Gas boiler, type B and C, category II
2N3P
Type
B2UE
Rated heating output range (details to EN 15502)
T
F
/T
R
= 50/30 °C
Natural gas
kW
1.9 - 11.0
1.9 - 19.0
1.9 - 25.0
LPG
kW
2.5 - 11.0
2.5 - 19.0
2.5 - 25.0
T
F
/T
R
= 80/60 °C
Natural gas
kW
1.7 - 10.1
1.7 - 17.4
1.7 - 22.9
LPG
kW
2.2 - 10.1
2.2 - 17.4
2.2 - 22.9
DHW cylinder
Capacity
l
170
170
170
Permiss. operating pressure (DHW side)
bar
10
10
10
MPa
1
1
1
Continuous DHW output
kW
17.48
21.70
26.51
For DHW heating from 10 to 45 °C
l/h
425.40
529.20
655.20
Performance factor N
L
*12
1.2
1.5
On request
Initial DHW output
For DHW heating from 10 to 45 °C
l/10 min
153.00
168.40
On request
Supply values
Relative to the max. load and 1013 mbar/15 °C
With gas
Natural gas E
m
3
/h
1.92
2.40
3.12
Natural gas LL
m
3
/h
2.23
2.79
3.63
LPG
kg/h
1.41
1.76
2.29
Flue gas parameters
*13
Temperature (at a return temperature of 30 °C)
– At rated heating output
°C
39
41
46
– At partial load
°C
38
38
38
Temperature (at a return temperature of 60 °C)
°C
65
67
72
Mass flow rate
Natural gas
– At rated heating output
kg/h
32.2
40.4
54.2
– At partial load
kg/h
3.2
3.2
3.2
LPG
– At rated heating output
kg/h
30.6
39.8
53.2
– At partial load
kg/h
3.9
3.9
3.9
Available draught
Pa
250
250
250
mbar
2.5
2.5
2.5
Max. amount of condensate
To DWA-A 251
l/h
2.5
3.2
4.1
Condensate connection
(hose nozzle)
Ø mm
20 - 24
20 - 24
20 - 24
Flue gas connection
Ø mm
60
60
60
Ventilation air connection
Ø mm
100
100
100
Standard seasonal efficiency [to DIN] at
T
F
/T
R
= 40/30 °C
%
Up to 98 (H
s
) [gross cv]
Energy efficiency class
– Heating
A
A
A
– DHW heating, draw-off profile XL
B
B
B
*12
At 70 ºC average boiler water temperature and cylinder storage temperature Tcyl = 60 ºC.
DHW performance factor NL depends on cylinder storage temperature Tcyl.
Standard values: Tcyl = 60 ºC → 1.0 × NL Tcyl = 55 ºC → 0.75 × NL Tcyl = 50 ºC → 0.55 × NL Tcyl = 45 ºC → 0.3 × NL.
*13
Calculation values for sizing the flue system to EN 13384.
Flue gas temperatures measured as gross values at 20 ºC combustion air temperature.
The flue gas temperature at a return temperature of 30 ºC is significant for sizing the flue system.
The flue gas temperature at a return temperature of 60 ºC is used to determine the application range of flue pipes with maximum permissi-
ble operating temperatures.
Vitodens 242-F
(cont.)
VITODENS
VIESMANN
43
5853906
5
Содержание Vitodens 200-W B2HE
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