Ordering Fuel Oil - Viessmann VITODENS Operating Instructions Manual

Ordering fuel oil

Fuel oil quality
Vitoladens are approved for the combus-
tion of low sulphur fuel oil to DIN 51603-
EL-1 (max. sulphur content 50 ppm).
A condensate neutralising system is not
required (according to Code of Practice
ATV-DVWK-A 251 [Germany]) when
using this low sulphur fuel.
Fuel oil additives
Fuel oil additives are materials that can
be used providing they offer the following
characteristics:
■ Improvement of stability during fuel
storage.
■ Improvement of the thermal stability of
the fuel.
■ Reduction of odour development dur-
ing filling.
!
Please note
Fuel oil additives can create res-
idues and impair the safe opera-
tion of your heating system.
The use of fuel oil additives that
leave residues is not permissible.
If in doubt refer to your local heating contractor.
Combustion improvers
Combustion improvers are additives for
optimising fuel oil combustion.
Viessmann oil burners do not require
combustion improvers, as these burners
operate with clean and efficient combus-
tion.
!
Please note
Combustion improvers can cre-
ate residues and impair the safe
operation of your heating sys-
tem.
The use of combustion improvers
that leave residues is not permis-
sible.
Biofuels
Biofuels are made from vegetable oil,
e.g. sunflower or rapeseed oil.
!
Please note
Biofuels can lead to damage on
Viessmann oil burners.
Their use is not acceptable.
Appendix
41