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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

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

Summary of Contents for CIRCO 5

Page 1: ...lers Controlled heat flow by two temperature resistant non return ball valves Safe deaeration by integrated air venting pipe Variable Installation wall mounting or fitted directly to the storage cylinder the reliable pump station for efficient circulation of the heating fluid in combination with SUNGO controls CIRCO 5 Solar Circulation Unit Function Control through flow meter and thermometers Figu...

Page 2: ...d the appli cation of vacuum tube collectors do require special means of overheating protection like the installation of an auxiliary vessel or alternative positioning of the safety components The CIRCO 5 solar circulation unit can be mounted to a wall or directly to the storage cylinder The CIRCO 5 solar circulation unit must not be mounted outside Norms and guidelines EC conformity declaration T...

Page 3: ... the entire system collector area and heightabove 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 m collector volume 0 0 5 1 5 2 0 0 0 1 0 2 0 3 0 m h 3 m s H m econom y 1 0 6 7 5 4 2 1 3 v m axim um Figure 2 Pump characteristics curves CIRCO 5 solar circulation unit Order ...

Page 4: ... numbering fits to numbers in brackets at description of assembling steps items with No 7 8 9 10 12 and 14 are not part of the circulation unit ball valve with integrated thermometer and non return valve air release pipe safety valve compression fitting compression fitting mano meter filler and drain valve circulation pump flow meter with filler and drain valve ...

Page 5: ...com mended to fit in a special cap check valve between flexi ble hose and vessel Connect exhaust pipe 10 to the safety unit and put empty container in place to collect any spills from the pipe The connections to the solar circuit 11 distance of pipes see figure 3 are made by compression fittings 18 or 22 mm figure 6 Cut burr pipes and push into fittings as far as possible then tighten nuts Using t...

Page 6: ...ylinder Connect remaining pipe work In order to prevent forces to the cylinder fixing because of pull from pipe work pipe fixtures should be used at a near wall or at the ceiling The expansion vessel must not be hung from the pump sta tion Apply wall or floor mounting depending on type of vessel Always ensure proper clamping when tightening 32 41 and 46 mm nuts in order to prevent loosening of oth...

Page 7: ...low Stoppers When the circulation pumps are turned of unwanted heat distribution in the solar circuit is prevented by non return ball valves They only open into the flow direction and by pump pressure The ball valve handles can be used to turn them off During operation Filling the system Emptying the system Flow on Ball valve handle vertical Non return valve in operation Flow off Ball valve handle...

Page 8: ...sion vessel kit Expansion vessel for the CIRCO 5 solar circulation unit operating pressure max 10 bar stainless steel connection hose connection female with gasket 12 l volume incl wall mounting bracket pre pressurised 1 5 bar 18 l volume incl wall mounting bracket pre pressurised 1 5 bar 24 l volume incl wall mounting bracket pre pressurised 1 5 bar 35 l volume with brackets for wall and floor fi...

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