Viessmann VITOLADENS 300-W Technical Manual page 43

Design information
(cont.)
Pre-installation for installing the Vitoladens 300-W with a mounting frame – installation on finished walls
A Mounting frame
B Top edge of the boiler
C Area for power supply cables.
Allow all cables/leads to protrude approx. 800 mm from the
wall.
D Compulsory in conjunction with DHW cylinders, below. Other-
wise, recommendation only.
Including a diaphragm expansion vessel (18 litre capacity), fittings and
fixing elements.
All fittings are located inside the boiler casing.
Note
Minimum clearance between the mounting frame and the ceiling for
the removal of the expansion vessel: 400 mm
The mounting frame must not be plastered over.
VITOLADENS 300-W/VITOLADENS 333-F
A B
C
E
HR
SRL
SVL
HV
OKFF
E
HR
HV
OKFF Top edge, finished floor
SRL
SVL
Drain
Heating return G ¾
Heating flow G ¾
Cylinder return G ¾
Cylinder flow G ¾
5
VIESMANN
43