Viessmann B2HF - Gas condensing combi boiler (type B2 KF)

126
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C (P(50/30))
Natural gas kW 1.9 - 11 1.9 - 19 1.9 - 25 1.9 - 32
LPG kW 2.5 - 11 2.5 - 19 2.5 - 25 2.5 - 32
T
F
/T
R
= 80/60 °C (Pn(80/60))
Natural gas kW 1.7 - 10.1 1.7 - 17.5 1.7 - 23 1.7 - 29.3
LPG kW 2.2 - 10.1 2.2 - 17.5 2.2 - 23 2.2 - 29.3
Width mm 450 450 450 450
Height mm 700 700 700 700
Gas connection R ¾ ¾ ¾ ¾
Flue gas connection Ø mm 60 60 60 60
Ventilation air connection Ø mm 100 100 100 100
Supply values
relative to max. load
With gas
Natural gas E
m
3
/h
1.88 1.88 2.48 3.16
Natural gas LL
m
3
/h
2.19 2.19 2.88 3.68
LPG kg/h 1.38 1.38 1.82 2.32
Flue gas values
■
Mass flow rate (for DHW heating), natural gas kg/h 31.7 31.7 41.6 54.9
■
Mass flow rate (for DHW heating), LPG kg/h 30.1 30.1 41.0 53.9
Temperature (for DHW heating) °C 64 65 67 72
Max. temperature °C 120 120 120 120
Gas condensing combi boiler (type B2KF)
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C (P(50/30))
Natural gas kW 1.9 - 19 1.9 - 25 1.9 - 32
LPG kW 2.5 - 19 2.5 - 25 2.5 - 32
T
F
/T
R
= 80/60 °C (Pn(80/60))
Natural gas kW 1.7 - 17.5 1.7 - 23 1.7 - 29.3
LPG kW 2.2 - 17.5 2.2 - 23 2.2 - 29.3
Rated heating output for DHW heating
Natural gas kW 1.7 - 26.2 1.7 - 30.4 1.7 - 33.5
LPG kW 2.2 - 26.2 2.2 - 30.4 2.2 - 33.5
Rated heat input (Qn)
Natural gas kW 1.8 - 17.8 1.8 - 23.4 1.8 - 29.9
LPG kW 2.3 - 17.8 2.3 - 23.4 2.3 - 29.9
Rated heat input for DHW heating (Qnw) kW 27.3 31.7 34.9
Product ID CE-0085CT0017
IP rating IP X4 to EN 60529
NO
X
Catego-
ry
6 6 6
Gas supply pressure See type plate
Max. permiss. gas supply pressure
*4
See table "Supply pressure" (Com-
missioning ...)
Rated voltage V 230
*4
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.)
5593201
Service