For the installerecoTEC plus 612ecoTEC plus 615ecoTEC plus 618ecoTEC plus 624ecoTEC plus 630ecoTEC plus 637ecoTEC plus 824ecoTEC plus 831ecoTEC plus 8
10 Instructions for installation and servicing ecoTEC3 General requirements3.1 Preliminary remarks for room sealed appli-ancesThis appliance should o
11Instructions for installation and servicing ecoTEC 12347865Fig. 3.1 Contents included with delivery of ecoTEC plus system boilersDO NOT remove the
12 Instructions for installation and servicing ecoTECbariFP1237654Fig. 3.3 Contents included with delivery of ecoTEC pro combi-nation boilersDO NOT
13Instructions for installation and servicing ecoTEC 3.5 Gas supplyThe gas supplier should ensure the availability of an adequate supply of gas. A gas
14 Instructions for installation and servicing ecoTEC3.7 Flue terminationThe following details refer to both flue systems.a. The terminal must be loc
15Instructions for installation and servicing ecoTEC 3.9 Electrical supplyA 230 V, ~ 50 Hz single phase electricity supply fused to 3 Amp. must be pro
16 Instructions for installation and servicing ecoTECVessel Volume [L]Initial system pressure (bar) 1.0 1.5Pressure relief valve setting (bar) 3.0Tota
17Instructions for installation and servicing ecoTEC – 5 mm either side of the boiler– 180 mm below the boiler– 165 mm* above the boiler when utili
18 Instructions for installation and servicing ecoTEC4.2 Flue exit• If using rear flue mark the position of the air/flue duct and its circumference.O
19Instructions for installation and servicing ecoTEC 4.8 Gas connection NoteWith the spacer frame (Art. No 308 650), the pipes can be fitted verticall
2ContentsInstructions for installation and servicing ecoTECContents1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 Notes
20 Instructions for installation and servicing ecoTECbar1234567Fig. 4.7 Installing the hot and cold water connection (ecoTEC pro combination boiler)
21Instructions for installation and servicing ecoTEC b) connecting into the internal discharge branch (e.g. sink waste or washing machine) with an ext
22 Instructions for installation and servicing ecoTECecoTEC plus system boiler12345Fig. 4.11 Heating-side flow and return connection for ecoTEC plus
23Instructions for installation and servicing ecoTEC Danger!This appliance must be earthed. Danger!Mains connection terminals L and N remain live eve
24 Instructions for installation and servicing ecoTEC4.13.3 Electric board layoutBurner cable harnessHydraulic cable harnessConnection for externale
25Instructions for installation and servicing ecoTEC X 2BUS— +24V7 8 9230VL N 3 4 5X 20X40X31X12X41Electronic control box
26 Instructions for installation and servicing ecoTECX 2BUS 24V7 8 9— +230VL N 3 4 5X 20X40X31X12X41Electronic control bo
27Instructions for installation and servicing ecoTEC 4.14 Controls4.14.1 Vaillant controls and accessoriesController Item no. ConnectionVRC 400 (1-cir
28 Instructions for installation and servicing ecoTEC4.16 Frost protectionThe boiler has an integral frost thermostat which is designed for protection
29Instructions for installation and servicing ecoTEC 5.4.1 Checking the filling pressure of the heating systembariFPplus probar12Fig. 5.1 Checking t
3Instructions for installation and servicing ecoTECContents7 Inspection and maintenance . . . . . . . . . . . . 357.1 Initial inspection . . . .
30 Instructions for installation and servicing ecoTEC5.4.3 Filling the heating system in ecoTEC pro com-bination boilers and ecoTEC plus system boil-
31Instructions for installation and servicing ecoTEC 5.7 Adjusting the pumping capacityOnly in ecoTEC plus boilers:The capacity of the two-stage pump
32 Instructions for installation and servicing ecoTEC Natural gas:DO NOT proceed with adjustment or attempt to put the unit into service if the inlet
33Instructions for installation and servicing ecoTEC 5.11 Adjusting the central heating output (range rating)The boilers are fully modulating for cen
34 Instructions for installation and servicing ecoTEC6.1.2 Heating• Switch on the appliance.• Make sure that there is a heating demand.• Press “i” t
35Instructions for installation and servicing ecoTEC with the heat input (kW) and temperature difference between flow and return.• Leave the user ins
36 Instructions for installation and servicing ecoTEC7.1.2 MaintenanceBefore commencing any servicing or maintenance work, carry out an initial inspec
37Instructions for installation and servicing ecoTEC 7.2 Servicing the burner module7.2.1 Removing the burner moduleThe burner module consists of th
38 Instructions for installation and servicing ecoTEC3412Fig. 7.3 Cleaning the integral condensation heat exchanger• Dismantle the burner module as d
39Instructions for installation and servicing ecoTEC • Reconnect the HT lead (5) and earth lead (6) to the spark electrode.• Insert the cables (8) o
4 Instructions for installation and servicing ecoTEC1 Introduction1 Introduction1.1 Notes on the documentationThe following information is intended t
40 Instructions for installation and servicing ecoTEC7.4 Checking the expansion vessel1Fig. 7.10 Checking expansion vessel admission pressure NoteIt
41Instructions for installation and servicing ecoTEC 8.1.1 Status codesThe status codes that you can see on the display pro-vides information about th
42 Instructions for installation and servicing ecoTECFirst Diagnostic level• Press the “i” and “+” keys simultaneously.The display shows “d.0”.• Use
43Instructions for installation and servicing ecoTEC Second diagnostic level• As described above in the first diagnostic level, scroll through the di
44 Instructions for installation and servicing ecoTECDisplay Meaning Display value/adjustable valued.78 Storage charging temperature limit (target flo
45Instructions for installation and servicing ecoTEC Code Meaning CauseF.25 Interruption in the compact thermal module cable har-nessCompact thermal m
46 Instructions for installation and servicing ecoTEC8.4 Test programsSpecial functions can be triggered on the appliances by activating various test
47Instructions for installation and servicing ecoTEC 1Fig. 9.1 Replacing burner• Loosen the 4 screws (1) on burner, and remove the burner.• Mount th
48 Instructions for installation and servicing ecoTEC1234Fig. 9.4 Replacing expansion vessel• Undo the nut (4) on the water pipe on the lower side of
49Instructions for installation and servicing ecoTEC321Fig. 9.6 Primary heat exchanger holder• Disconnect the plug-in connection (2) of the thermal f
5Instructions for installation and servicing ecoTEC The Valliant ecoTEC are state-of-the-art appliances which have been constructed in accordance with
50 Instructions for installation and servicing ecoTEC21Fig. 9.7 Carrying out measurement of CO2 levels, preparing for air-ratio adjustment• Measure t
51Instructions for installation and servicing ecoTECAppendixAppendix
839592_03 GB 03 2006
6 Instructions for installation and servicing ecoTEC2 Boiler specifications2.1 Technical dataTechnical dataecoTEC plusecoTEC pro28Units824 831 837CH h
7Instructions for installation and servicing ecoTEC Technical dataecoTEC plusUnits612 615 618 624 630 637CH heat output range 80 °C flow/60 °C return
8 Instructions for installation and servicing ecoTEC2.2 Dimensions2412064272088312510010044035 35130180300ecoTEC plus 630:334ecoTEC plus 637,ecoTEC pl
9Instructions for installation and servicing ecoTEC 2.4 Installation1234657891413121011Fig. 2.2 Function elements of combination boilersLegend:1 Expan
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