Appendix
6
60
Installation and servicing instructions condensing gas boiler 800 - 24/29/43/60 and 800 - 24T25/29T25 H/V • edition 02/2006
Subject to modifications resulting from technical improvements !
Buderus • http://buderus-domestic.co.uk
Technical data - cont'd
Size
Unit
800 – 24
800 – 24T25
H/V
800 – 29
800 – 29T25
H/V
800 – 43
800 – 60
Pipe connections
Gas
[inch]
R ½
R ½
R ½
R ½
R ½
R ¾
Flow & return
[mm]
Ø 28
Ø 28
Ø 28
Ø 28
Ø 28
Ø 28
Condensate water drain
[mm]
Ø 32
Ø 32
Ø 32
Ø 32
Ø 32
Ø 32
Flue gas values
Condensate water volume
natural gas
H
, 40/30
°
C
[
l
/
h
]
2.6
2.6
3.3
3.3
4.7
7.1
pH value condensate water
approx. 4.1
approx. 4.1
approx. 4.1
approx. 4.1
approx. 4.1
approx. 4.1
Flue gas mass flow full load
[
g
/
s
]
10.03
10.03
12.64
12.64
18.33
25.9
Flue gas temperature
Heating curve 40/30 °C
Heating curve 75/60 °C
[°C]
[°C]
45
65
45
65
45
65
45
65
45
65
45
65
CO
2
full load,
natural gas G20
[%]
9.2
9.2
9.2
9.2
9.2
9.3
Standard emission factor CO
[
mg
/
kWh
]
<15
<15
<15
<15
<15
<15
Standard emission factor NO
x
[
mg
/
kWh
]
<20
<20
<20
<20
<20
<20
Free feed pressure of fan
[Pa]
up to 140
up to 140
up to 140
up to 140
up to 140
up to 140
Gasrate G20
[m
3
/h]
2.33
2.33
2.96
2.96
4.25
5.98
Flue gas system
Type of flue gas system
B
23
, B
33
, C
13
, C
33
, C
43
, C
53
, C
73
depending on room air and independent of room air
Diameter of flue gas system
dependent on room air
independent of room air
[mm]
[mm]
80
80/125
concentric
80
80/125
concentric
80
80/125
concentric
80
80/125
concentric
80
80/125
concentric
80
80/125
concentric
Electrical data
Mains connection voltage
[V]
230
230
230
230
230
230
Type of enclosure
IP40 (B
xx
)
IP4X (C
xx
)
IP40 (B
xx
)
IP4X (C
xx
)
IP40 (B
xx
)
IP4X (C
xx
)
IP40 (B
xx
)
IP4X (C
xx
)
IP40 (B
xx
)
IP4X (C
xx
)
IP40 (B
xx
)
IP4X (C
xx
)
Power consumption
full load
partial load
[W]
[W]
120
60
120
60
130
70
130
70
180
85
200
100
Boiler dimensions and weight
V
H
V
H
Height
Width
Depth
[mm]
[mm]
[mm]
685
560
431
1250
560
431
685
900
431
685
560
431
1250
560
431
685
900
431
685
900
431
685
900
431
Weight without casing
[kg]
41
71
66
48
77
70
53
61
Weight casing
[kg]
11
14
11
11
14
11
11
11