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13
Reference Standards
In the United Kingdom, the installation and initial start up of
the boiler must be by a CORGI Registered installer in
accordance with the installation standards curently 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 the 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 water
authority, in Scotland, in accordance with
the Building Standards (Scotland)
Regulation and Health and Safety
document No. 635, “Elelectricity 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 Practice
Installation should also comply with the following British
Standards Codes of Practice:
BS 7593:1992 Treatment of water in domestic hot
water central heating systems
BS 5546:1990 Installation of hot water supplies for
domestic purposes
BS 5440-1:2000 Flues
BS 5440-2:2000 Air Supply
BS 5449:1990 Forced ciculation hot water systems
BS 6798:2000
Installation of gas fired hot water
boilers of rated input not exceeding
70kW
BS 6891:1989 Installation of low pressure gas pipe up
to 28mm
BS 7671:2001 IEE Wiring Regulations
BS 4814:1990 Specification for expansion vessels
BS 5482:1994 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)
Flue
Detailed information on flue assembly can be found in Section
12 “Connecting the flue”.
The boiler must be installed so that the flue 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 flue terminal due to the low temperature of the
flue gasses. The terminal should therefore be located with due
regard for the damage or discolouration that might occur to
buildings in the vicinity and consideration must also be given to
adjacent boundaries, openable windows should also be taken
into consideration when siting the flue.
The minimum acceptable clearances are shown below:
- A Directly below an opening, window, etc 300 mm
- B Below gutters, soils pipes or drain pipes 75 mm
- C Below eaves 200 mm
- D From vertical drain pipe or soil pipe 75 mm
- E From internal or external corner 300 mm
- F Above ground on a public walkways or patio 2100 mm
- G From a surface facing the terminal 2500 mm
- H From a terminal facing the terminal 2500 mm
- I Vertically from a terminal on the same wall 1500 mm
- J Horizontally from a terminal on the same wall 300 mm
- K Horizontally from an opening window
300 mm
- L Fixed by vertical flue terminal
N
OTE: THE FLUE MUST NOT BE INSTALLED IN A PLACE LIKELY TO
CAUSE A NUISANCE.
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 specific
ventilation. If it is installed in a cupboard or compartment
permanent ventilation is not required for cooling purposes.
Gas Supply
The gas installation and soundness testing must be in
accordance with the requirements of BS 6891. Ensure that
the pipe size is adequate for demand including other gas
appliances on the same supply.
Fig. 11
10. Installation requirements
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