Vaillant Solar hot water System Manual page 6

3 System description
Fig. 3.1 System for solar heating of drinking water
Key
1 Boiler
2 auroSTOR solar cylinder
3 230 V motorised 2 port valve (supplied together with the solar
cylinder)
4 Immersion heater
5 230 V motorised 2 port valve (supplied together with the
boiler)
6 auroTHERM collector
7 Solar pump unit
8 Protection vessel (optional)
6
C
1
A B
5
M
9 Solar expansion vessel
10 Automatic air separator system
11 Drinking water expansion vessel
A Boiler flow
B Boiler return
C Solar circuit flow
D Solar circuit return
6
7
8
9
D
DHW
2
4
3 M
11
10
Manual - Solar hot water systems