The red "OUT 1" LED indicates the operating condition of the fan
thermostat:
• When it is illuminated, the fan is running (ON);
• When it is not illuminated, the fan is switched off (OFF).
4.6 CONTROL OF THE TRIGGER TEMPERATURE OF THE BURNER
THERMOSTAT
Control of the trigger temperature of the burner thermostat
The temperature controller is programmed in a way that it
automatically switches the burner on or off depending on the
maximum temperature set for the combustion chamber. This
prevents overheating of the combustion chamber and thus triggering
of safety thermostat L2, which would switch off the air heater (see
also "Faults and troubleshooting" chapter).
The default thermostat setting for the maximum temperature of the
combustion chamber is 95 °C with a hysteresis of 5 °C.
The red "OUT 2" LED indicates the operating condition of the burner
thermostat: The LED sequence "- = +" indicates the current
temperature compared to the set temperature:
• If the red arrow above the "-" symbol lights up, the temperature
is below the set value and thus the thermostat enables operation
of the burner.
• If the green LED above the "=" symbol lights up, the temperature
equals the set value.
• If the red arrow above the "+" symbol lights up, the temperature
is above the set value and thus the thermostat disables operation
of the burner.
m
The trigger temperatures of the fan thermostat and burner
thermostat can be modified. However, this should only
be done if it is absolutely necessary. For this purpose,
please contact the Trotec service to obtain the information
required for reprogramming the temperature controller.
05. Care and maintenance
For a smooth operation of the device, the following tasks must be
performed regularly. Please note that the power supply of the air
heater must be interrupted beforehand.
m
All operations described in this chapter must be carried out
by appropriately qualified personnel. Before starting work,
make the following preparations:
• Switch off the device as described above in the "SWITCH-
OFF" section.
• Cut off the power supply using the circuit breaker.
• Wait until the device has cooled down.
• Proper operation of the device requires regular maintenance
activities. Make sure that you disconnect the air heater from
the electrical power supply before starting these activities.
5.1 CHECKING THE AIR HEATER AND THE FUEL OIL SUPPLY LINE
Please check the following:
• Make sure that the device is not positioned in areas with a high
risk of fires or in potentially explosive atmospheres
• Make sure to maintain a safety distance from flammable
• substances
In case of fuel oil leaks:
• Close the fuel oil shut-off valve
• Locate and repair the fuel oil leak
• Do not use the machine until the removed panels have been
reattached
• Make sure that the room to be heated is sufficiently ventilated
• Make sure that the air intake and outlet pipes are not blocked in
any way
• Make sure that there are no sheets or blankets placed on the
device
• Make sure that the device is in a firm and stable position
• Make sure that the air heater is regularly monitored
during operation and checked prior to start-up
5.2 CLEANING THE OUTSIDE OF THE DEVICE
For a failure-free operation, we recommend that you clean the fol-
lowing parts:
• Burner:
- Thoroughly remove dirt and residues
- Make sure that the air inlet is not clogged
• Clean the housing, lines, pipes, connectors and joints with a cloth
• Air inlet/outlet:
- Thoroughly remove dirt and residues
- Make sure that the air inlet is not clogged
Measure
Maintenance
Daily
Weekly
Semi-
annually
Annually
Check the air heater
x
Check the fuel oil supply line
x
Clean the outside of the device
x
Clean the motor and fan
x
Check the electrical connections
x
Check and test the burner
x
Check the thermostats
x
Clean the inside of the device
x
Inspect and clean the combustion
chamber
x
EN
Operating manual – IDS 900
A -
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