5
Description of Device
The unit is fired directly with
heating oil EL or diesel and can
be operated with or without an
exhaust-gas connection.
It is intended for mobile and fully
automatic deployment.
A fuel container is built under the
unit and it is equipped with auto-
matic tank heating, a high-pressu-
re atomizing oil burner with optical
flame monitoring, a low mainte-
nance axial ventilator, a connection
cable with plug, a room thermostat
socket and a fourfold filter system.
The unit complies with the basic
safety and health requirements
of the relevant EU stipulations and
is reliable and simple to operate.
The unit can be used e.g. in the
following areas:
■
Drying new buildings;
■
Point heating of outdoor
workplaces;
■
Point heating of workplaces in
open, non firehazard
fabrication rooms and halls;
■
Temporary heating of closed
and open areas;
■
De-icing of machines, vehicles
and non flammable storage
goods;
■
Tempering frost-endangered
parts
Safety temperature limiter
(STB)
The STB interrupts the supply
of fuel if the unit overheats and
causes the automatic burner relay
to switch off.
If the safety temperature limiter
has triggered, the cause of the
disturbance must first be localised
and eliminated. Resetting via the
„RESET“ key is only possible
after the sensor has cooled to be-
low ca. 90 °C.
The safety temperature limiter is
unlocked by pressing the
reset key [2].
1. Detach the protection cap[1].
2. Press the reset key [2].
3. Replace the protection cap [1]
4. Release the automatic burner
relay as well.
Working of Device
When the power plug is connected
to a power socket, the automatic
tank heater is activated for tempe-
ratures below 10 °C.
When the unit has been switched
on or when heat is required (auto-
matic function with room thermo-
stat) the supply air fan starts.
The fan blows air into and along
the combustion chamber.
When the preliminary ventilation is
over, the electromagnetic
valve opens and supplies fuel to
the nozzle.
The fuel, sprayed under high pres-
sure, is enriched by an adequate
quantity of oxygen according to
the heating capacity and ignited
by an electric spark. Once a flame
is burning, the automatic burner
relay begins monitoring the flame.
The automatic burner relay con-
trols all unit functionality fully au-
tomatically and monitors them for
safety. After a few seconds hot air
is blown out.case of any troubles,
or if the flame is unstable or tends
to go out, the unit is switched off
by the automatic burner relay.
The fault indicator warning lamp
of the automatic burner relay lights
up. A restart cannot be made
before the manual release of the
automatic burner relay.
When the unit has been switched
off via the operating switch or the
room thermostat, the supply air
fan continues running for some
time to cool down the combustion
chamber and then it stops automa-
tically.
Depending on the required heat
rate the function described
above is repeated automatically in
the case of
an operation with thermostat..
1
2
CAUTION
If the safety temperature
limiter has been tripped then
the cause of the malfunction
should be identified and recti-
fied before resetting it.
NOTE
In order to prevent the trigge-
ring temperature from being
exceeded again, the operating
conditions of the unit should
be checked before resetting
the safety temperature limiter.
CAUTION
Safety equipment may neither
be bridged nor blocked!
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