Installation In Unfinished Buildings - Viessmann Vitodens 100 WB1 Technical Data Manual

Pre-installation in unfinished buildings for mounting the Vitodens 100 directly on pre-finished walls
Accessories required for installation
without a domestic hot water cylinder
Mounting aid
with fastenings, fittings and b" dia. gas
cock with a built-in thermal safety shut-
off valve
The drawing shows the connections required for the gas combination boiler
Legend
ATR Drain outlet connection 1"
E Drain
GA Gas connection b"
HR Heating return c"
HV Heating flow c"
OKFF Finished floor level
Additional accessories required for con
necting a DHW cylinder
Connection kit for DHW cylinder
A B C
ATR
E
HR
SRL/KW
GA
SVL/WW
HV
OKFF
For gas combination boiler only
KW Cold water b"
WW Hot water b"
For gas central heating boiler only
SRL Cylinder return c"
SVL Cylinder flow c"
*1
Obligatory in conjunction with DHW
cylinder positioned under the boiler,
recommended in other cases.

Installation in unfinished buildings

(on pre-finished walls)
Please note:
Keep a clearance of 700 mm in front of
the Vitodens and the DHW cylinder for
servicing work.
No clearance is required for servicing
work on the left or right-hand side of the
Vitodens.
Preassembly unit
The reusable preassembly unit can be
used for preassembling the piping required
on site without mounting the fittings.
A Mounting aid
B Vitodens
C Entry point for electrical cables.
Leave cables projecting approx.
1200 mm from the wall.
7