Velux CLI U12 SD0(W/L/F/P) 118 El B/U User Manual

32 – Part 5: Specifi cations – VELUX solar collector
Part 5: Specifi cations
VELUX solar collector
Measurements (inches)
Width Height Depth
Code U12 S06 M08 Code U12 S06 M08 All
Gross S 54.1 46.2 32.0 T 72.0 47.5 56.2 3.9
Frame
W 52.8 44.9 30.7 H 70.7 46.2 54.8
Glass
I 51.5 43.6 29.4 J 69.4 44.9 53.5
Aperture
E 49.5 41.6 27.4 F 67.4 42.9 51.6
Absorber
K 49.8 41.9 27.8 L 67.7 43.2 51.9
Packaging - 56.1 48.2 34.0 - 73.2 48.7 57.4 4.1
Technical specifi cations
U12 S06 M08
Weight (lbs.)
Collector weight 130 73 57
Weight w/fl uid 141 79 64
Collector area (sq. ft.)
Gross area 27.1 15.2 12.5
Aperture area 23.1 12.4 9.8
Absorber area 23.4 12.6 10.0
Fluid volume (gal.) 0.58 0.34 0.24
Max operating pressure (psi) 87 87 87
Test pressure (psi) 145 145 145
Stagnation temperature (°F) 374 374 365
Thermal performance rating - warm climate (1000s btu/day)
Clear day 29 15 12
Mildly cloudy day 20 11 8
Cloudy day 11 6 5
Thermal performance rating - cool climate (1000s btu/day)
Clear day 19 10 8
Mildly cloudy day 11 6 4
Cloudy day 4 2 1
E ciency
eta0 (start e ciency) 0.6960 0.6610 0.6390
a1 (Btu/hr*ft2*°F) 0.4747 0.4666 0.4603
a2 (Btu/hr*ft2*°F2) 0.0020 0.0019 0.0018

Velux CLI U12 SD0(W/L/F/P) 118 El B/U Specifications

General

Brand	Velux
Model	CLI U12 SD0(W/L/F/P) 118 El B/U
Category	Heating System
Language	English