11
installation
Reference Standards
In the United Kingdom, the installation and initial start-up of the
boiler must be by a Gas Safe registered installer in accordance
with the installation standards currently in eff ect, as well as with
any and all local health and safety standards i.e. Gas Safe.
In the Republic of Ireland the installation and initial start-up of
the appliance must be carried out by a Competent Person in
accordance with the current edition of I.S.813 “Domestic Gas
Installations” and the current Building Regulations, reference
should also be made to the current ETCI rules for electrical
installation.
The installation of this appliance must be in accordance with
the relevant requirements of the Local Building Regulations, the
current I.E.E. Wiring Regulations, the by-laws of the local authority,
in Scotland, in accordance with the Building Standards (Scotland)
Regulation and Health and Safety document No. 635, “Electricity
at Work Regulations 1989” and in the Republic of Ireland with the
current edition of I.S. 813 and the Local Building Regulations (IE).
C.O.S.H.H.
Materials used in the manufacture of this appliance are non-
hazardous and no special precautions are required when servicing.
Codes of Practive
Installation should also comply with the following British
Standards Code of Practice:
BS 7593:
Treatment of water in domestic hot water
central
heating
systems
BS 5546:
Installation of hot water supplies for
domestic
purposes
BS 5440-1:
Flues
BS 5440-2:
Air supply
BS 5449:
Forced circulation hot water systems
BS 6798:
Installation of gas fi red hot water boilers
of rated input not exceeding 70kW
BS 6891:
Installation of low pressure gas pipes up to
28mm
BS 7671:
IEE Wiring Regulations
BS 4814:
Specifi cation for expansion vessels
BS 5482:
Installation of L.P.G.
and in the Republic of Ireland in accordancce with the following
codes of practice:
I.S. 813
Domestic Gas Installations
Avoid installing the boiler where the air inlet can be polluted
by chemical products such as chlorine (swimming pool area), or
ammonia (hair dresser), or alkalin products (launderette).
Flue
Detailed information on fl ue assembly can be found in the
“
Connecting the Flue”
section.
The boiler must be installed so that the fl ue terminal is exposed
to the free passage of external air at all times and must not be
installed in a place likely to cause nuisance. It must not be allowed
to discharge into another room or space such as an outhouse or
closed lean-to.
Condensing boilers have a tendency to form a plume of water
vapour from the fl ue terminal due to the low temperature of
the fl ue gasses. The terminal should therefore be located with
due regard for the damage or discolouration that may occur to
building within the vicinity and consideration must also be given
to adjacent boundaries, openable windows should also be taken
into consideration when siting the fl ue.
The minimum acceptable clearances are shown below:
- A Directly below an opening, window, etc
300 mm
- B Horizontally to an opening, window, etc
300 mm
- C Below gutters, soils pipes or drain pipes
75 mm
- D Below eaves
200 mm
- E From vertical drain pipe or soil pipe
75 mm
- F From internal or external corner
300 mm
- G Above ground, roof or balcony level
300 mm
- H From a surface facing the terminal
600 mm
- I From a terminal facing a terminal
1200 mm
- J Vertically from a terminal on the same wall
1500 mm
- K Horizontally from an terminal on the same wall
300 mm
- L Fixed by vertical fl ue terminal
N
OTE
: T
HE
FLUE
MUST
NOT
BE
INSTALLED
IN
A
PLACE
LIKELY
TO
CAUSE
A
NUISANCE
AND
POSITIONED
TO
ENSURE
THAT
PRODUCTS
OF
COMBUSTION
DO
NOT
DISCHARGE
ACROSS
A
BOUNDARY
It may be necessary to protect the terminal with a guard, if this is
the case it will be necessary to purchase a stainless steel terminal
guard. Reference should be made to the Building Regulations for
guidance.
Ventilation
The room in which the boiler is installed does not require specifi c
ventilation. If the boiler is installed in a cupboard or compartment
ventilation is not required for cooling purposes.
