3
When the unit is out of use for some time the electric switch
supplying all the power-driven components in the system (i.e.
pumps, burner, etc.) should be switched off.
3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS
GENERAL
The burner shall be installed by qualified personnel and in
compliance with regulations and provisions in force; wrong
installation can cause injuries to people and animals, or
damage to property, for which the manufacturer cannot be
held liable.
Before installation, it is recommended that all the fuel supply
system pipes be carefully cleaned inside, to remove foreign
matter that might impair the burner operation.
Before the burner is commissioned, qualified personnel
should inspect the following:
a) the fuel supply system, for proper sealing;
b) the fuel flow rate, to make sure that it has been set based on
the firing rate required of the burner;
c) the burner firing system, to make sure that it is supplied for the
designed fuel type;
d) the fuel supply pressure, to make sure that it is included in the
range shown on the rating plate;
e) the fuel supply system, to make sure that the system
dimensions are adequate to the burner firing rate, and that the
system is equipped with all the safety and control devices
required by the regulations in force.
When the burner is to remain idle for some time, the fuel
supply tap or taps should be closed.
SPECIAL INSTRUCTIONS FOR USING GAS
Have qualified personnel inspect the installation to ensure that:
a) the gas delivery line and train are in compliance with the
regulations and provisions in force;
b) all gas connections are tight;
c) the boiler room ventilation openings are such that they ensure
the air supply flow required by the current regulations, and in any
case are sufficient for proper combustion.
Do not use gas pipes to earth electrical equipment.
Never leave the burner connected when not in use. Always
shut the gas valve off.
In case of prolonged absence of the user, the main gas
delivery valve to the burner should be shut off.
Precautions if you can smell gas
a) do not operate electric switches, the telephone, or any other
item likely to generate sparks;
b) immediately open doors and windows to create an air flow to
purge the room;
c) close the gas valves;
d) contact qualified personnel.
Do not obstruct the ventilation openings of the room where
gas appliances are installed, to avoid dangerous conditions
such as the development of toxic or explosive mixtures.
DIRECTIVES AND STANDARDS
Gas burners
European directives:
- Directive 2009/142/EC - Gas Appliances;
- Directive 2006/95/EC on low voltage;
- Directive 2004/108/EC on electromagnetic compatibility
Harmonised standards :
-UNI EN 676
(Gas Burners;
-CEI EN 60335-1 (Household and similar electrical appliances -
Safety. Part 1: General requirements;
- EN 50165 (Electrical equipment of non-electric appliances for
household and similar purposes. Safety requirements.
Light oil burners
European directives:
- Directive 2006/95/EC on low voltage;
- Directive 2004/108/EC on electromagnetic compatibility
Harmonised standards :
-CEI EN 60335-1 (Household and similar electrical appliances -
Safety. Part 1: General requirements;
- EN 50165 (Electrical equipment of non-electric appliances for
household and similar purposes. Safety requirements.
National standards :
-UNI 7824: Monobloc nebulizer burners for liquid fuels.
Characteristics and test methods
Heavy oil burners
European directives:
- Directive 2006/95/EC on low voltage;
- Directive 2004/108/EC on electromagnetic compatibility
Harmonised standards :
-CEI EN 60335-1 Household and similar electrical appliances -
SafetyPart 1: General requirements;
- EN 50165 Electrical equipment of non-electric appliances for
household and similar purposes. Safety requirements.
National standards :
-UNI 7824: Monobloc nebulizer burners for liquid fuels.
Characteristics and test methods
Gas - Light oil burners
European directives:
- Directive 2009/142/EC - Gas Appliances;
- Directive 2006/95/EC on low voltage;
- Directive 2004/108/EC on electromagnetic compatibility
Harmonised standards :
-UNI EN 676 Gas Burners
-CEI EN 60335-1 (Household and similar electrical appliances -
Safety. Part 1: General requirements;
- EN 50165 Electrical equipment of non-electric appliances for
household and similar purposes. Safety requirements.
National standards :
-UNI 7824: Monobloc nebulizer burners for liquid fuels.
Characteristics and test methods
Gas - Heavy oil burners
European directives:
- Directive 2009/142/EC - Gas Appliances;
- Directive 2006/95/EC on low voltage;
- Directive 2004/108/EC on electromagnetic compatibility
Harmonised standards :
-UNI EN 676
(Gas Burners;
-CEI EN 60335-1 (Household and similar electrical appliances -
Safety. Part 1: General requirements;
- EN 50165 Electrical equipment of non-electric appliances for
household and similar purposes. Safety requirements.
National standards :
-UNI 7824: Monobloc nebulizer burners for liquid fuels.
Characteristics and test methods.
.
.