THERMOSIPHONIC SOLAR WATER HEATERS / TECHNICAL DOCUMENTATION / JANUARY 2021 PAGE 4
II) TECHNICAL CHARACTERISTICS
Technical data
PRISMA flat plate selective collectors
Type
Prisma 2.0 Prisma 2.5
Gross area (m²)
2.00 m
2
2.50 m
2
Absorber area (m²)
1.90 m
2
2.37 m
2
Aperture area (m²)
1.91 m
2
2.39 m
2
W x L x H (mm) 1235x1625x85 1235x2020x85
Weight (kg) 29.15 35,4
Absorber capacity (l)
1,38 1,55
Housing Pre-painted and galvanized steel
Absorber Selective aluminum
Absorption 95+1
Emission (%) 5
Number of tubes
8
Absorber tube Dia.
8 mm
Glass 3.2 mm low iron mistlite tempered glass
Transmittance of glass (%)
>0,91
Insulation 30 mm glasswool
Stagnation temp at 1000
W/m²and 30C
180 C
Max. operating pressure
(bar)
10
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