Gas Installation; Preparing For Installation; Connecting The Gas Line - Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual

5

Gas installation

The work described in this section must only be carried out
by a competent person.
5.1

Preparing for installation

Danger!
a
Risk of death caused by improper gas
installation!
An incorrect gas installation may result in
leaks and an explosion.
> During installation, the legal directives
and the local regulations for gas supply
companies must be observed.
Danger!
a
Risk of death caused by improper gas
installation!
Tension in the gas line may result in leaks
or an explosion.
> Make sure there are no stresses in the
gas lines when it is installed.
Caution.
b
Risk of material damage caused by incor-
rect gas installation.
Excess test pressure may cause damage to
the gas valve.
> When checking the gas valve for leak-
tightness, use a max. test pressure of
1.1 kPa (110 mbar).
> During the gas installation, ensure that
the home pressure regulation for the
required gas flow pressure of 5 mbar is
maintained in accordance with the tech-
nical data (
Caution.
b
Risk of material damage caused by con-
taminated lines.
Foreign bodies, such as welding remnants,
sealing residue or dirt in the supply lines
for gas, may cause damage to the boiler.
> Blow the gas line thoroughly clean prior
to installation.
ecoTEC plus installation and maintenance instructions 0020134823_01
¬ section 18).
Caution.
b
Risk of material damage caused by the
incorrect gas type.
Using the wrong gas type may cause a fault
shutdown on the boiler. Furthermore, igni-
tion and combustion noise may occur in the
boiler.
> Only use the gas type specified in the
type overview (
5.2

Connecting the gas line

5.1 Gas connection
> Fit an approved gas valve to the unit with a screw
connector.
> Fit the gas supply line to the gas valve.
> Purge the gas line before you start up the unit.
> Check the gas connection for leak-tightness.
Gas installation
¬ section 1.5).
5
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