Vaillant ecoTEC VU User Manual

Table of contents
2 Installation and maintenance instructions ecoTEC 0020173113_01
Table of contents
1 Notes on the documentation .....................................4
1.1 Storing documents ..........................................................4
1.2 Symbols used ....................................................................4
1.3 Applicability of the instructions ...................................4
1.4 Identification plate ...........................................................4
1.5 CE label ...............................................................................4
1.6 Benchmark .........................................................................4
1.7 Type overview ...................................................................5
2 Safety .................................................................................6
2.1 Safety and warning information ..................................6
2.1.1 Classification of warnings ..............................................6
2.1.2 Structure of warnings .....................................................6
2.2 Intended use ...................................................................... 6
2.3 Basic safety instructions ................................................6
2.4 General requirements ..................................................... 7
2.4.1 Related documents ..........................................................7
2.4.2 Installation site .................................................................8
2.4.3 Gas supply .........................................................................8
2.4.4 Air supply ........................................................................... 9
2.4.5 Compartment ventilation ...............................................9
2.4.6 Electrical supply ...............................................................9
2.4.7 Water supply Combination boilers ...............................9
2.4.8 Water circulation system................................................9
2.4.9 Pressure relief valve ...................................................... 10
2.4.10 Venting ............................................................................. 10
3 Description of the appliance ......................................11
4 Installation ......................................................................12
4.1 Accessories .......................................................................12
4.1.1 Controller ..........................................................................12
4.1.2 Installation and operation .............................................12
4.2 Scope of delivery ............................................................12
4.2.1 Unpacking the boiler ......................................................12
4.2.2 Checking the scope of delivery ...................................12
4.2.3 Disposing of the packaging ..........................................13
4.3 Transporting the appliance ..........................................13
4.4 Requirements for the installation site .......................15
4.4.1 Required minimum clearances/
installation clearances ...................................................15
4.4.2 Using installation templates .........................................15
4.5 Dimension drawing and connection
measurements .................................................................17
4.6 Wall-mounting the boiler .............................................. 18
4.7 Removing/fitting the front casing ............................. 18
4.8 Removing/fitting the side panel ..................................19
5 Gas installation ............................................................ 20
5.1 Preparing for installation ............................................ 20
5.2 Connecting the gas pipe ............................................. 20
6 Hydraulic installation ..................................................21
6.1 Preparing for installation ..............................................21
6.2 Connecting the hot and cold water (VUW boiler) ..22
6.3 Connecting the domestic hot water cylinder ..........22
6.4 Connecting the heating flow and heating return...22
6.4.1 VUW boiler .......................................................................22
6.4.2 VU boiler ..........................................................................22
6.5 Low loss header .............................................................23
6.6 Connecting the condensate discharge pipework ...23
6.7 Connecting the discharge pipe to the expansion
relief valve on the boiler ..............................................23
7 Flue gas installation ...................................................25
7.1 Air/flue gas duct .............................................................25
7.2 Flue termination .............................................................26
8 Electrical installation .................................................29
8.1 Preparing for installation .............................................29
8.2 Opening/closing the electronics box .........................29
8.3 Establishing the mains connection ............................29
8.4 Connecting the controller ........................................... 30
8.4.1 Fitting the controller .................................................... 30
8.4.2 Connecting controllers to the electronic system ....31
8.5 Connecting additional components via VR 40 –
connecting a "2 in 7" multi-functional module .......31
8.6 Connection wiring diagrams .......................................32
9 Operation ....................................................................... 34
9.1 Overview of the read-off and setting options ........ 34
9.2 Calling up the installer level ....................................... 34
10 Commissioning ..............................................................35
10.1 Switching on the boiler .................................................35
10.2 Using test programs ......................................................35
10.3 Preparing the heating water .......................................36
10.4 Read off the filling pressure ........................................36
10.5 Filling and purging the heating installation ............36
10.5.1 Filling the heating installation ....................................36
10.5.2 Purging the heating system ........................................37
10.5.3 Flushing the system for the first time ("cold") ......37
10.6 Avoiding low water pressure .......................................37
10.7 Fill and purge the hot water system .........................37
10.8 Filling the condensate trap ......................................... 38
10.9 Converting the boiler for operation on the
Channel Islands ............................................................. 38
10.10 Adjusting the boiler to the gas used on the
Channel Islands ..............................................................39
10.11 Checking for tightness of the flue gas installation
and flue gas recirculation ...........................................40
10.12 Checking the gas flow rate .......................................41
i
BEFORE PROCEEDING - ENSURE BOILER IS
CORRECT FOR GAS GROUP SUPPLIED!

Vaillant ecoTEC VU Specifications

General

Brand	Vaillant
Model	ecoTEC VU
Category	Boiler
Language	English