Viessmann VITODENS 242-F Technical Manual page 30

Vitodens 333-F, type FR3B
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
*12
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
4
*12 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.
VIESMANN
30
(cont.)
2N3P
kW 3.8-19.0
kW 3.5-17.2
G
52
°C
°C
°C
kg/h
kg/h
kg/h
kg/h
Pa
mbar
% up to 98 (H
litres/day 10-12
Ø mm 20-24
Ø mm
Ø mm
5.2-26.0
4.7-23.7
/G G /G
51 52 51
45 45
35 35
68 70
31.8 43.9
6.4 8.7
30.6 42.3
6.2 8.4
100 100
1.0 1.0
)/109 (H )
s i
11-13
20-24
60 60
100 100
VITODENS