Viessmann B1HF - Page 108

108
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
Standby instantaneous water heater
DHW and cold water connections G ½ ½ ½
Permiss. operating pressure (DHW side) bar
MP
a
10
1
10
1
10
1
Minimum pressure, cold water connection bar
MP
a
1.0
0.1
1.0
0.1
1.0
0.1
Outlet temperature, adjustable °C 30-60 30-60 30-60
Continuous DHW output kW 30.3 31.5 35.4
Spec. water flow rate (D)
At ΔT = 30 K (to EN 13203-1)
l/mi
n
14.45 15.59 17.04
Supply values
Relative to the max. load and 1013 mbar/15 °C
Natural gas E
m
3
/
h
2.8 3.24 3.69
Natural gas LL
m
3
/
h
3.26 3.76 4.29
LPG kg/h 2.06 2.38 2.71
*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
Specification
Specification (cont.)
6167586
Service