BENEKOV K14, Operation And Installation Manual

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Lp
A
sound pressure level dB
54,7 ± 3,2
Required chimney draught mbar 0,05
–
0,08
0,05
–
0,09
0,05
–
0,10
Boiler connections: - heating water Js
G 1”
- return water Js
G 1”
Connection voltage 1 PEN 230V / 16A / ~ 50 Hz
Maximum electrical input power W 395 429
Electrical rating IP 20
Chart 2 Thermal-technical parameters of the boilers
Boiler type
BENEKOV
K14
BENEKOV
K20
BENEKOV
K25
Rated output kW 15 20 25
Adjustable output kW 4,5
– 15
6
– 20
7,5
– 25
Fuel consumption kg . hr
-1
1,0
– 3,2
1,3
– 4,5
1,7
– 5,8
Output in inhibition mode kW 1 1 1
Fuel consumption during inhibition kg . hr
-1
0,25 0,25 0,25
Burning time at rated output and full fuel
store hr 40 28 22
Boiler class according to EN 303-5 5 5 5
Eco design Yes Yes Yes
Flue gas temperature
- at rated output
°C
115 135 150
- at minimum output
°C
90 90 90
Efficiency at rated output % 91,3 90,4 89,5
Efficiency at minimum output % 88,1 89,1 90,0
Mass flow rate of flue gases at exit point
- at rated output kg . s
-1
0,007 0,008 0,013
- at minimum output kg . s
-1
0,003 0,004 0,005
Electrical input power at rated output W 45 55 64
Electrical input power at minimum output W 29 29 29
Electrical input power in STAND BY mode W 3 3 3
3. Boiler fuel specifications
Chart 3 specifies required (warrantied) types of fuel for BENEKOV K14, K20 and K25 boilers:
Chart 3 Required fuels
Fuel type according
to EN 303-5
C1
– wooden pellets
Grain (average) [mm]

6 - 8
Length [mm] max. 30
Bulk density [kg/m
3
] 600 - 650
Water content [%] max. 12
Ash content [%] max. 1,5
Calorific value [MJ.kg
-1
] min. 17
WARNING! Poor fuel quality can significantly affect the performance and emission parameters
of the boiler.
The pellets must meet the requirements of standard EN ISO 17225-2 Solid biofuels
– Specification and
fuel grades
– Part 2: Sorted wooden pellets.