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5.4 Technical Data
5.4.1 B-Series (Boilerhouse)
MODEL B21 B26 B33
Nominal
Heat Output
kW
Btu/hr
14.7
50,000
17.6
60,000
21.0
71,650
21.0
71,560
23.5
80,000
27.1
92,380
27.1
92,380
29.0
99,050
32.7
111,600
Nominal
Heat Input
kW
Btu/hr
15.3
52,150
18.4
62,600
22.0
75,000
22.0
75,000
24.4
83,175
28.0
95,550
28.0
95,550
30.0
102,400
34.0
116,000
Burner
RDB 2.2 BX 15-21 RDB 2.2 BX 21-27 RDB 2.2 BX 27-33
Head
BX500 BX700 BX700
Secondary Air Damper B N/A N/A
Conventional
Flue Diameter
mm
in
100 or 125
4 or 5
100 or 125
4 or 5
100 or 125
4 or 5
Flue Gas Temp.
0
C
86
88
90 90
93
95 95
98
110
Smoke Bacarach
0 0 0
Kerosene Settings
Nozzle make
Danfoss 80°EH Danfoss 80°ES Danfoss 80°ES
size
0.45
0.55
0.60 0.55
0.65
0.75 0.75
0.85
0.85
Oil Pump
Pressure
bar
psi
6.8
99
8.0
116
8.0
116
10.0
145
8.7
126
10.0
145
9.0
131
8.0
116
10.0
145
% CO
2
Recommended
Maximum
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
11.5
12.5
Approx Fuel
Flow Rate
litres/h
Gals/h
1.65
0.36
1.98
0.44
2.35
0.52
2.35
0.52
2.65
0.58
2.98
0.65
2.98
0.65
3.40
0.75
3.81
0.84
Combustion Head
Position
mm
11.0
11.5
12.5 12.5
14.5
15.0 15.5
18.0
18.0
Flow Connection 1” BSP Female 1” BSP Female 1” BSP Female
Return Connection 1” BSP Female 1” BSP Female 1” BSP Female
Water
Content
litres
gals
22
4.8
22
4.8
22
4.8
Boiler Weight Wet kg
114 114 114
Factory Settings Highlighted in bold