Technical Data - Vaillant auroTHERM VFK 125 Installation Manual

10 Technical data

10 Technical data
Absorber type
Dimensions (L x W x H)
Weight
Volume
Max. pressure
Stagnation temperature
Gross area
Aperture surface area
Absorber surface area
Absorber
Coating
Glass covering
Glass type
Transmission
Back wall insulation
Edge insulation
Efficiency ηo
Heat capacity
Heat loss factor (k )
1
Heat loss factor (k )
2
Table 10.1 Technical data
28
Units VFK 145 H/V
mm
kg
l
bar
°C
m 2
2
m
m 2
mm
mm
Solar safety glass (prismatic structure)
%
mm
2
W/m K
3
kg/m
%
Ws/m 2 K
W/m 2 K
2 2
W/m K
Serpentine horiz./vert.
2033 x 1233 x 80 (V)
1233 x 2033 x 80 (H)
38
2.16 (H)
1.85 (V)
10
171
2.51
2.35
2.33
Aluminium (vacuum coated) 0.5 x 1178 x 1978
High selective (blue)
α = 95 %
ε = 5 %
3.2 (thickness) x 1233 x 2033
τ = 91
40
λ = 0.035
ρ = 55
none
80.1 (H)
79.1 (V)
9700 (H)
8200 (V)
3.32 (H)
2.41 (V)
0.023 (H)
0.049 (V)
Installation manual auroTHERM 0020057143_04
VFK 150 H/V
172
Solar safety glass
(anti-reflex coating)
τ = 96
84.2 (H)
83.3 (V)
3.82 (H)
2.33 (V)
0.018 (H)
0.049 (V)