Cortina S manuel Ver.01
16
6
FUELS
Wood pellets are natural wood (dried sawdust or waste from machining) that has been formed
into pellets under highpressure. They have a very low moisture content and very high calorific
value.
6.1 Pellet quality
We recommend using pellets certified on new normative with EN Plus-A1 grade. If this quality
could not be found, the pellets must then comlpy with one of normatives given in the following
table:
Parameter
Standards
Unit
ENplus-A1
Specification
CEN/TS
14961-2
Grade A1
Old
ÖNORM
M1735
DIN+
(DIN
51731)
Moisture (M)
≤10.0
≤10.0
≤12.0
≤12.0
w-%
Ash, 550°C (A)
≤0.7
w-%
Ash, 815°C
≤0.7
≤0.5
≤0.5
w-%
Durability (DU)
≥97.5
≥97.5
≥97.7
w-%
Fines (F)
2
≤1.0
≤1.0
≤1.0
≤1.0
w-%
Additives
≤2.0
≤2.0
≤2.0
≤2.0
w-%
Net calorific value (Q)
≥4.6 & ≤5.3
≥4.6
≥5.0
≥5.0
kWh/kg
Net calorific value (Q)
≥16.5 & ≤19.0
≥16.5
≥18.0
≥18.0
MJ/kg
Bulk density (BD)
≥600
≥600
kg/m
3
6.2 Pellet size
Suitable pellet size for Cortina boiler:
Diameter 6 mm; maximum lentgh 40 mm.
6.2 Storing the pellets
1. Pellets are to be stored in a place where they are kept dry all year.
2. Legislation in your country must be observed regarding building specifications for storage
rooms.
WARNING
Damage to property
•
Use of unproper pellets in Cortina boiler can block air entrance to burner,
can cause damage on boiler and chimney. Use of these kind fuels will make
warranty of the boiler invalid.
