Viessmann VITODENS 300-W Technical Manual page 8

Vitodens 200-W
Gas boiler, series B and C,
Category II
2N3P
Type
1
Rated heating output range (to EN 677)
T /T = 50/30 °C
F R
T /T = 80/60 °C
F R
Nominal circulation water volume
at T /T = 80/60 °C
F R
Diaphragm expansion vessel
Capacity
Pre-charge pressure
Permiss. operating pressure
Safety valve connection
Dimensions
Length
Width
Height
Height with flue bend
Height with DHW cylinder below the boiler
Gas connection
Standby instantaneous water heater
Hot and cold water connections
Permiss. operating pressure (DHW side)
Minimum pressure, cold water connection
Outlet temperature (adjustable)
Continuous DHW output
Spec. flow rate
at ΔT = 30 K (to EN 13203)
Connection values
Relative to the max. load
with gas
Natural gas E
Natural gas LL
LPG P
*4
Flue gas parameters
Flue gas category to G 635/G 636
Temperature (at a return temperature of 30 °C)
– at rated heating output
– at partial load
Temperature (at a return temperature of 60 °C)
Mass flow rate
Natural gas
– at rated heating output (DHW heating)
– at partial load
LPG
– at rated heating output (DHW heating)
– at partial load
Available draught
Standard seasonal efficiency [to DIN]
at T /T = 40/30 °C
F R
Max. amount of condensate
to DWA-A 251
Internal diameter of the pipe to the safety valve
Condensate connection (hose nozzle)
Flue gas connection
Ventilation air connection
*4 Calculation values for sizing the flue system to EN 13384.
Flue gas temperatures as actual gross values at 20 °C combustion air temperature.
The flue gas temperature at a return temperature of 30 °C is significant for the sizing of the flue system.
The flue gas temperature at a return temperature of 60 °C is used to determine the application range of flue pipes with maximum permissible
operating temperatures.
VIESMANN
8
(cont.)
Values in ( ) when operating with LPG P
kW 5.2 (8.8) - 26.0
kW 4.7 (8.0) - 23.7
l/h
l
bar
kPa
bar
MPa
Rp
mm
mm
mm
mm
mm
R
G
bar
MPa
bar
MPa
°C
kW
l/min
3
m /h
m 3 /h
kg/h
G
°C
°C
°C
kg/h
kg/h
kg/h
kg/h
Pa
mbar
% up to 98 (H
s
l/h
DN
Ø mm
Ø mm
Ø mm
B2KA
5.2 (8.8) - 35.0
4.7 (8.0) - 31.7
1018
10
0.8
80
3
0.3
¾
360
450
850
1066
–
½
½
10
1
1.0
0.1
30-57 30-57
29.3
13.9
3.23
3.75
2.38
/G G
52 51 52
45
35
70
54.3
8.7
51.5
14.0
250
2.5
) [gross cv] / 109 (H ) [net cv]
i
4.3
15
20-24 20-24
60
100
VITODENS
1361
10
0.8
80
3
0.3
¾
360
450
850
1066
–
½
½
10
1
1.0
0.1
33.5
16.7
3.69
4.30
2.73
/G
51
45
35
70
62.1
8.7
58.9
14.0
250
2.5
4.9
15
60
100