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3. installation
3.1 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 effect,
as well as with any and all local health and safety standards
i.e. CORGI.
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 accordance 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).
10
3.1.1 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:
Fig. 3.1
- A Directly below an opening, window, etc
- B Horizontally to an opening, window, etc
- C Below gutters, soils pipes or drain pipes
- D Below eaves
- E From vertical drain pipe or soil pipe
- F From internal or external corner
- G Above ground, roof or balcony level
- H From a surface facing the terminal
- I From a terminal facing a terminal
- J Vertically from a terminal on the same wall
- K Horizontally from an terminal on the same wall 300 mm
- L Fixed by vertical fl ue terminal
N
: T
OTE
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.
3.1.2 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.
300 mm
300 mm
75 mm
200 mm
75 mm
300 mm
300 mm
600 mm
1200 mm
1500 mm
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