Installation Site; Gas Supply; Air/Flue Gas Duct; Hinweise Zur B23 Installation - Vaillant ecotec plus Installation And Maintenance Instructions Manual

3.2.2 Installation site

The location chosen for the boiler must permit the
provision of a satisfactory flue termination. The location
must also provide adequate space for servicing and air
circulation around the boiler. The boiler may be installed
in any room, although particular attention is drawn to
the requirements of BS 7671 (IEE Regulations), the
electrical provisions of the Building Regulations
(Scotland) and in IE the current edition of IS 813 and the
current ETCI rules, in respect of the installation of a
boiler in a room containing a bath or shower.
h Note!
Where a room sealed boiler is installed in a
room containing a bath or shower, any electrical
switch or boiler control utilising mains
electricity should be so situated that it cannot
be touched by a person using the bath or
shower.
In case of installation of the boiler in an unusual
location, special procedures may be necessary and
BS 5546 and BS 6798 give detailed guidance on this
aspect. The boiler must be mounted on a flat, vertical
wall, which must be sufficiently robust to take the
weight of the boiler.
The boiler may be installed on a combustible wall,
subject to the requirements of the Local Authorities and
Building Regulations. A compartment used to enclose
the boiler must be designed and constructed specifically
for this purpose. (An existing cupboard or compartment
may be used provided that it is modified for the
purpose). Details of essential features of
cupboard/compartment design including airing cupboard
installations are given in BS 6891. In IE the current
edition of IS 813.
Note!
h
If the boiler is to be installed in a timber framed
building, it should be fitted in accordance with
"IGE/UP/7 Edition 2 Gas installations in timber
framed and light steel framed buildings".
3.2.3

Gas supply

The gas supplier should ensure the availability of
sufficient gas flow rate. A gas meter may only be
connected to the service pipe by the supplier of gas or
their contractor. An existing meter should be checked to
ensure that it is capable of passing the rate of gas
supply required. Installation pipes should be fitted in
accordance with BS 6891, in IE in accordance with the
current issue of IS 813. Pipework from the meter to the
boiler must be of an adequate size. Do not use pipes of a
smaller size than the boiler gas connection. The
complete installation must be tested for lacks of
tighness and bled as described in BS 6891.
Installation and maintenance instructions ecoTEC plus 0020214490_00
Safety instructions and regulations 3
3.3

Air/flue gas duct

Danger!
d
Risk of personal injury and material damage
caused by unapproved air/flue pipes.
Vaillant boilers are certified only with genuine
Vaillant air/flue pipes. The use of other accesso-
ries may cause personal injury and material
damage, as well as operating faults. For instal-
lation type B23P, third-party accessories are
also permitted (see the technical data in the
appendix).
• Only use original Vaillant air/flue pipes.
• If third-party accessories are permitted for B23P, en-
sure that the flue gas pipe connections are properly
routed, sealed and secured against slipping out.
Only for commercial appliances:
For installations in cascade arrangement using the
appliance type B23p a common non-Vaillant flue system
serving more than one appliance shall be used. The
requirements of the flue installation instructions must
be met.
3.3.1 Information on installing the B23
Flue gas pipe in accordance with unit type B23 (open-
flued gas-fired wall-hung boiler) requires careful plan-
ning and implementation. During planning, observe the
technical data for the product and refer to the recog-
nised rules of technology.
3.3.2 Information and specifications for installing
the B23P
The flue gas system must at least correspond to the
classification T 120 P1 W 1 in accordance with EN 1443.
The maximum pipe length must be calculated based on
the permissible pressure difference in the technical data.
The maximum pipe length (straight pipe only) corre-
sponds to the maximum permitted flue gas pipe length
without any elbows. If elbows are used, the maximum
pipe length must be reduced in accordance with the dy-
namic flow characteristics of the elbows. Elbows must
not be connected directly after one another as this
method dramatically increases pressure losses.
In particular, if the flue pipe is installed in cold rooms or
outside of the building, the freezing point on the surface
of the inside of the pipe may be reached. A proven de-
sign in accordance with EN 13384-1 for a maximum boiler
load at a flue gas temperature of 40 °Cmust be used to
prevent this problem. The product must not be connect-
ed to a cascade flue gas installation that is being used
by other units.
• Observe the applicable international, national and
local regulations for flue gas systems, in particular for
installations in living rooms. Inform the operator how
to correctly operate the product.
7 7