401
Thermo 230 / 231 / 300 / 301 / 350
4 Technical Data
4
Technical Data
Where no threshold values are specified technical data
are understood to include standard tolerances for heater
units of ± 10% at ambient temperature of + 20 °C and at
nominal voltage.
4.1
Electrical components
Control unit, fan and circulation pump motors, solenoid
valve, igniter box, heater cartridge, nozzle block preheater
and timer are 24V components. Temperature limiter,
flame sensor, temperature sensor and switches are
voltage independent components.
NOTE:
The allocation of circulation pumps to heater units must be
in accordance with coolant resistances.
4.2
Fuel
Suitable fuel is the diesel fuel specified by the vehicle ma-
nufacturer. Only the on the model plate of the heater
specified fuel must be used.
The following table lists the by Spheros approved fuels
and their specifications.
*
Further information on approved fuels contains the TI
(Technical Information) Fuels.
It can be found on the Spheros homepage under Ser-
vice/Technical Updates/Heating systems.
In case of air temperatures below 0°C a commercial avail-
able winter Diesel fuel must be used.
The usage of flow improvers respectively additives is per-
mitted. There are no negative influences due to additives
known.
ATTENTION:
While using the fuels, their operating limits must be
considered and if necessary, suitable measures
(nozzle preheating, electrical heated filter) should be
applied.
If fuel is supplied from the vehicle tank, follow the
vehicle manufacturer’s instructions on additives.
Fuel
Requirements
acc.
Summer diesel
DIN EN 590
Winter diesel
DIN EN 590
Arctic diesel and Diesel for a strong
winter climate
DIN EN 590
Bio diesel (FAME)
*
DIN EN 12214
Paraffinic diesel fuel from synthesis
or hydrogenation (HVO)
*
DIN EN 15940
Summary of Contents for spheros thermo 230
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