Viessmann VITODENS 200-W Technical Manual page 25

Vitodens 300-W
(cont.)
Gas boiler, types B and C, category II
Rated output range (details to EN 677)
T /T = 50/30 °C
V R
T /T = 80/60 °C
V R
Internal diameter of pipe to expansion vessel
Condensate connection (hose nozzle)
Flue gas connection
Ventilation air connection
Vitodens 300-W, 3.8 to 19 kW
215
KAS
360
A Compulsory in conjunction with DHW cylinders, below. Other-
wise, recommendation only.
B Installation on finished walls
C Installation on unfinished walls
ATR Drain outlet connection
E Drain
GA Gas connection
Note
For connection dimensions for installation on finished walls with instal-
lation aid, see page 53.
For connection dimensions for installation on unfinished walls with
installation aid, see page 56.
Note
Route all required supply cables on site and lead them into the boiler
at the point indicated (see page 51).
VITODENS
2N3P
kW
kW
DN
Ø mm
Ø mm
Ø mm
225
B
SRL
SVL
SIV
HV GA HR
E
95
162
225
287
355
450
OKFF
HR
HV
KAS
OKFF Top edge finished floor
SIV
SRL
SVL
Gas boiler
3.8-13.0 3.8-19.0
3.5-11.8 3.5-17.2
– –
20-24 20-24
60 60
100 100
225
C
SRL
SVL SIV
HV GA HR
162
225
287
355
450
OKFF
Heating return
Heating flow
Boiler flue connection
Safety valve
Cylinder return
Cylinder flow
Finished wall
HV SVL GA SRL HR
5.2-26.0 7.0-35.0
4.7-23.7 6.4-32.0
20 20
20-24 20-24
60 60
100 100
3
ATR
E
50
95
VIESMANN
25