Viessmann VITODENS 242-F Technical Manual page 7

Vitodens 222-F, type B2TB
Gas boiler, type B and C, category II
Rated heating output range (to EN 15502-1)
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)
Mass flow rate
– For natural gas
– At rated heating output (DHW heating)
– At partial load
– For LPG
– At rated heating output (DHW heating)
– At partial load
Available draught
Max. amount of condensate
To DWA-A 251
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
*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 permissi-
ble operating temperatures.
VITODENS
(cont.)
2N3P
kW
kW
°C
°C
°C
kg/h
kg/h
kg/h
kg/h
Pa
mbar
l/h
Ø mm
Ø mm
Ø mm
%
Values in ( ) when operating with LPG P
1.9 - 13.0 1.9 - 19.0
1.7 - 12.1 1.7 - 17.6
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
2.3 2.5
20-24 20-24
60 60
100 100
up to 98 (H ) [gross cv]
s
A A
A A
2.6 - 26.0 1.8 (3.5) - 35.0
2.4 - 24.1 1.6 (3.2) - 32.5
G /G G /G
52 51 52 51
45 45
35 35
68 70
54.3 62.1
8.7 8.7
51.5 58.9
14.0 14.0
250 250
2.5 2.5
4.3 4.9
20-24 20-24
60 60
100 100
A A
A A
VIESMANN
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