Bartscher 70 Serie Manual De Instrucciones página 39

ƒ Gas Safety (Installation and Use) Regulations, 1984
ƒ Health and Safety at Work Act, 1974
ƒ Codes of Practice, BS6173, 1982
ƒ The Building Regulations, 1985
ƒ The Building Standards Regulations, 1981
For others countries apply to the relevant local rules:
ƒ Gas board rules
ƒ Building regulations and local fire prevention rules.
ƒ Safety norms in force
ƒ Rules of the Gas supplying company
ƒ The Electrical Norms in force
ƒ The Fire Brigade rules
Fumes evacuation
The appliances are divided into two types (see Table 1 – pag. 31):
Type "A" gas appliances
It is not necessary to connect this type of appliance directly to an evacuation pipe for combustion
products. The products of combustion, however, must be directed into suitable hoods or similar
devices, connected to a reliably efficient chimney, otherwise directly outside. The use of an
extractor fan connected directly to external environment with a capacity no lower than what is
stated in table 1. This value must be increased with the air exchange necessary for the well-being of
the operators, in accordance with the norms in force. (approximately a total of 35 m
gas output installed).
Type "B11" gas appliance
These appliances must be connected in one of the following ways:
• Natural evacuation (fig.8 – pag. 5).
Connection to reliable chimney with natural pull, interposing a pull device, letting out the
products of combustion directly outside.
• Direct forced evacuation (fig. 9 – pag.5 ).
Connection to a chimney with forced pull, putting in a pull device, letting out the products of
combustion directly into external environment. The energy supply to the appliance must be
controlled by the system of forced evacuation and must be interrupted in the event that its
capacity falls below the values prescribed by the norms in force. It must only be possible to
restart the gas supply manually.
• Forced evacuation under hood (fig. 10 – pag. 5).
In this case, the fumes evacuation device of the appliance must be brought to a height of 1,8 m
from floor level, and the outlet section of the evacuation pipes for products of combustion must
be placed inside the base perimeter of the hood. The energy supply to the appliance must be
controlled by the system of forced evacuation and must be interrupted in the event that its
capacity falls below the values prescribed by the norms in force. It must only be possible to
restart the gas supply manually.
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3
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