wallas 26CC, Installation Manual

Page: 50 / 124

Installation
Fuel
Several different types of fuel can be used in the heater.
When selecting the fuel type, take note of the temperature limits of each particular
fuel. The limit values provided here are to be treated as guidelines. Confirm the
actual temperature limits from the fuel supplier.
•
light furnace oil / diesel, summer grade, temperature must not fall below –5 °C
•
light furnace oil / diesel, winter grade, temperature must not fall below –24 °C
•
light furnace oil / diesel, arctic winter grade, temperature must not fall below
–40 °C
• paraffin, the operating temperature must not fall below -40 °C
If the temperature drops lower than the minimum level, paraffin may form in the
fuel. This may result in the fuel filter and pump being clogged. The clog will dissolve
only if the fuel temperature rises clearly over 0 °C.
In winter conditions, arctic winter grade or paraffin must be used.
The less aromatic substances the fuel contains, the less deposits will be formed.
Normal furnace oils contain ca. 35–40 % aromatic substances. In coloured city
diesels (e.g. Tempera 3G and 5G) and green furnace oils the concentration is 20
%. Since paraffin contains 0.5 % aromatic substances, it generates practically no
scale when burning.
Confirm the actual temperature limits for the fuel you are using
from the fuel supplier.
en
26CC / 40CC
D80151
- 50 -
490525C