Viessmann Vitodens 300-W Technical Manual page 18

Vitodens 222-W
Gas boiler, series B and C
Category II
2N3P
Type
Rated heating output range (details to EN 677)
T /T = 50/30 °C
F R
T /T = 80/60 °C
F R
*2*4
Flue gas parameters
Flue gas category to G 635/G 636
Temperature (at a return temperature of 30 °C)
– At rated heating output
2
– 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
Max. amount of condensate
To DWA-A 251
Internal diameter of the pipe to the safety valve
Condensate connection (hose nozzle)
Flue outlet
Ventilation air connection
Standard seasonal efficiency [to DIN]
At T /T = 40/30 °C
F R
Energy efficiency class
– Heating
– DHW heating, draw-off profile XL
Calculation values for sizing the flue system to EN 13384.
*2
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 permissi-
ble operating temperatures.
*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 permissi-
ble operating temperatures.
VIESMANN
18
(cont.)
Values in ( ) when operating with LPG P
kW 1.9 - 13.0
kW 1.7 - 12.1
G /G
52 51
°C 45
°C 35
°C 68
kg/h 31.8
kg/h 5.5
kg/h 30.2
kg/h 7.6
Pa 250
mbar 2.5
l/h 2.3
DN 15
Ø mm 20-24
Ø mm 60
Ø mm 100
%
A
A
B2LB
1.9 - 19.0 2.6 - 26.0
1.7 - 17.6 2.4 - 24.1
G /G G /G
52 51 52 51
45 45
35 35
68 70
31.8 54.3
5.5 8.7
30.2 51.5
7.6 14.0
250 250
2.5 2.5
2.5 4.3
15 15
20-24 20-24
60 60
100 100
up to 98 (H ) [gross cv]
s
A A
A A
1.8 (3.5) - 35.0
1.6 (3.2) - 32.5
G /G
52 51
45
35
70
62.1
8.7
58.9
14.0
250
2.5
4.9
15
20-24
60
100
A
A
VITODENS