Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 16

Preparing for installation
Overview of possible system schemes
System diagram (ID 7000)
0
Heating cir-
cuit
A1 –
M2 –
M3 –
DHW cylin- X
der
Heating –
water buffer
cylinder
External –
heat source
Cooling
mode (only
one "cool-
ing circuit"
possible)
Heating cir-
cuit
A1 –
M2 –
M3 –
Separate
0
cooling cir-
cuit
Swimming
0
pool
Solar ther-
0
mal system
(only with
Vitosolic
100/200)
X Requirement
0 Option
Only in conjunction with a heating water buffer cylinder.
*1
16
1 2 3
X X –
– – X
– – –
– X –
X
0 0
*1 *1
0
0 0
–
0 0
– –
0
– – –
0 0 0
0 0 0
– –
0
(cont.)
4 5 6 7
– X X –
X X X X
– – – X
X – X –
X X X X
0 0 0 0
– –
0 0
0 0 0 0
– – –
0
0 0 0 0
0 0 0 0
– –
0 0
8 9 10 11
– X X –
X X X –
X X X –
X — X –
X X X –
–
0 0 0
– –
0 0
–
0 0 0
–
0 0 0
–
0 0 0
–
0 0 0
– –
0 0