Technical data

Manual - Solar hot water systems26
Approximate cylinder heat up time 15 C to 45 C (minutes)
Reheat time for 70 % of cylinder contents (minutes)
10
15
20
25
30
20
25
30
35
40
45
12
Heat input to cylinder (kW)
15 20 25 30 3835
VIH S GB 200 S
VIH S GB 250 S
VIH S GB 300 S
Fig. 5.4 auroSTOR cylinder heat-up times (boiler part)
40
40
8 bar*
4 bar*
3 bar*
2 bar*
1 bar*
30
30
20
20
Flow available (litres/min) at entry to system
Flow out (litres/min) of the system
10
10
0
Fig. 5.5 auroSTOR hot water flow rates at 60 °C
* Static operating pressure of the cold water supply
The displayed flow rates apply to installations in which
the cold water supply is of appropriate dynamic
pressure.
Please contact Vaillant Ltd if the static water pressure is
below 1 bar.
8 bar*
4 bar*
3 bar*
2 bar*
1 bar*
Flow available (litres/min) at entry to system
Flow out (litres/min) of the system
40
40
30
30
20
20
10
10
0
Mixed water of 40 °C, mixed from
60 % hot water of 60 °C and
40 % cold water of 10 °C
Fig. 5.6 auroSTOR mixed water flow rates
5 Installation