Fitting The Thermal Insulation - Viessmann Vitocrossal Installation Instructions For Contractors

Connections on the heating water side
!
Please note
Unsuitable water quality can damage the boiler
body.
Only fill the boiler with water that complies with
the "Water quality requirements" (see service
instructions).

Fitting the thermal insulation

3.
12x
4.
Fig. 10
Black side outwards
A
Note
Attach 4 spring hooks under the thermal insulation
jacket. Use 8 spring hooks each for the front and rear
thermal insulation mat. If required, secure spring hooks
to the boiler floor.
14
(cont.)
1.
A
3. Connect the thermal insulation mat with an over-
lap.
5.
2.