Viessmann VITODENS 300-W Technical Manual page 24

Vitodens 300-W
Finished wall
HV SVL GA SRL HR
Vitodens 300-W, 4.0 to 35 kW
168
KAS
3
380
A Compulsory in conjunction with DHW cylinders below the
boiler. Otherwise recommendation only.
B Installation on finished walls
C Installation on unfinished walls
ADG Expansion vessel connection G ¾
ATR Drain outlet connection
E Drain
Note
For connection dimensions for installation on finished walls with pre-
plumbing jig, see page 54.
For connection dimensions for installation on unfinished walls with pre-
plumbing jig, see page 57.
For connection dimensions for installation with a mounting frame, see
page 58.
Note
Prepare all connections on site before commencing the boiler instal-
lation.
Lay all required supply cables on site and route them into the boiler at
the point indicated (see page 52).
VIESMANN
24
(cont.)
240
ADG
B
SVL
SRL
HV GA HR
177
240
302
370
480
OKFF
ADG
C
E
110
GA Gas connection
HR Heating return
HV Heating flow
KAS Boiler flue connection
OKFF Top edge finished floor
SRL Cylinder return
SVL Cylinder flow
Finished wall
HV SVL/ GA SRL/
WW KW
240
SVL
SRL E
HV GA HR
ATR
65
110
177
240
302
370
480
OKFF
HR
VITODENS