Fuel Table; Fill Level In Boiler; Reloading Intervals When Operating Without Storage Tank Or If The Storage Tank Is Too Small - Fröling SP Dual compact 15 Operating Instructions Manual

Operating the system
Before heating up the boiler

4.4.4 Fuel table

4.4.5 Fill level in boiler

4.4.6 Reloading intervals when operating without storage tank or if the storage tank
is too small
Operating Instructions SP Dual compact | B1500319_en
The table below shows a selection of wood types with the corresponding energy
content depending on the water content:
Wood type
Spruce
Pine
Beech
Oak
The table below shows the relationship between fill level and weight. It compares
beech (example of hardwood) and spruce (example of soft wood) with a water content
of approx. 20%. Using our example above with beech, the fill level of an S1 Turbo 15
would, therefore, be approximately two-thirds.
Fill level
3/3 Beech
Spruce
2/3 Beech
Spruce
1/3 Beech
Spruce
Feed based on output:
Only replenish the fuel if energy is needed!
❒ If too much fuel is loaded, the boiler drops below its minimum output limit and
goes over to "constant burn" operating status (blower fan switches off)
➥ The level of efficiency drops in constant burn mode, the emissions
increase and the boiler can tar up (pitch formation!)
Energy content with water content [kWh/kg]
w = 15% w = 20%
4.3
4.3
4.1
4.1
Weight at fill level
S1 Turbo 15/20
approx. 28 kg
approx. 17 kg
approx. 19 kg
approx. 12 kg
approx. 9 kg
approx. 6 kg
NOTICE
w = 25%
4.0 3.7
4.0 3.7
3.8 3.5
3.8 3.5
4
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