Instructions on commissioning, maintenance, and troubleshooting for auroSTOR 0020111119_02
11
4
Description of the components
4.1
auroSTOR solar cylinder
1
2
3
4
5
1
2
3
4
5
6
7
9
8
10
13
11
12
16
17
3
19
23
24
25
26
15
22
20
21
18
14
Fig. 4.1 auroSTOR solar cylinder function elements
Key
1 Hot water draw off
2 Expansion relief valve (6.0 bar)
3 Pressure reducing valve (3.5 bar) with line strainer
4 Cold water inlet
5 Pressure-controlled cold water inlet
6 Connection for hot water expansion vessel
7 Cylinder
connection
8 Hot
water
expansion vessel
9 Tundish
10 Cylinder drain valve
11 Solar
return
12 Solar yield temperature sensor (Ertrag)
13 Cold water inlet
14 Solar circuit thermal cut-out (TCO), set to 80ºC, to be con-
nected with the solar pump in order to isolate this heat source
if there is a fault in the solar control.
15 Solar circuit cylinder dry pocket (SP 2)
16 Solar flow
17 2-pole isolating switch for electric immersion heater
18 Electric immersion heater with thermostat and thermal cut-out
19 Return (gas-fired wall-hung boiler)
20 Primary heating circuit cylinder dry pocket (SP 1)
21 Primary heating circuit thermal cut-out, set to 80ºC, to be con-
nected to the two port motorised valve in order to isolate the
primary heat source if a fault occurs.
22 Cylinder thermostat (20 °C to 65 °C)
23 Two port motorised valve
24 Flow line (gas-fired wall-hung boiler)
25 Secondary return
26 Temperature and pressure relief valve (90 °C, 7 bar)
Description of the components 4
