5technical data – Bosch GREENSTAR 24i junior User Manual
Page 6
TECHNICAL DATA
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior
8 716 107 336b (11/05)
5
TECHNICAL DATA
A
PPL
IA
N
C
E
INF
O
RM
A
T
IO
N
Domestic Hot Water
Min. heat input
KW
7.38
7.38
9.64
9.64
Max. rated heat output
KW
24
28
24
28
Max. rated heat input
KW
24.49
28.57
24.49
28.57
Gas flow rate - Max. 10 minutes from lighting
Natural Gas G20
m
3
/h
2.59
3.02
-
-
Propane Gas (LPG)
kg/h
-
-
1.9
2.22
Max. mains inlet pressure
bar
10
10
10
10
Min. mains inlet pressure (working) for max flow
bar
1.3
1.3
1.3
1.3
Min. mains inlet pressure (working) for operation
bar
0.2
0.2
0.2
0.2
Domestic Hot Water temperature setting
°C
55
55
55
55
Domestic Hot Water specific rate - 30°C rise
l/min
11.5
13.4
11.5
13.4
Max. Domestic Hot Water flow rate - 40°C rise +/— 15%
l/min
8.6
10
8.6
10
Central Heating
Max. rated heat input
KW
24.62
24.62
24.62
24.62
Max. rated heat output 40/30°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 80/60°C
KW
24
24
24
24
Max. flow temperature
°C
82
82
82
82
Max. permissible operating pressure
bar
2.5
2.5
2.5
2.5
Available pump head at 21°C system temperature rise
m
2.0
2.0
2.0
2.0
Flue
Flue Gas Temp. 80/60°C, rated/min. load
°C
78/63
78/64
79/64
79/65
Flue Gas Temp. 40/30°C, rated min. load
°C
54/35
54/36
55/38
55/39
CO
2
level at max. rated heat output
%
9.8
9.8
11.0
11.0
CO
2
level at min. rated heat output
%
9.2
9.2
10.5
10.5
NOx - class
5
5
5
5
Condensate
Max. condensation rate
l/h
2.0
2.0
2.0
2.0
pH value, approx.
4.8
4.8
4.8
4.8
Electrical
Electrical power supply voltage
AC...V
230
230
230
230
Frequency
Hz
50
50
50
50
Max. power consumption
W
140
140
140
140
General Data
SEDBUK
band
A
A
A
A
Appliance protection rating
IP
X4D
X4D
X4D
X4D
Appliance protection rating with mechanical or RF mechanical timer fitted IP
20
20
20
20
Permissible ambient temperatures
°C
0-50
0-50
0-50
0-50
Nominal capacity of appliance
Itr
3.9
3.9
3.9
3.9
Noise output level (Max central heating)
dB(A)
42
42
42
42
Packaged boiler weight
kg
44.4
44.4
44.4
44.4
Total boiler weight
kg
39.5
39.5
39.5
39.5
Lift weight
kg
27.1
27.1
27.1
27.1
SEDBUK
%
90.1
90.1
91.8
91.8
DESCRIPTION
NATURAL GAS
L.P.G.
UNITS
24i junior 28i junior
24i junior 28i junior