Viessmann B1HF - Page 106

106
Gas boiler, type B and C, category II
2N3P
Type B1KF-26 B1KF-30 B1KF-35
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C
Natural gas kW
3.2 (5.7
*4
) -
25.0
3.2 (5.7
*1*4
) -
25.0
3.2 (5.7
*1*4
) -
32.0
LPG kW 3.2 - 25.0 3.2 - 25.0 3.2 - 32.0
T
F
/T
R
= 80/60 °C
Natural gas kW
2.9 (5.2
*1*4
) -
23.0
2.9 (5.2
*1*4
) -
23.0
2.9 (5.2
*1*4
) -
29.3
LPG kW 2.9 - 23.0 2.9 - 23.0 2.9 - 29.3
LPG kW 3.0 - 23.4 3.0 - 23.4 3.0 - 29.9
Rated heat input for DHW heating (Qnw)
Natural gas kW
3.0 (5.3
*1*4
) -
26.5
3.0 (5.3
*1*4
) -
30.6
3.0 (5.3
*1*4
) -
35.3
LPG kW 3.0 - 26.5 3.0 - 30.6 3.0 - 35.3
Product ID CE-0085DL0217
IP rating to EN 60529 IP X4 to EN 60529
Gas supply pressure
Natural gas mb
ar
kPa
20
2
20
2
20
2
LPG mb
ar
kPa
50
5
50
5
50
5
Max. permiss. gas supply pressure
*5
Natural gas mb
ar
kPa
25.0
2.5
25.0
2.5
25.0
2.5
LPG mb
ar
kPa
57.5
5.75
57.5
5.75
57.5
5.75
Sound power level
(to EN ISO 15036-1)
At partial load dB(
A)
31.9 31.9 31.9
At rated heating output (DHW heating) dB(
A)
49.1 50 50.4
Power consumption
(in the delivered condition)
W 45 64 110
Rated voltage V 230
Rated frequency Hz 50
Appliance fuse protection A 4
Backup fuse (power supply) A 16
Communication module (integral)
WiFi frequency band MH
z
2400 - 2483.5
*4
Appliances for multiple connection of type B1HF-[kW]-M and B1KF-[kW]-M
*1
Appliances for multiple connection of type B1HF-[kW]-M and B1KF-[kW]-M
*5
If the gas supply pressure is higher than the maximum permissible value, install a separate gas pressure governor up-
stream of the system.
Specification
Specification (cont.)
6167586
Service