Sunsystem VTC 15, Installation And Operation Manual

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22-EN
INSTALLATION and OPERATION MANUAL
Technical parameters of Evacuated-tube collector VTC VTC 15 VTC 20 VTC 30
Number of evacuated tubes Pcs. 15 20 30
Height Н mm 1980 1980 1980
Width L / Thickness D mm 1190/125 1570/125 2300/125
Overall surface m
2
2.36 3.11 4.55
Aperture surface m
2
1.412 1.882 2.824
Absorber surface m
2
1.215 1.62 2.429
Heat carrier fluid PG 50%
(Freezing point: -34°С)
Heat carrier volume L 0.94 1.24 1.82
Heat carrier flow rate L/m
2
h 60÷80 60÷80 60÷80
Evacuated tube material Heat-tempered borosilicate glass
SU-SS-ALN/AIN
Collector frame material / type Aluminium / Adjustable
Plastic parts material UV resistant plastic RAL 9005
Heat carrier pipes material / type Copper /Heat pipe TU 1
Coating of absorber Selective Coating
Manifold unit - box material/insulation E Anodized aluminum / Polyurethane
foam 30 mm
Efficiency ƞ0а in relation to aperture % 66
Thermal loss coefficient а
1а
W/(m
2
K) 1.500
Thermal loss coefficient а
2а
W/(m
2
K
2
) 0.020
Kθ,trans /Kθ,trans (50°), in relation to aperture 0,92/1,43
Stagnation temperature t
stg
°С 221
Max. operating temperature °С 180
Test pressure/ Max. operating pressure Bar 25/12
Pressure loss Δр Pa 150 200 600
Weight kg 43 57 86
Evacuated tube diameter/length K, Ø,mm Ø 58/1800
Distance b/n evacuated tubes J, mm 75
Heat carrier pipes diameter/number Ø, mm/ Бр. 14/15 14/20 14/30
Collecting pipe material/diameter Ø, mm Copper / Ø 22
Heat carrier Inlet/outlet diameter N,O
Ø, mm Ø 22
Temperature sensor sleeve S, Ø, mm 8
Evacuated tube holder P, pcs. 15 20 30
Number of outlets 2
Maximum number of collectors in one array /
installed surface
Pcs./m
2
8/20.14 7/22.85 6/28.2
Standard: EN 12975: 2006-06

Certificate: CEN - Keymark No 011-7S1807-R
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