Vaillant auroTHERM VFK 900, Руководство по запуску, обслуживанию и устранению неисправностей

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Manual - Solar hot water systems 0020009607_02 10
Technical data, tube collectors
Appliance designation Units auroTHERM exclusive VTK 570
Surface area (gross, aperture/net) m 2 1,28 / 0,82
Height mm 1695
Width mm 790
Depth mm 100
Weight kg 20
Collector capacity l 3,56
Copper pipe connection, flat-face Thread 3/4“
Insulation: high-vacuum bar 10 -6
Max. operating pressure bar 6
Spiegel Reinsilber, Reflexionsgrad
ρ
%
94
±
1
Absorber emission
ε
%
5
±
2
Absorber absorption
α
%
95
±
1,0
Solar sensor sleeve
∅
mm
6
CE label 0036
Shutdown temperature (according to prEN 12975-2,
c < 1 m/s) in the glass tube °C 250
Shutdown temperature (according to prEN 12975-2,
c < 1 m/s) at the collector connection °C 180
Efficiency
η
0
(according to 12975) % 78
±
3%
Efficiency coefficient k
1
W/(m 2 •K) 1,09
±
0,2
Efficiency coefficient k
2
W/(m 2 •K 2 ) 0,01
±
0,002
Table 4.1 Technical data, auroTHERM exclusive tube collectors
0
0%
10%
20%
30%
40%
50%
60%
70%
80%
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Δ
T = T
Collector
- T
Ambient air
[K]
Efficiency
η
Fig. 4.3 Efficiency of auroTHERM collector with radiation ener-
gy content of 300 W/m 2
4 Description of the components