26
For the Service Technician
LogWIN wood gasification
boiler
Unit
LWP
180
LWP
250
LWP
300
LPW
360
LPW
500
Boiler class according to EN 303-5 3 3 3 3 3
Nominal thermal output range kW 13.0–17.4 13.0–25.0 13.0–29.9 17.8–35.6 24.0–49.9
Burn duration at rated load/part load
Beech
Spruce
h
10.3/13.8
6.6/8.8
7.2/13.8
4.6/8.8
6.0/13.8
3.8/8.8
6.3/14.6
4.1/8.2
4.6/9.6
2.9/6.0
Filling chamber
Beech/spruce
l
kg
176
50/32
176
50/32
176
50/32
226
64/40
226
64/40
Feed pressure during operation (draught
requirement)
Necessary
Maximum
mbar
0.10
0.20
Boiler temperature control range °C 60–87
Return temperature min. °C 45
Water-side resistance
ΔT = 20 K
ΔT = 10 K
mbar
2.1
7. 2
3.4
14.0
5.5
20.0
7. 2
37.5
14.0
50.0
Operating pressure max. bar 3
Test pressure bar 4.5
Boiler water volume l 127 147
Weight of boiler (net) kg 580 655
Minimum transport weight
1)
kg 463 519
Installation dimensions (W x D x H) mm
640 x 1200 x 1560 695 x 1200 x 1560
Minimum installation dimensions
2)
(W x D x H) mm
640 x 1020 x 1520 695 x 1020 x 1520
Filling door dimensions (W x H) mm 430 x 397
Filling chamber depth mm 562
Electrical power consumption W 47 53 58 60 66
Values from type test with beech
Testing office TÜV SÜD Munich, test report no.: 1240-00/08
Firing efficiency (100-q
A
)
%
95.2 94.6 94.0 93.4 91.6
Boiler efficiency
%
91.5 91.8 92.0 90.8 90.1
Flue gas temperature
rated load
part load
°C
105
97
126
97
143
97
146
94
175
109
4.3 Technical data for calculating the flue
gas system acc. to EN 13384-1
LogWIN wood gasification boiler
Formula
symbols
Unit
LWP
180
LWP
250
LWP
300
LPW
360
LPW
500
Values in practical operation
Nominal thermal output Q kW 17.4 25.0 29.9 35.6 49.9
Nominal heat load
(firing thermal output)
Q
N
kW 19.0 27.2 32.5 39.2 55.4
Volume concentration of CO
2
σ (CO
2
)
% 15
Flue gas mass flow rate at nominal output
.
m
kg/s 0.0102 0.0146 0.0174 0.0210 0.0296
Flue gas temperature at nominal output
(Average between two cleaning intervals)
T
W
°C 145 160 170 160 190
Necessary feed pressure
P
W
Pa 10
Flue gas connection diameter mm 130 150
4.4 Technical data – General
1)
by removing parts which are easy to disassemble (e.g. doors, hook-in plates, burnthrough plates, heating surface cleaning etc.).
2)
not including doors and blower motor