TECHNICAL
DATA
DESCRIPTI
ON
NATURAL
GAS
L.P.G.
Domest
ic
Hot
Water UNITS
25Si
30Si
25Si
30Si
Min. heat input
KW
7.38
7.38
9.
64
9.
64
Max.
ra
ted
heat
output
KW
25
30
25
30
Max. rated heat input
KW
25
.
51
30.61 25.51 30.61
Gas
flow
rate·
Max.
10
mi
nutes
from
Natural Gas
G20
m'l
h
2.7 3.24
Pl'opane Gas (LPG) kglh 1.98
2.
38
Max. mains inlet pressure
bar
10
10
10 10
Min. mains inlet pressure
(wo
rking) for max
flow
bar
1
.3
2 1.3 2
M
in
. mains inlet pressure (working)
for
operation
bar
0.2 0.2 0.2 0.2
Domestic H
ot
Water temperature range
•c
40·60
40-60
40·60
40·60
Domestic
H
ot
Water specific
rate
·
30
9
C
rise
Vmin
12
14.3
12
14.3
Max. D
omestic
Hot Wa.ler f
low
rate ·
4<>-C
rise
+1-
15%
I/
min
9 1
0.8
9 10.8
Centra
l
Heating
Max. rated
heat
input
KW
24
.
62
24
.62
24
.62
24
.
62
Max. rated heat output
40
/
30
9
C
KW
25
.
67
25
.67
25
.67
25
.67
Max. rated heat output
50/30°C
KW
25.45 25.45 25.45 25.45
Max. rated heat output
80
/6
0°C
KW
24 24 24 24
Max. flow temperature
•c
82 82
82 82
Max. permi:sslble operating pressure bar
2.5 2.5
2.5 2.5
Ava
i
lable
pump
head
at 21°C
system
te
mperature
rise
m 2.0 2.0 2.0 2.0
Flue
Rue
Gas
Temp.
8016~C
.
rated/min. l
oad
•c
78/65
78166
79
/6
6
79/67
Rue
Gas
Temp.
40/30'C
. rated
mm.load
•c
54/37 54/38
55
/
40
55
/
41
C0
2
level at
max.
rated heat output (after 30 mins) % 9.8
9.8
11
.0
11
.0
C02
level at mf
n.
rated heat output (after
30
mins} % 9.2
9.2
10.5 10.5
NOx
· class 5 5 5 5
Condensate
Ma.x.
condensation rate 1/h 2.0 2.0 2.0 2.0
pH
value, approx.
4.8 4.8 4.8 4.8
Electrical
Electrical
power supply vottage
AC
...
V
230
230
230
230
Fre
quency
Hz
50
50
60
50
Ma.x.
power
OOil$Umption
w 140 140 1
40
140
Gener
al
Data
SEDBUK
band
A A A A
Appliance protection rating
IP
X40
X40
X40 X40
Appliance protection rat
i-
ng
with mechanical
or
RF mechanical timer fitted
IP
20 20 20 20
Permi&slbh~
ambient temperatures
•c
0·50 0·50 0·50 0·50
Nomlnal capacity of appliance
lt
r 3.9
3.9 3.9
3.9
Noise output level (Max central heating} dB(A)
42 42
42 42
Packaged
bo
i
t.ar
weight
kg
44.4
44.4 44.4
44
.4
Total boiler w.aight
kg
39
.5
39.5 39.5
39
.5
Lift
we
ig
ht
kg
27
.1
27.
1
27.1
27.1
SEDBUK
%
90
.t
90.1
91.8 91.8
TECHN
I
CAL
DATA
INSTALLMION 4 SERYlCIN:i
INSf"'-'Cno
liS
F'Oit
V.'ORCESTER
G
~Et-:ST
AA
2!iSV30Si
;WORCESTER
8716
112C11!>3.1.~
Bosc:h Group
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