Viessmann VITODENS 111-W Installation And Service Instructions Manual page 11

Fitting the boiler and making connections
Making the connections on the water side
For fittings on the heating water
side and DHW side, see separate
installation instructions.
!
Please note
To prevent equipment damage,
install all pipework free of load
and torque stresses.
A B C
¨
A Heating flow
B Heating return
C Gas connection
D Cold water
E DHW
DHW connection
Permiss. operating pressure, cylinder:
10 bar.
A safety valve and pressure reducer
manifold is provided as standard and has
to be fitted into the cold water supply.
The blow off pipe of the safety valve can
be routed into the household drain pipe.
No flow limiter is fitted into the cold water
supply.
D E
Installation sequence
(cont.)
11