Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 58

Installation sequence
Closing the heat pump
(cont.)
Fitting the front panels of the indoor unit
1.
2.
4.
3.
5.
Fig. 56
4. Ensure that the locking screws are tightened
before operating.
Fitting the side cover for the outdoor unit
In reverse order to "Opening the outdoor unit wiring
chamber": See page 19.
58