16
DESCRIPTION
JUMBO space heaters have been designed for use in small to
medium-sized rooms and buildings where a fixed or mobile 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 combustion
chamber and the heat exchanger. The combustion chamber is of the
type where smoke circulates twice.
The air and smoke pass through separated ducts, both of which
are welded and sealed. When, after combustion, the waste gases have
cooled, they are expelled through a duct which must be connected to a
chimney or chimney flue. The chimney or chimney flue must be big
enough to guarantee that the smoke is expelled efficiently.
The air which is used in combustion is aspirated directly from the
room or building which is being heated. It is therefore of utmost im-
portance that the room or building be properly ventilated so that
enough fresh air is circulating at all times.
The air heads can be replaced by heads of the following types:
• a head with two or four openings, all of which must be kept
open.
• a head of the “plenum” type with four lateral openings and ad-
justable fins which send the hot air in the desired direction
(Fig.1).
Warning
During use, two of the four sides must be left open so as
to avoid overheating the combustion chamber.
Fig.1
Jumbo heaters can operate with burners that are fuelled by heating
oil, methane (G20) or L.P.G. (butane G30 and propane G31) of the ON-OFF
type.
Warning
Only the burners which are chosen and supplied by the
manufacturer can be used. If another type of burner is
used the heater no longer complies with CE regulations.
There are three safety devices which are activated in case of seri-
ous malfunction. The Burner Control Device, which is mounted on the
burner and has a restart button, automatically stops the burner if the
flame goes out. The Overhrat Thermostat, L2, of the manuel restart
type, is activated if the temperature of the combustion 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 to use more electrical current than the maximum permit-
ted limit; the warning light (10) lights up and the heater stops working.
If any of these safety devices are activated you should check care-
fully what the problem actually is before pressing the restart button
and starting the heater off again (“OBSERVED FAULTS, CAUSES AND
REMEDIES”).
Overheat safety thermostat, L1, shuts down the heater if air flow is
not sufficient to cool off combustion chamber: the heater will restart
automatically as soon as the heater has cooled down enough (The
lamp (9) lights up and then it cuts down).
GENERAL ADVICES
The space heater must be installed, set up and used in accordance
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 fire
or explosion.
• Inflammable material should be kept at a safe distance from the
heater (Minimum 3 meters).
• All fire prevention regulations must be adhered to.
• The room or building which is being heated must be sufficiently
ventilated so that the heater has enough air to function properly.
• The heater must be near a chimney or chimney flue and a suit-
able 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 furnace
(“TECHNICAL SPECIFICATION TABLE”);
• to make sure that there is adequate air circulation and air supply
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 the
airflow is not adequate, the combustion chamber will overheat
and the overheat safety thermostat L1 will turn the burner off
and on continnously (“OBSERVED FAULTS, CAUSES AND
REMEDIES”).
INSTALLATION
Warning
The following operations must be carried out by quali-
fied personnel only.
ELECTRICAL CONNECTIONS AND SETTINGS
Every space heater is supplied along with the safety and control
devices which are indispensable to the correct functioning of the unit.
The electric switchboard, burner, the fan thermostat, overheat safety
thermostat and the overheat thermostat with manual restart have al-
ready been connected.
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 switch board
which has a disconnecting switch.
The following operations must now be carried out:
• Plug in the power cord having read the adhesive label which de-
tails electricity supply characteristics (Tab.1). Tab. 2 shows the
adhesive label on units which have three-phase supply;
• The burner must be connected to the fuel supply (Burner In-
struction Manual).
• Connect the burner to the electricity supply with the burner plug.
• Connect accessories such as the room thermostat or clock to the
unit’s electric switchboard: electric wire must be connected by
means of the cable fastener (8) to the terminals 6 and 7.
Having completed all these operations check carefully that all
electrical connections correspond to the wiring diagram. When the
heater is first turned on you must check that the fan does not use more
current than the maximum permitted limit. Finally, to regulate the burn-
er follow the instructions in the Burner Instruction Manual.
Table 1
GB
Model
M - M/C
Model
T - T/C
Number of phases
1
3
Tension
[V]
230
230/400
Frequency
[Hz]
50
50
