26
Instructions on commissioning, maintenance, and troubleshooting for auroSTOR 0020111119_02
Nominal flow rate and pipe diameter in the solar circuit
Flat collectors auroTHERM plus VFK 150 H/V,
auroTHERM VFK 145 H/V
Nominal flow rate
**
Recommended diameter for
copper piping and a total pipe
length of:
Quan-
tity
Net area
Configuration
Row x collector quantity for connection:
20 m
50 m
Qty.
in m
2
On one side
Opposite sides
l/h
l/min
1
2,35
1 x 1
1 x 1
180
3
15 x 1
15 x 1
2
4,7
1 x 2
1 x 2
180
3
15 x 1
15 x 1
3
7,05
1 x 3
1 x 3
180
3
15 x 1
15 x 1
4
9,4
1 x 4
1 x 4 / 2 x 2
180
3
15 x 1
18 x 1
5
11,75
1 x 5
1 x 5
180
3
18 x 1
18 x 1
6
14,1
3 x 2 * / 2 x 3 *
1 x 6 / 3 x 2 * / 2 x 3 *
212
3,6
18 x 1
18 x 1
7
16,45
1 x 7
247
4,2
18 x 1
18 x 1
8
18,8
2 x 4 * / 4 x 2 *
2 x 4 / 4 x 2 / 1 x 8
282
4,7
18 x 1
22 x 1
9
21,15
1 x 9
318
5,3
22 x 1
22 x 1
10
23,5
2 x 5 * / 5 x 2 *
1 x 10 / 2 x 5 / 5 x 2
353
5,9
22 x 1
22 x 1
11
25,8
1 x 11
387
6,5
22 x 1
22 x 1
12
28,2
1 x 12 / 2 x 6 / 3 x 4 / 4 x 3
423
7,1
22 x 1
22 x 1
20
47
4 x 5 / 5 x 4
705
11,8
22 x 1
28 x 1.5
24
56,4
2 x 12 / 4 x 6 / 6 x 4 etc.
846
14,1
28 x 1.5
28 x 1.5
32
75,2
4 x 8 etc.
1128
18,8
28 x 1.5
28 x 1.5
*
Only with parallel array connection
**
At least 15 l/m
2
h in collector array or 3 l/min. in the solar circuit; in the case of larger systems,
the flow rate in the collector array must be below 30 l/m
2
h.
Tab. 6.1 Nominal flow rate in relation to collector quantity,
pipe diameter, and pipe length
Nominal flow rate and pipe diameter in the solar circuit
Parallel collector
arrays
Tube collectors
Net area
in m
2
VTK 1140/2
or 570/2
and 1140/2
in series
Recommended nominal
flow rate
Minimum diameter for
copper piping and a total
pipe length of:
VTK 570/2
VTK 1140/2
Qty.
in l/h
in l/min
20 m
50 m
1 collector array
2
-
2
2 x 1
180
3
12 x 1
15 x 1
2
-
2
3 x 1
180
3
12 x 1
15 x 1
-
2
4
1 x 2
180
3
12 x 1
15 x 1
1
2
5
1x (1 + 2)
180
3
12 x 1
15 x 1
-
3
6
1 x 3
180
3
12 x 1
15 x 1
1
3
7
1 x (1 + 3)
210
3,5
15 x 1
15 x 1
-
4
8
1 x 4
210
3,5
15 x 1
15 x 1
1
4
9
1 x (1 + 4)
210
3,5
15 x 1
15 x 1
-
5
10
1 x 5
210
3,5
15 x 1
15 x 1
1
5
11
1 x (1 + 5)
240
4
18 x 1
18 x 1
-
6
12
1 x 6
240
4
18 x 1
18 x 1
1
6
13
1 x (1 + 6)
240
4
18 x 1
18 x 1
-
7
14
1 x 7
240
4
18 x 1
18 x 1
2 parallel collec-
tor arrays
2
6
14
2 x (1 + 3)
300
5
18 x 1
18 x 1
-
8
16
2 x 4
300
5
18 x 1
18 x 1
2
8
18
2 x (1 + 4)
360
6
18 x 1
18 x 1
-
10
20
2 x 5
360
6
18 x 1
18 x 1
2
10
22
2 x (1 + 5)
420
7
18 x 1
22 x 1
-
12
24
2 x 6
480
8
22 x 1
22 x 1
2
12
26
2 x (1 + 6)
480
8
22 x 1
22 x 1
-
14
28
2 x 7
480
8
22 x 1
22 x 1
Tab. 6.2 Design of pipe diameter and recommended nominal
flow rate in relation to collector configuration for
auroTHERM exclusive VTK 570/2 tube collectors
6 Installation
