en
16
HR i
: A1002237 - 661Y1300 • B
EN
NL
ES
IT
DE
PL
RU
FR
EN
INSTALLATION
CONNECTION TO THE DHW CIRCUIT
Legend
1. Filling valve
2. Pressure reducing valve (set at 4.5 bar)
3. Check valve
4. Expansion vessel
5. Safety valve (set at 7 bar)
6. Drain valve
7. Drawing-off tap
8. Pressure gauge
9. Grounding
10. Stop valve
11. Auxiliary DHW loop circulation pump
12. Thermostatic mixing valve
If there is a risk of low pressure in the hot water circuit (installation of the tank on
the roof of a building), it is essential to install a vacuum breaker device onto the cold
water supply.
1
2
3
10
10
10
4
5 8
6
7
11
9
Cold water
Hot water
12
3
