Viessmann Vitodens 200 Technical Manual page 14

1.2 Specification
Vitodens 300
300
Vitodens 300, 6.6 kW to 35 kW
158
KAS
1
380
Key to symbols
ADG Expansion vessel G ¾"
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
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
14
240
ADG
B
SVL/
WW
SRL/
KW
SIV
HV GA HR
E
110
177
240
302
370
480
OKFF
Gas fired combi boilers only:
KW Cold water
WW DHW
Gas fired boilers only:
SRL Cylinder return
SVL Cylinder flow
240
ADG
C
SVL/
WW
SRL/
KW
SIV
HV GA HR ATR
E
65
110
177
240
302
370
480
OKFF
Prefabricated wall
Note
For connection dimensions for
installation on finished walls, see page 64.
For connection dimensions for
installation on unfinished walls,
see page 65.
For connection dimensions for
installation with a mounting frame,
see page 66.
VITODENS