4. Boiler's data
Model
Parameter
Unit
SF 21
Class
Class 3 (topmost)
Efficiency
%
91,4 ÷ 92,9%
Nominal output
kW
21
Range of output
kW
6 ÷ 21
Fuel consumption at nominal output
kg/h
c. 5
Time till burn-out at nominal output
h
c. 20
Width
*-with optional larger fuel container
mm
850 / 1100*
Height
mm
1410
Depth
mm
635
Water volume
dm
3
64
Exhaust outlet diameter ext./int.
mm
120 /110
Water feeding and return connectors
inch
1¼
Top operation water pressure
bar
1,2
Top test water pressure
bar
2,0
Safety vent
bar
1,2
Water flow resistance in the boiler ΔT=10K
mbar
1,9
Water flow resistance in the boiler ΔT=20K
mbar
7,5
Required chimney draught
Pa
10
Exhaust temperature at maximum output
0
C
100
Exhaust temperature at minimum output
0
C
50
Maximum temperature of the boiler
0
C
85
Recommended temperature of the boiler
0
C
65 ÷ 80
Minimum temperature of the returning water
0
C
50
Exhaust flow at the nominal output
g/s
15
Exhaust flow at the minimal output
g/s
5
CO emission at the nominal output (10% O
2
)
mg/m
3
160
CO emission at the minimal output (10% O
2
)
mg/m
3
800
CO emission at the nominal output (13% O
2
)
mg/m
3
116
CO emission at the minimal output (13% O
2
)
mg/m
3
582
Noise
dB
below 65
Electricity plug-in
1 PEN ~50Hz 230V TN-S
Instrukcja Smart Fire
wer. 07/05/2010/ENG
HKS LAZAR
str.6
