Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 14

Preparing for installation
System example, ID: 4605418_1202_02
Pos. Designation
Heating circuit without mixer A1/HC1
oP Radiator heating circuit
oQ Vitotrol remote control
oZ Heating circuit pump
Electrical installation scheme
For an overview of the electrical connec-
tions and more detailed information
regarding the PCBs, see from
page 49 and the service instructions
for the Vitotronic 200 heat pump control
unit.
14
(cont.)
For information regarding the power sup-
ply, see page 61.