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Types of Solar Collectors
Flat Plate Solar Collectors



HELIEN FLAT PLATE FULL FACE SELECTIVE solar collectors with life time up to 25 years and various sizes meeting different requirements of markets and performances. Standard EN12975-2


Solar Collectors AFS

Type                                                                       Flat plate full face selective

Model                                                                     A(C) FS (15, 20, 24)/X

Abbreviation                                                           A or C- Material of absorber Al or Cu FS - full face selective

                                                                             (15, 20, 24) – Gross area of collector, 1.5, 2.0, 2.4 m²

                                                                             X – No. of risers


Dimension L,mm W,mm H,mm Weight,kg
Model
AFS15/9 1503 1003 85 31
AFS20/9 2003 1003 85 40
AFS24/11 1950 1233 85 45

Specification

  • Frame consisting of powder coated aluminium profile Alloy 606040, 1.4 mm thick, DIN 1748, ELOT 306
  • Prismatic tempered security glass 4 mm thick of stable thermal expansion coefficient, low iron with high transmission rate
  • Rock-wool thermal insulation density 50 kg/m³ with aluminium foil for back insulation, and Glass-wool thermal insulation density 60 kg/m³ with black colour layer for side insulation
  • A special design of EPDM gasket along with aluminium strip for restraining and water sealing of the glass
  • Backside cover made of galvanized sheet 0.5mm thick screwed to the Aluminium frame thru EPDM gasket from external side and a silicon layer from internal side

Absorbers made of:

a) Full face Aluminium sheet 0.5mm thick coated with selective mirotherm model AFS

b) Full face Copper sheet 0.2 or 0.3mm thick coated with selective mirotherm model CFS

  • All risers of solar collectors are made of copper tubes Ø 8mm and two copper manifolds Ø 22mm
  • Absorbers are stitched by laser welding to copper tubes
  • Standard EN12975-2

 

Technical characteristics for collectors with full face selective aluminium absorbers;

Model AFS 15-20/9, 24/11


Gross area,m² 1.5 2.0 2.4
Absorber surface,m² 1.38 1.97 2.25
No. of copper risers 9 9 11
Volume capacity, lit 1.24 1.42 1.7
Thickness back insulation,mm 30 30 30
Thickness side insulation,mm 20 20 20
Absorption coefficient 95 +/-2 95 +/-2 95 +/-2
Emission coefficient 5 +/-2 5 +/-2 5 +/-2
Glass transmission 91.5 91.5 91.5
Max working pressure,bar 10 10 10
Testing pressure,bar 15 15 15
Stagnation temperature,⁰C 183.3 183.3 183.3
Press. drop @ 1.2l/min/m²,mbar 1.6 2.4 3.0
Hydraulic connection 22 22 22
Installation position vertical vertical vertical

Solar Collectors AFS-SK

Type                                                                       Flat plate full face selective
Model                                                                   AFS-SK (15, 20, 24, 27)/X
Abbreviation                                                     A - Material of absorber Al
                                                                                 FS, SK - full face specific market
                                                                   (15, 20, 24, 27) – Gross area of collector, 1.5, 2.0, 2.4, 2.7m²
                                                                                iX – No. of risers


Specification

  • Frame of powder coated aluminium profile 1.0 mm thick
  • Prismatic tempered security glass 3.2 mm thick of stable thermal expansion coefficient, low iron with high
  • transmission rate
  • Backside is rock-wool density 50 kg/m³, and the side density is 60 kg/m³
  • Backside cover made of Aluzinc sheet 0.4mm thick screwed to the Aluminium frame thru EPDM gasket from external side and a silicon layer from internal side
  • Absorber made of Aluminium sheet 0.5mm thick coated with selective mirotherm
  • Risers of absorber are made of copper tubes Ø 8mm and two copper manifolds Ø 22mm

Technical for collectors with full face aluminium absorbers;
Model AFS-SK 15-20/8, 24/11, 27/11


Gross area,m² 1.5 2.0 2.37 2.72
Absorber surface,m² 1.38 1.87 2.23 2.57
No. of copper risers 9 9 11 11
Volume capacity,lit 1.21 1.4 1.7 1.85
Thickness back,mm 30 30 30 30
Thickness side,mm 20 20 20 20
Absorption coefficient 95 +/- 2 95 +/- 2 95 +/- 2 95 +/- 2
Emission coefficient 5 +/- 2 5 +/- 2 5 +/- 2 5 +/- 2
Glass transmission 91.5 91.5 91.5 91.5
Max working pressure, bar 10 10 10 10
Testing pressure, bar 15 15 15 15
Stegnation temperature, ⁰C 152 152 152 152
Press. drop @ 1.2l/min/m²,mbar 1.8 2.7 3.0 3.43
Hydraulic 22 22 22 22
Installation position vertical vertical vertical vertical

Solar Collectors AFS-LC


Type                                                                       Flat plate full face selective
Model                                                                     AFSLC (15, 20, 24, 27)/X
Abbreviation                                                          A - Material of absorber Al
                                                                              FS, LC - full face selective, commercial
                                                                      (15, 20, 24, 27) – Gross area of collector, 1.5, 2.0, 2.4, 2.7m²
                                                                              X – No. of risers


Dimension L,mm W,mm H,mm Weight,kg
Model        
AFS-LC15/7 1480 1010 86 25.5
AFS-LC20/7 1980 1010 86 33
AFS-LC24/10 1930 1230 86 39.5
AFS-LC27/12 2160 1260 86 44.5

Specification

  • Frame consisting of powder coated aluminium profile 1.0 mm thick
  • Prismatic tempered security glass 3.2 mm thick of stable thermal expansion coefficient, low iron with high
    transmission rate
  • Backside insulation is rock-wool density 20 kg/m³
  • Backside cover made of Aluzinc sheet 0.4mm thick screwed to the Aluminium frame thru PE gasket from
    external side and a silicon layer from internal side
  • Absorber made of Aluminium sheet 0.5mm thick coated with selective mirotherm
  • Risers of absorber are made of copper tubes Ø 8mm and two copper manifolds Ø 22mm

Technical characteristics for collectors with full face selective aluminium absorbers;
Model AFS-LC 15-20/7, 24/10, 27/12



Gross area,m² 1.5 2.0 2.37 2.72
Absorber surface,m² 1.38 1.87 2.23 2.57
No. of copper risers 7 7 10 12
Volume capac ity,lit 1.17 1.35 1.58 1.73
Thickness back insulation,mm 30 30 30 30
Thickness side insulation,mm 20 20 20 20
Absorption coefficient 95 +/- 2 95 +/- 2 95 +/- 2 95 +/- 2
Emission coefficient 5 +/- 2 5 +/- 2 5 +/- 2 5 +/- 2
Glass transmission 91.5 91.5 91.5 91.5
Max working pressure,bar 10 10 10 10
Testing pressure,bar 15 15 15 15
Stagnation temperature,⁰C 152 152 152 152
Press. drop @ 1.2l/min/m²,mbar 2.0 3.0 2.7 4.28
Hydraulic connection 22 22 22 22
Installation position vertical vertical vertical vertical