General Advices - Desa Master BG 100 Manual Del Proprietário

DESCRIPTION
Warning: During use, two of the four sides must be left open
so as to avoid overheating of the combustion chamber.
BG space heaters have been designed for use in small to me-
dium-sized rooms and buildings where a fi xed heating system
is required.
Heat is produced by combustion and the heat from the smoke is
transmitted to the fresh air through the metal walls of the combu-
stion chamber and the heat exchanger. Smoke circulates twice
in this type of combustion chamber.
Air and smoke pass through separated ducts, both of which are
welded and sealed. When, after combustion, the waste gases
have cooled down, they are expelled through a duct which must
be connected to a chimney or chimney fl ue. The chimney or
chimney fl ue must be big enough to guarantee that the smoke
is expelled effi ciently.
The air which is used in combustion is aspirated directly from the
room or building which is being heated. It is therefore of utmost
importance that the room or building is properly ventilated to
guarantee the continual circulation of enough fresh air.
The air head has four lateral openings and adjustable fi ns which
send the hot air in the desired direction (Fig. 1).
BG heaters can operate with burners thatare fuelled by heating
oil, methane (G20) or LPG (butane G30 andpropane G31) of the
ON-OFF type.
There are three safety devices which are activated in case of se-
rious malfunction. The Burner Control Device, which is mounted
on the burner and has a restart button, automatically stops the
burner if the fl ame goes out. The Overheat Thermostat, L, of the
manual restart type, is activated if the temperature of the com-
bustion chamber rises above the set maximum limit; the warning
light (9) lights up and the heater stops working. The Thermal
Relay, RM, is activated if the fan motor starts using more electric
current than the maximum permitted limit; the warning light (10)
lights up and the heater stops working.
If any of these safety devices are activated you should check
carefully what the problem actually is before pressing the restart
button and starting the heater up again ("OBSERVED FAULTS,
CAUSES AND REMEDIES").

GENERAL ADVICES

Warning: Only the burners which are chosen and sup-
plied by the manufacturer can be used. If another type of
burner is used the heater will no longer comply with CE
regulations.
The space heater must be installed, set up and used in accor-
dance with existing laws.
Here are a few general guidelines which should be followed:
•Follow the instructions in this booklet very carefully.
•Don't install the heater in places where there may be a risk of
fi re or explosion.
• Infl ammable material should be kept at a safe distance from
the heater (Minimum 3 meters).
• All fi re prevention regulations must be adhered to.
• The room or building that is being heated must be suffi ciently
ventilated so that the heater has enough air to function pro-
perly.
• The heater must be near a chimney or chimney fl ue and a sui-
table electric switchboard.
• Don't let animals or children near the heater.
• After use make sure the disconnecting switch is off.
When using any type of space heater it is obligatory:
• not to exceed the maximum level of heat output of the furna-
ce.
• to make sure that there is adequate air circulation and air sup-
ply to the heater and that nothing is obstructing the aspiration
and expulsion of air. Movement of air may be obstructed in
various ways including placing covers or other objects on the
heater or positioning the heater too near a wall or other large
object. If there is insuffi cient air supply the combustion cham-
ber overheats and the overheat thermostat with manual restart
is activated.
INSTALLATION
Warning: Qualifi ed personnel must carry out the following
operations.
REMOVAL OF THE PALLET
To remove the space heater from the pallet on which it is atta-
ched for the transport, unscrew the fi xing screw of the inferior
Fig. 1 panel and lift the machine with a suitable mean of lifting using
the four points (a) (Fig. 2).
ELECTRICAL CONNECTIONS AND SETTINGS
Warning The mains supply to the heater must be earthed
and have a magneto-thermal switch with differential.
The power cord must be connected to a switchboard tha-
th as a disconnecting switch.
Every space heater is supplied along with the safety and control
devices which are indispensable to the correct functioning of the
unit.
The electric switch board, the fan thermostat and the overheat
thermostat with manual restart have already been connected.
The following operations must now be carried out:
HOT AIR GENERATOR
a
a
a
a
7
GB
Fig. 2