Kostrzewa Mini Bio Luxury 12kW, User Manual, Page: 51 / 212

51
Mini Bio Luxury 12; 21kW
User Manual – EN 10.17
Leader in pellet boilers
Table 3. Mini Bio Luxury boiler data sheet
5. Boiler specifications
PARAMETER SI Mini Bio Luxury 12kW Mini Bio Luxury 21kW
Flue draught mbar 0,15-0,20 0,15-0,20
Water capacity dm 3 47 x
Maximum working pressure bar 2 2
Test pressure bar 4 4
Flue gas temperature at nominal power °C 126,5 135
Flue gas temperature at minimum power °C 83,9 85
Flue gas mass flow at nominal power kg/h 30,132 x
Flue gas mass flow at minimum power kg/h 14,256 x
Flue connector diameter mm 127 159
Boiler flow resistance for 10 K mbar 94 x
Boiler flow resistance for 20 K mbar 14,1 x
Hot water boiler power range kW 3,7 - 13,2 6,3 - 21
Efficiency at nominal power % 90,9 91
Efficiency at minimum output % 89,6 89
Boiler class as per EN 303-5:2012 5 5
Combustion time at nominal power (fuel calorific value): 17,280 kJ/kg)* h 42 28
Temperature control settings range °C 50-80 50-80
Minimum water temperature at boiler return °C 45 45
Fuel type Class Sawdust granulate (pellets) made to EN 17225-2 303-5:2012 /
PN- EN ISO 17225-2 - Class C1 / A1)
Storage hopper capacity L 220 230
Feed opening dimensions mm 550x550 560 x 560
Power supply [V,Hz, A] 230, 50, 2 230, 50, 2
Power consumption at nominal output W 110 130
Power consumption at minimal output W 32 41
Power consumption in "STAND BY" mode W 2 2
Power consumption at maximum output W 492 492
Max. noise level dB 52 x
Minimum buffer tank capacity:
V
Sp
= 15T
B
x Q
N
(1-0,3 )
where:
V
Sp
- buffer tank capacity in litres;
Q
N
- nominal heat output in kW;
T
B
- fuel combustion time in hours;
Q
H
- building heat load in kW;
Q
min
- minimum heat output in kW;
The size of hot water storage tank for multi-fuel boilers is selected for the fuel which requires the highest storage tank capacity. The minimum hot water storage tank
capacity is 300 litres.
Q
H
Q
min