Notes on the documentation 2
0020214491_01 ecoTEC plus Installation and maintenance instructions 7
2 Notes on the documentation
2.1 Observing other applicable documents
▶ You must observe all the operating and installation in-
structions included with the system components.
2.2 Storing documents
▶ Pass these instructions and all other applicable docu-
ments on to the system operator.
2.3 Applicability of the instructions
These instructions apply only to:
Product article number
VU GB 656/4-5 A
0010017820
2.4 Benchmark
Vaillant is a licensed member of the Benchmark Scheme.
Benchmark places responsibilities on both manufacturers
and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the
manufacturer’s instructions by a competent person approved
at the time by the Health and Safety Executive and that it
meets the requirements of the appropriate Building Regu-
lations. The Benchmark Checklist can be used to demon-
strate compliance with Building Regulations and should be
provided to the customer for future reference.
Installers are required to carry out installation, commission-
ing and servicing work in accordance with the Benchmark
Code of Practice which is available from the Heating and
Hotwater Industry Council who manage and promote the
Scheme.
Benchmark is managed and promoted by the Heating and
Hotwater Industry Council.
For more information visit www.centralheating.co.uk
3 Product description
3.1 Functional elements
1 Connection for the flue
pipe
2 Integrated condensation
heat exchanger
3 Air intake pipe
4 Compact thermal
module
5 Ignition electrode
6 Water pressure sensor
7 Pump
8 Filling connection (com-
bined filling and empty-
ing valve)
9 Connection for expan-
sion vessel
10 Electronics box
11 Condensate trap
12 Filling and drainage tap
flow
13 Connection for expan-
sion relief valve
14 Gas valve
15 Air separator
16 Volume flow sensor
17 Automatic air vent
18 Flow switch with control
lines
3.2 Information on the identification plate
The identification plate is mounted on the underside of the
product in the factory.
Information on the
identification plate
Meaning
Serial number for identification; 7th to 16th digits =
product article number
VU… Vaillant gas-fired wall-hung boiler for
heating
ecoTEC plus Product description
2H, G20 - 20 mbar
(2 kPa)
Gas group and gas connection pressure
as set at the factory
Cat. Unit category
Types Gas-fired boiler types