Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 31

Aligning the appliance
Fig. 27
Type AWBT(-M)-E-AC only: Connecting the cooling circuit
For area cooling systems (e.g. underfloor heating cir-
cuit, chilled ceiling), a contact humidistat (accessories)
is required.
1.
SW17
2.
Installation sequence
31