Orkli SPT 2-320 User manual

TECHNICAL MANUAL
Solar water heaters
Installation, maintenance & use instructions

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SOLAR WATER HEATERS
CONTENTS
GENERAL INFORMATION.......................................................................................................................................... 4
DOMESTIC HOT WATER CONSUMPTION ............................................................................................................... 4
SOLAR WATER HEATER OPERATION - WATER HEATING ..................................................................................... 4
ORKLI SOLAR WATER HEATERS ............................................................................................................................. 5
PACKAGING ............................................................................................................................................................... 6
LABELING................................................................................................................................................................... 7
WATER STORAGE TANK SPECIFICATIONS ............................................................................................................ 8
COLLECTOR SPECIFICATIONS................................................................................................................................ 9
ORKLI 160lt/2m2LAYOUT......................................................................................................................................... 11
ORKLI 320lt/4m2LAYOUT......................................................................................................................................... 12
GENERAL INSTALLATION RULES .......................................................................................................................... 13
INSTALLATION POSITION ....................................................................................................................................... 14
GENERAL PREVENTION MEASURES.................................................................................................................... 15
LIGHTNING PROTECTION ...................................................................................................................................... 15
SUPPORT BASE PARTS .......................................................................................................................................... 16
SUPPORT BASE ASSEMBLY ON A FLAT SURFACE.............................................................................................. 17
SUPPORT BASE ASSEMBLY ON AN INCLINED SURFACE................................................................................... 20
HYDRAULIC CONNECTION..................................................................................................................................... 23
CLOSED LOOP FILLING .......................................................................................................................................... 23
ELECTRICAL CONNECTION ................................................................................................................................... 24
SYSTEM INSTALLATION ON A TILED ROOF WITH THE WATER STORAGE
TANK UNDER THE ROOF (NATURAL CIRCULATION OPERATION) ..................................................................... 25
CONNECTING THE COIL HEAT EXCHANGER ....................................................................................................... 25
POSSIBLE PROBLEMS - SOLUTIONS.................................................................................................................... 26
SERVICE - MAINTENANCE ..................................................................................................................................... 27
POST INSTALLATION INSTRUCTIONS................................................................................................................... 28
CHECK LIST ............................................................................................................................................................. 29

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GENERAL INFORMATION
In the present manual you will nd all necessary instructions with regard to the installation, operation and
maintenance of the product.
The company is active in the Solar Energy with high-tech equipment, ultra-modern facilities and certied products
of high quality. Our experience and know-how support our co operations, before and after sales, both in Europe and
internationally. Nowadays, the necessity for production and saving of energy without at the same time polluting the
environment has become common knowledge. The planetʼs conventional energy resources are diminishing to a
threatening level as our societyʼs energy requirements are increasing, generating pollutants that affect the climateʼs
balance. Renewable energy sources promise a solution to the energy problem as well as to pollution. Gradually, the
international legislation is changing and encouraging - or even imposing - the use of alternative energy products, with
the aim to satisfy energy requirements without endangering the environment.
DOMESTIC HOT WATER CONSUMPTION
Statistically, it is estimated that the mean family consumption is 35 to 50 litres daily per person. If we add the
consumption of a washing machine and a dishwasher, when these are connected to the solar water storage tank, then
each requires 20 litres per day (per wash). Thus, a family of four, for example, with a mean hot water consumption
of 40 litres per person, needs an 160 litres solar water heater. If household appliances connected to the solar water
heater are added, then the demand increases by at least 40 litres daily. In order to take full advantage of the solar
water heater, maximum use of hot water should be made during daytime, so that the system can continuously
produce hot water during the daylight hours, maintaining thus its maximum efciency.
SOLAR WATER HEATER OPERATION - WATER HEATING
The collecting surface absorbs solar energy and heats the liquid (water or antifreeze mixture) that circulates in the
water element. This liquid when heated becomes lighter and is directed to the water storage tank where it heats the
water. The ow of the collector’s liquid is accomplished naturally and not forced (thermosiphonic ow).
The factors that affect the temperature of the water supplied by a solar system are many and their values vary according
to the season, the time of day and the location. Keeping in mind that the solar system is a system that is exposed to
the weather conditions, basic parameters affecting its performance are the mains water temperature, the available
solar energy and the ambient temperature. The mains water does not have a constant temperature throughout the
year, being much colder in winter compared to summer. Considering 45°C as a satisfactory temperature for the
domestic hot water (in order to full the needs of a home) and based on statistic values, in winter the temperature
of the mains water has to be increased by approximately 35°C, whereas during the summer the increase is 20°C.
Similarly, the available solar energy does not remain the same throughout the year, being much less in the winter
months than in the summer months. During periods of reduced sunlight and low ambient temperatures, the solar
water storage tank assures the preheating of the water and can be assisted by an optional electrical heating element.
As far as night-time temperature losses are concerned, these are limited as much as possible by the solar system’s
powerful thermal insulation. They are nevertheless affected by ambient temperatures, which vary depending on the
location and the weather.

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SOLAR WATER HEATERS
ORKLI SOLAR WATER HEATERS
RELIABILITY - HARMONY - AESTHETICS
ORKLI Solar Systems constitute an ecological proposal and an effective energy solution, combining high output,
autonomy, aesthetics, facility in the installation and money saving. They are made of excellent materials according to
international specications and have all the certications and tests that conrm their quality.
They are highly aesthetic systems, which can be simply and quickly installed to blend with the traditional or modern
architecture of a building and to provide free hot water almost the whole year round. Even in regions with low sunlight
they achieve the preheating of the water, which contributes to a drastically reduced consumption of conventional
energy.
With the use of solar systems, thermosiphonic or forced circulation, is achieved energy saving of 70-100%. At the
same time the operation time of the boiler or electric resistance is decreased, depending on the sunlight of each
region and the system’s size, with simultaneous reduction of emission of carbon dioxide.
Solar Keymark
Certied

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PACKAGING
PRODUCT RANGE
ORKLI thermosiphonic systems are available in the following models:
Each model packaging contains all the necessary equipment:
1. The water storage tank
2. The collector (s)
3. The support base system & ttings and accessories
The water storage tank is placed between two round styrofoam covers, which are tightened on the storage tank with
stretch lm.
The collector is packed in a carton box.
All the parts of the support base system, with the connection ttings, the antifreeze liquid and the other accessories
are packed in a carton box.
The ttings and the accessories of each appliance appears in the following table:
MODEL
ORKLI SPT 1-160
ORKLI SPT 2-320
DESCRIPTION
160lt tank, 2.0m2collector
320lt tank, 2 x 2.0m2collectors
SOLAR WATER HEATERS FITTINGS & ACCESSORIES
1 COLLECTOR 2 COLLECTORS
Quantity Description Quantity Description
1 PC T-PIECE WITH THE FILLING VALVE 1 PC T-PIECE WITH THE FILLING VALVE
1 PC ELBOW 3/4’’ FEMALE DN16 INOX 1 PC ELBOW 3/4’’ FEMALE DN16 INOX
2 PCS ELBOW Ø22 COPPER X DN16 INOX 2 PCS CONNECTOR Ø22 COPPER X Ø22 COPPER
2 PCS END CAP Ø22 COPPER 2 PCS ELBOW Ø22 COPPER X DN16 INOX
1 PC ONE WAY SAFETY VALVE 10 bar 2 PCS END CAP Ø22 COPPER
1 PC SAFETY VALVE 3.5 bar 1 PC ONE WAY SAFETY VALVE 10 bar
2 PCS INOX TUBE DN16 1 PC SAFETY VALVE 3.5 bar
1 PC INSULATION Ø22 X 9 2 PCS INOX TUBE DN16
* ANTI-FREEZE LIQUID 1lt 1 PC INSULATION Ø22 X 9
* ANTI-FREEZE LIQUID 1lt
1. Boiler
2. Collector(s)
3. Support base, ttings
& Accessories
4. Palette
1
3
4
2
* The volume of liquid depends on the conguration boiler/collector

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SOLAR WATER HEATERS
LABELING
ORKLI solar water heaters are identied by two stickers, one of them on the tank and the other on the collector. On
these stickers all the details of the system are written. The information provided on the stickers are important for the
future identication of the system.
Flat harp solar collector AL 2.0
Colector solar plano arpa AL 2.0
SOLAR BOILER GLASS
ACUMULADOR SOLAR VITRIFICADO
Type: XXX lt / Closed loop
Modelo: XXX lt / Circuito cerrado
S/N: XXXXXX
Fecha: XX / XXXX
IP 23
Capacity / Capacidad: XXX lt
Capacity Closed Loop /
Capacidad del circuito cerrado: XXX lt
Nom. Pressure / Pression nominal: XXX bar
Dimensions LxWxH / Dimensiones LxAxA (mm): 2010 x 1010 x 110
Overall area / Area total: 2,03 m²
Absorber area / Area del absorbedor: 1,81 m²
Overall collector weight / Peso del captador vacio: 32,3 kg
Volume of heat transfer uid / Volumen del uido de transmisión térmica: 1,75 lt
Absorber coating: High selective vacuum coating
Absorbedor: Tratamiento altamente selectivo al vacío
Standstill temperature / Temperatura max. de estancamiento: 186 °C
Max. operating pressure / Presion max. de trabajo: 1,0 MPa (10 bar)
Transparent cover / Cubierta transparente: Tempered, low-iron solar glass / Vidrio solar templado
S/N: XXXXXX
Date: ΧΧ / ΧΧΧX
MADE IN EU
MADE IN EU

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6. Large round ange rubber protected: innovative, smart design for the quick cleaning of minerals, fast
replacement of anode and immediate access to the electrical components.
7. Complete sealing of EPDM, non toxic material, which does not permit water to contact the ange, thus protecting
it against electrolysis and corrosion, specially made to withstand the generally accepted specications with
regard to the heat resistance.
8. Heating element (optional) for the use of electricity as an auxiliary power source. All electrical components carry
a CE marking according to EN 60335-1 and EN60335-2-21 standards.
9. Automatically regulated thermostat (optional) with bipolar protection and auxiliary fuse. All electrical
components carry a CE marking according to EN 60335-1 and EN60335-2-21 standards.
10. Protective cover: designed to ensure the proper ventilation of the electrical section and its protection from the
environmental conditions.
Gland: for sealing the passage of the heating element’s connection cable.
11. Cold water inlet: 1/2” BSP male threaded pipe end for water stratication and 10 bar safety valve for releasing
pressure.
12. Hot water outlet: 1/2” BSP male threaded pipe end.
13. Jacket inlet: 3/4” BSP male threaded pipe end.
14. Jacket outlet: Closed loop circuit lling point: 3/4” BSP male threaded pipe end.
15. 3.5 bar safety valve connection location: 1/2” BSP male threaded pipe end.
WATER STORAGE TANK SPECIFICATIONS
STEEL - ENAMEL
1. Cylinder: 2.5mm thickness cold rolled steel with a double internal layer of enamel, baked at 860°C according to
DIN 4753. The water storage tanks are checked individually upon exit from the enameling unit, assuring the top
quality of the enamel.
2. Surrounding heat exchanger (Jacket): cold rolled steel, 1.5mm thickness for the operation of the closed loop,
which is compulsory at low temperatures and also in areas with water with high mineral content. It is specially
designed so as to absorb the heat transfer medium pressure.
3. Thermal insulation: ecological, high-density, expanded polyurethane ensures minimum heat loss, maintaining
the hot water temperature.
4. External housing: prepainted galvanized steel.
5. Cathode protection by magnesium anodes for effective protection against corrosion and mineral deposits
caused by electrolytic reactions.
1012 15
176 2 3 4
11 14
8 59

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SOLAR WATER HEATERS
COLLECTOR SPECIFICATIONS
Solar Keymark
Certied
1. External one piece aluminium trough of high aesthetics, shaped by deep drawing method in 400 tn capacity
press, made of naval aluminium alloy, rich in magnesium. Robust construction for perfect tightness.
2. High density, eco-friendly thermal insulation achieved with a 60mm thick layer of prepressed rockwool with
a covering of black glass fabric for the minimization of thermal losses.
Rockwool insulation thermal conductivity: λ=0.035 W/m grd (DIN 56612, measured at 0°C)
3. Water frame of copper pipes of suitable gauge and thickness (headers: Ø22, manifolds: Ø8) Headers are
punched with upper expansion, for perfect manifolds tting, thus avoiding pressure drop in the collectors.
(tube pitch) = 93mm (EN 1652).
4. Sun-Selective complete area absorber made of selective aluminium sheet with a special titan coating formed
in vacuum,of high absorbency and low radiation, covers the complete window area as well as the headers, thus
increasing the collector’s absorbency, Laser Welded to the water frame.
5. Special plastic parts for supporting and sealing the water frame to the trough, specially designed for the
collector’s ventilation, with sensor supporting option.
Special silicone rubber seals allow uctuation of the absorber’s length (contraction - expansion) in a -40°C
to +200°C temperature range.
6. Tempered solar glass low iron, with a stable coefcient of expansion and high light transmittance, can withstand
adverse weather conditions (e.g. hail storm, extreme temperature changes, etc.).
7. Solar glass rubber seal: UV proofed
8. Aluminium prole electrostatically painted (Al Mg Si 05): for solar glass seating and supporting.

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FLAT SURFACE INCLINED SURFACE
One type of supporting base
system, made of 2.5mm thick
galvanised steel, for installation
on at or inclined surfaces
SUPPORT BASE
YEARLY ENERGY OUTPUT (kWh/m2)
ATHENS - GREECE 614
DAVOS - SWITZERLAND 795
WÜRZBURG - GERMANY 571
STOCKHOLM - SWEDEN 535
Normal absorber design with louvers.
Air turbulence increases heat loss
Complete area technology
The uniform area prevents heat loss

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SOLAR WATER HEATERS
Note: All dimensions measured in mm
COLLECTOR AL 2.0
TOTAL AREA (m²) 2.03
NUMBER OF MANIFOLDS 10
HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION
CAPACITY (lt) 1.75
ABSORBER SURFACE (m2) 1.81
TOTAL DIMENSIONS (mm) 2010x1010x110
COLLECTOR TOTAL WEIGHT (without liquid) (kg) 38
ABSORBER SELECTIVE ALUMINIUM
ABSORBENCY /RADIATION COEFFICIENT 95% ±2% / 5% ±2%
TOTAL SYSTEM ORKLI SPT 1-160
NUMBER OF COLLECTORS 1
SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 131.5/296
MAX. WATER TANK OPERATING PRESSURE (bar) 10
CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5
MAX OPERATING TEMPERATURE 95°C
ORKLI 160lt/2m2 - JACKET AND COLLECTOR CAPACITY: 15lt
ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7
MIN. TEMPERATURE (°C) -3 -5 -8 -11 -15 -20 -28
FLAT SURFACE INCLINED SURFACE
ORKLI 160lt/2m2 LAYOUΤ
ORKLI SPT 1-160
FLAT SURFACE
ORKLI SPT 1-160
INCLINED SURFACE
2
4
1
3
6
5
8
7
1
2
6
5
4
8
7
ITEM Nr. PART ΝΑΜΕ DIMΕΝSIONS QTY.
1 Beam L (Laminate section 60 x 2.5mm) 2060 x 60mm 2
2 Beam L (Laminate section 60 x 2.5mm) 2250 x 60mm 2
3 Beam L (Laminate section 60 x 2.5mm) 1190 x 60mm 2
4 Beam L (Laminate section 60 x 2.5mm) 925 x 60mm 2
5 Collector Support 940mm 2
6 Beam (Laminate section 33 x 2mm) 980mm 4
7 Boiler Support 2
8 Plastic Cover for Supporting Strips (Slab) 2
9 Hexagon Head Bolt M8 M8x16 32
10 Hex Nut M8 28
11 Washer Ø8 4
12 Bolt Μ8 x 60 4
13 Upat D10 4
14 Hexagon Head Screw with Washer 4
ITEM Nr. PART ΝΑΜΕ DIMΕΝSIONS QTY.
1 Beam L (Laminate section 60 x 2.5mm) 2060 x 60mm 2
2 Beam L (Laminate section 60 x 2.5mm) 2250 x 60mm 2
4 Beam L (Laminate section 60 x 2.5mm) 925 x 60mm 2
5 Collector Support 940mm 2
6 Beam (Laminate section 33 x 2mm) 980mm 4
7 Boiler Support 2
8 Plastic Cover for Supporting Strips (Slab) 2
9 Hexagon Head Bolt M8 M8x16 24
10 Hex Nut M8 20
11 Washer Ø8 4
12 Hexagon Head Screw with Washer 4
WATER STORAGE TANK 160lt
DIMENSIONS (mm) 580x1125
WEIGHT EMPTY (kg) (without packaging) 66.8
JACKET CAPACITY (lt) 12.9
JACKET SURFACE (m2) 0.91
MAX TEST PRESSURE (bar) 15
MAX OPERATING PRESSURE (bar) 10

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Note: All dimensions measured in mm
COLLECTOR AL 2.0
TOTAL AREA (m²) 2.03
NUMBER OF MANIFOLDS 10
HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION
CAPACITY (lt) 1.75
ABSORBER SURFACE (m2) 1.81
TOTAL DIMENSIONS (mm) 2010x1010x110
COLLECTOR TOTAL WEIGHT (without liquid) (kg) 38
ABSORBER SELECTIVE ALUMINIUM
ABSORBENCY /RADIATION COEFFICIENT 95% ±2% / 5% ±2%
TOTAL SYSTEM ORKLI SPT 2-320
NUMBER OF COLLECTORS 2
SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 225/555
MAX. WATER TANK OPERATING PRESSURE (bar) 10
CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5
MAX OPERATING TEMPERATURE 95°C
ORKLI 320lt/4m2 - JACKET AND COLLECTOR CAPACITY: 30lt
ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
MIN. TEMPERATURE (°C) -1 -3 -4 -5 -6 -8 -9 -11 -13 -15 -17 -20 -23 -26 -32
FLAT SURFACE INCLINED SURFACE
ORKLI 320lt/4m2 LAYOUΤ
ORKLI SPT 2-320
FLAT SURFACE
ORKLI SPT 2-320
INCLINED SURFACE
2
4
1
3
6
5
8
7
1
2
6
5
4
8
7
ITEM Nr. PART ΝΑΜΕ DIMΕΝSIONS QTY.
1 Beam L (Laminate section 60 x 2.5mm) 2060 x 60mm 2
2 Beam L (Laminate section 60 x 2.5mm) 2250 x 60mm 2
3 Beam L (Laminate section 60 x 2.5mm) 1190 x 60mm 2
4 Beam L (Laminate section 60 x 2.5mm) 925 x 60mm 2
5 Collector Support 1500mm 2
6 Beam (Laminate section 33 x 2mm) 980mm 4
7 Boiler Support 2
8 Plastic Cover for Supporting Strips (Slab) 2
9 Hexagon Head Bolt M8 M8x16 36
10 Hex Nut M8 28
11 Washer Ø8 8
12 Bolt Μ8 x 60 4
13 Upat D10 4
14 Hexagon Head Screw with Washer 4
ITEM Nr. PART ΝΑΜΕ DIMΕΝSIONS QTY.
1 Beam L (Laminate section 60 x 2.5mm) 2060 x 60mm 2
2 Beam L (Laminate section 60 x 2.5mm) 2250 x 60mm 2
4 Beam L (Laminate section 60 x 2.5mm) 925 x 60mm 2
5 Collector Support 1500mm 2
6 Beam (Laminate section 33 x 2mm) 980mm 4
7 Boiler Support 2
8 Plastic Cover for Supporting Strips (Slab) 2
9 Hexagon Head Bolt M8 M8x16 28
10 Hex Nut M8 20
11 Washer Ø8 8
12 Hexagon Head Screw with Washer 4
2034
2125
1859
900
2189
2553
630
2189
WATER STORAGE TANK 320lt
DIMENSIONS (mm) 580x2076
WEIGHT EMPTY (kg) (without packaging) 119.9
JACKET CAPACITY (lt) 25.8
JACKET SURFACE (m2) 1.79
MAX TEST PRESSURE (bar) 15
MAX OPERATING PRESSURE (bar) 10

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SOLAR WATER HEATERS
GENERAL INSTALLATION RULES
ATTENTION! Installation must be in compliance with local & national rules concerning water and electrical
installations (plumbing, electricity, hygiene, urban and others).
The solar system’s packaging must be removed at the site of installation in order to protect the device from shocks
during its transportation, making sure that the collectors are not supported on their pipe joints. Until installation is
completed, the collector’s glass must remain covered until the water storage tank is lled with domestic water, so as
to avoid the boiling of the lling liquid or the breaking of the glass. The plastic protective caps must be removed from
the water storage tank’s and the collectors’ pipe joints.
Installation location - shading: Prior to installation, a proper selection of the location must be made by the installer
(in agreement with the customer), and the surface must be checked (taking into consideration its static resistance),
so that it can bear the weight of the system.
On inclined roofs the system should not be placed between two beams but above a single one.
The position chosen for the solar water heater installation should not be shaded by any obstacles such as trees,
buildings and other all year round, so as to ensure at least 4 hours of uninhibited exposure of the collector to the sun
during the midday hours.
LATITUDE DISTANCE BETWEEN THE OBSTACLE AND THE COLLECTOR (L)
0° - 25° 1.0 x H
26° - 35° 1.5 x H
36° - 45° 2.0 x H
46° - 50° 2.5 x H
> 50o3.0 x H
Any deviation means a reduction in the system’s performance. If a deviation from the proper orientation cannot
be avoided, then the system’s performance should be corrected by increasing the collector surface, following a
study and evaluation of the specic conditions that apply. As the sun ray’s angle of attack varies with time but also
depending on the system’s location, the collector’s angle should be approximately equal to the installation location’s
latitude. At this angle the maximum energy gain on an annual basis is achieved.
Installation particularities: In case there is no compatibility between the surface where the solar water heater will be
installed (inclined or at) and the standard equipment provided with the system, a different kind of equipment should
be used. The responsibility for the equipment chosen lies on the installer and in no case on the company. It is up to
the installer to propose & install the different equipment required, who must previously agree it with the customer.
Special weather conditions: In regions suffering from heavy snowfalls, please make sure that the snow is always
timely removed. For this case and cases of regions with storms, high wind velocity, rainfall, cyclones, tornadoes, the
system must be placed on the roof as rmly as possible and must be tightened with extra metal stripes. In areas
where these conditions occur and hail of more than 20mm in diameter is to be observed, it is recommended that
insurance for the solar water heater is issued. In every case, it is recommended to secure your solar water heater on
the support base system.
L
H
N
SN
S
Northern Hemisphere Southern Hemisphere
Orientation - optimum angle: a basic factor for the system’s optimum
performance is the selection of its angle and orientation for its particular
location and the time during which the maximum gain is required.
The solar system should be positioned so that the collector’s surface
faces the geographical south, if the installation takes place in the
Northern Hemisphere (and the geographical north for the Southern
Hemisphere), i.e. it should always face the Equator.

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Piping: the routing of the piping and cabling must be agreed upon between the installer and the client, so as to ensure
the proper installation of the solar system in compliance with local rules concerning water and electrical installations.
Make sure that the tubes connecting the storage tank with the collector and the piping to/from the water heater
are insulated in such a way that they can withstand temperatures covering the range of: -30°C to 120°C. Anti-UV
protection must be used for the insulation.
Antifreeze Liquid: The special heat transfer medium used in the closed circuit protects the system from freezing and
from salt accumulation inside the collector tubes. The jacket in which the heat transfer medium’s circulation takes
place, does not communicate with the water tank. The thermal uid must be well mixed with water in a percentage
that is necessary to protect the system. The responsibility for the appropriate heat transfer medium quantity as well
as for the use of other liquid than the one accompanying the solar water heater lies on the installer and in no case
on the company.
The use of water or inappropriate liquid may annul the warranty validity.
After the installation is completed, the area where the work was executed should be clean & tidy. The customer
should ll in the check list provided by the company. The company does not hold any responsibility that may be the
result of an inappropriate installation or incorrect use of components used for the solar water heater installation.
INSTALLATION POSITION
The installation is only allowed on roofs and at surfaces of adequate bearing capacity. Before you proceed with the
installation, make sure that the roof and/or the construction is of adequate bearing capacity in terms of statics, always
according to the expected maximum loads at the installation point. If the installation is in a place with an extremely
big wind and snow load, the system as a whole should be statically checked by a skilled person, e.g a specialized
engineer. In special cases, strengthening or more solid constructions may be required.
Space requirements for installation on the roof
TILED ROOF
For the installation on the roof the following points must be taken care of:
yThe minimum distances from the ends of the roof should be:
- From the sides: distance equal to the width of two tiles
- From the top of the roof: distance equal to three rows of tiles
yThe minimum distance limit of 0.8 m should necessarily be respected, in order for the collectors and the mounting
accessories not to be exposed to winds the power of which increases on the perimetrical edges of the roof.
SOLAR COLLECTOR
INSTALLATION MODE WIND LOAD
[km/h] / [kΝ/m2]
SNOW LOAD
[kΝ/m2]
Inclined surface Inclination angle: 15° – 75° 151 / 1.1 1.25
Flat surface Inclination angle: 35° 151 / 1.1 1.25
Τhe system may only be installed in locations with lower wind and snow load values than the ones mentioned above.
Space requirements for free standing installation
FLAT ROOF
The system should be installed at least 1.5 m away from the edges of the roof so as for:
1. The systems to be accessible for maintenance reasons.
2. The systems and the xing system not to be exposed to strong winds which are developed at the ends and
edges of the roof.
3. The snow to be removed.

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SOLAR WATER HEATERS
GENERAL PREVENTION MEASURES
yPlease respect the instructions related to accidents prevention and the safety rules during the installation of the
solar thermal systems as well as the piping.
yPlease keep the work place clear and free of objects obstructing the execution of works.
yDo not let children, pets and other people to come in contact with the tools or close to the working place. This has
to be respected, especially in case of existing buildings renovation.
yStore the antifreeze liquid in a safe place away from children.
yDuring the execution of maintenance, service or installation modication works, please remove the electrical
devices and tools current collector or protect the electrical devices and electrical tools against unintended
activation.
yUse only the tools intended to be used for this specic solar system. The use of other components or inappropriate
tools can cause accidents.
Requirements related to the personnel
yThe installation of our Solar Thermal systems can only be undertaken by authorized specialized companies and
trained personnel.
yWorks in electrical installations or conductors have to be executed by trained & specialized electro technicians only.
Labour uniforms
yHave protection glasses on, as well as appropriate work uniform, protection shoes, protection helmet and special
long hair net.
yDo not wear baggy clothes or jewelry, as they me be trapped in movable parts.
yIf, despite the use of protection glasses, antifreeze liquid comes in contact with your eyes, wash off your eyes with
plenty of water and with the eyes wide open.
yPlease wear protection helmet during the installation works executed at the level of or above the head.
Installation of the water storage tank
yFor the transportation, mounting & installation of the tank use forklifts suitable for the dimension and weight of the
tank.
yPlease protect the enameling surface from beatings during transportation and installation.
yDue to the tank’s weight, there is a risk of accidents. Please make sure that the bearing capacity of the ground
where the tank is going to be installed is adequate, when the tank is full.

16
The company preserves the right to change all specications of the products and their accessories without prior notice
For 2.0m2 collectors
SUPPORT BASE PARTS
For 4.0m2 collector (2 x 2.0m2)

17
The company preserves the right to change all specications of the products and their accessories without prior notice
SOLAR WATER HEATERS
2. Place the vertical part 3 to the
above parts
3. Screw part 4to the rest parts of the
frame and tighten all screws.
Repeat steps 1, 2 & 3 for the other
pairs of parts.
SUPPORT BASE ASSEMBLY ON A FLAT SURFACE
1. Screw parts 1to part 2,
using the M8 screws and nuts
included in the packaging.
4. Screw parts 6to the back side of the frame. Screw part 5to the bottom part of the frame and tighten all screws.
5. Screw part 5to the upper part of the
frame without tightening the screws.
5
2
1
3
4
6
5

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The company preserves the right to change all specications of the products and their accessories without prior notice
9. Place and tighten the Ø22 mechanically tightened plug on the top right and on the bottom left of the collector/
collectors*. Place the water storage tank on the base with its electrical components to the left, when viewing the
water storage tank from the front.
10. Centre the water storage tank’s position on the collector/s. Rotate the water storage tank (if necessary) in order
for the cold and hot domestic water sockets to remain vertical to the horizontal surface. Screw the water storage
tank onto the base using the screws provided in the packaging. Ensure the appliance is not tilted and is properly
levelled. It is necessary to use a level.
11. Place the small exible tube on the special connection DN16 INOX at the water storage tank’s side where the
heating element is located and to the socket marked “collector intake”.
12. Join the other end to the top left socket of the collector using the Ø22x DN16 INOX corner tting,* having rstly
passed the tube through the insulation pipe.
13. Place the T-piece with the lling valve to the socket on the right side of the water storage tank marked “collector
return”.
14. Place the big exible tube with the special connection to the T-piece on the right side of the water storage tank.
6. In case of two collectors, rst place the left one to the bottom part 5lifting the upper part 5. Place the screws with
the support washers of the collector (4 for each collector) without tightening them. Place the Ø22 mechanically
tightened unions at the edges of the collector.
7. Join the second collector and
tighten the unions*.
8. Screw on the two supports 7of the tank. Tighten all screws on the base. Properly orientate the base with the
collector. Firmly attach the base using 4 Upat D10 and bolts (M8x60).
N
SN
S
Northern Hemisphere Southern Hemisphere
60mm
7

19
The company preserves the right to change all specications of the products and their accessories without prior notice
SOLAR WATER HEATERS
15. Place the other end at the bottom right socket of the collector using the Ø22x DN16 INOX corner tting*, having
rstly passed the tube through the insulation tube. Tighten all unions in the system as well as all the screws
on the base. Do the hydraulic connection, ll the closed loop and do the electrical connection as described in the
relevant sections. Check for leaks.
16. After having placed the collectors at a parallel to each other position, fasten them to the bottom side.
17. Fit the water storage tank supporting base covers.
* Use lock nuts in order to avoid the copper tube mechanical strain.
STEP 9
STEP 17
STEP 11
STEP 15
STEP 13-14

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The company preserves the right to change all specications of the products and their accessories without prior notice
1. Screw part 1to part 2, using the M8 screws and nuts included in the packaging. Repeat for the second pair.
SUPPORT BASE ASSEMBLY ΟΝ ΑΝ INCLINED SURFACE
ATTENTION! After the installation check that the collectors surface has a tilt angle to the horizontal position of
geographical latitude ±5°.
3. Screw the collector supporting part 5
to the bottom part of the frame and
tighten the screws.
4. Screw the collector supporting part 5
to the top part of the frame without
tightening the screws.
5. Bend the straight parts 6of
step 2 with the hand covering
the beams of the tiled roof.
Drill and fasten up with bolts.
Use level so that the base is
horizontally placed.
5
5
1
2
2
1
2
1
2. Place part 4 between the two Π shape parts constructed in the former step 1 in order for the frame to be formed.
Screw straight parts 6(which will be used for the mounting of the support base to the tiles) to the botton part.
Repeat for the rest of the parts.
4
6
4