Viessmann Vitocrossal 300 Installation Instructions For Contractors page 9

Siting and levelling the boiler
3.
Fig. 6
1. Insert adjusting screws
boiler support) into the base rails from the top.
2. Undo the timbers from the boiler base.
Note
Remove transport protectors.
3. Level the boiler using the adjusting screws.
Note
We recommend installing the boiler on adjustable
anti-vibration feet (see page 6) or anti-vibration
C
boiler supports /
D E
(cont.)
(inside the bag on the
F
(see page 6).
3.
2.
F
Adjustable anti-vibration feet
Insert adjusting feet into the base rails from below.
Anti-vibration boiler supports
Any unevenness in the floor should be max. 1 mm, to
ensure the spring elements are evenly loaded.
Position the boiler supports underneath the boiler. For
this, locate them centrally underneath the base rails.
When setting the boiler down less than square on, a
boiler support can temporarily be overloaded. This can
be prevented by laying timbers (
front, centre and back of each boiler support.
35 mm) under the
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9