Technical Specification Flat Collector Panels 5 - Vaillant auroTHERM VFK 900 Installation Manual

5 Technical specification flat collector panels
Collector-Type/Structural Type
1)
Gross area/aperture area
Format (L x W x H)
2)
Efficiency
Casing
Glass covering
Transmission
Absorber
Coating
Absorption
Emission
Volume
Heat carrier:
Operating pressure
Shutdown temperature
Solar sensor sleeve
Collector connection
Weight
1)
Aperture area (light impingement area) to DIN 4757
2)
to DIN 4757 Part 4
Table 5.1 Technical data
65
110
Fig. 5.1 Dimensional drawing
Installation Manual auroTHERM, VFK 900, 0020009584_01

Technical specification flat collector panels 5

Solar flat collector VFK 900
2
2,24/2,02 m
1930 x 1160 x 110 mm
o = 81,9%
k = 3,46 W/m•K
1
2 2
k = 0,0104 W/m K
2
c = 3 m/s
Aluminium with edge and back wall insulation 60 mm
4 mm solar safety glass
= 91%
Heat conduction plate of copper
Vacuum coating
= 95%
=5%
1,27 l
Anti-freeze fluid (propylene glycol with inhibitors)
Mix proportions available on request!
max. 10 bar
227 °C (to DIN 4757-3)
Inside diameter 6 mm
Stainless steel corrugated hose with 1/2" fittings
43 kg
1930
Absorber length = 1844
15