Safety Equipment - Viessmann Vitosol
100 Technical Manual

3.3 Safety equipment

3.3 Safety equipment
G
F
h Static head
RL Return
VL Flow
A Collector
B Safety valve
C Solar Divicon
D Pre−cooling vessel (see page 55)
E Diaphragm expansion vessel
F Dual mode DHW cylinder
G High limit safety cut−out (see page 57)
54
T
KW
T
A
B
C
D
VL RL
E
The solar heating system must be
protected in accordance with DIN EN
12975/12976 or in accordance with local
regulations. The collector circuit must be
protected in such a way that at the
highest possible collector temperature
(= shutdown temperature) no process
medium can escape from the safety
valve.
This is achieved through the appropriate
sizing of the expansion vessel and
matching of the system pressure.
VITOSOL