Viessmann Vitodens 200 Technical Manual page 13

Vitodens 300, 4.2 kW to 13 kW
197
KAS
360
Key to symbols
ATR Drain outlet connection
E Drain
GA Gas connection
HR Heating return
HV Heating flow
KAS Flue outlet
OKFF Top edge finished floor
SIV Safety valve
SRL Cylinder return
SVL Cylinder flow
A Compulsory in conjunction with DHW cylinders installed below the boiler, otherwise this is a recommendation only.
B Installation on finished walls
C Installation on unfinished walls
VITODENS
225
B
SRL
SVL SIV
HV GA HR
E
95
162
225
287
355
450
OKFF
Note
For connection dimensions for
installation on finished walls, see page 64.
For connection dimensions for
installation on unfinished walls,
see page 65.
1.2 Specification
Vitodens 300
225
C
SRL
SVL SIV
ATR
HV GA HR
E
50
95
162
225
287
355
450
OKFF
HV SVL GA SRL HR
300
1
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