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2. FOR THE INSTALLER
2.1 Installation instructions
This water heater must be tted in a
location which will permit the provision
os an approved ue system and
adequate ventilation.
A service clearance of 15 cm at the
sides and rear of the unit and 60 cm at
the front of the unit should be allowed
for ease of servicing. Adequate distance
must be allowed between the top of
the unit and any obstruction or ceiling
to allow the ue bafe and anode to be
inspected, cleaned or in the case of the
anode replaced if necessary.
The water heater must stand on a
level surface resistant to heat, insulted
in accordance with local bylaws and
Building Regulations 1985, with sufcient
strength to support the weight of the unit
when full of water.
This water heater must not be installed
in a bathroom, bedroom or in a cupboard
opening on to such rooms. This water
heater must not be installed in any area
where amable materials are used or
stored.
Insufcient ventilation may give rise to
a risk of re, explosion or suffocation. If
in doubt consult the national and local
regulations governing the installation of
gas appliances or your British gas sevice
department.
2.1.1 Installation
The installation of this water heater
should be carried out by a suitably
qualied competent person. It is a
criminal offence for unqualied persons
to install gas equipment.
Installation should be carried out in
accordance with all local authority and
Building Regualions, Model Water
Bylaws, bylaws of the local water
supplier, Building Standards (Scotland)
(Consolidation) Regulations and any
relevant requirements of the Local
Authority, local gas regions and the
following British Standards (current
editions):
For domestic applications:
BS 5440 - part 1 and part 2.
BS 5546 - Installation of gas hot
water supplies for domestic
purposes.
BS 6700 - Specications for design,
installation and maintenance
of services supplying water
for domestic use within
buildings and their curtilages.
BS 6798 - Specication for installation
of gas red hot water boilers
of rated input not exceeding
60 kW.
BS 6891 - Specication for installation
of low pressure gas pipework
of up to 28 mm in domestic
premises.
For non-domestic applications:
BS 5400 - part 1 and part 2.
BS 6798 - Specication for installation
of low pressure gas pipework
of up to 28 mm in domestic
premises.
CP 342 - Code of practice for
centralised hot water supply
part 2, buildings other than
individual dwellings and the
following additional Codes of
Practice.
IM/2 - Purging procedures for non-
domestic gas installations.
IM/5 - Soundness testing
procedures for industrial and
commercial gas installations.
IM/11 - Flues for commercial and
industrial gas red boilers
and air heaters.
IM/16 - Notes on installation of
pipework (excluding 25 mm
and below).
Some chemicals produce vapours which
can cause rapid failure of main- and
pilotburners and storage tanks if they are
drawn into the combustion air supply.
