Secure the

Replacing components64 ecoTEC plus installation and maintenance instructions 0020134823_0115 > On the VU GB 806/5-5 only: Use the three nuts to sec

Replacing componentsecoTEC plus installation and maintenance instructions 0020134823_01 6515115.6 Loosen the locking plate > On the heat exchanger

Decommissioning66 ecoTEC plus installation and maintenance instructions 0020134823_011616 Decommissioning16.1 Temporarily shutting down the boilerb

Technical dataecoTEC plus installation and maintenance instructions 0020134823_01 671818 Technical dataecoTEC plus UnitecoTEC plusVU GB 806/5-5ecoTE

Glossary68 ecoTEC plus installation and maintenance instructions 0020134823_011919 Glossary Burner anti-cycling timeThe burner is electronically locke

AppendixecoTEC plus installation and maintenance instructions 0020134823_01 692020 AppendixCommissioning checklist

ecoTEC plus installation and maintenance instructions 0020134823_01 7aSafetya2Using the correct gas typeUsing the wrong gas type may cause a fault sh

Index72 ecoTEC plus installation and maintenance instructions 0020134823_01IndexAAccessories...

Index73ecoTEC plus installation and maintenance instructions 0020134823_01MMains connection ...

0020134823_01 GBIE 122012 – Subject to changeManufacturerSupplier

8 ecoTEC plus installation and maintenance instructions 0020134823_01 aSafetya22.4.2 Installation site The installation site of the boiler should allo

ecoTEC plus installation and maintenance instructions 0020134823_01 9aSafetya2b Caution.Risk of material damage if the heating water is treated with