EN-CIRCO-5-MA-0701-11217300
3
2. Technical Information
List of parts supplied
The CIRCO 5 solar circulation unit is supplied pre-assem-
bled.
SUNGO control and CIRCO expansion kit are not part of
the unit.
You can find additional accessories on the last page.
Maximum number of collectors to be installed
Coll.-
Type
Serial-/Parallel connections *
Serial connections
18 Ø
22 Ø
28 Ø
18 Ø
22 Ø
28 Ø
EURO
2 x 3
3 x 3
4 x 3
4
4
4
Parallel connections
LBM 67
4
5
6
1
2
2
LBM 100
2
3
4
1
2
2
* Number of fields each with 3 collectors connected in series
Table 1 Maximum number of collectors that can be installed depend-
ing on the collector type, way of connection and size of piping. Single
length of solar circuit up to 20m; heat carrier: frost protection/ water 40/
60 % per. Volume, Volume flow = 35l/m²/hConnection and connection
hoses at collectors are taken into account.
Size of expansion vessel
Fluid
litre
Coll.
area
m²
Vessel volume in litres
for system height in metres
2,5
5
7,5
10
12,5
15
18
5
12
12
12
12
18
18
20
7,5
18
18
18
18
18
24
23
10
24
24
24
24
24
24
24
12,5
24
24
24
24
24
24
27
15
35
35
35
35
35
35
≥
32
20
35
35
35
50
50
50
Table 2 Size of expansion vessel depending on the fluid content of the
entire system, collector area and height above vessel (distance vessel to
upper edge of collectors). Dimensioning scenario: system exposed to
full sun light but inactive. These values are only valid up to about 0.5
litres per m² collector volume.
0
0,5
1,5
2,0
0
0
1,0
2,0
3,0
[m /h]
3
[m/s]
H
[m]
economy
1,0
6
7
5
4
2
1
3
v
maximum
Figure 2 Pump characteristics curves
CIRCO 5 solar circulation unit
Order No.
150 201 14
Insulation
EPP (
λ
= 0.039 W/mK),
in three parts with snap-lock
Mounting plate
Steel, galvanised
Max. operating pressure
6 bar
Max. operating temperature
120 °C
Circulation pump
ST 25/6 (230V, 50 Hz)
Wattage
3 pump levels, 44/62/81 Watt
Max. pumping height
600 mbar
Max. pumping volume
3.5 m³/h
Controller
Suitable for SUNGO S / SL /SXL
Non-return valves
2 x Heat-resistant metal
Temperature indicator
2 Integrated Thermometers
Flow meter
Flow meter resistant to dirt
clotting
Safety unit
Safety valve 6 bar DN 15 in
accordance with EN 12977,
manometer
Filler units
2 Filler and drain valves
with caps
Expansion vessel connection
¾" male
Security valve exhaust
connection
¾" female
Solar circuit connections
Compression Fittings
18 and 22 mm
Centres distance of solar circuit
connections
125 mm
Installation options
Suitable for wall and cylinder
installation (see accessories)
Dimensions (H x W x D)
420 x 260 x 190 mm
Weight
6.7 kg
Figure 3 Front and side view, measurements in mm
420
190
184
60
125
