Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 83

Overview of electrical components
Indoor unit:
■
See page 38 onwards.
■ Outdoor unit:
See page 47 onwards.
Indoor unit: Opening the programming unit
3.
1.
Fig. 69
Removing the cover from the programming unit if necessary
5.
Fig. 70
2x
2.
4.
4x
Maintenance
83