15
2. FOR THE INSTALLER
If possible, use a trolley or fork-lift truck to transport the
heater. The heater must be vertical at all times during
transportation. The installer must ensure that the required
combustion air intake is not located in areas where
chemical substances are stored and/or used. Some
propellants, bleaches, degreasing substances and the
like, give off vapours which cause accelerated corrosion.
If the heater is used in areas where such substances are
present, the guarantee is null and void.
2.1 Installation procedure
This water heater must be fitted in a location which will
permit the provision of an approved flue system and
adequate ventilation. The water heater must stand on a
level surface resistant to heat and with sufficient strength
to support the weight of the unit when full of water. This
water heater must not be installed in a bath room,
bedroom or in a cupboard opening on to such rooms.
This water heater must not be installed in any area where
flamable materials are used or stored. Insufficient
ventilation may give rise to a risk of fire, explosion or
suffocation. If in doubt consult the national and local
regulations governing the installation of gas appliances
or your local British gas service department.
2.1.1 Installation
These water heaters must be installed by a qualified
competent installer, in accordance with the following
standards and regulations:
• Gas safety (installation and use) regulations 1944.
- BS 5440 part 1 1990;
- BS 5440 part 2 1989.
• Installation should be carried out in accordance with
all local authority and building regulations, local water
authority and fire regulations and the following British
standards: British Gas Publication UP1 and UP2.
- BS 5482 part 1 1979;
- BS 5482 part 2 1979;
- BS 5482 part 3 1979;
- BS 6644;
- BS 6700;
- BS 6798.
• Some chemicals produce vapours which can cause
rapid failure of thermocouples, burners and storage
tanks if they are drawn
into the combustion air supply. Therefore if this water
heater will be used to supply hot water to:
- Hairdressers;
- Dry cleaners;
- Industrial degreasing processes;
- Any other area where compounds containing
halogens are used and stored. Care should be
taken that all primary and ;
- secondary air is drawn from outside atmosphere
free of such contaminents.
For further advise contact A.O.Smith.
2.1.2 Water connections
A.O. Smith water heaters are suitable for connection to
vented, unvented and pumped pressurised systems. In
each case appropriate valves and fittings should be used
to ensure the system complies with the requirements of
the water by laws, and appropriate building regulations.
When fitting it is essential the rules of ‘good practice’ are
applied at all stages of installation.
