Installation; General Instructions For The Heating System; Connecting Up The Gas Line - Vaillant ecoTEC exclusive 832 Installation And Maintenance Instructions Manual

5

Installation

5 Installation
5.1

General instructions for the heating system

b
Caution!
Risk of damage to the unit!
Residue in the pipes, such as welding beads,
scale, hemp, putty, rust and coarse dirt, may
be deposited in the appliance and cause mal-
functions.
> Flush the heating system thoroughly before
connecting the appliance in order to
remove any possible residue.
5.2

Connecting up the gas line

a
Danger!
Risk of death from incorrectly installed gas
system!
An improper gas installation may impair the
operational safety of the appliance and result
in material damage or personal injury.
> The gas installation may only be carried
out by a competent person approved at the
time by the Health and Safety Executive.
Work must be in accordance with regula-
tions introduced in 1998 governing the
safety of gas installations (installation and
use).
> The legal directives and the local regula-
tions for gas supply companies must be
observed.
a
Danger!
Risk of poisoning and/or explosion due to
escaping gas!
A gas line that is fitted under tension can
result in gas leaks, poisoning or explosion.
> Make sure there is no tension in the gas
line when it is installed.
b
Caution!
Possible risk of damage due to excessive
pressure!
The gas valve may be damaged if the operat-
ing pressure exceeds 60 hPa (mbar).
> Do not exceed the operating pressure of
60 hPa (mbar).
> Check the tightness of the gas valve using
a maximum pressure of 30 hPa (mbar).
16
Fig. 5.1 Gas connection
The Vaillant ecoTEC exclusive as supplied is only suitable
for use with G20 natural gas and can be converted for
use with G31 propane gas by the Vaillant Service or a
competent person approved at the time by the Health
and Safety executive and in accordance with the gas
safety (installation and use) regulations 1998.
The gas connection is to be via 20 mm Ø steel piping.
The dynamic gas connection pressure must be at least
19 – 23 hPa (mbar) for natural gas and 37 hPa (mbar) for
propane gas.
> The gas pipe should first be cleaned by blowing out
with compressed air. This prevents damage to the
appliance.
> Connect the compression gas service cock and 15 mm
copper outlet tail as supplied with the appliance and
tighten.
> Connect a gas supply pipe of not less than 15 mm
diameter to the copper tail.
> Tighten all connections.
(Ensure the gas supply pipework is adequately sized
such that a 20 hPa (mbar) gas pressure is available at
the boiler inlet at full flow rate).
Installation and maintenance instructions ecoTEC exclusive 0020017768_07