Viessmann B1KA - Specification

1.2 Specification
Gas boiler, series B and C,
Category II
2H3P
Rated heating output range (to EN 677)
T
F
/T
R
= 50/30 °C kW 6.5 - 19.0 6.5 - 26.0 8.8 - 30.0 8.8 - 35.0
T
F
/T
R
= 80/60 °C kW 5.9 - 17.3 5.9 - 23.7 8.0 - 27.3 8.0 - 31.9
Rated heating output range for DHW heating
– Gas condensing boiler kW 5.9 - 17.3 5.9 - 23.7 8.0 - 27.3 8.0 - 31.9
– Gas condensing combi boiler kW — 5.9 - 26.0 8.0 - 30.0 8.0 - 35.0
Rated heat input kW 6.1 - 17.8 6.1 - 24.3 8.2 - 28.0 8.2 - 32.7
Product ID CE-0085BT0029
IP rating IP X4D to EN 60529
Gas supply pressure
Natural gas mbar 20 20 20 20
kPa 2 2 2 2
LPG mbar 37 37 37 37
kPa 3.7 3.7 3.7 3.7
Max. permissible gas supply pressure
Natural gas mbar 25.0 25.0 25.0 25.0
kPa 2.5 2.5 2.5 2.5
LPG mbar 45.0 45.0 45.0 45.0
kPa 4.5 4.5 4.5 4.5
Sound power level (to EN ISO 15036-1)
Partial load dB(A) < 38 < 38 < 40 < 40
Power consumption
– In the delivered condition W 46 68 84 108
– Max. - gas condensing boiler W 84 92 98 108
– Max. - gas condensing combi boiler W — 104 105 119
Weight
– Gas condensing boiler kg 35 36 37 37
– Gas condensing combi boiler kg — 36 38 38
Heat exchanger capacity l 2.2 2.2 2.8 2.8
Max. flow rate
(limit for the use of hydraulic separation)
l/h 1018 1018 1370 1370
Rated circulation water volume at T
F
/T
R
= 80/60 °C l/h 743 1018 1173 1370
Diaphragm expansion vessel
Capacity l 8 8 8 8
Pre-charge pressure bar
kPa
0.75
75
0.75
75
0.75
75
0.75
75
Permiss. operating pressure bar
MPa
3
0.3
3
0.3
3
0.3
3
0.3
Dimensions
Length mm 350 350 350 350
Width mm 400 400 400 400
Height mm 700 700 700 700
Height with flue bend mm 860 860 860 860
Height with DHW cylinder, below mm 1925 1925 1925 1925
Instantaneous standby water heater (gas condensing combi boiler
only)
Hot and cold water connections G — ½ ½ ½
Permiss. operating pressure (on the DHW side) bar
MPa
— 10
1
10
1
10
1
Minimum pressure, cold water connection bar
MPa
— 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 — 26 30 35
Specific flow rate at ΔT 30 K (to EN 13203) l/min — 12.4 14.3 16.7
Gas connection G ¾ ¾ ¾ ¾
Connection values relative to max. load
Natural gas E
m
3
/h
1.88 2.57 2.96 3.46
LPG P kg/h 1.4 1.9 2.2 2.6
Vitodens 100-W
(cont.)
VITODENS
VIESMANN
5
5546 630 GB
1