SOLAR COLLECTORS. Excellent efficiency, the best characteristics, high quality. The highest efficiency. More power.

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1 The highest efficiency The efficiency of the selective collectors is the highest, commercially accessible for residential types of applications. More power Release up to 50% more power by square meter than conventional solar collector. Attractive design Unique product, with optimize and attractive design. Reliable and tested materials SOLAR COLLECTORS Tempered glass, selective foil, embossed back side metal sheet and strong aluminum profile, enabling reliable functioning. Excellent efficiency, the best characteristics, high quality

2 SOLAR COLLECTOR The selective collector from the series ESK 2.5 represents a modern high quality product. Those collectors are made from the most quality materials which enable long life exploitation and using in different weather conditions. Usage Usable as solar installation for sanitary hot water generation and support in heating installations. For individual buildings, the solar energy covers in average up to 85% of needs for sanitary hot water per year. Functionality The sunlight hitting the absorber is transformed into heat and transported to the thermal store through copper tubes and solar fluid. Advantages Usage of selective and one absorber plate along the collector surface, obtain maximal heat efficiency. Light-transmissive termal tempered solar glass permanently ensures a high degree of sunlight admittance. Extraordinary longevity and constant performance data Permanently high solar yields with a good value-formoney ratio Good shutdown characteristics as the collector tubing is in accordance with the latest technology Attractive and pleasing design Quick and easy installation

3 REFERENCES Hotel METROPOL - Ohrid Hotel MILENIUM - Bitola Types The selective solar collectors from the series ESK 2.5 SB, are made in two variants: The base version has single glazed tempered solar glass, used in applications such as domestic hot water (DHW), industrial hot water (IHW), swimming pools, etc. Double glazed version has two tempered solar glass with 9mm space gap filled up with argon and reinforced insulation. This type has better efficiency and usually is used as supplement in the central heating systems for production of domestic hot water especially in regions with low outside temperatures.

4 Company profile The beginning organization of the company is appointed from 1986 under the name Grom, as an engineering company in the field of solar systems, central heating systems and air-conditioning. Continuing the tradition in 2000 is established Euroterm. The new company have entered in some other fields of business as trading, and especially in production of high quality solar collectors. Mission and vision Euroterm has build its own reputation on basis of quality. The fact that Euroterm is the first manufacturer of solar collectors with Full Plate Ultrasonic Welding in the region, which obtain additional motive, our mission to be continuous development, with target of reaching superior products with recognized characteristics, as well with favorable price for our clients. Business philosophy Dedication of our expert team have already contribute implementation of quality standards ISO 9001:2008 and certainly SOLAR KEYMARK isued by DIN CERTCO, tested in SPF Institute for Solar Technology. TEHNOMA Skopje TEHNOMA Skopje INTERSOLAR Munich

5 SOLAR COLLECTOR 1. Aluminium batten Euroterm Solar Collectors have been manufactured under the strictly rules of quality to reach their high performances. The collectors contain continuous copper sheet with selective treatment Blutec Eta Plus, welded by ultrasounds on the collector of copper U- type or harp-type. Welding of the absorber is carried out by TIG process, and every single unit is tested under air pressure at 15 bar and drown into water sink. The casing is made up of high quality aluminium alloy ALMgSi 0.5 F22. The transparent top is made up of AGC Planibel Clearvision tempered solar glass of high resistance, low iron content and low emissivity. The used insulation is mineral glasswool slab with 50 kg/m3 density, covered by layer of black fiber glass. 2. Solar glass 3. Flat absorber 4. Copper pipes frame 5. Insulation 6. Rear side 7. Collector body Collector Absorber The latest technology of selective coated absorbers that have been used for the EUROTERM ESK 2.5 SB serie solar collectors transfer the sun radiation heat in maximum level and minimize the reflection loss which decrease the efficiency. 7% UV rays Percentage of energy 47% Visible Average of the solar constant 1353 W/m2 Ultrasonic Welding Technology Ultrasonic welding methode which is the one of the most modern and latest technologies has been used to connect the selective coated absorber surface to the riser pipes. 48% Infrared rays Absorber Coating Collectors with selective coated absorbers are a clear alternative to conventional energy generation and also help to considerably reduce CO2 emmissions. As the heart of the solar collector, eta plus efficiently converts solar energy into heat and at the same time protects the collector against energy losses. Eta plus provides optimal technical properties: -above-average aging and temperature resistance-outstanding homogeneity of the coating over the entire material widthabsorption 95%, thermal emission 5% -top quality and a zero-emission industrial production process.

6 LOGISTICS Having all potentially required collectors in stock is quite a logistic feat. Even during the peak season we offer a supply reliability of more than a month s production. Logistics services at EUROTERM also include packaging solutions that are developed and implemented to suit the customers needs as well as transport and warehousing requirements. Our proprietary packaging centre ensures flexible and affordable packaging of collectors and mounting systems regardless of the transport type.

7 PRODUCTION Faithful to our objective of providing the highest guarantee to our products, we use the most advanced technological means and fully automated manufacturing systems, wich results with the annual production capacity of 50,000 m2 (35 MW) of Solar Thermal Collectors, for applications such as domestic hot water (DHW), support to central heating, industrial hot water (IHW), in-floor radiant heating, swimming pools, etc.

8 SELECTIVE SOLAR COLLECTOR TYPE ESK SB Technical characteristics: copper absorber with Eta plus selective foil 0.2 mm, corrugated low iron tempered glass, 4 mm thick dimensions 2149 x 1159 x 90 mm SELECTIVE SOLAR COLLECTOR TYPE ESK SB U Technical characteristics: copper absorber with Eta plus selective foil 0.2 mm, corrugated low iron tempered glass, 4 mm thick dimensions 2149 x 1159 x 90 mm

9 10 years warranty Tip ESK 2.5 SB ESK 2.5 SB - U Gross area (m 2 ) 2,49 2,49 Light entering area (m 2 ) 2,35 2,35 Absorber surface (corrugate) (m 2 ) 2,32 2,32 Absorber material copper sheet with "Eta plus" selectiv surface coating Absorption coefficient (Eta plus) (%) 95 ± 2 95 ± 2 Emission coefficient (Eta plus) (%) 5 ± 2 5 ± 2 Cu Pipe register frame (mm) Ф 8 x 0,5 Ф 8 x 0,5 Collective Cu pipe frame (mm) Ф 22 x 0,8 Ф 22 x 0,8 Absorber volume (l) 1,7 1,7 Transparent front cover 4mm tempered solar glass - AGC Solar light transmission through glass (%) 92 ± 2 92 ± 2 Solar energy transmission through glass (%) 91 ± 2 91 ± 2 Number of connections 4 2 Connection diameter (R) Ф 22 Ф 22 Max. working / test pressure (bar) 10 / 14 Stagnation temperature ( o C) 199 Insulation - back side 40 mm glass wool (50kg/m 3 ) Insulation - on the sides - Back area 0.5 mm embossed aluminium sheet Collector construction aluminium profil AlMgSi 0,5 F22 Welding method ultrasonic Height (mm) Width (mm) Depth (mm) Weight (kg) Collector efficiency Pressure drop 0,4 1.0 Collector efficiency for G = 800 W/m 2 0, Absorber Aperture Gross Δp (kpa) 0,3 0,25 0,2 0, , , ,02 0,04 0,06 0,08 0,1 0,12 T m* [Km 2 /W] Flow (kg/s) Reference area Absorber area Aperture area Gross area η0 (-) a1 (W/m²K) a2 (W/m²K²) Pressure drop

10 SELECTIVE SOLAR COLLECTOR TYPE ESK SB T Technical characteristics: copper absorber with Eta plus selective foil 0.2 mm, corrugated low iron tempered glass, 9mm filled with argon, 2 x 4 mm thick dimensions 2149 x 1159 x 102 mm SELECTIVE SOLAR COLLECTOR TYPE ESK SB TU Technical characteristics: copper absorber with Eta plus selective foil 0.2 mm, corrugated low iron tempered glass, 9mm filled with argon, 2 x 4 mm thick dimensions 2149 x 1159 x 102 mm

11 10 years warranty Tip ESK 2.5 SB T ESK 2.5 SB - TU Gross area (m 2 ) 2,49 2,49 Light entering area (m 2 ) 2,22 2,22 Absorber surface (corrugate) (m 2 ) 2,20 2,20 Absorber material copper sheet with "Eta plus" selectiv surface coating Absorption coefficient (Eta plus) (%) 95 ± 2 95 ± 2 Emission coefficient (Eta plus) (%) 5 ± 2 5 ± 2 Cu Pipe register frame (mm) Ф 8 x 0,5 Ф 8 x 0,5 Collective Cu pipe frame (mm) Ф 22 x 0,8 Ф 22 x 0,8 Absorber volume (l) 1,7 1,7 Transparent front cover 2 x 4mm tempered solar glass with 9 mm space gap, filled up with argon Solar light transmission through glass (%) 96 ± 2 96 ± 2 Solar energy transmission through glass (%) 95 ± 2 95 ± 2 Number of connections 4 2 Connection diameter (R) Ф 22 Ф 22 Max. working / test pressure Stagnation temperature Insulation - back side Insulation - on the sides Back area Collector construction Welding method (bar) ( o C) 10 / mm elastomeric rubber foam / 40 mm glass wool (50kg/m 3 ) 12 mm elastomeric rubber foam / 10 mm glass wool (50kg/m 3 ) 0.5 mm embossed aluminium sheet aluminium profil AlMgSi 0,5 F22 ultrasonic Height (mm) Width (mm) Depth (mm) Weight (kg) Efficiency ( %) Collector efficiency Ta-Tm η0 = 0,8 Collector efficiency a1 = 2,5 W/(m²K) a2 = 0,01 W/(m²K²) Δp (kpa) 0,4 0,35 0,3 0,25 0,2 0,15 0,1 0,05 0 Pressure drop 0 0,02 0,04 0,06 0,08 0,1 0,12 Flow (kg/s) Pressure drop

12 M Solar collectors Solar system Solar storage tank Installation scheme ESK 2.5 SB / ESK 2.5 SB U Water heater with two serpetines ESK 2.5 SB / ESK 2.5 SB U M Combined boiler with solar collectors type ESK 2.5 SB T / ESK 2.5 SB TU Combined boiler with solar collectors type ESK 2.5 SB T / ESK 2.5 SB TU

13 Hydraulic connection Type ESK SB / ESK SB T Type ESK SB U / ESK SB TU Max. 6 collectors in line Type ESK SB / ESK SB T Max. 6 collectors in line Type ESK SB / ESK SB T Max. 6 collectors in line! During parallel connecting of two or more collectors fields, pay attention about equal flow. Unequal flow may occur disbalance of the system.

14 INSTALLATION MANUAL The base plate - Tray 1 (art ), is mounted on the roof beam using the M8 x 80 screws (art ). Base plate (Art ), is prepared so that it is always possible to use at least three screws. Carrier Profile - Tray 2 (art ), is placed on the basic plate - Tray 1 (art ). Grooved carrier profile and the base plate, allows removal of steps, such as height adjustment of the screw, and thus shortens the time of installation, as well as number of hours of the installer on the roof. Using self-locking screw M10 x 20 (art ) angular profile is associated with the carrier profile - Tray 2 (art ). Angular profile (art ), is an important element in universal mounting system. It is used in cross-mounting and it is connecting element between the universal profile (art ) and roof hooks - Tray 2 (art ). Universal profile (art ), is set to the angle profiles (art ). Fixing is done with self - locking screw M10 x 20 (art ) and screw channels. Screw channels are designed so that the screw can be tightened with torque of 17 Nm.

15 Parallel mounting with the roof line Anti slip protection - stainless steel shafts (art ), is placed on the lower profile for prevent sliding of the collectors during installation. Attaching the solar collector on a universal platform is performed using side brackets (art ).

16 INSTALLATION MANUAL On the already mounted base plate - Tray 1 (art ) and carrier profile - Tray 2 (art ), we placed the angle profile (art ) rotated for 90 degrees, using self - locking screw M10 x 20 (art ). Universal profiles (art ), using self-locking screw M10 x 20 (art ) and screw channels are placed on angular profile (art ), parallel to the roof beams. With angular panels - 90 o (art ), universal mounting platform is adapted for mounting under a certain angle. Achieving the desired angle is allowed by using variable angular plates (art ). Universal profiles with self-locking screw M10 x 20 (art ) and screw channels are placed on the corner plates (art ) and (art ).

17 FREE standing Mounting The angular profiles (art ) are placed on the universal profiles (art ), using self - locking screw M10 x 20 (art ) and screw channels. On the angular profile (art ), which is rotated for 90 degrees, universal profiles (art ) are set normal to the roof beams. On the lower profile of an already mounted, universal platform, is placed antislip protection - stainless steel shafts (art ), for prevent sliding of the collectors during installation. Attaching the solar collector on a universal platform is performed as well as in the parallel mounting with the roof line.

18 INSTALLATION MANUAL Facade mounting Solar collectors use four antislip protection bracket rain protection profile

19 CONNECTIONS EUROTERM solar thermal collectors are interconnected throught 22 mm common joints. Straight and corrugated stainless steel joints are recommended. - Hold firmly with the size 24 spanner and tighten the union nut onto the cutting connection with the size 27 spanner. - Avoid applying extra torsion on the Header as you install the connectors. Always use a spanner to fix the header and then install the connectors.

20 Euroterm d.o.o. Lece Koteski 50 Industrial area - Biljana Prilep, R. Macedonia tel fax info@euroterm.com.mk