Vaillant ecoTEC VU 656/4 Manual de Instruções

For the heating engineerInstallation and maintenance instructionsecoTECGas fired wall hung high efficiency boilerVU 656/4GB

Installation and maintenance instructions ecoTEC 0020029173_01104 Assemblya Caution!Flush the heating installation thoroughly before installing the bo

11Installation and maintenance instructions ecoTEC 0020029173_014.4 Dimension drawing and connection dimensionsAØ 80/125R 117217232224 224121140752118

Installation and maintenance instructions ecoTEC 0020029173_01124.5 Required minimum gaps/assembly clearancesFor the installation/assembly of the boi

13Installation and maintenance instructions ecoTEC 0020029173_014.8 Removing/attaching the front casing12Fig. 4.5 Removing the boiler casingTo dismou

Installation and maintenance instructions ecoTEC 0020029173_0114Selection of the low loss headerThe low loss header uncouples the boiler from the heat

15Installation and maintenance instructions ecoTEC 0020029173_01Fig. 5.2 Low loss headerSafety devices• The outlet of the pressure relief valve must

Installation and maintenance instructions ecoTEC 0020029173_01165.1 Heating modeIn case of only one heating circuit to be operated downstream of the l

17Installation and maintenance instructions ecoTEC 0020029173_01Use the mounted ProE plug (1) to establish the electrical connection for the cylinder

Installation and maintenance instructions ecoTEC 0020029173_01185.4 Gas connectiond Danger!Danger of injury to persons and/or material damage due to i

19Installation and maintenance instructions ecoTEC 0020029173_015.6 Expansion relief valve (safety group), heating installation1234Fig. 5.11 Fitting

Installation and maintenance instructions ecoTEC 0020029173_0126 Start-up ... 256.1 Water

Installation and maintenance instructions ecoTEC 0020029173_0120b) connecting into the internal discharge branch (e.g. sink waste) with an external te

21Installation and maintenance instructions ecoTEC 0020029173_011342Fig. 5.14 Opening back wall of the electronic box987+-543NLBUS987+-543NLBUSFig. 5.

Installation and maintenance instructions ecoTEC 0020029173_0122• If a weather-compensated or room temperature control system is connected (continuou

23Installation and maintenance instructions ecoTEC 0020029173_015.8.5 Connection diagramsFlow switchPX20X2124+Signal-1 2 34 5 425911121311734165781213

Installation and maintenance instructions ecoTEC 0020029173_0124X11X6NLNLX13X116X41543NL987+200DCFRFAFFB1-NLNLX18X2224 V 230 V~Optional ext. controlle

25Installation and maintenance instructions ecoTEC 0020029173_016 Start-upa Caution!The boiler must only be operated with its casing properly and perm

Installation and maintenance instructions ecoTEC 0020029173_0126If the heating installation serves several floors, the values for the water pressure i

27Installation and maintenance instructions ecoTEC 0020029173_01h Note!If the installation kit is not present, do not operate the boiler. Contact Vail

Installation and maintenance instructions ecoTEC 0020029173_01286.3.2 Checking the gas flow rateThe boiler is fitted with a multifunctional automatic

29Installation and maintenance instructions ecoTEC 0020029173_01• Remove the pressure gauge and re-tighten the sealing screw (1).• Turn on gas at th

3Installation and maintenance instructions ecoTEC 0020029173_01Contents Notes on the documentation 11.1 Storage of documentsPlease pass on these insta

Installation and maintenance instructions ecoTEC 0020029173_01306.4.2 Cylinder charging• Switch on the boiler and the connected hot water cylinder.•

31Installation and maintenance instructions ecoTEC 0020029173_017 Adapting the boiler to the heating systemThe ecoTEC boilers are equipped with a Dig

Installation and maintenance instructions ecoTEC 0020029173_0132Display Meaning Adjustable parametersFactory settingBoiler-specific settingd. 0 Heatin

33Installation and maintenance instructions ecoTEC 0020029173_017.2.1 Setting the heating partial loadThe output of the boilers is set at 35 kW in th

Installation and maintenance instructions ecoTEC 0020029173_0134TFlow(target) [°C]Set maximum burner blocking time [min]1 5 10 15 20 25 30 35 40 45 50

35Installation and maintenance instructions ecoTEC 0020029173_018 Inspection and maintenance8.1 Inspection and maintenance intervals Danger!Risk of i

Installation and maintenance instructions ecoTEC 0020029173_0136- The gas inlet working pressure at maximum rate as described in section 6.3.3.- The

37Installation and maintenance instructions ecoTEC 0020029173_01• Remove the front casing.• Start the testing program P.1.• Wait at least 5 minutes

Installation and maintenance instructions ecoTEC 0020029173_0138.8.1.5 Inspection and maintenance work stepsNo. ActivityColumn 1 Inspection must be c

39Installation and maintenance instructions ecoTEC 0020029173_018.2 Filling/draining the boiler and heating installation8.2.1 Filling the boiler and

Installation and maintenance instructions ecoTEC 0020029173_0142 Description of the boiler2.1 Design123456710981415111213161817Fig. 2.1 Functional co

Installation and maintenance instructions ecoTEC 0020029173_0140H Danger!Danger of combustion and damage due to escaping hot flue gases!The silicone s

41Installation and maintenance instructions ecoTEC 0020029173_0112345678910Fig. 8.5 Installing the compact thermal module• Insert the compact thermal

Installation and maintenance instructions ecoTEC 0020029173_0142After that, both can be cleaned in the dismounted state. Take note also of the accompa

43Installation and maintenance instructions ecoTEC 0020029173_01a Caution!All O-rings must be replaced with new ones as otherwise leaks may occur!• S

Installation and maintenance instructions ecoTEC 0020029173_01449 Troubleshootingh Note!Whenever possible, please quote the fault code displayed (F.xx

45Installation and maintenance instructions ecoTEC 0020029173_019.1.2 Diagnosis codesIn the diagnosis mode, you can change certain parameters or displ

Installation and maintenance instructions ecoTEC 0020029173_0146Display Meaning Display value/adjustable valued.0 Heating partial load Adjustable heat

47Installation and maintenance instructions ecoTEC 0020029173_01Display Meaning Display value/adjustable valued.14 Pump speed target value Target valu

Installation and maintenance instructions ecoTEC 0020029173_0148Display Meaning Display value/adjustable valued.81 Operating hours hot water generatio

49Installation and maintenance instructions ecoTEC 0020029173_01Code Meaning CauseF. 0 Interruption, flow temperature sensor NTC plug not plugged in o

5Installation and maintenance instructions ecoTEC 0020029173_012.2 Type summaryBoiler type Designated country (designation in accord-ance with ISO 316

Installation and maintenance instructions ecoTEC 0020029173_0150Code Meaning CauseF.72 Flow and/or return temperature sensor fault Temperature differe

51Installation and maintenance instructions ecoTEC 0020029173_0110 Replacing componentsThe tasks listed below in this section may be carried out only

Installation and maintenance instructions ecoTEC 0020029173_015210.4 Replacing the heat exchangerd Danger!Before replacing the component, observe the

53Installation and maintenance instructions ecoTEC 0020029173_0113 Technical dataecoTEC VU 656/4 unitHeat Output Range (heating 50/30 °C) 14,6 - 67,

0020029173_01 GB 082010 – Subject to alterations

Installation and maintenance instructions ecoTEC 0020029173_016• Notify the gas supply company or National Grid Transco 0800 111999 by telephone from

7Installation and maintenance instructions ecoTEC 0020029173_01h Note!If the boiler is to be installed in a timber framed building, it should be fitte

Installation and maintenance instructions ecoTEC 0020029173_018GNNMMAIIOHHCBLJQQQKPD, EFIFig. 3.3 Termination of the flue pipeThe flue assembly shall

9Installation and maintenance instructions ecoTEC 0020029173_01Balcony/eavesGutterFlue pipeadequately fixedFlue pipe must project beyond every overhan