Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 19

Preparing for installation
System version 3, ID: 4605498_1201_01
System with floorstanding oil/gas boiler, heating water buffer cylinder and
DHW cylinder
Hydraulic installation scheme
21
13
--11/5--
--2B/B3--
5
20
KW
18
--17/DE1-- --2A/X5--
(cont.)
8
16
--2A/QX2--
15
12
--2/QX3--
10
17 2A
11
Preparing for installation
--2B/B10--
3A
4
3B
9
30
1
2B 2
41
40
42 --41/2--
--41/20--
43.
--41/52--
44
6
--2B/B4--
7
--2B/B41--
19