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Installation and maintenance instructions ecoTEC plus 937 0020031552_06
15
It is possible to mount onto a wall made of flammable
material if the regulations of the Local Authority and
the legal building regulations are fulfilled. In this case
however, the unit would have to be mounted in a spe-
cially made enclosure. (You can also use an existing
cabinet or existing enclosure as long as it can be modi-
fied accordingly to suit the new application.) Further
details concerning the fundamental characteristics when
modifying existing cabinets or enclosures, including the
requirements for ventilation, are described in BS 6798.
i
If the boiler is to be installed in a half-tim-
bered house, the installation must be under-
taken in accordance with the Institute of Gas
Engineers Publication IG/UP/7 Edition 2 „Gas
installations in timber framed and light steel
framed buildings“.
i
If the boiler is to be installed in an airing
cupboard it is not required to separate the
boiler with a non-combustible partition. How-
ever installation and servicing clearances
must be maintained, and the appliance kept
clear of any clothing.
Please note the following instructions before choos-
ing where to install the boiler:
b
Caution!
Possible material damage due to an unsuit-
able installation location.
The appliance may be damaged by frost,
aggressive vapours or dust.
Do not install the appliance in rooms that
are susceptible to frost.
Do not operate the appliance in rooms with
aggressive vapours or dust unless it is
operated in way that does not depend on
the room air.
Make sure that, when selecting the installation location
and when operating the unit, the combustion air is free
from chemical substances which contain fluorine, chlo-
rine, sulphur etc. Sprays, solvents and cleaning agents,
paints, adhesives etc.can contain substances of this type
which can cause corrosion in the flue gas system, in the
worst case even if the unit is operated as an open vent
appliance. Particularly in hairdressing salons, lacquering
and finishing, cleaning facilities, the appliance must be
operated independent of the ambient air! Otherwise, a
separate installation room is required to guarantee that
the combustion air supply is free from the afore men-
tioned substances.
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4.3 Gas
supply
The gas provider must guarantee the availability of an
adequate gas supply. The connection of a gas meter in
the supply line is only permitted when carried out by the
gas provider and a company appointed by him.
If there is an existing gas meter you must check that it
is suitable for the required gas flow rate.
Installation pipes should be fitted in accordance with
BS 6891. In IE in accordance with the current issue of
IS 813. The pipework between the gas meter and the
combi boiler must be of an appropriate size. Do not use
any pipes that are smaller than the connection to the
combi boiler (22 mm). The entire installation must be
checked for leaks and purged in accordance with
BS 6891.
4.4
Flue pipe
a
Danger!
Risk of personal injury and material dam-
age as a result of malfunctions.
Malfunctions may be caused by using acces-
sories that are not specified in the Vaillant
installation manual for air/exhaust ducts.
Only use genuine Vaillant air/exhaust
ducts.
Vaillant appliances are only system-certified if genuine
Vaillant air/exhaust ducts are used.
The CE mark is only valid if the appliance is operated
with Vaillant air/exhaust ducts.
4.4.1
100 mm standard flue duct
667
87
65
30
74
48
Fig. 4.2 Item No. 303 933
A 100 mm standard flue duct (Item No. 303 933) is
available. Further information can be obtained from the
installation instructions for the flue duct.
Extensions are available to increase this length to a
maximum of 5.5 m. 87° elbows and 45° bends are also
available to increase the flexibility during installation.
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General requirements 4
Summary of Contents for ecoTEC plus 937
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