Viessmann VITOCAL 222-S Installation And Service Instructions Manual page 10

Preparing for installation
Overview of possible system schemes
System schemes
Component
Heating circuit
A1/HC1
M2/HC2
DHW cylinder
Heating water buffer cylinder
Instantaneous heating water heater
Swimming pool
Cooling
A1/HC1
M2/HC2
SKK
Electricity meter 1-phase/3-phase
Vitovent
X Component selected.
0 Component may be added.
10
System scheme
0 1
— X
— —
X —
—
0
X X
—
0
—
0
— —
0 0
0 0
0 0
(cont.)
2 3 4
X — —
— X X
X — X
X X
0
X X X
0 0 0
— —
0
—
0 0
0 0 0
0 0 0
0 0 0
5 6 11
X X —
X X —
— X —
X X —
X X —
—
0 0
—
0 0
—
0 0
—
0 0
0 0 0
0 0 0