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Vaillant ecoTEC SERIES Instructions For Installation And Servicing

Vaillant ecoTEC SERIES
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Contents
Instructions for installation and servicing ecoTEC 839592_12
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Notes on the documentation . . . . . . . . . . . . . . . . 4
1.1.1 Applicable documents . . . . . . . . . . . . . . . . . . . . . . 4
1.1.2 Retention of documents . . . . . . . . . . . . . . . . . . . . 4
1.1.3 Safety instructions and symbols . . . . . . . . . . . . . 4
1.2 Validity of the manual . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6 CE marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.7 Gas council numbers . . . . . . . . . . . . . . . . . . . . . . . 5
2 Boiler specifications . . . . . . . . . . . . . . . . . . . . 6
2.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 General requirements . . . . . . . . . . . . . . . . . . . 10
3.1 Preliminary remarks for room sealed
appliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Related documents . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Contents included with delivery . . . . . . . . . . . . . 10
3.4 Installation site . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6 Flue pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.6.1 Standard 100 mm flue system . . . . . . . . . . . . . . . 13
3.6.2 Optional 125 mm flue system . . . . . . . . . . . . . . . . 13
3.7 Flue termination . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.8 Air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.9 Electrical supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.10 Guide to system requirements . . . . . . . . . . . . . . 15
3.10.1 Water circulation system . . . . . . . . . . . . . . . . . . . 15
3.10.2 Filling and preparing heating system . . . . . . . . . 15
3.10.3 Pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . 16
3.10.4 Pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.10.5 Expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.11 Pump specifications . . . . . . . . . . . . . . . . . . . . . . . 17
3.11.1 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.11.2 System by-pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.11.3 Venting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.12 Condensate trap . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Boiler installation sequence . . . . . . . . . . . . . . 18
4.1 Transporting the appliance . . . . . . . . . . . . . . . . . 18
4.2
Required minimum distances/assembly
clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2.1 Select position for boiler . . . . . . . . . . . . . . . . . . . 19
4.2.2 Unpack the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.3 Using boiler template . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Flue exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.4 Fitting the boiler hanging bracket . . . . . . . . . . . 20
4.5 Installing the flue system . . . . . . . . . . . . . . . . . . . 21
4.6 Fitting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7 Removing the front case . . . . . . . . . . . . . . . . . . . 21
4.8 General instructions for heating system . . . . . . 21
4.9 Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.10 Cold water mains inlet and hot water outlet
(ecoTEC combination boilers only) . . . . . . . . . . . 22
4.11 Condensate drain pipe . . . . . . . . . . . . . . . . . . . . . 23
4.12 Heating connection . . . . . . . . . . . . . . . . . . . . . . . 24
4.12.1 Heating flow and return connection . . . . . . . . . 24
4.12.2 Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . 25
4.13 Connecting the flue system to the boiler . . . . . 25
4.14 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . 25
4.14.1 General requirements . . . . . . . . . . . . . . . . . . . . . . 25
4.14.2 Connection to the main supply . . . . . . . . . . . . . . 26
4.14.3 Electric board layout . . . . . . . . . . . . . . . . . . . . . . . 27
4.15 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.15.1 Vaillant controls and accessories . . . . . . . . . . . . 30
4.15.2 External electrical controls . . . . . . . . . . . . . . . . . 30
4.15.3 Connection details for external time
switches and boiler terminal strip . . . . . . . . . . . 30
4.15.4 Vaillant optional plug in timer accessories . . . . 30
4.15.5 Connection details using the VR 65 Control
Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.16 Thermostatic radiator valves . . . . . . . . . . . . . . . 31
4.17 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.18 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.19 Anticycling ‘economiser’ control . . . . . . . . . . . . 31
4.20 Automatic pump spin control (APS). . . . . . . . . . 31
5 Commissioning Part I . . . . . . . . . . . . . . . . . . . 32
5.1 Preliminary electrical checks . . . . . . . . . . . . . . . . 32
5.2 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3 Cold water supply (ecoTEC combination
boilers only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.4 Filling and bleeding the heating system . . . . . . 32
5.4.1 Checking the filling pressure of the heating
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.4.2 ecoTEC plus combination boiler filling loop . . . 32
5.4.3 Filling the heating system in ecoTEC pro
combination boilers and ecoTEC plus system
boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.4.4 Filling the heating system for the first time . . . 33
5.5 Initial system flush (“cold”) . . . . . . . . . . . . . . . . . 33
5.6 Filling the condensate siphon . . . . . . . . . . . . . . . 34
5.7 Adjusting the pumping capacity . . . . . . . . . . . . . 34
5.8 Adjusting the by-pass . . . . . . . . . . . . . . . . . . . . . . 34
5.9 Checking the gas setting . . . . . . . . . . . . . . . . . . . 34
5.9.1 Checking for tightness of the flue gas
installation and flue gas recirculation . . . . . . . . 35
5.9.2
Checking the gas flow rate . . . . . . . . . . . . . . . . . 35
5.9.3 Checking the gas inlet working pressure . . . . . 36
5.10 Refitting the case . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.11 Adjusting the central heating output
(range rating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.12 Gas changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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Vaillant ecoTEC SERIES Specifications

General IconGeneral
ModelecoTEC SERIES
ErP RatingA
MountingWall-mounted
DimensionsVaries by model
WeightVaries by model
Fuel TypeNatural gas or LPG
NOx EmissionsClass 5 (less than 56 mg/kWh)
Output Range35kW

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