Hydraulic Connections - Viessmann Vitocal 350-G Installation And Service Instructions Manual

Installation sequence

Hydraulic connections

Overview of connections
Connecting the primary circuit
!
Please note
The components used must be
resistant to the heat transfer
medium.
Never use zinc-plated/galvan-
ised pipes.
62
2 V
< 4
0 V
2 3
0 V
4 0
1. Equip the primary circuit with an
expansion vessel and safety valve (in
accordance with DIN 4757).