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Specification
(cont.)
Gas boiler, type B and C, category II
Type
Rated heating output range (details to EN 15502)
T
/T
= 50/30 °C
F
R
Natural gas
LPG
T
/T
= 80/60 °C
F
R
Natural gas
LPG
Flue gas parameters
Temperature (at a return temperature of 30 °C)
At rated heating output
–
At partial load
–
Temperature (at a return temperature of 60 °C, for DHW
heating)
Mass flow rate (for DHW heating)
Natural gas
At rated heating output
–
At partial load
–
LPG
At rated heating output
–
At partial load
–
Available draught
*6
Max. amount of condensate
To DWA-A 251
Condensate connection (hose nozzle)
Flue gas connection
Ventilation air connection
Standard seasonal efficiency [to DIN] at
T
/T
= 40/30 °C
F
R
Energy efficiency class
Appliances for multiple connection of type B1HF-[kW]-M and B1KF-[kW]-M
*4
Appliances for multiple connection of type B1HF-[kW]-M and B1KF-[kW]-M
*1
CH: The appliance has the following positive pressure (in Pascal) at the flue gas outlet: 200 Pa (2.0 mbar)
*6
2N3P
kW
kW
kW
kW
°C
°C
°C
kg/
h
kg/
h
kg/
h
kg/
h
Pa
mb
ar
l/h
Ø
mm
Ø
mm
Ø
mm
%
B1KF-26
B1KF-30
3.2 (5.7
) -
3.2 (5.7
*4
*1*4
25.0
25.0
3.2 - 25.0
3.2 - 25.0
2.9 (5.2
*1*4
) -
2.9 (5.2
*1*4
23.0
23.0
2.9 - 23.0
2.9 - 23.0
41
38
65
31.7
41.6
5.6 (9.8
*1*4
)
5.6 (9.8
30.1
3.9
250
250
2
3.7
20 - 24
20 - 24
60
100
100
Up to 98 (H
) [gross cv]
s
A
Specification
B1KF-35
) -
3.2 (5.7
) -
*1*4
32.0
3.2 - 32.0
) -
2.9 (5.2
*1*4
) -
29.3
2.9 - 29.3
46
59
38
38
67
72
54.9
*1*4
)
5.6 (9.8
*1*4
)
41
53.9
3.9
3.9
250
2
2
4.3
4.9
20 - 24
60
60
100
A
A
109
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