Viessmann VITODENS 300-W Technical Manual page 16

Vitodens 222-W
Gas boiler, series B and C,
Category II
2N3P
Rated heating output range (to EN 677)
T /T = 50/30 °C
F R
T /T = 80/60 °C
F R
*2
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)
2
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
*2 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
16
(cont.)
kW
kW
°C
°C
°C
kg/h
kg/h
kg/h
kg/h
Pa
mbar
%
l/h
DN
Ø mm
Ø mm
Ø mm
Values in ( ) when operating with LPG P
3.2 (4.8) - 13.0 3.2 (4.8) - 19.0
2.9 (4.3) - 11.8 2.9 (4.3) - 17.2
G /G G /G
52 51 52 51
45 45
35 35
68 68
31.8 31.8
5.5 5.5
30.2 30.2
7.6 7.6
250 250
2.5 2.5
up to 98 (H ) [gross cv] / 109 (H
s
2.3 2.5
15 15
20-24 20-24
60 60
100 100
5.2 (8.8) - 26.0 5.2 (8.8) - 35.0
4.7 (8.0) - 23.7 4.7 (8.0) - 31.7
G /G G /G
52 51 52 51
45 45
35 35
70 70
54.3 62.1
8.7 8.7
51.5 58.9
14.0 14.0
250 250
2.5 2.5
) [net cv]
i
4.3 4.9
15 15
20-24 20-24
60 60
100 100
VITODENS