Windhager LogWIN LWP 180 - Page 9

9
For the Installer
V
sp
= f · 15 · T
B
· Q
N
· (1 – 0.3
Q
H
)
Q
min
V
sp
= 15 · T
B
· Q
N
· (1 – 0.3
Q
H
)
Q
min
V
sp
= 55 litres · Q
N
1)
Correction factor f (Holzenergie Schweiz quality mark): A firewood boiler must be operated at nominal output for about 1 hour after starting. Additionally,
about 0.5 hour is required for heating up. As a rule, it is not possible to operate with the lowest possible output right from the start. The correction factor f
depends on the relationship between the nominal and lowest possible output levels and is individually set for each boiler (assumption: system reaches
nominal output 1.5 hours after starting).
LogWIN LWP 500
Formula
symbol
Unit Beech fully filled
Spruce fully
filled
Recommended accumulator tank l 3000 3000
Heat load of the building acc. to EN 12831
Q
H
kW 24.0 49.9 24.0 49.9
Burning duration of the LogWIN at nominal thermal output
T
B
h 4.6 2.9
Nominal thermal output of the LogWIN
Q
N
kW 49.9
Minimum thermal output of the LogWIN
Q
min
kW 24.0
Correction factor
1)
f 1.072 1.280 1.114 1.439
Selection and combinations of accumulator tank CWK/CWK or CWK/CWP:
The accumulator tanks can be combined with one another in parallel in a flexible way. The connection set CW-
021 (accessory) can be used for the following tank combinations.
Klassik
Premium
CWK 700
(720 l)
CWK 1000
(1000 l)
CWK 1500
(1500 l)
CWP 800 (800 l) 1520 l – –
CWP 1000 (960 l) – 1960 l 2460 l
Klassik
Klassik
CWK 700
(720 l)
CWK 1000
(1000 l)
CWK 1500
(1500 l)
CWK 700 (720 l) 1440 l – –
CWK 1000 (1000 l) – 2000 l 2500 l
CWK 1500 (1500 l) – 2500 l 3000 l
CaloWIN Premium with CaloWIN Klassik Two CaloWIN Klassik appliances
Other combinations are also possible in series operation. In this case, the accumulator tanks must be connect-
ed by the client (no connection set is available).
LogWIN LWP 300 LWP 360
Formula
symbol
Unit Beech fully filled
Spruce fully
filled
Beech fully filled
Spruce fully
filled
Recommended accumulator tank content: l 2000 2000 2500 2500
Heat load of the building acc. to EN 12831
Q
H
kW 13,0 29,9 13.0 29.9 17.8 35.6 17.8 35.6
Burning duration of the LogWIN at nominal thermal output
T
B
h 6.0 3.8 6.3 4.1
Nominal thermal output of the LogWIN
Q
N
kW 29.9 35.6
Minimum thermal output of the LogWIN
Q
min
kW 13.0 17.8
Correction factor
1)
f 1.066 1.368 1.103 1.579 1.051 1.179 1.078 1.273