13
ecoTEC plus 937 installation and maintenance manual
e
Danger!
Danger of death by electric shock!
If a room-sealed combi boiler is installed in a
room with a bath or a shower, the electrical
switches and the boiler controller, which operate
at mains voltage, must be mounted in locations
where any person in the bath or in the shower
cannot reach them.
In the event of installation in unusual locations, special
provisions may have to be made. Detailed instructions
for this can be found in BS 5546 and in BS 6798.
The ecoTEC plus 937 must be mounted on a flat, vertical
wall which is sufficiently strong to hold the weight of the
shift load storage tank and the combi boiler.
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
specially made enclosure. (You can also use an existing
cabinet or existing enclosure as long as it can be
modified 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.
h
Note!
If the boiler is to be installed in a half-timbered
house, the installation must be undertaken in
accordance with the Institute of Gas Engineers
Publication IGE/UP/7/1998 "Guide for Gas In-
stallation in Timber Framed Housing".
Note!
If the boiler is to be installed in an airing
cupboard it is not required to separate the
boiler with a non-combustible partition.
However installation and servicing clearances
must be maintained, and the appliance kept
clear of any clothing.
Please note the following instructions before choosing
where to install the boiler:
a
Caution!
Danger of damage to the unit from the effects
of frost!
Do not install the shift load storage tank and
combi boiler in rooms where there is a danger of
frost.
Caution!
In rooms with aggressive damp or dust the
combi boiler must be operated independent of
the ambient 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,
chlorine, 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 mentioned substances.
3.5 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 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.
3.6
Flue pipe
d
Danger!
Vaillant appliances are only system-certified if
genuine Vaillant flue pipes are used. Only use
genuine Vaillant flue pipes. Malfunctions can
occur if you use other accessories. These may
result in damage and injury. You will find a list
of genuine flue pipes in the Vaillant installation
manual for flue pipes.
The CE mark is valid only if the appliance is
operated with Vaillant flue pipes.
3.6.1
100 mm standard flue duct
667
87
65
30
74
48
Fig. 3.2 Item No. 303 933
General requirements 3
