Unical SOLECO 160 2.5, SOLECO 220 2.5, SOLECO 200, SOLECO 300 Installation, Use And Servicing Instructions

SOLECO
160-220 2.5
200-300

00335385 - 1st edition - 12/14

INSTALLATION,
USE AND SERVICING
INSTRUCTIONS

EN

Information for the Installer

Technical data

1. Before installation make sure that there is available the right space for the correct

installation of the system. The system must always face the South for North
hemisphere or North for South hemisphere. The system must be connected with
tubes with nominal diameter from 18-22mm.

2. The system is containing the following components:

2.1 The solar tank

2.2 The solar collector (s)

2.3 The support base and the installation kit. Detailed information about them is

indicated above.

3. The maximum operation pressure is at 6 bars. In case of higher pressure in the main

it is suggested to use pressure reducer. The closed loop’s maximum operation
pressure is at 3 bars.

4. The maximum temperature of the system is 94C.

5. The system is protected against corrosion, by using 2 Mg anodes. The tank internally

is protected by enamel layer.

6. The used heat transfer fluid is Glycol.

Packaging and transportation

1. The system is packed in a way to ensure the safe transport of its components. For

the tank, there are indication arrows to show the up or down part of the tank in
order to avoid any possible damage. For the collector, there are indication arrows in
order to avoid the damage of the glass.

2. The products must be stored in a protected area against weather conditions. If

necessary to store them outdoors, the packaging of the product must be removed.

Installation guidelines

1. Before install the system make sure that the chosen installation surface can resist

the weight of the system. It must be given a written confirmation by the engineer of
the building that the installation area is proper for this use.

2. In order to make the maintenance of the system easier, the system must be installed

at least 1 m from the walls or the end of the roof.

3. In order to avoid humidity problems or water ingress on the roof, the pipes which

are entering the roof must be very well sealed. The building engineer should provide
you the precise guidelines, depending in the kind of roof construction.

4. All the connection pipes must be very well insulated to avoid freezing or destruction

of them due the UV radiation. Depending on the local weather conditions, it must be
chosen the correct insulation material. For more information contact to the local
dealer.

2

Support base

PERCENTAGE %

TEMPERATURE ºC 5 -2

10

-4

15

-5

25

-10

30

-14

35

-17

1. The roof structure must be able to take the wind and snow loads (Note: 1m2 powder

snow ~ 60kg / 1m2 wet snow ~ 200kg).

2. It must be taken under consideration the local conditions regarding snow and wind

loads. Please contact to the local dealer for more information.

Safety equipment

1. On the system exists the safety valve of the closed loop, which is set at 3 bars. This

safety valve must be placed on the top of the tank in one of the 1/2 ‘’ open inlets.
There is also a temperature – pressure valve for the sanitary water. This valve is set
at 94C maximum temperature and 6 bars maximum pressure. This valve must be
placed on the top of the tank on ¾’’ opening.

2. Both above mentioned valves must be connected with the tubes to the disposal

system of the building. In this way will be avoided injuries during the function of the
system.

Starting up the system

1. Cover the collector with a non transparent material. This must be removed after

completing the installation.

2. In order to start filling in the system you have to follow the following guidelines:

1.1 First the tank must be filled in with water from the main supply of the building.

1.2 Secondly it must be filled in the closed loop with the mixture of glycol – water.

1.3 Place all the fittings and make sure that there is no leakage.

3. The system can produce hot water higher than 60C. For this reason it is highly

recommended the use of mixture valve.

Freezing protection

1. The thermal medium should be used for the solar applications is PROPYLENE GLYCOL

1,2 . This thermal fluid is also used to protect the system against freezing.

The thermal fluid must be mixed with water in a percentage that is necessary to
protect the system.

3

40

-22

50

-32

60

-49

80

-57

ATTENTION: The collectors should remain covered before fill in the thermal fluid.

Troubleshooting

If a reduced efficiency of the solar system is noticed during a sunny day, then check the
following:

 The installation is correctly orientated.
 Obstacles do not shade the collectors.
 The collector’s glass surface is clean from opaque substances.
 The collectors are placed correctly on the ground.
 The closed circuit does not have any leakage.
 The liquid’s level in the closed circuit is not low.
 The connections of the closed circuit have to be properly insulated.

Information for the end user

Before starting the system

1. Before starting the system make sure that all the valves and safety devises are

working properly.

2. Make sure that the system is filled in with water.

3. Make sure that the system is filled in with glycol.

4. In case of any failure please contact to the local dealer.

Regular operation of the safety valves

1. The system is equipped with a 3 bars safety valve for the protection of the closed

loop. This valve should be remained open when the internal pressure of the closed
loop is higher than 3 bars.

2. The system is equipped with a temperature-pressure valve. When the temperature

of the sanitary water is exceeding 94C or 6 bars the valve is opening.

Overheating – freezing

1. The system has protection against overheating. In order to avoid it, is recommended

to cover the collectors during the summer period or when the system is going to be
out of function for a long period.

2. The system is protected against freezing by using glycol. The level of glycol must be

checked every year by authorized technician. Depending on the local conditions you

4

must be advised by the local dealer about the lowest freezing temperature that the
system can resist. The used glycol is Propylene Glycol 1,2.

Maintenance

1. The system must be maintenance every year, by authorized technician. The

necessary replacement and processes are:

1.1 Replacing of the Mg anodes

1.2 Checking of the safety valves

1.3 Checking of the level of the glycol in the closed loop. If necessary it must be

filled in with the necessary quantity.

1.4 Checking of the connection tubes between collector and tank.

1.5 Replacing of the sealing gaskets of the tubes if necessary.

Performance of the system

All the systems have been tested in accordance to EN12976 and are Solar Keymark certified.
Your local dealer will provide you all the necessary information regarding the following:

1. The recommended load range for the system in l/day.

2. The thermal performance of the system and solar fraction.

ATTENTION:

The system can reach temperature of 94C. For this reason be extremely careful during
sunny days in order to avoid injuries.

5

Nr.

Description

Photo

1

Floor L-bar 2000

2 2 L - bar 1370

4 4

4

3

L - bar 960

2 2

2

4

L –bar 1030

2 2

2

5

Connections L- bar 360

2 2

2

6

Collector holders 1005

2 - - 7 Collector holders 2000

- 2 2 8 Z - Part

2 2 2 9 U - Part

2 2 2

10

Back crossbar 1505

2 2 -

11

Back crossbar 1760

- - 2

12

Bolts M10X16

23

23

23

13

Nut M10

23

23

23

14

Flat washer M10

29

29

29

15

Inox tile holder

4 4 4

16

Bolts M8X12

4 8 8

17

Bolts M8X20

1 1 1

18

Flat washer M8

4 8 8

19

Front cover 1030

1 -

-

20

Front cover 1250

- 1

-

21

Front cover 1750

- -

1

22

Anchor bolt M8X50

4 4 4

23

PLASTIC ANCHORS

4 4 4

Assembly of the support base

Inside the carton box of the support base, you will find all the necessary materials for the
proper assembly of the support base for flat or tiled roof.

SOLECO160
220 2.5

2 2

-200 200 300

6

24

ELBOW ¾ MALE-FEMALE

2 2 2

25

ELBOW 22MM X ¾ MALE

2 2 2

26

ELBOW 22mm x 22mm

1 1 1

27

22MM X 22MM CONNECTOR

- 2 2

28

PLUG 22MM

2 2 2

29

PLUG 1/2MM

1 1 1

30

SLEEVE D22

4 8 8

31

SAFETY VALVE 3 BARS

1 1 1

32

SAFETY VALVE 6 BARS

1 1 1

33

SEALING RINGS

4 4 4

34

TEMPERATURE-PRESSURE

VALVE 94C-6BARS

OPTIONAL

OPTIONAL

OPTIONAL

35

GLYCOL

2 3 4

36

SIDE TUBE HOLDER

1 1 1

37

INSULATED TUBE 320mm

1 - -

38

INSULATED TUBE 650mm

- - 1

39

INSULATED TUBE 210mm

1 - -

40

INSULATED TUBE 800mm

- 1 1

41

INSULATED TUBE 900mm

- 1 -

42

INSULATED COPPER TUBE

Ǿ22 x2000mm

1 1 1

43

7

Installation of the system on a flat roof

Lay on the ground the
2 Floor L-Bar 2000 in
parallel. The distance
between them should
be at 940 mm for the

be at 1350mm.

Left side Floor

L-bar 2000

Right side

Floor L-bar

ATTENTION:

For the flat roof assembly the inox tile holders are not used!!!

models Soleco 160-200 2.5
and 200/2. For the
model Soleco 300 it should

8

Fix the L - bar 1370 to
the 2nd hole of the
Floor L-Bar 2000. This
is the same for all
models.

Use the connection
Connections L- bar 360
in order to bind L -bar
1030 with L - bar 1370.
Then use screw + nut
to tighten the
connection.

ATTENTION: Do not
tight very well at that
stage of the assembly.

Fix the joined parts of
the previous step at
the 2nd hole of Floor
L-bar 2000

2nd hole

9

Fix the joined parts of
the previous step with
the L - bar 1370. It
must be fixed on the
3rd hole.

Join the back
crossbars together by
fixing them in the
middle with bolt and
nut. The upper parts
must be fixed on the
2nd hole and the lower
part on the 3rd hole of
L - bars 1370.

3rd hole

10

Place on the 2nd hole
of the joined parts the
Collector holders
1005/2000. Place on
the 5th hole of the
other end of the
joined parts the
Collector holders
1005/200.

Place the L - bar 960 in
both sides of the
support base.

Place the collector on
the support base. In
models with 2
collectors place both
of them on the
support base.

2nd hole

5th hole

1st hole

6th hole

11

Center the collector/
collectors with the
Collector holders
1005/2000.

Tight the collectors
with the Collector
holders 1005/2000, by
using the bolts and
flash washers M8.

ATTENTION:

- Tight very well on

the upper and
bottom part of
the collector.

- Before tight make

sure that the
collector(s) are
centered.

Place the front cover.

Place the tank on the
assembled support
base.

ATTENTION:

- Make sure that

the tank’s bolts

have been
inserted on the
holes of the U
parts.

- Make sure that

the tank’s bolts

are vertically to
the ground

12

At the end of the
assembly the support
base should appear
like the side photo.

ATTENTION:
Make sure that all the
bolts and nuts are
very well tightened.

13

Installation of the system on a tile roof

Place the Inox tile holders
on the wooden parts of the
roof, below the tiles.

Fix the Inox tile holders on
the woods using the Bolt
M8X50.

The Inox tile holders must
be placed on the 4 corners
of the support base.
For all models the length is
at 2000mm.

dimension D= 800-930mm

dimension D= 1000­1300mm.

Inox tile holder

2000mm

D

ATTENTION:

For the tile roof assembly the back crossbars 1505/1760 are not used!!!

For the models Soleco 160-200 2.5
and 200 the

For the model Soleco 300 the

14

First it must be assembled
a bottom sub-frame.

For models Soleco 160-200 and

Floor L-bar 2000 (2pcs)
and the L-bar 960 (2pcs).

used the Floor L-bar 2000
(2pcs) and the L-bar 1370
(2pcs).

Fix the bottom sub frame
to the inox tile holders.
You may use any of the
available holes.

Tight very well all the bolts
and nuts.

ATTENTION:
Make sure that all the
bolts and nuts are very
well tightened.

Floor L-bar 2000

L-bar 960/
L-bar 1370

must be used the

For model Soleco 300 must be

15

Prepare the upper sub­frame, where will be fixed
the collector and the tank
of the system.
Are necessary the following
components:

- L - bar 1370 X 2

- L –bar 1030 X 2

- Connection L- bar 360

- Collector holders

1005/2000

- Z – Part (pre assembled on

the L-bar 1370)

- U – Part (pre assembled on

the L-bar 1370)

ATTENTION:
The assembly of the parts
must be made as on flat
roof assembly.

In order to fix together the
upper sub-frame with the
bottom sub-frame, they
must be fixed on the 3rd
hole as in the photo.

On the bottom part, they
must be fixed on the 7th
hole of the upper sub­frame and on the 4th hole
of the bottom sub-frame.

3rd hole

3rd hole

7th hole

4th hole

U - Part

Collector

holders

1005/20

Z - Part

L - Bar 1370

Connection L-

bar 360

L –bar 1030

16

ATTENTION:
The upper sub-frame must
be at the external part of
the bottom sub-frame.

Place the collector, the
front cover and the tank as
in the flat roof assembly.

ATTENTION:

The tank’s bolts must be

vertically to the ground.

At the end of the assembly
the system should appear
like in the photos.

Bottom

sub-

frame

Upper sub-frame

17

Hydraulic connection of the system

As long as the system has been installed carefully, it must be connected the hydraulic parts
of the system.

It is important to follow the general rules and conditions as described by the local and
European laws.

The installer must be experienced and certified.

Overall view of the system

18

Filling in the system

Before starting filling in the system make sure that all the connections have been made
correctly.
For safety reasons first start filling in the tank with water from the main.

After completing the filling in of the tank, fill in the system with the glycol/water mixture.

ATTENTION: Advice your local agent about the quantity of glycol in order to protect the
system against freezing.

The filling in of the system with the mixture is made by the top side of the tanks. The 2

openings of ½ ‘’ must be remained open for the process. In each of these 2 openings you

may fill in the mixture slowly in order the air to be removed from the other opening.

It is suggested to make the filling in of the system early in the morning or early in the
afternoon, when the sun radiation is not very high.

19

AG S.P.A.

46033 casteldario - mantova - italia - tel. [phone] (r.a.) - fax [phone]

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