34
4.
For the Service Technician
4.4 Technical data for calculating the flue gas system acc.
to EN 13384-1 (for LWK 180–300)
4.5 Technical data – General (for LWK 180–300)
LogWIN Klassik
wood gasification boiler
Formula
symbols
Unit
LWK 180
LWK 250
LWK 300
min.
max.
min.
max.
min.
max.
Values in practical operation
(Average between two cleaning intervals)
Nominal thermal output
Q
N
kW
13
18
13
25
13
30
Nominal heat load
(firing thermal output)
Q
B
kW
14,3
19,3
14,3
27,2
14,3
33,8
Volume concentration of CO
2
σ
(CO
2
)
%
14,7
14,8
14,7
14,6
14,7
14,5
Flue gas mass flow rate
.
m
kg/s
0,0078
0,0107
0,0078
0,0151
0,0078
0,0184
Flue gas temperature
T
W
°C
110
160
110
180
110
195
Necessary feed pressure
P
W
Pa
5
10
5
10
5
10
Flue gas connection diameter
Ø
mm
130
130
130
130
130
130
1) see operating manual, Fuels section
2) ssee point 2.2.1.
3) by removing parts which are easy to disassemble (e.g. doors, hook-in plates, burnthrough plates, heating surface cleaning etc.).
4) without doors, cleaning cover and flue gas blower
LogWIN Klassik wood gasification boiler
Unit
LWK 180
LWK 250
LWK 300
Boiler class according to EN 303-5:2012
5
Nominal thermal output range
kW
13–18
13–25
13–30
Fuel type to EN 303-5:2012
permissible
A, C2
1)
A, C2
1)
A, C2
1)
Fuel water content
permissible
%
15–25
15–25
15–25
Burn duration at rated load/part load
Beech
Spruce
h
5,8 / 8,3
3,7 / 5,3
4,2 / 8,3
2,7 / 5,3
3,9 / 8,3
2,5 / 5,3
Filling chamber
W x D x H
Beech/spruce
mm
l
kg
394 x 562 x 640
145
37 / 24
Filling door dimensions
W x H
mm
430 x 397
Feed pressure during operation
(draught requirement)
Necessary
Maximum
mbar
0,10
0,20
Boiler temperature control range
°C
62–87
Boiler set temperature
°C
80
2)
Return temperature
min.
°C
61
Water-side resistance
∆
T = 20 °K
∆
T = 10 °K
mbar
2,1
7,2
3,4
14,0
5,5
20,0
Operating pressure
max.
bar
3
Test pressure
bar
4,5
Boiler water volume
l
114
Weight of boiler
net
kg
499
Minimum transport weight
3)
kg
430
Installation dimensions
W x D x H
mm
588 x 1120 x 1437
Minimum installation dimensions
4)
W x D x H
mm
588 x 967 x 1340
Electrical power consumption
Operation
Standby
Igniting
W
43
7
2000
49
7
2000
53
7
2000
Values from type test with beech
Testing office
TÜV SÜD Munich, test report no.: 1348-00/13)
Boiler efficiency
%
91,5
90,7
90,1
Flue gas temperature
rated load
part load
°C
123
97
150
97
170
97
