Viessmann VITODENS 242-F Technical Manual page 7

Vitodens 222-F, type FS2B
Gas boiler, types B and C, category II
Rated output range (details to DIN EN 677)
T /T = 50/30 °C
V R
T /T = 80/60 °C
V R
*3
Flue gas parameters
Flue gas value group to G 635/G 636
Temperature (at 30 °C return temperature)
– at rated output
– at partial load
Temperature (at 60 °C return temperature)
Mass flow rate
– for natural gas
– at rated output
– at partial load
– for LPG
– at rated output
– at partial load
Available draught
Standard efficiency at
T /T = 40/30 °C
V R
Average condensate volume
for natural gas and
T /T = 50/30 °C
V R
Condensate connection (hose nozzle)
Flue gas connection
Ventilation air connection
*3 Calculation values for sizing the flue system to DIN EN 13384.
Flue gas temperatures measured as 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.
VITODENS
(cont.)
2N3P
kW
kW
°C
°C
°C
kg/h
kg/h
kg/h
kg/h
Pa
mbar
%
litres/day
Ø mm
Ø mm
Ø mm
4.8-19.0 6.5-26.0
4.3-17.2 5.9-23.7
G /G G /G
52 51 52 51
45 45
35 35
68 68
33.3 47.3
8.4 11.8
32.5 46.4
8.2 11.5
250 250
2.5 2.5
up to 98 (H )/109 (H )
s i
9-11 10-12
20-24 20-24
60 60
100 100
VIESMANN
8.8-35.0
1
8.0-31.7
G /G
52 51
45
35
70
70.0
15.7
68.2
15.4
250
2.5
11-13
20-24
60
100
7